/*
 * See LICENSE file for copyright and license details.
 */
#include "wlr-layer-shell-unstable-v1-protocol.h"
#include "wlr/util/box.h"
#include "wlr/util/edges.h"
#include <getopt.h>
#include <libinput.h>
#include <limits.h>
#include <linux/input-event-codes.h>
#include <scenefx/render/fx_renderer/fx_renderer.h>
#include <scenefx/types/fx/blur_data.h>
#include <scenefx/types/fx/clipped_region.h>
#include <scenefx/types/fx/corner_location.h>
#include <scenefx/types/wlr_scene.h>
#include <signal.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <wayland-server-core.h>
#include <wayland-util.h>
#include <wlr/backend.h>
#include <wlr/backend/headless.h>
#include <wlr/backend/libinput.h>
#include <wlr/backend/multi.h>
#include <wlr/backend/wayland.h>
#include <wlr/interfaces/wlr_keyboard.h>
#include <wlr/render/allocator.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_alpha_modifier_v1.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_cursor_shape_v1.h>
#include <wlr/types/wlr_data_control_v1.h>
#include <wlr/types/wlr_data_device.h>
#include <wlr/types/wlr_drm.h>
#include <wlr/types/wlr_drm_lease_v1.h>
#include <wlr/types/wlr_export_dmabuf_v1.h>
#include <wlr/types/wlr_ext_data_control_v1.h>
#include <wlr/types/wlr_ext_image_capture_source_v1.h>
#include <wlr/types/wlr_ext_image_copy_capture_v1.h>
#include <wlr/types/wlr_fractional_scale_v1.h>
#include <wlr/types/wlr_gamma_control_v1.h>
#include <wlr/types/wlr_idle_inhibit_v1.h>
#include <wlr/types/wlr_idle_notify_v1.h>
#include <wlr/types/wlr_input_device.h>
#include <wlr/types/wlr_keyboard.h>
#include <wlr/types/wlr_keyboard_group.h>
#include <wlr/types/wlr_keyboard_shortcuts_inhibit_v1.h>
#include <wlr/types/wlr_layer_shell_v1.h>
#include <wlr/types/wlr_linux_dmabuf_v1.h>
#include <wlr/types/wlr_linux_drm_syncobj_v1.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_output_management_v1.h>
#include <wlr/types/wlr_output_power_management_v1.h>
#include <wlr/types/wlr_pointer.h>
#include <wlr/types/wlr_pointer_constraints_v1.h>
#include <wlr/types/wlr_pointer_gestures_v1.h>
#include <wlr/types/wlr_presentation_time.h>
#include <wlr/types/wlr_primary_selection.h>
#include <wlr/types/wlr_primary_selection_v1.h>
#include <wlr/types/wlr_relative_pointer_v1.h>
#include <wlr/types/wlr_screencopy_v1.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/types/wlr_server_decoration.h>
#include <wlr/types/wlr_session_lock_v1.h>
#include <wlr/types/wlr_single_pixel_buffer_v1.h>
#include <wlr/types/wlr_subcompositor.h>
#include <wlr/types/wlr_switch.h>
#include <wlr/types/wlr_tablet_pad.h>
#include <wlr/types/wlr_tablet_tool.h>
#include <wlr/types/wlr_tablet_v2.h>
#include <wlr/types/wlr_viewporter.h>
#include <wlr/types/wlr_virtual_keyboard_v1.h>
#include <wlr/types/wlr_virtual_pointer_v1.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include <wlr/types/wlr_xdg_activation_v1.h>
#include <wlr/types/wlr_xdg_decoration_v1.h>
#include <wlr/types/wlr_xdg_foreign_registry.h>
#include <wlr/types/wlr_xdg_foreign_v1.h>
#include <wlr/types/wlr_xdg_foreign_v2.h>
#include <wlr/types/wlr_xdg_output_v1.h>
#include <wlr/types/wlr_xdg_shell.h>
#include <wlr/util/log.h>
#include <wlr/util/region.h>
#include <wordexp.h>
#include <xkbcommon/xkbcommon.h>
#ifdef XWAYLAND
#include <X11/Xlib.h>
#include <wlr/xwayland.h>
#include <xcb/xcb_icccm.h>
#endif
#include "common/util.h"

/* macros */
#define MAX(A, B) ((A) > (B) ? (A) : (B))
#define MIN(A, B) ((A) < (B) ? (A) : (B))
#define GEZERO(A) ((A) >= 0 ? (A) : 0)
#define CLEANMASK(mask) (mask & ~WLR_MODIFIER_CAPS)
#define INSIDEMON(A)                                                           \
	(A->geom.x >= A->mon->m.x && A->geom.y >= A->mon->m.y &&                   \
	 A->geom.x + A->geom.width <= A->mon->m.x + A->mon->m.width &&             \
	 A->geom.y + A->geom.height <= A->mon->m.y + A->mon->m.height)
#define GEOMINSIDEMON(A, M)                                                    \
	(A->x >= M->m.x && A->y >= M->m.y &&                                       \
	 A->x + A->width <= M->m.x + M->m.width &&                                 \
	 A->y + A->height <= M->m.y + M->m.height)
#define ISTILED(A)                                                             \
	(A && !(A)->isfloating && !(A)->isminimized && !(A)->iskilling &&          \
	 !(A)->ismaximizescreen && !(A)->isfullscreen && !(A)->isunglobal)
#define ISSCROLLTILED(A)                                                       \
	(A && !(A)->isfloating && !(A)->isminimized && !(A)->iskilling &&          \
	 !(A)->isunglobal)
#define ISFAKETILED(A)                                                         \
	(A && !(A)->isfloating && !(A)->isminimized && !(A)->iskilling &&          \
	 !(A)->isunglobal)
#define VISIBLEON(C, M)                                                        \
	((C) && (M) && (C)->mon == (M) &&                                          \
	 (((C)->tags & (M)->tagset[(M)->seltags] || (C)->isglobal ||               \
	   (C)->isunglobal)))
#define LENGTH(X) (sizeof X / sizeof X[0])
#define END(A) ((A) + LENGTH(A))
#define TAGMASK ((1 << LENGTH(tags)) - 1)
#define LISTEN(E, L, H) wl_signal_add((E), ((L)->notify = (H), (L)))
#define ISFULLSCREEN(A)                                                        \
	((A)->isfullscreen || (A)->ismaximizescreen ||                             \
	 (A)->overview_ismaximizescreenbak || (A)->overview_isfullscreenbak)
#define LISTEN_STATIC(E, H)                                                    \
	do {                                                                       \
		struct wl_listener *_l = ecalloc(1, sizeof(*_l));                      \
		_l->notify = (H);                                                      \
		wl_signal_add((E), _l);                                                \
	} while (0)

#define APPLY_INT_PROP(obj, rule, prop)                                        \
	if (rule->prop >= 0)                                                       \
	obj->prop = rule->prop

#define APPLY_FLOAT_PROP(obj, rule, prop)                                      \
	if (rule->prop > 0.0f)                                                     \
	obj->prop = rule->prop

#define APPLY_STRING_PROP(obj, rule, prop)                                     \
	if (rule->prop != NULL)                                                    \
	obj->prop = rule->prop

#define BAKED_POINTS_COUNT 256

#define IPC_WATCH_ARRANGGE                                                     \
	IPC_WATCH_MONITOR | IPC_WATCH_CLIENT | IPC_WATCH_TAGS |                    \
		IPC_WATCH_ALL_MONITORS | IPC_WATCH_ALL_TAGS | IPC_WATCH_ALL_CLIENTS |  \
		IPC_WATCH_LAST_OPEN_SURFACE | IPC_WATCH_FOCUSING_CLIENT

/* enums */
enum { TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, BOTTOM_RIGHT };

enum { VERTICAL, HORIZONTAL };
enum { SWIPE_UP, SWIPE_DOWN, SWIPE_LEFT, SWIPE_RIGHT };
enum { CurNormal, CurPressed, CurMove, CurResize }; /* cursor */
enum { XDGShell, LayerShell, X11 };					/* client types */
enum { AxisUp, AxisDown, AxisLeft, AxisRight };		// 滚轮滚动的方向
enum {
	LyrBg,
	LyrBlur,
	LyrBottom,
	LyrTile,
	LyrTop,
	LyrFadeOut,
	LyrOverlay,
	LyrIMPopup, // text-input layer
	LyrBlock,
	NUM_LAYERS
}; /* scene layers */
#ifdef XWAYLAND
enum {
	NetWMWindowTypeDialog,
	NetWMWindowTypeSplash,
	NetWMWindowTypeToolbar,
	NetWMWindowTypeUtility,
	NetLast
}; /* EWMH atoms */
#endif
enum { UP, DOWN, LEFT, RIGHT, UNDIR }; /* smartmovewin */
enum { NONE, OPEN, MOVE, CLOSE, TAG, FOCUS, OPAFADEIN, OPAFADEOUT, OVERVIEW };
enum { UNFOLD, FOLD, INVALIDFOLD };
enum { PREV, NEXT };
enum { STATE_UNSPECIFIED = 0, STATE_ENABLED, STATE_DISABLED };
enum { FORCE, UNFORCE };

enum tearing_mode {
	TEARING_DISABLED = 0,
	TEARING_ENABLED,
	TEARING_FULLSCREEN_ONLY,
};

enum seat_config_shortcuts_inhibit {
	SHORTCUTS_INHIBIT_DISABLE,
	SHORTCUTS_INHIBIT_ENABLE,
};

enum ipc_watch_type {
	IPC_WATCH_NONE = 0,
	IPC_WATCH_MONITOR = 1 << 0,
	IPC_WATCH_CLIENT = 1 << 1,
	IPC_WATCH_TAGS = 1 << 2,
	IPC_WATCH_ALL_MONITORS = 1 << 3,
	IPC_WATCH_ALL_TAGS = 1 << 4,
	IPC_WATCH_ALL_CLIENTS = 1 << 5,
	IPC_WATCH_KEYMODE = 1 << 6,
	IPC_WATCH_KB_LAYOUT = 1 << 7,
	IPC_WATCH_LAST_OPEN_SURFACE = 1 << 8,
	IPC_WATCH_FOCUSING_CLIENT = 1 << 9,
};

typedef struct Pertag Pertag;
typedef struct Monitor Monitor;
typedef struct Client Client;

struct dvec2 {
	double x, y;
};

struct ivec2 {
	int32_t x, y, width, height;
};

typedef struct {
	int32_t i;
	int32_t i2;
	float f;
	float f2;
	char *v;
	char *v2;
	char *v3;
	uint32_t ui;
	uint32_t ui2;
	Client *tc;
} Arg;

typedef struct {
	uint32_t mod;
	uint32_t button;
	int32_t (*func)(const Arg *);
	const Arg arg;
} Button; // 鼠标按键

typedef struct {
	char mode[28];
	bool isdefault;
} KeyMode;

typedef struct {
	uint32_t mod;
	uint32_t dir;
	int32_t (*func)(const Arg *);
	const Arg arg;
} Axis;

typedef struct {
	struct wl_list link;
	struct wlr_input_device *wlr_device;
	struct libinput_device *libinput_device;
	struct wl_listener destroy_listener; // 用于监听设备销毁事件
	void *device_data;					 // 新增：指向设备特定数据（如 Switch）
} InputDevice;

typedef struct {
	struct wl_list link;
	struct wlr_switch *wlr_switch;
	struct wl_listener toggle;
	InputDevice *input_dev;
} Switch;

struct dwl_animation {
	bool should_animate;
	bool running;
	bool tagining;
	bool tagouted;
	bool tagouting;
	bool begin_fade_in;
	bool tag_from_rule;
	bool overining;
	uint32_t time_started;
	uint32_t duration;
	struct wlr_box initial;
	struct wlr_box current;
	int32_t action;
};

struct dwl_opacity_animation {
	bool running;
	float current_opacity;
	float target_opacity;
	float initial_opacity;
	uint32_t time_started;
	uint32_t duration;
	float current_border_color[4];
	float target_border_color[4];
	float initial_border_color[4];
};

typedef struct {
	float width_scale;
	float height_scale;
	int32_t width;
	int32_t height;
	enum corner_location corner_location;
	bool should_scale;
} BufferData;

struct Client {
	/* Must keep these three elements in this order */
	uint32_t type; /* XDGShell or X11* */
	struct wlr_box geom, pending, float_geom, animainit_geom,
		overview_backup_geom, current,
		drag_begin_geom; /* layout-relative, includes border */
	Monitor *mon;
	struct wlr_scene_tree *scene;
	struct wlr_scene_rect *border; /* top, bottom, left, right */
	struct wlr_scene_rect *droparea;
	struct wlr_scene_rect *splitindicator[4];
	struct wlr_scene_shadow *shadow;
	struct wlr_scene_tree *scene_surface;
	struct wlr_scene_tree *overview_scene_surface;
	struct wl_list link;
	struct wl_list flink;
	struct wl_list fadeout_link;
	union {
		struct wlr_xdg_surface *xdg;
		struct wlr_xwayland_surface *xwayland;
	} surface;
	struct wl_listener commit;
	struct wl_listener map;
	struct wl_listener maximize;
	struct wl_listener minimize;
	struct wl_listener unmap;
	struct wl_listener destroy;
	struct wl_listener set_title;
	struct wl_listener fullscreen;
#ifdef XWAYLAND
	struct wl_listener activate;
	struct wl_listener associate;
	struct wl_listener dissociate;
	struct wl_listener configure;
	struct wl_listener set_hints;
	struct wl_listener set_geometry;
	struct wl_listener commmitx11;
#endif
	uint32_t bw;
	uint32_t tags, oldtags, mini_restore_tag;
	bool dirty;
	uint32_t configure_serial;
	struct wlr_foreign_toplevel_handle_v1 *foreign_toplevel;
	int32_t isfloating, isurgent, isfullscreen, isfakefullscreen,
		need_float_size_reduce, isminimized, isoverlay, isnosizehint,
		ignore_maximize, ignore_minimize, idleinhibit_when_focus;
	int32_t ismaximizescreen;
	int32_t overview_backup_bw;
	int32_t fullscreen_backup_x, fullscreen_backup_y, fullscreen_backup_w,
		fullscreen_backup_h;
	int32_t overview_isfullscreenbak, overview_ismaximizescreenbak,
		overview_isfloatingbak;

	struct wlr_xdg_toplevel_decoration_v1 *decoration;
	struct wl_listener foreign_activate_request;
	struct wl_listener foreign_fullscreen_request;
	struct wl_listener foreign_close_request;
	struct wl_listener foreign_destroy;
	struct wl_listener foreign_minimize_request;
	struct wl_listener foreign_maximize_request;
	struct wl_listener set_decoration_mode;
	struct wl_listener destroy_decoration;

	const char *animation_type_open;
	const char *animation_type_close;
	int32_t is_in_scratchpad;
	int32_t iscustomsize;
	int32_t iscustompos;
	int32_t is_scratchpad_show;
	int32_t isglobal;
	int32_t isnoborder;
	int32_t isnoshadow;
	int32_t isnoradius;
	int32_t isnoanimation;
	int32_t isopensilent;
	int32_t istagsilent;
	int32_t iskilling;
	int32_t istagswitching;
	int32_t isnamedscratchpad;
	bool is_pending_open_animation;
	bool is_restoring_from_ov;
	float scroller_proportion;
	float stack_proportion;
	float old_stack_proportion;
	bool need_output_flush;
	struct dwl_animation animation;
	struct dwl_opacity_animation opacity_animation;
	int32_t isterm, noswallow;
	int32_t allow_csd;
	int32_t force_fakemaximize;
	int32_t force_tiled_state;
	pid_t pid;
	Client *swallowing, *swallowedby;
	bool is_clip_to_hide;
	bool drag_to_tile;
	bool scratchpad_switching_mon;
	bool fake_no_border;
	int32_t nofocus;
	int32_t nofadein;
	int32_t nofadeout;
	int32_t no_force_center;
	int32_t isunglobal;
	float focused_opacity;
	float unfocused_opacity;
	char oldmonname[128];
	int32_t noblur;
	double master_mfact_per, master_inner_per, stack_inner_per;
	double old_master_mfact_per, old_master_inner_per, old_stack_inner_per;
	double old_scroller_pproportion;
	bool ismaster;
	bool old_ismaster;
	bool cursor_in_upper_half, cursor_in_left_half;
	bool isleftstack;
	int32_t tearing_hint;
	int32_t force_tearing;
	int32_t allow_shortcuts_inhibit;
	float scroller_proportion_single;
	bool isfocusing;
	bool enable_drop_area_draw;
	int32_t drop_direction;
	struct wlr_box drag_tile_float_backup_geom;
	float grid_col_per;
	float grid_row_per;
	float old_grid_col_per;
	float old_grid_row_per;
	int32_t grid_col_idx;
	int32_t grid_row_idx;
	uint32_t id;
};

typedef struct {
	struct wl_list link;
	struct wl_resource *resource;
	Monitor *mon;
} DwlIpcOutput;

typedef struct {
	uint32_t mod;
	xkb_keysym_t keysym;
	int32_t (*func)(const Arg *);
	const Arg arg;
} Key;

typedef struct {
	struct wlr_keyboard_group *wlr_group;

	int32_t nsyms;
	const xkb_keysym_t *keysyms; /* invalid if nsyms == 0 */
	uint32_t mods;				 /* invalid if nsyms == 0 */
	uint32_t keycode;
	struct wl_event_source *key_repeat_source;

	struct wl_listener modifiers;
	struct wl_listener key;
	struct wl_listener destroy;

	uint32_t layout_index;
} KeyboardGroup;

typedef struct {
	struct wlr_keyboard_shortcuts_inhibitor_v1 *inhibitor;
	struct wl_listener destroy;
	struct wl_list link;
} KeyboardShortcutsInhibitor;

typedef struct {
	/* Must keep these three elements in this order */
	uint32_t type; /* LayerShell */
	struct wlr_box geom, current, pending, animainit_geom;
	Monitor *mon;
	struct wlr_scene_tree *scene;
	struct wlr_scene_tree *popups;
	struct wlr_scene_shadow *shadow;
	struct wlr_scene_layer_surface_v1 *scene_layer;
	struct wl_list link;
	struct wl_list fadeout_link;
	int32_t mapped;
	struct wlr_layer_surface_v1 *layer_surface;

	struct wl_listener destroy;
	struct wl_listener map;
	struct wl_listener unmap;
	struct wl_listener surface_commit;

	struct dwl_animation animation;
	bool dirty;
	int32_t noblur;
	int32_t noanim;
	int32_t noshadow;
	char *animation_type_open;
	char *animation_type_close;
	bool need_output_flush;
	bool being_unmapped;
} LayerSurface;

typedef struct {
	struct wlr_xdg_popup *wlr_popup;
	struct wl_listener destroy;
	struct wl_listener commit;
	struct wl_listener reposition;
} Popup;

typedef struct {
	const char *symbol;
	void (*arrange)(Monitor *);
	const char *name;
	uint32_t id;
} Layout;

struct Monitor {
	struct wl_list link;
	struct wlr_output *wlr_output;
	struct wlr_scene_output *scene_output;
	struct wlr_output_state pending;
	struct wl_listener frame;
	struct wl_listener destroy;
	struct wl_listener request_state;
	struct wl_listener destroy_lock_surface;
	struct wlr_session_lock_surface_v1 *lock_surface;
	struct wl_event_source *skip_frame_timeout;
	struct wlr_box m;		  /* monitor area, layout-relative */
	struct wlr_box w;		  /* window area, layout-relative */
	struct wl_list layers[4]; /* LayerSurface::link */
	uint32_t seltags;
	uint32_t tagset[2];
	bool skiping_frame;
	uint32_t resizing_count_pending;
	uint32_t resizing_count_current;

	struct wl_list dwl_ipc_outputs;
	int32_t gappih; /* horizontal gap between windows */
	int32_t gappiv; /* vertical gap between windows */
	int32_t gappoh; /* horizontal outer gaps */
	int32_t gappov; /* vertical outer gaps */
	Pertag *pertag;
	uint32_t ovbk_current_tagset;
	uint32_t ovbk_prev_tagset;
	Client *sel, *prevsel;
	int32_t isoverview;
	int32_t is_in_hotarea;
	int32_t asleep;
	uint32_t visible_clients;
	uint32_t visible_tiling_clients;
	uint32_t visible_scroll_tiling_clients;
	uint32_t visible_fake_tiling_clients;
	struct wlr_scene_optimized_blur *blur;
	char last_open_surface[256];
	struct wlr_ext_workspace_group_handle_v1 *ext_group;
	bool iscleanuping;
	int8_t carousel_anim_dir;
};

typedef struct {
	struct wlr_pointer_constraint_v1 *constraint;
	struct wl_listener destroy;
} PointerConstraint;

typedef struct {
	struct wlr_scene_tree *scene;

	struct wlr_session_lock_v1 *lock;
	struct wl_listener new_surface;
	struct wl_listener unlock;
	struct wl_listener destroy;
} SessionLock;

typedef struct DwindleNode DwindleNode;
struct DwindleNode {
	bool is_split;
	bool split_h;
	bool split_locked;
	bool custom_leaf_split_h;
	float ratio;
	float drag_init_ratio;
	int32_t container_x;
	int32_t container_y;
	int32_t container_w;
	int32_t container_h;
	DwindleNode *parent;
	DwindleNode *first;
	DwindleNode *second;
	Client *client;
};

struct ScrollerStackNode {
	Client *client;
	float scroller_proportion;
	float stack_proportion;
	float scroller_proportion_single;

	struct ScrollerStackNode *next_in_stack;
	struct ScrollerStackNode *prev_in_stack;
	struct ScrollerStackNode *all_next;
};

struct TagScrollerState {
	struct ScrollerStackNode *all_first; /* 所有节点的单链表头 */
	int count;
};

typedef struct {
	int32_t orig_width;
	int32_t orig_height;
	bool is_subsurface;
	struct wl_listener destroy;
} SnapshotMetadata;

/* function declarations */
static void applybounds(
	Client *c,
	struct wlr_box *bbox); // 设置边界规则,能让一些窗口拥有比较适合的大小
static void applyrules(Client *c); // 窗口规则应用,应用config.h中定义的窗口规则
static void arrange(Monitor *m, bool want_animation,
					bool from_view); // 布局函数,让窗口俺平铺规则移动和重置大小
static void arrangelayer(Monitor *m, struct wl_list *list,
						 struct wlr_box *usable_area, int32_t exclusive);
static void arrangelayers(Monitor *m);
static void handle_print_status(struct wl_listener *listener, void *data);
static void axisnotify(struct wl_listener *listener,
					   void *data); // 滚轮事件处理
static void buttonpress(struct wl_listener *listener,
						void *data); // 鼠标按键事件处理
static bool handle_buttonpress(struct wlr_pointer_button_event *event);
static int32_t ongesture(struct wlr_pointer_swipe_end_event *event);
static void swipe_begin(struct wl_listener *listener, void *data);
static void swipe_update(struct wl_listener *listener, void *data);
static void swipe_end(struct wl_listener *listener, void *data);
static void pinch_begin(struct wl_listener *listener, void *data);
static void pinch_update(struct wl_listener *listener, void *data);
static void pinch_end(struct wl_listener *listener, void *data);
static void hold_begin(struct wl_listener *listener, void *data);
static void hold_end(struct wl_listener *listener, void *data);
static void checkidleinhibitor(struct wlr_surface *exclude);
static void cleanup(void);										  // 退出清理
static void cleanupmon(struct wl_listener *listener, void *data); // 退出清理
static void closemon(Monitor *m);
static void cleanuplisteners(void);
static void toggle_hotarea(int32_t x_root, int32_t y_root); // 触发热区
static void maplayersurfacenotify(struct wl_listener *listener, void *data);
static void commitlayersurfacenotify(struct wl_listener *listener, void *data);
static void commitnotify(struct wl_listener *listener, void *data);
static void createdecoration(struct wl_listener *listener, void *data);
static void createidleinhibitor(struct wl_listener *listener, void *data);
static void createkeyboard(struct wlr_keyboard *keyboard);
static void requestmonstate(struct wl_listener *listener, void *data);
static void createlayersurface(struct wl_listener *listener, void *data);
static void createlocksurface(struct wl_listener *listener, void *data);
static void createmon(struct wl_listener *listener, void *data);
static void createnotify(struct wl_listener *listener, void *data);
static void createpointer(struct wlr_pointer *pointer);
static void configure_pointer(struct libinput_device *device);
static void destroyinputdevice(struct wl_listener *listener, void *data);
static void createswitch(struct wlr_switch *switch_device);
static void switch_toggle(struct wl_listener *listener, void *data);
static void createpointerconstraint(struct wl_listener *listener, void *data);
static void cursorconstrain(struct wlr_pointer_constraint_v1 *constraint);
static void commitpopup(struct wl_listener *listener, void *data);
static void createpopup(struct wl_listener *listener, void *data);
static void cursorframe(struct wl_listener *listener, void *data);
static void cursorwarptohint(void);
static void destroydecoration(struct wl_listener *listener, void *data);
static void destroydragicon(struct wl_listener *listener, void *data);
static void destroyidleinhibitor(struct wl_listener *listener, void *data);
static void destroylayernodenotify(struct wl_listener *listener, void *data);
static void destroylock(SessionLock *lock, int32_t unlocked);
static void destroylocksurface(struct wl_listener *listener, void *data);
static void destroynotify(struct wl_listener *listener, void *data);
static void destroypointerconstraint(struct wl_listener *listener, void *data);
static void destroysessionlock(struct wl_listener *listener, void *data);
static void destroykeyboardgroup(struct wl_listener *listener, void *data);
static Monitor *dirtomon(enum wlr_direction dir);
static void setcursorshape(struct wl_listener *listener, void *data);

static void focusclient(Client *c, int32_t lift);

static void setborder_color(Client *c);
static Client *focustop(Monitor *m);
static void fullscreennotify(struct wl_listener *listener, void *data);
static void gpureset(struct wl_listener *listener, void *data);

static int32_t keyrepeat(void *data);

static void inputdevice(struct wl_listener *listener, void *data);
static int32_t keybinding(uint32_t state, bool locked, uint32_t mods,
						  xkb_keysym_t sym, uint32_t keycode);
static void keypress(struct wl_listener *listener, void *data);
static void keypressmod(struct wl_listener *listener, void *data);
static bool keypressglobal(struct wlr_surface *last_surface,
						   struct wlr_keyboard *keyboard,
						   struct wlr_keyboard_key_event *event, uint32_t mods,
						   xkb_keysym_t keysym, uint32_t keycode);
static void locksession(struct wl_listener *listener, void *data);
static void mapnotify(struct wl_listener *listener, void *data);
static void maximizenotify(struct wl_listener *listener, void *data);
static void minimizenotify(struct wl_listener *listener, void *data);
static void motionabsolute(struct wl_listener *listener, void *data);
static void motionnotify(uint32_t time, struct wlr_input_device *device,
						 double sx, double sy, double sx_unaccel,
						 double sy_unaccel);
static void motionrelative(struct wl_listener *listener, void *data);

static void reset_foreign_tolevel(Client *c, Monitor *oldmon, Monitor *newmon);
static void add_foreign_topleve(Client *c);
static void exchange_two_client(Client *c1, Client *c2);
static void outputmgrapply(struct wl_listener *listener, void *data);
static void outputmgrapplyortest(struct wlr_output_configuration_v1 *config,
								 int32_t test);
static void outputmgrtest(struct wl_listener *listener, void *data);
static void pointerfocus(Client *c, struct wlr_surface *surface, double sx,
						 double sy, uint32_t time);
static void printstatus(enum ipc_watch_type type);
static void quitsignal(int32_t signo);
static void powermgrsetmode(struct wl_listener *listener, void *data);
static void rendermon(struct wl_listener *listener, void *data);
static void requestdecorationmode(struct wl_listener *listener, void *data);
static void requestdrmlease(struct wl_listener *listener, void *data);
static void requeststartdrag(struct wl_listener *listener, void *data);
static void resize(Client *c, struct wlr_box geo, int32_t interact);
static void run(char *startup_cmd);
static void setcursor(struct wl_listener *listener, void *data);
static void setfloating(Client *c, int32_t floating);
static void setfakefullscreen(Client *c, int32_t fakefullscreen);
static void setfullscreen(Client *c, int32_t fullscreen, bool rearrange);
static void setmaximizescreen(Client *c, int32_t maximizescreen,
							  bool rearrange);
static void reset_maximizescreen_size(Client *c);
static void setgaps(int32_t oh, int32_t ov, int32_t ih, int32_t iv);

static void setmon(Client *c, Monitor *m, uint32_t newtags, bool focus);
static void setpsel(struct wl_listener *listener, void *data);
static void setsel(struct wl_listener *listener, void *data);
static void setup(void);
static void startdrag(struct wl_listener *listener, void *data);

static void unlocksession(struct wl_listener *listener, void *data);
static void unmaplayersurfacenotify(struct wl_listener *listener, void *data);
static void unmapnotify(struct wl_listener *listener, void *data);
static void updatemons(struct wl_listener *listener, void *data);
static void updatetitle(struct wl_listener *listener, void *data);
static void urgent(struct wl_listener *listener, void *data);
static void view(const Arg *arg, bool want_animation);

static void handlesig(int32_t signo);
static void
handle_keyboard_shortcuts_inhibit_new_inhibitor(struct wl_listener *listener,
												void *data);
static void virtualkeyboard(struct wl_listener *listener, void *data);
static void virtualpointer(struct wl_listener *listener, void *data);
static void warp_cursor(const Client *c);
static Monitor *xytomon(double x, double y);
static void xytonode(double x, double y, struct wlr_surface **psurface,
					 Client **pc, LayerSurface **pl, double *nx, double *ny);
static void clear_fullscreen_flag(Client *c);
static pid_t getparentprocess(pid_t p);
static int32_t isdescprocess(pid_t p, pid_t c);
static Client *termforwin(Client *w);
static void swallow(Client *c, Client *w);

static void warp_cursor_to_selmon(Monitor *m);
uint32_t want_restore_fullscreen(Client *target_client);
static void overview_restore(Client *c, const Arg *arg);
static void overview_backup(Client *c);
static void set_minimized(Client *c);

static void show_scratchpad(Client *c);
static void show_hide_client(Client *c);
static void tag_client(const Arg *arg, Client *target_client);

static struct wlr_box setclient_coordinate_center(Client *c, Monitor *m,
												  struct wlr_box geom,
												  int32_t offsetx,
												  int32_t offsety);
static uint32_t get_tags_first_tag(uint32_t tags);

static struct wlr_output_mode *
get_nearest_output_mode(struct wlr_output *output, int32_t width,
						int32_t height, float refresh);

static void client_commit(Client *c);
static void layer_commit(LayerSurface *l);
static void apply_border(Client *c);
static void client_set_opacity(Client *c, double opacity);
static void init_baked_points(void);
static void scene_buffer_apply_opacity(struct wlr_scene_buffer *buffer,
									   int32_t sx, int32_t sy, void *data);

static Client *direction_select(const Arg *arg);
static void view_in_mon(const Arg *arg, bool want_animation, Monitor *m,
						bool changefocus);

static void buffer_set_effect(Client *c, BufferData buffer_data);
static void snap_scene_buffer_apply_effect(struct wlr_scene_buffer *buffer,
										   int32_t sx, int32_t sy, void *data);
static void client_set_pending_state(Client *c);
static void layer_set_pending_state(LayerSurface *l);
static void set_rect_size(struct wlr_scene_rect *rect, int32_t width,
						  int32_t height);
static Client *center_tiled_select(Monitor *m);
static void handlecursoractivity(void);
static int32_t hidecursor(void *data);
static bool check_hit_no_border(Client *c);
static void reset_keyboard_layout(void);
static void client_update_oldmonname_record(Client *c, Monitor *m);
static void pending_kill_client(Client *c);
static uint32_t get_tags_first_tag_num(uint32_t source_tags);
static void set_layer_open_animaiton(LayerSurface *l, struct wlr_box geo);
static void init_fadeout_layers(LayerSurface *l);
static void layer_actual_size(LayerSurface *l, int32_t *width, int32_t *height);
static void get_layer_target_geometry(LayerSurface *l,
									  struct wlr_box *target_box);
static void scene_buffer_apply_effect(struct wlr_scene_buffer *buffer,
									  int32_t sx, int32_t sy, void *data);
static double find_animation_curve_at(double t, int32_t type);

static void apply_opacity_to_rect_nodes(Client *c, struct wlr_scene_node *node,
										double animation_passed);
static enum corner_location set_client_corner_location(Client *c);
static double all_output_frame_duration_ms();
static struct wlr_scene_tree *
wlr_scene_tree_snapshot(struct wlr_scene_node *node,
						struct wlr_scene_tree *parent);
static bool is_scroller_layout(Monitor *m);
static bool is_centertile_layout(Monitor *m);
static void create_output(struct wlr_backend *backend, void *data);
static void get_layout_abbr(char *abbr, const char *full_name);
static void apply_named_scratchpad(Client *target_client);
static Client *get_client_by_id_or_title(const char *arg_id,
										 const char *arg_title);
static bool switch_scratchpad_client_state(Client *c);
static bool check_trackpad_disabled(struct wlr_pointer *pointer);
static uint32_t get_tag_status(uint32_t tag, Monitor *m);
static void enable_adaptive_sync(Monitor *m, struct wlr_output_state *state);
static Client *get_next_stack_client(Client *c, bool reverse);
static void set_float_malposition(Client *tc);
static void set_size_per(Monitor *m, Client *c);
static void resize_tile_client(Client *grabc, bool isdrag, int32_t offsetx,
							   int32_t offsety, uint32_t time);
static void refresh_monitors_workspaces_status(Monitor *m);
static void init_client_properties(Client *c);
static float *get_border_color(Client *c);
static void clear_fullscreen_and_maximized_state(Monitor *m);
static void request_fresh_all_monitors(void);
static Client *find_client_by_direction(Client *tc, const Arg *arg,
										bool findfloating, bool ignore_align);
static void exit_scroller_stack(Client *c);
static Client *scroll_get_stack_head_client(Client *c);
static bool client_only_in_one_tag(Client *c);
static Client *get_focused_stack_client(Client *sc,
										Client *custom_focus_client);
static bool client_is_in_same_stack(Client *sc, Client *tc, Client *fc);
static void monitor_stop_skip_frame_timer(Monitor *m);
static int monitor_skip_frame_timeout_callback(void *data);
static Monitor *get_monitor_nearest_to(int32_t lx, int32_t ly);
static bool match_monitor_spec(char *spec, Monitor *m);
static void last_cursor_surface_destroy(struct wl_listener *listener,
										void *data);
static int32_t keep_idle_inhibit(void *data);
static void check_keep_idle_inhibit(Client *c);
static void pre_caculate_before_arrange(Monitor *m, bool want_animation,
										bool from_view, bool only_caculate);
static void client_pending_fullscreen_state(Client *c, int32_t isfullscreen);
static void client_pending_maximized_state(Client *c, int32_t ismaximized);
static void client_pending_minimized_state(Client *c, int32_t isminimized);
static void scroller_insert_stack(Client *c, Client *target_client,
								  bool insert_before);
static void dwindle_move_client(DwindleNode **root, Client *c, Client *target,
								float ratio, int32_t dir);
static void dwindle_resize_client_step(Monitor *m, Client *c, int32_t dx,
									   int32_t dy);
static void dwindle_resize_client(Monitor *m, Client *c);

static struct TagScrollerState *ensure_scroller_state(Monitor *m, uint32_t tag);
static struct ScrollerStackNode *find_scroller_node(struct TagScrollerState *st,
													Client *c);
static void sync_scroller_state_to_clients(Monitor *m, uint32_t tag);
static void scroller_node_remove(struct TagScrollerState *st,
								 struct ScrollerStackNode *target);
static struct ScrollerStackNode *
scroller_node_create(struct TagScrollerState *st, Client *c);
static void update_scroller_state(Monitor *m);
Client *scroll_get_stack_tail_client(Client *c);
static DwindleNode *dwindle_find_leaf(DwindleNode *node, Client *c);
static void overview_backup_surface(Client *c);

#include "data/static_keymap.h"
#include "dispatch/bind_declare.h"
#include "layout/layout.h"

/* variables */
static const char broken[] = "broken";
static pid_t child_pid = -1;
static int32_t locked;
static uint32_t locked_mods = 0;
static void *exclusive_focus;
static struct wl_display *dpy;
static struct wl_event_loop *event_loop;
static struct wlr_backend *backend;
static struct wlr_backend *headless_backend;
static struct wlr_scene *scene;
static struct wlr_scene_tree *layers[NUM_LAYERS];
static struct wlr_renderer *drw;
static struct wlr_allocator *alloc;
static struct wlr_compositor *compositor;

static struct wlr_xdg_shell *xdg_shell;
static struct wlr_xdg_activation_v1 *activation;
static struct wlr_xdg_decoration_manager_v1 *xdg_decoration_mgr;
static struct wl_list clients; /* tiling order */
static struct wl_list fstack;  /* focus order */
static struct wl_list fadeout_clients;
static struct wl_list fadeout_layers;
static struct wlr_idle_notifier_v1 *idle_notifier;
static struct wlr_idle_inhibit_manager_v1 *idle_inhibit_mgr;
static struct wlr_layer_shell_v1 *layer_shell;
static struct wlr_output_manager_v1 *output_mgr;
static struct wlr_virtual_keyboard_manager_v1 *virtual_keyboard_mgr;
static struct wlr_keyboard_shortcuts_inhibit_manager_v1
	*keyboard_shortcuts_inhibit;
static struct wlr_virtual_pointer_manager_v1 *virtual_pointer_mgr;
static struct wlr_output_power_manager_v1 *power_mgr;
static struct wlr_pointer_gestures_v1 *pointer_gestures;
static struct wlr_drm_lease_v1_manager *drm_lease_manager;
struct mango_print_status_manager *print_status_manager;

static struct wlr_cursor *cursor;
static struct wlr_xcursor_manager *cursor_mgr;
static struct wlr_session *session;

static struct wlr_scene_rect *root_bg;
static struct wlr_session_lock_manager_v1 *session_lock_mgr;
static struct wlr_scene_rect *locked_bg;
static struct wlr_session_lock_v1 *cur_lock;
static const int32_t layermap[] = {LyrBg, LyrBottom, LyrTop, LyrOverlay};
static struct wlr_scene_tree *drag_icon;
static struct wlr_cursor_shape_manager_v1 *cursor_shape_mgr;
static struct wlr_pointer_constraints_v1 *pointer_constraints;
static struct wlr_relative_pointer_manager_v1 *relative_pointer_mgr;
static struct wlr_pointer_constraint_v1 *active_constraint;

static struct wlr_seat *seat;
static KeyboardGroup *kb_group;
static struct wl_list inputdevices;
static struct wl_list keyboard_shortcut_inhibitors;
static uint32_t cursor_mode;
static Client *grabc, *dropc;
static int32_t rzcorner;
static int32_t grabcx, grabcy;						   /* client-relative */
static int32_t drag_begin_cursorx, drag_begin_cursory; /* client-relative */
static bool start_drag_window = false;
static int32_t last_apply_drap_time = 0;

static struct wlr_output_layout *output_layout;
static struct wlr_box sgeom;
static struct wl_list mons;
static Monitor *selmon;

static int32_t enablegaps = 1; /* enables gaps, used by togglegaps */
static int32_t axis_apply_time = 0;
static int32_t axis_apply_dir = 0;
static int32_t scroller_focus_lock = 0;

static uint32_t swipe_fingers = 0;
static double swipe_dx = 0;
static double swipe_dy = 0;

bool render_border = true;

uint32_t chvt_backup_tag = 0;
bool allow_frame_scheduling = true;
char chvt_backup_selmon[32] = {0};

struct dvec2 *baked_points_move;
struct dvec2 *baked_points_open;
struct dvec2 *baked_points_tag;
struct dvec2 *baked_points_close;
struct dvec2 *baked_points_focus;
struct dvec2 *baked_points_opafadein;
struct dvec2 *baked_points_opafadeout;

static struct wl_event_source *hide_cursor_source;
static struct wl_event_source *keep_idle_inhibit_source;
static bool cursor_hidden = false;
static bool tag_combo = false;
static const char *cli_config_path = NULL;
static bool cli_debug_log = false;
static KeyMode keymode = {
	.mode = {'d', 'e', 'f', 'a', 'u', 'l', 't', '\0'},
	.isdefault = true,
};

static char *env_vars[] = {"DISPLAY",
						   "WAYLAND_DISPLAY",
						   "XDG_CURRENT_DESKTOP",
						   "XDG_SESSION_TYPE",
						   "XCURSOR_THEME",
						   "XCURSOR_SIZE",
						   "MANGO_INSTANCE_SIGNATURE",
						   NULL};
static struct {
	enum wp_cursor_shape_device_v1_shape shape;
	struct wlr_surface *surface;
	int32_t hotspot_x;
	int32_t hotspot_y;
} last_cursor;

#include "client/client.h"
#include "config/preset.h"
struct Pertag {
	uint32_t curtag, prevtag;
	int32_t nmasters[LENGTH(tags) + 1];
	float mfacts[LENGTH(tags) + 1];
	int32_t no_hide[LENGTH(tags) + 1];
	int32_t no_render_border[LENGTH(tags) + 1];
	int32_t open_as_floating[LENGTH(tags) + 1];
	float scroller_default_proportion[LENGTH(tags) + 1];
	float scroller_default_proportion_single[LENGTH(tags) + 1];
	int32_t scroller_ignore_proportion_single[LENGTH(tags) + 1];
	struct DwindleNode *dwindle_root[LENGTH(tags) + 1];
	const Layout *ltidxs[LENGTH(tags) + 1];
	struct TagScrollerState *scroller_state[LENGTH(tags) + 1];
};
#include "config/parse_config.h"

static struct wl_signal mango_print_status;

static struct wl_listener print_status_listener = {.notify =
													   handle_print_status};
static struct wl_listener cursor_axis = {.notify = axisnotify};
static struct wl_listener cursor_button = {.notify = buttonpress};
static struct wl_listener cursor_frame = {.notify = cursorframe};
static struct wl_listener cursor_motion = {.notify = motionrelative};
static struct wl_listener cursor_motion_absolute = {.notify = motionabsolute};
static struct wl_listener gpu_reset = {.notify = gpureset};
static struct wl_listener layout_change = {.notify = updatemons};
static struct wl_listener new_idle_inhibitor = {.notify = createidleinhibitor};
static struct wl_listener new_input_device = {.notify = inputdevice};
static struct wl_listener new_virtual_keyboard = {.notify = virtualkeyboard};
static struct wl_listener new_virtual_pointer = {.notify = virtualpointer};
static struct wl_listener new_pointer_constraint = {
	.notify = createpointerconstraint};
static struct wl_listener new_output = {.notify = createmon};
static struct wl_listener new_xdg_toplevel = {.notify = createnotify};
static struct wl_listener new_xdg_popup = {.notify = createpopup};
static struct wl_listener new_xdg_decoration = {.notify = createdecoration};
static struct wl_listener new_layer_surface = {.notify = createlayersurface};
static struct wl_listener output_mgr_apply = {.notify = outputmgrapply};
static struct wl_listener output_mgr_test = {.notify = outputmgrtest};
static struct wl_listener output_power_mgr_set_mode = {.notify =
														   powermgrsetmode};
static struct wl_listener request_activate = {.notify = urgent};
static struct wl_listener request_cursor = {.notify = setcursor};
static struct wl_listener request_set_psel = {.notify = setpsel};
static struct wl_listener request_set_sel = {.notify = setsel};
static struct wl_listener request_set_cursor_shape = {.notify = setcursorshape};
static struct wl_listener request_start_drag = {.notify = requeststartdrag};
static struct wl_listener start_drag = {.notify = startdrag};
static struct wl_listener new_session_lock = {.notify = locksession};
static struct wl_listener drm_lease_request = {.notify = requestdrmlease};
static struct wl_listener keyboard_shortcuts_inhibit_new_inhibitor = {
	.notify = handle_keyboard_shortcuts_inhibit_new_inhibitor};
static struct wl_listener last_cursor_surface_destroy_listener = {
	.notify = last_cursor_surface_destroy};

#ifdef XWAYLAND
static void fix_xwayland_coordinate(struct wlr_box *geom);
static int32_t synckeymap(void *data);
static void activatex11(struct wl_listener *listener, void *data);
static void configurex11(struct wl_listener *listener, void *data);
static void createnotifyx11(struct wl_listener *listener, void *data);
static void dissociatex11(struct wl_listener *listener, void *data);
static void commitx11(struct wl_listener *listener, void *data);
static void associatex11(struct wl_listener *listener, void *data);
static void sethints(struct wl_listener *listener, void *data);
static void xwaylandready(struct wl_listener *listener, void *data);
static void setgeometrynotify(struct wl_listener *listener, void *data);
static struct wl_listener new_xwayland_surface = {.notify = createnotifyx11};
static struct wl_listener xwayland_ready = {.notify = xwaylandready};
static struct wlr_xwayland *xwayland;
static struct wl_event_source *sync_keymap;
#endif

#include "action/client.h"
#include "animation/client.h"
#include "animation/common.h"
#include "animation/layer.h"
#include "animation/tag.h"
#include "dispatch/bind_define.h"
#include "ext-protocol/all.h"
#include "fetch/fetch.h"
#include "ipc/ipc.h"
#include "layout/arrange.h"
#include "layout/dwindle.h"
#include "layout/horizontal.h"
#include "layout/overview.h"
#include "layout/scroll.h"
#include "layout/vertical.h"

void client_change_mon(Client *c, Monitor *m) {
	setmon(c, m, c->tags, true);
	if (c->isfloating) {
		c->float_geom = c->geom =
			setclient_coordinate_center(c, c->mon, c->geom, 0, 0);
	}
}

void applybounds(Client *c, struct wlr_box *bbox) {
	/* set minimum possible */
	c->geom.width = MAX(1 + 2 * (int32_t)c->bw, c->geom.width);
	c->geom.height = MAX(1 + 2 * (int32_t)c->bw, c->geom.height);

	if (c->geom.x >= bbox->x + bbox->width)
		c->geom.x = bbox->x + bbox->width - c->geom.width;
	if (c->geom.y >= bbox->y + bbox->height)
		c->geom.y = bbox->y + bbox->height - c->geom.height;
	if (c->geom.x + c->geom.width <= bbox->x)
		c->geom.x = bbox->x;
	if (c->geom.y + c->geom.height <= bbox->y)
		c->geom.y = bbox->y;
}

void clear_fullscreen_and_maximized_state(Monitor *m) {
	Client *fc = NULL;
	wl_list_for_each(fc, &clients, link) {
		if (fc && VISIBLEON(fc, m) && ISFULLSCREEN(fc)) {
			clear_fullscreen_flag(fc);
		}
	}
}

/*清除全屏标志,还原全屏时清0的border*/
void clear_fullscreen_flag(Client *c) {

	if ((c->mon->pertag->ltidxs[get_tags_first_tag_num(c->tags)]->id ==
			 SCROLLER ||
		 c->mon->pertag->ltidxs[get_tags_first_tag_num(c->tags)]->id ==
			 VERTICAL_SCROLLER) &&
		!c->isfloating) {
		return;
	}

	if (c->isfullscreen) {
		setfullscreen(c, false, true);
	}

	if (c->ismaximizescreen) {
		setmaximizescreen(c, 0, true);
	}
}

void client_pending_fullscreen_state(Client *c, int32_t isfullscreen) {
	c->isfullscreen = isfullscreen;

	if (c->foreign_toplevel && !c->iskilling)
		wlr_foreign_toplevel_handle_v1_set_fullscreen(c->foreign_toplevel,
													  isfullscreen);
}

void client_pending_maximized_state(Client *c, int32_t ismaximized) {
	c->ismaximizescreen = ismaximized;
	if (c->foreign_toplevel && !c->iskilling)
		wlr_foreign_toplevel_handle_v1_set_maximized(c->foreign_toplevel,
													 ismaximized);
}

void client_pending_minimized_state(Client *c, int32_t isminimized) {
	c->isminimized = isminimized;
	if (c->foreign_toplevel && !c->iskilling)
		wlr_foreign_toplevel_handle_v1_set_minimized(c->foreign_toplevel,
													 isminimized);
}

void show_scratchpad(Client *c) {
	c->is_scratchpad_show = 1;
	if (c->isfullscreen || c->ismaximizescreen) {
		client_pending_fullscreen_state(c, 0);
		client_pending_maximized_state(c, 0);
		c->bw = c->isnoborder ? 0 : config.borderpx;
	}

	/* return if fullscreen */
	if (!c->isfloating) {
		setfloating(c, 1);
		c->geom.width = c->iscustomsize
							? c->float_geom.width
							: c->mon->w.width * config.scratchpad_width_ratio;
		c->geom.height =
			c->iscustomsize ? c->float_geom.height
							: c->mon->w.height * config.scratchpad_height_ratio;
		// 重新计算居中的坐标
		c->float_geom = c->geom = c->animainit_geom = c->animation.current =
			setclient_coordinate_center(c, c->mon, c->geom, 0, 0);
		c->iscustomsize = 1;
		resize(c, c->geom, 0);
	}

	c->oldtags = c->mon->tagset[c->mon->seltags];
	wl_list_remove(&c->link);					  // 从原来位置移除
	wl_list_insert(clients.prev->next, &c->link); // 插入开头
	show_hide_client(c);
	setborder_color(c);
}

void client_update_oldmonname_record(Client *c, Monitor *m) {
	if (!c || c->iskilling || !client_surface(c)->mapped)
		return;
	memset(c->oldmonname, 0, sizeof(c->oldmonname));
	strncpy(c->oldmonname, m->wlr_output->name, sizeof(c->oldmonname) - 1);
	c->oldmonname[sizeof(c->oldmonname) - 1] = '\0';
}

void swallow(Client *c, Client *w) {
	c->bw = w->bw;
	c->isfloating = w->isfloating;
	c->isurgent = w->isurgent;
	c->is_in_scratchpad = w->is_in_scratchpad;
	c->is_scratchpad_show = w->is_scratchpad_show;
	c->tags = w->tags;
	c->geom = w->geom;
	c->float_geom = w->float_geom;
	c->stack_inner_per = w->stack_inner_per;
	c->master_inner_per = w->master_inner_per;
	c->master_mfact_per = w->master_mfact_per;
	c->scroller_proportion = w->scroller_proportion;
	c->isglobal = w->isglobal;
	c->overview_backup_geom = w->overview_backup_geom;

	/* 调整 w 的邻居指针，让它们指向 c */
	c->stack_proportion = w->stack_proportion;

	if (w->overview_scene_surface) {
		wlr_scene_node_destroy(&w->scene_surface->node);
		w->scene_surface = w->overview_scene_surface;
		w->overview_scene_surface = NULL;
	}

	if (c->mon && c->mon->isoverview && config.ov_no_resize) {
		overview_backup_surface(c);
	}

	/* 全局链表替换 */
	wl_list_insert(&w->link, &c->link);
	wl_list_insert(&w->flink, &c->flink);

	if (w->foreign_toplevel) {
		wlr_foreign_toplevel_handle_v1_output_leave(w->foreign_toplevel,
													w->mon->wlr_output);
		wlr_foreign_toplevel_handle_v1_destroy(w->foreign_toplevel);
		w->foreign_toplevel = NULL;
	}

	wlr_scene_node_set_enabled(&w->scene->node, false);
	wlr_scene_node_set_enabled(&c->scene->node, true);
	wlr_scene_node_set_enabled(&c->scene_surface->node, true);

	if (!c->foreign_toplevel && c->mon)
		add_foreign_toplevel(c);
	else if (c->foreign_toplevel && c->mon) {
		wlr_foreign_toplevel_handle_v1_output_enter(c->foreign_toplevel,
													c->mon->wlr_output);
	}

	client_pending_fullscreen_state(c, w->isfullscreen);
	client_pending_maximized_state(c, w->ismaximizescreen);
	client_pending_minimized_state(c, w->isminimized);

	if (!w->mon)
		return;

	const Layout *layout = w->mon->pertag->ltidxs[w->mon->pertag->curtag];

	if (layout->id == DWINDLE || layout->id == SCROLLER ||
		layout->id == VERTICAL_SCROLLER) {

		for (uint32_t t = 0; t < LENGTH(tags) + 1; t++) {
			/* dwindle */

			if (layout->id == DWINDLE) {

				DwindleNode **root = &w->mon->pertag->dwindle_root[t];
				dwindle_remove(root, c);
				DwindleNode *dnode = dwindle_find_leaf(*root, w);
				if (dnode)
					dnode->client = c;
			}

			// scroller
			if (layout->id == SCROLLER || layout->id == VERTICAL_SCROLLER) {
				struct TagScrollerState *st = w->mon->pertag->scroller_state[t];
				if (!st)
					continue;
				/* 先移除 c 在任意 tag 中的旧节点 */
				struct ScrollerStackNode *cn = find_scroller_node(st, c);
				if (cn)
					scroller_node_remove(st, cn);

				/* 将 w 的节点（如果存在）转给 c */
				struct ScrollerStackNode *wn = find_scroller_node(st, w);
				if (wn)
					wn->client = c;
			}
		}
	}

	/* 同步当前活动 tag 的全局客户端字段 */
	if (layout->id == SCROLLER || layout->id == VERTICAL_SCROLLER) {
		sync_scroller_state_to_clients(w->mon, w->mon->pertag->curtag);
	}
}

bool switch_scratchpad_client_state(Client *c) {

	if (config.scratchpad_cross_monitor && selmon && c->mon != selmon &&
		c->is_in_scratchpad) {
		// 保存原始monitor用于尺寸计算
		Monitor *oldmon = c->mon;
		c->scratchpad_switching_mon = true;
		c->mon = selmon;
		reset_foreign_tolevel(c, oldmon, c->mon);
		client_update_oldmonname_record(c, selmon);

		// 根据新monitor调整窗口尺寸
		c->float_geom.width =
			(int32_t)(c->float_geom.width * c->mon->w.width / oldmon->w.width);
		c->float_geom.height = (int32_t)(c->float_geom.height *
										 c->mon->w.height / oldmon->w.height);

		c->float_geom =
			setclient_coordinate_center(c, c->mon, c->float_geom, 0, 0);

		// 只有显示状态的scratchpad才需要聚焦和返回true
		if (c->is_scratchpad_show) {
			c->tags = get_tags_first_tag(selmon->tagset[selmon->seltags]);
			resize(c, c->float_geom, 0);
			arrange(selmon, false, false);
			focusclient(c, true);
			c->scratchpad_switching_mon = false;
			return true;
		} else {
			resize(c, c->float_geom, 0);
			c->scratchpad_switching_mon = false;
		}
	}

	if (c->is_in_scratchpad && c->is_scratchpad_show &&
		(c->mon->tagset[c->mon->seltags] & c->tags) == 0) {
		c->tags = c->mon->tagset[c->mon->seltags];
		arrange(c->mon, false, false);
		focusclient(c, true);
		return true;
	} else if (c->is_in_scratchpad && c->is_scratchpad_show &&
			   (c->mon->tagset[c->mon->seltags] & c->tags) != 0) {
		set_minimized(c);
		return true;
	} else if (c && c->is_in_scratchpad && !c->is_scratchpad_show) {
		show_scratchpad(c);
		return true;
	}

	return false;
}

void apply_named_scratchpad(Client *target_client) {
	Client *c = NULL;
	wl_list_for_each(c, &clients, link) {

		if (!config.scratchpad_cross_monitor && c->mon != selmon) {
			continue;
		}

		if (config.single_scratchpad && c->is_in_scratchpad &&
			c->is_scratchpad_show && c != target_client) {
			set_minimized(c);
		}
	}

	if (!target_client->is_in_scratchpad) {
		set_minimized(target_client);
		switch_scratchpad_client_state(target_client);
	} else
		switch_scratchpad_client_state(target_client);
}

void gpureset(struct wl_listener *listener, void *data) {
	struct wlr_renderer *old_drw = drw;
	struct wlr_allocator *old_alloc = alloc;
	struct Monitor *m = NULL;

	wlr_log(WLR_DEBUG, "gpu reset");

	if (!(drw = fx_renderer_create(backend)))
		die("couldn't recreate renderer");

	if (!(alloc = wlr_allocator_autocreate(backend, drw)))
		die("couldn't recreate allocator");

	wl_list_remove(&gpu_reset.link);
	wl_signal_add(&drw->events.lost, &gpu_reset);

	wlr_compositor_set_renderer(compositor, drw);

	wl_list_for_each(m, &mons, link) {
		wlr_output_init_render(m->wlr_output, alloc, drw);
	}

	wlr_allocator_destroy(old_alloc);
	wlr_renderer_destroy(old_drw);
}

void handlesig(int32_t signo) {
	if (signo == SIGCHLD)
		while (waitpid(-1, NULL, WNOHANG) > 0)
			;
	else if (signo == SIGINT || signo == SIGTERM)
		quit(NULL);
}

void toggle_hotarea(int32_t x_root, int32_t y_root) {
	// 左下角热区坐标计算,兼容多显示屏
	Arg arg = {0};

	// 在刚启动的时候,selmon为NULL,但鼠标可能已经处于热区,
	// 必须判断避免奔溃
	if (!selmon)
		return;

	if (grabc)
		return;

	// 根据热角位置计算不同的热区坐标
	unsigned hx, hy;

	switch (config.hotarea_corner) {
	case BOTTOM_RIGHT: // 右下角
		hx = selmon->m.x + selmon->m.width - config.hotarea_size;
		hy = selmon->m.y + selmon->m.height - config.hotarea_size;
		break;
	case TOP_LEFT: // 左上角
		hx = selmon->m.x + config.hotarea_size;
		hy = selmon->m.y + config.hotarea_size;
		break;
	case TOP_RIGHT: // 右上角
		hx = selmon->m.x + selmon->m.width - config.hotarea_size;
		hy = selmon->m.y + config.hotarea_size;
		break;
	case BOTTOM_LEFT: // 左下角（默认）
	default:
		hx = selmon->m.x + config.hotarea_size;
		hy = selmon->m.y + selmon->m.height - config.hotarea_size;
		break;
	}

	// 判断鼠标是否在热区内
	int in_hotarea = 0;

	switch (config.hotarea_corner) {
	case BOTTOM_RIGHT: // 右下角
		in_hotarea = (y_root > hy && x_root > hx &&
					  x_root <= (selmon->m.x + selmon->m.width) &&
					  y_root <= (selmon->m.y + selmon->m.height));
		break;
	case TOP_LEFT: // 左上角
		in_hotarea = (y_root < hy && x_root < hx && x_root >= selmon->m.x &&
					  y_root >= selmon->m.y);
		break;
	case TOP_RIGHT: // 右上角
		in_hotarea = (y_root < hy && x_root > hx &&
					  x_root <= (selmon->m.x + selmon->m.width) &&
					  y_root >= selmon->m.y);
		break;
	case BOTTOM_LEFT: // 左下角（默认）
	default:
		in_hotarea = (y_root > hy && x_root < hx && x_root >= selmon->m.x &&
					  y_root <= (selmon->m.y + selmon->m.height));
		break;
	}

	if (config.enable_hotarea == 1 && selmon->is_in_hotarea == 0 &&
		in_hotarea) {
		toggleoverview(&arg);
		selmon->is_in_hotarea = 1;
	} else if (config.enable_hotarea == 1 && selmon->is_in_hotarea == 1 &&
			   !in_hotarea) {
		selmon->is_in_hotarea = 0;
	}
}

static void apply_rule_properties(Client *c, const ConfigWinRule *r) {
	APPLY_INT_PROP(c, r, isterm);
	APPLY_INT_PROP(c, r, allow_csd);
	APPLY_INT_PROP(c, r, force_fakemaximize);
	APPLY_INT_PROP(c, r, force_tiled_state);
	APPLY_INT_PROP(c, r, force_tearing);
	APPLY_INT_PROP(c, r, noswallow);
	APPLY_INT_PROP(c, r, nofocus);
	APPLY_INT_PROP(c, r, nofadein);
	APPLY_INT_PROP(c, r, nofadeout);
	APPLY_INT_PROP(c, r, no_force_center);
	APPLY_INT_PROP(c, r, isfloating);
	APPLY_INT_PROP(c, r, isfullscreen);
	APPLY_INT_PROP(c, r, isfakefullscreen);
	APPLY_INT_PROP(c, r, isnoborder);
	APPLY_INT_PROP(c, r, isnoshadow);
	APPLY_INT_PROP(c, r, isnoradius);
	APPLY_INT_PROP(c, r, isnoanimation);
	APPLY_INT_PROP(c, r, isopensilent);
	APPLY_INT_PROP(c, r, istagsilent);
	APPLY_INT_PROP(c, r, isnamedscratchpad);
	APPLY_INT_PROP(c, r, isglobal);
	APPLY_INT_PROP(c, r, isoverlay);
	APPLY_INT_PROP(c, r, ignore_maximize);
	APPLY_INT_PROP(c, r, ignore_minimize);
	APPLY_INT_PROP(c, r, isnosizehint);
	APPLY_INT_PROP(c, r, idleinhibit_when_focus);
	APPLY_INT_PROP(c, r, isunglobal);
	APPLY_INT_PROP(c, r, noblur);
	APPLY_INT_PROP(c, r, allow_shortcuts_inhibit);

	APPLY_FLOAT_PROP(c, r, scroller_proportion);
	APPLY_FLOAT_PROP(c, r, scroller_proportion_single);
	APPLY_FLOAT_PROP(c, r, focused_opacity);
	APPLY_FLOAT_PROP(c, r, unfocused_opacity);

	APPLY_STRING_PROP(c, r, animation_type_open);
	APPLY_STRING_PROP(c, r, animation_type_close);
}

void set_float_malposition(Client *tc) {
	Client *c = NULL;
	int32_t x, y, offset, xreverse, yreverse;
	x = tc->geom.x;
	y = tc->geom.y;
	xreverse = 1;
	yreverse = 1;
	offset = MIN(tc->mon->w.width / 20, tc->mon->w.height / 20);

	wl_list_for_each(c, &clients, link) {
		if (c->isfloating && c != tc && VISIBLEON(c, tc->mon) &&
			abs(x - c->geom.x) < offset && abs(y - c->geom.y) < offset) {

			x = c->geom.x + offset * xreverse;
			y = c->geom.y + offset * yreverse;
			if (x < tc->mon->w.x) {
				x = x + offset;
				xreverse = 1;
			}

			if (y < tc->mon->w.y) {
				y = y + offset;
				yreverse = 1;
			}

			if (x + tc->geom.width > tc->mon->w.x + tc->mon->w.width) {
				x = x - offset;
				xreverse = -1;
			}

			if (y + tc->geom.height > tc->mon->w.y + tc->mon->w.height) {
				y = y - offset;
				yreverse = -1;
			}
		}
	}

	tc->float_geom.x = tc->geom.x = x;
	tc->float_geom.y = tc->geom.y = y;
}

void client_reset_mon_tags(Client *c, Monitor *mon, uint32_t newtags) {
	if (!newtags && mon && !mon->isoverview) {
		c->tags = mon->tagset[mon->seltags];
	} else if (!newtags && mon && mon->isoverview) {
		c->tags = mon->ovbk_current_tagset;
	} else if (newtags) {
		c->tags = newtags;
	} else {
		c->tags = mon->tagset[mon->seltags];
	}
}

void check_match_tag_floating_rule(Client *c, Monitor *mon) {
	if (c->tags && !c->isfloating && mon && !c->swallowedby &&
		mon->pertag->open_as_floating[get_tags_first_tag_num(c->tags)]) {
		c->isfloating = 1;
	}
}

void applyrules(Client *c) {
	/* rule matching */
	const char *appid, *title;
	uint32_t i, newtags = 0;
	const ConfigWinRule *r;
	Monitor *m = NULL;
	Client *fc = NULL;
	Client *parent = NULL;

	if (!c)
		return;

	parent = client_get_parent(c);

	Monitor *mon = parent && parent->mon ? parent->mon : selmon;

	c->isfloating = client_is_float_type(c) || parent;

#ifdef XWAYLAND
	if (c->isfloating && client_is_x11(c)) {
		fix_xwayland_coordinate(&c->geom);
		c->float_geom = c->geom;
	}
#endif

	if (!(appid = client_get_appid(c)))
		appid = broken;
	if (!(title = client_get_title(c)))
		title = broken;

	for (i = 0; i < config.window_rules_count; i++) {

		r = &config.window_rules[i];

		// rule matching
		if (!is_window_rule_matches(r, appid, title))
			continue;

		// set general properties
		apply_rule_properties(c, r);

		// // set tags
		if (r->tags > 0) {
			newtags |= r->tags;
		} else if (parent) {
			newtags = parent->tags;
		}

		// set monitor of client
		wl_list_for_each(m, &mons, link) {
			if (match_monitor_spec(r->monitor, m)) {
				mon = m;
			}
		}

		if (c->isnamedscratchpad) {
			c->isfloating = 1;
		}

		// set geometry of floating client

		if (r->width > 1)
			c->float_geom.width = r->width;
		else if (r->width > 0 && r->width <= 1)
			c->float_geom.width = round(mon->m.width * r->width);
		if (r->height > 1)
			c->float_geom.height = r->height;
		else if (r->height > 0 && r->height <= 1)
			c->float_geom.height = round(mon->m.height * r->height);

		if (r->width > 0 || r->height > 0) {
			c->iscustomsize = 1;
		}

		if (r->offsetx || r->offsety) {
			c->iscustompos = 1;
			c->float_geom = c->geom = setclient_coordinate_center(
				c, mon, c->float_geom, r->offsetx, r->offsety);
		}
		if (c->isfloating) {
			c->geom = c->float_geom.width > 0 && c->float_geom.height > 0
						  ? c->float_geom
						  : c->geom;
			if (!c->isnosizehint)
				client_set_size_bound(c);
		}
	}

	if (mon)
		set_size_per(mon, c);

	// if no geom rule hit and is normal winodw, use the center pos and record
	// the hit size
	if (!c->iscustompos &&
		(!client_is_x11(c) || (c->geom.x == 0 && c->geom.y == 0))) {
		c->float_geom = c->geom =
			setclient_coordinate_center(c, mon, c->geom, 0, 0);
	} else {
		c->float_geom = c->geom;
	}

	/*-----------------------apply rule action-------------------------*/

	// rule action only apply after map not apply in the init commit
	struct wlr_surface *surface = client_surface(c);
	if (!surface || !surface->mapped)
		return;

	// apply swallow rule
	c->pid = client_get_pid(c);
	if (!c->noswallow && !c->isfloating && !client_is_float_type(c) &&
		!c->surface.xdg->initial_commit) {
		Client *p = termforwin(c);
		if (p && !p->isminimized) {
			c->swallowedby = p;
			p->swallowing = c;
			wl_list_remove(&c->link);
			wl_list_remove(&c->flink);
			swallow(c, p);
			wl_list_remove(&p->link);
			wl_list_remove(&p->flink);
			mon = p->mon;
			newtags = p->tags;
		}
	}

	int32_t fullscreen_state_backup =
		c->isfullscreen || client_wants_fullscreen(c);

	bool should_init_get_focus =
		!c->isopensilent &&
		!(client_is_x11_popup(c) && client_should_ignore_focus(c)) && mon &&
		(!c->istagsilent || !newtags || newtags & mon->tagset[mon->seltags]);

	if (!should_init_get_focus) {
		wl_list_remove(&c->flink);
		wl_list_insert(fstack.prev, &c->flink);
	}

	setmon(c, mon, newtags, should_init_get_focus);

	if (!c->isfloating) {
		c->old_stack_inner_per = c->stack_inner_per;
		c->old_master_inner_per = c->master_inner_per;
	}

	if (c->mon &&
		!(c->mon == selmon && c->tags & c->mon->tagset[c->mon->seltags]) &&
		!c->isopensilent && !c->istagsilent) {
		c->animation.tag_from_rule = true;
		view_in_mon(&(Arg){.ui = c->tags}, true, c->mon, true);
	}

	setfullscreen(c, fullscreen_state_backup, true);

	if (c->isfakefullscreen) {
		setfakefullscreen(c, 1);
	}

	/*
	if there is a new non-floating window in the current tag, the fullscreen
	window in the current tag will exit fullscreen and participate in tiling
	*/
	wl_list_for_each(fc, &clients,
					 link) if (fc && fc != c && c->tags & fc->tags && c->mon &&
							   VISIBLEON(fc, c->mon) && ISFULLSCREEN(fc) &&
							   !c->isfloating) {
		clear_fullscreen_flag(fc);
		arrange(c->mon, false, false);
	}

	if (c->isfloating && !c->iscustompos && !c->isnamedscratchpad) {
		wl_list_remove(&c->link);
		wl_list_insert(clients.prev, &c->link);
		set_float_malposition(c);
	}

	// apply named scratchpad rule
	if (c->isnamedscratchpad) {
		apply_named_scratchpad(c);
	}

	// apply overlay rule
	if (c->isoverlay && c->scene) {
		wlr_scene_node_reparent(&c->scene->node, layers[LyrOverlay]);
		wlr_scene_node_raise_to_top(&c->scene->node);
	}
}

void arrangelayer(Monitor *m, struct wl_list *list, struct wlr_box *usable_area,
				  int32_t exclusive) {
	LayerSurface *l = NULL;
	struct wlr_box full_area = m->m;

	wl_list_for_each(l, list, link) {
		struct wlr_layer_surface_v1 *layer_surface = l->layer_surface;

		if (exclusive != (layer_surface->current.exclusive_zone > 0) ||
			!layer_surface->initialized)
			continue;

		if (l->being_unmapped)
			continue;

		wlr_scene_layer_surface_v1_configure(l->scene_layer, &full_area,
											 usable_area);
		wlr_scene_node_set_position(&l->popups->node, l->scene->node.x,
									l->scene->node.y);
	}
}

void apply_window_snap(Client *c) {
	int32_t snap_up = 99999, snap_down = 99999, snap_left = 99999,
			snap_right = 99999;
	int32_t snap_up_temp = 0, snap_down_temp = 0, snap_left_temp = 0,
			snap_right_temp = 0;
	int32_t snap_up_screen = 0, snap_down_screen = 0, snap_left_screen = 0,
			snap_right_screen = 0;
	int32_t snap_up_mon = 0, snap_down_mon = 0, snap_left_mon = 0,
			snap_right_mon = 0;

	uint32_t cbw = !render_border || c->fake_no_border ? config.borderpx : 0;
	uint32_t tcbw;
	uint32_t cx, cy, cw, ch, tcx, tcy, tcw, tch;
	cx = c->geom.x + cbw;
	cy = c->geom.y + cbw;
	cw = c->geom.width - 2 * cbw;
	ch = c->geom.height - 2 * cbw;

	Client *tc = NULL;
	if (!c || !c->mon || !client_surface(c)->mapped || c->iskilling)
		return;

	if (!c->isfloating || !config.enable_floating_snap)
		return;

	wl_list_for_each(tc, &clients, link) {
		if (tc && tc->isfloating && !tc->iskilling &&
			client_surface(tc)->mapped && VISIBLEON(tc, c->mon)) {

			tcbw = !render_border || tc->fake_no_border ? config.borderpx : 0;
			tcx = tc->geom.x + tcbw;
			tcy = tc->geom.y + tcbw;
			tcw = tc->geom.width - 2 * tcbw;
			tch = tc->geom.height - 2 * tcbw;

			snap_left_temp = cx - tcx - tcw;
			snap_right_temp = tcx - cx - cw;
			snap_up_temp = cy - tcy - tch;
			snap_down_temp = tcy - cy - ch;

			if (snap_left_temp < snap_left && snap_left_temp >= 0) {
				snap_left = snap_left_temp;
			}
			if (snap_right_temp < snap_right && snap_right_temp >= 0) {
				snap_right = snap_right_temp;
			}
			if (snap_up_temp < snap_up && snap_up_temp >= 0) {
				snap_up = snap_up_temp;
			}
			if (snap_down_temp < snap_down && snap_down_temp >= 0) {
				snap_down = snap_down_temp;
			}
		}
	}

	snap_left_mon = cx - c->mon->m.x;
	snap_right_mon = c->mon->m.x + c->mon->m.width - cx - cw;
	snap_up_mon = cy - c->mon->m.y;
	snap_down_mon = c->mon->m.y + c->mon->m.height - cy - ch;

	if (snap_up_mon >= 0 && snap_up_mon < snap_up)
		snap_up = snap_up_mon;
	if (snap_down_mon >= 0 && snap_down_mon < snap_down)
		snap_down = snap_down_mon;
	if (snap_left_mon >= 0 && snap_left_mon < snap_left)
		snap_left = snap_left_mon;
	if (snap_right_mon >= 0 && snap_right_mon < snap_right)
		snap_right = snap_right_mon;

	snap_left_screen = cx - c->mon->w.x;
	snap_right_screen = c->mon->w.x + c->mon->w.width - cx - cw;
	snap_up_screen = cy - c->mon->w.y;
	snap_down_screen = c->mon->w.y + c->mon->w.height - cy - ch;

	if (snap_up_screen >= 0 && snap_up_screen < snap_up)
		snap_up = snap_up_screen;
	if (snap_down_screen >= 0 && snap_down_screen < snap_down)
		snap_down = snap_down_screen;
	if (snap_left_screen >= 0 && snap_left_screen < snap_left)
		snap_left = snap_left_screen;
	if (snap_right_screen >= 0 && snap_right_screen < snap_right)
		snap_right = snap_right_screen;

	if (snap_left < snap_right && snap_left < config.snap_distance) {
		c->geom.x = c->geom.x - snap_left;
	}

	if (snap_right <= snap_left && snap_right < config.snap_distance) {
		c->geom.x = c->geom.x + snap_right;
	}

	if (snap_up < snap_down && snap_up < config.snap_distance) {
		c->geom.y = c->geom.y - snap_up;
	}

	if (snap_down <= snap_up && snap_down < config.snap_distance) {
		c->geom.y = c->geom.y + snap_down;
	}

	c->float_geom = c->geom;
	resize(c, c->geom, 0);
}

void focuslayer(LayerSurface *l) {
	focusclient(NULL, 0);
	dwl_im_relay_set_focus(dwl_input_method_relay, l->layer_surface->surface);
	client_notify_enter(l->layer_surface->surface, wlr_seat_get_keyboard(seat));
}

void reset_exclusive_layers_focus(Monitor *m) {
	LayerSurface *l = NULL;
	int32_t i;
	bool neet_change_focus_to_client = false;
	uint32_t layers_above_shell[] = {
		ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY,
		ZWLR_LAYER_SHELL_V1_LAYER_TOP,
		ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM,
	};

	if (!m)
		return;

	for (i = 0; i < (int32_t)LENGTH(layers_above_shell); i++) {
		wl_list_for_each(l, &m->layers[layers_above_shell[i]], link) {
			if (l == exclusive_focus &&
				l->layer_surface->current.keyboard_interactive !=
					ZWLR_LAYER_SURFACE_V1_KEYBOARD_INTERACTIVITY_EXCLUSIVE) {

				exclusive_focus = NULL;

				neet_change_focus_to_client = true;
			}

			if (l->layer_surface->surface ==
					seat->keyboard_state.focused_surface &&
				l->being_unmapped) {
				neet_change_focus_to_client = true;
			}

			if (l->layer_surface->current.keyboard_interactive ==
					ZWLR_LAYER_SURFACE_V1_KEYBOARD_INTERACTIVITY_NONE &&
				l->layer_surface->surface ==
					seat->keyboard_state.focused_surface) {
				neet_change_focus_to_client = true;
			}

			if (locked ||
				l->layer_surface->current.keyboard_interactive !=
					ZWLR_LAYER_SURFACE_V1_KEYBOARD_INTERACTIVITY_EXCLUSIVE ||
				l->being_unmapped)
				continue;
			/* Deactivate the focused client. */
			exclusive_focus = l;
			neet_change_focus_to_client = false;
			if (l->layer_surface->surface !=
				seat->keyboard_state.focused_surface)
				focuslayer(l);
			return;
		}
	}

	if (neet_change_focus_to_client) {
		focusclient(focustop(selmon), 1);
	}
}

void arrangelayers(Monitor *m) {
	int32_t i;
	struct wlr_box usable_area = m->m;

	if (!m->wlr_output->enabled)
		return;

	if (m->iscleanuping)
		return;

	/* Arrange exclusive surfaces from top->bottom */
	for (i = 3; i >= 0; i--)
		arrangelayer(m, &m->layers[i], &usable_area, 1);

	if (!wlr_box_equal(&usable_area, &m->w)) {
		m->w = usable_area;
		arrange(m, false, false);
	}

	/* Arrange non-exlusive surfaces from top->bottom */
	for (i = 3; i >= 0; i--)
		arrangelayer(m, &m->layers[i], &usable_area, 0);
}

bool pointer_is_trackpad(struct wlr_pointer *pointer) {
	struct libinput_device *device;

	if (wlr_input_device_is_libinput(&pointer->base) &&
		(device = wlr_libinput_get_device_handle(&pointer->base))) {
		if (libinput_device_config_tap_get_finger_count(device) > 0) {
			return true;
		}
	}

	return false;
}

void // 鼠标滚轮事件
axisnotify(struct wl_listener *listener, void *data) {
	/* This event is forwarded by the cursor when a pointer emits an axis event,
	 * for example when you move the scroll wheel. */
	struct wlr_pointer_axis_event *event = data;
	struct wlr_keyboard *keyboard, *hard_keyboard;
	uint32_t mods, hard_mods;
	AxisBinding *a;
	int32_t ji;
	uint32_t adir;
	double target_scroll_factor;
	// IDLE_NOTIFY_ACTIVITY;
	handlecursoractivity();
	wlr_idle_notifier_v1_notify_activity(idle_notifier, seat);

	if (check_trackpad_disabled(event->pointer)) {
		return;
	}

	hard_keyboard = &kb_group->wlr_group->keyboard;
	hard_mods = hard_keyboard ? wlr_keyboard_get_modifiers(hard_keyboard) : 0;

	keyboard = wlr_seat_get_keyboard(seat);
	mods = keyboard ? wlr_keyboard_get_modifiers(keyboard) : 0;

	mods = mods | hard_mods;

	if (event->orientation == WL_POINTER_AXIS_VERTICAL_SCROLL)
		adir = event->delta > 0 ? AxisDown : AxisUp;
	else
		adir = event->delta > 0 ? AxisRight : AxisLeft;

	for (ji = 0; ji < config.axis_bindings_count; ji++) {
		if (config.axis_bindings_count < 1)
			break;
		a = &config.axis_bindings[ji];
		if (CLEANMASK(mods) == CLEANMASK(a->mod) && // 按键一致
			adir == a->dir && a->func) { // 滚轮方向判断一致且处理函数存在
			if (event->time_msec - axis_apply_time >
					config.axis_bind_apply_timeout ||
				axis_apply_dir * event->delta < 0) {
				a->func(&a->arg);
				axis_apply_time = event->time_msec;
				axis_apply_dir = event->delta > 0 ? 1 : -1;
				return; // 如果成功匹配就不把这个滚轮事件传送给客户端了
			} else {
				axis_apply_dir = event->delta > 0 ? 1 : -1;
				axis_apply_time = event->time_msec;
				return;
			}
		}
	}

	/* TODO: allow usage of scroll whell for mousebindings, it can be
	 * implemented checking the event's orientation and the delta of the event
	 */
	/* Notify the client with pointer focus of the axis event. */

	target_scroll_factor = pointer_is_trackpad(event->pointer)
							   ? config.trackpad_scroll_factor
							   : config.axis_scroll_factor;

	wlr_seat_pointer_notify_axis(
		seat, // 滚轮事件发送给客户端也就是窗口
		event->time_msec, event->orientation,
		event->delta * target_scroll_factor,
		roundf(event->delta_discrete * target_scroll_factor), event->source,
		event->relative_direction);
}

int32_t ongesture(struct wlr_pointer_swipe_end_event *event) {
	struct wlr_keyboard *keyboard, *hard_keyboard;
	uint32_t mods, hard_mods;
	const GestureBinding *g;
	uint32_t motion;
	uint32_t adx = (int32_t)round(fabs(swipe_dx));
	uint32_t ady = (int32_t)round(fabs(swipe_dy));
	int32_t handled = 0;
	int32_t ji;

	if (event->cancelled) {
		return handled;
	}

	// Require absolute distance movement beyond a small thresh-hold
	if (adx * adx + ady * ady <
		config.swipe_min_threshold * config.swipe_min_threshold) {
		return handled;
	}

	if (adx > ady) {
		motion = swipe_dx < 0 ? SWIPE_LEFT : SWIPE_RIGHT;
	} else {
		motion = swipe_dy < 0 ? SWIPE_UP : SWIPE_DOWN;
	}

	hard_keyboard = &kb_group->wlr_group->keyboard;
	hard_mods = hard_keyboard ? wlr_keyboard_get_modifiers(hard_keyboard) : 0;

	keyboard = wlr_seat_get_keyboard(seat);
	mods = keyboard ? wlr_keyboard_get_modifiers(keyboard) : 0;

	mods = mods | hard_mods;

	for (ji = 0; ji < config.gesture_bindings_count; ji++) {
		if (config.gesture_bindings_count < 1)
			break;
		g = &config.gesture_bindings[ji];
		if (CLEANMASK(mods) == CLEANMASK(g->mod) &&
			swipe_fingers == g->fingers_count && motion == g->motion &&
			g->func) {
			g->func(&g->arg);
			handled = 1;
		}
	}
	return handled;
}

void swipe_begin(struct wl_listener *listener, void *data) {
	struct wlr_pointer_swipe_begin_event *event = data;

	// Forward swipe begin event to client
	wlr_pointer_gestures_v1_send_swipe_begin(pointer_gestures, seat,
											 event->time_msec, event->fingers);
}

void swipe_update(struct wl_listener *listener, void *data) {
	struct wlr_pointer_swipe_update_event *event = data;

	swipe_fingers = event->fingers;
	// Accumulate swipe distance
	swipe_dx += event->dx;
	swipe_dy += event->dy;

	// Forward swipe update event to client
	wlr_pointer_gestures_v1_send_swipe_update(
		pointer_gestures, seat, event->time_msec, event->dx, event->dy);
}

void swipe_end(struct wl_listener *listener, void *data) {
	struct wlr_pointer_swipe_end_event *event = data;
	ongesture(event);
	swipe_dx = 0;
	swipe_dy = 0;
	// Forward swipe end event to client
	wlr_pointer_gestures_v1_send_swipe_end(pointer_gestures, seat,
										   event->time_msec, event->cancelled);
}

void pinch_begin(struct wl_listener *listener, void *data) {
	struct wlr_pointer_pinch_begin_event *event = data;

	// Forward pinch begin event to client
	wlr_pointer_gestures_v1_send_pinch_begin(pointer_gestures, seat,
											 event->time_msec, event->fingers);
}

void pinch_update(struct wl_listener *listener, void *data) {
	struct wlr_pointer_pinch_update_event *event = data;

	// Forward pinch update event to client
	wlr_pointer_gestures_v1_send_pinch_update(
		pointer_gestures, seat, event->time_msec, event->dx, event->dy,
		event->scale, event->rotation);
}

void pinch_end(struct wl_listener *listener, void *data) {
	struct wlr_pointer_pinch_end_event *event = data;

	// Forward pinch end event to client
	wlr_pointer_gestures_v1_send_pinch_end(pointer_gestures, seat,
										   event->time_msec, event->cancelled);
}

void hold_begin(struct wl_listener *listener, void *data) {
	struct wlr_pointer_hold_begin_event *event = data;

	// Forward hold begin event to client
	wlr_pointer_gestures_v1_send_hold_begin(pointer_gestures, seat,
											event->time_msec, event->fingers);
}

void hold_end(struct wl_listener *listener, void *data) {
	struct wlr_pointer_hold_end_event *event = data;

	// Forward hold end event to client
	wlr_pointer_gestures_v1_send_hold_end(pointer_gestures, seat,
										  event->time_msec, event->cancelled);
}

Client *find_closest_tiled_client(Client *c) {
	Client *tc, *closest = NULL;
	long min_dist = LONG_MAX;
	Monitor *cursor_mon = xytomon(cursor->x, cursor->y);

	wl_list_for_each(tc, &clients, link) {
		if (tc == c || !ISTILED(tc) || !VISIBLEON(tc, cursor_mon))
			continue;

		if (cursor->x >= tc->geom.x &&
			cursor->x < tc->geom.x + tc->geom.width &&
			cursor->y >= tc->geom.y &&
			cursor->y < tc->geom.y + tc->geom.height) {
			return tc;
		}

		int32_t dx = tc->geom.x + (int32_t)(tc->geom.width / 2) - cursor->x;
		int32_t dy = tc->geom.y + (int32_t)(tc->geom.height / 2) - cursor->y;
		long dist = (long)dx * dx + (long)dy * dy;

		if (dist < min_dist) {
			min_dist = dist;
			closest = tc;
		}
	}

	return closest;
}

void place_drag_tile_client(Client *c) {
	Client *closest = find_closest_tiled_client(c);

	if (closest && closest->mon) {
		const Layout *layout =
			closest->mon->pertag->ltidxs[closest->mon->pertag->curtag];

		if (closest->drop_direction == UNDIR) {
			setfloating(c, 0);
			wl_list_remove(&c->link);
			wl_list_insert(closest->link.prev, &c->link);
			arrange(closest->mon, false, false);
			return;
		}

		if (layout->id == SCROLLER) {
			scroller_drop_tile(c, closest, 0);
			return;
		}
		if (layout->id == VERTICAL_SCROLLER) {
			scroller_drop_tile(c, closest, 1);
			return;
		}
		if (layout->id == DWINDLE) {
			uint32_t tag = c->mon->pertag->curtag;
			bool insert_before = (closest->drop_direction == LEFT ||
								  closest->drop_direction == UP);
			bool split_h = (closest->drop_direction == LEFT ||
							closest->drop_direction == RIGHT);
			dwindle_insert(&c->mon->pertag->dwindle_root[tag], c, closest,
						   config.dwindle_split_ratio, insert_before, split_h,
						   !config.dwindle_drop_simple_split);
			setfloating(c, 0);
			return;
		}

		if (closest->drop_direction == LEFT || closest->drop_direction == UP) {
			wl_list_remove(&c->link);
			wl_list_insert(closest->link.prev, &c->link);
		} else {
			wl_list_remove(&c->link);
			wl_list_insert(&closest->link, &c->link);
		}
	}

	setfloating(c, 0);
}

bool check_trackpad_disabled(struct wlr_pointer *pointer) {
	if (!config.disable_trackpad) {
		return false;
	}

	return pointer_is_trackpad(pointer);
}

void // 鼠标按键事件
buttonpress(struct wl_listener *listener, void *data) {
	struct wlr_pointer_button_event *event = data;

	if (!handle_buttonpress(event))
		wlr_seat_pointer_notify_button(seat, event->time_msec, event->button,
									   event->state);
}

bool handle_buttonpress(struct wlr_pointer_button_event *event) {
	struct wlr_keyboard *hard_keyboard, *keyboard;
	uint32_t hard_mods, mods;
	Client *c = NULL;
	LayerSurface *l = NULL;
	struct wlr_surface *surface;
	Client *tmpc = NULL;
	int32_t ji;
	const MouseBinding *m;
	struct wlr_surface *old_pointer_focus_surface =
		seat->pointer_state.focused_surface;

	handlecursoractivity();
	wlr_idle_notifier_v1_notify_activity(idle_notifier, seat);

	if (event->pointer && check_trackpad_disabled(event->pointer)) {
		return true;
	}

	switch (event->state) {
	case WL_POINTER_BUTTON_STATE_PRESSED:
		cursor_mode = CurPressed;
		selmon = xytomon(cursor->x, cursor->y);
		if (locked)
			break;

		xytonode(cursor->x, cursor->y, &surface, NULL, NULL, NULL, NULL);
		if (toplevel_from_wlr_surface(surface, &c, &l) >= 0) {
			if (c && c->scene->node.enabled &&
				(!client_is_unmanaged(c) || client_wants_focus(c)))
				focusclient(c, 1);

			if (surface != old_pointer_focus_surface) {
				wlr_seat_pointer_notify_clear_focus(seat);
				motionnotify(0, NULL, 0, 0, 0, 0);
			}

			// 聚焦按需要交互焦点的layer，但注意不能抢占独占焦点的layer
			if (l && !exclusive_focus &&
				l->layer_surface->current.keyboard_interactive ==
					ZWLR_LAYER_SURFACE_V1_KEYBOARD_INTERACTIVITY_ON_DEMAND) {
				focuslayer(l);
			}
		}

		// overview模式下鼠标左键跳转，右键关闭窗口
		if (selmon && selmon->isoverview && event->button == BTN_LEFT && c) {
			toggleoverview(&(Arg){.i = 1});
			return true;
		}

		if (selmon && selmon->isoverview && event->button == BTN_RIGHT && c) {
			pending_kill_client(c);
			return true;
		}

		// 当鼠标焦点在layer上的时候，不检测虚拟键盘的mod状态，
		// 避免layer虚拟键盘锁死mod按键状态
		hard_keyboard = &kb_group->wlr_group->keyboard;
		hard_mods =
			hard_keyboard ? wlr_keyboard_get_modifiers(hard_keyboard) : 0;

		keyboard = wlr_seat_get_keyboard(seat);
		mods = keyboard && !l ? wlr_keyboard_get_modifiers(keyboard) : 0;

		mods = mods | hard_mods;

		for (ji = 0; ji < config.mouse_bindings_count; ji++) {
			if (config.mouse_bindings_count < 1)
				break;
			m = &config.mouse_bindings[ji];

			if (CLEANMASK(mods) == CLEANMASK(m->mod) &&
				event->button == m->button && m->func &&
				(CLEANMASK(m->mod) != 0 ||
				 (event->button != BTN_LEFT && event->button != BTN_RIGHT))) {
				m->func(&m->arg);
				return true;
			}
		}
		break;
	case WL_POINTER_BUTTON_STATE_RELEASED:
		/* If you released any buttons, we exit interactive move/resize mode. */
		if (!locked && cursor_mode != CurNormal && cursor_mode != CurPressed) {
			cursor_mode = CurNormal;
			/* Clear the pointer focus, this way if the cursor is over a surface
			 * we will send an enter event after which the client will provide
			 * us a cursor surface */
			wlr_seat_pointer_clear_focus(seat);
			motionnotify(0, NULL, 0, 0, 0, 0);
			/* Drop the window off on its new monitor */
			if (grabc == selmon->sel) {
				selmon->sel = NULL;
			}
			selmon = xytomon(cursor->x, cursor->y);
			client_update_oldmonname_record(grabc, selmon);
			setmon(grabc, selmon, 0, true);
			selmon->prevsel = ISTILED(selmon->sel) ? selmon->sel : NULL;
			selmon->sel = grabc;
			tmpc = grabc;
			grabc = NULL;
			start_drag_window = false;
			last_apply_drap_time = 0;
			if (tmpc->drag_to_tile && config.drag_tile_to_tile) {
				place_drag_tile_client(tmpc);
				tmpc->float_geom = tmpc->drag_tile_float_backup_geom;
			} else {
				apply_window_snap(tmpc);
			}
			tmpc->drag_to_tile = false;
			if (dropc) {
				dropc->enable_drop_area_draw = false;
				client_set_drop_area(dropc);
				dropc = NULL;
			}
			return true;
		} else {
			cursor_mode = CurNormal;
		}
		break;
	}
	/* If the event wasn't handled by the compositor, return false */
	return false;
}

void checkidleinhibitor(struct wlr_surface *exclude) {
	int32_t inhibited = 0;
	Client *c = NULL;
	struct wlr_surface *surface = NULL;
	struct wlr_idle_inhibitor_v1 *inhibitor;

	wl_list_for_each(inhibitor, &idle_inhibit_mgr->inhibitors, link) {
		surface = wlr_surface_get_root_surface(inhibitor->surface);

		if (exclude == surface) {
			continue;
		}

		toplevel_from_wlr_surface(inhibitor->surface, &c, NULL);

		if (config.idleinhibit_ignore_visible) {
			inhibited = 1;
			break;
		}

		struct wlr_scene_tree *tree = surface->data;
		if (!tree || (tree->node.enabled && (!c || !c->animation.tagouting))) {
			inhibited = 1;
			break;
		}
	}

	wlr_idle_notifier_v1_set_inhibited(idle_notifier, inhibited);
}

void last_cursor_surface_destroy(struct wl_listener *listener, void *data) {
	last_cursor.surface = NULL;
	wl_list_remove(&listener->link);
}

void setcursorshape(struct wl_listener *listener, void *data) {
	struct wlr_cursor_shape_manager_v1_request_set_shape_event *event = data;
	if (cursor_mode != CurNormal && cursor_mode != CurPressed)
		return;
	/* This can be sent by any client, so we check to make sure this one is
	 * actually has pointer focus first. If so, we can tell the cursor to
	 * use the provided cursor shape. */
	if (event->seat_client == seat->pointer_state.focused_client) {
		/* Remove surface destroy listener if active */
		if (last_cursor.surface &&
			last_cursor_surface_destroy_listener.link.prev != NULL)
			wl_list_remove(&last_cursor_surface_destroy_listener.link);

		last_cursor.shape = event->shape;
		last_cursor.surface = NULL;
		if (!cursor_hidden)
			wlr_cursor_set_xcursor(cursor, cursor_mgr,
								   wlr_cursor_shape_v1_name(event->shape));
	}
}

void cleanuplisteners(void) {
	wl_list_remove(&ext_manager_commit_listener.link); // 0.7
	wl_list_remove(&print_status_listener.link);
	wl_list_remove(&cursor_axis.link);
	wl_list_remove(&cursor_button.link);
	wl_list_remove(&cursor_frame.link);
	wl_list_remove(&cursor_motion.link);
	wl_list_remove(&cursor_motion_absolute.link);
	wl_list_remove(&tablet_tool_proximity.link);
	wl_list_remove(&tablet_tool_axis.link);
	wl_list_remove(&tablet_tool_button.link);
	wl_list_remove(&tablet_tool_tip.link);
	wl_list_remove(&gpu_reset.link);
	wl_list_remove(&new_idle_inhibitor.link);
	wl_list_remove(&layout_change.link);
	wl_list_remove(&new_input_device.link);
	wl_list_remove(&new_virtual_keyboard.link);
	wl_list_remove(&new_virtual_pointer.link);
	wl_list_remove(&new_pointer_constraint.link);
	wl_list_remove(&new_output.link);
	wl_list_remove(&new_xdg_toplevel.link);
	wl_list_remove(&new_xdg_decoration.link);
	wl_list_remove(&new_xdg_popup.link);
	wl_list_remove(&new_layer_surface.link);
	wl_list_remove(&output_mgr_apply.link);
	wl_list_remove(&output_mgr_test.link);
	wl_list_remove(&output_power_mgr_set_mode.link);
	wl_list_remove(&request_activate.link);
	wl_list_remove(&request_cursor.link);
	wl_list_remove(&request_set_psel.link);
	wl_list_remove(&request_set_sel.link);
	wl_list_remove(&request_set_cursor_shape.link);
	wl_list_remove(&request_start_drag.link);
	wl_list_remove(&start_drag.link);
	wl_list_remove(&new_session_lock.link);
	wl_list_remove(&tearing_new_object.link);
	wl_list_remove(&keyboard_shortcuts_inhibit_new_inhibitor.link);
	if (drm_lease_manager) {
		wl_list_remove(&drm_lease_request.link);
	}
#ifdef XWAYLAND
	wl_list_remove(&new_xwayland_surface.link);
	wl_list_remove(&xwayland_ready.link);
#endif
}

void cleanup(void) {
	ipc_cleanup();
	cleanuplisteners();
#ifdef XWAYLAND
	wlr_xwayland_destroy(xwayland);
	xwayland = NULL;
#endif

	wl_display_destroy_clients(dpy);
	if (child_pid > 0) {
		kill(-child_pid, SIGTERM);
		waitpid(child_pid, NULL, 0);
	}
	wlr_xcursor_manager_destroy(cursor_mgr);

	destroykeyboardgroup(&kb_group->destroy, NULL);

	dwl_im_relay_finish(dwl_input_method_relay);

	/* If it's not destroyed manually it will cause a use-after-free of
	 * wlr_seat. Destroy it until it's fixed in the wlroots side */
	wlr_backend_destroy(backend);

	wl_display_destroy(dpy);
	/* Destroy after the wayland display (when the monitors are already
	   destroyed) to avoid destroying them with an invalid scene output. */
	wlr_scene_node_destroy(&scene->tree.node);
}

void cleanupmon(struct wl_listener *listener, void *data) {
	Monitor *m = wl_container_of(listener, m, destroy);
	LayerSurface *l = NULL, *tmp = NULL;
	uint32_t i;

	m->iscleanuping = true;

	/* m->layers[i] are intentionally not unlinked */
	for (i = 0; i < LENGTH(m->layers); i++) {
		wl_list_for_each_safe(l, tmp, &m->layers[i], link)
			wlr_layer_surface_v1_destroy(l->layer_surface);
	}

	// clean ext-workspaces grouplab
	wlr_ext_workspace_group_handle_v1_output_leave(m->ext_group, m->wlr_output);
	wlr_ext_workspace_group_handle_v1_destroy(m->ext_group);
	cleanup_workspaces_by_monitor(m);

	wl_list_remove(&m->destroy.link);
	wl_list_remove(&m->frame.link);
	wl_list_remove(&m->link);
	wl_list_remove(&m->request_state.link);
	if (m->lock_surface)
		destroylocksurface(&m->destroy_lock_surface, NULL);
	m->wlr_output->data = NULL;
	wlr_output_layout_remove(output_layout, m->wlr_output);
	wlr_scene_output_destroy(m->scene_output);

	closemon(m);
	if (m->blur) {
		wlr_scene_node_destroy(&m->blur->node);
		m->blur = NULL;
	}
	if (m->skip_frame_timeout) {
		monitor_stop_skip_frame_timer(m);
		wl_event_source_remove(m->skip_frame_timeout);
		m->skip_frame_timeout = NULL;
	}
	m->wlr_output->data = NULL;

	cleanup_monitor_dwindle(m);
	cleanup_monitor_scroller(m);

	free(m->pertag);
	free(m);
}

void closemon(Monitor *m) {
	/* update selmon if needed and
	 * move closed monitor's clients to the focused one */
	Client *c = NULL;
	int32_t i = 0, nmons = wl_list_length(&mons);
	if (!nmons) {
		selmon = NULL;
	} else if (m == selmon) {
		do /* don't switch to disabled mons */
			selmon = wl_container_of(mons.next, selmon, link);
		while (!selmon->wlr_output->enabled && i++ < nmons);

		if (!selmon->wlr_output->enabled)
			selmon = NULL;
	}

	wl_list_for_each(c, &clients, link) {
		if (c->mon == m) {

			if (selmon == NULL) {
				if (c->foreign_toplevel) {
					wlr_foreign_toplevel_handle_v1_output_leave(
						c->foreign_toplevel, c->mon->wlr_output);
					wlr_foreign_toplevel_handle_v1_destroy(c->foreign_toplevel);
					c->foreign_toplevel = NULL;
				}

				c->mon = NULL;
			} else {
				client_change_mon(c, selmon);
			}
			// record the oldmonname which is used to restore
			if (c->oldmonname[0] == '\0') {
				client_update_oldmonname_record(c, m);
			}
		}
	}
	if (selmon) {
		focusclient(focustop(selmon), 1);
		printstatus(IPC_WATCH_ARRANGGE);
	}
}

static void iter_layer_scene_buffers(struct wlr_scene_buffer *buffer,
									 int32_t sx, int32_t sy, void *user_data) {
	struct wlr_scene_surface *scene_surface =
		wlr_scene_surface_try_from_buffer(buffer);
	if (!scene_surface) {
		return;
	}

	wlr_scene_buffer_set_backdrop_blur(buffer, true);
	wlr_scene_buffer_set_backdrop_blur_ignore_transparent(buffer, true);
	if (config.blur_optimized) {
		wlr_scene_buffer_set_backdrop_blur_optimized(buffer, true);
	} else {
		wlr_scene_buffer_set_backdrop_blur_optimized(buffer, false);
	}
}

void layer_flush_blur_background(LayerSurface *l) {
	if (!config.blur)
		return;

	// 如果背景层发生变化,标记优化的模糊背景缓存需要更新
	if (l->layer_surface->current.layer ==
		ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND) {
		if (l->mon) {
			wlr_scene_optimized_blur_mark_dirty(l->mon->blur);
		}
	}
}

void maplayersurfacenotify(struct wl_listener *listener, void *data) {
	LayerSurface *l = wl_container_of(listener, l, map);
	struct wlr_layer_surface_v1 *layer_surface = l->layer_surface;
	int32_t ji;
	ConfigLayerRule *r;

	l->mapped = 1;

	if (!l->mon)
		return;
	strncpy(l->mon->last_open_surface, layer_surface->namespace,
			sizeof(l->mon->last_open_surface) - 1); // 最多拷贝255个字符
	l->mon->last_open_surface[sizeof(l->mon->last_open_surface) - 1] =
		'\0'; // 确保字符串以null结尾

	// 初始化几何位置
	get_layer_target_geometry(l, &l->geom);

	l->noanim = 0;
	l->dirty = false;
	l->noblur = 0;
	l->shadow = NULL;
	l->need_output_flush = true;

	// 应用layer规则
	for (ji = 0; ji < config.layer_rules_count; ji++) {
		if (config.layer_rules_count < 1)
			break;
		if (regex_match(config.layer_rules[ji].layer_name,
						l->layer_surface->namespace)) {

			r = &config.layer_rules[ji];
			APPLY_INT_PROP(l, r, noblur);
			APPLY_INT_PROP(l, r, noanim);
			APPLY_INT_PROP(l, r, noshadow);
			APPLY_STRING_PROP(l, r, animation_type_open);
			APPLY_STRING_PROP(l, r, animation_type_close);
		}
	}

	// 初始化阴影
	if (layer_surface->current.exclusive_zone == 0 &&
		layer_surface->current.layer != ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM &&
		layer_surface->current.layer != ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND) {
		l->shadow =
			wlr_scene_shadow_create(l->scene, 0, 0, config.border_radius,
									config.shadows_blur, config.shadowscolor);
		wlr_scene_node_lower_to_bottom(&l->shadow->node);
		wlr_scene_node_set_enabled(&l->shadow->node, true);
	}

	// 初始化动画
	if (config.animations && config.layer_animations && !l->noanim) {
		l->animation.duration = config.animation_duration_open;
		l->animation.action = OPEN;
		layer_set_pending_state(l);
	}
	// 刷新布局，让窗口能感应到exclude_zone变化以及设置独占表面
	arrangelayers(l->mon);
	reset_exclusive_layers_focus(l->mon);
}

void commitlayersurfacenotify(struct wl_listener *listener, void *data) {
	LayerSurface *l = wl_container_of(listener, l, surface_commit);
	struct wlr_layer_surface_v1 *layer_surface = l->layer_surface;
	struct wlr_scene_tree *scene_layer =
		layers[layermap[layer_surface->current.layer]];
	struct wlr_layer_surface_v1_state old_state;
	struct wlr_box box;

	if (l->layer_surface->initial_commit) {
		client_set_scale(layer_surface->surface, l->mon->wlr_output->scale);

		/* Temporarily set the layer's current state to pending
		 * so that we can easily arrange it */
		old_state = l->layer_surface->current;
		l->layer_surface->current = l->layer_surface->pending;
		arrangelayers(l->mon);
		l->layer_surface->current = old_state;
		// 按需交互layer只在map之前设置焦点
		if (!exclusive_focus &&
			l->layer_surface->current.keyboard_interactive ==
				ZWLR_LAYER_SURFACE_V1_KEYBOARD_INTERACTIVITY_ON_DEMAND) {
			focuslayer(l);
		}
		return;
	}

	// 检查surface是否有buffer
	// 空buffer，只是隐藏，不改变mapped状态
	if (l->mapped && !layer_surface->surface->buffer) {
		wlr_scene_node_set_enabled(&l->scene->node, false);
		return;
	} else {
		wlr_scene_node_set_enabled(&l->scene->node, true);
	}

	get_layer_target_geometry(l, &box);

	if (config.animations && config.layer_animations && !l->noanim &&
		l->mapped &&
		layer_surface->current.layer != ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM &&
		layer_surface->current.layer != ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND &&
		!wlr_box_equal(&box, &l->geom)) {

		l->geom.x = box.x;
		l->geom.y = box.y;
		l->geom.width = box.width;
		l->geom.height = box.height;
		l->animation.action = MOVE;
		l->animation.duration = config.animation_duration_move;
		l->need_output_flush = true;
		layer_set_pending_state(l);
	}

	if (config.blur && config.blur_layer) {

		if (!l->noblur &&
			layer_surface->current.layer != ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM &&
			layer_surface->current.layer !=
				ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND) {

			wlr_scene_node_for_each_buffer(&l->scene->node,
										   iter_layer_scene_buffers, l);
		}
	}

	layer_flush_blur_background(l);

	if (layer_surface->current.committed == 0 &&
		l->mapped == layer_surface->surface->mapped)
		return;
	l->mapped = layer_surface->surface->mapped;

	if (layer_surface->current.committed & WLR_LAYER_SURFACE_V1_STATE_LAYER) {
		if (scene_layer != l->scene->node.parent) {
			wlr_scene_node_reparent(&l->scene->node, scene_layer);
			wl_list_remove(&l->link);
			wl_list_insert(&l->mon->layers[layer_surface->current.layer],
						   &l->link);
			wlr_scene_node_reparent(
				&l->popups->node,
				(layer_surface->current.layer < ZWLR_LAYER_SHELL_V1_LAYER_TOP
					 ? layers[LyrTop]
					 : scene_layer));
		}
	}

	arrangelayers(l->mon);

	if (layer_surface->current.committed &
		WLR_LAYER_SURFACE_V1_STATE_KEYBOARD_INTERACTIVITY) {
		reset_exclusive_layers_focus(l->mon);
	}
}

void commitnotify(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, commit);
	struct wlr_box *new_geo;

	if (c->surface.xdg->initial_commit) {
		// xdg client will first enter this before mapnotify
		init_client_properties(c);
		applyrules(c);
		if (c->mon) {
			client_set_scale(client_surface(c), c->mon->wlr_output->scale);
		}
		setmon(c, NULL, 0,
			   true); /* Make sure to reapply rules in mapnotify() */

		uint32_t serial = wlr_xdg_surface_schedule_configure(c->surface.xdg);
		if (serial > 0) {
			c->configure_serial = serial;
		}

		uint32_t wm_caps = WLR_XDG_TOPLEVEL_WM_CAPABILITIES_FULLSCREEN;

		if (!c->ignore_minimize)
			wm_caps |= WLR_XDG_TOPLEVEL_WM_CAPABILITIES_MINIMIZE;

		if (!c->ignore_maximize)
			wm_caps |= WLR_XDG_TOPLEVEL_WM_CAPABILITIES_MAXIMIZE;

		wlr_xdg_toplevel_set_wm_capabilities(c->surface.xdg->toplevel, wm_caps);

		if (c->mon) {
			wlr_xdg_toplevel_set_bounds(c->surface.xdg->toplevel,
										c->mon->w.width - 2 * c->bw,
										c->mon->w.height - 2 * c->bw);
		}

		if (c->decoration)
			requestdecorationmode(&c->set_decoration_mode, c->decoration);
		return;
	}

	if (!c || c->iskilling || c->animation.tagouting || c->animation.tagouted ||
		c->animation.tagining)
		return;

	if (c->configure_serial &&
		c->configure_serial <= c->surface.xdg->current.configure_serial)
		c->configure_serial = 0;

	if (!c->dirty) {
		new_geo = &c->surface.xdg->geometry;
		c->dirty = new_geo->width != c->geom.width - 2 * c->bw ||
				   new_geo->height != c->geom.height - 2 * c->bw ||
				   new_geo->x != 0 || new_geo->y != 0;
	}

	if (c == grabc || !c->dirty)
		return;

	resize(c, c->geom, 0);

	new_geo = &c->surface.xdg->geometry;
	c->dirty = new_geo->width != c->geom.width - 2 * c->bw ||
			   new_geo->height != c->geom.height - 2 * c->bw ||
			   new_geo->x != 0 || new_geo->y != 0;
}

void destroydecoration(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, destroy_decoration);

	wl_list_remove(&c->destroy_decoration.link);
	wl_list_remove(&c->set_decoration_mode.link);
}

static bool popup_unconstrain(Popup *popup) {
	struct wlr_xdg_popup *wlr_popup = popup->wlr_popup;
	Client *c = NULL;
	LayerSurface *l = NULL;
	int32_t type = -1;

	if (!wlr_popup || !wlr_popup->parent) {
		return false;
	}

	struct wlr_scene_node *parent_node = wlr_popup->parent->data;
	if (!parent_node) {
		wlr_log(WLR_ERROR, "Popup parent has no scene node");
		return false;
	}

	type = toplevel_from_wlr_surface(wlr_popup->base->surface, &c, &l);
	if ((l && !l->mon) || (c && !c->mon)) {
		return true;
	}

	struct wlr_box usable = type == LayerShell ? l->mon->m : c->mon->w;

	int lx, ly;
	struct wlr_box constraint_box;

	if (type == LayerShell) {
		wlr_scene_node_coords(&l->scene_layer->tree->node, &lx, &ly);
		constraint_box.x = usable.x - lx;
		constraint_box.y = usable.y - ly;
		constraint_box.width = usable.width;
		constraint_box.height = usable.height;
	} else {
		constraint_box.x =
			usable.x - (c->geom.x + c->bw - c->surface.xdg->current.geometry.x);
		constraint_box.y =
			usable.y - (c->geom.y + c->bw - c->surface.xdg->current.geometry.y);
		constraint_box.width = usable.width;
		constraint_box.height = usable.height;
	}

	wlr_xdg_popup_unconstrain_from_box(wlr_popup, &constraint_box);
	return false;
}

static void destroypopup(struct wl_listener *listener, void *data) {
	Popup *popup = wl_container_of(listener, popup, destroy);
	wl_list_remove(&popup->destroy.link);
	wl_list_remove(&popup->reposition.link);
	free(popup);
}

static void commitpopup(struct wl_listener *listener, void *data) {
	Popup *popup = wl_container_of(listener, popup, commit);

	struct wlr_surface *surface = data;
	bool should_destroy = false;
	struct wlr_xdg_popup *wlr_popup =
		wlr_xdg_popup_try_from_wlr_surface(surface);

	if (!wlr_popup->base->initial_commit)
		return;

	if (!wlr_popup->parent || !wlr_popup->parent->data) {
		should_destroy = true;
		goto cleanup_popup_commit;
	}

	wlr_scene_node_raise_to_top(wlr_popup->parent->data);

	wlr_popup->base->surface->data =
		wlr_scene_xdg_surface_create(wlr_popup->parent->data, wlr_popup->base);

	popup->wlr_popup = wlr_popup;

	should_destroy = popup_unconstrain(popup);

cleanup_popup_commit:

	wl_list_remove(&popup->commit.link);
	popup->commit.notify = NULL;

	if (should_destroy) {
		wlr_xdg_popup_destroy(wlr_popup);
	}
}

static void repositionpopup(struct wl_listener *listener, void *data) {
	Popup *popup = wl_container_of(listener, popup, reposition);
	(void)popup_unconstrain(popup);
}

static void createpopup(struct wl_listener *listener, void *data) {
	struct wlr_xdg_popup *wlr_popup = data;

	Popup *popup = calloc(1, sizeof(Popup));
	if (!popup)
		return;

	popup->destroy.notify = destroypopup;
	wl_signal_add(&wlr_popup->events.destroy, &popup->destroy);

	popup->commit.notify = commitpopup;
	wl_signal_add(&wlr_popup->base->surface->events.commit, &popup->commit);

	popup->reposition.notify = repositionpopup;
	wl_signal_add(&wlr_popup->events.reposition, &popup->reposition);
}

void createdecoration(struct wl_listener *listener, void *data) {
	struct wlr_xdg_toplevel_decoration_v1 *deco = data;
	Client *c = deco->toplevel->base->data;
	c->decoration = deco;

	LISTEN(&deco->events.request_mode, &c->set_decoration_mode,
		   requestdecorationmode);
	LISTEN(&deco->events.destroy, &c->destroy_decoration, destroydecoration);

	requestdecorationmode(&c->set_decoration_mode, deco);
}

void createidleinhibitor(struct wl_listener *listener, void *data) {
	struct wlr_idle_inhibitor_v1 *idle_inhibitor = data;
	LISTEN_STATIC(&idle_inhibitor->events.destroy, destroyidleinhibitor);

	checkidleinhibitor(NULL);
}

void createkeyboard(struct wlr_keyboard *keyboard) {

	struct libinput_device *device = NULL;

	if (wlr_input_device_is_libinput(&keyboard->base) &&
		(device = wlr_libinput_get_device_handle(&keyboard->base))) {

		InputDevice *input_dev = calloc(1, sizeof(InputDevice));
		input_dev->wlr_device = &keyboard->base;
		input_dev->libinput_device = device;
		input_dev->device_data = keyboard;

		input_dev->destroy_listener.notify = destroyinputdevice;
		wl_signal_add(&keyboard->base.events.destroy,
					  &input_dev->destroy_listener);

		wl_list_insert(&inputdevices, &input_dev->link);
	}

	/* Set the keymap to match the group keymap */
	wlr_keyboard_set_keymap(keyboard, kb_group->wlr_group->keyboard.keymap);

	wlr_keyboard_notify_modifiers(keyboard, 0, 0, locked_mods, 0);

	/* Add the new keyboard to the group */
	wlr_keyboard_group_add_keyboard(kb_group->wlr_group, keyboard);
}

KeyboardGroup *createkeyboardgroup(void) {
	KeyboardGroup *group = ecalloc(1, sizeof(*group));
	struct xkb_context *context;
	struct xkb_keymap *keymap;

	group->wlr_group = wlr_keyboard_group_create();
	group->wlr_group->data = group;

	context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
	if (!(keymap = xkb_keymap_new_from_names(context, &config.xkb_rules,
											 XKB_KEYMAP_COMPILE_NO_FLAGS)))
		die("failed to compile keymap");

	wlr_keyboard_set_keymap(&group->wlr_group->keyboard, keymap);

	if (config.numlockon) {
		xkb_mod_index_t mod_index =
			xkb_keymap_mod_get_index(keymap, XKB_MOD_NAME_NUM);
		if (mod_index != XKB_MOD_INVALID)
			locked_mods |= (uint32_t)1 << mod_index;
	}

	if (config.capslock) {
		xkb_mod_index_t mod_index =
			xkb_keymap_mod_get_index(keymap, XKB_MOD_NAME_CAPS);
		if (mod_index != XKB_MOD_INVALID)
			locked_mods |= (uint32_t)1 << mod_index;
	}

	if (locked_mods)
		wlr_keyboard_notify_modifiers(&group->wlr_group->keyboard, 0, 0,
									  locked_mods, 0);

	xkb_keymap_unref(keymap);
	xkb_context_unref(context);

	wlr_keyboard_set_repeat_info(&group->wlr_group->keyboard,
								 config.repeat_rate, config.repeat_delay);

	/* Set up listeners for keyboard events */
	LISTEN(&group->wlr_group->keyboard.events.key, &group->key, keypress);
	LISTEN(&group->wlr_group->keyboard.events.modifiers, &group->modifiers,
		   keypressmod);

	group->key_repeat_source =
		wl_event_loop_add_timer(event_loop, keyrepeat, group);

	/* A seat can only have one keyboard, but this is a limitation of the
	 * Wayland protocol - not wlroots. We assign all connected keyboards to the
	 * same wlr_keyboard_group, which provides a single wlr_keyboard interface
	 * for all of them. Set this combined wlr_keyboard as the seat keyboard.
	 */
	wlr_seat_set_keyboard(seat, &group->wlr_group->keyboard);
	return group;
}

void createlayersurface(struct wl_listener *listener, void *data) {
	struct wlr_layer_surface_v1 *layer_surface = data;
	LayerSurface *l = NULL;
	struct wlr_surface *surface = layer_surface->surface;
	struct wlr_scene_tree *scene_layer =
		layers[layermap[layer_surface->pending.layer]];

	if (!layer_surface->output &&
		!(layer_surface->output = selmon ? selmon->wlr_output : NULL)) {
		wlr_layer_surface_v1_destroy(layer_surface);
		return;
	}

	l = layer_surface->data = ecalloc(1, sizeof(*l));
	l->type = LayerShell;
	LISTEN(&surface->events.map, &l->map, maplayersurfacenotify);
	LISTEN(&surface->events.commit, &l->surface_commit,
		   commitlayersurfacenotify);
	LISTEN(&surface->events.unmap, &l->unmap, unmaplayersurfacenotify);

	l->layer_surface = layer_surface;
	l->mon = layer_surface->output->data;
	l->scene_layer =
		wlr_scene_layer_surface_v1_create(scene_layer, layer_surface);
	l->scene = l->scene_layer->tree;
	l->popups = surface->data = wlr_scene_tree_create(
		layer_surface->current.layer < ZWLR_LAYER_SHELL_V1_LAYER_TOP
			? layers[LyrTop]
			: scene_layer);
	l->scene->node.data = l->popups->node.data = l;

	LISTEN(&l->scene->node.events.destroy, &l->destroy, destroylayernodenotify);

	wl_list_insert(&l->mon->layers[layer_surface->pending.layer], &l->link);
}

void createlocksurface(struct wl_listener *listener, void *data) {
	SessionLock *lock = wl_container_of(listener, lock, new_surface);
	struct wlr_session_lock_surface_v1 *lock_surface = data;
	Monitor *m = lock_surface->output->data;
	struct wlr_scene_tree *scene_tree = lock_surface->surface->data =
		wlr_scene_subsurface_tree_create(lock->scene, lock_surface->surface);
	m->lock_surface = lock_surface;

	wlr_scene_node_set_position(&scene_tree->node, m->m.x, m->m.y);
	wlr_session_lock_surface_v1_configure(lock_surface, m->m.width,
										  m->m.height);

	LISTEN(&lock_surface->events.destroy, &m->destroy_lock_surface,
		   destroylocksurface);

	if (m == selmon)
		client_notify_enter(lock_surface->surface, wlr_seat_get_keyboard(seat));
}

struct wlr_output_mode *get_nearest_output_mode(struct wlr_output *output,
												int32_t width, int32_t height,
												float refresh) {
	struct wlr_output_mode *mode, *nearest_mode = NULL;
	float min_diff = 99999.0f;

	wl_list_for_each(mode, &output->modes, link) {
		if (mode->width == width && mode->height == height) {
			float mode_refresh = mode->refresh / 1000.0f;
			float diff = fabsf(mode_refresh - refresh);

			if (diff < min_diff) {
				min_diff = diff;
				nearest_mode = mode;
			}
		}
	}

	return nearest_mode;
}

void enable_adaptive_sync(Monitor *m, struct wlr_output_state *state) {
	wlr_output_state_set_adaptive_sync_enabled(state, true);
	if (!wlr_output_test_state(m->wlr_output, state)) {
		wlr_output_state_set_adaptive_sync_enabled(state, false);
		wlr_log(WLR_DEBUG, "failed to enable adaptive sync for output %s",
				m->wlr_output->name);
	} else {
		wlr_log(WLR_INFO, "adaptive sync enabled for output %s",
				m->wlr_output->name);
	}
}

bool monitor_matches_rule(Monitor *m, const ConfigMonitorRule *rule) {
	if (rule->name != NULL && !regex_match(rule->name, m->wlr_output->name))
		return false;
	if (rule->make != NULL && (m->wlr_output->make == NULL ||
							   strcmp(rule->make, m->wlr_output->make) != 0))
		return false;
	if (rule->model != NULL && (m->wlr_output->model == NULL ||
								strcmp(rule->model, m->wlr_output->model) != 0))
		return false;
	if (rule->serial != NULL &&
		(m->wlr_output->serial == NULL ||
		 strcmp(rule->serial, m->wlr_output->serial) != 0))
		return false;
	return true;
}

/* 将规则中的显示参数应用到 wlr_output_state 中，返回是否设置了自定义模式 */
bool apply_rule_to_state(Monitor *m, const ConfigMonitorRule *rule,
						 struct wlr_output_state *state, int vrr, int custom) {
	bool mode_set = false;
	if (rule->width > 0 && rule->height > 0 && rule->refresh > 0) {
		struct wlr_output_mode *internal_mode = get_nearest_output_mode(
			m->wlr_output, rule->width, rule->height, rule->refresh);
		if (internal_mode) {
			wlr_output_state_set_mode(state, internal_mode);
			mode_set = true;
		} else if (custom || wlr_output_is_headless(m->wlr_output)) {
			wlr_output_state_set_custom_mode(
				state, rule->width, rule->height,
				(int32_t)roundf(rule->refresh * 1000));
			mode_set = true;
		}
	}
	if (vrr) {
		enable_adaptive_sync(m, state);
	} else {
		wlr_output_state_set_adaptive_sync_enabled(state, false);
	}
	wlr_output_state_set_scale(state, rule->scale);
	wlr_output_state_set_transform(state, rule->rr);
	return mode_set;
}

void createmon(struct wl_listener *listener, void *data) {
	/* This event is raised by the backend when a new output (aka a display or
	 * monitor) becomes available. */
	struct wlr_output *wlr_output = data;
	const ConfigMonitorRule *r;
	uint32_t i;
	int32_t ji, vrr, custom;
	struct wlr_output_state state;
	Monitor *m = NULL;
	bool custom_monitor_mode = false;

	if (!wlr_output_init_render(wlr_output, alloc, drw))
		return;

	if (wlr_output->non_desktop) {
		if (drm_lease_manager) {
			wlr_drm_lease_v1_manager_offer_output(drm_lease_manager,
												  wlr_output);
		}
		return;
	}

	struct wl_event_loop *loop = wl_display_get_event_loop(dpy);
	m = wlr_output->data = ecalloc(1, sizeof(*m));

	m->iscleanuping = false;
	m->skip_frame_timeout =
		wl_event_loop_add_timer(loop, monitor_skip_frame_timeout_callback, m);
	m->skiping_frame = false;
	m->resizing_count_pending = 0;
	m->resizing_count_current = 0;
	m->carousel_anim_dir = 0;

	m->wlr_output = wlr_output;
	m->wlr_output->data = m;

	wl_list_init(&m->dwl_ipc_outputs);

	for (i = 0; i < LENGTH(m->layers); i++)
		wl_list_init(&m->layers[i]);

	m->gappih = config.gappih;
	m->gappiv = config.gappiv;
	m->gappoh = config.gappoh;
	m->gappov = config.gappov;
	m->isoverview = 0;
	m->sel = NULL;
	m->is_in_hotarea = 0;
	m->m.x = INT32_MAX;
	m->m.y = INT32_MAX;
	float scale = 1;
	enum wl_output_transform rr = WL_OUTPUT_TRANSFORM_NORMAL;

	wlr_output_state_init(&state);
	wlr_output_state_set_scale(&state, scale);
	wlr_output_state_set_transform(&state, rr);

	for (ji = 0; ji < config.monitor_rules_count; ji++) {
		if (config.monitor_rules_count < 1)
			break;

		r = &config.monitor_rules[ji];

		if (monitor_matches_rule(m, r)) {
			m->m.x = r->x == INT32_MAX ? INT32_MAX : r->x;
			m->m.y = r->y == INT32_MAX ? INT32_MAX : r->y;
			vrr = r->vrr >= 0 ? r->vrr : 0;
			custom = r->custom >= 0 ? r->custom : 0;
			scale = r->scale;
			rr = r->rr;

			if (apply_rule_to_state(m, r, &state, vrr, custom)) {
				custom_monitor_mode = true;
			}
			break; // 只应用第一个匹配规则
		}
	}

	if (!custom_monitor_mode)
		wlr_output_state_set_mode(&state,
								  wlr_output_preferred_mode(wlr_output));

	/* Set up event listeners */
	LISTEN(&wlr_output->events.frame, &m->frame, rendermon);
	LISTEN(&wlr_output->events.destroy, &m->destroy, cleanupmon);
	LISTEN(&wlr_output->events.request_state, &m->request_state,
		   requestmonstate);

	wlr_output_state_set_enabled(&state, 1);
	wlr_output_commit_state(wlr_output, &state);
	wlr_output_state_finish(&state);

	wl_list_insert(&mons, &m->link);

	m->pertag = calloc(1, sizeof(Pertag));
	for (int i = 0; i < LENGTH(tags) + 1; i++)
		m->pertag->scroller_state[i] = NULL;

	if (chvt_backup_tag &&
		regex_match(chvt_backup_selmon, m->wlr_output->name)) {
		m->tagset[0] = m->tagset[1] = (1 << (chvt_backup_tag - 1)) & TAGMASK;
		m->pertag->curtag = m->pertag->prevtag = chvt_backup_tag;
		chvt_backup_tag = 0;
		memset(chvt_backup_selmon, 0, sizeof(chvt_backup_selmon));
	} else {
		m->tagset[0] = m->tagset[1] = 1;
		m->pertag->curtag = m->pertag->prevtag = 1;
	}

	for (i = 0; i <= LENGTH(tags); i++) {
		m->pertag->nmasters[i] = config.default_nmaster;
		m->pertag->mfacts[i] = config.default_mfact;
		m->pertag->ltidxs[i] = &layouts[0];
	}

	// apply tag rule
	parse_tagrule(m);

	/* The xdg-protocol specifies:
	 *
	 * If the fullscreened surface is not opaque, the compositor must make
	 * sure that other screen content not part of the same surface tree (made
	 * up of subsurfaces, popups or similarly coupled surfaces) are not
	 * visible below the fullscreened surface.
	 *
	 */

	/* Adds this to the output layout in the order it was configured.
	 *
	 * The output layout utility automatically adds a wl_output global to the
	 * display, which Wayland clients can see to find out information about the
	 * output (such as DPI, scale factor, manufacturer, etc).
	 */
	m->scene_output = wlr_scene_output_create(scene, wlr_output);
	if (m->m.x == INT32_MAX || m->m.y == INT32_MAX)
		wlr_output_layout_add_auto(output_layout, wlr_output);
	else
		wlr_output_layout_add(output_layout, wlr_output, m->m.x, m->m.y);

	if (config.blur) {
		m->blur = wlr_scene_optimized_blur_create(&scene->tree, 0, 0);
		wlr_scene_node_set_position(&m->blur->node, m->m.x, m->m.y);
		wlr_scene_node_reparent(&m->blur->node, layers[LyrBlur]);
		wlr_scene_optimized_blur_set_size(m->blur, m->m.width, m->m.height);
	}
	m->ext_group = wlr_ext_workspace_group_handle_v1_create(
		ext_manager, EXT_WORKSPACE_ENABLE_CAPS);
	wlr_ext_workspace_group_handle_v1_output_enter(m->ext_group, m->wlr_output);

	for (i = 1; i <= LENGTH(tags); i++) {
		add_workspace_by_tag(i, m);
	}

	printstatus(IPC_WATCH_ARRANGGE);
}

void // fix for 0.5
createnotify(struct wl_listener *listener, void *data) {
	/* This event is raised when wlr_xdg_shell receives a new xdg surface from a
	 * client, either a toplevel (application window) or popup,
	 * or when wlr_layer_shell receives a new popup from a layer.
	 * If you want to do something tricky with popups you should check if
	 * its parent is wlr_xdg_shell or wlr_layer_shell */
	struct wlr_xdg_toplevel *toplevel = data;
	Client *c = NULL;

	/* Allocate a Client for this surface */
	c = toplevel->base->data = ecalloc(1, sizeof(*c));
	c->surface.xdg = toplevel->base;
	c->bw = config.borderpx;

	LISTEN(&toplevel->base->surface->events.commit, &c->commit, commitnotify);
	LISTEN(&toplevel->base->surface->events.map, &c->map, mapnotify);
	LISTEN(&toplevel->base->surface->events.unmap, &c->unmap, unmapnotify);
	LISTEN(&toplevel->events.destroy, &c->destroy, destroynotify);
	LISTEN(&toplevel->events.request_fullscreen, &c->fullscreen,
		   fullscreennotify);
	LISTEN(&toplevel->events.request_maximize, &c->maximize, maximizenotify);
	LISTEN(&toplevel->events.request_minimize, &c->minimize, minimizenotify);
	LISTEN(&toplevel->events.set_title, &c->set_title, updatetitle);
}

void destroyinputdevice(struct wl_listener *listener, void *data) {
	InputDevice *input_dev =
		wl_container_of(listener, input_dev, destroy_listener);

	// 清理设备特定数据
	if (input_dev->device_data) {
		// 根据设备类型进行特定清理
		switch (input_dev->wlr_device->type) {
		case WLR_INPUT_DEVICE_SWITCH: {
			Switch *sw = (Switch *)input_dev->device_data;
			// 移除 toggle 监听器
			wl_list_remove(&sw->toggle.link);
			// 释放 Switch 内存
			free(sw);
			break;
		}
		// 可以添加其他设备类型的清理代码
		default:
			break;
		}
		input_dev->device_data = NULL;
	}

	// 从设备列表中移除
	wl_list_remove(&input_dev->link);
	// 移除 destroy 监听器
	wl_list_remove(&input_dev->destroy_listener.link);
	// 释放内存
	free(input_dev);
}

void pointer_set_accel(struct libinput_device *device, bool natural_scrolling,
					   uint32_t mouse_accel_profile, double mouse_accel_speed) {
	libinput_device_config_scroll_set_natural_scroll_enabled(device,
															 natural_scrolling);
	if (mouse_accel_profile &&
		libinput_device_config_accel_is_available(device)) {
		libinput_device_config_accel_set_profile(device, mouse_accel_profile);
		libinput_device_config_accel_set_speed(device, mouse_accel_speed);
	} else {
		// profile cannot be directly applied to 0, need to set to 1 first
		libinput_device_config_accel_set_profile(device, 1);
		libinput_device_config_accel_set_profile(device, 0);
		libinput_device_config_accel_set_speed(device, 0);
	}
}

void configure_pointer(struct libinput_device *device) {
	if (libinput_device_config_tap_get_finger_count(device)) {
		libinput_device_config_tap_set_enabled(device, config.tap_to_click);
		libinput_device_config_tap_set_drag_enabled(device,
													config.tap_and_drag);
		libinput_device_config_tap_set_drag_lock_enabled(device,
														 config.drag_lock);
		libinput_device_config_tap_set_button_map(device, config.button_map);
		pointer_set_accel(device, config.trackpad_natural_scrolling,
						  config.trackpad_accel_profile,
						  config.trackpad_accel_speed);
	} else {
		pointer_set_accel(device, config.mouse_natural_scrolling,
						  config.mouse_accel_profile, config.mouse_accel_speed);
	}

	if (libinput_device_config_dwt_is_available(device))
		libinput_device_config_dwt_set_enabled(device,
											   config.disable_while_typing);

	if (libinput_device_config_left_handed_is_available(device))
		libinput_device_config_left_handed_set(device, config.left_handed);

	if (libinput_device_config_middle_emulation_is_available(device))
		libinput_device_config_middle_emulation_set_enabled(
			device, config.middle_button_emulation);

	if (libinput_device_config_scroll_get_methods(device) !=
		LIBINPUT_CONFIG_SCROLL_NO_SCROLL)
		libinput_device_config_scroll_set_method(device, config.scroll_method);
	if (libinput_device_config_scroll_get_methods(device) ==
		LIBINPUT_CONFIG_SCROLL_ON_BUTTON_DOWN)
		libinput_device_config_scroll_set_button(device, config.scroll_button);

	if (libinput_device_config_click_get_methods(device) !=
		LIBINPUT_CONFIG_CLICK_METHOD_NONE)
		libinput_device_config_click_set_method(device, config.click_method);

	if (libinput_device_config_send_events_get_modes(device))
		libinput_device_config_send_events_set_mode(device,
													config.send_events_mode);
}

void createpointer(struct wlr_pointer *pointer) {

	struct libinput_device *device = NULL;

	if (wlr_input_device_is_libinput(&pointer->base) &&
		(device = wlr_libinput_get_device_handle(&pointer->base))) {

		configure_pointer(device);

		InputDevice *input_dev = calloc(1, sizeof(InputDevice));
		input_dev->wlr_device = &pointer->base;
		input_dev->libinput_device = device;

		input_dev->destroy_listener.notify = destroyinputdevice;
		wl_signal_add(&pointer->base.events.destroy,
					  &input_dev->destroy_listener);

		wl_list_insert(&inputdevices, &input_dev->link);
	}
	wlr_cursor_attach_input_device(cursor, &pointer->base);
}

void switch_toggle(struct wl_listener *listener, void *data) {
	// 获取包含监听器的结构体
	Switch *sw = wl_container_of(listener, sw, toggle);

	// 处理切换事件
	struct wlr_switch_toggle_event *event = data;
	SwitchBinding *s;
	int32_t ji;

	for (ji = 0; ji < config.switch_bindings_count; ji++) {
		if (config.switch_bindings_count < 1)
			break;
		s = &config.switch_bindings[ji];
		if (event->switch_state == s->fold && s->func) {
			s->func(&s->arg);
			return;
		}
	}
}

void createswitch(struct wlr_switch *switch_device) {

	struct libinput_device *device = NULL;

	if (wlr_input_device_is_libinput(&switch_device->base) &&
		(device = wlr_libinput_get_device_handle(&switch_device->base))) {

		InputDevice *input_dev = calloc(1, sizeof(InputDevice));
		input_dev->wlr_device = &switch_device->base;
		input_dev->libinput_device = device;
		input_dev->device_data = NULL; // 初始化为 NULL

		input_dev->destroy_listener.notify = destroyinputdevice;
		wl_signal_add(&switch_device->base.events.destroy,
					  &input_dev->destroy_listener);

		// 创建 Switch 特定数据
		Switch *sw = calloc(1, sizeof(Switch));
		sw->wlr_switch = switch_device;
		sw->toggle.notify = switch_toggle;
		sw->input_dev = input_dev;

		// 将 Switch 指针保存到 input_device 中
		input_dev->device_data = sw;

		// 添加 toggle 监听器
		wl_signal_add(&switch_device->events.toggle, &sw->toggle);

		// 添加到全局列表
		wl_list_insert(&inputdevices, &input_dev->link);
	}
}

void createpointerconstraint(struct wl_listener *listener, void *data) {
	PointerConstraint *pointer_constraint =
		ecalloc(1, sizeof(*pointer_constraint));
	pointer_constraint->constraint = data;
	LISTEN(&pointer_constraint->constraint->events.destroy,
		   &pointer_constraint->destroy, destroypointerconstraint);

	if (!selmon || !selmon->sel)
		return;

	struct wlr_surface *focused_surface = client_surface(selmon->sel);
	if (focused_surface &&
		focused_surface == pointer_constraint->constraint->surface) {
		cursorconstrain(pointer_constraint->constraint);
	}
}

void cursorconstrain(struct wlr_pointer_constraint_v1 *constraint) {
	if (active_constraint == constraint)
		return;

	if (active_constraint) {
		if (constraint == NULL) {
			cursorwarptohint();
		}
		wlr_pointer_constraint_v1_send_deactivated(active_constraint);
	}

	active_constraint = constraint;

	if (constraint) {
		wlr_pointer_constraint_v1_send_activated(constraint);
	}
}

void cursorframe(struct wl_listener *listener, void *data) {
	/* This event is forwarded by the cursor when a pointer emits an frame
	 * event. Frame events are sent after regular pointer events to group
	 * multiple events together. For instance, two axis events may happen at
	 * the same time, in which case a frame event won't be sent in between.
	 */
	/* Notify the client with pointer focus of the frame event. */
	wlr_seat_pointer_notify_frame(seat);
}

void cursorwarptohint(void) {
	Client *c = NULL;
	double sx = active_constraint->current.cursor_hint.x;
	double sy = active_constraint->current.cursor_hint.y;

	toplevel_from_wlr_surface(active_constraint->surface, &c, NULL);
	if (c && active_constraint->current.cursor_hint.enabled) {
		wlr_cursor_warp(cursor, NULL, sx + c->geom.x + c->bw,
						sy + c->geom.y + c->bw);
		wlr_seat_pointer_warp(active_constraint->seat, sx, sy);
	}
}

void destroydragicon(struct wl_listener *listener, void *data) {
	/* Focus enter isn't sent during drag, so refocus the focused node. */
	focusclient(focustop(selmon), 1);
	motionnotify(0, NULL, 0, 0, 0, 0);
	wl_list_remove(&listener->link);
	free(listener);
}

void destroyidleinhibitor(struct wl_listener *listener, void *data) {
	/* `data` is the wlr_surface of the idle inhibitor being destroyed,
	 * at this point the idle inhibitor is still in the list of the manager
	 */
	checkidleinhibitor(wlr_surface_get_root_surface(data));
	wl_list_remove(&listener->link);
	free(listener);
}

void destroylayernodenotify(struct wl_listener *listener, void *data) {
	LayerSurface *l = wl_container_of(listener, l, destroy);

	wl_list_remove(&l->link);
	wl_list_remove(&l->destroy.link);
	wl_list_remove(&l->map.link);
	wl_list_remove(&l->unmap.link);
	wl_list_remove(&l->surface_commit.link);
	wlr_scene_node_destroy(&l->popups->node);
	free(l);
}

void destroylock(SessionLock *lock, int32_t unlock) {
	wlr_seat_keyboard_notify_clear_focus(seat);
	if ((locked = !unlock))
		goto destroy;

	if (locked_bg->node.enabled) {
		wlr_scene_node_set_enabled(&locked_bg->node, false);
	}

	focusclient(focustop(selmon), 0);
	motionnotify(0, NULL, 0, 0, 0, 0);

destroy:
	wl_list_remove(&lock->new_surface.link);
	wl_list_remove(&lock->unlock.link);
	wl_list_remove(&lock->destroy.link);

	wlr_scene_node_destroy(&lock->scene->node);
	cur_lock = NULL;
	free(lock);
}

void destroylocksurface(struct wl_listener *listener, void *data) {
	Monitor *m = wl_container_of(listener, m, destroy_lock_surface);
	struct wlr_session_lock_surface_v1 *surface,
		*lock_surface = m->lock_surface;

	m->lock_surface = NULL;
	wl_list_remove(&m->destroy_lock_surface.link);

	if (lock_surface->surface != seat->keyboard_state.focused_surface) {
		if (exclusive_focus && !locked) {
			reset_exclusive_layers_focus(m);
		}
		return;
	}

	if (locked && cur_lock && !wl_list_empty(&cur_lock->surfaces)) {
		surface = wl_container_of(cur_lock->surfaces.next, surface, link);
		client_notify_enter(surface->surface, wlr_seat_get_keyboard(seat));
	} else if (!locked) {
		reset_exclusive_layers_focus(selmon);
	} else {
		wlr_seat_keyboard_clear_focus(seat);
	}
}

void // 0.7 custom
destroynotify(struct wl_listener *listener, void *data) {
	/* Called when the xdg_toplevel is destroyed. */
	Client *c = wl_container_of(listener, c, destroy);
	wl_list_remove(&c->destroy.link);
	wl_list_remove(&c->set_title.link);
	wl_list_remove(&c->fullscreen.link);
	wl_list_remove(&c->maximize.link);
	wl_list_remove(&c->minimize.link);
#ifdef XWAYLAND
	if (c->type != XDGShell) {
		wl_list_remove(&c->activate.link);
		wl_list_remove(&c->associate.link);
		wl_list_remove(&c->configure.link);
		wl_list_remove(&c->dissociate.link);
		wl_list_remove(&c->set_hints.link);
	} else
#endif
	{
		wl_list_remove(&c->commit.link);
		wl_list_remove(&c->map.link);
		wl_list_remove(&c->unmap.link);
	}
	free(c);
}

void destroypointerconstraint(struct wl_listener *listener, void *data) {
	PointerConstraint *pointer_constraint =
		wl_container_of(listener, pointer_constraint, destroy);

	if (active_constraint == pointer_constraint->constraint) {
		cursorwarptohint();
		active_constraint = NULL;
	}

	wl_list_remove(&pointer_constraint->destroy.link);
	free(pointer_constraint);
}

void destroysessionlock(struct wl_listener *listener, void *data) {
	SessionLock *lock = wl_container_of(listener, lock, destroy);
	destroylock(lock, 0);
}

void destroykeyboardgroup(struct wl_listener *listener, void *data) {
	KeyboardGroup *group = wl_container_of(listener, group, destroy);
	wl_event_source_remove(group->key_repeat_source);
	wl_list_remove(&group->key.link);
	wl_list_remove(&group->modifiers.link);
	wl_list_remove(&group->destroy.link);
	wlr_keyboard_group_destroy(group->wlr_group);
	free(group);
}

void focusclient(Client *c, int32_t lift) {

	Client *last_focus_client = NULL;
	Monitor *um = NULL;

	struct wlr_surface *old_keyboard_focus_surface =
		seat->keyboard_state.focused_surface;

	if (locked)
		return;

	if (c && c->iskilling)
		return;

	if (c && !client_surface(c)->mapped)
		return;

	if (c && client_should_ignore_focus(c) && client_is_x11_popup(c))
		return;

	if (c && c->nofocus)
		return;

	/* Raise client in stacking order if requested */
	if (c && lift)
		wlr_scene_node_raise_to_top(&c->scene->node); // 将视图提升到顶层

	if (c && client_surface(c) == old_keyboard_focus_surface && selmon &&
		selmon->sel)
		return;

	if (selmon && selmon->sel && selmon->sel != c &&
		selmon->sel->foreign_toplevel) {
		wlr_foreign_toplevel_handle_v1_set_activated(
			selmon->sel->foreign_toplevel, false);
	}

	if (c && !c->iskilling && !client_is_unmanaged(c) && c->mon) {

		last_focus_client = selmon->sel;
		selmon = c->mon;
		selmon->prevsel = selmon->sel;
		selmon->sel = c;
		c->isfocusing = true;

		check_keep_idle_inhibit(c);

		if (last_focus_client && !last_focus_client->iskilling &&
			last_focus_client != c) {
			last_focus_client->isfocusing = false;
			client_set_unfocused_opacity_animation(last_focus_client);
		}

		client_set_focused_opacity_animation(c);

		// decide whether need to re-arrange

		if (c && selmon->prevsel &&
			(selmon->prevsel->tags & selmon->tagset[selmon->seltags]) &&
			(c->tags & selmon->tagset[selmon->seltags]) && !c->isfloating &&
			is_scroller_layout(selmon)) {
			arrange(selmon, false, false);
		}

		// change focus link position
		wl_list_remove(&c->flink);
		wl_list_insert(&fstack, &c->flink);

		// change border color
		c->isurgent = 0;
	}

	// update other monitor focus disappear
	wl_list_for_each(um, &mons, link) {
		if (um->wlr_output->enabled && um != selmon && um->sel &&
			!um->sel->iskilling && um->sel->isfocusing) {

			um->sel->isfocusing = false;
			client_set_unfocused_opacity_animation(um->sel);

			if (um->sel->foreign_toplevel) {
				wlr_foreign_toplevel_handle_v1_set_activated(
					um->sel->foreign_toplevel, false);
			}
		}
	}

	if (c && !c->iskilling && c->foreign_toplevel)
		wlr_foreign_toplevel_handle_v1_set_activated(c->foreign_toplevel, true);

	/* Deactivate old client if focus is changing */
	if (old_keyboard_focus_surface &&
		(!c || client_surface(c) != old_keyboard_focus_surface)) {
		/* If an exclusive_focus layer is focused, don't focus or activate
		 * the client, but only update its position in fstack to render its
		 * border with focuscolor and focus it after the exclusive_focus
		 * layer is closed. */
		Client *w = NULL;
		LayerSurface *l = NULL;
		int32_t type =
			toplevel_from_wlr_surface(old_keyboard_focus_surface, &w, &l);
		if (type == LayerShell && l->scene->node.enabled &&
			l->layer_surface->current.layer >= ZWLR_LAYER_SHELL_V1_LAYER_TOP &&
			l == exclusive_focus) {
			return;
		} else if (w && w == exclusive_focus && client_wants_focus(w)) {
			return;
			/* Don't deactivate old_keyboard_focus_surface client if the new
			 * one wants focus, as this causes issues with winecfg and
			 * probably other clients */
		} else if (w && !client_is_unmanaged(w) &&
				   (!c || !client_wants_focus(c))) {
			client_activate_surface(old_keyboard_focus_surface, 0);
		}
	}
	printstatus(IPC_WATCH_ARRANGGE);

	if (!c) {

		if (selmon && selmon->sel &&
			(!VISIBLEON(selmon->sel, selmon) || selmon->sel->iskilling ||
			 !client_surface(selmon->sel)->mapped))
			selmon->sel = NULL;

		// clear text input focus state
		dwl_im_relay_set_focus(dwl_input_method_relay, NULL);
		wlr_seat_keyboard_notify_clear_focus(seat);
		if (active_constraint) {
			cursorconstrain(NULL);
		}
		return;
	}

	/* Change cursor surface */
	motionnotify(0, NULL, 0, 0, 0, 0);

	// set text input focus
	// must before client_notify_enter,
	// otherwise the position of text_input will be wrong.
	dwl_im_relay_set_focus(dwl_input_method_relay, client_surface(c));

	/* Have a client, so focus its top-level wlr_surface */
	client_notify_enter(client_surface(c), wlr_seat_get_keyboard(seat));

	/* Activate the new client */
	client_activate_surface(client_surface(c), 1);

	if (active_constraint && active_constraint->surface != client_surface(c)) {
		cursorconstrain(NULL);
	}

	struct wlr_pointer_constraint_v1 *constraint;
	wl_list_for_each(constraint, &pointer_constraints->constraints, link) {
		if (constraint->surface == client_surface(c)) {
			cursorconstrain(constraint);
			break;
		}
	}
}

void // 0.6
fullscreennotify(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, fullscreen);

	if (!c || c->iskilling)
		return;

	setfullscreen(c, client_wants_fullscreen(c), true);
}

void requestmonstate(struct wl_listener *listener, void *data) {
	/* This ensures nested backends can be resized */
	Monitor *m = wl_container_of(listener, m, request_state);
	const struct wlr_output_event_request_state *event = data;

	if (event->state->committed == WLR_OUTPUT_STATE_MODE) {
		switch (event->state->mode_type) {
		case WLR_OUTPUT_STATE_MODE_FIXED:
			wlr_output_state_set_mode(&m->pending, event->state->mode);
			break;
		case WLR_OUTPUT_STATE_MODE_CUSTOM:
			wlr_output_state_set_custom_mode(&m->pending,
											 event->state->custom_mode.width,
											 event->state->custom_mode.height,
											 event->state->custom_mode.refresh);
			break;
		}
		updatemons(NULL, NULL);
		wlr_output_schedule_frame(m->wlr_output);
		return;
	}

	if (!wlr_output_commit_state(m->wlr_output, event->state)) {
		wlr_log(WLR_ERROR,
				"Backend requested a new state that could not be applied");
	}
}

void inputdevice(struct wl_listener *listener, void *data) {
	/* This event is raised by the backend when a new input device becomes
	 * available.
	 * when the backend is a headless backend, this event will never be
	 * triggered.
	 */
	struct wlr_input_device *device = data;
	uint32_t caps;

	switch (device->type) {
	case WLR_INPUT_DEVICE_KEYBOARD:
		createkeyboard(wlr_keyboard_from_input_device(device));
		break;
	case WLR_INPUT_DEVICE_TABLET:
		createtablet(device);
		break;
	case WLR_INPUT_DEVICE_TABLET_PAD:
		createtabletpad(device);
		break;
	case WLR_INPUT_DEVICE_POINTER:
		createpointer(wlr_pointer_from_input_device(device));
		break;
	case WLR_INPUT_DEVICE_SWITCH:
		createswitch(wlr_switch_from_input_device(device));
		break;
	default:
		/* TODO handle other input device types */
		break;
	}

	/* We need to let the wlr_seat know what our capabilities are, which is
	 * communiciated to the client. In dwl we always have a cursor, even if
	 * there are no pointer devices, so we always include that capability.
	 */
	/* TODO do we actually require a cursor? */
	caps = WL_SEAT_CAPABILITY_POINTER;
	if (!wl_list_empty(&kb_group->wlr_group->devices))
		caps |= WL_SEAT_CAPABILITY_KEYBOARD;
	wlr_seat_set_capabilities(seat, caps);
}

int32_t keyrepeat(void *data) {
	KeyboardGroup *group = data;
	int32_t i;
	if (!group->nsyms || group->wlr_group->keyboard.repeat_info.rate <= 0)
		return 0;

	wl_event_source_timer_update(
		group->key_repeat_source,
		1000 / group->wlr_group->keyboard.repeat_info.rate);

	for (i = 0; i < group->nsyms; i++)
		keybinding(WL_KEYBOARD_KEY_STATE_PRESSED, false, group->mods,
				   group->keysyms[i], group->keycode);

	return 0;
}

bool is_keyboard_shortcut_inhibitor(struct wlr_surface *surface) {
	KeyboardShortcutsInhibitor *kbsinhibitor;

	wl_list_for_each(kbsinhibitor, &keyboard_shortcut_inhibitors, link) {
		if (kbsinhibitor->inhibitor->surface == surface) {
			return true;
		}
	}
	return false;
}

int32_t // 17
keybinding(uint32_t state, bool locked, uint32_t mods, xkb_keysym_t sym,
		   uint32_t keycode) {
	/*
	 * Here we handle compositor keybindings. This is when the compositor is
	 * processing keys, rather than passing them on to the client for its
	 * own processing.
	 */
	int32_t handled = 0;
	const KeyBinding *k;
	int32_t ji;
	int32_t isbreak = 0;

	if (is_keyboard_shortcut_inhibitor(seat->keyboard_state.focused_surface)) {
		return false;
	}

	for (ji = 0; ji < config.key_bindings_count; ji++) {
		if (config.key_bindings_count < 1)
			break;

		if (locked && config.key_bindings[ji].islockapply == false)
			continue;

		if (state == WL_KEYBOARD_KEY_STATE_RELEASED &&
			config.key_bindings[ji].isreleaseapply == false)
			continue;

		if (state == WL_KEYBOARD_KEY_STATE_PRESSED &&
			config.key_bindings[ji].isreleaseapply == true)
			continue;

		if (state != WL_KEYBOARD_KEY_STATE_PRESSED &&
			state != WL_KEYBOARD_KEY_STATE_RELEASED)
			continue;

		k = &config.key_bindings[ji];
		if ((k->iscommonmode || (k->isdefaultmode && keymode.isdefault) ||
			 (strcmp(keymode.mode, k->mode) == 0)) &&
			CLEANMASK(mods) == CLEANMASK(k->mod) &&
			((k->keysymcode.type == KEY_TYPE_SYM &&
			  xkb_keysym_to_lower(sym) ==
				  xkb_keysym_to_lower(k->keysymcode.keysym)) ||
			 (k->keysymcode.type == KEY_TYPE_CODE &&
			  (keycode == k->keysymcode.keycode.keycode1 ||
			   keycode == k->keysymcode.keycode.keycode2 ||
			   keycode == k->keysymcode.keycode.keycode3))) &&
			k->func) {

			if (!k->ispassapply)
				handled = 1;
			else
				handled = 0;

			isbreak = k->func(&k->arg);

			if (isbreak)
				break;
		}
	}
	return handled;
}

bool keypressglobal(struct wlr_surface *last_surface,
					struct wlr_keyboard *keyboard,
					struct wlr_keyboard_key_event *event, uint32_t mods,
					xkb_keysym_t keysym, uint32_t keycode) {
	Client *c = NULL, *lastc = focustop(selmon);
	uint32_t keycodes[32] = {0};
	int32_t reset = false;
	const char *appid = NULL;
	const char *title = NULL;
	int32_t ji;
	const ConfigWinRule *r;

	for (ji = 0; ji < config.window_rules_count; ji++) {
		if (config.window_rules_count < 1)
			break;
		r = &config.window_rules[ji];

		if (!r->globalkeybinding.mod ||
			(!r->globalkeybinding.keysymcode.keysym &&
			 !r->globalkeybinding.keysymcode.keycode.keycode1 &&
			 !r->globalkeybinding.keysymcode.keycode.keycode2 &&
			 !r->globalkeybinding.keysymcode.keycode.keycode3))
			continue;

		/* match key only (case insensitive) ignoring mods */
		if (((r->globalkeybinding.keysymcode.type == KEY_TYPE_SYM &&
			  r->globalkeybinding.keysymcode.keysym == keysym) ||
			 (r->globalkeybinding.keysymcode.type == KEY_TYPE_CODE &&
			  (r->globalkeybinding.keysymcode.keycode.keycode1 == keycode ||
			   r->globalkeybinding.keysymcode.keycode.keycode2 == keycode ||
			   r->globalkeybinding.keysymcode.keycode.keycode3 == keycode))) &&
			r->globalkeybinding.mod == mods) {
			wl_list_for_each(c, &clients, link) {
				if (c && c != lastc) {
					appid = client_get_appid(c);
					title = client_get_title(c);

					if ((r->title && regex_match(r->title, title) && !r->id) ||
						(r->id && regex_match(r->id, appid) && !r->title) ||
						(r->id && regex_match(r->id, appid) && r->title &&
						 regex_match(r->title, title))) {
						reset = true;
						wlr_seat_keyboard_enter(seat, client_surface(c),
												keycodes, 0,
												&keyboard->modifiers);
						wlr_seat_keyboard_send_key(seat, event->time_msec,
												   event->keycode,
												   event->state);
						goto done;
					}
				}
			}
		}
	}

done:
	if (reset)
		wlr_seat_keyboard_enter(seat, last_surface, keycodes, 0,
								&keyboard->modifiers);
	return reset;
}

void keypress(struct wl_listener *listener, void *data) {
	int32_t i;
	/* This event is raised when a key is pressed or released. */
	KeyboardGroup *group = wl_container_of(listener, group, key);
	struct wlr_keyboard_key_event *event = data;

	struct wlr_surface *last_surface = seat->keyboard_state.focused_surface;
	struct wlr_xdg_surface *xdg_surface =
		last_surface ? wlr_xdg_surface_try_from_wlr_surface(last_surface)
					 : NULL;
	int32_t pass = 0;
	bool hit_global = false;
#ifdef XWAYLAND
	struct wlr_xwayland_surface *xsurface =
		last_surface ? wlr_xwayland_surface_try_from_wlr_surface(last_surface)
					 : NULL;
#endif

	/* Translate libinput keycode -> xkbcommon */
	uint32_t keycode = event->keycode + 8;
	/* Get a list of keysyms based on the keymap for this keyboard */
	const xkb_keysym_t *syms;
	int32_t nsyms = xkb_state_key_get_syms(group->wlr_group->keyboard.xkb_state,
										   keycode, &syms);

	int32_t handled = 0;
	uint32_t mods = wlr_keyboard_get_modifiers(&group->wlr_group->keyboard);

	wlr_idle_notifier_v1_notify_activity(idle_notifier, seat);

	// ov tab mode detect moe key release
	if (config.ov_tab_mode && !locked && group == kb_group &&
		event->state == WL_KEYBOARD_KEY_STATE_RELEASED &&
		(keycode == 133 || keycode == 37 || keycode == 64 || keycode == 50 ||
		 keycode == 134 || keycode == 105 || keycode == 108 || keycode == 62) &&
		selmon && selmon->sel) {
		if (selmon->isoverview && selmon->sel) {
			toggleoverview(&(Arg){.i = 1});
		}
	}

	if (config.cursor_hide_on_keypress && !cursor_hidden &&
		event->state == WL_KEYBOARD_KEY_STATE_PRESSED) {
		hidecursor(NULL);
	}

	/* On _press_ if there is no active screen locker,
	 * attempt to process a compositor keybinding. */
	for (i = 0; i < nsyms; i++)
		handled =
			keybinding(event->state, locked, mods, syms[i], keycode) || handled;

	if (event->state == WL_KEYBOARD_KEY_STATE_RELEASED) {
		tag_combo = false;
	}

	if (handled && group->wlr_group->keyboard.repeat_info.delay > 0) {
		group->mods = mods;
		group->keysyms = syms;
		group->keycode = keycode;
		group->nsyms = nsyms;
		wl_event_source_timer_update(
			group->key_repeat_source,
			group->wlr_group->keyboard.repeat_info.delay);
	} else {
		group->nsyms = 0;
		wl_event_source_timer_update(group->key_repeat_source, 0);
	}

	if (handled)
		return;

	/* don't pass when popup is focused
	 * this is better than having popups (like fuzzel or wmenu) closing
	 * while typing in a passed keybind */
	pass = (xdg_surface && xdg_surface->role != WLR_XDG_SURFACE_ROLE_POPUP) ||
		   !last_surface
#ifdef XWAYLAND
		   || xsurface
#endif
		;
	/* passed keys don't get repeated */
	if (pass && syms)
		hit_global = keypressglobal(last_surface, &group->wlr_group->keyboard,
									event, mods, syms[0], keycode);

	if (hit_global) {
		return;
	}
	if (!dwl_im_keyboard_grab_forward_key(group, event)) {
		wlr_seat_set_keyboard(seat, &group->wlr_group->keyboard);
		/* Pass unhandled keycodes along to the client. */
		wlr_seat_keyboard_notify_key(seat, event->time_msec, event->keycode,
									 event->state);
	}
}

void keypressmod(struct wl_listener *listener, void *data) {
	/* This event is raised when a modifier key, such as shift or alt, is
	 * pressed. We simply communicate this to the client. */
	KeyboardGroup *group = wl_container_of(listener, group, modifiers);

	if (!dwl_im_keyboard_grab_forward_modifiers(group)) {

		wlr_seat_set_keyboard(seat, &group->wlr_group->keyboard);
		/* Send modifiers to the client. */
		wlr_seat_keyboard_notify_modifiers(
			seat, &group->wlr_group->keyboard.modifiers);
	}

	xkb_layout_index_t current = xkb_state_serialize_layout(
		group->wlr_group->keyboard.xkb_state, XKB_STATE_LAYOUT_EFFECTIVE);

	if (current != group->layout_index) {
		group->layout_index = current;
		printstatus(IPC_WATCH_KB_LAYOUT);
	}
}

void pending_kill_client(Client *c) {
	if (!c || c->iskilling)
		return;
	client_send_close(c);
}

void locksession(struct wl_listener *listener, void *data) {
	struct wlr_session_lock_v1 *session_lock = data;
	SessionLock *lock;
	if (!config.allow_lock_transparent) {
		wlr_scene_node_set_enabled(&locked_bg->node, true);
	}
	if (cur_lock) {
		wlr_session_lock_v1_destroy(session_lock);
		return;
	}
	lock = session_lock->data = ecalloc(1, sizeof(*lock));
	focusclient(NULL, 0);

	lock->scene = wlr_scene_tree_create(layers[LyrBlock]);
	cur_lock = lock->lock = session_lock;
	locked = 1;

	LISTEN(&session_lock->events.new_surface, &lock->new_surface,
		   createlocksurface);
	LISTEN(&session_lock->events.destroy, &lock->destroy, destroysessionlock);
	LISTEN(&session_lock->events.unlock, &lock->unlock, unlocksession);

	wlr_session_lock_v1_send_locked(session_lock);
}

static void iter_xdg_scene_buffers(struct wlr_scene_buffer *buffer, int32_t sx,
								   int32_t sy, void *user_data) {
	Client *c = user_data;

	struct wlr_scene_surface *scene_surface =
		wlr_scene_surface_try_from_buffer(buffer);
	if (!scene_surface) {
		return;
	}

	struct wlr_surface *surface = scene_surface->surface;
	/* we dont blur subsurfaces */
	if (wlr_subsurface_try_from_wlr_surface(surface) != NULL)
		return;

	if (config.blur && c && !c->noblur) {
		wlr_scene_buffer_set_backdrop_blur(buffer, true);
		wlr_scene_buffer_set_backdrop_blur_ignore_transparent(buffer, false);
		if (config.blur_optimized) {
			wlr_scene_buffer_set_backdrop_blur_optimized(buffer, true);
		} else {
			wlr_scene_buffer_set_backdrop_blur_optimized(buffer, false);
		}
	} else {
		wlr_scene_buffer_set_backdrop_blur(buffer, false);
	}
}

void init_client_properties(Client *c) {
	c->grid_col_per = 1.0f;
	c->grid_row_per = 1.0f;
	c->overview_scene_surface = NULL;
	c->drop_direction = UNDIR;
	c->enable_drop_area_draw = false;
	c->isfocusing = false;
	c->isfloating = 0;
	c->isfakefullscreen = 0;
	c->isnoanimation = 0;
	c->isopensilent = 0;
	c->istagsilent = 0;
	c->noswallow = 0;
	c->isterm = 0;
	c->noblur = 0;
	c->tearing_hint = 0;
	c->overview_isfullscreenbak = 0;
	c->overview_ismaximizescreenbak = 0;
	c->overview_isfloatingbak = 0;
	c->pid = 0;
	c->swallowing = NULL;
	c->swallowedby = NULL;
	c->ismaster = 0;
	c->old_ismaster = 0;
	c->isleftstack = 0;
	c->ismaximizescreen = 0;
	c->isfullscreen = 0;
	c->need_float_size_reduce = 0;
	c->iskilling = 0;
	c->istagswitching = 0;
	c->isglobal = 0;
	c->isminimized = 0;
	c->isoverlay = 0;
	c->isunglobal = 0;
	c->is_in_scratchpad = 0;
	c->isnamedscratchpad = 0;
	c->is_scratchpad_show = 0;
	c->need_float_size_reduce = 0;
	c->is_clip_to_hide = 0;
	c->is_restoring_from_ov = 0;
	c->isurgent = 0;
	c->need_output_flush = 0;
	c->scroller_proportion = config.scroller_default_proportion;
	c->is_pending_open_animation = true;
	c->drag_to_tile = false;
	c->scratchpad_switching_mon = false;
	c->fake_no_border = false;
	c->focused_opacity = config.focused_opacity;
	c->unfocused_opacity = config.unfocused_opacity;
	c->nofocus = 0;
	c->nofadein = 0;
	c->nofadeout = 0;
	c->no_force_center = 0;
	c->isnoborder = 0;
	c->isnosizehint = 0;
	c->isnoradius = 0;
	c->isnoshadow = 0;
	c->ignore_maximize = 1;
	c->ignore_minimize = 1;
	c->iscustomsize = 0;
	c->iscustompos = 0;
	c->master_mfact_per = 0.0f;
	c->master_inner_per = 0.0f;
	c->stack_inner_per = 0.0f;
	c->old_stack_inner_per = 0.0f;
	c->old_master_inner_per = 0.0f;
	c->old_master_mfact_per = 0.0f;
	c->isterm = 0;
	c->allow_csd = 0;
	c->force_fakemaximize = 0;
	c->force_tiled_state = 1;
	c->force_tearing = 0;
	c->allow_shortcuts_inhibit = SHORTCUTS_INHIBIT_ENABLE;
	c->idleinhibit_when_focus = 0;
	c->scroller_proportion_single = 0.0f;
	c->float_geom.width = 0;
	c->float_geom.height = 0;
	c->float_geom.x = 0;
	c->float_geom.y = 0;
	c->stack_proportion = 0.0f;
	memset(c->oldmonname, 0, sizeof(c->oldmonname));
	memcpy(c->opacity_animation.initial_border_color, config.bordercolor,
		   sizeof(c->opacity_animation.initial_border_color));
	memcpy(c->opacity_animation.current_border_color, config.bordercolor,
		   sizeof(c->opacity_animation.current_border_color));
	c->opacity_animation.initial_opacity = c->unfocused_opacity;
	c->opacity_animation.current_opacity = c->unfocused_opacity;
}

void // old fix to 0.5
mapnotify(struct wl_listener *listener, void *data) {
	/* Called when the surface is mapped, or ready to display on-screen. */
	Client *at_client = NULL;
	Client *c = wl_container_of(listener, c, map);
	int32_t i = 0;

	c->id = generate_client_id();

	/* Create scene tree for this client and its border */
	c->scene = client_surface(c)->data = wlr_scene_tree_create(layers[LyrTile]);
	wlr_scene_node_set_enabled(&c->scene->node, c->type != XDGShell);
	c->scene_surface =
		c->type == XDGShell
			? wlr_scene_xdg_surface_create(c->scene, c->surface.xdg)
			: wlr_scene_subsurface_tree_create(c->scene, client_surface(c));
	c->scene->node.data = c->scene_surface->node.data = c;

	client_get_geometry(c, &c->geom);

	if (client_is_x11(c))
		init_client_properties(c);

	// set special window properties
	if (client_is_unmanaged(c) || client_is_x11_popup(c)) {
		c->bw = 0;
		c->isnoborder = 1;
	} else {
		c->bw = config.borderpx;
	}

	if (client_should_global(c)) {
		c->isunglobal = 1;
	}

	// init client geom
	c->geom.width += 2 * c->bw;
	c->geom.height += 2 * c->bw;
	c->overview_backup_geom = c->geom;

	/* Handle unmanaged clients first so we can return prior create borders
	 */
#ifdef XWAYLAND
	if (client_is_unmanaged(c)) {
		/* Unmanaged clients always are floating */
		fix_xwayland_coordinate(&c->geom);
		wlr_scene_node_set_position(&c->scene->node, c->geom.x, c->geom.y);
		wlr_xwayland_surface_configure(c->surface.xwayland, c->geom.x,
									   c->geom.y, c->geom.width,
									   c->geom.height);
		LISTEN(&c->surface.xwayland->events.set_geometry, &c->set_geometry,
			   setgeometrynotify);
		wlr_scene_node_reparent(&c->scene->node, layers[LyrOverlay]);
		if (client_wants_focus(c)) {
			focusclient(c, 1);
			exclusive_focus = c;
		}
		return;
	}
#endif
	// extra node

	for (i = 0; i < 2; i++) {
		c->splitindicator[i] = wlr_scene_rect_create(
			c->scene, 0, 0,
			c->isurgent ? config.urgentcolor : config.splitcolor);
		c->splitindicator[i]->node.data = c;
		wlr_scene_node_lower_to_bottom(&c->splitindicator[i]->node);
		wlr_scene_node_set_enabled(&c->splitindicator[i]->node, false);
	}

	c->droparea = wlr_scene_rect_create(c->scene, 0, 0, config.dropcolor);
	wlr_scene_node_lower_to_bottom(&c->droparea->node);
	wlr_scene_node_set_position(&c->droparea->node, 0, 0);
	wlr_scene_node_set_enabled(&c->droparea->node, false);

	c->border = wlr_scene_rect_create(
		c->scene, 0, 0, c->isurgent ? config.urgentcolor : config.bordercolor);
	wlr_scene_node_lower_to_bottom(&c->border->node);
	wlr_scene_node_set_position(&c->border->node, 0, 0);
	wlr_scene_rect_set_corner_radius(c->border, config.border_radius,
									 config.border_radius_location_default);
	wlr_scene_node_set_enabled(&c->border->node, true);

	c->shadow =
		wlr_scene_shadow_create(c->scene, 0, 0, config.border_radius,
								config.shadows_blur, config.shadowscolor);

	wlr_scene_node_lower_to_bottom(&c->shadow->node);
	wlr_scene_node_set_enabled(&c->shadow->node, true);

	if (config.new_is_master && selmon && !is_scroller_layout(selmon))
		// tile at the top
		wl_list_insert(&clients, &c->link); // 新窗口是master,头部入栈
	else if (selmon && is_scroller_layout(selmon) &&
			 selmon->visible_scroll_tiling_clients > 0) {

		if (selmon->sel && ISSCROLLTILED(selmon->sel) &&
			VISIBLEON(selmon->sel, selmon)) {
			at_client = scroll_get_stack_tail_client(selmon->sel);
		} else {
			at_client = center_tiled_select(selmon);
		}

		if (at_client) {
			wl_list_insert(&at_client->link, &c->link);
		} else {
			wl_list_insert(clients.prev, &c->link); // 尾部入栈
		}
	} else
		wl_list_insert(clients.prev, &c->link); // 尾部入栈

	wl_list_insert(&fstack, &c->flink);

	applyrules(c);

	if (!c->isfloating || c->force_tiled_state) {
		client_set_tiled(c, WLR_EDGE_TOP | WLR_EDGE_BOTTOM | WLR_EDGE_LEFT |
								WLR_EDGE_RIGHT);
	}

	// apply buffer effects of client
	wlr_scene_node_for_each_buffer(&c->scene_surface->node,
								   iter_xdg_scene_buffers, c);
	wlr_scene_node_set_position(&c->scene_surface->node, c->bw, c->bw);

	// set border color
	setborder_color(c);

	if (c->mon && c->mon->isoverview && config.ov_no_resize) {
		overview_backup_surface(c);
	}

	// make sure the animation is open type
	c->is_pending_open_animation = true;
	resize(c, c->geom, 0);
	printstatus(IPC_WATCH_ARRANGGE);
}

void maximizenotify(struct wl_listener *listener, void *data) {

	Client *c = wl_container_of(listener, c, maximize);

	if (!c || !c->mon || c->iskilling || c->ignore_maximize)
		return;

	if (!client_is_x11(c) && !c->surface.xdg->initialized) {
		return;
	}

	if (client_request_maximize(c, data)) {
		setmaximizescreen(c, 1, true);
	} else {
		setmaximizescreen(c, 0, true);
	}
}

void unminimize(Client *c) {
	if (c && c->is_in_scratchpad && c->is_scratchpad_show) {
		client_pending_minimized_state(c, 0);
		c->is_scratchpad_show = 0;
		c->is_in_scratchpad = 0;
		c->isnamedscratchpad = 0;
		setborder_color(c);
		return;
	}

	if (c && c->isminimized) {
		show_hide_client(c);
		c->is_scratchpad_show = 0;
		c->is_in_scratchpad = 0;
		c->isnamedscratchpad = 0;
		setborder_color(c);
		arrange(c->mon, false, false);
		return;
	}
}

void set_minimized(Client *c) {

	if (!c || !c->mon)
		return;

	c->isglobal = 0;
	c->oldtags = c->mon->tagset[c->mon->seltags];
	c->mini_restore_tag = c->tags;
	c->tags = 0;
	client_pending_minimized_state(c, 1);
	c->is_in_scratchpad = 1;
	c->is_scratchpad_show = 0;
	focusclient(focustop(selmon), 1);
	arrange(c->mon, false, false);

	if (c->foreign_toplevel)
		wlr_foreign_toplevel_handle_v1_set_activated(c->foreign_toplevel,
													 false);

	wl_list_remove(&c->link);				// 从原来位置移除
	wl_list_insert(clients.prev, &c->link); // 插入尾部
}

void minimizenotify(struct wl_listener *listener, void *data) {

	Client *c = wl_container_of(listener, c, minimize);

	if (!c || !c->mon || c->iskilling || c->isminimized)
		return;

	if (client_request_minimize(c, data) && !c->ignore_minimize) {
		if (!c->isminimized)
			set_minimized(c);
		client_set_minimized(c, true);
	} else {
		if (c->isminimized)
			unminimize(c);
		client_set_minimized(c, false);
	}
}

void motionabsolute(struct wl_listener *listener, void *data) {
	/* This event is forwarded by the cursor when a pointer emits an
	 * _absolute_ motion event, from 0..1 on each axis. This happens, for
	 * example, when wlroots is running under a Wayland window rather than
	 * KMS+DRM, and you move the mouse over the window. You could enter the
	 * window from any edge, so we have to warp the mouse there. There is
	 * also some hardware which emits these events. */
	struct wlr_pointer_motion_absolute_event *event = data;
	double lx, ly, dx, dy;

	if (check_trackpad_disabled(event->pointer)) {
		return;
	}

	if (!event->time_msec) /* this is 0 with virtual pointer */
		wlr_cursor_warp_absolute(cursor, &event->pointer->base, event->x,
								 event->y);

	wlr_cursor_absolute_to_layout_coords(cursor, &event->pointer->base,
										 event->x, event->y, &lx, &ly);
	dx = lx - cursor->x;
	dy = ly - cursor->y;
	motionnotify(event->time_msec, &event->pointer->base, dx, dy, dx, dy);
}

void resize_floating_window(Client *grabc) {
	int cdx = (int)round(cursor->x) - grabcx;
	int cdy = (int)round(cursor->y) - grabcy;

	cdx = !(rzcorner & 1) && grabc->geom.width - 2 * (int)grabc->bw - cdx < 1
			  ? 0
			  : cdx;
	cdy = !(rzcorner & 2) && grabc->geom.height - 2 * (int)grabc->bw - cdy < 1
			  ? 0
			  : cdy;

	const struct wlr_box box = {
		.x = grabc->geom.x + (rzcorner & 1 ? 0 : cdx),
		.y = grabc->geom.y + (rzcorner & 2 ? 0 : cdy),
		.width = grabc->geom.width + (rzcorner & 1 ? cdx : -cdx),
		.height = grabc->geom.height + (rzcorner & 2 ? cdy : -cdy)};

	grabc->float_geom = box;

	resize(grabc, box, 1);
	grabcx += cdx;
	grabcy += cdy;
}

void motionnotify(uint32_t time, struct wlr_input_device *device, double dx,
				  double dy, double dx_unaccel, double dy_unaccel) {
	double sx = 0, sy = 0, sx_confined, sy_confined;
	Client *c = NULL, *w = NULL;
	Client *closet_drop_client = NULL;
	LayerSurface *l = NULL;
	struct wlr_surface *surface = NULL;
	bool should_lock = false;

	/* time is 0 in internal calls meant to restore pointer focus. */
	if (time) {
		wlr_relative_pointer_manager_v1_send_relative_motion(
			relative_pointer_mgr, seat, (uint64_t)time * 1000, dx, dy,
			dx_unaccel, dy_unaccel);

		if (active_constraint && cursor_mode != CurResize &&
			cursor_mode != CurMove) {
			if (active_constraint->surface ==
				seat->pointer_state.focused_surface) {

				if (active_constraint->type == WLR_POINTER_CONSTRAINT_V1_LOCKED)
					return;

				toplevel_from_wlr_surface(active_constraint->surface, &c, NULL);
				if (c) {
					sx = cursor->x - c->geom.x - c->bw;
					sy = cursor->y - c->geom.y - c->bw;
					if (wlr_region_confine(&active_constraint->region, sx, sy,
										   sx + dx, sy + dy, &sx_confined,
										   &sy_confined)) {
						dx = sx_confined - sx;
						dy = sy_confined - sy;
					}
				}
			}
		}

		wlr_cursor_move(cursor, device, dx, dy);
		handlecursoractivity();
		wlr_idle_notifier_v1_notify_activity(idle_notifier, seat);

		/* Update selmon (even while dragging a window) */
		if (config.sloppyfocus)
			selmon = xytomon(cursor->x, cursor->y);
	}

	/* Find the client under the pointer and send the event along. */
	xytonode(cursor->x, cursor->y, &surface, &c, NULL, &sx, &sy);

	if (cursor_mode == CurPressed && !seat->drag &&
		surface != seat->pointer_state.focused_surface &&
		toplevel_from_wlr_surface(seat->pointer_state.focused_surface, &w,
								  &l) >= 0) {
		c = w;
		surface = seat->pointer_state.focused_surface;
		sx = cursor->x - (l ? l->scene->node.x : w->geom.x);
		sy = cursor->y - (l ? l->scene->node.y : w->geom.y);
	}

	/* Update drag icon's position */
	wlr_scene_node_set_position(&drag_icon->node, (int32_t)round(cursor->x),
								(int32_t)round(cursor->y));

	/* If we are currently grabbing the mouse, handle and return */
	if (cursor_mode == CurMove) {
		/* Move the grabbed client to the new position. */
		grabc->iscustomsize = 1;
		grabc->float_geom =
			(struct wlr_box){.x = (int32_t)round(cursor->x) - grabcx,
							 .y = (int32_t)round(cursor->y) - grabcy,
							 .width = grabc->geom.width,
							 .height = grabc->geom.height};
		if (config.drag_tile_to_tile && grabc->drag_to_tile) {
			closet_drop_client = find_closest_tiled_client(grabc);
			if (closet_drop_client && dropc && closet_drop_client != dropc) {
				dropc->enable_drop_area_draw = false;
				client_set_drop_area(dropc);
				dropc = closet_drop_client;
				dropc->enable_drop_area_draw = true;
				client_set_drop_area(dropc);
			} else if (closet_drop_client) {
				dropc = closet_drop_client;
				dropc->enable_drop_area_draw = true;
				client_set_drop_area(dropc);
			} else if (dropc) {
				dropc->enable_drop_area_draw = false;
				client_set_drop_area(dropc);
				dropc = NULL;
			}
		}
		resize(grabc, grabc->float_geom, 1);
		return;
	} else if (cursor_mode == CurResize) {
		if (grabc->isfloating) {
			grabc->iscustomsize = 1;
			if (last_apply_drap_time == 0 ||
				time - last_apply_drap_time >
					config.drag_floating_refresh_interval) {
				resize_floating_window(grabc);
				last_apply_drap_time = time;
			}
			return;
		} else {
			resize_tile_client(grabc, true, 0, 0, time);
		}
	}

	/* If there's no client surface under the cursor, set the cursor image
	 * to a default. This is what makes the cursor image appear when you
	 * move it off of a client or over its border. */
	if (!surface && !seat->drag && !cursor_hidden)
		wlr_cursor_set_xcursor(cursor, cursor_mgr, "default");

	if (c && c->mon && !c->animation.running &&
		(INSIDEMON(c) || !ISSCROLLTILED(c))) {
		scroller_focus_lock = 0;
	}

	should_lock = false;
	double speed = 0.0f;

	if (config.edge_scroller_pointer_focus) {
		speed = sqrt(dx * dx + dy * dy);
	}

	if (!scroller_focus_lock || !(c && c->mon && !INSIDEMON(c))) {
		if (c && c->mon && ISSCROLLTILED(c) && is_scroller_layout(c->mon) &&
			!INSIDEMON(c)) {
			should_lock = true;
		}

		if (!((!config.edge_scroller_pointer_focus ||
			   speed < config.edge_scroller_focus_allow_speed) &&
			  c && c->mon && ISSCROLLTILED(c) && is_scroller_layout(c->mon) &&
			  !INSIDEMON(c))) {
			pointerfocus(c, surface, sx, sy, time);
		}

		if (should_lock && c && c->mon && ISTILED(c) && c == c->mon->sel) {
			scroller_focus_lock = 1;
		}
	}
}

void motionrelative(struct wl_listener *listener, void *data) {
	/* This event is forwarded by the cursor when a pointer emits a
	 * _relative_ pointer motion event (i.e. a delta) */
	struct wlr_pointer_motion_event *event = data;
	/* The cursor doesn't move unless we tell it to. The cursor
	 * automatically handles constraining the motion to the output layout,
	 * as well as any special configuration applied for the specific input
	 * device which generated the event. You can pass NULL for the device if
	 * you want to move the cursor around without any input. */

	if (check_trackpad_disabled(event->pointer)) {
		return;
	}

	motionnotify(event->time_msec, &event->pointer->base, event->delta_x,
				 event->delta_y, event->unaccel_dx, event->unaccel_dy);
	toggle_hotarea(cursor->x, cursor->y);
}

void outputmgrapply(struct wl_listener *listener, void *data) {
	struct wlr_output_configuration_v1 *config = data;
	outputmgrapplyortest(config, 0);
}

void // 0.7 custom
outputmgrapplyortest(struct wlr_output_configuration_v1 *config, int32_t test) {
	/*
	 * Called when a client such as wlr-randr requests a change in output
	 * configuration. This is only one way that the layout can be changed,
	 * so any Monitor information should be updated by updatemons() after an
	 * output_layout.change event, not here.
	 */
	struct wlr_output_configuration_head_v1 *config_head;
	int32_t ok = 1;

	wl_list_for_each(config_head, &config->heads, link) {
		struct wlr_output *wlr_output = config_head->state.output;
		Monitor *m = wlr_output->data;
		struct wlr_output_state state;

		/* Ensure displays previously disabled by
		 * wlr-output-power-management-v1 are properly handled*/
		m->asleep = 0;

		wlr_output_state_init(&state);
		wlr_output_state_set_enabled(&state, config_head->state.enabled);
		if (!config_head->state.enabled)
			goto apply_or_test;

		if (config_head->state.mode)
			wlr_output_state_set_mode(&state, config_head->state.mode);
		else
			wlr_output_state_set_custom_mode(
				&state, config_head->state.custom_mode.width,
				config_head->state.custom_mode.height,
				config_head->state.custom_mode.refresh);

		wlr_output_state_set_transform(&state, config_head->state.transform);
		wlr_output_state_set_scale(&state, config_head->state.scale);
		wlr_output_state_set_adaptive_sync_enabled(
			&state, config_head->state.adaptive_sync_enabled);

	apply_or_test:
		ok &= test ? wlr_output_test_state(wlr_output, &state)
				   : wlr_output_commit_state(wlr_output, &state);

		/* Don't move monitors if position wouldn't change, this to avoid
		 * wlroots marking the output as manually configured.
		 * wlr_output_layout_add does not like disabled outputs */
		if (!test && wlr_output->enabled &&
			(m->m.x != config_head->state.x || m->m.y != config_head->state.y))
			wlr_output_layout_add(output_layout, wlr_output,
								  config_head->state.x, config_head->state.y);

		wlr_output_state_finish(&state);
	}

	if (ok)
		wlr_output_configuration_v1_send_succeeded(config);
	else
		wlr_output_configuration_v1_send_failed(config);
	wlr_output_configuration_v1_destroy(config);

	/* https://codeberg.org/dwl/dwl/issues/577 */
	updatemons(NULL, NULL);
}

void outputmgrtest(struct wl_listener *listener, void *data) {
	struct wlr_output_configuration_v1 *config = data;
	outputmgrapplyortest(config, 1);
}

void pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy,
				  uint32_t time) {
	struct timespec now;

	if (config.sloppyfocus && !start_drag_window && c && time && c->scene &&
		c->scene->node.enabled && !c->animation.tagining &&
		(surface != seat->pointer_state.focused_surface ||
		 (selmon && selmon->isoverview && selmon->sel != c)) &&
		!client_is_unmanaged(c) && VISIBLEON(c, c->mon))
		focusclient(c, 0);

	/* If surface is NULL, clear pointer focus */
	if (!surface) {
		wlr_seat_pointer_notify_clear_focus(seat);
		return;
	}

	if (!time) {
		clock_gettime(CLOCK_MONOTONIC, &now);
		time = now.tv_sec * 1000 + now.tv_nsec / 1000000;
	}

	/* Let the client know that the mouse cursor has entered one
	 * of its surfaces, and make keyboard focus follow if desired.
	 * wlroots makes this a no-op if surface is already focused */

	if (!c || !c->mon || !c->mon->isoverview) {
		// don't let window get pointer focus,
		// avoid game window force grab pointer in overview mode
		wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
	}

	wlr_seat_pointer_notify_motion(seat, time, sx, sy);
}

// 修改printstatus函数，接受掩码参数
void printstatus(enum ipc_watch_type type) {
	wl_signal_emit(&mango_print_status, &type);
}

void powermgrsetmode(struct wl_listener *listener, void *data) {
	struct wlr_output_power_v1_set_mode_event *event = data;
	struct wlr_output_state state = {0};
	Monitor *m = event->output->data;

	if (!m)
		return;

	wlr_output_state_set_enabled(&state, event->mode);
	wlr_output_commit_state(m->wlr_output, &state);

	m->asleep = !event->mode;
	updatemons(NULL, NULL);
}

void quitsignal(int32_t signo) { quit(NULL); }

void scene_buffer_apply_opacity(struct wlr_scene_buffer *buffer, int32_t sx,
								int32_t sy, void *data) {
	wlr_scene_buffer_set_opacity(buffer, *(double *)data);
}

void client_set_opacity(Client *c, double opacity) {
	opacity = CLAMP_FLOAT(opacity, 0.0f, 1.0f);
	wlr_scene_node_for_each_buffer(&c->scene_surface->node,
								   scene_buffer_apply_opacity, &opacity);
}

void monitor_stop_skip_frame_timer(Monitor *m) {
	if (m->skip_frame_timeout)
		wl_event_source_timer_update(m->skip_frame_timeout, 0);
	m->skiping_frame = false;
	m->resizing_count_pending = 0;
	m->resizing_count_current = 0;
}

static int monitor_skip_frame_timeout_callback(void *data) {
	Monitor *m = data;
	Client *c, *tmp;

	wl_list_for_each_safe(c, tmp, &clients, link) { c->configure_serial = 0; }

	monitor_stop_skip_frame_timer(m);
	wlr_output_schedule_frame(m->wlr_output);

	return 1;
}

void monitor_check_skip_frame_timeout(Monitor *m) {
	if (m->skiping_frame &&
		m->resizing_count_pending == m->resizing_count_current) {
		return;
	}

	if (m->skip_frame_timeout) {
		m->resizing_count_current = m->resizing_count_pending;
		m->skiping_frame = true;
		wl_event_source_timer_update(m->skip_frame_timeout, 100); // 100ms
	}
}

void rendermon(struct wl_listener *listener, void *data) {
	Monitor *m = wl_container_of(listener, m, frame);
	Client *c = NULL, *tmp = NULL;
	LayerSurface *l = NULL, *tmpl = NULL;
	int32_t i;
	struct wl_list *layer_list;
	bool frame_allow_tearing = false;
	struct timespec now;
	bool need_more_frames = false;

	if (session && !session->active) {
		return;
	}

	if (!m->wlr_output->enabled || !allow_frame_scheduling)
		return;

	frame_allow_tearing = check_tearing_frame_allow(m);

	// 绘制层和淡出效果
	for (i = 0; i < LENGTH(m->layers); i++) {
		layer_list = &m->layers[i];
		wl_list_for_each_safe(l, tmpl, layer_list, link) {
			need_more_frames = layer_draw_frame(l) || need_more_frames;
		}
	}

	wl_list_for_each_safe(c, tmp, &fadeout_clients, fadeout_link) {
		need_more_frames = client_draw_fadeout_frame(c) || need_more_frames;
	}

	wl_list_for_each_safe(l, tmpl, &fadeout_layers, fadeout_link) {
		need_more_frames = layer_draw_fadeout_frame(l) || need_more_frames;
	}

	// 绘制客户端
	wl_list_for_each(c, &clients, link) {
		need_more_frames = client_draw_frame(c) || need_more_frames;
		if (!config.animations && !grabc && c->configure_serial &&
			client_is_rendered_on_mon(c, m)) {
			monitor_check_skip_frame_timeout(m);
			goto skip;
		}
	}

	if (m->skiping_frame) {
		monitor_stop_skip_frame_timer(m);
	}

	// 只有在需要帧时才构建和提交状态
	if (config.allow_tearing && frame_allow_tearing) {
		apply_tear_state(m);
	} else {
		wlr_scene_output_commit(m->scene_output, NULL);
	}

skip:
	// 发送帧完成通知
	clock_gettime(CLOCK_MONOTONIC, &now);
	wlr_scene_output_send_frame_done(m->scene_output, &now);

	// 如果需要更多帧，确保安排下一帧
	if (need_more_frames && allow_frame_scheduling) {
		request_fresh_all_monitors();
	}
}

void requestdecorationmode(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, set_decoration_mode);
	struct wlr_xdg_toplevel_decoration_v1 *deco = data;

	if (c->surface.xdg->initialized) {
		// 获取客户端请求的模式
		enum wlr_xdg_toplevel_decoration_v1_mode requested_mode =
			deco->requested_mode;

		// 如果客户端没有指定，使用默认模式
		if (!c->allow_csd) {
			requested_mode = WLR_XDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE;
		}

		wlr_xdg_toplevel_decoration_v1_set_mode(c->decoration, requested_mode);
	}
}

static void requestdrmlease(struct wl_listener *listener, void *data) {
	struct wlr_drm_lease_request_v1 *req = data;
	struct wlr_drm_lease_v1 *lease = wlr_drm_lease_request_v1_grant(req);

	if (!lease) {
		wlr_log(WLR_ERROR, "Failed to grant lease request");
		wlr_drm_lease_request_v1_reject(req);
	}
}

void requeststartdrag(struct wl_listener *listener, void *data) {
	struct wlr_seat_request_start_drag_event *event = data;

	if (wlr_seat_validate_pointer_grab_serial(seat, event->origin,
											  event->serial))
		wlr_seat_start_pointer_drag(seat, event->drag, event->serial);
	else
		wlr_data_source_destroy(event->drag->source);
}

void setborder_color(Client *c) {
	if (!c || !c->mon)
		return;

	float *border_color = get_border_color(c);
	memcpy(c->opacity_animation.target_border_color, border_color,
		   sizeof(c->opacity_animation.target_border_color));
	client_set_border_color(c, border_color);
}

void exchange_two_client(Client *c1, Client *c2) {
	if (c1 == NULL || c2 == NULL ||
		(!config.exchange_cross_monitor && c1->mon != c2->mon)) {
		return;
	}

	Monitor *m1 = c1->mon;
	Monitor *m2 = c2->mon;
	const Layout *layout1 = m1->pertag->ltidxs[m1->pertag->curtag];
	const Layout *layout2 = m2->pertag->ltidxs[m2->pertag->curtag];

	if (layout1->id == SCROLLER || layout2->id == SCROLLER ||
		layout1->id == VERTICAL_SCROLLER || layout2->id == VERTICAL_SCROLLER) {
		exchange_two_scroller_clients(c1, c2);
		return;
	}

	if (layout1->id == DWINDLE && layout2->id == DWINDLE) {
		dwindle_swap_clients(c1, c2);
		return;
	}

	client_swap_layout_properties(c1, c2);

	wl_list_swap(&c1->link, &c2->link);

	if (m1 != m2) {
		client_swap_monitors_and_tags(c1, c2);
	}

	finish_exchange_arrange_and_focus(c1, c2, m1, m2);
}

void set_activation_env() {
	if (!getenv("DBUS_SESSION_BUS_ADDRESS")) {
		wlr_log(WLR_INFO, "Not updating dbus execution environment: "
						  "DBUS_SESSION_BUS_ADDRESS not set");
		return;
	}

	wlr_log(WLR_INFO, "Updating dbus execution environment");

	char *env_keys = join_strings(env_vars, " ");

	// first command: dbus-update-activation-environment
	const char *arg1 = env_keys;
	char *cmd1 = string_printf("dbus-update-activation-environment %s", arg1);
	if (!cmd1) {
		wlr_log(WLR_ERROR, "Failed to allocate command string");
		goto cleanup;
	}
	spawn(&(Arg){.v = cmd1});
	free(cmd1);

	// second command: systemctl --user
	const char *action = "import-environment";
	char *cmd2 = string_printf("systemctl --user %s %s", action, env_keys);
	if (!cmd2) {
		wlr_log(WLR_ERROR, "Failed to allocate command string");
		goto cleanup;
	}
	spawn(&(Arg){.v = cmd2});
	free(cmd2);

cleanup:
	free(env_keys);
}

void // 17
run(char *startup_cmd) {

	set_env();

	/* Add a Unix socket to the Wayland display. */
	const char *socket = wl_display_add_socket_auto(dpy);
	if (!socket)
		die("startup: display_add_socket_auto");
	setenv("WAYLAND_DISPLAY", socket, 1);

	/* Start the backend. This will enumerate outputs and inputs, become the
	 * DRM master, etc */
	if (!wlr_backend_start(backend))
		die("startup: backend_start");

	/* Now that the socket exists and the backend is started, run the
	 * startup command */

	if (startup_cmd) {
		int32_t piperw[2];
		if (pipe(piperw) < 0)
			die("startup: pipe:");
		if ((child_pid = fork()) < 0)
			die("startup: fork:");
		if (child_pid == 0) {
			setsid();
			dup2(piperw[0], STDIN_FILENO);
			close(piperw[0]);
			close(piperw[1]);
			execl("/bin/sh", "/bin/sh", "-c", startup_cmd, NULL);
			die("startup: execl:");
		}
		dup2(piperw[1], STDOUT_FILENO);
		close(piperw[1]);
		close(piperw[0]);
	}

	/* Mark stdout as non-blocking to avoid people who does not close stdin
	 * nor consumes it in their startup script getting dwl frozen */
	if (fd_set_nonblock(STDOUT_FILENO) < 0)
		close(STDOUT_FILENO);

	printstatus(IPC_WATCH_ARRANGGE);

	/* At this point the outputs are initialized, choose initial selmon
	 * based on cursor position, and set default cursor image */
	selmon = xytomon(cursor->x, cursor->y);

	/* TODO hack to get cursor to display in its initial location (100, 100)
	 * instead of (0, 0) and then jumping. still may not be fully
	 * initialized, as the image/coordinates are not transformed for the
	 * monitor when displayed here */
	wlr_cursor_warp_closest(cursor, NULL, cursor->x, cursor->y);
	wlr_cursor_set_xcursor(cursor, cursor_mgr, "left_ptr");
	handlecursoractivity();

	set_activation_env();

	run_exec();
	run_exec_once();

	/* Run the Wayland event loop. This does not return until you exit the
	 * compositor. Starting the backend rigged up all of the necessary event
	 * loop configuration to listen to libinput events, DRM events, generate
	 * frame events at the refresh rate, and so on. */

	wl_display_run(dpy);
}

void setcursor(struct wl_listener *listener, void *data) {
	/* This event is raised by the seat when a client provides a cursor
	 * image */
	struct wlr_seat_pointer_request_set_cursor_event *event = data;
	/* If we're "grabbing" the cursor, don't use the client's image, we will
	 * restore it after "grabbing" sending a leave event, followed by a
	 * enter event, which will result in the client requesting set the
	 * cursor surface
	 */
	if (cursor_mode != CurNormal && cursor_mode != CurPressed)
		return;
	/* This can be sent by any client, so we check to make sure this one is
	 * actually has pointer focus first. If so, we can tell the cursor to
	 * use the provided surface as the cursor image. It will set the
	 * hardware cursor on the output that it's currently on and continue to
	 * do so as the cursor moves between outputs. */
	if (event->seat_client == seat->pointer_state.focused_client) {
		/* Clear previous surface destroy listener if any */
		if (last_cursor.surface &&
			last_cursor_surface_destroy_listener.link.prev != NULL)
			wl_list_remove(&last_cursor_surface_destroy_listener.link);

		last_cursor.shape = 0;
		last_cursor.surface = event->surface;
		last_cursor.hotspot_x = event->hotspot_x;
		last_cursor.hotspot_y = event->hotspot_y;

		/* Track surface destruction to avoid dangling pointer */
		if (event->surface)
			wl_signal_add(&event->surface->events.destroy,
						  &last_cursor_surface_destroy_listener);

		if (!cursor_hidden)
			wlr_cursor_set_surface(cursor, event->surface, event->hotspot_x,
								   event->hotspot_y);
	}
}

void // 0.5
setfloating(Client *c, int32_t floating) {

	Client *fc = NULL;
	struct wlr_box target_box;
	int32_t old_floating_state = c->isfloating;
	c->isfloating = floating;
	bool window_size_outofrange = false;

	if (!c || !c->mon || !client_surface(c)->mapped || c->iskilling)
		return;

	target_box = c->geom;

	if (floating == 1 && c != grabc) {

		if (c->isfullscreen) {
			client_pending_fullscreen_state(c, 0);
			client_set_fullscreen(c, 0);
		}

		client_pending_maximized_state(c, 0);
		exit_scroller_stack(c);

		// 重新计算居中的坐标
		if (!client_is_x11(c) && !c->iscustompos)
			target_box =
				setclient_coordinate_center(c, c->mon, target_box, 0, 0);
		else
			target_box = c->geom;

		// restore to the memeroy geom
		if (c->float_geom.width > 0 && c->float_geom.height > 0) {
			if (c->mon &&
				c->float_geom.width >= c->mon->w.width - config.gappoh) {
				c->float_geom.width = c->mon->w.width * 0.9;
				window_size_outofrange = true;
			}
			if (c->mon &&
				c->float_geom.height >= c->mon->w.height - config.gappov) {
				c->float_geom.height = c->mon->w.height * 0.9;
				window_size_outofrange = true;
			}
			if (window_size_outofrange) {
				c->float_geom =
					setclient_coordinate_center(c, c->mon, c->float_geom, 0, 0);
			}
			resize(c, c->float_geom, 0);
		} else {
			resize(c, target_box, 0);
		}

		c->need_float_size_reduce = 0;
	} else if (c->isfloating && c == grabc) {
		c->need_float_size_reduce = 0;
	} else {
		c->need_float_size_reduce = 1;
		c->is_scratchpad_show = 0;
		c->is_in_scratchpad = 0;
		c->isnamedscratchpad = 0;
		// 让当前tag中的全屏窗口退出全屏参与平铺
		wl_list_for_each(fc, &clients,
						 link) if (fc && fc != c && VISIBLEON(fc, c->mon) &&
								   c->tags & fc->tags && ISFULLSCREEN(fc) &&
								   old_floating_state) {
			clear_fullscreen_flag(fc);
		}
	}

	if (c->isoverlay) {
		wlr_scene_node_reparent(&c->scene->node, layers[LyrOverlay]);
	} else if (client_should_overtop(c) && c->isfloating) {
		wlr_scene_node_reparent(&c->scene->node, layers[LyrTop]);
	} else {
		wlr_scene_node_reparent(&c->scene->node,
								layers[c->isfloating ? LyrTop : LyrTile]);
	}

	if (!c->force_fakemaximize)
		client_set_maximized(c, false);

	if (!c->isfloating || c->force_tiled_state) {
		client_set_tiled(c, WLR_EDGE_TOP | WLR_EDGE_BOTTOM | WLR_EDGE_LEFT |
								WLR_EDGE_RIGHT);
	} else {
		client_set_tiled(c, WLR_EDGE_NONE);
	}

	arrange(c->mon, false, false);

	if (!c->isfloating) {
		c->old_master_inner_per = c->master_inner_per;
		c->old_stack_inner_per = c->stack_inner_per;
	}

	setborder_color(c);
	printstatus(IPC_WATCH_ARRANGGE);
}

void reset_maximizescreen_size(Client *c) {
	c->geom.x = c->mon->w.x + config.gappoh;
	c->geom.y = c->mon->w.y + config.gappov;
	c->geom.width = c->mon->w.width - 2 * config.gappoh;
	c->geom.height = c->mon->w.height - 2 * config.gappov;
	resize(c, c->geom, 0);
}

void exit_scroller_stack(Client *c) {
	if (!c || !c->mon)
		return;

	uint32_t tag = c->mon->pertag->curtag;
	struct TagScrollerState *st = c->mon->pertag->scroller_state[tag];
	if (st) {
		struct ScrollerStackNode *n = find_scroller_node(st, c);
		if (n) {
			scroller_node_remove(st, n);
			return; /* 节点已移除，客户端指针已在函数内清空 */
		}
	}
}

void setmaximizescreen(Client *c, int32_t maximizescreen, bool rearrange) {
	struct wlr_box maximizescreen_box;
	if (!c || !c->mon || !client_surface(c)->mapped || c->iskilling)
		return;

	if (c->mon->isoverview)
		return;

	client_pending_maximized_state(c, maximizescreen);

	if (maximizescreen) {

		if (c->isfullscreen) {
			client_pending_fullscreen_state(c, 0);
			client_set_fullscreen(c, 0);
		}

		exit_scroller_stack(c);

		maximizescreen_box.x = c->mon->w.x + config.gappoh;
		maximizescreen_box.y = c->mon->w.y + config.gappov;
		maximizescreen_box.width = c->mon->w.width - 2 * config.gappoh;
		maximizescreen_box.height = c->mon->w.height - 2 * config.gappov;
		wlr_scene_node_raise_to_top(&c->scene->node);
		if (!is_scroller_layout(c->mon) || c->isfloating)
			resize(c, maximizescreen_box, 0);
	} else {
		c->bw = c->isnoborder ? 0 : config.borderpx;
		if (c->isfloating)
			setfloating(c, 1);
	}

	wlr_scene_node_reparent(&c->scene->node,
							layers[c->isfloating ? LyrTop : LyrTile]);

	if (!c->force_fakemaximize && !c->ismaximizescreen) {
		client_set_maximized(c, false);
	} else if (!c->force_fakemaximize && c->ismaximizescreen) {
		client_set_maximized(c, true);
	}

	if (rearrange)
		arrange(c->mon, false, false);
}

void setfakefullscreen(Client *c, int32_t fakefullscreen) {
	c->isfakefullscreen = fakefullscreen;
	if (!c->mon)
		return;

	if (c->isfullscreen)
		setfullscreen(c, 0, true);

	client_set_fullscreen(c, fakefullscreen);
}

void setfullscreen(Client *c, int32_t fullscreen,
				   bool rearrange) // 用自定义全屏代理自带全屏
{

	if (!c || !c->mon || !client_surface(c)->mapped || c->iskilling)
		return;

	if (c->mon->isoverview)
		return;

	c->isfullscreen = fullscreen;

	client_set_fullscreen(c, fullscreen);
	client_pending_fullscreen_state(c, fullscreen);

	if (fullscreen) {

		if (c->ismaximizescreen && !c->force_fakemaximize) {
			client_set_maximized(c, false);
		}

		client_pending_maximized_state(c, 0);

		exit_scroller_stack(c);
		c->isfakefullscreen = 0;

		c->bw = 0;
		wlr_scene_node_raise_to_top(&c->scene->node); // 将视图提升到顶层
		if (!is_scroller_layout(c->mon) || c->isfloating)
			resize(c, c->mon->m, 1);

	} else {
		c->bw = c->isnoborder ? 0 : config.borderpx;
		if (c->isfloating)
			setfloating(c, 1);
	}

	if (c->isoverlay) {
		wlr_scene_node_reparent(&c->scene->node, layers[LyrOverlay]);
	} else if (client_should_overtop(c) && c->isfloating) {
		wlr_scene_node_reparent(&c->scene->node, layers[LyrTop]);
	} else {
		wlr_scene_node_reparent(
			&c->scene->node,
			layers[fullscreen || c->isfloating ? LyrTop : LyrTile]);
	}

	if (rearrange)
		arrange(c->mon, false, false);
}

void setgaps(int32_t oh, int32_t ov, int32_t ih, int32_t iv) {
	selmon->gappoh = MAX(oh, 0);
	selmon->gappov = MAX(ov, 0);
	selmon->gappih = MAX(ih, 0);
	selmon->gappiv = MAX(iv, 0);
	arrange(selmon, false, false);
}

void reset_keyboard_layout(void) {
	if (!kb_group || !kb_group->wlr_group || !seat) {
		wlr_log(WLR_ERROR, "Invalid keyboard group or seat");
		return;
	}

	struct wlr_keyboard *keyboard = &kb_group->wlr_group->keyboard;
	if (!keyboard || !keyboard->keymap) {
		wlr_log(WLR_ERROR, "Invalid keyboard or keymap");
		return;
	}

	// Get current layout
	xkb_layout_index_t current = xkb_state_serialize_layout(
		keyboard->xkb_state, XKB_STATE_LAYOUT_EFFECTIVE);
	const int32_t num_layouts = xkb_keymap_num_layouts(keyboard->keymap);
	if (num_layouts < 1) {
		wlr_log(WLR_INFO, "No layouts available");
		return;
	}

	// Create context
	struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
	if (!context) {
		wlr_log(WLR_ERROR, "Failed to create XKB context");
		return;
	}

	struct xkb_keymap *new_keymap = xkb_keymap_new_from_names(
		context, &config.xkb_rules, XKB_KEYMAP_COMPILE_NO_FLAGS);
	if (!new_keymap) {
		// 理论上这里不应该失败，因为前面已经验证过了
		wlr_log(WLR_ERROR,
				"Unexpected failure to create keymap after validation");
		goto cleanup_context;
	}

	// 验证新keymap是否有布局
	const int32_t new_num_layouts = xkb_keymap_num_layouts(new_keymap);
	if (new_num_layouts < 1) {
		wlr_log(WLR_ERROR, "New keymap has no layouts");
		xkb_keymap_unref(new_keymap);
		goto cleanup_context;
	}

	// 确保当前布局索引在新keymap中有效
	if (current >= new_num_layouts) {
		wlr_log(WLR_INFO,
				"Current layout index %u out of range for new keymap, "
				"resetting to 0",
				current);
		current = 0;
	}

	// Apply the new keymap
	uint32_t depressed = keyboard->modifiers.depressed;
	uint32_t latched = keyboard->modifiers.latched;
	uint32_t locked = keyboard->modifiers.locked;

	wlr_keyboard_set_keymap(keyboard, new_keymap);

	wlr_keyboard_notify_modifiers(keyboard, depressed, latched, locked, 0);
	keyboard->modifiers.group = current; // Keep the same layout index

	// Update seat
	wlr_seat_set_keyboard(seat, keyboard);
	wlr_seat_keyboard_notify_modifiers(seat, &keyboard->modifiers);

	InputDevice *id;
	wl_list_for_each(id, &inputdevices, link) {
		if (id->wlr_device->type != WLR_INPUT_DEVICE_KEYBOARD) {
			continue;
		}

		struct wlr_keyboard *tkb = (struct wlr_keyboard *)id->device_data;

		wlr_keyboard_set_keymap(tkb, keyboard->keymap);
		wlr_keyboard_notify_modifiers(tkb, depressed, latched, locked, 0);
		tkb->modifiers.group = 0;

		// 7. 更新 seat
		wlr_seat_set_keyboard(seat, tkb);
		wlr_seat_keyboard_notify_modifiers(seat, &tkb->modifiers);
	}

	// Cleanup
	xkb_keymap_unref(new_keymap);

cleanup_context:
	xkb_context_unref(context);
}

void setmon(Client *c, Monitor *m, uint32_t newtags, bool focus) {
	Monitor *oldmon = c->mon;

	if (oldmon == m)
		return;

	if (oldmon && oldmon->sel == c) {
		oldmon->sel = NULL;
	}

	if (oldmon && oldmon->prevsel == c) {
		oldmon->prevsel = NULL;
	}

	c->mon = m;

	/* Scene graph sends surface leave/enter events on move and resize */
	if (oldmon)
		arrange(oldmon, false, false);
	if (m) {
		/* Make sure window actually overlaps with the monitor */
		reset_foreign_tolevel(c, oldmon, m);
		resize(c, c->geom, 0);
		client_reset_mon_tags(c, m, newtags);
		check_match_tag_floating_rule(c, m);
		setfloating(c, c->isfloating);
		setfullscreen(c, c->isfullscreen,
					  true); /* This will call arrange(c->mon) */
	}

	if (focus && !client_is_x11_popup(c)) {
		focusclient(focustop(selmon), 1);
	}
}

void setpsel(struct wl_listener *listener, void *data) {
	/* This event is raised by the seat when a client wants to set the
	 * selection, usually when the user copies something. wlroots allows
	 * compositors to ignore such requests if they so choose, but in dwl we
	 * always honor
	 */
	struct wlr_seat_request_set_primary_selection_event *event = data;
	wlr_seat_set_primary_selection(seat, event->source, event->serial);
}

void setsel(struct wl_listener *listener, void *data) {
	/* This event is raised by the seat when a client wants to set the
	 * selection, usually when the user copies something. wlroots allows
	 * compositors to ignore such requests if they so choose, but in dwl we
	 * always honor
	 */
	struct wlr_seat_request_set_selection_event *event = data;
	wlr_seat_set_selection(seat, event->source, event->serial);
}

void show_hide_client(Client *c) {
	uint32_t target = 1;

	set_size_per(c->mon, c);
	target = get_tags_first_tag(c->oldtags);

	if (!c->is_in_scratchpad) {
		tag_client(&(Arg){.ui = target}, c);
	} else {
		c->tags = c->oldtags;
		arrange(c->mon, false, false);
	}
	client_pending_minimized_state(c, 0);
	focusclient(c, 1);

	if (c->foreign_toplevel)
		wlr_foreign_toplevel_handle_v1_set_activated(c->foreign_toplevel, true);
}

void create_output(struct wlr_backend *backend, void *data) {
	bool *done = data;
	if (*done) {
		return;
	}

	if (wlr_backend_is_wl(backend)) {
		wlr_wl_output_create(backend);
		*done = true;
	} else if (wlr_backend_is_headless(backend)) {
		wlr_headless_add_output(backend, 1920, 1080);
		*done = true;
	}
#if WLR_HAS_X11_BACKEND
	else if (wlr_backend_is_x11(backend)) {
		wlr_x11_output_create(backend);
		*done = true;
	}
#endif
}

// 修改信号处理函数，接收掩码参数
void handle_print_status(struct wl_listener *listener, void *data) {

	enum ipc_watch_type type = *(enum ipc_watch_type *)data;

	if (type & IPC_WATCH_KEYMODE) {
		ipc_notify_keymode();
	}
	if (type & IPC_WATCH_KB_LAYOUT) {
		ipc_notify_kb_layout();
	}
	if (type & IPC_WATCH_FOCUSING_CLIENT) {
		ipc_notify_focusing_client();
	}
	if (type & IPC_WATCH_ALL_TAGS) {
		ipc_notify_all_tags();
	}
	if (type & IPC_WATCH_ALL_CLIENTS) {
		ipc_notify_all_clients();
	}
	if (type &
		(IPC_WATCH_ALL_MONITORS | IPC_WATCH_KEYMODE | IPC_WATCH_KB_LAYOUT |
		 IPC_WATCH_FOCUSING_CLIENT | IPC_WATCH_TAGS)) {
		ipc_notify_all_monitors();
	}

	if (type & IPC_WATCH_CLIENT) {
		Client *c = NULL;
		wl_list_for_each(c, &clients, link) {
			if (c->iskilling)
				continue;
			ipc_notify_client(c);
		}
	}

	Monitor *m = NULL;
	wl_list_for_each(m, &mons, link) {
		if (!m->wlr_output->enabled) {
			continue;
		}

		if (type & IPC_WATCH_MONITOR) {
			ipc_notify_monitor(m);
		}
		if (type & IPC_WATCH_TAGS) {
			ipc_notify_tags(m);
		}

		if (type & IPC_WATCH_LAST_OPEN_SURFACE) {
			ipc_notify_last_surface_ws_name(m);
		}

		dwl_ext_workspace_printstatus(m);
		dwl_ipc_output_printstatus(m);
	}
}

void setup(void) {

	setenv("XDG_CURRENT_DESKTOP", "mango", 1);
	setenv("_JAVA_AWT_WM_NONREPARENTING", "1", 1);

	parse_config();
	if (cli_debug_log) {
		config.log_level = WLR_DEBUG;
	}
	init_baked_points();

	int32_t drm_fd, i;
	int32_t sig[] = {SIGCHLD, SIGINT,
					 SIGTERM}; // 不设置SIGPIPE,因为ipc发送失败不应该影响主程序
	struct sigaction sa = {.sa_flags = SA_RESTART, .sa_handler = handlesig};
	sigemptyset(&sa.sa_mask);

	for (i = 0; i < LENGTH(sig); i++)
		sigaction(sig[i], &sa, NULL);

	// 单独为 SIGPIPE 设置忽略
	struct sigaction sa_pipe = {.sa_flags = 0, .sa_handler = SIG_IGN};
	sigemptyset(&sa_pipe.sa_mask);
	sigaction(SIGPIPE, &sa_pipe, NULL);

	wlr_log_init(config.log_level, NULL);

	/* The Wayland display is managed by libwayland. It handles accepting
	 * clients from the Unix socket, manging Wayland globals, and so on. */
	dpy = wl_display_create();
	event_loop = wl_display_get_event_loop(dpy);

	ipc_init(event_loop);

	tablet_mgr = wlr_tablet_v2_create(dpy);
	/* The backend is a wlroots feature which abstracts the underlying input
	 * and output hardware. The autocreate option will choose the most
	 * suitable backend based on the current environment, such as opening an
	 * X11 window if an X11 server is running. The NULL argument here
	 * optionally allows you to pass in a custom renderer if wlr_renderer
	 * doesn't meet your needs. The backend uses the renderer, for example,
	 * to fall back to software cursors if the backend does not support
	 * hardware cursors (some older GPUs don't). */
	if (!(backend = wlr_backend_autocreate(event_loop, &session)))
		die("couldn't create backend");

	headless_backend = wlr_headless_backend_create(event_loop);
	if (!headless_backend) {
		wlr_log(WLR_ERROR, "Failed to create secondary headless backend");
	} else {
		wlr_multi_backend_add(backend, headless_backend);
	}

	/* Initialize the scene graph used to lay out windows */
	scene = wlr_scene_create();
	root_bg = wlr_scene_rect_create(&scene->tree, 0, 0, config.rootcolor);
	for (i = 0; i < NUM_LAYERS; i++)
		layers[i] = wlr_scene_tree_create(&scene->tree);
	drag_icon = wlr_scene_tree_create(&scene->tree);
	wlr_scene_node_place_below(&drag_icon->node, &layers[LyrBlock]->node);

	/* Create a renderer with the default implementation */
	if (!(drw = fx_renderer_create(backend)))
		die("couldn't create renderer");

	wl_signal_add(&drw->events.lost, &gpu_reset);

	/* Create shm, drm and linux_dmabuf interfaces by ourselves.
	 * The simplest way is call:
	 *      wlr_renderer_init_wl_display(drw);
	 * but we need to create manually the linux_dmabuf interface to
	 * integrate it with wlr_scene. */
	wlr_renderer_init_wl_shm(drw, dpy);

	if (wlr_renderer_get_texture_formats(drw, WLR_BUFFER_CAP_DMABUF)) {
		wlr_drm_create(dpy, drw);
		wlr_scene_set_linux_dmabuf_v1(
			scene, wlr_linux_dmabuf_v1_create_with_renderer(dpy, 4, drw));
	}

	if (config.syncobj_enable && (drm_fd = wlr_renderer_get_drm_fd(drw)) >= 0 &&
		drw->features.timeline && backend->features.timeline)
		wlr_linux_drm_syncobj_manager_v1_create(dpy, 1, drm_fd);

	/* Create a default allocator */
	if (!(alloc = wlr_allocator_autocreate(backend, drw)))
		die("couldn't create allocator");

	/* This creates some hands-off wlroots interfaces. The compositor is
	 * necessary for clients to allocate surfaces and the data device
	 * manager handles the clipboard. Each of these wlroots interfaces has
	 * room for you to dig your fingers in and play with their behavior if
	 * you want. Note that the clients cannot set the selection directly
	 * without compositor approval, see the setsel() function. */
	compositor = wlr_compositor_create(dpy, 6, drw);
	wlr_export_dmabuf_manager_v1_create(dpy);
	wlr_screencopy_manager_v1_create(dpy);
	wlr_ext_image_copy_capture_manager_v1_create(dpy, 1);
	wlr_ext_output_image_capture_source_manager_v1_create(dpy, 1);
	wlr_data_control_manager_v1_create(dpy);
	wlr_data_device_manager_create(dpy);
	wlr_primary_selection_v1_device_manager_create(dpy);
	wlr_viewporter_create(dpy);
	wlr_single_pixel_buffer_manager_v1_create(dpy);
	wlr_fractional_scale_manager_v1_create(dpy, 1);
	wlr_presentation_create(dpy, backend, 2);
	wlr_subcompositor_create(dpy);
	wlr_alpha_modifier_v1_create(dpy);
	wlr_ext_data_control_manager_v1_create(dpy, 1);

	// 在 setup 函数中
	wl_signal_init(&mango_print_status);
	wl_signal_add(&mango_print_status, &print_status_listener);

	/* Initializes the interface used to implement urgency hints */
	activation = wlr_xdg_activation_v1_create(dpy);
	wl_signal_add(&activation->events.request_activate, &request_activate);

	wlr_scene_set_gamma_control_manager_v1(
		scene, wlr_gamma_control_manager_v1_create(dpy));

	power_mgr = wlr_output_power_manager_v1_create(dpy);
	wl_signal_add(&power_mgr->events.set_mode, &output_power_mgr_set_mode);

	tearing_control = wlr_tearing_control_manager_v1_create(dpy, 1);
	tearing_new_object.notify = handle_tearing_new_object;
	wl_signal_add(&tearing_control->events.new_object, &tearing_new_object);

	/* Creates an output layout, which a wlroots utility for working with an
	 * arrangement of screens in a physical layout. */
	output_layout = wlr_output_layout_create(dpy);
	wl_signal_add(&output_layout->events.change, &layout_change);
	wlr_xdg_output_manager_v1_create(dpy, output_layout);

	/* Configure a listener to be notified when new outputs are available on
	 * the backend. */
	wl_list_init(&mons);
	wl_signal_add(&backend->events.new_output, &new_output);

	/* Set up our client lists and the xdg-shell. The xdg-shell is a
	 * Wayland protocol which is used for application windows. For more
	 * detail on shells, refer to the article:
	 *
	 * https://drewdevault.com/2018/07/29/Wayland-shells.html
	 */
	wl_list_init(&clients);
	wl_list_init(&fstack);
	wl_list_init(&fadeout_clients);
	wl_list_init(&fadeout_layers);

	idle_notifier = wlr_idle_notifier_v1_create(dpy);

	idle_inhibit_mgr = wlr_idle_inhibit_v1_create(dpy);
	wl_signal_add(&idle_inhibit_mgr->events.new_inhibitor, &new_idle_inhibitor);

	keep_idle_inhibit_source = wl_event_loop_add_timer(
		wl_display_get_event_loop(dpy), keep_idle_inhibit, NULL);

	layer_shell = wlr_layer_shell_v1_create(dpy, 4);
	wl_signal_add(&layer_shell->events.new_surface, &new_layer_surface);

	xdg_shell = wlr_xdg_shell_create(dpy, 6);
	wl_signal_add(&xdg_shell->events.new_toplevel, &new_xdg_toplevel);
	wl_signal_add(&xdg_shell->events.new_popup, &new_xdg_popup);

	session_lock_mgr = wlr_session_lock_manager_v1_create(dpy);
	wl_signal_add(&session_lock_mgr->events.new_lock, &new_session_lock);

	locked_bg =
		wlr_scene_rect_create(layers[LyrBlock], sgeom.width, sgeom.height,
							  (float[4]){0.1, 0.1, 0.1, 1.0});
	wlr_scene_node_set_enabled(&locked_bg->node, false);

	/* Use decoration protocols to negotiate server-side decorations */
	wlr_server_decoration_manager_set_default_mode(
		wlr_server_decoration_manager_create(dpy),
		WLR_SERVER_DECORATION_MANAGER_MODE_SERVER);
	xdg_decoration_mgr = wlr_xdg_decoration_manager_v1_create(dpy);
	wl_signal_add(&xdg_decoration_mgr->events.new_toplevel_decoration,
				  &new_xdg_decoration);

	pointer_constraints = wlr_pointer_constraints_v1_create(dpy);
	wl_signal_add(&pointer_constraints->events.new_constraint,
				  &new_pointer_constraint);

	relative_pointer_mgr = wlr_relative_pointer_manager_v1_create(dpy);

	/*
	 * Creates a cursor, which is a wlroots utility for tracking the cursor
	 * image shown on screen.
	 */
	cursor = wlr_cursor_create();
	wlr_cursor_attach_output_layout(cursor, output_layout);

	/* Creates an xcursor manager, another wlroots utility which loads up
	 * Xcursor themes to source cursor images from and makes sure that
	 * cursor images are available at all scale factors on the screen
	 * (necessary for HiDPI support). Scaled cursors will be loaded with
	 * each output. */

	set_xcursor_env();

	cursor_mgr =
		wlr_xcursor_manager_create(config.cursor_theme, config.cursor_size);
	/*
	 * wlr_cursor *only* displays an image on screen. It does not move
	 * around when the pointer moves. However, we can attach input devices
	 * to it, and it will generate aggregate events for all of them. In
	 * these events, we can choose how we want to process them, forwarding
	 * them to clients and moving the cursor around. More detail on this
	 * process is described in my input handling blog post:
	 *
	 * https://drewdevault.com/2018/07/17/Input-handling-in-wlroots.html
	 *
	 * And more comments are sprinkled throughout the notify functions
	 * above.
	 */
	wl_signal_add(&cursor->events.motion, &cursor_motion);
	wl_signal_add(&cursor->events.motion_absolute, &cursor_motion_absolute);
	wl_signal_add(&cursor->events.button, &cursor_button);
	wl_signal_add(&cursor->events.axis, &cursor_axis);
	wl_signal_add(&cursor->events.frame, &cursor_frame);
	wl_signal_add(&cursor->events.tablet_tool_proximity,
				  &tablet_tool_proximity);
	wl_signal_add(&cursor->events.tablet_tool_axis, &tablet_tool_axis);
	wl_signal_add(&cursor->events.tablet_tool_button, &tablet_tool_button);
	wl_signal_add(&cursor->events.tablet_tool_tip, &tablet_tool_tip);

	// 这两句代码会造成obs窗口里的鼠标光标消失,不知道注释有什么影响
	cursor_shape_mgr = wlr_cursor_shape_manager_v1_create(dpy, 1);
	wl_signal_add(&cursor_shape_mgr->events.request_set_shape,
				  &request_set_cursor_shape);
	hide_cursor_source = wl_event_loop_add_timer(wl_display_get_event_loop(dpy),
												 hidecursor, cursor);
	/*
	 * Configures a seat, which is a single "seat" at which a user sits and
	 * operates the computer. This conceptually includes up to one keyboard,
	 * pointer, touch, and drawing tablet device. We also rig up a listener
	 * to let us know when new input devices are available on the backend.
	 */
	wl_list_init(&inputdevices);
	wl_list_init(&tablets);
	wl_list_init(&tablet_pads);
	wl_list_init(&keyboard_shortcut_inhibitors);
	wl_signal_add(&backend->events.new_input, &new_input_device);
	virtual_keyboard_mgr = wlr_virtual_keyboard_manager_v1_create(dpy);
	wl_signal_add(&virtual_keyboard_mgr->events.new_virtual_keyboard,
				  &new_virtual_keyboard);
	virtual_pointer_mgr = wlr_virtual_pointer_manager_v1_create(dpy);
	wl_signal_add(&virtual_pointer_mgr->events.new_virtual_pointer,
				  &new_virtual_pointer);

	pointer_gestures = wlr_pointer_gestures_v1_create(dpy);
	LISTEN_STATIC(&cursor->events.swipe_begin, swipe_begin);
	LISTEN_STATIC(&cursor->events.swipe_update, swipe_update);
	LISTEN_STATIC(&cursor->events.swipe_end, swipe_end);
	LISTEN_STATIC(&cursor->events.pinch_begin, pinch_begin);
	LISTEN_STATIC(&cursor->events.pinch_update, pinch_update);
	LISTEN_STATIC(&cursor->events.pinch_end, pinch_end);
	LISTEN_STATIC(&cursor->events.hold_begin, hold_begin);
	LISTEN_STATIC(&cursor->events.hold_end, hold_end);

	seat = wlr_seat_create(dpy, "seat0");

	wl_list_init(&last_cursor_surface_destroy_listener.link);
	wl_signal_add(&seat->events.request_set_cursor, &request_cursor);
	wl_signal_add(&seat->events.request_set_selection, &request_set_sel);
	wl_signal_add(&seat->events.request_set_primary_selection,
				  &request_set_psel);
	wl_signal_add(&seat->events.request_start_drag, &request_start_drag);
	wl_signal_add(&seat->events.start_drag, &start_drag);

	kb_group = createkeyboardgroup();
	wl_list_init(&kb_group->destroy.link);

	keyboard_shortcuts_inhibit = wlr_keyboard_shortcuts_inhibit_v1_create(dpy);
	wl_signal_add(&keyboard_shortcuts_inhibit->events.new_inhibitor,
				  &keyboard_shortcuts_inhibit_new_inhibitor);

	output_mgr = wlr_output_manager_v1_create(dpy);
	wl_signal_add(&output_mgr->events.apply, &output_mgr_apply);
	wl_signal_add(&output_mgr->events.test, &output_mgr_test);

	wlr_scene_set_blur_data(
		scene, config.blur_params.num_passes, config.blur_params.radius,
		config.blur_params.noise, config.blur_params.brightness,
		config.blur_params.contrast, config.blur_params.saturation);

	/* create text_input-, and input_method-protocol relevant globals */
	input_method_manager = wlr_input_method_manager_v2_create(dpy);
	text_input_manager = wlr_text_input_manager_v3_create(dpy);

	dwl_input_method_relay = dwl_im_relay_create();

	drm_lease_manager = wlr_drm_lease_v1_manager_create(dpy, backend);
	if (drm_lease_manager) {
		wl_signal_add(&drm_lease_manager->events.request, &drm_lease_request);
	} else {
		wlr_log(WLR_DEBUG, "Failed to create wlr_drm_lease_device_v1.");
		wlr_log(WLR_INFO, "VR will not be available.");
	}

	wl_global_create(dpy, &zdwl_ipc_manager_v2_interface, 2, NULL,
					 dwl_ipc_manager_bind);

	// 创建顶层管理句柄
	foreign_toplevel_manager = wlr_foreign_toplevel_manager_v1_create(dpy);
	struct wlr_xdg_foreign_registry *foreign_registry =
		wlr_xdg_foreign_registry_create(dpy);
	wlr_xdg_foreign_v1_create(dpy, foreign_registry);
	wlr_xdg_foreign_v2_create(dpy, foreign_registry);

	// ext-workspace协议
	workspaces_init();
#ifdef XWAYLAND
	/*
	 * Initialise the XWayland X server.
	 * It will be started when the first X client is started.
	 */
	xwayland =
		wlr_xwayland_create(dpy, compositor, !config.xwayland_persistence);
	if (xwayland) {
		wl_signal_add(&xwayland->events.ready, &xwayland_ready);
		wl_signal_add(&xwayland->events.new_surface, &new_xwayland_surface);

		setenv("DISPLAY", xwayland->display_name, 1);
	} else {
		fprintf(stderr,
				"failed to setup XWayland X server, continuing without it\n");
	}
	sync_keymap = wl_event_loop_add_timer(wl_display_get_event_loop(dpy),
										  synckeymap, NULL);
#endif
}

void startdrag(struct wl_listener *listener, void *data) {
	struct wlr_drag *drag = data;
	if (!drag->icon)
		return;

	drag->icon->data = &wlr_scene_drag_icon_create(drag_icon, drag->icon)->node;
	LISTEN_STATIC(&drag->icon->events.destroy, destroydragicon);
}

void tag_client(const Arg *arg, Client *target_client) {
	Client *fc = NULL;
	if (target_client && arg->ui & TAGMASK) {

		target_client->tags = arg->ui & TAGMASK;
		target_client->istagswitching = 1;

		wl_list_for_each(fc, &clients, link) {
			if (fc && fc != target_client && target_client->tags & fc->tags &&
				ISFULLSCREEN(fc) && !target_client->isfloating) {
				clear_fullscreen_flag(fc);
			}
		}
		view(&(Arg){.ui = arg->ui, .i = arg->i}, true);

	} else {
		view(arg, true);
	}

	focusclient(target_client, 1);
	printstatus(IPC_WATCH_ARRANGGE);
}

// 目标窗口有其他窗口和它同个tag就返回0
uint32_t want_restore_fullscreen(Client *target_client) {
	Client *c = NULL;
	wl_list_for_each(c, &clients, link) {
		if (c && c != target_client && c->tags == target_client->tags &&
			c == selmon->sel &&
			c->mon->pertag->ltidxs[get_tags_first_tag_num(c->tags)]->id !=
				SCROLLER &&
			c->mon->pertag->ltidxs[get_tags_first_tag_num(c->tags)]->id !=
				VERTICAL_SCROLLER) {
			return 0;
		}
	}

	return 1;
}

void overview_backup_surface(Client *c) {

	if (c->overview_scene_surface) {
		return;
	}

	struct wlr_box geometry;
	client_get_geometry(c, &geometry);
	struct wlr_box clip_box = (struct wlr_box){
		.x = geometry.x,
		.y = geometry.y,
		.width = c->overview_backup_geom.width - 2 * config.borderpx,
		.height = c->overview_backup_geom.height - 2 * config.borderpx,
	};

	if (client_is_x11(c)) {
		clip_box.x = 0;
		clip_box.y = 0;
	}

	c->overview_scene_surface = c->scene_surface;
	wlr_scene_node_set_enabled(&c->scene_surface->node, true);
	wlr_scene_node_set_position(&c->scene_surface->node, 0, 0);
	wlr_scene_subsurface_tree_set_clip(&c->scene_surface->node, &clip_box);
	c->scene_surface =
		wlr_scene_tree_snapshot(&c->scene_surface->node, c->scene);
	wlr_scene_node_set_enabled(&c->overview_scene_surface->node, false);
	wlr_scene_node_set_enabled(&c->scene_surface->node, true);
}

// 普通视图切换到overview时保存窗口的旧状态
void overview_backup(Client *c) {
	c->overview_isfloatingbak = c->isfloating;
	c->overview_isfullscreenbak = c->isfullscreen;
	c->overview_ismaximizescreenbak = c->ismaximizescreen;
	c->overview_isfullscreenbak = c->isfullscreen;
	c->animation.tagining = false;
	c->animation.tagouted = false;
	c->animation.tagouting = false;
	c->overview_backup_geom = c->geom;
	c->overview_backup_bw = c->bw;
	if (c->isfloating) {
		c->isfloating = 0;
	}

	if (config.ov_no_resize) {
		overview_backup_surface(c);
	}

	if (c->isfullscreen || c->ismaximizescreen) {
		client_pending_fullscreen_state(c, 0); // 清除窗口全屏标志
		client_pending_maximized_state(c, 0);
	}
	c->bw = c->isnoborder ? 0 : config.borderpx;

	client_set_tiled(c, WLR_EDGE_TOP | WLR_EDGE_BOTTOM | WLR_EDGE_LEFT |
							WLR_EDGE_RIGHT);
}

// overview切回到普通视图还原窗口的状态
void overview_restore(Client *c, const Arg *arg) {
	c->isfloating = c->overview_isfloatingbak;
	c->isfullscreen = c->overview_isfullscreenbak;
	c->ismaximizescreen = c->overview_ismaximizescreenbak;
	c->overview_isfloatingbak = 0;
	c->overview_isfullscreenbak = 0;
	c->overview_ismaximizescreenbak = 0;
	c->geom = c->overview_backup_geom;
	c->bw = c->overview_backup_bw;
	c->animation.tagining = false;
	c->is_restoring_from_ov = (arg->ui & c->tags & TAGMASK) == 0 ? true : false;

	if (c->overview_scene_surface) {
		wlr_scene_node_destroy(&c->scene_surface->node);
		c->scene_surface = c->overview_scene_surface;
		c->overview_scene_surface = NULL;
	}

	if (c->isfloating) {
		// XRaiseWindow(dpy, c->win); // 提升悬浮窗口到顶层
		resize(c, c->overview_backup_geom, 0);
	} else if (c->isfullscreen || c->ismaximizescreen) {
		if (want_restore_fullscreen(c) && c->ismaximizescreen) {
			setmaximizescreen(c, 1, false);
		} else if (want_restore_fullscreen(c) && c->isfullscreen) {
			setfullscreen(c, 1, false);
		} else {
			client_pending_fullscreen_state(c, 0);
			client_pending_maximized_state(c, 0);
			setfullscreen(c, false, false);
		}
	} else {
		if (c->is_restoring_from_ov) {
			c->is_restoring_from_ov = false;
			resize(c, c->overview_backup_geom, 0);
		}
	}

	if (c->bw == 0 &&
		!c->isfullscreen) { // 如果是在ov模式中创建的窗口,没有bw记录
		c->bw = c->isnoborder ? 0 : config.borderpx;
	}

	if (c->isfloating && !c->force_tiled_state) {
		client_set_tiled(c, WLR_EDGE_NONE);
	}
}

void handlecursoractivity(void) {
	wl_event_source_timer_update(hide_cursor_source,
								 config.cursor_hide_timeout * 1000);

	if (!cursor_hidden)
		return;

	cursor_hidden = false;

	if (last_cursor.shape)
		wlr_cursor_set_xcursor(cursor, cursor_mgr,
							   wlr_cursor_shape_v1_name(last_cursor.shape));
	else if (last_cursor.surface)
		wlr_cursor_set_surface(cursor, last_cursor.surface,
							   last_cursor.hotspot_x, last_cursor.hotspot_y);
}

int32_t hidecursor(void *data) {
	wlr_cursor_unset_image(cursor);
	cursor_hidden = true;
	return 1;
}

void check_keep_idle_inhibit(Client *c) {
	if (c && c->idleinhibit_when_focus && keep_idle_inhibit_source) {
		wl_event_source_timer_update(keep_idle_inhibit_source, 1000);
	}
}

int32_t keep_idle_inhibit(void *data) {

	if (!idle_inhibit_mgr) {
		wl_event_source_timer_update(keep_idle_inhibit_source, 0);
		return 1;
	}

	if (session && !session->active) {
		wl_event_source_timer_update(keep_idle_inhibit_source, 0);
		return 1;
	}

	if (!selmon || !selmon->sel || !selmon->sel->idleinhibit_when_focus) {
		wl_event_source_timer_update(keep_idle_inhibit_source, 0);
		return 1;
	}

	if (seat && idle_notifier) {
		wlr_idle_notifier_v1_notify_activity(idle_notifier, seat);
		wl_event_source_timer_update(keep_idle_inhibit_source, 1000);
	}
	return 1;
}

void unlocksession(struct wl_listener *listener, void *data) {
	SessionLock *lock = wl_container_of(listener, lock, unlock);
	destroylock(lock, 1);
}

void unmaplayersurfacenotify(struct wl_listener *listener, void *data) {
	LayerSurface *l = wl_container_of(listener, l, unmap);

	l->mapped = 0;
	l->being_unmapped = true;

	init_fadeout_layers(l);

	wlr_scene_node_set_enabled(&l->scene->node, false);

	if (l == exclusive_focus)
		exclusive_focus = NULL;

	if (l->layer_surface->output && (l->mon = l->layer_surface->output->data))
		arrangelayers(l->mon);

	reset_exclusive_layers_focus(l->mon);

	motionnotify(0, NULL, 0, 0, 0, 0);
	layer_flush_blur_background(l);
	wlr_scene_node_destroy(&l->shadow->node);
	l->shadow = NULL;
	l->being_unmapped = false;
}

void unmapnotify(struct wl_listener *listener, void *data) {
	/* Called when the surface is unmapped, and should no longer be shown.
	 */
	Client *c = wl_container_of(listener, c, unmap);
	Monitor *m = NULL;
	Client *nextfocus = NULL;
	c->iskilling = 1;
	struct ScrollerStackNode *target_node =
		c->mon ? find_scroller_node(
					 c->mon->pertag->scroller_state[c->mon->pertag->curtag], c)
			   : NULL;
	struct ScrollerStackNode *prev_node =
		target_node ? target_node->prev_in_stack : NULL;
	struct ScrollerStackNode *next_node =
		target_node ? target_node->next_in_stack : NULL;

	if (config.animations && !c->is_clip_to_hide && !c->isminimized &&
		(!c->mon || VISIBLEON(c, c->mon)))
		init_fadeout_client(c);

	// If the client is in a stack, remove it from the stack

	if (c->swallowedby) {
		c->swallowedby->mon = c->mon;
		swallow(c->swallowedby, c);
	} else {
		scroller_remove_client(c);
		dwindle_remove_client(c);
	}

	if (c == grabc) {
		cursor_mode = CurNormal;
		grabc = NULL;
	}

	if (c == dropc) {
		dropc = NULL;
	}

	wl_list_for_each(m, &mons, link) {
		if (!m->wlr_output->enabled) {
			continue;
		}
		if (c == m->sel) {
			m->sel = NULL;
		}
		if (c == m->prevsel) {
			m->prevsel = NULL;
		}
	}

	if (c->mon && c->mon == selmon) {
		if (next_node && !c->swallowedby) {
			nextfocus = next_node->client;
		} else if (prev_node && !c->swallowedby) {
			nextfocus = prev_node->client;
		} else {
			nextfocus = focustop(selmon);
		}

		if (nextfocus) {
			focusclient(nextfocus, 0);
		}

		if (!nextfocus && selmon->isoverview) {
			Arg arg = {0};
			toggleoverview(&arg);
		}
	}

	if (client_is_unmanaged(c)) {
#ifdef XWAYLAND
		if (client_is_x11(c)) {
			wl_list_remove(&c->set_geometry.link);
		}
#endif
		if (c == exclusive_focus)
			exclusive_focus = NULL;
		if (client_surface(c) == seat->keyboard_state.focused_surface)
			focusclient(focustop(selmon), 1);
	} else {
		if (!c->swallowing)
			wl_list_remove(&c->link);
		setmon(c, NULL, 0, true);
		if (!c->swallowing)
			wl_list_remove(&c->flink);
	}

	if (c->foreign_toplevel) {
		wlr_foreign_toplevel_handle_v1_destroy(c->foreign_toplevel);
		c->foreign_toplevel = NULL;
	}

	if (c->swallowedby) {
		setmaximizescreen(c->swallowedby, c->ismaximizescreen, true);
		setfullscreen(c->swallowedby, c->isfullscreen, true);
		c->swallowedby->swallowing = NULL;
		c->swallowedby = NULL;
	}

	if (c->swallowing) {
		c->swallowing->swallowedby = NULL;
		c->swallowing = NULL;
	}

	c->stack_proportion = 0.0f;

	wlr_scene_node_destroy(&c->scene->node);
	printstatus(IPC_WATCH_ARRANGGE);
	motionnotify(0, NULL, 0, 0, 0, 0);
}

void updatemons(struct wl_listener *listener, void *data) {
	/*
	 * Called whenever the output layout changes: adding or removing a
	 * monitor, changing an output's mode or position, etc. This is where
	 * the change officially happens and we update geometry, window
	 * positions, focus, and the stored configuration in wlroots'
	 * output-manager implementation.
	 */
	struct wlr_output_configuration_v1 *output_config =
		wlr_output_configuration_v1_create();
	Client *c = NULL;
	struct wlr_output_configuration_head_v1 *config_head;
	Monitor *m = NULL;
	int32_t mon_pos_offsetx, mon_pos_offsety, oldx, oldy;

	/* First remove from the layout the disabled monitors */
	wl_list_for_each(m, &mons, link) {
		if (m->wlr_output->enabled || m->asleep)
			continue;
		config_head = wlr_output_configuration_head_v1_create(output_config,
															  m->wlr_output);
		config_head->state.enabled = 0;
		/* Remove this output from the layout to avoid cursor enter inside
		 * it */
		wlr_output_layout_remove(output_layout, m->wlr_output);
		closemon(m);
		m->m = m->w = (struct wlr_box){0};
	}
	/* Insert outputs that need to */
	wl_list_for_each(m, &mons, link) {
		if (m->wlr_output->enabled &&
			!wlr_output_layout_get(output_layout, m->wlr_output))
			wlr_output_layout_add_auto(output_layout, m->wlr_output);
	}

	/* Now that we update the output layout we can get its box */
	wlr_output_layout_get_box(output_layout, NULL, &sgeom);

	wlr_scene_node_set_position(&root_bg->node, sgeom.x, sgeom.y);
	wlr_scene_rect_set_size(root_bg, sgeom.width, sgeom.height);

	/* Make sure the clients are hidden when dwl is locked */
	wlr_scene_node_set_position(&locked_bg->node, sgeom.x, sgeom.y);
	wlr_scene_rect_set_size(locked_bg, sgeom.width, sgeom.height);

	wl_list_for_each(m, &mons, link) {
		if (!m->wlr_output->enabled)
			continue;
		config_head = wlr_output_configuration_head_v1_create(output_config,
															  m->wlr_output);

		oldx = m->m.x;
		oldy = m->m.y;
		/* Get the effective monitor geometry to use for surfaces */
		wlr_output_layout_get_box(output_layout, m->wlr_output, &m->m);
		m->w = m->m;
		mon_pos_offsetx = m->m.x - oldx;
		mon_pos_offsety = m->m.y - oldy;

		wl_list_for_each(c, &clients, link) {
			// floating window position auto adjust the change of monitor
			// position
			if (c->isfloating && c->mon == m) {
				c->geom.x += mon_pos_offsetx;
				c->geom.y += mon_pos_offsety;
				c->float_geom = c->geom;
				if (VISIBLEON(c, m))
					resize(c, c->geom, 1);
			}

			// restore window to old monitor
			if (c->mon && c->mon != m && client_surface(c)->mapped &&
				strcmp(c->oldmonname, m->wlr_output->name) == 0) {
				client_change_mon(c, m);
			}
		}

		/*
		 must put it under the floating window position adjustment,
		 Otherwise, incorrect floating window calculations will occur here.
		 */
		wlr_scene_output_set_position(m->scene_output, m->m.x, m->m.y);

		if (config.blur && m->blur) {
			wlr_scene_node_set_position(&m->blur->node, m->m.x, m->m.y);
			wlr_scene_optimized_blur_set_size(m->blur, m->m.width, m->m.height);
		}

		if (m->lock_surface) {
			struct wlr_scene_tree *scene_tree = m->lock_surface->surface->data;
			wlr_scene_node_set_position(&scene_tree->node, m->m.x, m->m.y);
			wlr_session_lock_surface_v1_configure(m->lock_surface, m->m.width,
												  m->m.height);
		}

		/* Calculate the effective monitor geometry to use for clients */
		arrangelayers(m);
		/* Don't move clients to the left output when plugging monitors */
		arrange(m, false, false);
		/* make sure fullscreen clients have the right size */
		if ((c = focustop(m)) && c->isfullscreen)
			resize(c, m->m, 0);

		config_head->state.x = m->m.x;
		config_head->state.y = m->m.y;

		if (!selmon)
			selmon = m;
	}

	if (selmon && selmon->wlr_output->enabled) {
		wl_list_for_each(c, &clients, link) {
			if (!c->mon && client_surface(c)->mapped) {
				c->mon = selmon;
				reset_foreign_tolevel(c, NULL, c->mon);
			}
			if (c->tags == 0 && !c->is_in_scratchpad) {
				c->tags = selmon->tagset[selmon->seltags];
				set_size_per(selmon, c);
			}
		}
		focusclient(focustop(selmon), 1);
		if (selmon->lock_surface) {
			client_notify_enter(selmon->lock_surface->surface,
								wlr_seat_get_keyboard(seat));
			client_activate_surface(selmon->lock_surface->surface, 1);
		}
	}

	/* FIXME: figure out why the cursor image is at 0,0 after turning all
	 * the monitors on.
	 * Move the cursor image where it used to be. It does not generate a
	 * wl_pointer.motion event for the clients, it's only the image what
	 * it's at the wrong position after all. */
	wlr_cursor_move(cursor, NULL, 0, 0);

	wlr_output_manager_v1_set_configuration(output_mgr, output_config);
}

void updatetitle(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, set_title);

	if (!c || c->iskilling)
		return;

	const char *title;
	title = client_get_title(c);
	if (title && c->foreign_toplevel)
		wlr_foreign_toplevel_handle_v1_set_title(c->foreign_toplevel, title);
	if (c == focustop(c->mon))
		printstatus(IPC_WATCH_ARRANGGE);
}

void // 17 fix to 0.5
urgent(struct wl_listener *listener, void *data) {
	struct wlr_xdg_activation_v1_request_activate_event *event = data;
	Client *c = NULL;
	toplevel_from_wlr_surface(event->surface, &c, NULL);

	if (!c || !c->foreign_toplevel)
		return;

	if (config.focus_on_activate && !c->istagsilent && c != selmon->sel) {
		if (!(c->mon == selmon && c->tags & c->mon->tagset[c->mon->seltags]))
			view_in_mon(&(Arg){.ui = c->tags}, true, c->mon, true);
		focusclient(c, 1);
	} else if (c != focustop(selmon)) {
		c->isurgent = 1;
		if (client_surface(c)->mapped)
			setborder_color(c);
		printstatus(IPC_WATCH_ARRANGGE);
	}
}

void view_in_mon(const Arg *arg, bool want_animation, Monitor *m,
				 bool changefocus) {
	uint32_t i, tmptag;

	if (!m || (arg->ui != (~0 & TAGMASK) && m->isoverview)) {
		return;
	}

	if (arg->ui == 0) {
		return;
	}

	if (arg->ui == UINT32_MAX) {
		if (m->tagset[0] != m->tagset[1]) {
			m->pertag->prevtag = get_tags_first_tag_num(m->tagset[m->seltags]);
			m->seltags ^= 1; /* toggle sel tagset */
			m->pertag->curtag = get_tags_first_tag_num(m->tagset[m->seltags]);
			goto toggleseltags;
		} else {
			return;
		}
	}

	if ((m->tagset[m->seltags] & arg->ui & TAGMASK) != 0) {
		want_animation = false;
	}

	m->seltags ^= 1; /* toggle sel tagset */

	if (arg->ui & TAGMASK) {
		m->tagset[m->seltags] = arg->ui & TAGMASK;
		tmptag = m->pertag->curtag;

		if (arg->ui == (~0 & TAGMASK))
			m->pertag->curtag = 0;
		else {
			for (i = 0; !(arg->ui & 1 << i) && i < LENGTH(tags) && arg->ui != 0;
				 i++)
				;
			m->pertag->curtag = i >= LENGTH(tags) ? LENGTH(tags) : i + 1;
		}

		m->pertag->prevtag =
			tmptag == m->pertag->curtag ? m->pertag->prevtag : tmptag;
	} else {
		tmptag = m->pertag->prevtag;
		m->pertag->prevtag = m->pertag->curtag;
		m->pertag->curtag = tmptag;
	}

toggleseltags:

	if (changefocus)
		focusclient(focustop(m), 1);
	arrange(m, want_animation, true);
	printstatus(IPC_WATCH_ARRANGGE);
}

void view(const Arg *arg, bool want_animation) {
	Monitor *m = NULL;
	if (arg->i) {
		view_in_mon(arg, want_animation, selmon, true);
		wl_list_for_each(m, &mons, link) {
			if (!m->wlr_output->enabled || m == selmon)
				continue;
			// only arrange, not change monitor focus
			view_in_mon(arg, want_animation, m, false);
		}
	} else {
		view_in_mon(arg, want_animation, selmon, true);
	}
}

static void
handle_keyboard_shortcuts_inhibitor_destroy(struct wl_listener *listener,
											void *data) {
	KeyboardShortcutsInhibitor *inhibitor =
		wl_container_of(listener, inhibitor, destroy);

	wlr_log(WLR_DEBUG, "Removing keyboard shortcuts inhibitor");

	wl_list_remove(&inhibitor->link);
	wl_list_remove(&inhibitor->destroy.link);
	free(inhibitor);
}

void handle_keyboard_shortcuts_inhibit_new_inhibitor(
	struct wl_listener *listener, void *data) {

	struct wlr_keyboard_shortcuts_inhibitor_v1 *inhibitor = data;

	if (config.allow_shortcuts_inhibit == SHORTCUTS_INHIBIT_DISABLE) {
		return;
	}

	// per-view, seat-agnostic config via criteria
	Client *c = NULL;
	LayerSurface *l = NULL;

	int32_t type = toplevel_from_wlr_surface(inhibitor->surface, &c, &l);

	if (type < 0)
		return;

	if (type != LayerShell && c && !c->allow_shortcuts_inhibit) {
		return;
	}

	wlr_log(WLR_DEBUG, "Adding keyboard shortcuts inhibitor");

	KeyboardShortcutsInhibitor *kbsinhibitor =
		calloc(1, sizeof(KeyboardShortcutsInhibitor));

	kbsinhibitor->inhibitor = inhibitor;

	kbsinhibitor->destroy.notify = handle_keyboard_shortcuts_inhibitor_destroy;
	wl_signal_add(&inhibitor->events.destroy, &kbsinhibitor->destroy);

	wl_list_insert(&keyboard_shortcut_inhibitors, &kbsinhibitor->link);

	wlr_keyboard_shortcuts_inhibitor_v1_activate(inhibitor);
}

void virtualkeyboard(struct wl_listener *listener, void *data) {
	struct wlr_virtual_keyboard_v1 *kb = data;
	/* virtual keyboards shouldn't share keyboard group */
	wlr_seat_set_capabilities(seat,
							  seat->capabilities | WL_SEAT_CAPABILITY_KEYBOARD);
	KeyboardGroup *group = createkeyboardgroup();
	/* Set the keymap to match the group keymap */
	wlr_keyboard_set_keymap(&kb->keyboard, group->wlr_group->keyboard.keymap);
	LISTEN(&kb->keyboard.base.events.destroy, &group->destroy,
		   destroykeyboardgroup);

	/* Add the new keyboard to the group */
	wlr_keyboard_group_add_keyboard(group->wlr_group, &kb->keyboard);
}

void warp_cursor(const Client *c) {
	if (INSIDEMON(c)) {
		wlr_cursor_warp_closest(cursor, NULL, c->geom.x + c->geom.width / 2.0,
								c->geom.y + c->geom.height / 2.0);
		motionnotify(0, NULL, 0, 0, 0, 0);
	}
}

void warp_cursor_to_selmon(Monitor *m) {

	wlr_cursor_warp_closest(cursor, NULL, m->w.x + m->w.width / 2.0,
							m->w.y + m->w.height / 2.0);
	wlr_cursor_set_xcursor(cursor, cursor_mgr, "default");
	handlecursoractivity();
}

void virtualpointer(struct wl_listener *listener, void *data) {
	struct wlr_virtual_pointer_v1_new_pointer_event *event = data;
	struct wlr_input_device *device = &event->new_pointer->pointer.base;
	wlr_seat_set_capabilities(seat,
							  seat->capabilities | WL_SEAT_CAPABILITY_POINTER);
	wlr_cursor_attach_input_device(cursor, device);
	if (event->suggested_output)
		wlr_cursor_map_input_to_output(cursor, device, event->suggested_output);

	handlecursoractivity();
}

#ifdef XWAYLAND
void fix_xwayland_coordinate(struct wlr_box *geom) {
	if (!selmon)
		return;

	// 1. 如果窗口已经在当前活动显示器内，直接返回
	if (geom->x >= selmon->m.x && geom->x <= selmon->m.x + selmon->m.width &&
		geom->y >= selmon->m.y && geom->y <= selmon->m.y + selmon->m.height)
		return;

	geom->x = selmon->m.x + (selmon->m.width - geom->width) / 2;
	geom->y = selmon->m.y + (selmon->m.height - geom->height) / 2;
}

int32_t synckeymap(void *data) {
	reset_keyboard_layout();
	// we only need to sync keymap once
	wlr_log(WLR_INFO, "timer to synckeymap done");
	wl_event_source_timer_update(sync_keymap, 0);
	return 0;
}

void activatex11(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, activate);
	bool need_arrange = false;

	if (!c || c->iskilling || !c->foreign_toplevel || client_is_unmanaged(c))
		return;

	if (c && c->swallowing)
		return;

	if (c->isminimized) {
		client_pending_minimized_state(c, 0);
		c->tags = c->mini_restore_tag;
		c->is_scratchpad_show = 0;
		c->is_in_scratchpad = 0;
		c->isnamedscratchpad = 0;
		setborder_color(c);
		if (VISIBLEON(c, c->mon)) {
			need_arrange = true;
		}
	}

	if (config.focus_on_activate && !c->istagsilent && c != selmon->sel) {
		if (!(c->mon == selmon && c->tags & c->mon->tagset[c->mon->seltags]))
			view_in_mon(&(Arg){.ui = c->tags}, true, c->mon, true);
		wlr_xwayland_surface_activate(c->surface.xwayland, 1);
		focusclient(c, 1);
		need_arrange = true;
	} else if (c != focustop(selmon)) {
		c->isurgent = 1;
		if (client_surface(c)->mapped)
			setborder_color(c);
	}

	if (need_arrange) {
		arrange(c->mon, false, false);
	}

	printstatus(IPC_WATCH_ARRANGGE);
}

void configurex11(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, configure);
	struct wlr_xwayland_surface_configure_event *event = data;
	struct wlr_box new_geo;
	new_geo.x = event->x;
	new_geo.y = event->y;
	new_geo.width = event->width;
	new_geo.height = event->height;
	fix_xwayland_coordinate(&new_geo);

	if (!client_surface(c) || !client_surface(c)->mapped) {

		wlr_xwayland_surface_configure(c->surface.xwayland, new_geo.x,
									   new_geo.y, new_geo.width,
									   new_geo.height);
		return;
	}

	if (client_is_unmanaged(c)) {
		wlr_scene_node_set_position(&c->scene->node, new_geo.x, new_geo.y);
		wlr_xwayland_surface_configure(c->surface.xwayland, new_geo.x,
									   new_geo.y, new_geo.width,
									   new_geo.height);
		return;
	}

	if (c->isfloating && c != grabc) {
		new_geo.x = new_geo.x - c->bw;
		new_geo.y = new_geo.y - c->bw;
		new_geo.width = new_geo.width + c->bw * 2;
		new_geo.height = new_geo.height + c->bw * 2;
		fix_xwayland_coordinate(&new_geo);

		resize(c,
			   (struct wlr_box){.x = new_geo.x,
								.y = new_geo.y,
								.width = new_geo.width,
								.height = new_geo.height},
			   0);
	} else {
		arrange(c->mon, false, false);
	}
}

void createnotifyx11(struct wl_listener *listener, void *data) {
	struct wlr_xwayland_surface *xsurface = data;
	Client *c = NULL;

	/* Allocate a Client for this surface */
	c = xsurface->data = ecalloc(1, sizeof(*c));
	c->surface.xwayland = xsurface;
	c->type = X11;
	/* Listen to the various events it can emit */
	LISTEN(&xsurface->events.associate, &c->associate, associatex11);
	LISTEN(&xsurface->events.destroy, &c->destroy, destroynotify);
	LISTEN(&xsurface->events.dissociate, &c->dissociate, dissociatex11);
	LISTEN(&xsurface->events.request_activate, &c->activate, activatex11);
	LISTEN(&xsurface->events.request_configure, &c->configure, configurex11);
	LISTEN(&xsurface->events.request_fullscreen, &c->fullscreen,
		   fullscreennotify);
	LISTEN(&xsurface->events.set_hints, &c->set_hints, sethints);
	LISTEN(&xsurface->events.set_title, &c->set_title, updatetitle);
	LISTEN(&xsurface->events.request_maximize, &c->maximize, maximizenotify);
	LISTEN(&xsurface->events.request_minimize, &c->minimize, minimizenotify);
}

void commitx11(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, commmitx11);
	struct wlr_surface_state *state = &c->surface.xwayland->surface->current;

	if ((int32_t)c->geom.width - 2 * (int32_t)c->bw == (int32_t)state->width &&
		(int32_t)c->geom.height - 2 * (int32_t)c->bw ==
			(int32_t)state->height &&
		(int32_t)c->surface.xwayland->x ==
			(int32_t)c->geom.x + (int32_t)c->bw &&
		(int32_t)c->surface.xwayland->y ==
			(int32_t)c->geom.y + (int32_t)c->bw) {
		c->configure_serial = 0;
	}
}

void associatex11(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, associate);

	LISTEN(&client_surface(c)->events.map, &c->map, mapnotify);
	LISTEN(&client_surface(c)->events.unmap, &c->unmap, unmapnotify);
	LISTEN(&client_surface(c)->events.commit, &c->commmitx11, commitx11);
}

void dissociatex11(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, dissociate);
	wl_list_remove(&c->map.link);
	wl_list_remove(&c->unmap.link);
	wl_list_remove(&c->commmitx11.link);
}

void sethints(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, set_hints);
	struct wlr_surface *surface = client_surface(c);
	if (c == focustop(selmon) || !c || !c->surface.xwayland->hints)
		return;

	c->isurgent = xcb_icccm_wm_hints_get_urgency(c->surface.xwayland->hints);
	printstatus(IPC_WATCH_ARRANGGE);

	if (c->isurgent && surface && surface->mapped)
		setborder_color(c);
}

void xwaylandready(struct wl_listener *listener, void *data) {
	struct wlr_xcursor *xcursor;

	/* assign the one and only seat */
	wlr_xwayland_set_seat(xwayland, seat);

	/* Set the default XWayland cursor to match the rest of dwl. */
	if ((xcursor = wlr_xcursor_manager_get_xcursor(cursor_mgr, "default", 1)))
		wlr_xwayland_set_cursor(
			xwayland, xcursor->images[0]->buffer, xcursor->images[0]->width * 4,
			xcursor->images[0]->width, xcursor->images[0]->height,
			xcursor->images[0]->hotspot_x, xcursor->images[0]->hotspot_y);
	/* xwayland can't auto sync the keymap, so we do it manually
	  and we need to wait the xwayland completely inited
	*/
	wl_event_source_timer_update(sync_keymap, 500);
}

static void setgeometrynotify(struct wl_listener *listener, void *data) {
	Client *c = wl_container_of(listener, c, set_geometry);

	wlr_scene_node_set_position(&c->scene->node, c->surface.xwayland->x,
								c->surface.xwayland->y);
	motionnotify(0, NULL, 0, 0, 0, 0);
}
#endif

int32_t main(int32_t argc, char *argv[]) {
	char *startup_cmd = NULL;
	int32_t c;

	while ((c = getopt(argc, argv, "s:c:hdvp")) != -1) {
		if (c == 's') {
			startup_cmd = optarg;
		} else if (c == 'd') {
			cli_debug_log = true;
		} else if (c == 'v') {
			printf("mango " VERSION "\n");
			return EXIT_SUCCESS;
		} else if (c == 'c') {
			cli_config_path = optarg;
		} else if (c == 'p') {
			return parse_config() ? EXIT_SUCCESS : EXIT_FAILURE;
		} else {
			goto usage;
		}
	}
	if (optind < argc)
		goto usage;

	/* Wayland requires XDG_RUNTIME_DIR for creating its communications
	 * socket
	 */
	if (!getenv("XDG_RUNTIME_DIR"))
		die("XDG_RUNTIME_DIR must be set");
	setup();
	run(startup_cmd);
	cleanup();
	return EXIT_SUCCESS;
usage:
	printf("Usage: mango [OPTIONS]\n"
		   "\n"
		   "Options:\n"
		   "  -v             Show mango version\n"
		   "  -d             Enable debug log\n"
		   "  -c <file>      Use custom configuration file\n"
		   "  -s <command>   Execute startup command\n"
		   "  -p             Check configuration file error\n");
	return EXIT_SUCCESS;
}
