class Reline::Windows
Constants
- CAPSLOCK_ON
- ENABLE_VIRTUAL_TERMINAL_PROCESSING
- ENHANCED_KEY
- FILE_NAME_INFO
- FILE_TYPE_PIPE
- KEY_EVENT
- KEY_MAP
- LEFT_ALT_PRESSED
- LEFT_CTRL_PRESSED
- NUMLOCK_ON
- RIGHT_ALT_PRESSED
- RIGHT_CTRL_PRESSED
- SCROLLLOCK_ON
- SHIFT_PRESSED
- STD_INPUT_HANDLE
- STD_OUTPUT_HANDLE
- VK_CONTROL
- VK_DELETE
- VK_DIVIDE
- VK_DOWN
- VK_END
- VK_HOME
- VK_LEFT
- VK_LMENU
- VK_MENU
- VK_RETURN
- VK_RIGHT
- VK_SHIFT
- VK_UP
- WINDOW_BUFFER_SIZE_EVENT
Public Class Methods
check_input_event()
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# File lib/reline/windows.rb, line 218 def self.check_input_event num_of_events = 0.chr * 8 while @@output_buf.empty? #or true next if @@GetNumberOfConsoleInputEvents.(@@hConsoleInputHandle, num_of_events) == 0 or num_of_events.unpack('L').first == 0 input_record = 0.chr * 18 read_event = 0.chr * 4 if @@ReadConsoleInputW.(@@hConsoleInputHandle, input_record, 1, read_event) != 0 event = input_record[0, 2].unpack('s*').first case event when WINDOW_BUFFER_SIZE_EVENT @@winch_handler.() when KEY_EVENT key_down = input_record[4, 4].unpack('l*').first repeat_count = input_record[8, 2].unpack('s*').first virtual_key_code = input_record[10, 2].unpack('s*').first virtual_scan_code = input_record[12, 2].unpack('s*').first char_code = input_record[14, 2].unpack('S*').first control_key_state = input_record[16, 2].unpack('S*').first is_key_down = key_down.zero? ? false : true if is_key_down process_key_event(repeat_count, virtual_key_code, virtual_scan_code, char_code, control_key_state) end end end end end
clear_screen()
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# File lib/reline/windows.rb, line 326 def self.clear_screen csbi = 0.chr * 22 return if @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) == 0 buffer_width = csbi[0, 2].unpack('S').first attributes = csbi[8, 2].unpack('S').first _window_left, window_top, _window_right, window_bottom = *csbi[10,8].unpack('S*') fill_length = buffer_width * (window_bottom - window_top + 1) screen_topleft = window_top * 65536 written = 0.chr * 4 @@FillConsoleOutputCharacter.call(@@hConsoleHandle, 0x20, fill_length, screen_topleft, written) @@FillConsoleOutputAttribute.call(@@hConsoleHandle, attributes, fill_length, screen_topleft, written) @@SetConsoleCursorPosition.call(@@hConsoleHandle, screen_topleft) end
cursor_pos()
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# File lib/reline/windows.rb, line 274 def self.cursor_pos csbi = 0.chr * 22 @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) x = csbi[4, 2].unpack('s*').first y = csbi[6, 2].unpack('s*').first Reline::CursorPos.new(x, y) end
deprep(otio)
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# File lib/reline/windows.rb, line 353 def self.deprep(otio) # do nothing end
empty_buffer?()
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# File lib/reline/windows.rb, line 258 def self.empty_buffer? if not @@input_buf.empty? false elsif @@kbhit.call == 0 true else false end end
encoding()
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# File lib/reline/windows.rb, line 4 def self.encoding Encoding::UTF_8 end
erase_after_cursor()
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# File lib/reline/windows.rb, line 307 def self.erase_after_cursor csbi = 0.chr * 24 @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) cursor = csbi[4, 4].unpack('L').first written = 0.chr * 4 @@FillConsoleOutputCharacter.call(@@hConsoleHandle, 0x20, get_screen_size.last - cursor_pos.x, cursor, written) @@FillConsoleOutputAttribute.call(@@hConsoleHandle, 0, get_screen_size.last - cursor_pos.x, cursor, written) end
get_screen_size()
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# File lib/reline/windows.rb, line 268 def self.get_screen_size csbi = 0.chr * 22 @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) csbi[0, 4].unpack('SS').reverse end
getc()
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# File lib/reline/windows.rb, line 245 def self.getc check_input_event @@output_buf.shift end
in_pasting?()
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# File lib/reline/windows.rb, line 254 def self.in_pasting? not self.empty_buffer? end
move_cursor_column(val)
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# File lib/reline/windows.rb, line 282 def self.move_cursor_column(val) @@SetConsoleCursorPosition.call(@@hConsoleHandle, cursor_pos.y * 65536 + val) end
move_cursor_down(val)
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# File lib/reline/windows.rb, line 296 def self.move_cursor_down(val) if val > 0 screen_height = get_screen_size.first y = cursor_pos.y + val y = screen_height - 1 if y > (screen_height - 1) @@SetConsoleCursorPosition.call(@@hConsoleHandle, (cursor_pos.y + val) * 65536 + cursor_pos.x) elsif val < 0 move_cursor_up(-val) end end
move_cursor_up(val)
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# File lib/reline/windows.rb, line 286 def self.move_cursor_up(val) if val > 0 y = cursor_pos.y - val y = 0 if y < 0 @@SetConsoleCursorPosition.call(@@hConsoleHandle, y * 65536 + cursor_pos.x) elsif val < 0 move_cursor_down(-val) end end
msys_tty?(io=@@hConsoleInputHandle)
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# File lib/reline/windows.rb, line 160 def self.msys_tty?(io=@@hConsoleInputHandle) # check if fd is a pipe if @@GetFileType.call(io) != FILE_TYPE_PIPE return false end bufsize = 1024 p_buffer = "\0" * bufsize res = @@GetFileInformationByHandleEx.call(io, FILE_NAME_INFO, p_buffer, bufsize - 2) return false if res == 0 # get pipe name: p_buffer layout is: # struct _FILE_NAME_INFO { # DWORD FileNameLength; # WCHAR FileName[1]; # } FILE_NAME_INFO len = p_buffer[0, 4].unpack("L")[0] name = p_buffer[4, len].encode(Encoding::UTF_8, Encoding::UTF_16LE, invalid: :replace) # Check if this could be a MSYS2 pty pipe ('\msys-XXXX-ptyN-XX') # or a cygwin pty pipe ('\cygwin-XXXX-ptyN-XX') name =~ /(msys-|cygwin-).*-pty/ ? true : false end
prep()
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# File lib/reline/windows.rb, line 348 def self.prep # do nothing nil end
process_key_event(repeat_count, virtual_key_code, virtual_scan_code, char_code, control_key_state)
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# File lib/reline/windows.rb, line 202 def self.process_key_event(repeat_count, virtual_key_code, virtual_scan_code, char_code, control_key_state) key = KeyEventRecord.new(virtual_key_code, char_code, control_key_state) match = KEY_MAP.find { |args,| key.matches?(**args) } unless match.nil? @@output_buf.concat(match.last) return end # no char, only control keys return if key.char_code == 0 and key.control_keys.any? @@output_buf.concat(key.char.bytes) end
scroll_down(val)
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# File lib/reline/windows.rb, line 316 def self.scroll_down(val) return if val.zero? screen_height = get_screen_size.first val = screen_height - 1 if val > (screen_height - 1) scroll_rectangle = [0, val, get_screen_size.last, get_screen_size.first].pack('s4') destination_origin = 0 # y * 65536 + x fill = [' '.ord, 0].pack('SS') @@ScrollConsoleScreenBuffer.call(@@hConsoleHandle, scroll_rectangle, nil, destination_origin, fill) end
set_default_key_bindings(config)
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# File lib/reline/windows.rb, line 16 def self.set_default_key_bindings(config) { [224, 72] => :ed_prev_history, # ↑ [224, 80] => :ed_next_history, # ↓ [224, 77] => :ed_next_char, # → [224, 75] => :ed_prev_char, # ← [224, 83] => :key_delete, # Del [224, 71] => :ed_move_to_beg, # Home [224, 79] => :ed_move_to_end, # End [ 0, 41] => :ed_unassigned, # input method on/off [ 0, 72] => :ed_prev_history, # ↑ [ 0, 80] => :ed_next_history, # ↓ [ 0, 77] => :ed_next_char, # → [ 0, 75] => :ed_prev_char, # ← [ 0, 83] => :key_delete, # Del [ 0, 71] => :ed_move_to_beg, # Home [ 0, 79] => :ed_move_to_end # End }.each_pair do |key, func| config.add_default_key_binding_by_keymap(:emacs, key, func) config.add_default_key_binding_by_keymap(:vi_insert, key, func) config.add_default_key_binding_by_keymap(:vi_command, key, func) end { [27, 32] => :em_set_mark, # M-<space> [24, 24] => :em_exchange_mark, # C-x C-x }.each_pair do |key, func| config.add_default_key_binding_by_keymap(:emacs, key, func) end end
set_screen_size(rows, columns)
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# File lib/reline/windows.rb, line 340 def self.set_screen_size(rows, columns) raise NotImplementedError end
set_winch_handler(&handler)
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# File lib/reline/windows.rb, line 344 def self.set_winch_handler(&handler) @@winch_handler = handler end
ungetc(c)
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# File lib/reline/windows.rb, line 250 def self.ungetc(c) @@output_buf.unshift(c) end
win?()
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# File lib/reline/windows.rb, line 8 def self.win? true end
win_legacy_console?()
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# File lib/reline/windows.rb, line 12 def self.win_legacy_console? @@legacy_console end
Private Class Methods
getconsolemode()
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# File lib/reline/windows.rb, line 141 def self.getconsolemode mode = "\000\000\000\000" @@GetConsoleMode.call(@@hConsoleHandle, mode) mode.unpack1('L') end
setconsolemode(mode)
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# File lib/reline/windows.rb, line 147 def self.setconsolemode(mode) @@SetConsoleMode.call(@@hConsoleHandle, mode) end