var Node = require(“./node”),
Selector = require("./selector"), Ruleset = require("./ruleset");
var Directive = function (name, value, rules, index, currentFileInfo, debugInfo, isRooted, visibilityInfo) {
var i; this.name = name; this.value = value; if (rules) { if (Array.isArray(rules)) { this.rules = rules; } else { this.rules = [rules]; this.rules[0].selectors = (new Selector([], null, null, this.index, currentFileInfo)).createEmptySelectors(); } for (i = 0; i < this.rules.length; i++) { this.rules[i].allowImports = true; } } this.index = index; this.currentFileInfo = currentFileInfo; this.debugInfo = debugInfo; this.isRooted = isRooted || false; this.copyVisibilityInfo(visibilityInfo);
};
Directive.prototype = new Node(); Directive.prototype.type = “Directive”; Directive.prototype.accept = function (visitor) {
var value = this.value, rules = this.rules; if (rules) { this.rules = visitor.visitArray(rules); } if (value) { this.value = visitor.visit(value); }
}; Directive.prototype.isRulesetLike = function() {
return this.rules || !this.isCharset();
}; Directive.prototype.isCharset = function() {
return "@charset" === this.name;
}; Directive.prototype.genCSS = function (context, output) {
var value = this.value, rules = this.rules; output.add(this.name, this.currentFileInfo, this.index); if (value) { output.add(' '); value.genCSS(context, output); } if (rules) { this.outputRuleset(context, output, rules); } else { output.add(';'); }
}; Directive.prototype.eval = function (context) {
var mediaPathBackup, mediaBlocksBackup, value = this.value, rules = this.rules; //media stored inside other directive should not bubble over it //backpup media bubbling information mediaPathBackup = context.mediaPath; mediaBlocksBackup = context.mediaBlocks; //deleted media bubbling information context.mediaPath = []; context.mediaBlocks = []; if (value) { value = value.eval(context); } if (rules) { // assuming that there is only one rule at this point - that is how parser constructs the rule rules = [rules[0].eval(context)]; rules[0].root = true; } //restore media bubbling information context.mediaPath = mediaPathBackup; context.mediaBlocks = mediaBlocksBackup; return new Directive(this.name, value, rules, this.index, this.currentFileInfo, this.debugInfo, this.isRooted, this.visibilityInfo());
}; Directive.prototype.variable = function (name) {
if (this.rules) { // assuming that there is only one rule at this point - that is how parser constructs the rule return Ruleset.prototype.variable.call(this.rules[0], name); }
}; Directive.prototype.find = function () {
if (this.rules) { // assuming that there is only one rule at this point - that is how parser constructs the rule return Ruleset.prototype.find.apply(this.rules[0], arguments); }
}; Directive.prototype.rulesets = function () {
if (this.rules) { // assuming that there is only one rule at this point - that is how parser constructs the rule return Ruleset.prototype.rulesets.apply(this.rules[0]); }
}; Directive.prototype.outputRuleset = function (context, output, rules) {
var ruleCnt = rules.length, i; context.tabLevel = (context.tabLevel | 0) + 1; // Compressed if (context.compress) { output.add('{'); for (i = 0; i < ruleCnt; i++) { rules[i].genCSS(context, output); } output.add('}'); context.tabLevel--; return; } // Non-compressed var tabSetStr = '\n' + Array(context.tabLevel).join(" "), tabRuleStr = tabSetStr + " "; if (!ruleCnt) { output.add(" {" + tabSetStr + '}'); } else { output.add(" {" + tabRuleStr); rules[0].genCSS(context, output); for (i = 1; i < ruleCnt; i++) { output.add(tabRuleStr); rules[i].genCSS(context, output); } output.add(tabSetStr + '}'); } context.tabLevel--;
}; module.exports = Directive;