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//.CommonJS
var CSSOM = {
CSSRule: require("./CSSRule").CSSRule,
CSSRuleList: require("./CSSRuleList").CSSRuleList,
parse: require('./parse').parse
};
var errorUtils = require("./errorUtils").errorUtils;
///CommonJS
/**
* @constructor
* @see https://drafts.csswg.org/cssom/#the-cssgroupingrule-interface
*/
CSSOM.CSSGroupingRule = function CSSGroupingRule() {
CSSOM.CSSRule.call(this);
this.__cssRules = new CSSOM.CSSRuleList();
};
CSSOM.CSSGroupingRule.prototype = Object.create(CSSOM.CSSRule.prototype);
CSSOM.CSSGroupingRule.prototype.constructor = CSSOM.CSSGroupingRule;
Object.setPrototypeOf(CSSOM.CSSGroupingRule, CSSOM.CSSRule);
Object.defineProperty(CSSOM.CSSGroupingRule.prototype, "cssRules", {
get: function() {
return this.__cssRules;
}
});
/**
* Used to insert a new CSS rule to a list of CSS rules.
*
* @example
* cssGroupingRule.cssText
* -> "body{margin:0;}"
* cssGroupingRule.insertRule("img{border:none;}", 1)
* -> 1
* cssGroupingRule.cssText
* -> "body{margin:0;}img{border:none;}"
*
* @param {string} rule
* @param {number} [index]
* @see https://www.w3.org/TR/cssom-1/#dom-cssgroupingrule-insertrule
* @return {number} The index within the grouping rule's collection of the newly inserted rule.
*/
CSSOM.CSSGroupingRule.prototype.insertRule = function insertRule(rule, index) {
if (rule === undefined && index === undefined) {
errorUtils.throwMissingArguments(this, 'insertRule', this.constructor.name);
}
if (index === void 0) {
index = 0;
}
index = Number(index);
if (index < 0) {
index = 4294967296 + index;
}
if (index > this.cssRules.length) {
errorUtils.throwIndexError(this, 'insertRule', this.constructor.name, index, this.cssRules.length);
}
var ruleToParse = processedRuleToParse = String(rule);
ruleToParse = ruleToParse.trim().replace(/^\/\*[\s\S]*?\*\/\s*/, "");
var isNestedSelector = this.constructor.name === "CSSStyleRule";
if (isNestedSelector === false) {
var currentRule = this;
while (currentRule.parentRule) {
currentRule = currentRule.parentRule;
if (currentRule.constructor.name === "CSSStyleRule") {
isNestedSelector = true;
break;
}
}
}
if (isNestedSelector) {
processedRuleToParse = 's { n { } ' + ruleToParse + '}';
}
var isScopeRule = this.constructor.name === "CSSScopeRule";
if (isScopeRule) {
if (isNestedSelector) {
processedRuleToParse = 's { ' + '@scope {' + ruleToParse + '}}';
} else {
processedRuleToParse = '@scope {' + ruleToParse + '}';
}
}
var parsedRules = new CSSOM.CSSRuleList();
CSSOM.parse(processedRuleToParse, {
styleSheet: this.parentStyleSheet,
cssRules: parsedRules
});
if (isScopeRule) {
if (isNestedSelector) {
parsedRules = parsedRules[0].cssRules[0].cssRules;
} else {
parsedRules = parsedRules[0].cssRules
}
}
if (isNestedSelector) {
parsedRules = parsedRules[0].cssRules.slice(1);
}
if (parsedRules.length !== 1) {
if (isNestedSelector && parsedRules.length === 0 && ruleToParse.indexOf('@font-face') === 0) {
errorUtils.throwError(this, 'DOMException',
"Failed to execute 'insertRule' on '" + this.constructor.name + "': " +
"Only conditional nested group rules, style rules, @scope rules, @apply rules, and nested declaration rules may be nested.",
'HierarchyRequestError');
} else {
errorUtils.throwParseError(this, 'insertRule', this.constructor.name, ruleToParse, 'SyntaxError');
}
}
var cssRule = parsedRules[0];
if (cssRule.constructor.name === 'CSSNestedDeclarations' && cssRule.style.length === 0) {
errorUtils.throwParseError(this, 'insertRule', this.constructor.name, ruleToParse, 'SyntaxError');
}
// Check for rules that cannot be inserted inside a CSSGroupingRule
if (cssRule.constructor.name === 'CSSImportRule' || cssRule.constructor.name === 'CSSNamespaceRule') {
var ruleKeyword = cssRule.constructor.name === 'CSSImportRule' ? '@import' : '@namespace';
errorUtils.throwError(this, 'DOMException',
"Failed to execute 'insertRule' on '" + this.constructor.name + "': " +
"'" + ruleKeyword + "' rules cannot be inserted inside a group rule.",
'HierarchyRequestError');
}
// Check for CSSLayerStatementRule (@layer statement rules)
if (cssRule.constructor.name === 'CSSLayerStatementRule') {
errorUtils.throwParseError(this, 'insertRule', this.constructor.name, ruleToParse, 'SyntaxError');
}
cssRule.__parentRule = this;
this.cssRules.splice(index, 0, cssRule);
return index;
};
/**
* Used to delete a rule from the grouping rule.
*
* cssGroupingRule.cssText
* -> "img{border:none;}body{margin:0;}"
* cssGroupingRule.deleteRule(0)
* cssGroupingRule.cssText
* -> "body{margin:0;}"
*
* @param {number} index within the grouping rule's rule list of the rule to remove.
* @see https://www.w3.org/TR/cssom-1/#dom-cssgroupingrule-deleterule
*/
CSSOM.CSSGroupingRule.prototype.deleteRule = function deleteRule(index) {
if (index === undefined) {
errorUtils.throwMissingArguments(this, 'deleteRule', this.constructor.name);
}
index = Number(index);
if (index < 0) {
index = 4294967296 + index;
}
if (index >= this.cssRules.length) {
errorUtils.throwIndexError(this, 'deleteRule', this.constructor.name, index, this.cssRules.length);
}
this.cssRules[index].__parentRule = null;
this.cssRules[index].__parentStyleSheet = null;
this.cssRules.splice(index, 1);
};
//.CommonJS
exports.CSSGroupingRule = CSSOM.CSSGroupingRule;
///CommonJS
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