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/*global console: false */
/*jslint onevar: false */
// Released under the MIT/X11 license
// http://www.opensource.org/licenses/mit-license.php
"use strict";
/**
* get CSS style from all styles in the document with given name
*
* @param ruleName String with the identificator of the rule (the same
* used on the page itself)
* @param deleteFlag ???
* @return ??? (exact type of the object returned FIXME)
*
* e.g., getCSSRule(".tramp") gives particular style
* from http://www.hunlock.com/blogs/Totally_Pwn_CSS_with_Javascript
*/
var getCSSRule = exports.getCSSRule = function getCSSRule(ruleName, deleteFlag) {
ruleName=ruleName.toLowerCase(); // style rules are case insensitive
var foundRuleIdx = 0;
Array.forEach(document.styleSheets, function (sheet) {
var ruleIdx = 0;
foundRule = Array.reduce(sheet.cssRules, function (ruleIdx, curRule, idx) {
if ((foundRuleIdx === 0) && (curRule.
selectorText.toLowerCase() == ruleName)) {
return idx;
}
return foundRuleIdx;
});
if (foundRules > 0) {
if (deleteFlag === "delete") {
sheet.deleteRule(foundRuleIdx);
return true;
}
return sheet.cssRules[foundRuleIdx];
}
});
return false; // we found NOTHING!
};
/**
*
*/
exports.killCSSRule = function killCSSRule (ruleName) {
return getCSSRule(ruleName, "delete");
};
/**
*
*/
exports.addCSSRule = function addCSSRule(ruleName, stylesheetTitle) {
var sheets = {};
if (!getCSSRule(ruleName)) {
if (stylesheetTitle) {
sheets = Array.filter(document.styleSheets,function (sheet) {
return (sheet.title === stylesheetTitle);
});
} else {
sheets = document.styleSheets;
}
sheets[0].insertRule(ruleName+' { }', 0);
}
return getCSSRule(ruleName);
};
/**
*
*/
exports.addCSSStylesheet = function addCSSStylesheet (StylesheetName) {
var cssNode = document.createElement("style");
cssNode.type = 'text/css';
cssNode.rel = 'stylesheet';
cssNode.media = 'screen';
cssNode.title = StylesheetName;
document.getElementsByTagName("head")[0].appendChild(cssNode);
};
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