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Direktori : /data/old/home/stash/atlassian/stash/3.7.1/atlassian-stash/static/util/
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Current File : //data/old/home/stash/atlassian/stash/3.7.1/atlassian-stash/static/util/css.js

define('util/css', [
    'util/function'
], function (
    fn
) {
    'use strict';

    function getSheet() {
        var style = document.createElement('style');
        style.appendChild(document.createTextNode(''));
        document.head.appendChild(style);
        return style.sheet;
    }

    var indices = [];

    var sheet = getSheet();

    var cssUtil = {
        chain: function() {
            var removals = [];

            return {
                appendRule: function(ruleString) {
                    removals.push(cssUtil.appendRule(ruleString));
                    return this;
                },
                destroy: function() {
                    fn.applyAll(removals);
                    removals = [];
                }
            };
        },
        appendRule: function(ruleString) {
            var token = {};
            var index = indices.length;
            indices.push(token);
            sheet.insertRule(ruleString, index);

            return function remove() {
                var index = indices.indexOf(token);
                if (index !== -1) {
                    sheet.deleteRule(index);
                    indices.splice(index, 1);
                }
            };
        },
        __sheet : sheet // Visible for testing
    };

    return cssUtil;
});

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