Demo/bin/Debug/front_end/sources/UIList.js

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/*
 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @constructor
 * @extends {WebInspector.VBox}
 */
WebInspector.UIList = function()
{
    WebInspector.VBox.call(this, true);
    this.registerRequiredCSS("sources/uiList.css");

    /** @type {!Array.<!WebInspector.UIList.Item>} */
    this._items = [];
}

WebInspector.UIList._Key = Symbol("ownerList");

WebInspector.UIList.prototype = {
    /**
     * @param {!WebInspector.UIList.Item} item
     * @param {?WebInspector.UIList.Item=} beforeItem
     */
    addItem: function(item, beforeItem)
    {
        item[WebInspector.UIList._Key] = this;
        var beforeElement = beforeItem ? beforeItem.element : null;
        this.contentElement.insertBefore(item.element, beforeElement);

        var index = beforeItem ? this._items.indexOf(beforeItem) : this._items.length;
        console.assert(index >= 0, "Anchor item not found in UIList");
        this._items.splice(index, 0, item);
    },

    /**
     * @param {!WebInspector.UIList.Item} item
     */
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