Demo/bin/Debug/front_end/ui/ResizerWidget.js

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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

/**
 * @constructor
 * @extends {WebInspector.Object}
 */
WebInspector.ResizerWidget = function()
{
    WebInspector.Object.call(this);

    this._isEnabled = true;
    this._elements = [];
    this._installDragOnMouseDownBound = this._installDragOnMouseDown.bind(this);
    this._cursor = "nwse-resize";
};

WebInspector.ResizerWidget.Events = {
    ResizeStart: "ResizeStart",
    ResizeUpdate: "ResizeUpdate",
    ResizeEnd: "ResizeEnd"
};

WebInspector.ResizerWidget.prototype = {
    /**
     * @return {boolean}
     */
    isEnabled: function()
    {
        return this._isEnabled;
    },

    /**
     * @param {boolean} enabled
     */
    setEnabled: function(enabled)
    {
        this._isEnabled = enabled;
        this.updateElementCursors();
    },

    /**
     * @return {!Array.<!Element>}
     */
    elements: function()
    {
        return this._elements.slice();
    },

    /**
     * @param {!Element} element
     */
    addElement: function(element)
    {
        if (this._elements.indexOf(element) !== -1)
            return;

        this._elements.push(element);
        element.addEventListener("mousedown", this._installDragOnMouseDownBound, false);