[625] | 1 | /*! |
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| 2 | * Ext JS Library 3.0.0 |
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| 3 | * Copyright(c) 2006-2009 Ext JS, LLC |
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| 4 | * licensing@extjs.com |
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| 5 | * http://www.extjs.com/license |
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| 6 | */ |
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| 7 | /* |
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| 8 | * These classes are derivatives of the similarly named classes in the YUI Library. |
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| 9 | * The original license: |
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| 10 | * Copyright (c) 2006, Yahoo! Inc. All rights reserved. |
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| 11 | * Code licensed under the BSD License: |
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| 12 | * http://developer.yahoo.net/yui/license.txt |
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| 13 | */ |
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| 14 | |
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| 15 | (function() { |
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| 16 | |
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| 17 | var Event=Ext.EventManager; |
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| 18 | var Dom=Ext.lib.Dom; |
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| 19 | |
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| 20 | /** |
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| 21 | * @class Ext.dd.DragDrop |
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| 22 | * Defines the interface and base operation of items that that can be |
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| 23 | * dragged or can be drop targets. It was designed to be extended, overriding |
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| 24 | * the event handlers for startDrag, onDrag, onDragOver and onDragOut. |
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| 25 | * Up to three html elements can be associated with a DragDrop instance: |
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| 26 | * <ul> |
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| 27 | * <li>linked element: the element that is passed into the constructor. |
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| 28 | * This is the element which defines the boundaries for interaction with |
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| 29 | * other DragDrop objects.</li> |
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| 30 | * <li>handle element(s): The drag operation only occurs if the element that |
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| 31 | * was clicked matches a handle element. By default this is the linked |
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| 32 | * element, but there are times that you will want only a portion of the |
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| 33 | * linked element to initiate the drag operation, and the setHandleElId() |
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| 34 | * method provides a way to define this.</li> |
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| 35 | * <li>drag element: this represents the element that would be moved along |
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| 36 | * with the cursor during a drag operation. By default, this is the linked |
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| 37 | * element itself as in {@link Ext.dd.DD}. setDragElId() lets you define |
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| 38 | * a separate element that would be moved, as in {@link Ext.dd.DDProxy}. |
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| 39 | * </li> |
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| 40 | * </ul> |
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| 41 | * This class should not be instantiated until the onload event to ensure that |
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| 42 | * the associated elements are available. |
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| 43 | * The following would define a DragDrop obj that would interact with any |
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| 44 | * other DragDrop obj in the "group1" group: |
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| 45 | * <pre> |
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| 46 | * dd = new Ext.dd.DragDrop("div1", "group1"); |
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| 47 | * </pre> |
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| 48 | * Since none of the event handlers have been implemented, nothing would |
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| 49 | * actually happen if you were to run the code above. Normally you would |
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| 50 | * override this class or one of the default implementations, but you can |
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| 51 | * also override the methods you want on an instance of the class... |
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| 52 | * <pre> |
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| 53 | * dd.onDragDrop = function(e, id) { |
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| 54 | * alert("dd was dropped on " + id); |
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| 55 | * } |
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| 56 | * </pre> |
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| 57 | * @constructor |
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| 58 | * @param {String} id of the element that is linked to this instance |
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| 59 | * @param {String} sGroup the group of related DragDrop objects |
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| 60 | * @param {object} config an object containing configurable attributes |
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| 61 | * Valid properties for DragDrop: |
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| 62 | * padding, isTarget, maintainOffset, primaryButtonOnly |
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| 63 | */ |
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| 64 | Ext.dd.DragDrop = function(id, sGroup, config) { |
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| 65 | if(id) { |
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| 66 | this.init(id, sGroup, config); |
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| 67 | } |
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| 68 | }; |
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| 69 | |
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| 70 | Ext.dd.DragDrop.prototype = { |
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| 71 | |
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| 72 | /** |
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| 73 | * Set to false to enable a DragDrop object to fire drag events while dragging |
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| 74 | * over its own Element. Defaults to true - DragDrop objects do not by default |
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| 75 | * fire drag events to themselves. |
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| 76 | * @property ignoreSelf |
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| 77 | * @type Boolean |
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| 78 | */ |
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| 79 | |
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| 80 | /** |
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| 81 | * The id of the element associated with this object. This is what we |
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| 82 | * refer to as the "linked element" because the size and position of |
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| 83 | * this element is used to determine when the drag and drop objects have |
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| 84 | * interacted. |
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| 85 | * @property id |
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| 86 | * @type String |
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| 87 | */ |
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| 88 | id: null, |
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| 89 | |
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| 90 | /** |
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| 91 | * Configuration attributes passed into the constructor |
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| 92 | * @property config |
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| 93 | * @type object |
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| 94 | */ |
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| 95 | config: null, |
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| 96 | |
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| 97 | /** |
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| 98 | * The id of the element that will be dragged. By default this is same |
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| 99 | * as the linked element , but could be changed to another element. Ex: |
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| 100 | * Ext.dd.DDProxy |
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| 101 | * @property dragElId |
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| 102 | * @type String |
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| 103 | * @private |
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| 104 | */ |
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| 105 | dragElId: null, |
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| 106 | |
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| 107 | /** |
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| 108 | * The ID of the element that initiates the drag operation. By default |
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| 109 | * this is the linked element, but could be changed to be a child of this |
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| 110 | * element. This lets us do things like only starting the drag when the |
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| 111 | * header element within the linked html element is clicked. |
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| 112 | * @property handleElId |
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| 113 | * @type String |
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| 114 | * @private |
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| 115 | */ |
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| 116 | handleElId: null, |
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| 117 | |
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| 118 | /** |
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| 119 | * An object who's property names identify HTML tags to be considered invalid as drag handles. |
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| 120 | * A non-null property value identifies the tag as invalid. Defaults to the |
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| 121 | * following value which prevents drag operations from being initiated by <a> elements:<pre><code> |
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| 122 | { |
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| 123 | A: "A" |
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| 124 | }</code></pre> |
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| 125 | * @property invalidHandleTypes |
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| 126 | * @type Object |
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| 127 | */ |
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| 128 | invalidHandleTypes: null, |
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| 129 | |
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| 130 | /** |
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| 131 | * An object who's property names identify the IDs of elements to be considered invalid as drag handles. |
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| 132 | * A non-null property value identifies the ID as invalid. For example, to prevent |
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| 133 | * dragging from being initiated on element ID "foo", use:<pre><code> |
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| 134 | { |
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| 135 | foo: true |
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| 136 | }</code></pre> |
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| 137 | * @property invalidHandleIds |
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| 138 | * @type Object |
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| 139 | */ |
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| 140 | invalidHandleIds: null, |
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| 141 | |
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| 142 | /** |
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| 143 | * An Array of CSS class names for elements to be considered in valid as drag handles. |
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| 144 | * @property invalidHandleClasses |
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| 145 | * @type Array |
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| 146 | */ |
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| 147 | invalidHandleClasses: null, |
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| 148 | |
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| 149 | /** |
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| 150 | * The linked element's absolute X position at the time the drag was |
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| 151 | * started |
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| 152 | * @property startPageX |
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| 153 | * @type int |
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| 154 | * @private |
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| 155 | */ |
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| 156 | startPageX: 0, |
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| 157 | |
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| 158 | /** |
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| 159 | * The linked element's absolute X position at the time the drag was |
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| 160 | * started |
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| 161 | * @property startPageY |
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| 162 | * @type int |
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| 163 | * @private |
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| 164 | */ |
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| 165 | startPageY: 0, |
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| 166 | |
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| 167 | /** |
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| 168 | * The group defines a logical collection of DragDrop objects that are |
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| 169 | * related. Instances only get events when interacting with other |
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| 170 | * DragDrop object in the same group. This lets us define multiple |
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| 171 | * groups using a single DragDrop subclass if we want. |
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| 172 | * @property groups |
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| 173 | * @type object An object in the format {'group1':true, 'group2':true} |
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| 174 | */ |
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| 175 | groups: null, |
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| 176 | |
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| 177 | /** |
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| 178 | * Individual drag/drop instances can be locked. This will prevent |
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| 179 | * onmousedown start drag. |
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| 180 | * @property locked |
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| 181 | * @type boolean |
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| 182 | * @private |
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| 183 | */ |
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| 184 | locked: false, |
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| 185 | |
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| 186 | /** |
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| 187 | * Lock this instance |
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| 188 | * @method lock |
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| 189 | */ |
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| 190 | lock: function() { this.locked = true; }, |
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| 191 | |
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| 192 | /** |
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| 193 | * When set to true, other DD objects in cooperating DDGroups do not receive |
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| 194 | * notification events when this DD object is dragged over them. Defaults to false. |
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| 195 | * @property moveOnly |
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| 196 | * @type boolean |
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| 197 | */ |
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| 198 | moveOnly: false, |
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| 199 | |
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| 200 | /** |
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| 201 | * Unlock this instace |
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| 202 | * @method unlock |
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| 203 | */ |
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| 204 | unlock: function() { this.locked = false; }, |
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| 205 | |
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| 206 | /** |
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| 207 | * By default, all instances can be a drop target. This can be disabled by |
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| 208 | * setting isTarget to false. |
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| 209 | * @property isTarget |
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| 210 | * @type boolean |
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| 211 | */ |
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| 212 | isTarget: true, |
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| 213 | |
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| 214 | /** |
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| 215 | * The padding configured for this drag and drop object for calculating |
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| 216 | * the drop zone intersection with this object. |
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| 217 | * @property padding |
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| 218 | * @type int[] An array containing the 4 padding values: [top, right, bottom, left] |
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| 219 | */ |
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| 220 | padding: null, |
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| 221 | |
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| 222 | /** |
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| 223 | * Cached reference to the linked element |
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| 224 | * @property _domRef |
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| 225 | * @private |
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| 226 | */ |
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| 227 | _domRef: null, |
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| 228 | |
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| 229 | /** |
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| 230 | * Internal typeof flag |
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| 231 | * @property __ygDragDrop |
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| 232 | * @private |
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| 233 | */ |
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| 234 | __ygDragDrop: true, |
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| 235 | |
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| 236 | /** |
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| 237 | * Set to true when horizontal contraints are applied |
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| 238 | * @property constrainX |
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| 239 | * @type boolean |
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| 240 | * @private |
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| 241 | */ |
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| 242 | constrainX: false, |
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| 243 | |
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| 244 | /** |
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| 245 | * Set to true when vertical contraints are applied |
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| 246 | * @property constrainY |
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| 247 | * @type boolean |
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| 248 | * @private |
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| 249 | */ |
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| 250 | constrainY: false, |
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| 251 | |
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| 252 | /** |
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| 253 | * The left constraint |
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| 254 | * @property minX |
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| 255 | * @type int |
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| 256 | * @private |
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| 257 | */ |
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| 258 | minX: 0, |
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| 259 | |
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| 260 | /** |
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| 261 | * The right constraint |
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| 262 | * @property maxX |
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| 263 | * @type int |
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| 264 | * @private |
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| 265 | */ |
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| 266 | maxX: 0, |
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| 267 | |
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| 268 | /** |
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| 269 | * The up constraint |
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| 270 | * @property minY |
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| 271 | * @type int |
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| 272 | * @type int |
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| 273 | * @private |
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| 274 | */ |
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| 275 | minY: 0, |
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| 276 | |
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| 277 | /** |
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| 278 | * The down constraint |
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| 279 | * @property maxY |
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| 280 | * @type int |
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| 281 | * @private |
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| 282 | */ |
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| 283 | maxY: 0, |
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| 284 | |
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| 285 | /** |
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| 286 | * Maintain offsets when we resetconstraints. Set to true when you want |
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| 287 | * the position of the element relative to its parent to stay the same |
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| 288 | * when the page changes |
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| 289 | * |
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| 290 | * @property maintainOffset |
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| 291 | * @type boolean |
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| 292 | */ |
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| 293 | maintainOffset: false, |
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| 294 | |
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| 295 | /** |
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| 296 | * Array of pixel locations the element will snap to if we specified a |
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| 297 | * horizontal graduation/interval. This array is generated automatically |
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| 298 | * when you define a tick interval. |
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| 299 | * @property xTicks |
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| 300 | * @type int[] |
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| 301 | */ |
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| 302 | xTicks: null, |
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| 303 | |
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| 304 | /** |
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| 305 | * Array of pixel locations the element will snap to if we specified a |
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| 306 | * vertical graduation/interval. This array is generated automatically |
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| 307 | * when you define a tick interval. |
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| 308 | * @property yTicks |
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| 309 | * @type int[] |
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| 310 | */ |
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| 311 | yTicks: null, |
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| 312 | |
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| 313 | /** |
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| 314 | * By default the drag and drop instance will only respond to the primary |
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| 315 | * button click (left button for a right-handed mouse). Set to true to |
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| 316 | * allow drag and drop to start with any mouse click that is propogated |
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| 317 | * by the browser |
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| 318 | * @property primaryButtonOnly |
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| 319 | * @type boolean |
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| 320 | */ |
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| 321 | primaryButtonOnly: true, |
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| 322 | |
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| 323 | /** |
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| 324 | * The availabe property is false until the linked dom element is accessible. |
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| 325 | * @property available |
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| 326 | * @type boolean |
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| 327 | */ |
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| 328 | available: false, |
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| 329 | |
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| 330 | /** |
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| 331 | * By default, drags can only be initiated if the mousedown occurs in the |
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| 332 | * region the linked element is. This is done in part to work around a |
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| 333 | * bug in some browsers that mis-report the mousedown if the previous |
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| 334 | * mouseup happened outside of the window. This property is set to true |
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| 335 | * if outer handles are defined. |
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| 336 | * |
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| 337 | * @property hasOuterHandles |
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| 338 | * @type boolean |
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| 339 | * @default false |
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| 340 | */ |
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| 341 | hasOuterHandles: false, |
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| 342 | |
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| 343 | /** |
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| 344 | * Code that executes immediately before the startDrag event |
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| 345 | * @method b4StartDrag |
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| 346 | * @private |
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| 347 | */ |
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| 348 | b4StartDrag: function(x, y) { }, |
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| 349 | |
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| 350 | /** |
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| 351 | * Abstract method called after a drag/drop object is clicked |
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| 352 | * and the drag or mousedown time thresholds have beeen met. |
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| 353 | * @method startDrag |
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| 354 | * @param {int} X click location |
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| 355 | * @param {int} Y click location |
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| 356 | */ |
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| 357 | startDrag: function(x, y) { /* override this */ }, |
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| 358 | |
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| 359 | /** |
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| 360 | * Code that executes immediately before the onDrag event |
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| 361 | * @method b4Drag |
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| 362 | * @private |
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| 363 | */ |
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| 364 | b4Drag: function(e) { }, |
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| 365 | |
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| 366 | /** |
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| 367 | * Abstract method called during the onMouseMove event while dragging an |
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| 368 | * object. |
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| 369 | * @method onDrag |
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| 370 | * @param {Event} e the mousemove event |
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| 371 | */ |
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| 372 | onDrag: function(e) { /* override this */ }, |
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| 373 | |
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| 374 | /** |
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| 375 | * Abstract method called when this element fist begins hovering over |
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| 376 | * another DragDrop obj |
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| 377 | * @method onDragEnter |
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| 378 | * @param {Event} e the mousemove event |
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| 379 | * @param {String|DragDrop[]} id In POINT mode, the element |
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| 380 | * id this is hovering over. In INTERSECT mode, an array of one or more |
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| 381 | * dragdrop items being hovered over. |
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| 382 | */ |
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| 383 | onDragEnter: function(e, id) { /* override this */ }, |
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| 384 | |
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| 385 | /** |
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| 386 | * Code that executes immediately before the onDragOver event |
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| 387 | * @method b4DragOver |
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| 388 | * @private |
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| 389 | */ |
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| 390 | b4DragOver: function(e) { }, |
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| 391 | |
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| 392 | /** |
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| 393 | * Abstract method called when this element is hovering over another |
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| 394 | * DragDrop obj |
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| 395 | * @method onDragOver |
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| 396 | * @param {Event} e the mousemove event |
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| 397 | * @param {String|DragDrop[]} id In POINT mode, the element |
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| 398 | * id this is hovering over. In INTERSECT mode, an array of dd items |
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| 399 | * being hovered over. |
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| 400 | */ |
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| 401 | onDragOver: function(e, id) { /* override this */ }, |
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| 402 | |
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| 403 | /** |
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| 404 | * Code that executes immediately before the onDragOut event |
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| 405 | * @method b4DragOut |
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| 406 | * @private |
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| 407 | */ |
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| 408 | b4DragOut: function(e) { }, |
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| 409 | |
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| 410 | /** |
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| 411 | * Abstract method called when we are no longer hovering over an element |
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| 412 | * @method onDragOut |
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| 413 | * @param {Event} e the mousemove event |
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| 414 | * @param {String|DragDrop[]} id In POINT mode, the element |
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| 415 | * id this was hovering over. In INTERSECT mode, an array of dd items |
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| 416 | * that the mouse is no longer over. |
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| 417 | */ |
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| 418 | onDragOut: function(e, id) { /* override this */ }, |
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| 419 | |
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| 420 | /** |
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| 421 | * Code that executes immediately before the onDragDrop event |
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| 422 | * @method b4DragDrop |
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| 423 | * @private |
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| 424 | */ |
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| 425 | b4DragDrop: function(e) { }, |
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| 426 | |
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| 427 | /** |
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| 428 | * Abstract method called when this item is dropped on another DragDrop |
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| 429 | * obj |
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| 430 | * @method onDragDrop |
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| 431 | * @param {Event} e the mouseup event |
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| 432 | * @param {String|DragDrop[]} id In POINT mode, the element |
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| 433 | * id this was dropped on. In INTERSECT mode, an array of dd items this |
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| 434 | * was dropped on. |
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| 435 | */ |
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| 436 | onDragDrop: function(e, id) { /* override this */ }, |
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| 437 | |
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| 438 | /** |
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| 439 | * Abstract method called when this item is dropped on an area with no |
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| 440 | * drop target |
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| 441 | * @method onInvalidDrop |
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| 442 | * @param {Event} e the mouseup event |
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| 443 | */ |
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| 444 | onInvalidDrop: function(e) { /* override this */ }, |
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| 445 | |
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| 446 | /** |
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| 447 | * Code that executes immediately before the endDrag event |
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| 448 | * @method b4EndDrag |
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| 449 | * @private |
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| 450 | */ |
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| 451 | b4EndDrag: function(e) { }, |
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| 452 | |
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| 453 | /** |
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| 454 | * Fired when we are done dragging the object |
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| 455 | * @method endDrag |
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| 456 | * @param {Event} e the mouseup event |
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| 457 | */ |
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| 458 | endDrag: function(e) { /* override this */ }, |
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| 459 | |
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| 460 | /** |
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| 461 | * Code executed immediately before the onMouseDown event |
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| 462 | * @method b4MouseDown |
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| 463 | * @param {Event} e the mousedown event |
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| 464 | * @private |
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| 465 | */ |
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| 466 | b4MouseDown: function(e) { }, |
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| 467 | |
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| 468 | /** |
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| 469 | * Event handler that fires when a drag/drop obj gets a mousedown |
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| 470 | * @method onMouseDown |
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| 471 | * @param {Event} e the mousedown event |
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| 472 | */ |
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| 473 | onMouseDown: function(e) { /* override this */ }, |
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| 474 | |
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| 475 | /** |
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| 476 | * Event handler that fires when a drag/drop obj gets a mouseup |
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| 477 | * @method onMouseUp |
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| 478 | * @param {Event} e the mouseup event |
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| 479 | */ |
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| 480 | onMouseUp: function(e) { /* override this */ }, |
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| 481 | |
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| 482 | /** |
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| 483 | * Override the onAvailable method to do what is needed after the initial |
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| 484 | * position was determined. |
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| 485 | * @method onAvailable |
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| 486 | */ |
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| 487 | onAvailable: function () { |
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| 488 | }, |
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| 489 | |
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| 490 | /** |
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| 491 | * Provides default constraint padding to "constrainTo" elements (defaults to {left: 0, right:0, top:0, bottom:0}). |
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| 492 | * @type Object |
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| 493 | */ |
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| 494 | defaultPadding : {left:0, right:0, top:0, bottom:0}, |
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| 495 | |
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| 496 | /** |
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| 497 | * Initializes the drag drop object's constraints to restrict movement to a certain element. |
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| 498 | * |
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| 499 | * Usage: |
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| 500 | <pre><code> |
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| 501 | var dd = new Ext.dd.DDProxy("dragDiv1", "proxytest", |
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| 502 | { dragElId: "existingProxyDiv" }); |
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| 503 | dd.startDrag = function(){ |
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| 504 | this.constrainTo("parent-id"); |
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| 505 | }; |
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| 506 | </code></pre> |
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| 507 | * Or you can initalize it using the {@link Ext.Element} object: |
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| 508 | <pre><code> |
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| 509 | Ext.get("dragDiv1").initDDProxy("proxytest", {dragElId: "existingProxyDiv"}, { |
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| 510 | startDrag : function(){ |
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| 511 | this.constrainTo("parent-id"); |
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| 512 | } |
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| 513 | }); |
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| 514 | </code></pre> |
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| 515 | * @param {Mixed} constrainTo The element to constrain to. |
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| 516 | * @param {Object/Number} pad (optional) Pad provides a way to specify "padding" of the constraints, |
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| 517 | * and can be either a number for symmetrical padding (4 would be equal to {left:4, right:4, top:4, bottom:4}) or |
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| 518 | * an object containing the sides to pad. For example: {right:10, bottom:10} |
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| 519 | * @param {Boolean} inContent (optional) Constrain the draggable in the content box of the element (inside padding and borders) |
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| 520 | */ |
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| 521 | constrainTo : function(constrainTo, pad, inContent){ |
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| 522 | if(typeof pad == "number"){ |
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| 523 | pad = {left: pad, right:pad, top:pad, bottom:pad}; |
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| 524 | } |
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| 525 | pad = pad || this.defaultPadding; |
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| 526 | var b = Ext.get(this.getEl()).getBox(); |
---|
| 527 | var ce = Ext.get(constrainTo); |
---|
| 528 | var s = ce.getScroll(); |
---|
| 529 | var c, cd = ce.dom; |
---|
| 530 | if(cd == document.body){ |
---|
| 531 | c = { x: s.left, y: s.top, width: Ext.lib.Dom.getViewWidth(), height: Ext.lib.Dom.getViewHeight()}; |
---|
| 532 | }else{ |
---|
| 533 | var xy = ce.getXY(); |
---|
| 534 | c = {x : xy[0]+s.left, y: xy[1]+s.top, width: cd.clientWidth, height: cd.clientHeight}; |
---|
| 535 | } |
---|
| 536 | |
---|
| 537 | |
---|
| 538 | var topSpace = b.y - c.y; |
---|
| 539 | var leftSpace = b.x - c.x; |
---|
| 540 | |
---|
| 541 | this.resetConstraints(); |
---|
| 542 | this.setXConstraint(leftSpace - (pad.left||0), // left |
---|
| 543 | c.width - leftSpace - b.width - (pad.right||0), //right |
---|
| 544 | this.xTickSize |
---|
| 545 | ); |
---|
| 546 | this.setYConstraint(topSpace - (pad.top||0), //top |
---|
| 547 | c.height - topSpace - b.height - (pad.bottom||0), //bottom |
---|
| 548 | this.yTickSize |
---|
| 549 | ); |
---|
| 550 | }, |
---|
| 551 | |
---|
| 552 | /** |
---|
| 553 | * Returns a reference to the linked element |
---|
| 554 | * @method getEl |
---|
| 555 | * @return {HTMLElement} the html element |
---|
| 556 | */ |
---|
| 557 | getEl: function() { |
---|
| 558 | if (!this._domRef) { |
---|
| 559 | this._domRef = Ext.getDom(this.id); |
---|
| 560 | } |
---|
| 561 | |
---|
| 562 | return this._domRef; |
---|
| 563 | }, |
---|
| 564 | |
---|
| 565 | /** |
---|
| 566 | * Returns a reference to the actual element to drag. By default this is |
---|
| 567 | * the same as the html element, but it can be assigned to another |
---|
| 568 | * element. An example of this can be found in Ext.dd.DDProxy |
---|
| 569 | * @method getDragEl |
---|
| 570 | * @return {HTMLElement} the html element |
---|
| 571 | */ |
---|
| 572 | getDragEl: function() { |
---|
| 573 | return Ext.getDom(this.dragElId); |
---|
| 574 | }, |
---|
| 575 | |
---|
| 576 | /** |
---|
| 577 | * Sets up the DragDrop object. Must be called in the constructor of any |
---|
| 578 | * Ext.dd.DragDrop subclass |
---|
| 579 | * @method init |
---|
| 580 | * @param id the id of the linked element |
---|
| 581 | * @param {String} sGroup the group of related items |
---|
| 582 | * @param {object} config configuration attributes |
---|
| 583 | */ |
---|
| 584 | init: function(id, sGroup, config) { |
---|
| 585 | this.initTarget(id, sGroup, config); |
---|
| 586 | Event.on(this.id, "mousedown", this.handleMouseDown, this); |
---|
| 587 | // Event.on(this.id, "selectstart", Event.preventDefault); |
---|
| 588 | }, |
---|
| 589 | |
---|
| 590 | /** |
---|
| 591 | * Initializes Targeting functionality only... the object does not |
---|
| 592 | * get a mousedown handler. |
---|
| 593 | * @method initTarget |
---|
| 594 | * @param id the id of the linked element |
---|
| 595 | * @param {String} sGroup the group of related items |
---|
| 596 | * @param {object} config configuration attributes |
---|
| 597 | */ |
---|
| 598 | initTarget: function(id, sGroup, config) { |
---|
| 599 | |
---|
| 600 | // configuration attributes |
---|
| 601 | this.config = config || {}; |
---|
| 602 | |
---|
| 603 | // create a local reference to the drag and drop manager |
---|
| 604 | this.DDM = Ext.dd.DDM; |
---|
| 605 | // initialize the groups array |
---|
| 606 | this.groups = {}; |
---|
| 607 | |
---|
| 608 | // assume that we have an element reference instead of an id if the |
---|
| 609 | // parameter is not a string |
---|
| 610 | if (typeof id !== "string") { |
---|
| 611 | id = Ext.id(id); |
---|
| 612 | } |
---|
| 613 | |
---|
| 614 | // set the id |
---|
| 615 | this.id = id; |
---|
| 616 | |
---|
| 617 | // add to an interaction group |
---|
| 618 | this.addToGroup((sGroup) ? sGroup : "default"); |
---|
| 619 | |
---|
| 620 | // We don't want to register this as the handle with the manager |
---|
| 621 | // so we just set the id rather than calling the setter. |
---|
| 622 | this.handleElId = id; |
---|
| 623 | |
---|
| 624 | // the linked element is the element that gets dragged by default |
---|
| 625 | this.setDragElId(id); |
---|
| 626 | |
---|
| 627 | // by default, clicked anchors will not start drag operations. |
---|
| 628 | this.invalidHandleTypes = { A: "A" }; |
---|
| 629 | this.invalidHandleIds = {}; |
---|
| 630 | this.invalidHandleClasses = []; |
---|
| 631 | |
---|
| 632 | this.applyConfig(); |
---|
| 633 | |
---|
| 634 | this.handleOnAvailable(); |
---|
| 635 | }, |
---|
| 636 | |
---|
| 637 | /** |
---|
| 638 | * Applies the configuration parameters that were passed into the constructor. |
---|
| 639 | * This is supposed to happen at each level through the inheritance chain. So |
---|
| 640 | * a DDProxy implentation will execute apply config on DDProxy, DD, and |
---|
| 641 | * DragDrop in order to get all of the parameters that are available in |
---|
| 642 | * each object. |
---|
| 643 | * @method applyConfig |
---|
| 644 | */ |
---|
| 645 | applyConfig: function() { |
---|
| 646 | |
---|
| 647 | // configurable properties: |
---|
| 648 | // padding, isTarget, maintainOffset, primaryButtonOnly |
---|
| 649 | this.padding = this.config.padding || [0, 0, 0, 0]; |
---|
| 650 | this.isTarget = (this.config.isTarget !== false); |
---|
| 651 | this.maintainOffset = (this.config.maintainOffset); |
---|
| 652 | this.primaryButtonOnly = (this.config.primaryButtonOnly !== false); |
---|
| 653 | |
---|
| 654 | }, |
---|
| 655 | |
---|
| 656 | /** |
---|
| 657 | * Executed when the linked element is available |
---|
| 658 | * @method handleOnAvailable |
---|
| 659 | * @private |
---|
| 660 | */ |
---|
| 661 | handleOnAvailable: function() { |
---|
| 662 | this.available = true; |
---|
| 663 | this.resetConstraints(); |
---|
| 664 | this.onAvailable(); |
---|
| 665 | }, |
---|
| 666 | |
---|
| 667 | /** |
---|
| 668 | * Configures the padding for the target zone in px. Effectively expands |
---|
| 669 | * (or reduces) the virtual object size for targeting calculations. |
---|
| 670 | * Supports css-style shorthand; if only one parameter is passed, all sides |
---|
| 671 | * will have that padding, and if only two are passed, the top and bottom |
---|
| 672 | * will have the first param, the left and right the second. |
---|
| 673 | * @method setPadding |
---|
| 674 | * @param {int} iTop Top pad |
---|
| 675 | * @param {int} iRight Right pad |
---|
| 676 | * @param {int} iBot Bot pad |
---|
| 677 | * @param {int} iLeft Left pad |
---|
| 678 | */ |
---|
| 679 | setPadding: function(iTop, iRight, iBot, iLeft) { |
---|
| 680 | // this.padding = [iLeft, iRight, iTop, iBot]; |
---|
| 681 | if (!iRight && 0 !== iRight) { |
---|
| 682 | this.padding = [iTop, iTop, iTop, iTop]; |
---|
| 683 | } else if (!iBot && 0 !== iBot) { |
---|
| 684 | this.padding = [iTop, iRight, iTop, iRight]; |
---|
| 685 | } else { |
---|
| 686 | this.padding = [iTop, iRight, iBot, iLeft]; |
---|
| 687 | } |
---|
| 688 | }, |
---|
| 689 | |
---|
| 690 | /** |
---|
| 691 | * Stores the initial placement of the linked element. |
---|
| 692 | * @method setInitPosition |
---|
| 693 | * @param {int} diffX the X offset, default 0 |
---|
| 694 | * @param {int} diffY the Y offset, default 0 |
---|
| 695 | */ |
---|
| 696 | setInitPosition: function(diffX, diffY) { |
---|
| 697 | var el = this.getEl(); |
---|
| 698 | |
---|
| 699 | if (!this.DDM.verifyEl(el)) { |
---|
| 700 | return; |
---|
| 701 | } |
---|
| 702 | |
---|
| 703 | var dx = diffX || 0; |
---|
| 704 | var dy = diffY || 0; |
---|
| 705 | |
---|
| 706 | var p = Dom.getXY( el ); |
---|
| 707 | |
---|
| 708 | this.initPageX = p[0] - dx; |
---|
| 709 | this.initPageY = p[1] - dy; |
---|
| 710 | |
---|
| 711 | this.lastPageX = p[0]; |
---|
| 712 | this.lastPageY = p[1]; |
---|
| 713 | |
---|
| 714 | |
---|
| 715 | this.setStartPosition(p); |
---|
| 716 | }, |
---|
| 717 | |
---|
| 718 | /** |
---|
| 719 | * Sets the start position of the element. This is set when the obj |
---|
| 720 | * is initialized, the reset when a drag is started. |
---|
| 721 | * @method setStartPosition |
---|
| 722 | * @param pos current position (from previous lookup) |
---|
| 723 | * @private |
---|
| 724 | */ |
---|
| 725 | setStartPosition: function(pos) { |
---|
| 726 | var p = pos || Dom.getXY( this.getEl() ); |
---|
| 727 | this.deltaSetXY = null; |
---|
| 728 | |
---|
| 729 | this.startPageX = p[0]; |
---|
| 730 | this.startPageY = p[1]; |
---|
| 731 | }, |
---|
| 732 | |
---|
| 733 | /** |
---|
| 734 | * Add this instance to a group of related drag/drop objects. All |
---|
| 735 | * instances belong to at least one group, and can belong to as many |
---|
| 736 | * groups as needed. |
---|
| 737 | * @method addToGroup |
---|
| 738 | * @param sGroup {string} the name of the group |
---|
| 739 | */ |
---|
| 740 | addToGroup: function(sGroup) { |
---|
| 741 | this.groups[sGroup] = true; |
---|
| 742 | this.DDM.regDragDrop(this, sGroup); |
---|
| 743 | }, |
---|
| 744 | |
---|
| 745 | /** |
---|
| 746 | * Remove's this instance from the supplied interaction group |
---|
| 747 | * @method removeFromGroup |
---|
| 748 | * @param {string} sGroup The group to drop |
---|
| 749 | */ |
---|
| 750 | removeFromGroup: function(sGroup) { |
---|
| 751 | if (this.groups[sGroup]) { |
---|
| 752 | delete this.groups[sGroup]; |
---|
| 753 | } |
---|
| 754 | |
---|
| 755 | this.DDM.removeDDFromGroup(this, sGroup); |
---|
| 756 | }, |
---|
| 757 | |
---|
| 758 | /** |
---|
| 759 | * Allows you to specify that an element other than the linked element |
---|
| 760 | * will be moved with the cursor during a drag |
---|
| 761 | * @method setDragElId |
---|
| 762 | * @param id {string} the id of the element that will be used to initiate the drag |
---|
| 763 | */ |
---|
| 764 | setDragElId: function(id) { |
---|
| 765 | this.dragElId = id; |
---|
| 766 | }, |
---|
| 767 | |
---|
| 768 | /** |
---|
| 769 | * Allows you to specify a child of the linked element that should be |
---|
| 770 | * used to initiate the drag operation. An example of this would be if |
---|
| 771 | * you have a content div with text and links. Clicking anywhere in the |
---|
| 772 | * content area would normally start the drag operation. Use this method |
---|
| 773 | * to specify that an element inside of the content div is the element |
---|
| 774 | * that starts the drag operation. |
---|
| 775 | * @method setHandleElId |
---|
| 776 | * @param id {string} the id of the element that will be used to |
---|
| 777 | * initiate the drag. |
---|
| 778 | */ |
---|
| 779 | setHandleElId: function(id) { |
---|
| 780 | if (typeof id !== "string") { |
---|
| 781 | id = Ext.id(id); |
---|
| 782 | } |
---|
| 783 | this.handleElId = id; |
---|
| 784 | this.DDM.regHandle(this.id, id); |
---|
| 785 | }, |
---|
| 786 | |
---|
| 787 | /** |
---|
| 788 | * Allows you to set an element outside of the linked element as a drag |
---|
| 789 | * handle |
---|
| 790 | * @method setOuterHandleElId |
---|
| 791 | * @param id the id of the element that will be used to initiate the drag |
---|
| 792 | */ |
---|
| 793 | setOuterHandleElId: function(id) { |
---|
| 794 | if (typeof id !== "string") { |
---|
| 795 | id = Ext.id(id); |
---|
| 796 | } |
---|
| 797 | Event.on(id, "mousedown", |
---|
| 798 | this.handleMouseDown, this); |
---|
| 799 | this.setHandleElId(id); |
---|
| 800 | |
---|
| 801 | this.hasOuterHandles = true; |
---|
| 802 | }, |
---|
| 803 | |
---|
| 804 | /** |
---|
| 805 | * Remove all drag and drop hooks for this element |
---|
| 806 | * @method unreg |
---|
| 807 | */ |
---|
| 808 | unreg: function() { |
---|
| 809 | Event.un(this.id, "mousedown", |
---|
| 810 | this.handleMouseDown); |
---|
| 811 | this._domRef = null; |
---|
| 812 | this.DDM._remove(this); |
---|
| 813 | }, |
---|
| 814 | |
---|
| 815 | destroy : function(){ |
---|
| 816 | this.unreg(); |
---|
| 817 | }, |
---|
| 818 | |
---|
| 819 | /** |
---|
| 820 | * Returns true if this instance is locked, or the drag drop mgr is locked |
---|
| 821 | * (meaning that all drag/drop is disabled on the page.) |
---|
| 822 | * @method isLocked |
---|
| 823 | * @return {boolean} true if this obj or all drag/drop is locked, else |
---|
| 824 | * false |
---|
| 825 | */ |
---|
| 826 | isLocked: function() { |
---|
| 827 | return (this.DDM.isLocked() || this.locked); |
---|
| 828 | }, |
---|
| 829 | |
---|
| 830 | /** |
---|
| 831 | * Fired when this object is clicked |
---|
| 832 | * @method handleMouseDown |
---|
| 833 | * @param {Event} e |
---|
| 834 | * @param {Ext.dd.DragDrop} oDD the clicked dd object (this dd obj) |
---|
| 835 | * @private |
---|
| 836 | */ |
---|
| 837 | handleMouseDown: function(e, oDD){ |
---|
| 838 | if (this.primaryButtonOnly && e.button != 0) { |
---|
| 839 | return; |
---|
| 840 | } |
---|
| 841 | |
---|
| 842 | if (this.isLocked()) { |
---|
| 843 | return; |
---|
| 844 | } |
---|
| 845 | |
---|
| 846 | this.DDM.refreshCache(this.groups); |
---|
| 847 | |
---|
| 848 | var pt = new Ext.lib.Point(Ext.lib.Event.getPageX(e), Ext.lib.Event.getPageY(e)); |
---|
| 849 | if (!this.hasOuterHandles && !this.DDM.isOverTarget(pt, this) ) { |
---|
| 850 | } else { |
---|
| 851 | if (this.clickValidator(e)) { |
---|
| 852 | |
---|
| 853 | // set the initial element position |
---|
| 854 | this.setStartPosition(); |
---|
| 855 | |
---|
| 856 | |
---|
| 857 | this.b4MouseDown(e); |
---|
| 858 | this.onMouseDown(e); |
---|
| 859 | |
---|
| 860 | this.DDM.handleMouseDown(e, this); |
---|
| 861 | |
---|
| 862 | this.DDM.stopEvent(e); |
---|
| 863 | } else { |
---|
| 864 | |
---|
| 865 | |
---|
| 866 | } |
---|
| 867 | } |
---|
| 868 | }, |
---|
| 869 | |
---|
| 870 | clickValidator: function(e) { |
---|
| 871 | var target = e.getTarget(); |
---|
| 872 | return ( this.isValidHandleChild(target) && |
---|
| 873 | (this.id == this.handleElId || |
---|
| 874 | this.DDM.handleWasClicked(target, this.id)) ); |
---|
| 875 | }, |
---|
| 876 | |
---|
| 877 | /** |
---|
| 878 | * Allows you to specify a tag name that should not start a drag operation |
---|
| 879 | * when clicked. This is designed to facilitate embedding links within a |
---|
| 880 | * drag handle that do something other than start the drag. |
---|
| 881 | * @method addInvalidHandleType |
---|
| 882 | * @param {string} tagName the type of element to exclude |
---|
| 883 | */ |
---|
| 884 | addInvalidHandleType: function(tagName) { |
---|
| 885 | var type = tagName.toUpperCase(); |
---|
| 886 | this.invalidHandleTypes[type] = type; |
---|
| 887 | }, |
---|
| 888 | |
---|
| 889 | /** |
---|
| 890 | * Lets you to specify an element id for a child of a drag handle |
---|
| 891 | * that should not initiate a drag |
---|
| 892 | * @method addInvalidHandleId |
---|
| 893 | * @param {string} id the element id of the element you wish to ignore |
---|
| 894 | */ |
---|
| 895 | addInvalidHandleId: function(id) { |
---|
| 896 | if (typeof id !== "string") { |
---|
| 897 | id = Ext.id(id); |
---|
| 898 | } |
---|
| 899 | this.invalidHandleIds[id] = id; |
---|
| 900 | }, |
---|
| 901 | |
---|
| 902 | /** |
---|
| 903 | * Lets you specify a css class of elements that will not initiate a drag |
---|
| 904 | * @method addInvalidHandleClass |
---|
| 905 | * @param {string} cssClass the class of the elements you wish to ignore |
---|
| 906 | */ |
---|
| 907 | addInvalidHandleClass: function(cssClass) { |
---|
| 908 | this.invalidHandleClasses.push(cssClass); |
---|
| 909 | }, |
---|
| 910 | |
---|
| 911 | /** |
---|
| 912 | * Unsets an excluded tag name set by addInvalidHandleType |
---|
| 913 | * @method removeInvalidHandleType |
---|
| 914 | * @param {string} tagName the type of element to unexclude |
---|
| 915 | */ |
---|
| 916 | removeInvalidHandleType: function(tagName) { |
---|
| 917 | var type = tagName.toUpperCase(); |
---|
| 918 | // this.invalidHandleTypes[type] = null; |
---|
| 919 | delete this.invalidHandleTypes[type]; |
---|
| 920 | }, |
---|
| 921 | |
---|
| 922 | /** |
---|
| 923 | * Unsets an invalid handle id |
---|
| 924 | * @method removeInvalidHandleId |
---|
| 925 | * @param {string} id the id of the element to re-enable |
---|
| 926 | */ |
---|
| 927 | removeInvalidHandleId: function(id) { |
---|
| 928 | if (typeof id !== "string") { |
---|
| 929 | id = Ext.id(id); |
---|
| 930 | } |
---|
| 931 | delete this.invalidHandleIds[id]; |
---|
| 932 | }, |
---|
| 933 | |
---|
| 934 | /** |
---|
| 935 | * Unsets an invalid css class |
---|
| 936 | * @method removeInvalidHandleClass |
---|
| 937 | * @param {string} cssClass the class of the element(s) you wish to |
---|
| 938 | * re-enable |
---|
| 939 | */ |
---|
| 940 | removeInvalidHandleClass: function(cssClass) { |
---|
| 941 | for (var i=0, len=this.invalidHandleClasses.length; i<len; ++i) { |
---|
| 942 | if (this.invalidHandleClasses[i] == cssClass) { |
---|
| 943 | delete this.invalidHandleClasses[i]; |
---|
| 944 | } |
---|
| 945 | } |
---|
| 946 | }, |
---|
| 947 | |
---|
| 948 | /** |
---|
| 949 | * Checks the tag exclusion list to see if this click should be ignored |
---|
| 950 | * @method isValidHandleChild |
---|
| 951 | * @param {HTMLElement} node the HTMLElement to evaluate |
---|
| 952 | * @return {boolean} true if this is a valid tag type, false if not |
---|
| 953 | */ |
---|
| 954 | isValidHandleChild: function(node) { |
---|
| 955 | |
---|
| 956 | var valid = true; |
---|
| 957 | // var n = (node.nodeName == "#text") ? node.parentNode : node; |
---|
| 958 | var nodeName; |
---|
| 959 | try { |
---|
| 960 | nodeName = node.nodeName.toUpperCase(); |
---|
| 961 | } catch(e) { |
---|
| 962 | nodeName = node.nodeName; |
---|
| 963 | } |
---|
| 964 | valid = valid && !this.invalidHandleTypes[nodeName]; |
---|
| 965 | valid = valid && !this.invalidHandleIds[node.id]; |
---|
| 966 | |
---|
| 967 | for (var i=0, len=this.invalidHandleClasses.length; valid && i<len; ++i) { |
---|
| 968 | valid = !Ext.fly(node).hasClass(this.invalidHandleClasses[i]); |
---|
| 969 | } |
---|
| 970 | |
---|
| 971 | |
---|
| 972 | return valid; |
---|
| 973 | |
---|
| 974 | }, |
---|
| 975 | |
---|
| 976 | /** |
---|
| 977 | * Create the array of horizontal tick marks if an interval was specified |
---|
| 978 | * in setXConstraint(). |
---|
| 979 | * @method setXTicks |
---|
| 980 | * @private |
---|
| 981 | */ |
---|
| 982 | setXTicks: function(iStartX, iTickSize) { |
---|
| 983 | this.xTicks = []; |
---|
| 984 | this.xTickSize = iTickSize; |
---|
| 985 | |
---|
| 986 | var tickMap = {}; |
---|
| 987 | |
---|
| 988 | for (var i = this.initPageX; i >= this.minX; i = i - iTickSize) { |
---|
| 989 | if (!tickMap[i]) { |
---|
| 990 | this.xTicks[this.xTicks.length] = i; |
---|
| 991 | tickMap[i] = true; |
---|
| 992 | } |
---|
| 993 | } |
---|
| 994 | |
---|
| 995 | for (i = this.initPageX; i <= this.maxX; i = i + iTickSize) { |
---|
| 996 | if (!tickMap[i]) { |
---|
| 997 | this.xTicks[this.xTicks.length] = i; |
---|
| 998 | tickMap[i] = true; |
---|
| 999 | } |
---|
| 1000 | } |
---|
| 1001 | |
---|
| 1002 | this.xTicks.sort(this.DDM.numericSort) ; |
---|
| 1003 | }, |
---|
| 1004 | |
---|
| 1005 | /** |
---|
| 1006 | * Create the array of vertical tick marks if an interval was specified in |
---|
| 1007 | * setYConstraint(). |
---|
| 1008 | * @method setYTicks |
---|
| 1009 | * @private |
---|
| 1010 | */ |
---|
| 1011 | setYTicks: function(iStartY, iTickSize) { |
---|
| 1012 | this.yTicks = []; |
---|
| 1013 | this.yTickSize = iTickSize; |
---|
| 1014 | |
---|
| 1015 | var tickMap = {}; |
---|
| 1016 | |
---|
| 1017 | for (var i = this.initPageY; i >= this.minY; i = i - iTickSize) { |
---|
| 1018 | if (!tickMap[i]) { |
---|
| 1019 | this.yTicks[this.yTicks.length] = i; |
---|
| 1020 | tickMap[i] = true; |
---|
| 1021 | } |
---|
| 1022 | } |
---|
| 1023 | |
---|
| 1024 | for (i = this.initPageY; i <= this.maxY; i = i + iTickSize) { |
---|
| 1025 | if (!tickMap[i]) { |
---|
| 1026 | this.yTicks[this.yTicks.length] = i; |
---|
| 1027 | tickMap[i] = true; |
---|
| 1028 | } |
---|
| 1029 | } |
---|
| 1030 | |
---|
| 1031 | this.yTicks.sort(this.DDM.numericSort) ; |
---|
| 1032 | }, |
---|
| 1033 | |
---|
| 1034 | /** |
---|
| 1035 | * By default, the element can be dragged any place on the screen. Use |
---|
| 1036 | * this method to limit the horizontal travel of the element. Pass in |
---|
| 1037 | * 0,0 for the parameters if you want to lock the drag to the y axis. |
---|
| 1038 | * @method setXConstraint |
---|
| 1039 | * @param {int} iLeft the number of pixels the element can move to the left |
---|
| 1040 | * @param {int} iRight the number of pixels the element can move to the |
---|
| 1041 | * right |
---|
| 1042 | * @param {int} iTickSize optional parameter for specifying that the |
---|
| 1043 | * element |
---|
| 1044 | * should move iTickSize pixels at a time. |
---|
| 1045 | */ |
---|
| 1046 | setXConstraint: function(iLeft, iRight, iTickSize) { |
---|
| 1047 | this.leftConstraint = iLeft; |
---|
| 1048 | this.rightConstraint = iRight; |
---|
| 1049 | |
---|
| 1050 | this.minX = this.initPageX - iLeft; |
---|
| 1051 | this.maxX = this.initPageX + iRight; |
---|
| 1052 | if (iTickSize) { this.setXTicks(this.initPageX, iTickSize); } |
---|
| 1053 | |
---|
| 1054 | this.constrainX = true; |
---|
| 1055 | }, |
---|
| 1056 | |
---|
| 1057 | /** |
---|
| 1058 | * Clears any constraints applied to this instance. Also clears ticks |
---|
| 1059 | * since they can't exist independent of a constraint at this time. |
---|
| 1060 | * @method clearConstraints |
---|
| 1061 | */ |
---|
| 1062 | clearConstraints: function() { |
---|
| 1063 | this.constrainX = false; |
---|
| 1064 | this.constrainY = false; |
---|
| 1065 | this.clearTicks(); |
---|
| 1066 | }, |
---|
| 1067 | |
---|
| 1068 | /** |
---|
| 1069 | * Clears any tick interval defined for this instance |
---|
| 1070 | * @method clearTicks |
---|
| 1071 | */ |
---|
| 1072 | clearTicks: function() { |
---|
| 1073 | this.xTicks = null; |
---|
| 1074 | this.yTicks = null; |
---|
| 1075 | this.xTickSize = 0; |
---|
| 1076 | this.yTickSize = 0; |
---|
| 1077 | }, |
---|
| 1078 | |
---|
| 1079 | /** |
---|
| 1080 | * By default, the element can be dragged any place on the screen. Set |
---|
| 1081 | * this to limit the vertical travel of the element. Pass in 0,0 for the |
---|
| 1082 | * parameters if you want to lock the drag to the x axis. |
---|
| 1083 | * @method setYConstraint |
---|
| 1084 | * @param {int} iUp the number of pixels the element can move up |
---|
| 1085 | * @param {int} iDown the number of pixels the element can move down |
---|
| 1086 | * @param {int} iTickSize optional parameter for specifying that the |
---|
| 1087 | * element should move iTickSize pixels at a time. |
---|
| 1088 | */ |
---|
| 1089 | setYConstraint: function(iUp, iDown, iTickSize) { |
---|
| 1090 | this.topConstraint = iUp; |
---|
| 1091 | this.bottomConstraint = iDown; |
---|
| 1092 | |
---|
| 1093 | this.minY = this.initPageY - iUp; |
---|
| 1094 | this.maxY = this.initPageY + iDown; |
---|
| 1095 | if (iTickSize) { this.setYTicks(this.initPageY, iTickSize); } |
---|
| 1096 | |
---|
| 1097 | this.constrainY = true; |
---|
| 1098 | |
---|
| 1099 | }, |
---|
| 1100 | |
---|
| 1101 | /** |
---|
| 1102 | * resetConstraints must be called if you manually reposition a dd element. |
---|
| 1103 | * @method resetConstraints |
---|
| 1104 | * @param {boolean} maintainOffset |
---|
| 1105 | */ |
---|
| 1106 | resetConstraints: function() { |
---|
| 1107 | |
---|
| 1108 | |
---|
| 1109 | // Maintain offsets if necessary |
---|
| 1110 | if (this.initPageX || this.initPageX === 0) { |
---|
| 1111 | // figure out how much this thing has moved |
---|
| 1112 | var dx = (this.maintainOffset) ? this.lastPageX - this.initPageX : 0; |
---|
| 1113 | var dy = (this.maintainOffset) ? this.lastPageY - this.initPageY : 0; |
---|
| 1114 | |
---|
| 1115 | this.setInitPosition(dx, dy); |
---|
| 1116 | |
---|
| 1117 | // This is the first time we have detected the element's position |
---|
| 1118 | } else { |
---|
| 1119 | this.setInitPosition(); |
---|
| 1120 | } |
---|
| 1121 | |
---|
| 1122 | if (this.constrainX) { |
---|
| 1123 | this.setXConstraint( this.leftConstraint, |
---|
| 1124 | this.rightConstraint, |
---|
| 1125 | this.xTickSize ); |
---|
| 1126 | } |
---|
| 1127 | |
---|
| 1128 | if (this.constrainY) { |
---|
| 1129 | this.setYConstraint( this.topConstraint, |
---|
| 1130 | this.bottomConstraint, |
---|
| 1131 | this.yTickSize ); |
---|
| 1132 | } |
---|
| 1133 | }, |
---|
| 1134 | |
---|
| 1135 | /** |
---|
| 1136 | * Normally the drag element is moved pixel by pixel, but we can specify |
---|
| 1137 | * that it move a number of pixels at a time. This method resolves the |
---|
| 1138 | * location when we have it set up like this. |
---|
| 1139 | * @method getTick |
---|
| 1140 | * @param {int} val where we want to place the object |
---|
| 1141 | * @param {int[]} tickArray sorted array of valid points |
---|
| 1142 | * @return {int} the closest tick |
---|
| 1143 | * @private |
---|
| 1144 | */ |
---|
| 1145 | getTick: function(val, tickArray) { |
---|
| 1146 | |
---|
| 1147 | if (!tickArray) { |
---|
| 1148 | // If tick interval is not defined, it is effectively 1 pixel, |
---|
| 1149 | // so we return the value passed to us. |
---|
| 1150 | return val; |
---|
| 1151 | } else if (tickArray[0] >= val) { |
---|
| 1152 | // The value is lower than the first tick, so we return the first |
---|
| 1153 | // tick. |
---|
| 1154 | return tickArray[0]; |
---|
| 1155 | } else { |
---|
| 1156 | for (var i=0, len=tickArray.length; i<len; ++i) { |
---|
| 1157 | var next = i + 1; |
---|
| 1158 | if (tickArray[next] && tickArray[next] >= val) { |
---|
| 1159 | var diff1 = val - tickArray[i]; |
---|
| 1160 | var diff2 = tickArray[next] - val; |
---|
| 1161 | return (diff2 > diff1) ? tickArray[i] : tickArray[next]; |
---|
| 1162 | } |
---|
| 1163 | } |
---|
| 1164 | |
---|
| 1165 | // The value is larger than the last tick, so we return the last |
---|
| 1166 | // tick. |
---|
| 1167 | return tickArray[tickArray.length - 1]; |
---|
| 1168 | } |
---|
| 1169 | }, |
---|
| 1170 | |
---|
| 1171 | /** |
---|
| 1172 | * toString method |
---|
| 1173 | * @method toString |
---|
| 1174 | * @return {string} string representation of the dd obj |
---|
| 1175 | */ |
---|
| 1176 | toString: function() { |
---|
| 1177 | return ("DragDrop " + this.id); |
---|
| 1178 | } |
---|
| 1179 | |
---|
| 1180 | }; |
---|
| 1181 | |
---|
| 1182 | })(); |
---|
| 1183 | /** |
---|
| 1184 | * The drag and drop utility provides a framework for building drag and drop |
---|
| 1185 | * applications. In addition to enabling drag and drop for specific elements, |
---|
| 1186 | * the drag and drop elements are tracked by the manager class, and the |
---|
| 1187 | * interactions between the various elements are tracked during the drag and |
---|
| 1188 | * the implementing code is notified about these important moments. |
---|
| 1189 | */ |
---|
| 1190 | |
---|
| 1191 | // Only load the library once. Rewriting the manager class would orphan |
---|
| 1192 | // existing drag and drop instances. |
---|
| 1193 | if (!Ext.dd.DragDropMgr) { |
---|
| 1194 | |
---|
| 1195 | /** |
---|
| 1196 | * @class Ext.dd.DragDropMgr |
---|
| 1197 | * DragDropMgr is a singleton that tracks the element interaction for |
---|
| 1198 | * all DragDrop items in the window. Generally, you will not call |
---|
| 1199 | * this class directly, but it does have helper methods that could |
---|
| 1200 | * be useful in your DragDrop implementations. |
---|
| 1201 | * @singleton |
---|
| 1202 | */ |
---|
| 1203 | Ext.dd.DragDropMgr = function() { |
---|
| 1204 | |
---|
| 1205 | var Event = Ext.EventManager; |
---|
| 1206 | |
---|
| 1207 | return { |
---|
| 1208 | |
---|
| 1209 | /** |
---|
| 1210 | * Two dimensional Array of registered DragDrop objects. The first |
---|
| 1211 | * dimension is the DragDrop item group, the second the DragDrop |
---|
| 1212 | * object. |
---|
| 1213 | * @property ids |
---|
| 1214 | * @type {string: string} |
---|
| 1215 | * @private |
---|
| 1216 | * @static |
---|
| 1217 | */ |
---|
| 1218 | ids: {}, |
---|
| 1219 | |
---|
| 1220 | /** |
---|
| 1221 | * Array of element ids defined as drag handles. Used to determine |
---|
| 1222 | * if the element that generated the mousedown event is actually the |
---|
| 1223 | * handle and not the html element itself. |
---|
| 1224 | * @property handleIds |
---|
| 1225 | * @type {string: string} |
---|
| 1226 | * @private |
---|
| 1227 | * @static |
---|
| 1228 | */ |
---|
| 1229 | handleIds: {}, |
---|
| 1230 | |
---|
| 1231 | /** |
---|
| 1232 | * the DragDrop object that is currently being dragged |
---|
| 1233 | * @property dragCurrent |
---|
| 1234 | * @type DragDrop |
---|
| 1235 | * @private |
---|
| 1236 | * @static |
---|
| 1237 | **/ |
---|
| 1238 | dragCurrent: null, |
---|
| 1239 | |
---|
| 1240 | /** |
---|
| 1241 | * the DragDrop object(s) that are being hovered over |
---|
| 1242 | * @property dragOvers |
---|
| 1243 | * @type Array |
---|
| 1244 | * @private |
---|
| 1245 | * @static |
---|
| 1246 | */ |
---|
| 1247 | dragOvers: {}, |
---|
| 1248 | |
---|
| 1249 | /** |
---|
| 1250 | * the X distance between the cursor and the object being dragged |
---|
| 1251 | * @property deltaX |
---|
| 1252 | * @type int |
---|
| 1253 | * @private |
---|
| 1254 | * @static |
---|
| 1255 | */ |
---|
| 1256 | deltaX: 0, |
---|
| 1257 | |
---|
| 1258 | /** |
---|
| 1259 | * the Y distance between the cursor and the object being dragged |
---|
| 1260 | * @property deltaY |
---|
| 1261 | * @type int |
---|
| 1262 | * @private |
---|
| 1263 | * @static |
---|
| 1264 | */ |
---|
| 1265 | deltaY: 0, |
---|
| 1266 | |
---|
| 1267 | /** |
---|
| 1268 | * Flag to determine if we should prevent the default behavior of the |
---|
| 1269 | * events we define. By default this is true, but this can be set to |
---|
| 1270 | * false if you need the default behavior (not recommended) |
---|
| 1271 | * @property preventDefault |
---|
| 1272 | * @type boolean |
---|
| 1273 | * @static |
---|
| 1274 | */ |
---|
| 1275 | preventDefault: true, |
---|
| 1276 | |
---|
| 1277 | /** |
---|
| 1278 | * Flag to determine if we should stop the propagation of the events |
---|
| 1279 | * we generate. This is true by default but you may want to set it to |
---|
| 1280 | * false if the html element contains other features that require the |
---|
| 1281 | * mouse click. |
---|
| 1282 | * @property stopPropagation |
---|
| 1283 | * @type boolean |
---|
| 1284 | * @static |
---|
| 1285 | */ |
---|
| 1286 | stopPropagation: true, |
---|
| 1287 | |
---|
| 1288 | /** |
---|
| 1289 | * Internal flag that is set to true when drag and drop has been |
---|
| 1290 | * intialized |
---|
| 1291 | * @property initialized |
---|
| 1292 | * @private |
---|
| 1293 | * @static |
---|
| 1294 | */ |
---|
| 1295 | initialized: false, |
---|
| 1296 | |
---|
| 1297 | /** |
---|
| 1298 | * All drag and drop can be disabled. |
---|
| 1299 | * @property locked |
---|
| 1300 | * @private |
---|
| 1301 | * @static |
---|
| 1302 | */ |
---|
| 1303 | locked: false, |
---|
| 1304 | |
---|
| 1305 | /** |
---|
| 1306 | * Called the first time an element is registered. |
---|
| 1307 | * @method init |
---|
| 1308 | * @private |
---|
| 1309 | * @static |
---|
| 1310 | */ |
---|
| 1311 | init: function() { |
---|
| 1312 | this.initialized = true; |
---|
| 1313 | }, |
---|
| 1314 | |
---|
| 1315 | /** |
---|
| 1316 | * In point mode, drag and drop interaction is defined by the |
---|
| 1317 | * location of the cursor during the drag/drop |
---|
| 1318 | * @property POINT |
---|
| 1319 | * @type int |
---|
| 1320 | * @static |
---|
| 1321 | */ |
---|
| 1322 | POINT: 0, |
---|
| 1323 | |
---|
| 1324 | /** |
---|
| 1325 | * In intersect mode, drag and drop interaction is defined by the |
---|
| 1326 | * overlap of two or more drag and drop objects. |
---|
| 1327 | * @property INTERSECT |
---|
| 1328 | * @type int |
---|
| 1329 | * @static |
---|
| 1330 | */ |
---|
| 1331 | INTERSECT: 1, |
---|
| 1332 | |
---|
| 1333 | /** |
---|
| 1334 | * The current drag and drop mode. Default: POINT |
---|
| 1335 | * @property mode |
---|
| 1336 | * @type int |
---|
| 1337 | * @static |
---|
| 1338 | */ |
---|
| 1339 | mode: 0, |
---|
| 1340 | |
---|
| 1341 | /** |
---|
| 1342 | * Runs method on all drag and drop objects |
---|
| 1343 | * @method _execOnAll |
---|
| 1344 | * @private |
---|
| 1345 | * @static |
---|
| 1346 | */ |
---|
| 1347 | _execOnAll: function(sMethod, args) { |
---|
| 1348 | for (var i in this.ids) { |
---|
| 1349 | for (var j in this.ids[i]) { |
---|
| 1350 | var oDD = this.ids[i][j]; |
---|
| 1351 | if (! this.isTypeOfDD(oDD)) { |
---|
| 1352 | continue; |
---|
| 1353 | } |
---|
| 1354 | oDD[sMethod].apply(oDD, args); |
---|
| 1355 | } |
---|
| 1356 | } |
---|
| 1357 | }, |
---|
| 1358 | |
---|
| 1359 | /** |
---|
| 1360 | * Drag and drop initialization. Sets up the global event handlers |
---|
| 1361 | * @method _onLoad |
---|
| 1362 | * @private |
---|
| 1363 | * @static |
---|
| 1364 | */ |
---|
| 1365 | _onLoad: function() { |
---|
| 1366 | |
---|
| 1367 | this.init(); |
---|
| 1368 | |
---|
| 1369 | |
---|
| 1370 | Event.on(document, "mouseup", this.handleMouseUp, this, true); |
---|
| 1371 | Event.on(document, "mousemove", this.handleMouseMove, this, true); |
---|
| 1372 | Event.on(window, "unload", this._onUnload, this, true); |
---|
| 1373 | Event.on(window, "resize", this._onResize, this, true); |
---|
| 1374 | // Event.on(window, "mouseout", this._test); |
---|
| 1375 | |
---|
| 1376 | }, |
---|
| 1377 | |
---|
| 1378 | /** |
---|
| 1379 | * Reset constraints on all drag and drop objs |
---|
| 1380 | * @method _onResize |
---|
| 1381 | * @private |
---|
| 1382 | * @static |
---|
| 1383 | */ |
---|
| 1384 | _onResize: function(e) { |
---|
| 1385 | this._execOnAll("resetConstraints", []); |
---|
| 1386 | }, |
---|
| 1387 | |
---|
| 1388 | /** |
---|
| 1389 | * Lock all drag and drop functionality |
---|
| 1390 | * @method lock |
---|
| 1391 | * @static |
---|
| 1392 | */ |
---|
| 1393 | lock: function() { this.locked = true; }, |
---|
| 1394 | |
---|
| 1395 | /** |
---|
| 1396 | * Unlock all drag and drop functionality |
---|
| 1397 | * @method unlock |
---|
| 1398 | * @static |
---|
| 1399 | */ |
---|
| 1400 | unlock: function() { this.locked = false; }, |
---|
| 1401 | |
---|
| 1402 | /** |
---|
| 1403 | * Is drag and drop locked? |
---|
| 1404 | * @method isLocked |
---|
| 1405 | * @return {boolean} True if drag and drop is locked, false otherwise. |
---|
| 1406 | * @static |
---|
| 1407 | */ |
---|
| 1408 | isLocked: function() { return this.locked; }, |
---|
| 1409 | |
---|
| 1410 | /** |
---|
| 1411 | * Location cache that is set for all drag drop objects when a drag is |
---|
| 1412 | * initiated, cleared when the drag is finished. |
---|
| 1413 | * @property locationCache |
---|
| 1414 | * @private |
---|
| 1415 | * @static |
---|
| 1416 | */ |
---|
| 1417 | locationCache: {}, |
---|
| 1418 | |
---|
| 1419 | /** |
---|
| 1420 | * Set useCache to false if you want to force object the lookup of each |
---|
| 1421 | * drag and drop linked element constantly during a drag. |
---|
| 1422 | * @property useCache |
---|
| 1423 | * @type boolean |
---|
| 1424 | * @static |
---|
| 1425 | */ |
---|
| 1426 | useCache: true, |
---|
| 1427 | |
---|
| 1428 | /** |
---|
| 1429 | * The number of pixels that the mouse needs to move after the |
---|
| 1430 | * mousedown before the drag is initiated. Default=3; |
---|
| 1431 | * @property clickPixelThresh |
---|
| 1432 | * @type int |
---|
| 1433 | * @static |
---|
| 1434 | */ |
---|
| 1435 | clickPixelThresh: 3, |
---|
| 1436 | |
---|
| 1437 | /** |
---|
| 1438 | * The number of milliseconds after the mousedown event to initiate the |
---|
| 1439 | * drag if we don't get a mouseup event. Default=1000 |
---|
| 1440 | * @property clickTimeThresh |
---|
| 1441 | * @type int |
---|
| 1442 | * @static |
---|
| 1443 | */ |
---|
| 1444 | clickTimeThresh: 350, |
---|
| 1445 | |
---|
| 1446 | /** |
---|
| 1447 | * Flag that indicates that either the drag pixel threshold or the |
---|
| 1448 | * mousdown time threshold has been met |
---|
| 1449 | * @property dragThreshMet |
---|
| 1450 | * @type boolean |
---|
| 1451 | * @private |
---|
| 1452 | * @static |
---|
| 1453 | */ |
---|
| 1454 | dragThreshMet: false, |
---|
| 1455 | |
---|
| 1456 | /** |
---|
| 1457 | * Timeout used for the click time threshold |
---|
| 1458 | * @property clickTimeout |
---|
| 1459 | * @type Object |
---|
| 1460 | * @private |
---|
| 1461 | * @static |
---|
| 1462 | */ |
---|
| 1463 | clickTimeout: null, |
---|
| 1464 | |
---|
| 1465 | /** |
---|
| 1466 | * The X position of the mousedown event stored for later use when a |
---|
| 1467 | * drag threshold is met. |
---|
| 1468 | * @property startX |
---|
| 1469 | * @type int |
---|
| 1470 | * @private |
---|
| 1471 | * @static |
---|
| 1472 | */ |
---|
| 1473 | startX: 0, |
---|
| 1474 | |
---|
| 1475 | /** |
---|
| 1476 | * The Y position of the mousedown event stored for later use when a |
---|
| 1477 | * drag threshold is met. |
---|
| 1478 | * @property startY |
---|
| 1479 | * @type int |
---|
| 1480 | * @private |
---|
| 1481 | * @static |
---|
| 1482 | */ |
---|
| 1483 | startY: 0, |
---|
| 1484 | |
---|
| 1485 | /** |
---|
| 1486 | * Each DragDrop instance must be registered with the DragDropMgr. |
---|
| 1487 | * This is executed in DragDrop.init() |
---|
| 1488 | * @method regDragDrop |
---|
| 1489 | * @param {DragDrop} oDD the DragDrop object to register |
---|
| 1490 | * @param {String} sGroup the name of the group this element belongs to |
---|
| 1491 | * @static |
---|
| 1492 | */ |
---|
| 1493 | regDragDrop: function(oDD, sGroup) { |
---|
| 1494 | if (!this.initialized) { this.init(); } |
---|
| 1495 | |
---|
| 1496 | if (!this.ids[sGroup]) { |
---|
| 1497 | this.ids[sGroup] = {}; |
---|
| 1498 | } |
---|
| 1499 | this.ids[sGroup][oDD.id] = oDD; |
---|
| 1500 | }, |
---|
| 1501 | |
---|
| 1502 | /** |
---|
| 1503 | * Removes the supplied dd instance from the supplied group. Executed |
---|
| 1504 | * by DragDrop.removeFromGroup, so don't call this function directly. |
---|
| 1505 | * @method removeDDFromGroup |
---|
| 1506 | * @private |
---|
| 1507 | * @static |
---|
| 1508 | */ |
---|
| 1509 | removeDDFromGroup: function(oDD, sGroup) { |
---|
| 1510 | if (!this.ids[sGroup]) { |
---|
| 1511 | this.ids[sGroup] = {}; |
---|
| 1512 | } |
---|
| 1513 | |
---|
| 1514 | var obj = this.ids[sGroup]; |
---|
| 1515 | if (obj && obj[oDD.id]) { |
---|
| 1516 | delete obj[oDD.id]; |
---|
| 1517 | } |
---|
| 1518 | }, |
---|
| 1519 | |
---|
| 1520 | /** |
---|
| 1521 | * Unregisters a drag and drop item. This is executed in |
---|
| 1522 | * DragDrop.unreg, use that method instead of calling this directly. |
---|
| 1523 | * @method _remove |
---|
| 1524 | * @private |
---|
| 1525 | * @static |
---|
| 1526 | */ |
---|
| 1527 | _remove: function(oDD) { |
---|
| 1528 | for (var g in oDD.groups) { |
---|
| 1529 | if (g && this.ids[g] && this.ids[g][oDD.id]) { |
---|
| 1530 | delete this.ids[g][oDD.id]; |
---|
| 1531 | } |
---|
| 1532 | } |
---|
| 1533 | delete this.handleIds[oDD.id]; |
---|
| 1534 | }, |
---|
| 1535 | |
---|
| 1536 | /** |
---|
| 1537 | * Each DragDrop handle element must be registered. This is done |
---|
| 1538 | * automatically when executing DragDrop.setHandleElId() |
---|
| 1539 | * @method regHandle |
---|
| 1540 | * @param {String} sDDId the DragDrop id this element is a handle for |
---|
| 1541 | * @param {String} sHandleId the id of the element that is the drag |
---|
| 1542 | * handle |
---|
| 1543 | * @static |
---|
| 1544 | */ |
---|
| 1545 | regHandle: function(sDDId, sHandleId) { |
---|
| 1546 | if (!this.handleIds[sDDId]) { |
---|
| 1547 | this.handleIds[sDDId] = {}; |
---|
| 1548 | } |
---|
| 1549 | this.handleIds[sDDId][sHandleId] = sHandleId; |
---|
| 1550 | }, |
---|
| 1551 | |
---|
| 1552 | /** |
---|
| 1553 | * Utility function to determine if a given element has been |
---|
| 1554 | * registered as a drag drop item. |
---|
| 1555 | * @method isDragDrop |
---|
| 1556 | * @param {String} id the element id to check |
---|
| 1557 | * @return {boolean} true if this element is a DragDrop item, |
---|
| 1558 | * false otherwise |
---|
| 1559 | * @static |
---|
| 1560 | */ |
---|
| 1561 | isDragDrop: function(id) { |
---|
| 1562 | return ( this.getDDById(id) ) ? true : false; |
---|
| 1563 | }, |
---|
| 1564 | |
---|
| 1565 | /** |
---|
| 1566 | * Returns the drag and drop instances that are in all groups the |
---|
| 1567 | * passed in instance belongs to. |
---|
| 1568 | * @method getRelated |
---|
| 1569 | * @param {DragDrop} p_oDD the obj to get related data for |
---|
| 1570 | * @param {boolean} bTargetsOnly if true, only return targetable objs |
---|
| 1571 | * @return {DragDrop[]} the related instances |
---|
| 1572 | * @static |
---|
| 1573 | */ |
---|
| 1574 | getRelated: function(p_oDD, bTargetsOnly) { |
---|
| 1575 | var oDDs = []; |
---|
| 1576 | for (var i in p_oDD.groups) { |
---|
| 1577 | for (var j in this.ids[i]) { |
---|
| 1578 | var dd = this.ids[i][j]; |
---|
| 1579 | if (! this.isTypeOfDD(dd)) { |
---|
| 1580 | continue; |
---|
| 1581 | } |
---|
| 1582 | if (!bTargetsOnly || dd.isTarget) { |
---|
| 1583 | oDDs[oDDs.length] = dd; |
---|
| 1584 | } |
---|
| 1585 | } |
---|
| 1586 | } |
---|
| 1587 | |
---|
| 1588 | return oDDs; |
---|
| 1589 | }, |
---|
| 1590 | |
---|
| 1591 | /** |
---|
| 1592 | * Returns true if the specified dd target is a legal target for |
---|
| 1593 | * the specifice drag obj |
---|
| 1594 | * @method isLegalTarget |
---|
| 1595 | * @param {DragDrop} the drag obj |
---|
| 1596 | * @param {DragDrop} the target |
---|
| 1597 | * @return {boolean} true if the target is a legal target for the |
---|
| 1598 | * dd obj |
---|
| 1599 | * @static |
---|
| 1600 | */ |
---|
| 1601 | isLegalTarget: function (oDD, oTargetDD) { |
---|
| 1602 | var targets = this.getRelated(oDD, true); |
---|
| 1603 | for (var i=0, len=targets.length;i<len;++i) { |
---|
| 1604 | if (targets[i].id == oTargetDD.id) { |
---|
| 1605 | return true; |
---|
| 1606 | } |
---|
| 1607 | } |
---|
| 1608 | |
---|
| 1609 | return false; |
---|
| 1610 | }, |
---|
| 1611 | |
---|
| 1612 | /** |
---|
| 1613 | * My goal is to be able to transparently determine if an object is |
---|
| 1614 | * typeof DragDrop, and the exact subclass of DragDrop. typeof |
---|
| 1615 | * returns "object", oDD.constructor.toString() always returns |
---|
| 1616 | * "DragDrop" and not the name of the subclass. So for now it just |
---|
| 1617 | * evaluates a well-known variable in DragDrop. |
---|
| 1618 | * @method isTypeOfDD |
---|
| 1619 | * @param {Object} the object to evaluate |
---|
| 1620 | * @return {boolean} true if typeof oDD = DragDrop |
---|
| 1621 | * @static |
---|
| 1622 | */ |
---|
| 1623 | isTypeOfDD: function (oDD) { |
---|
| 1624 | return (oDD && oDD.__ygDragDrop); |
---|
| 1625 | }, |
---|
| 1626 | |
---|
| 1627 | /** |
---|
| 1628 | * Utility function to determine if a given element has been |
---|
| 1629 | * registered as a drag drop handle for the given Drag Drop object. |
---|
| 1630 | * @method isHandle |
---|
| 1631 | * @param {String} id the element id to check |
---|
| 1632 | * @return {boolean} true if this element is a DragDrop handle, false |
---|
| 1633 | * otherwise |
---|
| 1634 | * @static |
---|
| 1635 | */ |
---|
| 1636 | isHandle: function(sDDId, sHandleId) { |
---|
| 1637 | return ( this.handleIds[sDDId] && |
---|
| 1638 | this.handleIds[sDDId][sHandleId] ); |
---|
| 1639 | }, |
---|
| 1640 | |
---|
| 1641 | /** |
---|
| 1642 | * Returns the DragDrop instance for a given id |
---|
| 1643 | * @method getDDById |
---|
| 1644 | * @param {String} id the id of the DragDrop object |
---|
| 1645 | * @return {DragDrop} the drag drop object, null if it is not found |
---|
| 1646 | * @static |
---|
| 1647 | */ |
---|
| 1648 | getDDById: function(id) { |
---|
| 1649 | for (var i in this.ids) { |
---|
| 1650 | if (this.ids[i][id]) { |
---|
| 1651 | return this.ids[i][id]; |
---|
| 1652 | } |
---|
| 1653 | } |
---|
| 1654 | return null; |
---|
| 1655 | }, |
---|
| 1656 | |
---|
| 1657 | /** |
---|
| 1658 | * Fired after a registered DragDrop object gets the mousedown event. |
---|
| 1659 | * Sets up the events required to track the object being dragged |
---|
| 1660 | * @method handleMouseDown |
---|
| 1661 | * @param {Event} e the event |
---|
| 1662 | * @param oDD the DragDrop object being dragged |
---|
| 1663 | * @private |
---|
| 1664 | * @static |
---|
| 1665 | */ |
---|
| 1666 | handleMouseDown: function(e, oDD) { |
---|
| 1667 | if(Ext.QuickTips){ |
---|
| 1668 | Ext.QuickTips.disable(); |
---|
| 1669 | } |
---|
| 1670 | if(this.dragCurrent){ |
---|
| 1671 | // the original browser mouseup wasn't handled (e.g. outside FF browser window) |
---|
| 1672 | // so clean up first to avoid breaking the next drag |
---|
| 1673 | this.handleMouseUp(e); |
---|
| 1674 | } |
---|
| 1675 | |
---|
| 1676 | this.currentTarget = e.getTarget(); |
---|
| 1677 | this.dragCurrent = oDD; |
---|
| 1678 | |
---|
| 1679 | var el = oDD.getEl(); |
---|
| 1680 | |
---|
| 1681 | // track start position |
---|
| 1682 | this.startX = e.getPageX(); |
---|
| 1683 | this.startY = e.getPageY(); |
---|
| 1684 | |
---|
| 1685 | this.deltaX = this.startX - el.offsetLeft; |
---|
| 1686 | this.deltaY = this.startY - el.offsetTop; |
---|
| 1687 | |
---|
| 1688 | this.dragThreshMet = false; |
---|
| 1689 | |
---|
| 1690 | this.clickTimeout = setTimeout( |
---|
| 1691 | function() { |
---|
| 1692 | var DDM = Ext.dd.DDM; |
---|
| 1693 | DDM.startDrag(DDM.startX, DDM.startY); |
---|
| 1694 | }, |
---|
| 1695 | this.clickTimeThresh ); |
---|
| 1696 | }, |
---|
| 1697 | |
---|
| 1698 | /** |
---|
| 1699 | * Fired when either the drag pixel threshol or the mousedown hold |
---|
| 1700 | * time threshold has been met. |
---|
| 1701 | * @method startDrag |
---|
| 1702 | * @param x {int} the X position of the original mousedown |
---|
| 1703 | * @param y {int} the Y position of the original mousedown |
---|
| 1704 | * @static |
---|
| 1705 | */ |
---|
| 1706 | startDrag: function(x, y) { |
---|
| 1707 | clearTimeout(this.clickTimeout); |
---|
| 1708 | if (this.dragCurrent) { |
---|
| 1709 | this.dragCurrent.b4StartDrag(x, y); |
---|
| 1710 | this.dragCurrent.startDrag(x, y); |
---|
| 1711 | } |
---|
| 1712 | this.dragThreshMet = true; |
---|
| 1713 | }, |
---|
| 1714 | |
---|
| 1715 | /** |
---|
| 1716 | * Internal function to handle the mouseup event. Will be invoked |
---|
| 1717 | * from the context of the document. |
---|
| 1718 | * @method handleMouseUp |
---|
| 1719 | * @param {Event} e the event |
---|
| 1720 | * @private |
---|
| 1721 | * @static |
---|
| 1722 | */ |
---|
| 1723 | handleMouseUp: function(e) { |
---|
| 1724 | |
---|
| 1725 | if(Ext.QuickTips){ |
---|
| 1726 | Ext.QuickTips.enable(); |
---|
| 1727 | } |
---|
| 1728 | if (! this.dragCurrent) { |
---|
| 1729 | return; |
---|
| 1730 | } |
---|
| 1731 | |
---|
| 1732 | clearTimeout(this.clickTimeout); |
---|
| 1733 | |
---|
| 1734 | if (this.dragThreshMet) { |
---|
| 1735 | this.fireEvents(e, true); |
---|
| 1736 | } else { |
---|
| 1737 | } |
---|
| 1738 | |
---|
| 1739 | this.stopDrag(e); |
---|
| 1740 | |
---|
| 1741 | this.stopEvent(e); |
---|
| 1742 | }, |
---|
| 1743 | |
---|
| 1744 | /** |
---|
| 1745 | * Utility to stop event propagation and event default, if these |
---|
| 1746 | * features are turned on. |
---|
| 1747 | * @method stopEvent |
---|
| 1748 | * @param {Event} e the event as returned by this.getEvent() |
---|
| 1749 | * @static |
---|
| 1750 | */ |
---|
| 1751 | stopEvent: function(e){ |
---|
| 1752 | if(this.stopPropagation) { |
---|
| 1753 | e.stopPropagation(); |
---|
| 1754 | } |
---|
| 1755 | |
---|
| 1756 | if (this.preventDefault) { |
---|
| 1757 | e.preventDefault(); |
---|
| 1758 | } |
---|
| 1759 | }, |
---|
| 1760 | |
---|
| 1761 | /** |
---|
| 1762 | * Internal function to clean up event handlers after the drag |
---|
| 1763 | * operation is complete |
---|
| 1764 | * @method stopDrag |
---|
| 1765 | * @param {Event} e the event |
---|
| 1766 | * @private |
---|
| 1767 | * @static |
---|
| 1768 | */ |
---|
| 1769 | stopDrag: function(e) { |
---|
| 1770 | // Fire the drag end event for the item that was dragged |
---|
| 1771 | if (this.dragCurrent) { |
---|
| 1772 | if (this.dragThreshMet) { |
---|
| 1773 | this.dragCurrent.b4EndDrag(e); |
---|
| 1774 | this.dragCurrent.endDrag(e); |
---|
| 1775 | } |
---|
| 1776 | |
---|
| 1777 | this.dragCurrent.onMouseUp(e); |
---|
| 1778 | } |
---|
| 1779 | |
---|
| 1780 | this.dragCurrent = null; |
---|
| 1781 | this.dragOvers = {}; |
---|
| 1782 | }, |
---|
| 1783 | |
---|
| 1784 | /** |
---|
| 1785 | * Internal function to handle the mousemove event. Will be invoked |
---|
| 1786 | * from the context of the html element. |
---|
| 1787 | * |
---|
| 1788 | * @TODO figure out what we can do about mouse events lost when the |
---|
| 1789 | * user drags objects beyond the window boundary. Currently we can |
---|
| 1790 | * detect this in internet explorer by verifying that the mouse is |
---|
| 1791 | * down during the mousemove event. Firefox doesn't give us the |
---|
| 1792 | * button state on the mousemove event. |
---|
| 1793 | * @method handleMouseMove |
---|
| 1794 | * @param {Event} e the event |
---|
| 1795 | * @private |
---|
| 1796 | * @static |
---|
| 1797 | */ |
---|
| 1798 | handleMouseMove: function(e) { |
---|
| 1799 | if (! this.dragCurrent) { |
---|
| 1800 | return true; |
---|
| 1801 | } |
---|
| 1802 | // var button = e.which || e.button; |
---|
| 1803 | |
---|
| 1804 | // check for IE mouseup outside of page boundary |
---|
| 1805 | if (Ext.isIE && (e.button !== 0 && e.button !== 1 && e.button !== 2)) { |
---|
| 1806 | this.stopEvent(e); |
---|
| 1807 | return this.handleMouseUp(e); |
---|
| 1808 | } |
---|
| 1809 | |
---|
| 1810 | if (!this.dragThreshMet) { |
---|
| 1811 | var diffX = Math.abs(this.startX - e.getPageX()); |
---|
| 1812 | var diffY = Math.abs(this.startY - e.getPageY()); |
---|
| 1813 | if (diffX > this.clickPixelThresh || |
---|
| 1814 | diffY > this.clickPixelThresh) { |
---|
| 1815 | this.startDrag(this.startX, this.startY); |
---|
| 1816 | } |
---|
| 1817 | } |
---|
| 1818 | |
---|
| 1819 | if (this.dragThreshMet) { |
---|
| 1820 | this.dragCurrent.b4Drag(e); |
---|
| 1821 | this.dragCurrent.onDrag(e); |
---|
| 1822 | if(!this.dragCurrent.moveOnly){ |
---|
| 1823 | this.fireEvents(e, false); |
---|
| 1824 | } |
---|
| 1825 | } |
---|
| 1826 | |
---|
| 1827 | this.stopEvent(e); |
---|
| 1828 | |
---|
| 1829 | return true; |
---|
| 1830 | }, |
---|
| 1831 | |
---|
| 1832 | /** |
---|
| 1833 | * Iterates over all of the DragDrop elements to find ones we are |
---|
| 1834 | * hovering over or dropping on |
---|
| 1835 | * @method fireEvents |
---|
| 1836 | * @param {Event} e the event |
---|
| 1837 | * @param {boolean} isDrop is this a drop op or a mouseover op? |
---|
| 1838 | * @private |
---|
| 1839 | * @static |
---|
| 1840 | */ |
---|
| 1841 | fireEvents: function(e, isDrop) { |
---|
| 1842 | var dc = this.dragCurrent; |
---|
| 1843 | |
---|
| 1844 | // If the user did the mouse up outside of the window, we could |
---|
| 1845 | // get here even though we have ended the drag. |
---|
| 1846 | if (!dc || dc.isLocked()) { |
---|
| 1847 | return; |
---|
| 1848 | } |
---|
| 1849 | |
---|
| 1850 | var pt = e.getPoint(); |
---|
| 1851 | |
---|
| 1852 | // cache the previous dragOver array |
---|
| 1853 | var oldOvers = []; |
---|
| 1854 | |
---|
| 1855 | var outEvts = []; |
---|
| 1856 | var overEvts = []; |
---|
| 1857 | var dropEvts = []; |
---|
| 1858 | var enterEvts = []; |
---|
| 1859 | |
---|
| 1860 | // Check to see if the object(s) we were hovering over is no longer |
---|
| 1861 | // being hovered over so we can fire the onDragOut event |
---|
| 1862 | for (var i in this.dragOvers) { |
---|
| 1863 | |
---|
| 1864 | var ddo = this.dragOvers[i]; |
---|
| 1865 | |
---|
| 1866 | if (! this.isTypeOfDD(ddo)) { |
---|
| 1867 | continue; |
---|
| 1868 | } |
---|
| 1869 | |
---|
| 1870 | if (! this.isOverTarget(pt, ddo, this.mode)) { |
---|
| 1871 | outEvts.push( ddo ); |
---|
| 1872 | } |
---|
| 1873 | |
---|
| 1874 | oldOvers[i] = true; |
---|
| 1875 | delete this.dragOvers[i]; |
---|
| 1876 | } |
---|
| 1877 | |
---|
| 1878 | for (var sGroup in dc.groups) { |
---|
| 1879 | |
---|
| 1880 | if ("string" != typeof sGroup) { |
---|
| 1881 | continue; |
---|
| 1882 | } |
---|
| 1883 | |
---|
| 1884 | for (i in this.ids[sGroup]) { |
---|
| 1885 | var oDD = this.ids[sGroup][i]; |
---|
| 1886 | if (! this.isTypeOfDD(oDD)) { |
---|
| 1887 | continue; |
---|
| 1888 | } |
---|
| 1889 | |
---|
| 1890 | if (oDD.isTarget && !oDD.isLocked() && ((oDD != dc) || (dc.ignoreSelf === false))) { |
---|
| 1891 | if (this.isOverTarget(pt, oDD, this.mode)) { |
---|
| 1892 | // look for drop interactions |
---|
| 1893 | if (isDrop) { |
---|
| 1894 | dropEvts.push( oDD ); |
---|
| 1895 | // look for drag enter and drag over interactions |
---|
| 1896 | } else { |
---|
| 1897 | |
---|
| 1898 | // initial drag over: dragEnter fires |
---|
| 1899 | if (!oldOvers[oDD.id]) { |
---|
| 1900 | enterEvts.push( oDD ); |
---|
| 1901 | // subsequent drag overs: dragOver fires |
---|
| 1902 | } else { |
---|
| 1903 | overEvts.push( oDD ); |
---|
| 1904 | } |
---|
| 1905 | |
---|
| 1906 | this.dragOvers[oDD.id] = oDD; |
---|
| 1907 | } |
---|
| 1908 | } |
---|
| 1909 | } |
---|
| 1910 | } |
---|
| 1911 | } |
---|
| 1912 | |
---|
| 1913 | if (this.mode) { |
---|
| 1914 | if (outEvts.length) { |
---|
| 1915 | dc.b4DragOut(e, outEvts); |
---|
| 1916 | dc.onDragOut(e, outEvts); |
---|
| 1917 | } |
---|
| 1918 | |
---|
| 1919 | if (enterEvts.length) { |
---|
| 1920 | dc.onDragEnter(e, enterEvts); |
---|
| 1921 | } |
---|
| 1922 | |
---|
| 1923 | if (overEvts.length) { |
---|
| 1924 | dc.b4DragOver(e, overEvts); |
---|
| 1925 | dc.onDragOver(e, overEvts); |
---|
| 1926 | } |
---|
| 1927 | |
---|
| 1928 | if (dropEvts.length) { |
---|
| 1929 | dc.b4DragDrop(e, dropEvts); |
---|
| 1930 | dc.onDragDrop(e, dropEvts); |
---|
| 1931 | } |
---|
| 1932 | |
---|
| 1933 | } else { |
---|
| 1934 | // fire dragout events |
---|
| 1935 | var len = 0; |
---|
| 1936 | for (i=0, len=outEvts.length; i<len; ++i) { |
---|
| 1937 | dc.b4DragOut(e, outEvts[i].id); |
---|
| 1938 | dc.onDragOut(e, outEvts[i].id); |
---|
| 1939 | } |
---|
| 1940 | |
---|
| 1941 | // fire enter events |
---|
| 1942 | for (i=0,len=enterEvts.length; i<len; ++i) { |
---|
| 1943 | // dc.b4DragEnter(e, oDD.id); |
---|
| 1944 | dc.onDragEnter(e, enterEvts[i].id); |
---|
| 1945 | } |
---|
| 1946 | |
---|
| 1947 | // fire over events |
---|
| 1948 | for (i=0,len=overEvts.length; i<len; ++i) { |
---|
| 1949 | dc.b4DragOver(e, overEvts[i].id); |
---|
| 1950 | dc.onDragOver(e, overEvts[i].id); |
---|
| 1951 | } |
---|
| 1952 | |
---|
| 1953 | // fire drop events |
---|
| 1954 | for (i=0, len=dropEvts.length; i<len; ++i) { |
---|
| 1955 | dc.b4DragDrop(e, dropEvts[i].id); |
---|
| 1956 | dc.onDragDrop(e, dropEvts[i].id); |
---|
| 1957 | } |
---|
| 1958 | |
---|
| 1959 | } |
---|
| 1960 | |
---|
| 1961 | // notify about a drop that did not find a target |
---|
| 1962 | if (isDrop && !dropEvts.length) { |
---|
| 1963 | dc.onInvalidDrop(e); |
---|
| 1964 | } |
---|
| 1965 | |
---|
| 1966 | }, |
---|
| 1967 | |
---|
| 1968 | /** |
---|
| 1969 | * Helper function for getting the best match from the list of drag |
---|
| 1970 | * and drop objects returned by the drag and drop events when we are |
---|
| 1971 | * in INTERSECT mode. It returns either the first object that the |
---|
| 1972 | * cursor is over, or the object that has the greatest overlap with |
---|
| 1973 | * the dragged element. |
---|
| 1974 | * @method getBestMatch |
---|
| 1975 | * @param {DragDrop[]} dds The array of drag and drop objects |
---|
| 1976 | * targeted |
---|
| 1977 | * @return {DragDrop} The best single match |
---|
| 1978 | * @static |
---|
| 1979 | */ |
---|
| 1980 | getBestMatch: function(dds) { |
---|
| 1981 | var winner = null; |
---|
| 1982 | // Return null if the input is not what we expect |
---|
| 1983 | //if (!dds || !dds.length || dds.length == 0) { |
---|
| 1984 | // winner = null; |
---|
| 1985 | // If there is only one item, it wins |
---|
| 1986 | //} else if (dds.length == 1) { |
---|
| 1987 | |
---|
| 1988 | var len = dds.length; |
---|
| 1989 | |
---|
| 1990 | if (len == 1) { |
---|
| 1991 | winner = dds[0]; |
---|
| 1992 | } else { |
---|
| 1993 | // Loop through the targeted items |
---|
| 1994 | for (var i=0; i<len; ++i) { |
---|
| 1995 | var dd = dds[i]; |
---|
| 1996 | // If the cursor is over the object, it wins. If the |
---|
| 1997 | // cursor is over multiple matches, the first one we come |
---|
| 1998 | // to wins. |
---|
| 1999 | if (dd.cursorIsOver) { |
---|
| 2000 | winner = dd; |
---|
| 2001 | break; |
---|
| 2002 | // Otherwise the object with the most overlap wins |
---|
| 2003 | } else { |
---|
| 2004 | if (!winner || |
---|
| 2005 | winner.overlap.getArea() < dd.overlap.getArea()) { |
---|
| 2006 | winner = dd; |
---|
| 2007 | } |
---|
| 2008 | } |
---|
| 2009 | } |
---|
| 2010 | } |
---|
| 2011 | |
---|
| 2012 | return winner; |
---|
| 2013 | }, |
---|
| 2014 | |
---|
| 2015 | /** |
---|
| 2016 | * Refreshes the cache of the top-left and bottom-right points of the |
---|
| 2017 | * drag and drop objects in the specified group(s). This is in the |
---|
| 2018 | * format that is stored in the drag and drop instance, so typical |
---|
| 2019 | * usage is: |
---|
| 2020 | * <code> |
---|
| 2021 | * Ext.dd.DragDropMgr.refreshCache(ddinstance.groups); |
---|
| 2022 | * </code> |
---|
| 2023 | * Alternatively: |
---|
| 2024 | * <code> |
---|
| 2025 | * Ext.dd.DragDropMgr.refreshCache({group1:true, group2:true}); |
---|
| 2026 | * </code> |
---|
| 2027 | * @TODO this really should be an indexed array. Alternatively this |
---|
| 2028 | * method could accept both. |
---|
| 2029 | * @method refreshCache |
---|
| 2030 | * @param {Object} groups an associative array of groups to refresh |
---|
| 2031 | * @static |
---|
| 2032 | */ |
---|
| 2033 | refreshCache: function(groups) { |
---|
| 2034 | for (var sGroup in groups) { |
---|
| 2035 | if ("string" != typeof sGroup) { |
---|
| 2036 | continue; |
---|
| 2037 | } |
---|
| 2038 | for (var i in this.ids[sGroup]) { |
---|
| 2039 | var oDD = this.ids[sGroup][i]; |
---|
| 2040 | |
---|
| 2041 | if (this.isTypeOfDD(oDD)) { |
---|
| 2042 | // if (this.isTypeOfDD(oDD) && oDD.isTarget) { |
---|
| 2043 | var loc = this.getLocation(oDD); |
---|
| 2044 | if (loc) { |
---|
| 2045 | this.locationCache[oDD.id] = loc; |
---|
| 2046 | } else { |
---|
| 2047 | delete this.locationCache[oDD.id]; |
---|
| 2048 | // this will unregister the drag and drop object if |
---|
| 2049 | // the element is not in a usable state |
---|
| 2050 | // oDD.unreg(); |
---|
| 2051 | } |
---|
| 2052 | } |
---|
| 2053 | } |
---|
| 2054 | } |
---|
| 2055 | }, |
---|
| 2056 | |
---|
| 2057 | /** |
---|
| 2058 | * This checks to make sure an element exists and is in the DOM. The |
---|
| 2059 | * main purpose is to handle cases where innerHTML is used to remove |
---|
| 2060 | * drag and drop objects from the DOM. IE provides an 'unspecified |
---|
| 2061 | * error' when trying to access the offsetParent of such an element |
---|
| 2062 | * @method verifyEl |
---|
| 2063 | * @param {HTMLElement} el the element to check |
---|
| 2064 | * @return {boolean} true if the element looks usable |
---|
| 2065 | * @static |
---|
| 2066 | */ |
---|
| 2067 | verifyEl: function(el) { |
---|
| 2068 | if (el) { |
---|
| 2069 | var parent; |
---|
| 2070 | if(Ext.isIE){ |
---|
| 2071 | try{ |
---|
| 2072 | parent = el.offsetParent; |
---|
| 2073 | }catch(e){} |
---|
| 2074 | }else{ |
---|
| 2075 | parent = el.offsetParent; |
---|
| 2076 | } |
---|
| 2077 | if (parent) { |
---|
| 2078 | return true; |
---|
| 2079 | } |
---|
| 2080 | } |
---|
| 2081 | |
---|
| 2082 | return false; |
---|
| 2083 | }, |
---|
| 2084 | |
---|
| 2085 | /** |
---|
| 2086 | * Returns a Region object containing the drag and drop element's position |
---|
| 2087 | * and size, including the padding configured for it |
---|
| 2088 | * @method getLocation |
---|
| 2089 | * @param {DragDrop} oDD the drag and drop object to get the |
---|
| 2090 | * location for |
---|
| 2091 | * @return {Ext.lib.Region} a Region object representing the total area |
---|
| 2092 | * the element occupies, including any padding |
---|
| 2093 | * the instance is configured for. |
---|
| 2094 | * @static |
---|
| 2095 | */ |
---|
| 2096 | getLocation: function(oDD) { |
---|
| 2097 | if (! this.isTypeOfDD(oDD)) { |
---|
| 2098 | return null; |
---|
| 2099 | } |
---|
| 2100 | |
---|
| 2101 | var el = oDD.getEl(), pos, x1, x2, y1, y2, t, r, b, l; |
---|
| 2102 | |
---|
| 2103 | try { |
---|
| 2104 | pos= Ext.lib.Dom.getXY(el); |
---|
| 2105 | } catch (e) { } |
---|
| 2106 | |
---|
| 2107 | if (!pos) { |
---|
| 2108 | return null; |
---|
| 2109 | } |
---|
| 2110 | |
---|
| 2111 | x1 = pos[0]; |
---|
| 2112 | x2 = x1 + el.offsetWidth; |
---|
| 2113 | y1 = pos[1]; |
---|
| 2114 | y2 = y1 + el.offsetHeight; |
---|
| 2115 | |
---|
| 2116 | t = y1 - oDD.padding[0]; |
---|
| 2117 | r = x2 + oDD.padding[1]; |
---|
| 2118 | b = y2 + oDD.padding[2]; |
---|
| 2119 | l = x1 - oDD.padding[3]; |
---|
| 2120 | |
---|
| 2121 | return new Ext.lib.Region( t, r, b, l ); |
---|
| 2122 | }, |
---|
| 2123 | |
---|
| 2124 | /** |
---|
| 2125 | * Checks the cursor location to see if it over the target |
---|
| 2126 | * @method isOverTarget |
---|
| 2127 | * @param {Ext.lib.Point} pt The point to evaluate |
---|
| 2128 | * @param {DragDrop} oTarget the DragDrop object we are inspecting |
---|
| 2129 | * @return {boolean} true if the mouse is over the target |
---|
| 2130 | * @private |
---|
| 2131 | * @static |
---|
| 2132 | */ |
---|
| 2133 | isOverTarget: function(pt, oTarget, intersect) { |
---|
| 2134 | // use cache if available |
---|
| 2135 | var loc = this.locationCache[oTarget.id]; |
---|
| 2136 | if (!loc || !this.useCache) { |
---|
| 2137 | loc = this.getLocation(oTarget); |
---|
| 2138 | this.locationCache[oTarget.id] = loc; |
---|
| 2139 | |
---|
| 2140 | } |
---|
| 2141 | |
---|
| 2142 | if (!loc) { |
---|
| 2143 | return false; |
---|
| 2144 | } |
---|
| 2145 | |
---|
| 2146 | oTarget.cursorIsOver = loc.contains( pt ); |
---|
| 2147 | |
---|
| 2148 | // DragDrop is using this as a sanity check for the initial mousedown |
---|
| 2149 | // in this case we are done. In POINT mode, if the drag obj has no |
---|
| 2150 | // contraints, we are also done. Otherwise we need to evaluate the |
---|
| 2151 | // location of the target as related to the actual location of the |
---|
| 2152 | // dragged element. |
---|
| 2153 | var dc = this.dragCurrent; |
---|
| 2154 | if (!dc || !dc.getTargetCoord || |
---|
| 2155 | (!intersect && !dc.constrainX && !dc.constrainY)) { |
---|
| 2156 | return oTarget.cursorIsOver; |
---|
| 2157 | } |
---|
| 2158 | |
---|
| 2159 | oTarget.overlap = null; |
---|
| 2160 | |
---|
| 2161 | // Get the current location of the drag element, this is the |
---|
| 2162 | // location of the mouse event less the delta that represents |
---|
| 2163 | // where the original mousedown happened on the element. We |
---|
| 2164 | // need to consider constraints and ticks as well. |
---|
| 2165 | var pos = dc.getTargetCoord(pt.x, pt.y); |
---|
| 2166 | |
---|
| 2167 | var el = dc.getDragEl(); |
---|
| 2168 | var curRegion = new Ext.lib.Region( pos.y, |
---|
| 2169 | pos.x + el.offsetWidth, |
---|
| 2170 | pos.y + el.offsetHeight, |
---|
| 2171 | pos.x ); |
---|
| 2172 | |
---|
| 2173 | var overlap = curRegion.intersect(loc); |
---|
| 2174 | |
---|
| 2175 | if (overlap) { |
---|
| 2176 | oTarget.overlap = overlap; |
---|
| 2177 | return (intersect) ? true : oTarget.cursorIsOver; |
---|
| 2178 | } else { |
---|
| 2179 | return false; |
---|
| 2180 | } |
---|
| 2181 | }, |
---|
| 2182 | |
---|
| 2183 | /** |
---|
| 2184 | * unload event handler |
---|
| 2185 | * @method _onUnload |
---|
| 2186 | * @private |
---|
| 2187 | * @static |
---|
| 2188 | */ |
---|
| 2189 | _onUnload: function(e, me) { |
---|
| 2190 | Ext.dd.DragDropMgr.unregAll(); |
---|
| 2191 | }, |
---|
| 2192 | |
---|
| 2193 | /** |
---|
| 2194 | * Cleans up the drag and drop events and objects. |
---|
| 2195 | * @method unregAll |
---|
| 2196 | * @private |
---|
| 2197 | * @static |
---|
| 2198 | */ |
---|
| 2199 | unregAll: function() { |
---|
| 2200 | |
---|
| 2201 | if (this.dragCurrent) { |
---|
| 2202 | this.stopDrag(); |
---|
| 2203 | this.dragCurrent = null; |
---|
| 2204 | } |
---|
| 2205 | |
---|
| 2206 | this._execOnAll("unreg", []); |
---|
| 2207 | |
---|
| 2208 | for (var i in this.elementCache) { |
---|
| 2209 | delete this.elementCache[i]; |
---|
| 2210 | } |
---|
| 2211 | |
---|
| 2212 | this.elementCache = {}; |
---|
| 2213 | this.ids = {}; |
---|
| 2214 | }, |
---|
| 2215 | |
---|
| 2216 | /** |
---|
| 2217 | * A cache of DOM elements |
---|
| 2218 | * @property elementCache |
---|
| 2219 | * @private |
---|
| 2220 | * @static |
---|
| 2221 | */ |
---|
| 2222 | elementCache: {}, |
---|
| 2223 | |
---|
| 2224 | /** |
---|
| 2225 | * Get the wrapper for the DOM element specified |
---|
| 2226 | * @method getElWrapper |
---|
| 2227 | * @param {String} id the id of the element to get |
---|
| 2228 | * @return {Ext.dd.DDM.ElementWrapper} the wrapped element |
---|
| 2229 | * @private |
---|
| 2230 | * @deprecated This wrapper isn't that useful |
---|
| 2231 | * @static |
---|
| 2232 | */ |
---|
| 2233 | getElWrapper: function(id) { |
---|
| 2234 | var oWrapper = this.elementCache[id]; |
---|
| 2235 | if (!oWrapper || !oWrapper.el) { |
---|
| 2236 | oWrapper = this.elementCache[id] = |
---|
| 2237 | new this.ElementWrapper(Ext.getDom(id)); |
---|
| 2238 | } |
---|
| 2239 | return oWrapper; |
---|
| 2240 | }, |
---|
| 2241 | |
---|
| 2242 | /** |
---|
| 2243 | * Returns the actual DOM element |
---|
| 2244 | * @method getElement |
---|
| 2245 | * @param {String} id the id of the elment to get |
---|
| 2246 | * @return {Object} The element |
---|
| 2247 | * @deprecated use Ext.lib.Ext.getDom instead |
---|
| 2248 | * @static |
---|
| 2249 | */ |
---|
| 2250 | getElement: function(id) { |
---|
| 2251 | return Ext.getDom(id); |
---|
| 2252 | }, |
---|
| 2253 | |
---|
| 2254 | /** |
---|
| 2255 | * Returns the style property for the DOM element (i.e., |
---|
| 2256 | * document.getElById(id).style) |
---|
| 2257 | * @method getCss |
---|
| 2258 | * @param {String} id the id of the elment to get |
---|
| 2259 | * @return {Object} The style property of the element |
---|
| 2260 | * @deprecated use Ext.lib.Dom instead |
---|
| 2261 | * @static |
---|
| 2262 | */ |
---|
| 2263 | getCss: function(id) { |
---|
| 2264 | var el = Ext.getDom(id); |
---|
| 2265 | return (el) ? el.style : null; |
---|
| 2266 | }, |
---|
| 2267 | |
---|
| 2268 | /** |
---|
| 2269 | * Inner class for cached elements |
---|
| 2270 | * @class DragDropMgr.ElementWrapper |
---|
| 2271 | * @for DragDropMgr |
---|
| 2272 | * @private |
---|
| 2273 | * @deprecated |
---|
| 2274 | */ |
---|
| 2275 | ElementWrapper: function(el) { |
---|
| 2276 | /** |
---|
| 2277 | * The element |
---|
| 2278 | * @property el |
---|
| 2279 | */ |
---|
| 2280 | this.el = el || null; |
---|
| 2281 | /** |
---|
| 2282 | * The element id |
---|
| 2283 | * @property id |
---|
| 2284 | */ |
---|
| 2285 | this.id = this.el && el.id; |
---|
| 2286 | /** |
---|
| 2287 | * A reference to the style property |
---|
| 2288 | * @property css |
---|
| 2289 | */ |
---|
| 2290 | this.css = this.el && el.style; |
---|
| 2291 | }, |
---|
| 2292 | |
---|
| 2293 | /** |
---|
| 2294 | * Returns the X position of an html element |
---|
| 2295 | * @method getPosX |
---|
| 2296 | * @param el the element for which to get the position |
---|
| 2297 | * @return {int} the X coordinate |
---|
| 2298 | * @for DragDropMgr |
---|
| 2299 | * @deprecated use Ext.lib.Dom.getX instead |
---|
| 2300 | * @static |
---|
| 2301 | */ |
---|
| 2302 | getPosX: function(el) { |
---|
| 2303 | return Ext.lib.Dom.getX(el); |
---|
| 2304 | }, |
---|
| 2305 | |
---|
| 2306 | /** |
---|
| 2307 | * Returns the Y position of an html element |
---|
| 2308 | * @method getPosY |
---|
| 2309 | * @param el the element for which to get the position |
---|
| 2310 | * @return {int} the Y coordinate |
---|
| 2311 | * @deprecated use Ext.lib.Dom.getY instead |
---|
| 2312 | * @static |
---|
| 2313 | */ |
---|
| 2314 | getPosY: function(el) { |
---|
| 2315 | return Ext.lib.Dom.getY(el); |
---|
| 2316 | }, |
---|
| 2317 | |
---|
| 2318 | /** |
---|
| 2319 | * Swap two nodes. In IE, we use the native method, for others we |
---|
| 2320 | * emulate the IE behavior |
---|
| 2321 | * @method swapNode |
---|
| 2322 | * @param n1 the first node to swap |
---|
| 2323 | * @param n2 the other node to swap |
---|
| 2324 | * @static |
---|
| 2325 | */ |
---|
| 2326 | swapNode: function(n1, n2) { |
---|
| 2327 | if (n1.swapNode) { |
---|
| 2328 | n1.swapNode(n2); |
---|
| 2329 | } else { |
---|
| 2330 | var p = n2.parentNode; |
---|
| 2331 | var s = n2.nextSibling; |
---|
| 2332 | |
---|
| 2333 | if (s == n1) { |
---|
| 2334 | p.insertBefore(n1, n2); |
---|
| 2335 | } else if (n2 == n1.nextSibling) { |
---|
| 2336 | p.insertBefore(n2, n1); |
---|
| 2337 | } else { |
---|
| 2338 | n1.parentNode.replaceChild(n2, n1); |
---|
| 2339 | p.insertBefore(n1, s); |
---|
| 2340 | } |
---|
| 2341 | } |
---|
| 2342 | }, |
---|
| 2343 | |
---|
| 2344 | /** |
---|
| 2345 | * Returns the current scroll position |
---|
| 2346 | * @method getScroll |
---|
| 2347 | * @private |
---|
| 2348 | * @static |
---|
| 2349 | */ |
---|
| 2350 | getScroll: function () { |
---|
| 2351 | var t, l, dde=document.documentElement, db=document.body; |
---|
| 2352 | if (dde && (dde.scrollTop || dde.scrollLeft)) { |
---|
| 2353 | t = dde.scrollTop; |
---|
| 2354 | l = dde.scrollLeft; |
---|
| 2355 | } else if (db) { |
---|
| 2356 | t = db.scrollTop; |
---|
| 2357 | l = db.scrollLeft; |
---|
| 2358 | } else { |
---|
| 2359 | |
---|
| 2360 | } |
---|
| 2361 | return { top: t, left: l }; |
---|
| 2362 | }, |
---|
| 2363 | |
---|
| 2364 | /** |
---|
| 2365 | * Returns the specified element style property |
---|
| 2366 | * @method getStyle |
---|
| 2367 | * @param {HTMLElement} el the element |
---|
| 2368 | * @param {string} styleProp the style property |
---|
| 2369 | * @return {string} The value of the style property |
---|
| 2370 | * @deprecated use Ext.lib.Dom.getStyle |
---|
| 2371 | * @static |
---|
| 2372 | */ |
---|
| 2373 | getStyle: function(el, styleProp) { |
---|
| 2374 | return Ext.fly(el).getStyle(styleProp); |
---|
| 2375 | }, |
---|
| 2376 | |
---|
| 2377 | /** |
---|
| 2378 | * Gets the scrollTop |
---|
| 2379 | * @method getScrollTop |
---|
| 2380 | * @return {int} the document's scrollTop |
---|
| 2381 | * @static |
---|
| 2382 | */ |
---|
| 2383 | getScrollTop: function () { return this.getScroll().top; }, |
---|
| 2384 | |
---|
| 2385 | /** |
---|
| 2386 | * Gets the scrollLeft |
---|
| 2387 | * @method getScrollLeft |
---|
| 2388 | * @return {int} the document's scrollTop |
---|
| 2389 | * @static |
---|
| 2390 | */ |
---|
| 2391 | getScrollLeft: function () { return this.getScroll().left; }, |
---|
| 2392 | |
---|
| 2393 | /** |
---|
| 2394 | * Sets the x/y position of an element to the location of the |
---|
| 2395 | * target element. |
---|
| 2396 | * @method moveToEl |
---|
| 2397 | * @param {HTMLElement} moveEl The element to move |
---|
| 2398 | * @param {HTMLElement} targetEl The position reference element |
---|
| 2399 | * @static |
---|
| 2400 | */ |
---|
| 2401 | moveToEl: function (moveEl, targetEl) { |
---|
| 2402 | var aCoord = Ext.lib.Dom.getXY(targetEl); |
---|
| 2403 | Ext.lib.Dom.setXY(moveEl, aCoord); |
---|
| 2404 | }, |
---|
| 2405 | |
---|
| 2406 | /** |
---|
| 2407 | * Numeric array sort function |
---|
| 2408 | * @method numericSort |
---|
| 2409 | * @static |
---|
| 2410 | */ |
---|
| 2411 | numericSort: function(a, b) { return (a - b); }, |
---|
| 2412 | |
---|
| 2413 | /** |
---|
| 2414 | * Internal counter |
---|
| 2415 | * @property _timeoutCount |
---|
| 2416 | * @private |
---|
| 2417 | * @static |
---|
| 2418 | */ |
---|
| 2419 | _timeoutCount: 0, |
---|
| 2420 | |
---|
| 2421 | /** |
---|
| 2422 | * Trying to make the load order less important. Without this we get |
---|
| 2423 | * an error if this file is loaded before the Event Utility. |
---|
| 2424 | * @method _addListeners |
---|
| 2425 | * @private |
---|
| 2426 | * @static |
---|
| 2427 | */ |
---|
| 2428 | _addListeners: function() { |
---|
| 2429 | var DDM = Ext.dd.DDM; |
---|
| 2430 | if ( Ext.lib.Event && document ) { |
---|
| 2431 | DDM._onLoad(); |
---|
| 2432 | } else { |
---|
| 2433 | if (DDM._timeoutCount > 2000) { |
---|
| 2434 | } else { |
---|
| 2435 | setTimeout(DDM._addListeners, 10); |
---|
| 2436 | if (document && document.body) { |
---|
| 2437 | DDM._timeoutCount += 1; |
---|
| 2438 | } |
---|
| 2439 | } |
---|
| 2440 | } |
---|
| 2441 | }, |
---|
| 2442 | |
---|
| 2443 | /** |
---|
| 2444 | * Recursively searches the immediate parent and all child nodes for |
---|
| 2445 | * the handle element in order to determine wheter or not it was |
---|
| 2446 | * clicked. |
---|
| 2447 | * @method handleWasClicked |
---|
| 2448 | * @param node the html element to inspect |
---|
| 2449 | * @static |
---|
| 2450 | */ |
---|
| 2451 | handleWasClicked: function(node, id) { |
---|
| 2452 | if (this.isHandle(id, node.id)) { |
---|
| 2453 | return true; |
---|
| 2454 | } else { |
---|
| 2455 | // check to see if this is a text node child of the one we want |
---|
| 2456 | var p = node.parentNode; |
---|
| 2457 | |
---|
| 2458 | while (p) { |
---|
| 2459 | if (this.isHandle(id, p.id)) { |
---|
| 2460 | return true; |
---|
| 2461 | } else { |
---|
| 2462 | p = p.parentNode; |
---|
| 2463 | } |
---|
| 2464 | } |
---|
| 2465 | } |
---|
| 2466 | |
---|
| 2467 | return false; |
---|
| 2468 | } |
---|
| 2469 | |
---|
| 2470 | }; |
---|
| 2471 | |
---|
| 2472 | }(); |
---|
| 2473 | |
---|
| 2474 | // shorter alias, save a few bytes |
---|
| 2475 | Ext.dd.DDM = Ext.dd.DragDropMgr; |
---|
| 2476 | Ext.dd.DDM._addListeners(); |
---|
| 2477 | |
---|
| 2478 | } |
---|
| 2479 | |
---|
| 2480 | /** |
---|
| 2481 | * @class Ext.dd.DD |
---|
| 2482 | * A DragDrop implementation where the linked element follows the |
---|
| 2483 | * mouse cursor during a drag. |
---|
| 2484 | * @extends Ext.dd.DragDrop |
---|
| 2485 | * @constructor |
---|
| 2486 | * @param {String} id the id of the linked element |
---|
| 2487 | * @param {String} sGroup the group of related DragDrop items |
---|
| 2488 | * @param {object} config an object containing configurable attributes |
---|
| 2489 | * Valid properties for DD: |
---|
| 2490 | * scroll |
---|
| 2491 | */ |
---|
| 2492 | Ext.dd.DD = function(id, sGroup, config) { |
---|
| 2493 | if (id) { |
---|
| 2494 | this.init(id, sGroup, config); |
---|
| 2495 | } |
---|
| 2496 | }; |
---|
| 2497 | |
---|
| 2498 | Ext.extend(Ext.dd.DD, Ext.dd.DragDrop, { |
---|
| 2499 | |
---|
| 2500 | /** |
---|
| 2501 | * When set to true, the utility automatically tries to scroll the browser |
---|
| 2502 | * window when a drag and drop element is dragged near the viewport boundary. |
---|
| 2503 | * Defaults to true. |
---|
| 2504 | * @property scroll |
---|
| 2505 | * @type boolean |
---|
| 2506 | */ |
---|
| 2507 | scroll: true, |
---|
| 2508 | |
---|
| 2509 | /** |
---|
| 2510 | * Sets the pointer offset to the distance between the linked element's top |
---|
| 2511 | * left corner and the location the element was clicked |
---|
| 2512 | * @method autoOffset |
---|
| 2513 | * @param {int} iPageX the X coordinate of the click |
---|
| 2514 | * @param {int} iPageY the Y coordinate of the click |
---|
| 2515 | */ |
---|
| 2516 | autoOffset: function(iPageX, iPageY) { |
---|
| 2517 | var x = iPageX - this.startPageX; |
---|
| 2518 | var y = iPageY - this.startPageY; |
---|
| 2519 | this.setDelta(x, y); |
---|
| 2520 | }, |
---|
| 2521 | |
---|
| 2522 | /** |
---|
| 2523 | * Sets the pointer offset. You can call this directly to force the |
---|
| 2524 | * offset to be in a particular location (e.g., pass in 0,0 to set it |
---|
| 2525 | * to the center of the object) |
---|
| 2526 | * @method setDelta |
---|
| 2527 | * @param {int} iDeltaX the distance from the left |
---|
| 2528 | * @param {int} iDeltaY the distance from the top |
---|
| 2529 | */ |
---|
| 2530 | setDelta: function(iDeltaX, iDeltaY) { |
---|
| 2531 | this.deltaX = iDeltaX; |
---|
| 2532 | this.deltaY = iDeltaY; |
---|
| 2533 | }, |
---|
| 2534 | |
---|
| 2535 | /** |
---|
| 2536 | * Sets the drag element to the location of the mousedown or click event, |
---|
| 2537 | * maintaining the cursor location relative to the location on the element |
---|
| 2538 | * that was clicked. Override this if you want to place the element in a |
---|
| 2539 | * location other than where the cursor is. |
---|
| 2540 | * @method setDragElPos |
---|
| 2541 | * @param {int} iPageX the X coordinate of the mousedown or drag event |
---|
| 2542 | * @param {int} iPageY the Y coordinate of the mousedown or drag event |
---|
| 2543 | */ |
---|
| 2544 | setDragElPos: function(iPageX, iPageY) { |
---|
| 2545 | // the first time we do this, we are going to check to make sure |
---|
| 2546 | // the element has css positioning |
---|
| 2547 | |
---|
| 2548 | var el = this.getDragEl(); |
---|
| 2549 | this.alignElWithMouse(el, iPageX, iPageY); |
---|
| 2550 | }, |
---|
| 2551 | |
---|
| 2552 | /** |
---|
| 2553 | * Sets the element to the location of the mousedown or click event, |
---|
| 2554 | * maintaining the cursor location relative to the location on the element |
---|
| 2555 | * that was clicked. Override this if you want to place the element in a |
---|
| 2556 | * location other than where the cursor is. |
---|
| 2557 | * @method alignElWithMouse |
---|
| 2558 | * @param {HTMLElement} el the element to move |
---|
| 2559 | * @param {int} iPageX the X coordinate of the mousedown or drag event |
---|
| 2560 | * @param {int} iPageY the Y coordinate of the mousedown or drag event |
---|
| 2561 | */ |
---|
| 2562 | alignElWithMouse: function(el, iPageX, iPageY) { |
---|
| 2563 | var oCoord = this.getTargetCoord(iPageX, iPageY); |
---|
| 2564 | var fly = el.dom ? el : Ext.fly(el, '_dd'); |
---|
| 2565 | if (!this.deltaSetXY) { |
---|
| 2566 | var aCoord = [oCoord.x, oCoord.y]; |
---|
| 2567 | fly.setXY(aCoord); |
---|
| 2568 | var newLeft = fly.getLeft(true); |
---|
| 2569 | var newTop = fly.getTop(true); |
---|
| 2570 | this.deltaSetXY = [ newLeft - oCoord.x, newTop - oCoord.y ]; |
---|
| 2571 | } else { |
---|
| 2572 | fly.setLeftTop(oCoord.x + this.deltaSetXY[0], oCoord.y + this.deltaSetXY[1]); |
---|
| 2573 | } |
---|
| 2574 | |
---|
| 2575 | this.cachePosition(oCoord.x, oCoord.y); |
---|
| 2576 | this.autoScroll(oCoord.x, oCoord.y, el.offsetHeight, el.offsetWidth); |
---|
| 2577 | return oCoord; |
---|
| 2578 | }, |
---|
| 2579 | |
---|
| 2580 | /** |
---|
| 2581 | * Saves the most recent position so that we can reset the constraints and |
---|
| 2582 | * tick marks on-demand. We need to know this so that we can calculate the |
---|
| 2583 | * number of pixels the element is offset from its original position. |
---|
| 2584 | * @method cachePosition |
---|
| 2585 | * @param iPageX the current x position (optional, this just makes it so we |
---|
| 2586 | * don't have to look it up again) |
---|
| 2587 | * @param iPageY the current y position (optional, this just makes it so we |
---|
| 2588 | * don't have to look it up again) |
---|
| 2589 | */ |
---|
| 2590 | cachePosition: function(iPageX, iPageY) { |
---|
| 2591 | if (iPageX) { |
---|
| 2592 | this.lastPageX = iPageX; |
---|
| 2593 | this.lastPageY = iPageY; |
---|
| 2594 | } else { |
---|
| 2595 | var aCoord = Ext.lib.Dom.getXY(this.getEl()); |
---|
| 2596 | this.lastPageX = aCoord[0]; |
---|
| 2597 | this.lastPageY = aCoord[1]; |
---|
| 2598 | } |
---|
| 2599 | }, |
---|
| 2600 | |
---|
| 2601 | /** |
---|
| 2602 | * Auto-scroll the window if the dragged object has been moved beyond the |
---|
| 2603 | * visible window boundary. |
---|
| 2604 | * @method autoScroll |
---|
| 2605 | * @param {int} x the drag element's x position |
---|
| 2606 | * @param {int} y the drag element's y position |
---|
| 2607 | * @param {int} h the height of the drag element |
---|
| 2608 | * @param {int} w the width of the drag element |
---|
| 2609 | * @private |
---|
| 2610 | */ |
---|
| 2611 | autoScroll: function(x, y, h, w) { |
---|
| 2612 | |
---|
| 2613 | if (this.scroll) { |
---|
| 2614 | // The client height |
---|
| 2615 | var clientH = Ext.lib.Dom.getViewHeight(); |
---|
| 2616 | |
---|
| 2617 | // The client width |
---|
| 2618 | var clientW = Ext.lib.Dom.getViewWidth(); |
---|
| 2619 | |
---|
| 2620 | // The amt scrolled down |
---|
| 2621 | var st = this.DDM.getScrollTop(); |
---|
| 2622 | |
---|
| 2623 | // The amt scrolled right |
---|
| 2624 | var sl = this.DDM.getScrollLeft(); |
---|
| 2625 | |
---|
| 2626 | // Location of the bottom of the element |
---|
| 2627 | var bot = h + y; |
---|
| 2628 | |
---|
| 2629 | // Location of the right of the element |
---|
| 2630 | var right = w + x; |
---|
| 2631 | |
---|
| 2632 | // The distance from the cursor to the bottom of the visible area, |
---|
| 2633 | // adjusted so that we don't scroll if the cursor is beyond the |
---|
| 2634 | // element drag constraints |
---|
| 2635 | var toBot = (clientH + st - y - this.deltaY); |
---|
| 2636 | |
---|
| 2637 | // The distance from the cursor to the right of the visible area |
---|
| 2638 | var toRight = (clientW + sl - x - this.deltaX); |
---|
| 2639 | |
---|
| 2640 | |
---|
| 2641 | // How close to the edge the cursor must be before we scroll |
---|
| 2642 | // var thresh = (document.all) ? 100 : 40; |
---|
| 2643 | var thresh = 40; |
---|
| 2644 | |
---|
| 2645 | // How many pixels to scroll per autoscroll op. This helps to reduce |
---|
| 2646 | // clunky scrolling. IE is more sensitive about this ... it needs this |
---|
| 2647 | // value to be higher. |
---|
| 2648 | var scrAmt = (document.all) ? 80 : 30; |
---|
| 2649 | |
---|
| 2650 | // Scroll down if we are near the bottom of the visible page and the |
---|
| 2651 | // obj extends below the crease |
---|
| 2652 | if ( bot > clientH && toBot < thresh ) { |
---|
| 2653 | window.scrollTo(sl, st + scrAmt); |
---|
| 2654 | } |
---|
| 2655 | |
---|
| 2656 | // Scroll up if the window is scrolled down and the top of the object |
---|
| 2657 | // goes above the top border |
---|
| 2658 | if ( y < st && st > 0 && y - st < thresh ) { |
---|
| 2659 | window.scrollTo(sl, st - scrAmt); |
---|
| 2660 | } |
---|
| 2661 | |
---|
| 2662 | // Scroll right if the obj is beyond the right border and the cursor is |
---|
| 2663 | // near the border. |
---|
| 2664 | if ( right > clientW && toRight < thresh ) { |
---|
| 2665 | window.scrollTo(sl + scrAmt, st); |
---|
| 2666 | } |
---|
| 2667 | |
---|
| 2668 | // Scroll left if the window has been scrolled to the right and the obj |
---|
| 2669 | // extends past the left border |
---|
| 2670 | if ( x < sl && sl > 0 && x - sl < thresh ) { |
---|
| 2671 | window.scrollTo(sl - scrAmt, st); |
---|
| 2672 | } |
---|
| 2673 | } |
---|
| 2674 | }, |
---|
| 2675 | |
---|
| 2676 | /** |
---|
| 2677 | * Finds the location the element should be placed if we want to move |
---|
| 2678 | * it to where the mouse location less the click offset would place us. |
---|
| 2679 | * @method getTargetCoord |
---|
| 2680 | * @param {int} iPageX the X coordinate of the click |
---|
| 2681 | * @param {int} iPageY the Y coordinate of the click |
---|
| 2682 | * @return an object that contains the coordinates (Object.x and Object.y) |
---|
| 2683 | * @private |
---|
| 2684 | */ |
---|
| 2685 | getTargetCoord: function(iPageX, iPageY) { |
---|
| 2686 | |
---|
| 2687 | |
---|
| 2688 | var x = iPageX - this.deltaX; |
---|
| 2689 | var y = iPageY - this.deltaY; |
---|
| 2690 | |
---|
| 2691 | if (this.constrainX) { |
---|
| 2692 | if (x < this.minX) { x = this.minX; } |
---|
| 2693 | if (x > this.maxX) { x = this.maxX; } |
---|
| 2694 | } |
---|
| 2695 | |
---|
| 2696 | if (this.constrainY) { |
---|
| 2697 | if (y < this.minY) { y = this.minY; } |
---|
| 2698 | if (y > this.maxY) { y = this.maxY; } |
---|
| 2699 | } |
---|
| 2700 | |
---|
| 2701 | x = this.getTick(x, this.xTicks); |
---|
| 2702 | y = this.getTick(y, this.yTicks); |
---|
| 2703 | |
---|
| 2704 | |
---|
| 2705 | return {x:x, y:y}; |
---|
| 2706 | }, |
---|
| 2707 | |
---|
| 2708 | /** |
---|
| 2709 | * Sets up config options specific to this class. Overrides |
---|
| 2710 | * Ext.dd.DragDrop, but all versions of this method through the |
---|
| 2711 | * inheritance chain are called |
---|
| 2712 | */ |
---|
| 2713 | applyConfig: function() { |
---|
| 2714 | Ext.dd.DD.superclass.applyConfig.call(this); |
---|
| 2715 | this.scroll = (this.config.scroll !== false); |
---|
| 2716 | }, |
---|
| 2717 | |
---|
| 2718 | /** |
---|
| 2719 | * Event that fires prior to the onMouseDown event. Overrides |
---|
| 2720 | * Ext.dd.DragDrop. |
---|
| 2721 | */ |
---|
| 2722 | b4MouseDown: function(e) { |
---|
| 2723 | // this.resetConstraints(); |
---|
| 2724 | this.autoOffset(e.getPageX(), |
---|
| 2725 | e.getPageY()); |
---|
| 2726 | }, |
---|
| 2727 | |
---|
| 2728 | /** |
---|
| 2729 | * Event that fires prior to the onDrag event. Overrides |
---|
| 2730 | * Ext.dd.DragDrop. |
---|
| 2731 | */ |
---|
| 2732 | b4Drag: function(e) { |
---|
| 2733 | this.setDragElPos(e.getPageX(), |
---|
| 2734 | e.getPageY()); |
---|
| 2735 | }, |
---|
| 2736 | |
---|
| 2737 | toString: function() { |
---|
| 2738 | return ("DD " + this.id); |
---|
| 2739 | } |
---|
| 2740 | |
---|
| 2741 | ////////////////////////////////////////////////////////////////////////// |
---|
| 2742 | // Debugging ygDragDrop events that can be overridden |
---|
| 2743 | ////////////////////////////////////////////////////////////////////////// |
---|
| 2744 | /* |
---|
| 2745 | startDrag: function(x, y) { |
---|
| 2746 | }, |
---|
| 2747 | |
---|
| 2748 | onDrag: function(e) { |
---|
| 2749 | }, |
---|
| 2750 | |
---|
| 2751 | onDragEnter: function(e, id) { |
---|
| 2752 | }, |
---|
| 2753 | |
---|
| 2754 | onDragOver: function(e, id) { |
---|
| 2755 | }, |
---|
| 2756 | |
---|
| 2757 | onDragOut: function(e, id) { |
---|
| 2758 | }, |
---|
| 2759 | |
---|
| 2760 | onDragDrop: function(e, id) { |
---|
| 2761 | }, |
---|
| 2762 | |
---|
| 2763 | endDrag: function(e) { |
---|
| 2764 | } |
---|
| 2765 | |
---|
| 2766 | */ |
---|
| 2767 | |
---|
| 2768 | }); |
---|
| 2769 | /** |
---|
| 2770 | * @class Ext.dd.DDProxy |
---|
| 2771 | * A DragDrop implementation that inserts an empty, bordered div into |
---|
| 2772 | * the document that follows the cursor during drag operations. At the time of |
---|
| 2773 | * the click, the frame div is resized to the dimensions of the linked html |
---|
| 2774 | * element, and moved to the exact location of the linked element. |
---|
| 2775 | * |
---|
| 2776 | * References to the "frame" element refer to the single proxy element that |
---|
| 2777 | * was created to be dragged in place of all DDProxy elements on the |
---|
| 2778 | * page. |
---|
| 2779 | * |
---|
| 2780 | * @extends Ext.dd.DD |
---|
| 2781 | * @constructor |
---|
| 2782 | * @param {String} id the id of the linked html element |
---|
| 2783 | * @param {String} sGroup the group of related DragDrop objects |
---|
| 2784 | * @param {object} config an object containing configurable attributes |
---|
| 2785 | * Valid properties for DDProxy in addition to those in DragDrop: |
---|
| 2786 | * resizeFrame, centerFrame, dragElId |
---|
| 2787 | */ |
---|
| 2788 | Ext.dd.DDProxy = function(id, sGroup, config) { |
---|
| 2789 | if (id) { |
---|
| 2790 | this.init(id, sGroup, config); |
---|
| 2791 | this.initFrame(); |
---|
| 2792 | } |
---|
| 2793 | }; |
---|
| 2794 | |
---|
| 2795 | /** |
---|
| 2796 | * The default drag frame div id |
---|
| 2797 | * @property Ext.dd.DDProxy.dragElId |
---|
| 2798 | * @type String |
---|
| 2799 | * @static |
---|
| 2800 | */ |
---|
| 2801 | Ext.dd.DDProxy.dragElId = "ygddfdiv"; |
---|
| 2802 | |
---|
| 2803 | Ext.extend(Ext.dd.DDProxy, Ext.dd.DD, { |
---|
| 2804 | |
---|
| 2805 | /** |
---|
| 2806 | * By default we resize the drag frame to be the same size as the element |
---|
| 2807 | * we want to drag (this is to get the frame effect). We can turn it off |
---|
| 2808 | * if we want a different behavior. |
---|
| 2809 | * @property resizeFrame |
---|
| 2810 | * @type boolean |
---|
| 2811 | */ |
---|
| 2812 | resizeFrame: true, |
---|
| 2813 | |
---|
| 2814 | /** |
---|
| 2815 | * By default the frame is positioned exactly where the drag element is, so |
---|
| 2816 | * we use the cursor offset provided by Ext.dd.DD. Another option that works only if |
---|
| 2817 | * you do not have constraints on the obj is to have the drag frame centered |
---|
| 2818 | * around the cursor. Set centerFrame to true for this effect. |
---|
| 2819 | * @property centerFrame |
---|
| 2820 | * @type boolean |
---|
| 2821 | */ |
---|
| 2822 | centerFrame: false, |
---|
| 2823 | |
---|
| 2824 | /** |
---|
| 2825 | * Creates the proxy element if it does not yet exist |
---|
| 2826 | * @method createFrame |
---|
| 2827 | */ |
---|
| 2828 | createFrame: function() { |
---|
| 2829 | var self = this; |
---|
| 2830 | var body = document.body; |
---|
| 2831 | |
---|
| 2832 | if (!body || !body.firstChild) { |
---|
| 2833 | setTimeout( function() { self.createFrame(); }, 50 ); |
---|
| 2834 | return; |
---|
| 2835 | } |
---|
| 2836 | |
---|
| 2837 | var div = this.getDragEl(); |
---|
| 2838 | |
---|
| 2839 | if (!div) { |
---|
| 2840 | div = document.createElement("div"); |
---|
| 2841 | div.id = this.dragElId; |
---|
| 2842 | var s = div.style; |
---|
| 2843 | |
---|
| 2844 | s.position = "absolute"; |
---|
| 2845 | s.visibility = "hidden"; |
---|
| 2846 | s.cursor = "move"; |
---|
| 2847 | s.border = "2px solid #aaa"; |
---|
| 2848 | s.zIndex = 999; |
---|
| 2849 | |
---|
| 2850 | // appendChild can blow up IE if invoked prior to the window load event |
---|
| 2851 | // while rendering a table. It is possible there are other scenarios |
---|
| 2852 | // that would cause this to happen as well. |
---|
| 2853 | body.insertBefore(div, body.firstChild); |
---|
| 2854 | } |
---|
| 2855 | }, |
---|
| 2856 | |
---|
| 2857 | /** |
---|
| 2858 | * Initialization for the drag frame element. Must be called in the |
---|
| 2859 | * constructor of all subclasses |
---|
| 2860 | * @method initFrame |
---|
| 2861 | */ |
---|
| 2862 | initFrame: function() { |
---|
| 2863 | this.createFrame(); |
---|
| 2864 | }, |
---|
| 2865 | |
---|
| 2866 | applyConfig: function() { |
---|
| 2867 | Ext.dd.DDProxy.superclass.applyConfig.call(this); |
---|
| 2868 | |
---|
| 2869 | this.resizeFrame = (this.config.resizeFrame !== false); |
---|
| 2870 | this.centerFrame = (this.config.centerFrame); |
---|
| 2871 | this.setDragElId(this.config.dragElId || Ext.dd.DDProxy.dragElId); |
---|
| 2872 | }, |
---|
| 2873 | |
---|
| 2874 | /** |
---|
| 2875 | * Resizes the drag frame to the dimensions of the clicked object, positions |
---|
| 2876 | * it over the object, and finally displays it |
---|
| 2877 | * @method showFrame |
---|
| 2878 | * @param {int} iPageX X click position |
---|
| 2879 | * @param {int} iPageY Y click position |
---|
| 2880 | * @private |
---|
| 2881 | */ |
---|
| 2882 | showFrame: function(iPageX, iPageY) { |
---|
| 2883 | var el = this.getEl(); |
---|
| 2884 | var dragEl = this.getDragEl(); |
---|
| 2885 | var s = dragEl.style; |
---|
| 2886 | |
---|
| 2887 | this._resizeProxy(); |
---|
| 2888 | |
---|
| 2889 | if (this.centerFrame) { |
---|
| 2890 | this.setDelta( Math.round(parseInt(s.width, 10)/2), |
---|
| 2891 | Math.round(parseInt(s.height, 10)/2) ); |
---|
| 2892 | } |
---|
| 2893 | |
---|
| 2894 | this.setDragElPos(iPageX, iPageY); |
---|
| 2895 | |
---|
| 2896 | Ext.fly(dragEl).show(); |
---|
| 2897 | }, |
---|
| 2898 | |
---|
| 2899 | /** |
---|
| 2900 | * The proxy is automatically resized to the dimensions of the linked |
---|
| 2901 | * element when a drag is initiated, unless resizeFrame is set to false |
---|
| 2902 | * @method _resizeProxy |
---|
| 2903 | * @private |
---|
| 2904 | */ |
---|
| 2905 | _resizeProxy: function() { |
---|
| 2906 | if (this.resizeFrame) { |
---|
| 2907 | var el = this.getEl(); |
---|
| 2908 | Ext.fly(this.getDragEl()).setSize(el.offsetWidth, el.offsetHeight); |
---|
| 2909 | } |
---|
| 2910 | }, |
---|
| 2911 | |
---|
| 2912 | // overrides Ext.dd.DragDrop |
---|
| 2913 | b4MouseDown: function(e) { |
---|
| 2914 | var x = e.getPageX(); |
---|
| 2915 | var y = e.getPageY(); |
---|
| 2916 | this.autoOffset(x, y); |
---|
| 2917 | this.setDragElPos(x, y); |
---|
| 2918 | }, |
---|
| 2919 | |
---|
| 2920 | // overrides Ext.dd.DragDrop |
---|
| 2921 | b4StartDrag: function(x, y) { |
---|
| 2922 | // show the drag frame |
---|
| 2923 | this.showFrame(x, y); |
---|
| 2924 | }, |
---|
| 2925 | |
---|
| 2926 | // overrides Ext.dd.DragDrop |
---|
| 2927 | b4EndDrag: function(e) { |
---|
| 2928 | Ext.fly(this.getDragEl()).hide(); |
---|
| 2929 | }, |
---|
| 2930 | |
---|
| 2931 | // overrides Ext.dd.DragDrop |
---|
| 2932 | // By default we try to move the element to the last location of the frame. |
---|
| 2933 | // This is so that the default behavior mirrors that of Ext.dd.DD. |
---|
| 2934 | endDrag: function(e) { |
---|
| 2935 | |
---|
| 2936 | var lel = this.getEl(); |
---|
| 2937 | var del = this.getDragEl(); |
---|
| 2938 | |
---|
| 2939 | // Show the drag frame briefly so we can get its position |
---|
| 2940 | del.style.visibility = ""; |
---|
| 2941 | |
---|
| 2942 | this.beforeMove(); |
---|
| 2943 | // Hide the linked element before the move to get around a Safari |
---|
| 2944 | // rendering bug. |
---|
| 2945 | lel.style.visibility = "hidden"; |
---|
| 2946 | Ext.dd.DDM.moveToEl(lel, del); |
---|
| 2947 | del.style.visibility = "hidden"; |
---|
| 2948 | lel.style.visibility = ""; |
---|
| 2949 | |
---|
| 2950 | this.afterDrag(); |
---|
| 2951 | }, |
---|
| 2952 | |
---|
| 2953 | beforeMove : function(){ |
---|
| 2954 | |
---|
| 2955 | }, |
---|
| 2956 | |
---|
| 2957 | afterDrag : function(){ |
---|
| 2958 | |
---|
| 2959 | }, |
---|
| 2960 | |
---|
| 2961 | toString: function() { |
---|
| 2962 | return ("DDProxy " + this.id); |
---|
| 2963 | } |
---|
| 2964 | |
---|
| 2965 | }); |
---|
| 2966 | /** |
---|
| 2967 | * @class Ext.dd.DDTarget |
---|
| 2968 | * A DragDrop implementation that does not move, but can be a drop |
---|
| 2969 | * target. You would get the same result by simply omitting implementation |
---|
| 2970 | * for the event callbacks, but this way we reduce the processing cost of the |
---|
| 2971 | * event listener and the callbacks. |
---|
| 2972 | * @extends Ext.dd.DragDrop |
---|
| 2973 | * @constructor |
---|
| 2974 | * @param {String} id the id of the element that is a drop target |
---|
| 2975 | * @param {String} sGroup the group of related DragDrop objects |
---|
| 2976 | * @param {object} config an object containing configurable attributes |
---|
| 2977 | * Valid properties for DDTarget in addition to those in |
---|
| 2978 | * DragDrop: |
---|
| 2979 | * none |
---|
| 2980 | */ |
---|
| 2981 | Ext.dd.DDTarget = function(id, sGroup, config) { |
---|
| 2982 | if (id) { |
---|
| 2983 | this.initTarget(id, sGroup, config); |
---|
| 2984 | } |
---|
| 2985 | }; |
---|
| 2986 | |
---|
| 2987 | // Ext.dd.DDTarget.prototype = new Ext.dd.DragDrop(); |
---|
| 2988 | Ext.extend(Ext.dd.DDTarget, Ext.dd.DragDrop, { |
---|
| 2989 | toString: function() { |
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| 2990 | return ("DDTarget " + this.id); |
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| 2991 | } |
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| 2992 | }); |
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