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(); |
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527 | var ce = Ext.get(constrainTo); |
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528 | var s = ce.getScroll(); |
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529 | var c, cd = ce.dom; |
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530 | if(cd == document.body){ |
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531 | c = { x: s.left, y: s.top, width: Ext.lib.Dom.getViewWidth(), height: Ext.lib.Dom.getViewHeight()}; |
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532 | }else{ |
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533 | var xy = ce.getXY(); |
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534 | c = {x : xy[0]+s.left, y: xy[1]+s.top, width: cd.clientWidth, height: cd.clientHeight}; |
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535 | } |
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536 | |
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537 | |
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538 | var topSpace = b.y - c.y; |
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539 | var leftSpace = b.x - c.x; |
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540 | |
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541 | this.resetConstraints(); |
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542 | this.setXConstraint(leftSpace - (pad.left||0), // left |
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543 | c.width - leftSpace - b.width - (pad.right||0), //right |
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544 | this.xTickSize |
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545 | ); |
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546 | this.setYConstraint(topSpace - (pad.top||0), //top |
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547 | c.height - topSpace - b.height - (pad.bottom||0), //bottom |
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548 | this.yTickSize |
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549 | ); |
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550 | }, |
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551 | |
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552 | /** |
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553 | * Returns a reference to the linked element |
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554 | * @method getEl |
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555 | * @return {HTMLElement} the html element |
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556 | */ |
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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() { |
---|
2990 | return ("DDTarget " + this.id); |
---|
2991 | } |
---|
2992 | }); |
---|