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1 /*
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2 Copyright (c) 2009, Yahoo! Inc. All rights reserved.
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3 Code licensed under the BSD License:
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4 http://developer.yahoo.net/yui/license.txt
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5 version: 2.8.0r4
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6 */
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7
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8 /**
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9 * The CustomEvent class lets you define events for your application
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10 * that can be subscribed to by one or more independent component.
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11 *
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12 * @param {String} type The type of event, which is passed to the callback
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13 * when the event fires
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14 * @param {Object} context The context the event will fire from. "this" will
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15 * refer to this object in the callback. Default value:
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16 * the window object. The listener can override this.
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17 * @param {boolean} silent pass true to prevent the event from writing to
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18 * the debugsystem
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19 * @param {int} signature the signature that the custom event subscriber
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20 * will receive. YAHOO.util.CustomEvent.LIST or
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21 * YAHOO.util.CustomEvent.FLAT. The default is
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22 * YAHOO.util.CustomEvent.LIST.
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23 * @param fireOnce {boolean} If configured to fire once, the custom event
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24 * will only notify subscribers a single time regardless of how many times
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25 * the event is fired. In addition, new subscribers will be notified
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26 * immediately if the event has already been fired.
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27 * @namespace YAHOO.util
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28 * @class CustomEvent
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29 * @constructor
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30 */
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31 YAHOO.util.CustomEvent = function(type, context, silent, signature, fireOnce) {
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32
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33 /**
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34 * The type of event, returned to subscribers when the event fires
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35 * @property type
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36 * @type string
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37 */
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38 this.type = type;
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39
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40 /**
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41 * The context the event will fire from by default. Defaults to the window obj.
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42 * @property scope
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43 * @type object
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44 */
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45 this.scope = context || window;
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46
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47 /**
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48 * By default all custom events are logged in the debug build. Set silent to true
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49 * to disable debug output for this event.
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50 * @property silent
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51 * @type boolean
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52 */
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53 this.silent = silent;
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54
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55 /**
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56 * If configured to fire once, the custom event will only notify subscribers
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57 * a single time regardless of how many times the event is fired. In addition,
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58 * new subscribers will be notified immediately if the event has already been
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59 * fired.
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60 * @property fireOnce
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61 * @type boolean
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62 * @default false
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63 */
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64 this.fireOnce = fireOnce;
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65
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66 /**
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67 * Indicates whether or not this event has ever been fired.
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68 * @property fired
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69 * @type boolean
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70 * @default false
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71 */
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72 this.fired = false;
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73
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74 /**
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75 * For fireOnce events the arguments the event was fired with are stored
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76 * so that new subscribers get the proper payload.
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77 * @property firedWith
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78 * @type Array
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79 */
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80 this.firedWith = null;
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81
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82 /**
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83 * Custom events support two styles of arguments provided to the event
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84 * subscribers.
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85 * <ul>
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86 * <li>YAHOO.util.CustomEvent.LIST:
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87 * <ul>
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88 * <li>param1: event name</li>
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89 * <li>param2: array of arguments sent to fire</li>
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90 * <li>param3: <optional> a custom object supplied by the subscriber</li>
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91 * </ul>
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92 * </li>
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93 * <li>YAHOO.util.CustomEvent.FLAT
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94 * <ul>
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95 * <li>param1: the first argument passed to fire. If you need to
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96 * pass multiple parameters, use and array or object literal</li>
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97 * <li>param2: <optional> a custom object supplied by the subscriber</li>
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98 * </ul>
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99 * </li>
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100 * </ul>
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101 * @property signature
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102 * @type int
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103 */
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104 this.signature = signature || YAHOO.util.CustomEvent.LIST;
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105
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106 /**
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107 * The subscribers to this event
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108 * @property subscribers
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109 * @type Subscriber[]
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110 */
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111 this.subscribers = [];
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112
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113 if (!this.silent) {
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114 YAHOO.log( "Creating " + this, "info", "Event" );
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115 }
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116
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117 var onsubscribeType = "_YUICEOnSubscribe";
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118
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119 // Only add subscribe events for events that are not generated by
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120 // CustomEvent
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121 if (type !== onsubscribeType) {
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122
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123 /**
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124 * Custom events provide a custom event that fires whenever there is
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125 * a new subscriber to the event. This provides an opportunity to
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126 * handle the case where there is a non-repeating event that has
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127 * already fired has a new subscriber.
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128 *
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129 * @event subscribeEvent
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130 * @type YAHOO.util.CustomEvent
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131 * @param fn {Function} The function to execute
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132 * @param obj <Object> An object to be passed along when the event fires.
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133 * Defaults to the custom event.
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134 * @param override <boolean|Object> If true, the obj passed in becomes the
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135 * execution context of the listener. If an object, that object becomes
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136 * the execution context. Defaults to the custom event.
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137 */
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138 this.subscribeEvent =
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139 new YAHOO.util.CustomEvent(onsubscribeType, this, true);
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140
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141 }
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142
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143
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144 /**
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145 * In order to make it possible to execute the rest of the subscriber
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146 * stack when one thows an exception, the subscribers exceptions are
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147 * caught. The most recent exception is stored in this property
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148 * @property lastError
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149 * @type Error
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150 */
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151 this.lastError = null;
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152 };
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153
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154 /**
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155 * Subscriber listener sigature constant. The LIST type returns three
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156 * parameters: the event type, the array of args passed to fire, and
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157 * the optional custom object
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158 * @property YAHOO.util.CustomEvent.LIST
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159 * @static
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160 * @type int
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161 */
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162 YAHOO.util.CustomEvent.LIST = 0;
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163
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164 /**
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165 * Subscriber listener sigature constant. The FLAT type returns two
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166 * parameters: the first argument passed to fire and the optional
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167 * custom object
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168 * @property YAHOO.util.CustomEvent.FLAT
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169 * @static
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170 * @type int
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171 */
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172 YAHOO.util.CustomEvent.FLAT = 1;
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173
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174 YAHOO.util.CustomEvent.prototype = {
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175
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176 /**
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177 * Subscribes the caller to this event
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178 * @method subscribe
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179 * @param {Function} fn The function to execute
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180 * @param {Object} obj An object to be passed along when the event fires.
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181 * overrideContext <boolean|Object> If true, the obj passed in becomes the execution
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182 * context of the listener. If an object, that object becomes the execution context.
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183 */
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184 subscribe: function(fn, obj, overrideContext) {
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185
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186 if (!fn) {
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187 throw new Error("Invalid callback for subscriber to '" + this.type + "'");
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188 }
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189
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190 if (this.subscribeEvent) {
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191 this.subscribeEvent.fire(fn, obj, overrideContext);
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192 }
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193
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194 var s = new YAHOO.util.Subscriber(fn, obj, overrideContext);
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195
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196 if (this.fireOnce && this.fired) {
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197 this.notify(s, this.firedWith);
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198 } else {
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199 this.subscribers.push(s);
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200 }
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201 },
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202
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203 /**
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204 * Unsubscribes subscribers.
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205 * @method unsubscribe
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206 * @param {Function} fn The subscribed function to remove, if not supplied
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207 * all will be removed
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208 * @param {Object} obj The custom object passed to subscribe. This is
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209 * optional, but if supplied will be used to
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210 * disambiguate multiple listeners that are the same
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211 * (e.g., you subscribe many object using a function
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212 * that lives on the prototype)
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213 * @return {boolean} True if the subscriber was found and detached.
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214 */
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215 unsubscribe: function(fn, obj) {
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216
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217 if (!fn) {
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218 return this.unsubscribeAll();
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219 }
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220
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221 var found = false;
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222 for (var i=0, len=this.subscribers.length; i<len; ++i) {
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223 var s = this.subscribers[i];
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224 if (s && s.contains(fn, obj)) {
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225 this._delete(i);
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226 found = true;
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227 }
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228 }
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229
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230 return found;
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231 },
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232
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233 /**
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234 * Notifies the subscribers. The callback functions will be executed
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235 * from the context specified when the event was created, and with the
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236 * following parameters:
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237 * <ul>
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238 * <li>The type of event</li>
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239 * <li>All of the arguments fire() was executed with as an array</li>
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240 * <li>The custom object (if any) that was passed into the subscribe()
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241 * method</li>
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242 * </ul>
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243 * @method fire
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244 * @param {Object*} arguments an arbitrary set of parameters to pass to
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245 * the handler.
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246 * @return {boolean} false if one of the subscribers returned false,
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247 * true otherwise
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248 */
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249 fire: function() {
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250
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251 this.lastError = null;
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252
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253 var errors = [],
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254 len=this.subscribers.length;
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255
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256
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257 var args=[].slice.call(arguments, 0), ret=true, i, rebuild=false;
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258
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259 if (this.fireOnce) {
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260 if (this.fired) {
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261 YAHOO.log('fireOnce event has already fired: ' + this.type);
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262 return true;
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263 } else {
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264 this.firedWith = args;
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265 }
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266 }
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267
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268 this.fired = true;
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269
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270 if (!len && this.silent) {
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271 //YAHOO.log('DEBUG no subscribers');
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272 return true;
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273 }
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274
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275 if (!this.silent) {
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276 YAHOO.log( "Firing " + this + ", " +
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277 "args: " + args + ", " +
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278 "subscribers: " + len,
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279 "info", "Event" );
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280 }
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281
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282 // make a copy of the subscribers so that there are
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283 // no index problems if one subscriber removes another.
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284 var subs = this.subscribers.slice();
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285
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286 for (i=0; i<len; ++i) {
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287 var s = subs[i];
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288 if (!s) {
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289 rebuild=true;
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290 } else {
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291
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292 ret = this.notify(s, args);
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293
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294 if (false === ret) {
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295 if (!this.silent) {
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296 YAHOO.log("Event stopped, sub " + i + " of " + len, "info", "Event");
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297 }
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298
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299 break;
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300 }
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301 }
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302 }
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303
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304 return (ret !== false);
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305 },
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306
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307 notify: function(s, args) {
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308
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309 var ret, param=null, scope = s.getScope(this.scope),
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310 throwErrors = YAHOO.util.Event.throwErrors;
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311
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312 if (!this.silent) {
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313 YAHOO.log( this.type + "-> " + s, "info", "Event" );
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314 }
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315
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316 if (this.signature == YAHOO.util.CustomEvent.FLAT) {
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317
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318 if (args.length > 0) {
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319 param = args[0];
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320 }
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321
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322 try {
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323 ret = s.fn.call(scope, param, s.obj);
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324 } catch(e) {
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325 this.lastError = e;
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326 // errors.push(e);
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327 YAHOO.log(this + " subscriber exception: " + e, "error", "Event");
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328 if (throwErrors) {
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329 throw e;
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330 }
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331 }
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332 } else {
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333 try {
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334 ret = s.fn.call(scope, this.type, args, s.obj);
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335 } catch(ex) {
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336 this.lastError = ex;
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337 YAHOO.log(this + " subscriber exception: " + ex, "error", "Event");
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338 if (throwErrors) {
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339 throw ex;
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340 }
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341 }
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342 }
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343
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344 return ret;
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345 },
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346
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347 /**
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348 * Removes all listeners
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349 * @method unsubscribeAll
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350 * @return {int} The number of listeners unsubscribed
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351 */
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352 unsubscribeAll: function() {
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353 var l = this.subscribers.length, i;
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354 for (i=l-1; i>-1; i--) {
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355 this._delete(i);
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356 }
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357
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358 this.subscribers=[];
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359
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360 return l;
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361 },
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362
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363 /**
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364 * @method _delete
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365 * @private
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366 */
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367 _delete: function(index) {
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368 var s = this.subscribers[index];
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369 if (s) {
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370 delete s.fn;
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371 delete s.obj;
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372 }
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373
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374 // this.subscribers[index]=null;
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375 this.subscribers.splice(index, 1);
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376 },
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377
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378 /**
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379 * @method toString
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380 */
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381 toString: function() {
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382 return "CustomEvent: " + "'" + this.type + "', " +
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383 "context: " + this.scope;
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384
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385 }
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386 };
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387
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388 /////////////////////////////////////////////////////////////////////
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389
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390 /**
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391 * Stores the subscriber information to be used when the event fires.
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392 * @param {Function} fn The function to execute
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393 * @param {Object} obj An object to be passed along when the event fires
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394 * @param {boolean} overrideContext If true, the obj passed in becomes the execution
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395 * context of the listener
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396 * @class Subscriber
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397 * @constructor
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398 */
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399 YAHOO.util.Subscriber = function(fn, obj, overrideContext) {
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400
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401 /**
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402 * The callback that will be execute when the event fires
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403 * @property fn
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404 * @type function
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405 */
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406 this.fn = fn;
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407
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408 /**
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409 * An optional custom object that will passed to the callback when
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410 * the event fires
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411 * @property obj
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412 * @type object
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413 */
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414 this.obj = YAHOO.lang.isUndefined(obj) ? null : obj;
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415
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416 /**
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417 * The default execution context for the event listener is defined when the
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418 * event is created (usually the object which contains the event).
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419 * By setting overrideContext to true, the execution context becomes the custom
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420 * object passed in by the subscriber. If overrideContext is an object, that
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421 * object becomes the context.
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422 * @property overrideContext
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423 * @type boolean|object
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424 */
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425 this.overrideContext = overrideContext;
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426
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427 };
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428
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429 /**
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430 * Returns the execution context for this listener. If overrideContext was set to true
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431 * the custom obj will be the context. If overrideContext is an object, that is the
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432 * context, otherwise the default context will be used.
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433 * @method getScope
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434 * @param {Object} defaultScope the context to use if this listener does not
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435 * override it.
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436 */
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437 YAHOO.util.Subscriber.prototype.getScope = function(defaultScope) {
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438 if (this.overrideContext) {
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439 if (this.overrideContext === true) {
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440 return this.obj;
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441 } else {
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|
|
442 return this.overrideContext;
|
|
|
443 }
|
|
|
444 }
|
|
|
445 return defaultScope;
|
|
|
446 };
|
|
|
447
|
|
|
448 /**
|
|
|
449 * Returns true if the fn and obj match this objects properties.
|
|
|
450 * Used by the unsubscribe method to match the right subscriber.
|
|
|
451 *
|
|
|
452 * @method contains
|
|
|
453 * @param {Function} fn the function to execute
|
|
|
454 * @param {Object} obj an object to be passed along when the event fires
|
|
|
455 * @return {boolean} true if the supplied arguments match this
|
|
|
456 * subscriber's signature.
|
|
|
457 */
|
|
|
458 YAHOO.util.Subscriber.prototype.contains = function(fn, obj) {
|
|
|
459 if (obj) {
|
|
|
460 return (this.fn == fn && this.obj == obj);
|
|
|
461 } else {
|
|
|
462 return (this.fn == fn);
|
|
|
463 }
|
|
|
464 };
|
|
|
465
|
|
|
466 /**
|
|
|
467 * @method toString
|
|
|
468 */
|
|
|
469 YAHOO.util.Subscriber.prototype.toString = function() {
|
|
|
470 return "Subscriber { obj: " + this.obj +
|
|
|
471 ", overrideContext: " + (this.overrideContext || "no") + " }";
|
|
|
472 };
|
|
|
473
|
|
|
474 /**
|
|
|
475 * The Event Utility provides utilities for managing DOM Events and tools
|
|
|
476 * for building event systems
|
|
|
477 *
|
|
|
478 * @module event
|
|
|
479 * @title Event Utility
|
|
|
480 * @namespace YAHOO.util
|
|
|
481 * @requires yahoo
|
|
|
482 */
|
|
|
483
|
|
|
484 // The first instance of Event will win if it is loaded more than once.
|
|
|
485 // @TODO this needs to be changed so that only the state data that needs to
|
|
|
486 // be preserved is kept, while methods are overwritten/added as needed.
|
|
|
487 // This means that the module pattern can't be used.
|
|
|
488 if (!YAHOO.util.Event) {
|
|
|
489
|
|
|
490 /**
|
|
|
491 * The event utility provides functions to add and remove event listeners,
|
|
|
492 * event cleansing. It also tries to automatically remove listeners it
|
|
|
493 * registers during the unload event.
|
|
|
494 *
|
|
|
495 * @class Event
|
|
|
496 * @static
|
|
|
497 */
|
|
|
498 YAHOO.util.Event = function() {
|
|
|
499
|
|
|
500 /**
|
|
|
501 * True after the onload event has fired
|
|
|
502 * @property loadComplete
|
|
|
503 * @type boolean
|
|
|
504 * @static
|
|
|
505 * @private
|
|
|
506 */
|
|
|
507 var loadComplete = false,
|
|
|
508
|
|
|
509 /**
|
|
|
510 * Cache of wrapped listeners
|
|
|
511 * @property listeners
|
|
|
512 * @type array
|
|
|
513 * @static
|
|
|
514 * @private
|
|
|
515 */
|
|
|
516 listeners = [],
|
|
|
517
|
|
|
518
|
|
|
519 /**
|
|
|
520 * User-defined unload function that will be fired before all events
|
|
|
521 * are detached
|
|
|
522 * @property unloadListeners
|
|
|
523 * @type array
|
|
|
524 * @static
|
|
|
525 * @private
|
|
|
526 */
|
|
|
527 unloadListeners = [],
|
|
|
528
|
|
|
529 /**
|
|
|
530 * The number of times to poll after window.onload. This number is
|
|
|
531 * increased if additional late-bound handlers are requested after
|
|
|
532 * the page load.
|
|
|
533 * @property retryCount
|
|
|
534 * @static
|
|
|
535 * @private
|
|
|
536 */
|
|
|
537 retryCount = 0,
|
|
|
538
|
|
|
539 /**
|
|
|
540 * onAvailable listeners
|
|
|
541 * @property onAvailStack
|
|
|
542 * @static
|
|
|
543 * @private
|
|
|
544 */
|
|
|
545 onAvailStack = [],
|
|
|
546
|
|
|
547 /**
|
|
|
548 * Counter for auto id generation
|
|
|
549 * @property counter
|
|
|
550 * @static
|
|
|
551 * @private
|
|
|
552 */
|
|
|
553 counter = 0,
|
|
|
554
|
|
|
555 /**
|
|
|
556 * Normalized keycodes for webkit/safari
|
|
|
557 * @property webkitKeymap
|
|
|
558 * @type {int: int}
|
|
|
559 * @private
|
|
|
560 * @static
|
|
|
561 * @final
|
|
|
562 */
|
|
|
563 webkitKeymap = {
|
|
|
564 63232: 38, // up
|
|
|
565 63233: 40, // down
|
|
|
566 63234: 37, // left
|
|
|
567 63235: 39, // right
|
|
|
568 63276: 33, // page up
|
|
|
569 63277: 34, // page down
|
|
|
570 25: 9 // SHIFT-TAB (Safari provides a different key code in
|
|
|
571 // this case, even though the shiftKey modifier is set)
|
|
|
572 },
|
|
|
573
|
|
|
574 isIE = YAHOO.env.ua.ie,
|
|
|
575
|
|
|
576 // String constants used by the addFocusListener and removeFocusListener methods
|
|
|
577
|
|
|
578 FOCUSIN = "focusin",
|
|
|
579 FOCUSOUT = "focusout";
|
|
|
580
|
|
|
581 return {
|
|
|
582
|
|
|
583 /**
|
|
|
584 * The number of times we should look for elements that are not
|
|
|
585 * in the DOM at the time the event is requested after the document
|
|
|
586 * has been loaded. The default is 500@amp;40 ms, so it will poll
|
|
|
587 * for 20 seconds or until all outstanding handlers are bound
|
|
|
588 * (whichever comes first).
|
|
|
589 * @property POLL_RETRYS
|
|
|
590 * @type int
|
|
|
591 * @static
|
|
|
592 * @final
|
|
|
593 */
|
|
|
594 POLL_RETRYS: 500,
|
|
|
595
|
|
|
596 /**
|
|
|
597 * The poll interval in milliseconds
|
|
|
598 * @property POLL_INTERVAL
|
|
|
599 * @type int
|
|
|
600 * @static
|
|
|
601 * @final
|
|
|
602 */
|
|
|
603 POLL_INTERVAL: 40,
|
|
|
604
|
|
|
605 /**
|
|
|
606 * Element to bind, int constant
|
|
|
607 * @property EL
|
|
|
608 * @type int
|
|
|
609 * @static
|
|
|
610 * @final
|
|
|
611 */
|
|
|
612 EL: 0,
|
|
|
613
|
|
|
614 /**
|
|
|
615 * Type of event, int constant
|
|
|
616 * @property TYPE
|
|
|
617 * @type int
|
|
|
618 * @static
|
|
|
619 * @final
|
|
|
620 */
|
|
|
621 TYPE: 1,
|
|
|
622
|
|
|
623 /**
|
|
|
624 * Function to execute, int constant
|
|
|
625 * @property FN
|
|
|
626 * @type int
|
|
|
627 * @static
|
|
|
628 * @final
|
|
|
629 */
|
|
|
630 FN: 2,
|
|
|
631
|
|
|
632 /**
|
|
|
633 * Function wrapped for context correction and cleanup, int constant
|
|
|
634 * @property WFN
|
|
|
635 * @type int
|
|
|
636 * @static
|
|
|
637 * @final
|
|
|
638 */
|
|
|
639 WFN: 3,
|
|
|
640
|
|
|
641 /**
|
|
|
642 * Object passed in by the user that will be returned as a
|
|
|
643 * parameter to the callback, int constant. Specific to
|
|
|
644 * unload listeners
|
|
|
645 * @property OBJ
|
|
|
646 * @type int
|
|
|
647 * @static
|
|
|
648 * @final
|
|
|
649 */
|
|
|
650 UNLOAD_OBJ: 3,
|
|
|
651
|
|
|
652 /**
|
|
|
653 * Adjusted context, either the element we are registering the event
|
|
|
654 * on or the custom object passed in by the listener, int constant
|
|
|
655 * @property ADJ_SCOPE
|
|
|
656 * @type int
|
|
|
657 * @static
|
|
|
658 * @final
|
|
|
659 */
|
|
|
660 ADJ_SCOPE: 4,
|
|
|
661
|
|
|
662 /**
|
|
|
663 * The original obj passed into addListener
|
|
|
664 * @property OBJ
|
|
|
665 * @type int
|
|
|
666 * @static
|
|
|
667 * @final
|
|
|
668 */
|
|
|
669 OBJ: 5,
|
|
|
670
|
|
|
671 /**
|
|
|
672 * The original context parameter passed into addListener
|
|
|
673 * @property OVERRIDE
|
|
|
674 * @type int
|
|
|
675 * @static
|
|
|
676 * @final
|
|
|
677 */
|
|
|
678 OVERRIDE: 6,
|
|
|
679
|
|
|
680 /**
|
|
|
681 * The original capture parameter passed into addListener
|
|
|
682 * @property CAPTURE
|
|
|
683 * @type int
|
|
|
684 * @static
|
|
|
685 * @final
|
|
|
686 */
|
|
|
687 CAPTURE: 7,
|
|
|
688
|
|
|
689 /**
|
|
|
690 * addListener/removeListener can throw errors in unexpected scenarios.
|
|
|
691 * These errors are suppressed, the method returns false, and this property
|
|
|
692 * is set
|
|
|
693 * @property lastError
|
|
|
694 * @static
|
|
|
695 * @type Error
|
|
|
696 */
|
|
|
697 lastError: null,
|
|
|
698
|
|
|
699 /**
|
|
|
700 * Safari detection
|
|
|
701 * @property isSafari
|
|
|
702 * @private
|
|
|
703 * @static
|
|
|
704 * @deprecated use YAHOO.env.ua.webkit
|
|
|
705 */
|
|
|
706 isSafari: YAHOO.env.ua.webkit,
|
|
|
707
|
|
|
708 /**
|
|
|
709 * webkit version
|
|
|
710 * @property webkit
|
|
|
711 * @type string
|
|
|
712 * @private
|
|
|
713 * @static
|
|
|
714 * @deprecated use YAHOO.env.ua.webkit
|
|
|
715 */
|
|
|
716 webkit: YAHOO.env.ua.webkit,
|
|
|
717
|
|
|
718 /**
|
|
|
719 * IE detection
|
|
|
720 * @property isIE
|
|
|
721 * @private
|
|
|
722 * @static
|
|
|
723 * @deprecated use YAHOO.env.ua.ie
|
|
|
724 */
|
|
|
725 isIE: isIE,
|
|
|
726
|
|
|
727 /**
|
|
|
728 * poll handle
|
|
|
729 * @property _interval
|
|
|
730 * @static
|
|
|
731 * @private
|
|
|
732 */
|
|
|
733 _interval: null,
|
|
|
734
|
|
|
735 /**
|
|
|
736 * document readystate poll handle
|
|
|
737 * @property _dri
|
|
|
738 * @static
|
|
|
739 * @private
|
|
|
740 */
|
|
|
741 _dri: null,
|
|
|
742
|
|
|
743
|
|
|
744 /**
|
|
|
745 * Map of special event types
|
|
|
746 * @property _specialTypes
|
|
|
747 * @static
|
|
|
748 * @private
|
|
|
749 */
|
|
|
750 _specialTypes: {
|
|
|
751 focusin: (isIE ? "focusin" : "focus"),
|
|
|
752 focusout: (isIE ? "focusout" : "blur")
|
|
|
753 },
|
|
|
754
|
|
|
755
|
|
|
756 /**
|
|
|
757 * True when the document is initially usable
|
|
|
758 * @property DOMReady
|
|
|
759 * @type boolean
|
|
|
760 * @static
|
|
|
761 */
|
|
|
762 DOMReady: false,
|
|
|
763
|
|
|
764 /**
|
|
|
765 * Errors thrown by subscribers of custom events are caught
|
|
|
766 * and the error message is written to the debug console. If
|
|
|
767 * this property is set to true, it will also re-throw the
|
|
|
768 * error.
|
|
|
769 * @property throwErrors
|
|
|
770 * @type boolean
|
|
|
771 * @default false
|
|
|
772 */
|
|
|
773 throwErrors: false,
|
|
|
774
|
|
|
775
|
|
|
776 /**
|
|
|
777 * @method startInterval
|
|
|
778 * @static
|
|
|
779 * @private
|
|
|
780 */
|
|
|
781 startInterval: function() {
|
|
|
782 if (!this._interval) {
|
|
|
783 // var self = this;
|
|
|
784 // var callback = function() { self._tryPreloadAttach(); };
|
|
|
785 // this._interval = setInterval(callback, this.POLL_INTERVAL);
|
|
|
786 this._interval = YAHOO.lang.later(this.POLL_INTERVAL, this, this._tryPreloadAttach, null, true);
|
|
|
787 }
|
|
|
788 },
|
|
|
789
|
|
|
790 /**
|
|
|
791 * Executes the supplied callback when the item with the supplied
|
|
|
792 * id is found. This is meant to be used to execute behavior as
|
|
|
793 * soon as possible as the page loads. If you use this after the
|
|
|
794 * initial page load it will poll for a fixed time for the element.
|
|
|
795 * The number of times it will poll and the frequency are
|
|
|
796 * configurable. By default it will poll for 10 seconds.
|
|
|
797 *
|
|
|
798 * <p>The callback is executed with a single parameter:
|
|
|
799 * the custom object parameter, if provided.</p>
|
|
|
800 *
|
|
|
801 * @method onAvailable
|
|
|
802 *
|
|
|
803 * @param {string||string[]} id the id of the element, or an array
|
|
|
804 * of ids to look for.
|
|
|
805 * @param {function} fn what to execute when the element is found.
|
|
|
806 * @param {object} obj an optional object to be passed back as
|
|
|
807 * a parameter to fn.
|
|
|
808 * @param {boolean|object} overrideContext If set to true, fn will execute
|
|
|
809 * in the context of obj, if set to an object it
|
|
|
810 * will execute in the context of that object
|
|
|
811 * @param checkContent {boolean} check child node readiness (onContentReady)
|
|
|
812 * @static
|
|
|
813 */
|
|
|
814 onAvailable: function(id, fn, obj, overrideContext, checkContent) {
|
|
|
815
|
|
|
816 var a = (YAHOO.lang.isString(id)) ? [id] : id;
|
|
|
817
|
|
|
818 for (var i=0; i<a.length; i=i+1) {
|
|
|
819 onAvailStack.push({id: a[i],
|
|
|
820 fn: fn,
|
|
|
821 obj: obj,
|
|
|
822 overrideContext: overrideContext,
|
|
|
823 checkReady: checkContent });
|
|
|
824 }
|
|
|
825
|
|
|
826 retryCount = this.POLL_RETRYS;
|
|
|
827
|
|
|
828 this.startInterval();
|
|
|
829 },
|
|
|
830
|
|
|
831 /**
|
|
|
832 * Works the same way as onAvailable, but additionally checks the
|
|
|
833 * state of sibling elements to determine if the content of the
|
|
|
834 * available element is safe to modify.
|
|
|
835 *
|
|
|
836 * <p>The callback is executed with a single parameter:
|
|
|
837 * the custom object parameter, if provided.</p>
|
|
|
838 *
|
|
|
839 * @method onContentReady
|
|
|
840 *
|
|
|
841 * @param {string} id the id of the element to look for.
|
|
|
842 * @param {function} fn what to execute when the element is ready.
|
|
|
843 * @param {object} obj an optional object to be passed back as
|
|
|
844 * a parameter to fn.
|
|
|
845 * @param {boolean|object} overrideContext If set to true, fn will execute
|
|
|
846 * in the context of obj. If an object, fn will
|
|
|
847 * exectute in the context of that object
|
|
|
848 *
|
|
|
849 * @static
|
|
|
850 */
|
|
|
851 onContentReady: function(id, fn, obj, overrideContext) {
|
|
|
852 this.onAvailable(id, fn, obj, overrideContext, true);
|
|
|
853 },
|
|
|
854
|
|
|
855 /**
|
|
|
856 * Executes the supplied callback when the DOM is first usable. This
|
|
|
857 * will execute immediately if called after the DOMReady event has
|
|
|
858 * fired. @todo the DOMContentReady event does not fire when the
|
|
|
859 * script is dynamically injected into the page. This means the
|
|
|
860 * DOMReady custom event will never fire in FireFox or Opera when the
|
|
|
861 * library is injected. It _will_ fire in Safari, and the IE
|
|
|
862 * implementation would allow for us to fire it if the defered script
|
|
|
863 * is not available. We want this to behave the same in all browsers.
|
|
|
864 * Is there a way to identify when the script has been injected
|
|
|
865 * instead of included inline? Is there a way to know whether the
|
|
|
866 * window onload event has fired without having had a listener attached
|
|
|
867 * to it when it did so?
|
|
|
868 *
|
|
|
869 * <p>The callback is a CustomEvent, so the signature is:</p>
|
|
|
870 * <p>type <string>, args <array>, customobject <object></p>
|
|
|
871 * <p>For DOMReady events, there are no fire argments, so the
|
|
|
872 * signature is:</p>
|
|
|
873 * <p>"DOMReady", [], obj</p>
|
|
|
874 *
|
|
|
875 *
|
|
|
876 * @method onDOMReady
|
|
|
877 *
|
|
|
878 * @param {function} fn what to execute when the element is found.
|
|
|
879 * @param {object} obj an optional object to be passed back as
|
|
|
880 * a parameter to fn.
|
|
|
881 * @param {boolean|object} overrideContext If set to true, fn will execute
|
|
|
882 * in the context of obj, if set to an object it
|
|
|
883 * will execute in the context of that object
|
|
|
884 *
|
|
|
885 * @static
|
|
|
886 */
|
|
|
887 // onDOMReady: function(fn, obj, overrideContext) {
|
|
|
888 onDOMReady: function() {
|
|
|
889 this.DOMReadyEvent.subscribe.apply(this.DOMReadyEvent, arguments);
|
|
|
890 },
|
|
|
891
|
|
|
892
|
|
|
893 /**
|
|
|
894 * Appends an event handler
|
|
|
895 *
|
|
|
896 * @method _addListener
|
|
|
897 *
|
|
|
898 * @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
899 * reference, or a collection of ids and/or elements to assign the
|
|
|
900 * listener to.
|
|
|
901 * @param {String} sType The type of event to append
|
|
|
902 * @param {Function} fn The method the event invokes
|
|
|
903 * @param {Object} obj An arbitrary object that will be
|
|
|
904 * passed as a parameter to the handler
|
|
|
905 * @param {Boolean|object} overrideContext If true, the obj passed in becomes
|
|
|
906 * the execution context of the listener. If an
|
|
|
907 * object, this object becomes the execution
|
|
|
908 * context.
|
|
|
909 * @param {boolen} capture capture or bubble phase
|
|
|
910 * @return {Boolean} True if the action was successful or defered,
|
|
|
911 * false if one or more of the elements
|
|
|
912 * could not have the listener attached,
|
|
|
913 * or if the operation throws an exception.
|
|
|
914 * @private
|
|
|
915 * @static
|
|
|
916 */
|
|
|
917 _addListener: function(el, sType, fn, obj, overrideContext, bCapture) {
|
|
|
918
|
|
|
919 if (!fn || !fn.call) {
|
|
|
920 YAHOO.log(sType + " addListener failed, invalid callback", "error", "Event");
|
|
|
921 return false;
|
|
|
922 }
|
|
|
923
|
|
|
924 // The el argument can be an array of elements or element ids.
|
|
|
925 if ( this._isValidCollection(el)) {
|
|
|
926 var ok = true;
|
|
|
927 for (var i=0,len=el.length; i<len; ++i) {
|
|
|
928 ok = this.on(el[i],
|
|
|
929 sType,
|
|
|
930 fn,
|
|
|
931 obj,
|
|
|
932 overrideContext) && ok;
|
|
|
933 }
|
|
|
934 return ok;
|
|
|
935
|
|
|
936 } else if (YAHOO.lang.isString(el)) {
|
|
|
937 var oEl = this.getEl(el);
|
|
|
938 // If the el argument is a string, we assume it is
|
|
|
939 // actually the id of the element. If the page is loaded
|
|
|
940 // we convert el to the actual element, otherwise we
|
|
|
941 // defer attaching the event until onload event fires
|
|
|
942
|
|
|
943 // check to see if we need to delay hooking up the event
|
|
|
944 // until after the page loads.
|
|
|
945 if (oEl) {
|
|
|
946 el = oEl;
|
|
|
947 } else {
|
|
|
948 // defer adding the event until the element is available
|
|
|
949 this.onAvailable(el, function() {
|
|
|
950 YAHOO.util.Event._addListener(el, sType, fn, obj, overrideContext, bCapture);
|
|
|
951 });
|
|
|
952
|
|
|
953 return true;
|
|
|
954 }
|
|
|
955 }
|
|
|
956
|
|
|
957 // Element should be an html element or an array if we get
|
|
|
958 // here.
|
|
|
959 if (!el) {
|
|
|
960 // this.logger.debug("unable to attach event " + sType);
|
|
|
961 return false;
|
|
|
962 }
|
|
|
963
|
|
|
964 // we need to make sure we fire registered unload events
|
|
|
965 // prior to automatically unhooking them. So we hang on to
|
|
|
966 // these instead of attaching them to the window and fire the
|
|
|
967 // handles explicitly during our one unload event.
|
|
|
968 if ("unload" == sType && obj !== this) {
|
|
|
969 unloadListeners[unloadListeners.length] =
|
|
|
970 [el, sType, fn, obj, overrideContext];
|
|
|
971 return true;
|
|
|
972 }
|
|
|
973
|
|
|
974 // this.logger.debug("Adding handler: " + el + ", " + sType);
|
|
|
975
|
|
|
976 // if the user chooses to override the context, we use the custom
|
|
|
977 // object passed in, otherwise the executing context will be the
|
|
|
978 // HTML element that the event is registered on
|
|
|
979 var context = el;
|
|
|
980 if (overrideContext) {
|
|
|
981 if (overrideContext === true) {
|
|
|
982 context = obj;
|
|
|
983 } else {
|
|
|
984 context = overrideContext;
|
|
|
985 }
|
|
|
986 }
|
|
|
987
|
|
|
988 // wrap the function so we can return the obj object when
|
|
|
989 // the event fires;
|
|
|
990 var wrappedFn = function(e) {
|
|
|
991 return fn.call(context, YAHOO.util.Event.getEvent(e, el),
|
|
|
992 obj);
|
|
|
993 };
|
|
|
994
|
|
|
995 var li = [el, sType, fn, wrappedFn, context, obj, overrideContext, bCapture];
|
|
|
996 var index = listeners.length;
|
|
|
997 // cache the listener so we can try to automatically unload
|
|
|
998 listeners[index] = li;
|
|
|
999
|
|
|
1000 try {
|
|
|
1001 this._simpleAdd(el, sType, wrappedFn, bCapture);
|
|
|
1002 } catch(ex) {
|
|
|
1003 // handle an error trying to attach an event. If it fails
|
|
|
1004 // we need to clean up the cache
|
|
|
1005 this.lastError = ex;
|
|
|
1006 this.removeListener(el, sType, fn);
|
|
|
1007 return false;
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 return true;
|
|
|
1011
|
|
|
1012 },
|
|
|
1013
|
|
|
1014 /**
|
|
|
1015 * Checks to see if the type requested is a special type
|
|
|
1016 * (as defined by the _specialTypes hash), and (if so) returns
|
|
|
1017 * the special type name.
|
|
|
1018 *
|
|
|
1019 * @method _getType
|
|
|
1020 *
|
|
|
1021 * @param {String} sType The type to look up
|
|
|
1022 * @private
|
|
|
1023 */
|
|
|
1024 _getType: function (type) {
|
|
|
1025
|
|
|
1026 return this._specialTypes[type] || type;
|
|
|
1027
|
|
|
1028 },
|
|
|
1029
|
|
|
1030
|
|
|
1031 /**
|
|
|
1032 * Appends an event handler
|
|
|
1033 *
|
|
|
1034 * @method addListener
|
|
|
1035 *
|
|
|
1036 * @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1037 * reference, or a collection of ids and/or elements to assign the
|
|
|
1038 * listener to.
|
|
|
1039 * @param {String} sType The type of event to append
|
|
|
1040 * @param {Function} fn The method the event invokes
|
|
|
1041 * @param {Object} obj An arbitrary object that will be
|
|
|
1042 * passed as a parameter to the handler
|
|
|
1043 * @param {Boolean|object} overrideContext If true, the obj passed in becomes
|
|
|
1044 * the execution context of the listener. If an
|
|
|
1045 * object, this object becomes the execution
|
|
|
1046 * context.
|
|
|
1047 * @return {Boolean} True if the action was successful or defered,
|
|
|
1048 * false if one or more of the elements
|
|
|
1049 * could not have the listener attached,
|
|
|
1050 * or if the operation throws an exception.
|
|
|
1051 * @static
|
|
|
1052 */
|
|
|
1053 addListener: function (el, sType, fn, obj, overrideContext) {
|
|
|
1054
|
|
|
1055 var capture = ((sType == FOCUSIN || sType == FOCUSOUT) && !YAHOO.env.ua.ie) ? true : false;
|
|
|
1056
|
|
|
1057 return this._addListener(el, this._getType(sType), fn, obj, overrideContext, capture);
|
|
|
1058
|
|
|
1059 },
|
|
|
1060
|
|
|
1061
|
|
|
1062 /**
|
|
|
1063 * Attaches a focusin event listener to the specified element for
|
|
|
1064 * the purpose of listening for the focus event on the element's
|
|
|
1065 * descendants.
|
|
|
1066 * @method addFocusListener
|
|
|
1067 *
|
|
|
1068 * @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1069 * reference, or a collection of ids and/or elements to assign the
|
|
|
1070 * listener to.
|
|
|
1071 * @param {Function} fn The method the event invokes
|
|
|
1072 * @param {Object} obj An arbitrary object that will be
|
|
|
1073 * passed as a parameter to the handler
|
|
|
1074 * @param {Boolean|object} overrideContext If true, the obj passed in becomes
|
|
|
1075 * the execution context of the listener. If an
|
|
|
1076 * object, this object becomes the execution
|
|
|
1077 * context.
|
|
|
1078 * @return {Boolean} True if the action was successful or defered,
|
|
|
1079 * false if one or more of the elements
|
|
|
1080 * could not have the listener attached,
|
|
|
1081 * or if the operation throws an exception.
|
|
|
1082 * @static
|
|
|
1083 * @deprecated use YAHOO.util.Event.on and specify "focusin" as the event type.
|
|
|
1084 */
|
|
|
1085 addFocusListener: function (el, fn, obj, overrideContext) {
|
|
|
1086 return this.on(el, FOCUSIN, fn, obj, overrideContext);
|
|
|
1087 },
|
|
|
1088
|
|
|
1089
|
|
|
1090 /**
|
|
|
1091 * Removes a focusin event listener to the specified element for
|
|
|
1092 * the purpose of listening for the focus event on the element's
|
|
|
1093 * descendants.
|
|
|
1094 *
|
|
|
1095 * @method removeFocusListener
|
|
|
1096 *
|
|
|
1097 * @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1098 * reference, or a collection of ids and/or elements to remove
|
|
|
1099 * the listener from.
|
|
|
1100 * @param {Function} fn the method the event invokes. If fn is
|
|
|
1101 * undefined, then all event handlers for the type of event are
|
|
|
1102 * removed.
|
|
|
1103 * @return {boolean} true if the unbind was successful, false
|
|
|
1104 * otherwise.
|
|
|
1105 * @static
|
|
|
1106 * @deprecated use YAHOO.util.Event.removeListener and specify "focusin" as the event type.
|
|
|
1107 */
|
|
|
1108 removeFocusListener: function (el, fn) {
|
|
|
1109 return this.removeListener(el, FOCUSIN, fn);
|
|
|
1110 },
|
|
|
1111
|
|
|
1112 /**
|
|
|
1113 * Attaches a focusout event listener to the specified element for
|
|
|
1114 * the purpose of listening for the blur event on the element's
|
|
|
1115 * descendants.
|
|
|
1116 *
|
|
|
1117 * @method addBlurListener
|
|
|
1118 *
|
|
|
1119 * @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1120 * reference, or a collection of ids and/or elements to assign the
|
|
|
1121 * listener to.
|
|
|
1122 * @param {Function} fn The method the event invokes
|
|
|
1123 * @param {Object} obj An arbitrary object that will be
|
|
|
1124 * passed as a parameter to the handler
|
|
|
1125 * @param {Boolean|object} overrideContext If true, the obj passed in becomes
|
|
|
1126 * the execution context of the listener. If an
|
|
|
1127 * object, this object becomes the execution
|
|
|
1128 * context.
|
|
|
1129 * @return {Boolean} True if the action was successful or defered,
|
|
|
1130 * false if one or more of the elements
|
|
|
1131 * could not have the listener attached,
|
|
|
1132 * or if the operation throws an exception.
|
|
|
1133 * @static
|
|
|
1134 * @deprecated use YAHOO.util.Event.on and specify "focusout" as the event type.
|
|
|
1135 */
|
|
|
1136 addBlurListener: function (el, fn, obj, overrideContext) {
|
|
|
1137 return this.on(el, FOCUSOUT, fn, obj, overrideContext);
|
|
|
1138 },
|
|
|
1139
|
|
|
1140 /**
|
|
|
1141 * Removes a focusout event listener to the specified element for
|
|
|
1142 * the purpose of listening for the blur event on the element's
|
|
|
1143 * descendants.
|
|
|
1144 *
|
|
|
1145 * @method removeBlurListener
|
|
|
1146 *
|
|
|
1147 * @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1148 * reference, or a collection of ids and/or elements to remove
|
|
|
1149 * the listener from.
|
|
|
1150 * @param {Function} fn the method the event invokes. If fn is
|
|
|
1151 * undefined, then all event handlers for the type of event are
|
|
|
1152 * removed.
|
|
|
1153 * @return {boolean} true if the unbind was successful, false
|
|
|
1154 * otherwise.
|
|
|
1155 * @static
|
|
|
1156 * @deprecated use YAHOO.util.Event.removeListener and specify "focusout" as the event type.
|
|
|
1157 */
|
|
|
1158 removeBlurListener: function (el, fn) {
|
|
|
1159 return this.removeListener(el, FOCUSOUT, fn);
|
|
|
1160 },
|
|
|
1161
|
|
|
1162 /**
|
|
|
1163 * Removes an event listener
|
|
|
1164 *
|
|
|
1165 * @method removeListener
|
|
|
1166 *
|
|
|
1167 * @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1168 * reference, or a collection of ids and/or elements to remove
|
|
|
1169 * the listener from.
|
|
|
1170 * @param {String} sType the type of event to remove.
|
|
|
1171 * @param {Function} fn the method the event invokes. If fn is
|
|
|
1172 * undefined, then all event handlers for the type of event are
|
|
|
1173 * removed.
|
|
|
1174 * @return {boolean} true if the unbind was successful, false
|
|
|
1175 * otherwise.
|
|
|
1176 * @static
|
|
|
1177 */
|
|
|
1178 removeListener: function(el, sType, fn) {
|
|
|
1179 var i, len, li;
|
|
|
1180
|
|
|
1181 sType = this._getType(sType);
|
|
|
1182
|
|
|
1183 // The el argument can be a string
|
|
|
1184 if (typeof el == "string") {
|
|
|
1185 el = this.getEl(el);
|
|
|
1186 // The el argument can be an array of elements or element ids.
|
|
|
1187 } else if ( this._isValidCollection(el)) {
|
|
|
1188 var ok = true;
|
|
|
1189 for (i=el.length-1; i>-1; i--) {
|
|
|
1190 ok = ( this.removeListener(el[i], sType, fn) && ok );
|
|
|
1191 }
|
|
|
1192 return ok;
|
|
|
1193 }
|
|
|
1194
|
|
|
1195 if (!fn || !fn.call) {
|
|
|
1196 // this.logger.debug("Error, function is not valid " + fn);
|
|
|
1197 //return false;
|
|
|
1198 return this.purgeElement(el, false, sType);
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 if ("unload" == sType) {
|
|
|
1202
|
|
|
1203 for (i=unloadListeners.length-1; i>-1; i--) {
|
|
|
1204 li = unloadListeners[i];
|
|
|
1205 if (li &&
|
|
|
1206 li[0] == el &&
|
|
|
1207 li[1] == sType &&
|
|
|
1208 li[2] == fn) {
|
|
|
1209 unloadListeners.splice(i, 1);
|
|
|
1210 // unloadListeners[i]=null;
|
|
|
1211 return true;
|
|
|
1212 }
|
|
|
1213 }
|
|
|
1214
|
|
|
1215 return false;
|
|
|
1216 }
|
|
|
1217
|
|
|
1218 var cacheItem = null;
|
|
|
1219
|
|
|
1220 // The index is a hidden parameter; needed to remove it from
|
|
|
1221 // the method signature because it was tempting users to
|
|
|
1222 // try and take advantage of it, which is not possible.
|
|
|
1223 var index = arguments[3];
|
|
|
1224
|
|
|
1225 if ("undefined" === typeof index) {
|
|
|
1226 index = this._getCacheIndex(listeners, el, sType, fn);
|
|
|
1227 }
|
|
|
1228
|
|
|
1229 if (index >= 0) {
|
|
|
1230 cacheItem = listeners[index];
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 if (!el || !cacheItem) {
|
|
|
1234 // this.logger.debug("cached listener not found");
|
|
|
1235 return false;
|
|
|
1236 }
|
|
|
1237
|
|
|
1238 // this.logger.debug("Removing handler: " + el + ", " + sType);
|
|
|
1239
|
|
|
1240 var bCapture = cacheItem[this.CAPTURE] === true ? true : false;
|
|
|
1241
|
|
|
1242 try {
|
|
|
1243 this._simpleRemove(el, sType, cacheItem[this.WFN], bCapture);
|
|
|
1244 } catch(ex) {
|
|
|
1245 this.lastError = ex;
|
|
|
1246 return false;
|
|
|
1247 }
|
|
|
1248
|
|
|
1249 // removed the wrapped handler
|
|
|
1250 delete listeners[index][this.WFN];
|
|
|
1251 delete listeners[index][this.FN];
|
|
|
1252 listeners.splice(index, 1);
|
|
|
1253 // listeners[index]=null;
|
|
|
1254
|
|
|
1255 return true;
|
|
|
1256
|
|
|
1257 },
|
|
|
1258
|
|
|
1259 /**
|
|
|
1260 * Returns the event's target element. Safari sometimes provides
|
|
|
1261 * a text node, and this is automatically resolved to the text
|
|
|
1262 * node's parent so that it behaves like other browsers.
|
|
|
1263 * @method getTarget
|
|
|
1264 * @param {Event} ev the event
|
|
|
1265 * @param {boolean} resolveTextNode when set to true the target's
|
|
|
1266 * parent will be returned if the target is a
|
|
|
1267 * text node. @deprecated, the text node is
|
|
|
1268 * now resolved automatically
|
|
|
1269 * @return {HTMLElement} the event's target
|
|
|
1270 * @static
|
|
|
1271 */
|
|
|
1272 getTarget: function(ev, resolveTextNode) {
|
|
|
1273 var t = ev.target || ev.srcElement;
|
|
|
1274 return this.resolveTextNode(t);
|
|
|
1275 },
|
|
|
1276
|
|
|
1277 /**
|
|
|
1278 * In some cases, some browsers will return a text node inside
|
|
|
1279 * the actual element that was targeted. This normalizes the
|
|
|
1280 * return value for getTarget and getRelatedTarget.
|
|
|
1281 * @method resolveTextNode
|
|
|
1282 * @param {HTMLElement} node node to resolve
|
|
|
1283 * @return {HTMLElement} the normized node
|
|
|
1284 * @static
|
|
|
1285 */
|
|
|
1286 resolveTextNode: function(n) {
|
|
|
1287 try {
|
|
|
1288 if (n && 3 == n.nodeType) {
|
|
|
1289 return n.parentNode;
|
|
|
1290 }
|
|
|
1291 } catch(e) { }
|
|
|
1292
|
|
|
1293 return n;
|
|
|
1294 },
|
|
|
1295
|
|
|
1296 /**
|
|
|
1297 * Returns the event's pageX
|
|
|
1298 * @method getPageX
|
|
|
1299 * @param {Event} ev the event
|
|
|
1300 * @return {int} the event's pageX
|
|
|
1301 * @static
|
|
|
1302 */
|
|
|
1303 getPageX: function(ev) {
|
|
|
1304 var x = ev.pageX;
|
|
|
1305 if (!x && 0 !== x) {
|
|
|
1306 x = ev.clientX || 0;
|
|
|
1307
|
|
|
1308 if ( this.isIE ) {
|
|
|
1309 x += this._getScrollLeft();
|
|
|
1310 }
|
|
|
1311 }
|
|
|
1312
|
|
|
1313 return x;
|
|
|
1314 },
|
|
|
1315
|
|
|
1316 /**
|
|
|
1317 * Returns the event's pageY
|
|
|
1318 * @method getPageY
|
|
|
1319 * @param {Event} ev the event
|
|
|
1320 * @return {int} the event's pageY
|
|
|
1321 * @static
|
|
|
1322 */
|
|
|
1323 getPageY: function(ev) {
|
|
|
1324 var y = ev.pageY;
|
|
|
1325 if (!y && 0 !== y) {
|
|
|
1326 y = ev.clientY || 0;
|
|
|
1327
|
|
|
1328 if ( this.isIE ) {
|
|
|
1329 y += this._getScrollTop();
|
|
|
1330 }
|
|
|
1331 }
|
|
|
1332
|
|
|
1333
|
|
|
1334 return y;
|
|
|
1335 },
|
|
|
1336
|
|
|
1337 /**
|
|
|
1338 * Returns the pageX and pageY properties as an indexed array.
|
|
|
1339 * @method getXY
|
|
|
1340 * @param {Event} ev the event
|
|
|
1341 * @return {[x, y]} the pageX and pageY properties of the event
|
|
|
1342 * @static
|
|
|
1343 */
|
|
|
1344 getXY: function(ev) {
|
|
|
1345 return [this.getPageX(ev), this.getPageY(ev)];
|
|
|
1346 },
|
|
|
1347
|
|
|
1348 /**
|
|
|
1349 * Returns the event's related target
|
|
|
1350 * @method getRelatedTarget
|
|
|
1351 * @param {Event} ev the event
|
|
|
1352 * @return {HTMLElement} the event's relatedTarget
|
|
|
1353 * @static
|
|
|
1354 */
|
|
|
1355 getRelatedTarget: function(ev) {
|
|
|
1356 var t = ev.relatedTarget;
|
|
|
1357 if (!t) {
|
|
|
1358 if (ev.type == "mouseout") {
|
|
|
1359 t = ev.toElement;
|
|
|
1360 } else if (ev.type == "mouseover") {
|
|
|
1361 t = ev.fromElement;
|
|
|
1362 }
|
|
|
1363 }
|
|
|
1364
|
|
|
1365 return this.resolveTextNode(t);
|
|
|
1366 },
|
|
|
1367
|
|
|
1368 /**
|
|
|
1369 * Returns the time of the event. If the time is not included, the
|
|
|
1370 * event is modified using the current time.
|
|
|
1371 * @method getTime
|
|
|
1372 * @param {Event} ev the event
|
|
|
1373 * @return {Date} the time of the event
|
|
|
1374 * @static
|
|
|
1375 */
|
|
|
1376 getTime: function(ev) {
|
|
|
1377 if (!ev.time) {
|
|
|
1378 var t = new Date().getTime();
|
|
|
1379 try {
|
|
|
1380 ev.time = t;
|
|
|
1381 } catch(ex) {
|
|
|
1382 this.lastError = ex;
|
|
|
1383 return t;
|
|
|
1384 }
|
|
|
1385 }
|
|
|
1386
|
|
|
1387 return ev.time;
|
|
|
1388 },
|
|
|
1389
|
|
|
1390 /**
|
|
|
1391 * Convenience method for stopPropagation + preventDefault
|
|
|
1392 * @method stopEvent
|
|
|
1393 * @param {Event} ev the event
|
|
|
1394 * @static
|
|
|
1395 */
|
|
|
1396 stopEvent: function(ev) {
|
|
|
1397 this.stopPropagation(ev);
|
|
|
1398 this.preventDefault(ev);
|
|
|
1399 },
|
|
|
1400
|
|
|
1401 /**
|
|
|
1402 * Stops event propagation
|
|
|
1403 * @method stopPropagation
|
|
|
1404 * @param {Event} ev the event
|
|
|
1405 * @static
|
|
|
1406 */
|
|
|
1407 stopPropagation: function(ev) {
|
|
|
1408 if (ev.stopPropagation) {
|
|
|
1409 ev.stopPropagation();
|
|
|
1410 } else {
|
|
|
1411 ev.cancelBubble = true;
|
|
|
1412 }
|
|
|
1413 },
|
|
|
1414
|
|
|
1415 /**
|
|
|
1416 * Prevents the default behavior of the event
|
|
|
1417 * @method preventDefault
|
|
|
1418 * @param {Event} ev the event
|
|
|
1419 * @static
|
|
|
1420 */
|
|
|
1421 preventDefault: function(ev) {
|
|
|
1422 if (ev.preventDefault) {
|
|
|
1423 ev.preventDefault();
|
|
|
1424 } else {
|
|
|
1425 ev.returnValue = false;
|
|
|
1426 }
|
|
|
1427 },
|
|
|
1428
|
|
|
1429 /**
|
|
|
1430 * Finds the event in the window object, the caller's arguments, or
|
|
|
1431 * in the arguments of another method in the callstack. This is
|
|
|
1432 * executed automatically for events registered through the event
|
|
|
1433 * manager, so the implementer should not normally need to execute
|
|
|
1434 * this function at all.
|
|
|
1435 * @method getEvent
|
|
|
1436 * @param {Event} e the event parameter from the handler
|
|
|
1437 * @param {HTMLElement} boundEl the element the listener is attached to
|
|
|
1438 * @return {Event} the event
|
|
|
1439 * @static
|
|
|
1440 */
|
|
|
1441 getEvent: function(e, boundEl) {
|
|
|
1442 var ev = e || window.event;
|
|
|
1443
|
|
|
1444 if (!ev) {
|
|
|
1445 var c = this.getEvent.caller;
|
|
|
1446 while (c) {
|
|
|
1447 ev = c.arguments[0];
|
|
|
1448 if (ev && Event == ev.constructor) {
|
|
|
1449 break;
|
|
|
1450 }
|
|
|
1451 c = c.caller;
|
|
|
1452 }
|
|
|
1453 }
|
|
|
1454
|
|
|
1455 return ev;
|
|
|
1456 },
|
|
|
1457
|
|
|
1458 /**
|
|
|
1459 * Returns the charcode for an event
|
|
|
1460 * @method getCharCode
|
|
|
1461 * @param {Event} ev the event
|
|
|
1462 * @return {int} the event's charCode
|
|
|
1463 * @static
|
|
|
1464 */
|
|
|
1465 getCharCode: function(ev) {
|
|
|
1466 var code = ev.keyCode || ev.charCode || 0;
|
|
|
1467
|
|
|
1468 // webkit key normalization
|
|
|
1469 if (YAHOO.env.ua.webkit && (code in webkitKeymap)) {
|
|
|
1470 code = webkitKeymap[code];
|
|
|
1471 }
|
|
|
1472 return code;
|
|
|
1473 },
|
|
|
1474
|
|
|
1475 /**
|
|
|
1476 * Locating the saved event handler data by function ref
|
|
|
1477 *
|
|
|
1478 * @method _getCacheIndex
|
|
|
1479 * @static
|
|
|
1480 * @private
|
|
|
1481 */
|
|
|
1482 _getCacheIndex: function(a, el, sType, fn) {
|
|
|
1483 for (var i=0, l=a.length; i<l; i=i+1) {
|
|
|
1484 var li = a[i];
|
|
|
1485 if ( li &&
|
|
|
1486 li[this.FN] == fn &&
|
|
|
1487 li[this.EL] == el &&
|
|
|
1488 li[this.TYPE] == sType ) {
|
|
|
1489 return i;
|
|
|
1490 }
|
|
|
1491 }
|
|
|
1492
|
|
|
1493 return -1;
|
|
|
1494 },
|
|
|
1495
|
|
|
1496 /**
|
|
|
1497 * Generates an unique ID for the element if it does not already
|
|
|
1498 * have one.
|
|
|
1499 * @method generateId
|
|
|
1500 * @param el the element to create the id for
|
|
|
1501 * @return {string} the resulting id of the element
|
|
|
1502 * @static
|
|
|
1503 */
|
|
|
1504 generateId: function(el) {
|
|
|
1505 var id = el.id;
|
|
|
1506
|
|
|
1507 if (!id) {
|
|
|
1508 id = "yuievtautoid-" + counter;
|
|
|
1509 ++counter;
|
|
|
1510 el.id = id;
|
|
|
1511 }
|
|
|
1512
|
|
|
1513 return id;
|
|
|
1514 },
|
|
|
1515
|
|
|
1516
|
|
|
1517 /**
|
|
|
1518 * We want to be able to use getElementsByTagName as a collection
|
|
|
1519 * to attach a group of events to. Unfortunately, different
|
|
|
1520 * browsers return different types of collections. This function
|
|
|
1521 * tests to determine if the object is array-like. It will also
|
|
|
1522 * fail if the object is an array, but is empty.
|
|
|
1523 * @method _isValidCollection
|
|
|
1524 * @param o the object to test
|
|
|
1525 * @return {boolean} true if the object is array-like and populated
|
|
|
1526 * @static
|
|
|
1527 * @private
|
|
|
1528 */
|
|
|
1529 _isValidCollection: function(o) {
|
|
|
1530 try {
|
|
|
1531 return ( o && // o is something
|
|
|
1532 typeof o !== "string" && // o is not a string
|
|
|
1533 o.length && // o is indexed
|
|
|
1534 !o.tagName && // o is not an HTML element
|
|
|
1535 !o.alert && // o is not a window
|
|
|
1536 typeof o[0] !== "undefined" );
|
|
|
1537 } catch(ex) {
|
|
|
1538 YAHOO.log("node access error (xframe?)", "warn");
|
|
|
1539 return false;
|
|
|
1540 }
|
|
|
1541
|
|
|
1542 },
|
|
|
1543
|
|
|
1544 /**
|
|
|
1545 * @private
|
|
|
1546 * @property elCache
|
|
|
1547 * DOM element cache
|
|
|
1548 * @static
|
|
|
1549 * @deprecated Elements are not cached due to issues that arise when
|
|
|
1550 * elements are removed and re-added
|
|
|
1551 */
|
|
|
1552 elCache: {},
|
|
|
1553
|
|
|
1554 /**
|
|
|
1555 * We cache elements bound by id because when the unload event
|
|
|
1556 * fires, we can no longer use document.getElementById
|
|
|
1557 * @method getEl
|
|
|
1558 * @static
|
|
|
1559 * @private
|
|
|
1560 * @deprecated Elements are not cached any longer
|
|
|
1561 */
|
|
|
1562 getEl: function(id) {
|
|
|
1563 return (typeof id === "string") ? document.getElementById(id) : id;
|
|
|
1564 },
|
|
|
1565
|
|
|
1566 /**
|
|
|
1567 * Clears the element cache
|
|
|
1568 * @deprecated Elements are not cached any longer
|
|
|
1569 * @method clearCache
|
|
|
1570 * @static
|
|
|
1571 * @private
|
|
|
1572 */
|
|
|
1573 clearCache: function() { },
|
|
|
1574
|
|
|
1575 /**
|
|
|
1576 * Custom event the fires when the dom is initially usable
|
|
|
1577 * @event DOMReadyEvent
|
|
|
1578 */
|
|
|
1579 DOMReadyEvent: new YAHOO.util.CustomEvent("DOMReady", YAHOO, 0, 0, 1),
|
|
|
1580
|
|
|
1581 /**
|
|
|
1582 * hook up any deferred listeners
|
|
|
1583 * @method _load
|
|
|
1584 * @static
|
|
|
1585 * @private
|
|
|
1586 */
|
|
|
1587 _load: function(e) {
|
|
|
1588
|
|
|
1589 if (!loadComplete) {
|
|
|
1590 loadComplete = true;
|
|
|
1591 var EU = YAHOO.util.Event;
|
|
|
1592
|
|
|
1593 // Just in case DOMReady did not go off for some reason
|
|
|
1594 EU._ready();
|
|
|
1595
|
|
|
1596 // Available elements may not have been detected before the
|
|
|
1597 // window load event fires. Try to find them now so that the
|
|
|
1598 // the user is more likely to get the onAvailable notifications
|
|
|
1599 // before the window load notification
|
|
|
1600 EU._tryPreloadAttach();
|
|
|
1601
|
|
|
1602 }
|
|
|
1603 },
|
|
|
1604
|
|
|
1605 /**
|
|
|
1606 * Fires the DOMReady event listeners the first time the document is
|
|
|
1607 * usable.
|
|
|
1608 * @method _ready
|
|
|
1609 * @static
|
|
|
1610 * @private
|
|
|
1611 */
|
|
|
1612 _ready: function(e) {
|
|
|
1613 var EU = YAHOO.util.Event;
|
|
|
1614 if (!EU.DOMReady) {
|
|
|
1615 EU.DOMReady=true;
|
|
|
1616
|
|
|
1617 // Fire the content ready custom event
|
|
|
1618 EU.DOMReadyEvent.fire();
|
|
|
1619
|
|
|
1620 // Remove the DOMContentLoaded (FF/Opera)
|
|
|
1621 EU._simpleRemove(document, "DOMContentLoaded", EU._ready);
|
|
|
1622 }
|
|
|
1623 },
|
|
|
1624
|
|
|
1625 /**
|
|
|
1626 * Polling function that runs before the onload event fires,
|
|
|
1627 * attempting to attach to DOM Nodes as soon as they are
|
|
|
1628 * available
|
|
|
1629 * @method _tryPreloadAttach
|
|
|
1630 * @static
|
|
|
1631 * @private
|
|
|
1632 */
|
|
|
1633 _tryPreloadAttach: function() {
|
|
|
1634
|
|
|
1635 if (onAvailStack.length === 0) {
|
|
|
1636 retryCount = 0;
|
|
|
1637 if (this._interval) {
|
|
|
1638 // clearInterval(this._interval);
|
|
|
1639 this._interval.cancel();
|
|
|
1640 this._interval = null;
|
|
|
1641 }
|
|
|
1642 return;
|
|
|
1643 }
|
|
|
1644
|
|
|
1645 if (this.locked) {
|
|
|
1646 return;
|
|
|
1647 }
|
|
|
1648
|
|
|
1649 if (this.isIE) {
|
|
|
1650 // Hold off if DOMReady has not fired and check current
|
|
|
1651 // readyState to protect against the IE operation aborted
|
|
|
1652 // issue.
|
|
|
1653 if (!this.DOMReady) {
|
|
|
1654 this.startInterval();
|
|
|
1655 return;
|
|
|
1656 }
|
|
|
1657 }
|
|
|
1658
|
|
|
1659 this.locked = true;
|
|
|
1660
|
|
|
1661 // this.logger.debug("tryPreloadAttach");
|
|
|
1662
|
|
|
1663 // keep trying until after the page is loaded. We need to
|
|
|
1664 // check the page load state prior to trying to bind the
|
|
|
1665 // elements so that we can be certain all elements have been
|
|
|
1666 // tested appropriately
|
|
|
1667 var tryAgain = !loadComplete;
|
|
|
1668 if (!tryAgain) {
|
|
|
1669 tryAgain = (retryCount > 0 && onAvailStack.length > 0);
|
|
|
1670 }
|
|
|
1671
|
|
|
1672 // onAvailable
|
|
|
1673 var notAvail = [];
|
|
|
1674
|
|
|
1675 var executeItem = function (el, item) {
|
|
|
1676 var context = el;
|
|
|
1677 if (item.overrideContext) {
|
|
|
1678 if (item.overrideContext === true) {
|
|
|
1679 context = item.obj;
|
|
|
1680 } else {
|
|
|
1681 context = item.overrideContext;
|
|
|
1682 }
|
|
|
1683 }
|
|
|
1684 item.fn.call(context, item.obj);
|
|
|
1685 };
|
|
|
1686
|
|
|
1687 var i, len, item, el, ready=[];
|
|
|
1688
|
|
|
1689 // onAvailable onContentReady
|
|
|
1690 for (i=0, len=onAvailStack.length; i<len; i=i+1) {
|
|
|
1691 item = onAvailStack[i];
|
|
|
1692 if (item) {
|
|
|
1693 el = this.getEl(item.id);
|
|
|
1694 if (el) {
|
|
|
1695 if (item.checkReady) {
|
|
|
1696 if (loadComplete || el.nextSibling || !tryAgain) {
|
|
|
1697 ready.push(item);
|
|
|
1698 onAvailStack[i] = null;
|
|
|
1699 }
|
|
|
1700 } else {
|
|
|
1701 executeItem(el, item);
|
|
|
1702 onAvailStack[i] = null;
|
|
|
1703 }
|
|
|
1704 } else {
|
|
|
1705 notAvail.push(item);
|
|
|
1706 }
|
|
|
1707 }
|
|
|
1708 }
|
|
|
1709
|
|
|
1710 // make sure onContentReady fires after onAvailable
|
|
|
1711 for (i=0, len=ready.length; i<len; i=i+1) {
|
|
|
1712 item = ready[i];
|
|
|
1713 executeItem(this.getEl(item.id), item);
|
|
|
1714 }
|
|
|
1715
|
|
|
1716
|
|
|
1717 retryCount--;
|
|
|
1718
|
|
|
1719 if (tryAgain) {
|
|
|
1720 for (i=onAvailStack.length-1; i>-1; i--) {
|
|
|
1721 item = onAvailStack[i];
|
|
|
1722 if (!item || !item.id) {
|
|
|
1723 onAvailStack.splice(i, 1);
|
|
|
1724 }
|
|
|
1725 }
|
|
|
1726
|
|
|
1727 this.startInterval();
|
|
|
1728 } else {
|
|
|
1729 if (this._interval) {
|
|
|
1730 // clearInterval(this._interval);
|
|
|
1731 this._interval.cancel();
|
|
|
1732 this._interval = null;
|
|
|
1733 }
|
|
|
1734 }
|
|
|
1735
|
|
|
1736 this.locked = false;
|
|
|
1737
|
|
|
1738 },
|
|
|
1739
|
|
|
1740 /**
|
|
|
1741 * Removes all listeners attached to the given element via addListener.
|
|
|
1742 * Optionally, the node's children can also be purged.
|
|
|
1743 * Optionally, you can specify a specific type of event to remove.
|
|
|
1744 * @method purgeElement
|
|
|
1745 * @param {HTMLElement} el the element to purge
|
|
|
1746 * @param {boolean} recurse recursively purge this element's children
|
|
|
1747 * as well. Use with caution.
|
|
|
1748 * @param {string} sType optional type of listener to purge. If
|
|
|
1749 * left out, all listeners will be removed
|
|
|
1750 * @static
|
|
|
1751 */
|
|
|
1752 purgeElement: function(el, recurse, sType) {
|
|
|
1753 var oEl = (YAHOO.lang.isString(el)) ? this.getEl(el) : el;
|
|
|
1754 var elListeners = this.getListeners(oEl, sType), i, len;
|
|
|
1755 if (elListeners) {
|
|
|
1756 for (i=elListeners.length-1; i>-1; i--) {
|
|
|
1757 var l = elListeners[i];
|
|
|
1758 this.removeListener(oEl, l.type, l.fn);
|
|
|
1759 }
|
|
|
1760 }
|
|
|
1761
|
|
|
1762 if (recurse && oEl && oEl.childNodes) {
|
|
|
1763 for (i=0,len=oEl.childNodes.length; i<len ; ++i) {
|
|
|
1764 this.purgeElement(oEl.childNodes[i], recurse, sType);
|
|
|
1765 }
|
|
|
1766 }
|
|
|
1767 },
|
|
|
1768
|
|
|
1769 /**
|
|
|
1770 * Returns all listeners attached to the given element via addListener.
|
|
|
1771 * Optionally, you can specify a specific type of event to return.
|
|
|
1772 * @method getListeners
|
|
|
1773 * @param el {HTMLElement|string} the element or element id to inspect
|
|
|
1774 * @param sType {string} optional type of listener to return. If
|
|
|
1775 * left out, all listeners will be returned
|
|
|
1776 * @return {Object} the listener. Contains the following fields:
|
|
|
1777 * type: (string) the type of event
|
|
|
1778 * fn: (function) the callback supplied to addListener
|
|
|
1779 * obj: (object) the custom object supplied to addListener
|
|
|
1780 * adjust: (boolean|object) whether or not to adjust the default context
|
|
|
1781 * scope: (boolean) the derived context based on the adjust parameter
|
|
|
1782 * index: (int) its position in the Event util listener cache
|
|
|
1783 * @static
|
|
|
1784 */
|
|
|
1785 getListeners: function(el, sType) {
|
|
|
1786 var results=[], searchLists;
|
|
|
1787 if (!sType) {
|
|
|
1788 searchLists = [listeners, unloadListeners];
|
|
|
1789 } else if (sType === "unload") {
|
|
|
1790 searchLists = [unloadListeners];
|
|
|
1791 } else {
|
|
|
1792 sType = this._getType(sType);
|
|
|
1793 searchLists = [listeners];
|
|
|
1794 }
|
|
|
1795
|
|
|
1796 var oEl = (YAHOO.lang.isString(el)) ? this.getEl(el) : el;
|
|
|
1797
|
|
|
1798 for (var j=0;j<searchLists.length; j=j+1) {
|
|
|
1799 var searchList = searchLists[j];
|
|
|
1800 if (searchList) {
|
|
|
1801 for (var i=0,len=searchList.length; i<len ; ++i) {
|
|
|
1802 var l = searchList[i];
|
|
|
1803 if ( l && l[this.EL] === oEl &&
|
|
|
1804 (!sType || sType === l[this.TYPE]) ) {
|
|
|
1805 results.push({
|
|
|
1806 type: l[this.TYPE],
|
|
|
1807 fn: l[this.FN],
|
|
|
1808 obj: l[this.OBJ],
|
|
|
1809 adjust: l[this.OVERRIDE],
|
|
|
1810 scope: l[this.ADJ_SCOPE],
|
|
|
1811 index: i
|
|
|
1812 });
|
|
|
1813 }
|
|
|
1814 }
|
|
|
1815 }
|
|
|
1816 }
|
|
|
1817
|
|
|
1818 return (results.length) ? results : null;
|
|
|
1819 },
|
|
|
1820
|
|
|
1821 /**
|
|
|
1822 * Removes all listeners registered by pe.event. Called
|
|
|
1823 * automatically during the unload event.
|
|
|
1824 * @method _unload
|
|
|
1825 * @static
|
|
|
1826 * @private
|
|
|
1827 */
|
|
|
1828 _unload: function(e) {
|
|
|
1829
|
|
|
1830 var EU = YAHOO.util.Event, i, j, l, len, index,
|
|
|
1831 ul = unloadListeners.slice(), context;
|
|
|
1832
|
|
|
1833 // execute and clear stored unload listeners
|
|
|
1834 for (i=0, len=unloadListeners.length; i<len; ++i) {
|
|
|
1835 l = ul[i];
|
|
|
1836 if (l) {
|
|
|
1837 context = window;
|
|
|
1838 if (l[EU.ADJ_SCOPE]) {
|
|
|
1839 if (l[EU.ADJ_SCOPE] === true) {
|
|
|
1840 context = l[EU.UNLOAD_OBJ];
|
|
|
1841 } else {
|
|
|
1842 context = l[EU.ADJ_SCOPE];
|
|
|
1843 }
|
|
|
1844 }
|
|
|
1845 l[EU.FN].call(context, EU.getEvent(e, l[EU.EL]), l[EU.UNLOAD_OBJ] );
|
|
|
1846 ul[i] = null;
|
|
|
1847 }
|
|
|
1848 }
|
|
|
1849
|
|
|
1850 l = null;
|
|
|
1851 context = null;
|
|
|
1852 unloadListeners = null;
|
|
|
1853
|
|
|
1854 // Remove listeners to handle IE memory leaks
|
|
|
1855 // 2.5.0 listeners are removed for all browsers again. FireFox preserves
|
|
|
1856 // at least some listeners between page refreshes, potentially causing
|
|
|
1857 // errors during page load (mouseover listeners firing before they
|
|
|
1858 // should if the user moves the mouse at the correct moment).
|
|
|
1859 if (listeners) {
|
|
|
1860 for (j=listeners.length-1; j>-1; j--) {
|
|
|
1861 l = listeners[j];
|
|
|
1862 if (l) {
|
|
|
1863 EU.removeListener(l[EU.EL], l[EU.TYPE], l[EU.FN], j);
|
|
|
1864 }
|
|
|
1865 }
|
|
|
1866 l=null;
|
|
|
1867 }
|
|
|
1868
|
|
|
1869 EU._simpleRemove(window, "unload", EU._unload);
|
|
|
1870
|
|
|
1871 },
|
|
|
1872
|
|
|
1873 /**
|
|
|
1874 * Returns scrollLeft
|
|
|
1875 * @method _getScrollLeft
|
|
|
1876 * @static
|
|
|
1877 * @private
|
|
|
1878 */
|
|
|
1879 _getScrollLeft: function() {
|
|
|
1880 return this._getScroll()[1];
|
|
|
1881 },
|
|
|
1882
|
|
|
1883 /**
|
|
|
1884 * Returns scrollTop
|
|
|
1885 * @method _getScrollTop
|
|
|
1886 * @static
|
|
|
1887 * @private
|
|
|
1888 */
|
|
|
1889 _getScrollTop: function() {
|
|
|
1890 return this._getScroll()[0];
|
|
|
1891 },
|
|
|
1892
|
|
|
1893 /**
|
|
|
1894 * Returns the scrollTop and scrollLeft. Used to calculate the
|
|
|
1895 * pageX and pageY in Internet Explorer
|
|
|
1896 * @method _getScroll
|
|
|
1897 * @static
|
|
|
1898 * @private
|
|
|
1899 */
|
|
|
1900 _getScroll: function() {
|
|
|
1901 var dd = document.documentElement, db = document.body;
|
|
|
1902 if (dd && (dd.scrollTop || dd.scrollLeft)) {
|
|
|
1903 return [dd.scrollTop, dd.scrollLeft];
|
|
|
1904 } else if (db) {
|
|
|
1905 return [db.scrollTop, db.scrollLeft];
|
|
|
1906 } else {
|
|
|
1907 return [0, 0];
|
|
|
1908 }
|
|
|
1909 },
|
|
|
1910
|
|
|
1911 /**
|
|
|
1912 * Used by old versions of CustomEvent, restored for backwards
|
|
|
1913 * compatibility
|
|
|
1914 * @method regCE
|
|
|
1915 * @private
|
|
|
1916 * @static
|
|
|
1917 * @deprecated still here for backwards compatibility
|
|
|
1918 */
|
|
|
1919 regCE: function() {},
|
|
|
1920
|
|
|
1921 /**
|
|
|
1922 * Adds a DOM event directly without the caching, cleanup, context adj, etc
|
|
|
1923 *
|
|
|
1924 * @method _simpleAdd
|
|
|
1925 * @param {HTMLElement} el the element to bind the handler to
|
|
|
1926 * @param {string} sType the type of event handler
|
|
|
1927 * @param {function} fn the callback to invoke
|
|
|
1928 * @param {boolen} capture capture or bubble phase
|
|
|
1929 * @static
|
|
|
1930 * @private
|
|
|
1931 */
|
|
|
1932 _simpleAdd: function () {
|
|
|
1933 if (window.addEventListener) {
|
|
|
1934 return function(el, sType, fn, capture) {
|
|
|
1935 el.addEventListener(sType, fn, (capture));
|
|
|
1936 };
|
|
|
1937 } else if (window.attachEvent) {
|
|
|
1938 return function(el, sType, fn, capture) {
|
|
|
1939 el.attachEvent("on" + sType, fn);
|
|
|
1940 };
|
|
|
1941 } else {
|
|
|
1942 return function(){};
|
|
|
1943 }
|
|
|
1944 }(),
|
|
|
1945
|
|
|
1946 /**
|
|
|
1947 * Basic remove listener
|
|
|
1948 *
|
|
|
1949 * @method _simpleRemove
|
|
|
1950 * @param {HTMLElement} el the element to bind the handler to
|
|
|
1951 * @param {string} sType the type of event handler
|
|
|
1952 * @param {function} fn the callback to invoke
|
|
|
1953 * @param {boolen} capture capture or bubble phase
|
|
|
1954 * @static
|
|
|
1955 * @private
|
|
|
1956 */
|
|
|
1957 _simpleRemove: function() {
|
|
|
1958 if (window.removeEventListener) {
|
|
|
1959 return function (el, sType, fn, capture) {
|
|
|
1960 el.removeEventListener(sType, fn, (capture));
|
|
|
1961 };
|
|
|
1962 } else if (window.detachEvent) {
|
|
|
1963 return function (el, sType, fn) {
|
|
|
1964 el.detachEvent("on" + sType, fn);
|
|
|
1965 };
|
|
|
1966 } else {
|
|
|
1967 return function(){};
|
|
|
1968 }
|
|
|
1969 }()
|
|
|
1970 };
|
|
|
1971
|
|
|
1972 }();
|
|
|
1973
|
|
|
1974 (function() {
|
|
|
1975 var EU = YAHOO.util.Event;
|
|
|
1976
|
|
|
1977 /**
|
|
|
1978 * YAHOO.util.Event.on is an alias for addListener
|
|
|
1979 * @method on
|
|
|
1980 * @see addListener
|
|
|
1981 * @static
|
|
|
1982 */
|
|
|
1983 EU.on = EU.addListener;
|
|
|
1984
|
|
|
1985 /**
|
|
|
1986 * YAHOO.util.Event.onFocus is an alias for addFocusListener
|
|
|
1987 * @method onFocus
|
|
|
1988 * @see addFocusListener
|
|
|
1989 * @static
|
|
|
1990 * @deprecated use YAHOO.util.Event.on and specify "focusin" as the event type.
|
|
|
1991 */
|
|
|
1992 EU.onFocus = EU.addFocusListener;
|
|
|
1993
|
|
|
1994 /**
|
|
|
1995 * YAHOO.util.Event.onBlur is an alias for addBlurListener
|
|
|
1996 * @method onBlur
|
|
|
1997 * @see addBlurListener
|
|
|
1998 * @static
|
|
|
1999 * @deprecated use YAHOO.util.Event.on and specify "focusout" as the event type.
|
|
|
2000 */
|
|
|
2001 EU.onBlur = EU.addBlurListener;
|
|
|
2002
|
|
|
2003 /*! DOMReady: based on work by: Dean Edwards/John Resig/Matthias Miller/Diego Perini */
|
|
|
2004
|
|
|
2005 // Internet Explorer: use the readyState of a defered script.
|
|
|
2006 // This isolates what appears to be a safe moment to manipulate
|
|
|
2007 // the DOM prior to when the document's readyState suggests
|
|
|
2008 // it is safe to do so.
|
|
|
2009 if (EU.isIE) {
|
|
|
2010 if (self !== self.top) {
|
|
|
2011 document.onreadystatechange = function() {
|
|
|
2012 if (document.readyState == 'complete') {
|
|
|
2013 document.onreadystatechange = null;
|
|
|
2014 EU._ready();
|
|
|
2015 }
|
|
|
2016 };
|
|
|
2017 } else {
|
|
|
2018
|
|
|
2019 // Process onAvailable/onContentReady items when the
|
|
|
2020 // DOM is ready.
|
|
|
2021 YAHOO.util.Event.onDOMReady(
|
|
|
2022 YAHOO.util.Event._tryPreloadAttach,
|
|
|
2023 YAHOO.util.Event, true);
|
|
|
2024
|
|
|
2025 var n = document.createElement('p');
|
|
|
2026
|
|
|
2027 EU._dri = setInterval(function() {
|
|
|
2028 try {
|
|
|
2029 // throws an error if doc is not ready
|
|
|
2030 n.doScroll('left');
|
|
|
2031 clearInterval(EU._dri);
|
|
|
2032 EU._dri = null;
|
|
|
2033 EU._ready();
|
|
|
2034 n = null;
|
|
|
2035 } catch (ex) {
|
|
|
2036 }
|
|
|
2037 }, EU.POLL_INTERVAL);
|
|
|
2038 }
|
|
|
2039
|
|
|
2040 // The document's readyState in Safari currently will
|
|
|
2041 // change to loaded/complete before images are loaded.
|
|
|
2042 } else if (EU.webkit && EU.webkit < 525) {
|
|
|
2043
|
|
|
2044 EU._dri = setInterval(function() {
|
|
|
2045 var rs=document.readyState;
|
|
|
2046 if ("loaded" == rs || "complete" == rs) {
|
|
|
2047 clearInterval(EU._dri);
|
|
|
2048 EU._dri = null;
|
|
|
2049 EU._ready();
|
|
|
2050 }
|
|
|
2051 }, EU.POLL_INTERVAL);
|
|
|
2052
|
|
|
2053 // FireFox and Opera: These browsers provide a event for this
|
|
|
2054 // moment. The latest WebKit releases now support this event.
|
|
|
2055 } else {
|
|
|
2056
|
|
|
2057 EU._simpleAdd(document, "DOMContentLoaded", EU._ready);
|
|
|
2058
|
|
|
2059 }
|
|
|
2060 /////////////////////////////////////////////////////////////
|
|
|
2061
|
|
|
2062
|
|
|
2063 EU._simpleAdd(window, "load", EU._load);
|
|
|
2064 EU._simpleAdd(window, "unload", EU._unload);
|
|
|
2065 EU._tryPreloadAttach();
|
|
|
2066 })();
|
|
|
2067
|
|
|
2068 }
|
|
|
2069 /**
|
|
|
2070 * EventProvider is designed to be used with YAHOO.augment to wrap
|
|
|
2071 * CustomEvents in an interface that allows events to be subscribed to
|
|
|
2072 * and fired by name. This makes it possible for implementing code to
|
|
|
2073 * subscribe to an event that either has not been created yet, or will
|
|
|
2074 * not be created at all.
|
|
|
2075 *
|
|
|
2076 * @Class EventProvider
|
|
|
2077 */
|
|
|
2078 YAHOO.util.EventProvider = function() { };
|
|
|
2079
|
|
|
2080 YAHOO.util.EventProvider.prototype = {
|
|
|
2081
|
|
|
2082 /**
|
|
|
2083 * Private storage of custom events
|
|
|
2084 * @property __yui_events
|
|
|
2085 * @type Object[]
|
|
|
2086 * @private
|
|
|
2087 */
|
|
|
2088 __yui_events: null,
|
|
|
2089
|
|
|
2090 /**
|
|
|
2091 * Private storage of custom event subscribers
|
|
|
2092 * @property __yui_subscribers
|
|
|
2093 * @type Object[]
|
|
|
2094 * @private
|
|
|
2095 */
|
|
|
2096 __yui_subscribers: null,
|
|
|
2097
|
|
|
2098 /**
|
|
|
2099 * Subscribe to a CustomEvent by event type
|
|
|
2100 *
|
|
|
2101 * @method subscribe
|
|
|
2102 * @param p_type {string} the type, or name of the event
|
|
|
2103 * @param p_fn {function} the function to exectute when the event fires
|
|
|
2104 * @param p_obj {Object} An object to be passed along when the event
|
|
|
2105 * fires
|
|
|
2106 * @param overrideContext {boolean} If true, the obj passed in becomes the
|
|
|
2107 * execution scope of the listener
|
|
|
2108 */
|
|
|
2109 subscribe: function(p_type, p_fn, p_obj, overrideContext) {
|
|
|
2110
|
|
|
2111 this.__yui_events = this.__yui_events || {};
|
|
|
2112 var ce = this.__yui_events[p_type];
|
|
|
2113
|
|
|
2114 if (ce) {
|
|
|
2115 ce.subscribe(p_fn, p_obj, overrideContext);
|
|
|
2116 } else {
|
|
|
2117 this.__yui_subscribers = this.__yui_subscribers || {};
|
|
|
2118 var subs = this.__yui_subscribers;
|
|
|
2119 if (!subs[p_type]) {
|
|
|
2120 subs[p_type] = [];
|
|
|
2121 }
|
|
|
2122 subs[p_type].push(
|
|
|
2123 { fn: p_fn, obj: p_obj, overrideContext: overrideContext } );
|
|
|
2124 }
|
|
|
2125 },
|
|
|
2126
|
|
|
2127 /**
|
|
|
2128 * Unsubscribes one or more listeners the from the specified event
|
|
|
2129 * @method unsubscribe
|
|
|
2130 * @param p_type {string} The type, or name of the event. If the type
|
|
|
2131 * is not specified, it will attempt to remove
|
|
|
2132 * the listener from all hosted events.
|
|
|
2133 * @param p_fn {Function} The subscribed function to unsubscribe, if not
|
|
|
2134 * supplied, all subscribers will be removed.
|
|
|
2135 * @param p_obj {Object} The custom object passed to subscribe. This is
|
|
|
2136 * optional, but if supplied will be used to
|
|
|
2137 * disambiguate multiple listeners that are the same
|
|
|
2138 * (e.g., you subscribe many object using a function
|
|
|
2139 * that lives on the prototype)
|
|
|
2140 * @return {boolean} true if the subscriber was found and detached.
|
|
|
2141 */
|
|
|
2142 unsubscribe: function(p_type, p_fn, p_obj) {
|
|
|
2143 this.__yui_events = this.__yui_events || {};
|
|
|
2144 var evts = this.__yui_events;
|
|
|
2145 if (p_type) {
|
|
|
2146 var ce = evts[p_type];
|
|
|
2147 if (ce) {
|
|
|
2148 return ce.unsubscribe(p_fn, p_obj);
|
|
|
2149 }
|
|
|
2150 } else {
|
|
|
2151 var ret = true;
|
|
|
2152 for (var i in evts) {
|
|
|
2153 if (YAHOO.lang.hasOwnProperty(evts, i)) {
|
|
|
2154 ret = ret && evts[i].unsubscribe(p_fn, p_obj);
|
|
|
2155 }
|
|
|
2156 }
|
|
|
2157 return ret;
|
|
|
2158 }
|
|
|
2159
|
|
|
2160 return false;
|
|
|
2161 },
|
|
|
2162
|
|
|
2163 /**
|
|
|
2164 * Removes all listeners from the specified event. If the event type
|
|
|
2165 * is not specified, all listeners from all hosted custom events will
|
|
|
2166 * be removed.
|
|
|
2167 * @method unsubscribeAll
|
|
|
2168 * @param p_type {string} The type, or name of the event
|
|
|
2169 */
|
|
|
2170 unsubscribeAll: function(p_type) {
|
|
|
2171 return this.unsubscribe(p_type);
|
|
|
2172 },
|
|
|
2173
|
|
|
2174 /**
|
|
|
2175 * Creates a new custom event of the specified type. If a custom event
|
|
|
2176 * by that name already exists, it will not be re-created. In either
|
|
|
2177 * case the custom event is returned.
|
|
|
2178 *
|
|
|
2179 * @method createEvent
|
|
|
2180 *
|
|
|
2181 * @param p_type {string} the type, or name of the event
|
|
|
2182 * @param p_config {object} optional config params. Valid properties are:
|
|
|
2183 *
|
|
|
2184 * <ul>
|
|
|
2185 * <li>
|
|
|
2186 * scope: defines the default execution scope. If not defined
|
|
|
2187 * the default scope will be this instance.
|
|
|
2188 * </li>
|
|
|
2189 * <li>
|
|
|
2190 * silent: if true, the custom event will not generate log messages.
|
|
|
2191 * This is false by default.
|
|
|
2192 * </li>
|
|
|
2193 * <li>
|
|
|
2194 * fireOnce: if true, the custom event will only notify subscribers
|
|
|
2195 * once regardless of the number of times the event is fired. In
|
|
|
2196 * addition, new subscribers will be executed immediately if the
|
|
|
2197 * event has already fired.
|
|
|
2198 * This is false by default.
|
|
|
2199 * </li>
|
|
|
2200 * <li>
|
|
|
2201 * onSubscribeCallback: specifies a callback to execute when the
|
|
|
2202 * event has a new subscriber. This will fire immediately for
|
|
|
2203 * each queued subscriber if any exist prior to the creation of
|
|
|
2204 * the event.
|
|
|
2205 * </li>
|
|
|
2206 * </ul>
|
|
|
2207 *
|
|
|
2208 * @return {CustomEvent} the custom event
|
|
|
2209 *
|
|
|
2210 */
|
|
|
2211 createEvent: function(p_type, p_config) {
|
|
|
2212
|
|
|
2213 this.__yui_events = this.__yui_events || {};
|
|
|
2214 var opts = p_config || {},
|
|
|
2215 events = this.__yui_events, ce;
|
|
|
2216
|
|
|
2217 if (events[p_type]) {
|
|
|
2218 YAHOO.log("EventProvider createEvent skipped: '"+p_type+"' already exists");
|
|
|
2219 } else {
|
|
|
2220
|
|
|
2221 ce = new YAHOO.util.CustomEvent(p_type, opts.scope || this, opts.silent,
|
|
|
2222 YAHOO.util.CustomEvent.FLAT, opts.fireOnce);
|
|
|
2223
|
|
|
2224 events[p_type] = ce;
|
|
|
2225
|
|
|
2226 if (opts.onSubscribeCallback) {
|
|
|
2227 ce.subscribeEvent.subscribe(opts.onSubscribeCallback);
|
|
|
2228 }
|
|
|
2229
|
|
|
2230 this.__yui_subscribers = this.__yui_subscribers || {};
|
|
|
2231 var qs = this.__yui_subscribers[p_type];
|
|
|
2232
|
|
|
2233 if (qs) {
|
|
|
2234 for (var i=0; i<qs.length; ++i) {
|
|
|
2235 ce.subscribe(qs[i].fn, qs[i].obj, qs[i].overrideContext);
|
|
|
2236 }
|
|
|
2237 }
|
|
|
2238 }
|
|
|
2239
|
|
|
2240 return events[p_type];
|
|
|
2241 },
|
|
|
2242
|
|
|
2243
|
|
|
2244 /**
|
|
|
2245 * Fire a custom event by name. The callback functions will be executed
|
|
|
2246 * from the scope specified when the event was created, and with the
|
|
|
2247 * following parameters:
|
|
|
2248 * <ul>
|
|
|
2249 * <li>The first argument fire() was executed with</li>
|
|
|
2250 * <li>The custom object (if any) that was passed into the subscribe()
|
|
|
2251 * method</li>
|
|
|
2252 * </ul>
|
|
|
2253 * @method fireEvent
|
|
|
2254 * @param p_type {string} the type, or name of the event
|
|
|
2255 * @param arguments {Object*} an arbitrary set of parameters to pass to
|
|
|
2256 * the handler.
|
|
|
2257 * @return {boolean} the return value from CustomEvent.fire
|
|
|
2258 *
|
|
|
2259 */
|
|
|
2260 fireEvent: function(p_type) {
|
|
|
2261
|
|
|
2262 this.__yui_events = this.__yui_events || {};
|
|
|
2263 var ce = this.__yui_events[p_type];
|
|
|
2264
|
|
|
2265 if (!ce) {
|
|
|
2266 YAHOO.log(p_type + "event fired before it was created.");
|
|
|
2267 return null;
|
|
|
2268 }
|
|
|
2269
|
|
|
2270 var args = [];
|
|
|
2271 for (var i=1; i<arguments.length; ++i) {
|
|
|
2272 args.push(arguments[i]);
|
|
|
2273 }
|
|
|
2274 return ce.fire.apply(ce, args);
|
|
|
2275 },
|
|
|
2276
|
|
|
2277 /**
|
|
|
2278 * Returns true if the custom event of the provided type has been created
|
|
|
2279 * with createEvent.
|
|
|
2280 * @method hasEvent
|
|
|
2281 * @param type {string} the type, or name of the event
|
|
|
2282 */
|
|
|
2283 hasEvent: function(type) {
|
|
|
2284 if (this.__yui_events) {
|
|
|
2285 if (this.__yui_events[type]) {
|
|
|
2286 return true;
|
|
|
2287 }
|
|
|
2288 }
|
|
|
2289 return false;
|
|
|
2290 }
|
|
|
2291
|
|
|
2292 };
|
|
|
2293
|
|
|
2294 (function() {
|
|
|
2295
|
|
|
2296 var Event = YAHOO.util.Event, Lang = YAHOO.lang;
|
|
|
2297
|
|
|
2298 /**
|
|
|
2299 * KeyListener is a utility that provides an easy interface for listening for
|
|
|
2300 * keydown/keyup events fired against DOM elements.
|
|
|
2301 * @namespace YAHOO.util
|
|
|
2302 * @class KeyListener
|
|
|
2303 * @constructor
|
|
|
2304 * @param {HTMLElement} attachTo The element or element ID to which the key
|
|
|
2305 * event should be attached
|
|
|
2306 * @param {String} attachTo The element or element ID to which the key
|
|
|
2307 * event should be attached
|
|
|
2308 * @param {Object} keyData The object literal representing the key(s)
|
|
|
2309 * to detect. Possible attributes are
|
|
|
2310 * shift(boolean), alt(boolean), ctrl(boolean)
|
|
|
2311 * and keys(either an int or an array of ints
|
|
|
2312 * representing keycodes).
|
|
|
2313 * @param {Function} handler The CustomEvent handler to fire when the
|
|
|
2314 * key event is detected
|
|
|
2315 * @param {Object} handler An object literal representing the handler.
|
|
|
2316 * @param {String} event Optional. The event (keydown or keyup) to
|
|
|
2317 * listen for. Defaults automatically to keydown.
|
|
|
2318 *
|
|
|
2319 * @knownissue the "keypress" event is completely broken in Safari 2.x and below.
|
|
|
2320 * the workaround is use "keydown" for key listening. However, if
|
|
|
2321 * it is desired to prevent the default behavior of the keystroke,
|
|
|
2322 * that can only be done on the keypress event. This makes key
|
|
|
2323 * handling quite ugly.
|
|
|
2324 * @knownissue keydown is also broken in Safari 2.x and below for the ESC key.
|
|
|
2325 * There currently is no workaround other than choosing another
|
|
|
2326 * key to listen for.
|
|
|
2327 */
|
|
|
2328 YAHOO.util.KeyListener = function(attachTo, keyData, handler, event) {
|
|
|
2329 if (!attachTo) {
|
|
|
2330 YAHOO.log("No attachTo element specified", "error");
|
|
|
2331 } else if (!keyData) {
|
|
|
2332 YAHOO.log("No keyData specified", "error");
|
|
|
2333 } else if (!handler) {
|
|
|
2334 YAHOO.log("No handler specified", "error");
|
|
|
2335 }
|
|
|
2336
|
|
|
2337 if (!event) {
|
|
|
2338 event = YAHOO.util.KeyListener.KEYDOWN;
|
|
|
2339 }
|
|
|
2340
|
|
|
2341 /**
|
|
|
2342 * The CustomEvent fired internally when a key is pressed
|
|
|
2343 * @event keyEvent
|
|
|
2344 * @private
|
|
|
2345 * @param {Object} keyData The object literal representing the key(s) to
|
|
|
2346 * detect. Possible attributes are shift(boolean),
|
|
|
2347 * alt(boolean), ctrl(boolean) and keys(either an
|
|
|
2348 * int or an array of ints representing keycodes).
|
|
|
2349 */
|
|
|
2350 var keyEvent = new YAHOO.util.CustomEvent("keyPressed");
|
|
|
2351
|
|
|
2352 /**
|
|
|
2353 * The CustomEvent fired when the KeyListener is enabled via the enable()
|
|
|
2354 * function
|
|
|
2355 * @event enabledEvent
|
|
|
2356 * @param {Object} keyData The object literal representing the key(s) to
|
|
|
2357 * detect. Possible attributes are shift(boolean),
|
|
|
2358 * alt(boolean), ctrl(boolean) and keys(either an
|
|
|
2359 * int or an array of ints representing keycodes).
|
|
|
2360 */
|
|
|
2361 this.enabledEvent = new YAHOO.util.CustomEvent("enabled");
|
|
|
2362
|
|
|
2363 /**
|
|
|
2364 * The CustomEvent fired when the KeyListener is disabled via the
|
|
|
2365 * disable() function
|
|
|
2366 * @event disabledEvent
|
|
|
2367 * @param {Object} keyData The object literal representing the key(s) to
|
|
|
2368 * detect. Possible attributes are shift(boolean),
|
|
|
2369 * alt(boolean), ctrl(boolean) and keys(either an
|
|
|
2370 * int or an array of ints representing keycodes).
|
|
|
2371 */
|
|
|
2372 this.disabledEvent = new YAHOO.util.CustomEvent("disabled");
|
|
|
2373
|
|
|
2374 if (Lang.isString(attachTo)) {
|
|
|
2375 attachTo = document.getElementById(attachTo); // No Dom util
|
|
|
2376 }
|
|
|
2377
|
|
|
2378 if (Lang.isFunction(handler)) {
|
|
|
2379 keyEvent.subscribe(handler);
|
|
|
2380 } else {
|
|
|
2381 keyEvent.subscribe(handler.fn, handler.scope, handler.correctScope);
|
|
|
2382 }
|
|
|
2383
|
|
|
2384 /**
|
|
|
2385 * Handles the key event when a key is pressed.
|
|
|
2386 * @method handleKeyPress
|
|
|
2387 * @param {DOMEvent} e The keypress DOM event
|
|
|
2388 * @param {Object} obj The DOM event scope object
|
|
|
2389 * @private
|
|
|
2390 */
|
|
|
2391 function handleKeyPress(e, obj) {
|
|
|
2392 if (! keyData.shift) {
|
|
|
2393 keyData.shift = false;
|
|
|
2394 }
|
|
|
2395 if (! keyData.alt) {
|
|
|
2396 keyData.alt = false;
|
|
|
2397 }
|
|
|
2398 if (! keyData.ctrl) {
|
|
|
2399 keyData.ctrl = false;
|
|
|
2400 }
|
|
|
2401
|
|
|
2402 // check held down modifying keys first
|
|
|
2403 if (e.shiftKey == keyData.shift &&
|
|
|
2404 e.altKey == keyData.alt &&
|
|
|
2405 e.ctrlKey == keyData.ctrl) { // if we pass this, all modifiers match
|
|
|
2406
|
|
|
2407 var dataItem, keys = keyData.keys, key;
|
|
|
2408
|
|
|
2409 if (YAHOO.lang.isArray(keys)) {
|
|
|
2410 for (var i=0;i<keys.length;i++) {
|
|
|
2411 dataItem = keys[i];
|
|
|
2412 key = Event.getCharCode(e);
|
|
|
2413
|
|
|
2414 if (dataItem == key) {
|
|
|
2415 keyEvent.fire(key, e);
|
|
|
2416 break;
|
|
|
2417 }
|
|
|
2418 }
|
|
|
2419 } else {
|
|
|
2420 key = Event.getCharCode(e);
|
|
|
2421 if (keys == key ) {
|
|
|
2422 keyEvent.fire(key, e);
|
|
|
2423 }
|
|
|
2424 }
|
|
|
2425 }
|
|
|
2426 }
|
|
|
2427
|
|
|
2428 /**
|
|
|
2429 * Enables the KeyListener by attaching the DOM event listeners to the
|
|
|
2430 * target DOM element
|
|
|
2431 * @method enable
|
|
|
2432 */
|
|
|
2433 this.enable = function() {
|
|
|
2434 if (! this.enabled) {
|
|
|
2435 Event.on(attachTo, event, handleKeyPress);
|
|
|
2436 this.enabledEvent.fire(keyData);
|
|
|
2437 }
|
|
|
2438 /**
|
|
|
2439 * Boolean indicating the enabled/disabled state of the Tooltip
|
|
|
2440 * @property enabled
|
|
|
2441 * @type Boolean
|
|
|
2442 */
|
|
|
2443 this.enabled = true;
|
|
|
2444 };
|
|
|
2445
|
|
|
2446 /**
|
|
|
2447 * Disables the KeyListener by removing the DOM event listeners from the
|
|
|
2448 * target DOM element
|
|
|
2449 * @method disable
|
|
|
2450 */
|
|
|
2451 this.disable = function() {
|
|
|
2452 if (this.enabled) {
|
|
|
2453 Event.removeListener(attachTo, event, handleKeyPress);
|
|
|
2454 this.disabledEvent.fire(keyData);
|
|
|
2455 }
|
|
|
2456 this.enabled = false;
|
|
|
2457 };
|
|
|
2458
|
|
|
2459 /**
|
|
|
2460 * Returns a String representation of the object.
|
|
|
2461 * @method toString
|
|
|
2462 * @return {String} The string representation of the KeyListener
|
|
|
2463 */
|
|
|
2464 this.toString = function() {
|
|
|
2465 return "KeyListener [" + keyData.keys + "] " + attachTo.tagName +
|
|
|
2466 (attachTo.id ? "[" + attachTo.id + "]" : "");
|
|
|
2467 };
|
|
|
2468
|
|
|
2469 };
|
|
|
2470
|
|
|
2471 var KeyListener = YAHOO.util.KeyListener;
|
|
|
2472
|
|
|
2473 /**
|
|
|
2474 * Constant representing the DOM "keydown" event.
|
|
|
2475 * @property YAHOO.util.KeyListener.KEYDOWN
|
|
|
2476 * @static
|
|
|
2477 * @final
|
|
|
2478 * @type String
|
|
|
2479 */
|
|
|
2480 KeyListener.KEYDOWN = "keydown";
|
|
|
2481
|
|
|
2482 /**
|
|
|
2483 * Constant representing the DOM "keyup" event.
|
|
|
2484 * @property YAHOO.util.KeyListener.KEYUP
|
|
|
2485 * @static
|
|
|
2486 * @final
|
|
|
2487 * @type String
|
|
|
2488 */
|
|
|
2489 KeyListener.KEYUP = "keyup";
|
|
|
2490
|
|
|
2491 /**
|
|
|
2492 * keycode constants for a subset of the special keys
|
|
|
2493 * @property KEY
|
|
|
2494 * @static
|
|
|
2495 * @final
|
|
|
2496 */
|
|
|
2497 KeyListener.KEY = {
|
|
|
2498 ALT : 18,
|
|
|
2499 BACK_SPACE : 8,
|
|
|
2500 CAPS_LOCK : 20,
|
|
|
2501 CONTROL : 17,
|
|
|
2502 DELETE : 46,
|
|
|
2503 DOWN : 40,
|
|
|
2504 END : 35,
|
|
|
2505 ENTER : 13,
|
|
|
2506 ESCAPE : 27,
|
|
|
2507 HOME : 36,
|
|
|
2508 LEFT : 37,
|
|
|
2509 META : 224,
|
|
|
2510 NUM_LOCK : 144,
|
|
|
2511 PAGE_DOWN : 34,
|
|
|
2512 PAGE_UP : 33,
|
|
|
2513 PAUSE : 19,
|
|
|
2514 PRINTSCREEN : 44,
|
|
|
2515 RIGHT : 39,
|
|
|
2516 SCROLL_LOCK : 145,
|
|
|
2517 SHIFT : 16,
|
|
|
2518 SPACE : 32,
|
|
|
2519 TAB : 9,
|
|
|
2520 UP : 38
|
|
|
2521 };
|
|
|
2522
|
|
|
2523 })();
|
|
|
2524 YAHOO.register("event", YAHOO.util.Event, {version: "2.8.0r4", build: "2449"});
|
