1 | /*! |
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2 | * jQuery UI Mouse 1.10.1 |
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3 | * http://jqueryui.com |
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4 | * |
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5 | * Copyright 2013 jQuery Foundation and other contributors |
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6 | * Released under the MIT license. |
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7 | * http://jquery.org/license |
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8 | * |
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9 | * http://api.jqueryui.com/mouse/ |
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10 | * |
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11 | * Depends: |
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12 | * jquery.ui.widget.js |
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13 | */ |
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14 | (function( $, undefined ) { |
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15 | |
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16 | var mouseHandled = false; |
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17 | $( document ).mouseup( function() { |
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18 | mouseHandled = false; |
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19 | }); |
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20 | |
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21 | $.widget("ui.mouse", { |
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22 | version: "1.10.1", |
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23 | options: { |
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24 | cancel: "input,textarea,button,select,option", |
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25 | distance: 1, |
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26 | delay: 0 |
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27 | }, |
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28 | _mouseInit: function() { |
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29 | var that = this; |
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30 | |
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31 | this.element |
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32 | .bind("mousedown."+this.widgetName, function(event) { |
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33 | return that._mouseDown(event); |
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34 | }) |
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35 | .bind("click."+this.widgetName, function(event) { |
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36 | if (true === $.data(event.target, that.widgetName + ".preventClickEvent")) { |
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37 | $.removeData(event.target, that.widgetName + ".preventClickEvent"); |
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38 | event.stopImmediatePropagation(); |
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39 | return false; |
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40 | } |
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41 | }); |
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42 | |
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43 | this.started = false; |
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44 | }, |
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45 | |
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46 | // TODO: make sure destroying one instance of mouse doesn't mess with |
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47 | // other instances of mouse |
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48 | _mouseDestroy: function() { |
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49 | this.element.unbind("."+this.widgetName); |
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50 | if ( this._mouseMoveDelegate ) { |
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51 | $(document) |
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52 | .unbind("mousemove."+this.widgetName, this._mouseMoveDelegate) |
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53 | .unbind("mouseup."+this.widgetName, this._mouseUpDelegate); |
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54 | } |
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55 | }, |
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56 | |
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57 | _mouseDown: function(event) { |
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58 | // don't let more than one widget handle mouseStart |
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59 | if( mouseHandled ) { return; } |
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60 | |
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61 | // we may have missed mouseup (out of window) |
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62 | (this._mouseStarted && this._mouseUp(event)); |
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63 | |
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64 | this._mouseDownEvent = event; |
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65 | |
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66 | var that = this, |
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67 | btnIsLeft = (event.which === 1), |
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68 | // event.target.nodeName works around a bug in IE 8 with |
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69 | // disabled inputs (#7620) |
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70 | elIsCancel = (typeof this.options.cancel === "string" && event.target.nodeName ? $(event.target).closest(this.options.cancel).length : false); |
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71 | if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) { |
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72 | return true; |
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73 | } |
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74 | |
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75 | this.mouseDelayMet = !this.options.delay; |
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76 | if (!this.mouseDelayMet) { |
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77 | this._mouseDelayTimer = setTimeout(function() { |
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78 | that.mouseDelayMet = true; |
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79 | }, this.options.delay); |
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80 | } |
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81 | |
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82 | if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) { |
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83 | this._mouseStarted = (this._mouseStart(event) !== false); |
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84 | if (!this._mouseStarted) { |
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85 | event.preventDefault(); |
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86 | return true; |
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87 | } |
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88 | } |
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89 | |
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90 | // Click event may never have fired (Gecko & Opera) |
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91 | if (true === $.data(event.target, this.widgetName + ".preventClickEvent")) { |
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92 | $.removeData(event.target, this.widgetName + ".preventClickEvent"); |
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93 | } |
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94 | |
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95 | // these delegates are required to keep context |
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96 | this._mouseMoveDelegate = function(event) { |
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97 | return that._mouseMove(event); |
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98 | }; |
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99 | this._mouseUpDelegate = function(event) { |
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100 | return that._mouseUp(event); |
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101 | }; |
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102 | $(document) |
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103 | .bind("mousemove."+this.widgetName, this._mouseMoveDelegate) |
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104 | .bind("mouseup."+this.widgetName, this._mouseUpDelegate); |
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105 | |
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106 | event.preventDefault(); |
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107 | |
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108 | mouseHandled = true; |
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109 | return true; |
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110 | }, |
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111 | |
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112 | _mouseMove: function(event) { |
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113 | // IE mouseup check - mouseup happened when mouse was out of window |
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114 | if ($.ui.ie && ( !document.documentMode || document.documentMode < 9 ) && !event.button) { |
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115 | return this._mouseUp(event); |
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116 | } |
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117 | |
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118 | if (this._mouseStarted) { |
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119 | this._mouseDrag(event); |
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120 | return event.preventDefault(); |
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121 | } |
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122 | |
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123 | if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) { |
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124 | this._mouseStarted = |
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125 | (this._mouseStart(this._mouseDownEvent, event) !== false); |
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126 | (this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event)); |
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127 | } |
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128 | |
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129 | return !this._mouseStarted; |
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130 | }, |
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131 | |
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132 | _mouseUp: function(event) { |
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133 | $(document) |
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134 | .unbind("mousemove."+this.widgetName, this._mouseMoveDelegate) |
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135 | .unbind("mouseup."+this.widgetName, this._mouseUpDelegate); |
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136 | |
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137 | if (this._mouseStarted) { |
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138 | this._mouseStarted = false; |
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139 | |
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140 | if (event.target === this._mouseDownEvent.target) { |
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141 | $.data(event.target, this.widgetName + ".preventClickEvent", true); |
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142 | } |
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143 | |
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144 | this._mouseStop(event); |
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145 | } |
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146 | |
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147 | return false; |
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148 | }, |
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149 | |
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150 | _mouseDistanceMet: function(event) { |
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151 | return (Math.max( |
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152 | Math.abs(this._mouseDownEvent.pageX - event.pageX), |
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153 | Math.abs(this._mouseDownEvent.pageY - event.pageY) |
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154 | ) >= this.options.distance |
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155 | ); |
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156 | }, |
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157 | |
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158 | _mouseDelayMet: function(/* event */) { |
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159 | return this.mouseDelayMet; |
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160 | }, |
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161 | |
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162 | // These are placeholder methods, to be overriden by extending plugin |
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163 | _mouseStart: function(/* event */) {}, |
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164 | _mouseDrag: function(/* event */) {}, |
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165 | _mouseStop: function(/* event */) {}, |
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166 | _mouseCapture: function(/* event */) { return true; } |
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167 | }); |
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168 | |
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169 | })(jQuery); |
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