2 * jQuery UI Mouse 1.8.10
4 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
5 * Dual licensed under the MIT or GPL Version 2 licenses.
6 * http://jquery.org/license
8 * http://docs.jquery.com/UI/Mouse
13 (function( $, undefined ) {
15 $.widget("ui.mouse", {
17 cancel: ':input,option',
21 _mouseInit: function() {
25 .bind('mousedown.'+this.widgetName, function(event) {
26 return self._mouseDown(event);
28 .bind('click.'+this.widgetName, function(event) {
29 if (true === $.data(event.target, self.widgetName + '.preventClickEvent')) {
30 $.removeData(event.target, self.widgetName + '.preventClickEvent');
31 event.stopImmediatePropagation();
39 // TODO: make sure destroying one instance of mouse doesn't mess with
40 // other instances of mouse
41 _mouseDestroy: function() {
42 this.element.unbind('.'+this.widgetName);
45 _mouseDown: function(event) {
46 // don't let more than one widget handle mouseStart
47 // TODO: figure out why we have to use originalEvent
48 event.originalEvent = event.originalEvent || {};
49 if (event.originalEvent.mouseHandled) { return; }
51 // we may have missed mouseup (out of window)
52 (this._mouseStarted && this._mouseUp(event));
54 this._mouseDownEvent = event;
57 btnIsLeft = (event.which == 1),
58 elIsCancel = (typeof this.options.cancel == "string" ? $(event.target).parents().add(event.target).filter(this.options.cancel).length : false);
59 if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
63 this.mouseDelayMet = !this.options.delay;
64 if (!this.mouseDelayMet) {
65 this._mouseDelayTimer = setTimeout(function() {
66 self.mouseDelayMet = true;
67 }, this.options.delay);
70 if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
71 this._mouseStarted = (this._mouseStart(event) !== false);
72 if (!this._mouseStarted) {
73 event.preventDefault();
78 // these delegates are required to keep context
79 this._mouseMoveDelegate = function(event) {
80 return self._mouseMove(event);
82 this._mouseUpDelegate = function(event) {
83 return self._mouseUp(event);
86 .bind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
87 .bind('mouseup.'+this.widgetName, this._mouseUpDelegate);
89 event.preventDefault();
90 event.originalEvent.mouseHandled = true;
94 _mouseMove: function(event) {
95 // IE mouseup check - mouseup happened when mouse was out of window
96 if ($.browser.msie && !(document.documentMode >= 9) && !event.button) {
97 return this._mouseUp(event);
100 if (this._mouseStarted) {
101 this._mouseDrag(event);
102 return event.preventDefault();
105 if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
107 (this._mouseStart(this._mouseDownEvent, event) !== false);
108 (this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));
111 return !this._mouseStarted;
114 _mouseUp: function(event) {
116 .unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
117 .unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);
119 if (this._mouseStarted) {
120 this._mouseStarted = false;
122 if (event.target == this._mouseDownEvent.target) {
123 $.data(event.target, this.widgetName + '.preventClickEvent', true);
126 this._mouseStop(event);
132 _mouseDistanceMet: function(event) {
134 Math.abs(this._mouseDownEvent.pageX - event.pageX),
135 Math.abs(this._mouseDownEvent.pageY - event.pageY)
136 ) >= this.options.distance
140 _mouseDelayMet: function(event) {
141 return this.mouseDelayMet;
144 // These are placeholder methods, to be overriden by extending plugin
145 _mouseStart: function(event) {},
146 _mouseDrag: function(event) {},
147 _mouseStop: function(event) {},
148 _mouseCapture: function(event) { return true; }