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/*!
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* jQuery UI Mouse 1.9.1
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* http://jqueryui.com
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*
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* Copyright 2012 jQuery Foundation and other contributors
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* Released under the MIT license.
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* http://jquery.org/license
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*
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* http://api.jqueryui.com/mouse/
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*
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* Depends:
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* jquery.ui.widget.js
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*/
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(function( $, undefined ) {
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var mouseHandled = false;
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$( document ).mouseup( function( e ) {
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mouseHandled = false;
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});
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$.widget("ui.mouse", {
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version: "1.9.1",
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options: {
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cancel: 'input,textarea,button,select,option',
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distance: 1,
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delay: 0
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},
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_mouseInit: function() {
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var that = this;
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this.element
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.bind('mousedown.'+this.widgetName, function(event) {
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return that._mouseDown(event);
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})
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.bind('click.'+this.widgetName, function(event) {
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if (true === $.data(event.target, that.widgetName + '.preventClickEvent')) {
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$.removeData(event.target, that.widgetName + '.preventClickEvent');
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event.stopImmediatePropagation();
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return false;
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}
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});
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this.started = false;
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},
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// TODO: make sure destroying one instance of mouse doesn't mess with
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// other instances of mouse
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_mouseDestroy: function() {
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this.element.unbind('.'+this.widgetName);
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if ( this._mouseMoveDelegate ) {
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$(document)
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.unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
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.unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);
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}
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},
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_mouseDown: function(event) {
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// don't let more than one widget handle mouseStart
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if( mouseHandled ) { return; }
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// we may have missed mouseup (out of window)
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(this._mouseStarted && this._mouseUp(event));
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this._mouseDownEvent = event;
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var that = this,
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btnIsLeft = (event.which === 1),
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// event.target.nodeName works around a bug in IE 8 with
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// disabled inputs (#7620)
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elIsCancel = (typeof this.options.cancel === "string" && event.target.nodeName ? $(event.target).closest(this.options.cancel).length : false);
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if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
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return true;
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}
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this.mouseDelayMet = !this.options.delay;
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if (!this.mouseDelayMet) {
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this._mouseDelayTimer = setTimeout(function() {
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that.mouseDelayMet = true;
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}, this.options.delay);
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}
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if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
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this._mouseStarted = (this._mouseStart(event) !== false);
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if (!this._mouseStarted) {
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event.preventDefault();
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return true;
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}
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}
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// Click event may never have fired (Gecko & Opera)
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if (true === $.data(event.target, this.widgetName + '.preventClickEvent')) {
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$.removeData(event.target, this.widgetName + '.preventClickEvent');
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}
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// these delegates are required to keep context
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this._mouseMoveDelegate = function(event) {
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return that._mouseMove(event);
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};
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this._mouseUpDelegate = function(event) {
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return that._mouseUp(event);
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};
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$(document)
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.bind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
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.bind('mouseup.'+this.widgetName, this._mouseUpDelegate);
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event.preventDefault();
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mouseHandled = true;
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return true;
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},
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_mouseMove: function(event) {
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// IE mouseup check - mouseup happened when mouse was out of window
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if ($.ui.ie && !(document.documentMode >= 9) && !event.button) {
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return this._mouseUp(event);
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}
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if (this._mouseStarted) {
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this._mouseDrag(event);
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return event.preventDefault();
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}
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if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
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this._mouseStarted =
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(this._mouseStart(this._mouseDownEvent, event) !== false);
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(this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));
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}
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return !this._mouseStarted;
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},
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_mouseUp: function(event) {
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$(document)
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.unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
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.unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);
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if (this._mouseStarted) {
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this._mouseStarted = false;
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if (event.target === this._mouseDownEvent.target) {
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$.data(event.target, this.widgetName + '.preventClickEvent', true);
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}
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this._mouseStop(event);
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}
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return false;
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},
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_mouseDistanceMet: function(event) {
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return (Math.max(
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Math.abs(this._mouseDownEvent.pageX - event.pageX),
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Math.abs(this._mouseDownEvent.pageY - event.pageY)
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) >= this.options.distance
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);
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},
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_mouseDelayMet: function(event) {
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return this.mouseDelayMet;
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},
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// These are placeholder methods, to be overriden by extending plugin
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_mouseStart: function(event) {},
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_mouseDrag: function(event) {},
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_mouseStop: function(event) {},
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_mouseCapture: function(event) { return true; }
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});
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})(jQuery);
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