"

From 2010.igem.org

/*!

* jQuery UI Mouse 1.8.4
*
* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* http://docs.jquery.com/UI/Mouse
*
* Depends:
*	jquery.ui.widget.js
*/

(function( $, undefined ) {

$.widget("ui.mouse", { options: { cancel: ':input,option', distance: 1, delay: 0 }, _mouseInit: function() { var self = this;

this.element .bind('mousedown.'+this.widgetName, function(event) { return self._mouseDown(event); }) .bind('click.'+this.widgetName, function(event) { if(self._preventClickEvent) { self._preventClickEvent = false; event.stopImmediatePropagation(); return false; } });

this.started = false; },

// TODO: make sure destroying one instance of mouse doesn't mess with // other instances of mouse _mouseDestroy: function() { this.element.unbind('.'+this.widgetName); },

_mouseDown: function(event) { // don't let more than one widget handle mouseStart // TODO: figure out why we have to use originalEvent event.originalEvent = event.originalEvent || {}; if (event.originalEvent.mouseHandled) { return; }

// we may have missed mouseup (out of window) (this._mouseStarted && this._mouseUp(event));

this._mouseDownEvent = event;

var self = this, btnIsLeft = (event.which == 1), elIsCancel = (typeof this.options.cancel == "string" ? $(event.target).parents().add(event.target).filter(this.options.cancel).length : false); if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) { return true; }

this.mouseDelayMet = !this.options.delay; if (!this.mouseDelayMet) { this._mouseDelayTimer = setTimeout(function() { self.mouseDelayMet = true; }, this.options.delay); }

if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) { this._mouseStarted = (this._mouseStart(event) !== false); if (!this._mouseStarted) { event.preventDefault(); return true; } }

// these delegates are required to keep context this._mouseMoveDelegate = function(event) { return self._mouseMove(event); }; this._mouseUpDelegate = function(event) { return self._mouseUp(event); }; $(document) .bind('mousemove.'+this.widgetName, this._mouseMoveDelegate) .bind('mouseup.'+this.widgetName, this._mouseUpDelegate);

// preventDefault() is used to prevent the selection of text here - // however, in Safari, this causes select boxes not to be selectable // anymore, so this fix is needed ($.browser.safari || event.preventDefault());

event.originalEvent.mouseHandled = true; return true; },

_mouseMove: function(event) { // IE mouseup check - mouseup happened when mouse was out of window if ($.browser.msie && !event.button) { return this._mouseUp(event); }

if (this._mouseStarted) { this._mouseDrag(event); return event.preventDefault(); }

if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) { this._mouseStarted = (this._mouseStart(this._mouseDownEvent, event) !== false); (this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event)); }

return !this._mouseStarted; },

_mouseUp: function(event) { $(document) .unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate) .unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);

if (this._mouseStarted) { this._mouseStarted = false; this._preventClickEvent = (event.target == this._mouseDownEvent.target); this._mouseStop(event); }

return false; },

_mouseDistanceMet: function(event) { return (Math.max( Math.abs(this._mouseDownEvent.pageX - event.pageX), Math.abs(this._mouseDownEvent.pageY - event.pageY) ) >= this.options.distance ); },

_mouseDelayMet: function(event) { return this.mouseDelayMet; },

// These are placeholder methods, to be overriden by extending plugin _mouseStart: function(event) {}, _mouseDrag: function(event) {}, _mouseStop: function(event) {}, _mouseCapture: function(event) { return true; } });

})(jQuery);