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Alchemy
264
www/include/jslibs/jquery.contextmenu.js
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264
www/include/jslibs/jquery.contextmenu.js
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/**
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* Copyright (c)2005-2009 Matt Kruse (javascripttoolbox.com)
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*
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* Dual licensed under the MIT and GPL licenses.
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* This basically means you can use this code however you want for
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* free, but don't claim to have written it yourself!
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* Donations always accepted: http://www.JavascriptToolbox.com/donate/
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*
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* Please do not link to the .js files on javascripttoolbox.com from
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* your site. Copy the files locally to your server instead.
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*
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*/
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/**
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* jquery.contextmenu.js
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* jQuery Plugin for Context Menus
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* http://www.JavascriptToolbox.com/lib/contextmenu/
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*
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* Copyright (c) 2008 Matt Kruse (javascripttoolbox.com)
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* Dual licensed under the MIT and GPL licenses.
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*
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* @version 1.0
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* @history 1.0 2008-10-20 Initial Release
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* @todo slideUp doesn't work in IE - because of iframe?
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* @todo Hide all other menus when contextmenu is shown?
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* @todo More themes
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* @todo Nested context menus
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*/
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;(function($){
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$.contextMenu = {
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shadow:true,
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shadowOffset:0,
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shadowOffsetX:5,
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shadowOffsetY:5,
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shadowWidthAdjust:-3,
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shadowHeightAdjust:-3,
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shadowOpacity:0.2,
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shadowClass:'context-menu-shadow',
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shadowColor:'black',
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offsetX:0,
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offsetY:0,
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appendTo:'body',
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direction:'down',
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constrainToScreen:true,
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showTransition:'show',
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hideTransition:'hide',
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showSpeed:'',
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hideSpeed:'',
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showCallback:null,
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hideCallback:null,
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className:'context-menu',
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itemClassName:'context-menu-item',
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itemHoverClassName:'context-menu-item-hover',
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disabledItemClassName:'context-menu-item-disabled',
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disabledItemHoverClassName:'context-menu-item-disabled-hover',
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separatorClassName:'context-menu-separator',
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innerDivClassName:'context-menu-item-inner',
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themePrefix:'context-menu-theme-',
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theme:'default',
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separator:'context-menu-separator', // A specific key to identify a separator
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target:null, // The target of the context click, to be populated when triggered
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menu:null, // The jQuery object containing the HTML object that is the menu itself
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shadowObj:null, // Shadow object
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bgiframe:null, // The iframe object for IE6
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shown:false, // Currently being shown?
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useIframe:/*@cc_on @*//*@if (@_win32) true, @else @*/false,/*@end @*/ // This is a better check than looking at userAgent!
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// Create the menu instance
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create: function(menu,opts) {
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var cmenu = $.extend({},this,opts); // Clone all default properties to created object
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// If a selector has been passed in, then use that as the menu
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if (typeof menu=="string") {
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cmenu.menu = $(menu);
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}
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// If a function has been passed in, call it each time the menu is shown to create the menu
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else if (typeof menu=="function") {
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cmenu.menuFunction = menu;
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}
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// Otherwise parse the Array passed in
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else {
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cmenu.menu = cmenu.createMenu(menu,cmenu);
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}
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if (cmenu.menu) {
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cmenu.menu.css({display:'none'});
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$(cmenu.appendTo).append(cmenu.menu);
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}
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// Create the shadow object if shadow is enabled
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if (cmenu.shadow) {
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cmenu.createShadow(cmenu); // Extracted to method for extensibility
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if (cmenu.shadowOffset) { cmenu.shadowOffsetX = cmenu.shadowOffsetY = cmenu.shadowOffset; }
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}
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$('body').bind('contextmenu',function(){cmenu.hide();}); // If right-clicked somewhere else in the document, hide this menu
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return cmenu;
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},
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// Create an iframe object to go behind the menu
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createIframe: function() {
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return $('<iframe frameborder="0" tabindex="-1" src="javascript:false" style="display:block;position:absolute;z-index:-1;filter:Alpha(Opacity=0);"/>');
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},
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// Accept an Array representing a menu structure and turn it into HTML
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createMenu: function(menu,cmenu) {
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var className = cmenu.className;
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$.each(cmenu.theme.split(","),function(i,n){className+=' '+cmenu.themePrefix+n;});
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var $t = $('<table cellspacing=0 cellpadding=0></table>').click(function(){cmenu.hide(); return false;}); // We wrap a table around it so width can be flexible
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var $tr = $('<tr></tr>');
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var $td = $('<td></td>');
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var $div = $('<div class="'+className+'"></div>');
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// Each menu item is specified as either:
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// title:function
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// or title: { property:value ... }
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for (var i=0; i<menu.length; i++) {
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var m = menu[i];
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if (m==$.contextMenu.separator) {
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$div.append(cmenu.createSeparator());
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}
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else {
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for (var opt in menu[i]) {
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$div.append(cmenu.createMenuItem(opt,menu[i][opt])); // Extracted to method for extensibility
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}
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}
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}
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if ( cmenu.useIframe ) {
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$td.append(cmenu.createIframe());
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}
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$t.append($tr.append($td.append($div)));
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return $t;
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},
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// Create an individual menu item
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createMenuItem: function(label,obj) {
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var cmenu = this;
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if (typeof obj=="function") { obj={onclick:obj}; } // If passed a simple function, turn it into a property of an object
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// Default properties, extended in case properties are passed
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var o = $.extend({
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onclick:function() { },
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className:'',
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hoverClassName:cmenu.itemHoverClassName,
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icon:'',
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disabled:false,
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title:'',
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hoverItem:cmenu.hoverItem,
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hoverItemOut:cmenu.hoverItemOut
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},obj);
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// If an icon is specified, hard-code the background-image style. Themes that don't show images should take this into account in their CSS
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var iconStyle = (o.icon)?'background-image:url('+o.icon+');':'';
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var $div = $('<div class="'+cmenu.itemClassName+' '+o.className+((o.disabled)?' '+cmenu.disabledItemClassName:'')+'" title="'+o.title+'"></div>')
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// If the item is disabled, don't do anything when it is clicked
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.click(function(e){if(cmenu.isItemDisabled(this)){return false;}else{return o.onclick.call(cmenu.target,this,cmenu,e);}})
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// Change the class of the item when hovered over
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.hover( function(){ o.hoverItem.call(this,(cmenu.isItemDisabled(this))?cmenu.disabledItemHoverClassName:o.hoverClassName); }
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,function(){ o.hoverItemOut.call(this,(cmenu.isItemDisabled(this))?cmenu.disabledItemHoverClassName:o.hoverClassName); }
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);
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var $idiv = $('<div class="'+cmenu.innerDivClassName+'" style="'+iconStyle+'">'+label+'</div>');
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$div.append($idiv);
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return $div;
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},
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// Create a separator row
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createSeparator: function() {
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return $('<div class="'+this.separatorClassName+'"></div>');
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},
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// Determine if an individual item is currently disabled. This is called each time the item is hovered or clicked because the disabled status may change at any time
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isItemDisabled: function(item) { return $(item).is('.'+this.disabledItemClassName); },
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// Functions to fire on hover. Extracted to methods for extensibility
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hoverItem: function(c) { $(this).addClass(c); },
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hoverItemOut: function(c) { $(this).removeClass(c); },
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// Create the shadow object
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createShadow: function(cmenu) {
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cmenu.shadowObj = $('<div class="'+cmenu.shadowClass+'"></div>').css( {display:'none',position:"absolute", zIndex:9998, opacity:cmenu.shadowOpacity, backgroundColor:cmenu.shadowColor } );
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$(cmenu.appendTo).append(cmenu.shadowObj);
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},
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// Display the shadow object, given the position of the menu itself
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showShadow: function(x,y,e) {
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var cmenu = this;
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if (cmenu.shadow) {
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cmenu.shadowObj.css( {
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width:(cmenu.menu.width()+cmenu.shadowWidthAdjust)+"px",
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height:(cmenu.menu.height()+cmenu.shadowHeightAdjust)+"px",
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top:(y+cmenu.shadowOffsetY)+"px",
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left:(x+cmenu.shadowOffsetX)+"px"
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}).addClass(cmenu.shadowClass)[cmenu.showTransition](cmenu.showSpeed);
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}
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},
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// A hook to call before the menu is shown, in case special processing needs to be done.
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// Return false to cancel the default show operation
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beforeShow: function() { return true; },
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// Show the context menu
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show: function(t,e) {
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var cmenu=this, x=e.pageX, y=e.pageY;
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cmenu.target = t; // Preserve the object that triggered this context menu so menu item click methods can see it
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if (cmenu.beforeShow()!==false) {
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// If the menu content is a function, call it to populate the menu each time it is displayed
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if (cmenu.menuFunction) {
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if (cmenu.menu) { $(cmenu.menu).remove(); }
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cmenu.menu = cmenu.createMenu(cmenu.menuFunction(cmenu,t),cmenu);
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cmenu.menu.css({display:'none'});
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$(cmenu.appendTo).append(cmenu.menu);
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}
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var $c = cmenu.menu;
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x+=cmenu.offsetX; y+=cmenu.offsetY;
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var pos = cmenu.getPosition(x,y,cmenu,e); // Extracted to method for extensibility
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cmenu.showShadow(pos.x,pos.y,e);
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// Resize the iframe if needed
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if (cmenu.useIframe) {
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$c.find('iframe').css({width:$c.width()+cmenu.shadowOffsetX+cmenu.shadowWidthAdjust,height:$c.height()+cmenu.shadowOffsetY+cmenu.shadowHeightAdjust});
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}
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$c.css( {top:pos.y+"px", left:pos.x+"px", position:"absolute",zIndex:9999} )[cmenu.showTransition](cmenu.showSpeed,((cmenu.showCallback)?function(){cmenu.showCallback.call(cmenu);}:null));
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cmenu.shown=true;
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$(document).one('click',null,function(){cmenu.hide();}); // Handle a single click to the document to hide the menu
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}
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},
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// Find the position where the menu should appear, given an x,y of the click event
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getPosition: function(clickX,clickY,cmenu,e) {
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var x = clickX+cmenu.offsetX;
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var y = clickY+cmenu.offsetY;
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var h = $(cmenu.menu).height();
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var w = $(cmenu.menu).width();
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var dir = cmenu.direction;
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if (cmenu.constrainToScreen) {
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var $w = $(window);
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var wh = $w.height();
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var ww = $w.width();
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if (dir=="down" && (y+h-$w.scrollTop() > wh)) { dir = "up"; }
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var maxRight = x+w-$w.scrollLeft();
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if (maxRight > ww) { x -= (maxRight-ww); }
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}
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if (dir=="up") { y -= h; }
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return {'x':x,'y':y};
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},
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// Hide the menu, of course
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hide: function() {
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var cmenu=this;
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if (cmenu.shown) {
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if (cmenu.iframe) { $(cmenu.iframe).hide(); }
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if (cmenu.menu) { cmenu.menu[cmenu.hideTransition](cmenu.hideSpeed,((cmenu.hideCallback)?function(){cmenu.hideCallback.call(cmenu);}:null)); }
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if (cmenu.shadow) { cmenu.shadowObj[cmenu.hideTransition](cmenu.hideSpeed); }
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}
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cmenu.shown = false;
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}
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};
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// This actually adds the .contextMenu() function to the jQuery namespace
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$.fn.contextMenu = function(menu,options) {
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var cmenu = $.contextMenu.create(menu,options);
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return this.each(function(){
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$(this).bind('contextmenu click',function(e){cmenu.show(this,e);return false;});
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});
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};
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})(jQuery);
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