/*\ title: $:/core/modules/utils/dom/popup.js type: application/javascript module-type: utils Module that creates a $tw.utils.Popup object prototype that manages popups in the browser \*/ (function(){ /*jslint node: true, browser: true */ /*global $tw: false */ "use strict"; /* Creates a Popup object with these options: rootElement: the DOM element to which the popup zapper should be attached */ var Popup = function(options) { options = options || {}; this.rootElement = options.rootElement || document.body; }; Popup.prototype.show = function(options) { this.cancel(); this.title = options.title; this.wiki = options.wiki; this.anchorDomNode = options.domNode; $tw.utils.addClass(this.anchorDomNode,"tc-popup"); this.rootElement.addEventListener("click",this,false); }; Popup.prototype.handleEvent = function(event) { // Dismiss the popup if we get a click on an element that doesn't have .tc-popup class if(event.type === "click") { var node = event.target; while(node && !$tw.utils.hasClass(node,"tc-popup")) { node = node.parentNode; } if(!node) { this.cancel(); } } }; Popup.prototype.cancel = function() { if(this.anchorDomNode) { $tw.utils.removeClass(this.anchorDomNode,"tc-popup"); this.anchorDomNode = null; } this.rootElement.removeEventListener("click",this,false); if(this.title) { this.wiki.deleteTiddler(this.title); this.title = null; } }; /* Trigger a popup open or closed. Parameters are in a hashmap: title: title of the tiddler where the popup details are stored domNode: dom node to which the popup will be positioned wiki: wiki force: if specified, forces the popup state to true or false */ Popup.prototype.triggerPopup = function(options) { // Get the current popup state tiddler var value = options.wiki.getTextReference(options.title,""); // Check if the popup is open by checking whether it matches "(,)" var state = !this.readPopupState(options.title,value); if("force" in options) { state = options.force; } if(state) { // Set the position if we're opening it this.cancel(); options.wiki.setTextReference(options.title, "(" + options.domNode.offsetLeft + "," + options.domNode.offsetTop + "," + options.domNode.offsetWidth + "," + options.domNode.offsetHeight + ")"); this.show(options); } else { this.cancel(); } }; /* Returns true if the specified title and text identifies an active popup */ Popup.prototype.readPopupState = function(title,text) { var popupLocationRegExp = /^\((-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+)\)$/, result = false; if(this.title === title) { result = popupLocationRegExp.test(text); } return result; }; exports.Popup = Popup; })();