mirror of
https://github.com/Jermolene/TiddlyWiki5
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100 lines
2.6 KiB
JavaScript
100 lines
2.6 KiB
JavaScript
/*\
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title: $:/core/modules/utils/dom/popup.js
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type: application/javascript
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module-type: utils
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Module that creates a $tw.utils.Popup object prototype that manages popups in the browser
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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/*
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Creates a Popup object with these options:
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rootElement: the DOM element to which the popup zapper should be attached
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*/
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var Popup = function(options) {
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options = options || {};
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this.rootElement = options.rootElement || document.body;
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};
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Popup.prototype.show = function(options) {
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this.cancel();
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this.title = options.title;
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this.wiki = options.wiki;
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this.anchorDomNode = options.domNode;
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$tw.utils.addClass(this.anchorDomNode,"tc-popup");
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this.rootElement.addEventListener("click",this,false);
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};
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Popup.prototype.handleEvent = function(event) {
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// Dismiss the popup if we get a click on an element that doesn't have .tc-popup class
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if(event.type === "click") {
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var node = event.target;
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while(node && !$tw.utils.hasClass(node,"tc-popup")) {
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node = node.parentNode;
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}
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if(!node) {
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this.cancel();
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}
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}
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};
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Popup.prototype.cancel = function() {
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if(this.anchorDomNode) {
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$tw.utils.removeClass(this.anchorDomNode,"tc-popup");
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this.anchorDomNode = null;
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}
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this.rootElement.removeEventListener("click",this,false);
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if(this.title) {
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this.wiki.deleteTiddler(this.title);
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this.title = null;
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}
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};
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/*
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Trigger a popup open or closed. Parameters are in a hashmap:
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title: title of the tiddler where the popup details are stored
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domNode: dom node to which the popup will be positioned
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wiki: wiki
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force: if specified, forces the popup state to true or false
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*/
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Popup.prototype.triggerPopup = function(options) {
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// Get the current popup state tiddler
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var value = options.wiki.getTextReference(options.title,"");
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// Check if the popup is open by checking whether it matches "(<x>,<y>)"
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var state = !this.readPopupState(options.title,value);
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if("force" in options) {
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state = options.force;
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}
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if(state) {
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// Set the position if we're opening it
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this.cancel();
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options.wiki.setTextReference(options.title,
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"(" + options.domNode.offsetLeft + "," + options.domNode.offsetTop + "," +
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options.domNode.offsetWidth + "," + options.domNode.offsetHeight + ")");
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this.show(options);
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} else {
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this.cancel();
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}
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};
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/*
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Returns true if the specified title and text identifies an active popup
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*/
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Popup.prototype.readPopupState = function(title,text) {
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var popupLocationRegExp = /^\((-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+)\)$/,
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result = false;
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if(this.title === title) {
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result = popupLocationRegExp.test(text);
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}
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return result;
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};
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exports.Popup = Popup;
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})();
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