TiddlyWiki5/core/modules/widgets/browse.js

69 wiersze
1.6 KiB
JavaScript

/*\
title: $:/core/modules/widgets/browse.js
type: application/javascript
module-type: widget
Browse widget for browsing for files to import
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var Widget = require("$:/core/modules/widgets/widget.js").widget;
var BrowseWidget = function(parseTreeNode,options) {
this.initialise(parseTreeNode,options);
};
/*
Inherit from the base widget class
*/
BrowseWidget.prototype = new Widget();
/*
Render this widget into the DOM
*/
BrowseWidget.prototype.render = function(parent,nextSibling) {
var self = this;
// Remember parent
this.parentDomNode = parent;
// Compute attributes and execute state
this.computeAttributes();
this.execute();
// Create element
var domNode = this.document.createElement("input");
domNode.setAttribute("type","file");
domNode.setAttribute("multiple","multiple");
// Add a click event handler
domNode.addEventListener("change",function (event) {
self.wiki.readFiles(event.target.files,function(tiddlerFieldsArray) {
self.dispatchEvent({type: "tm-import-tiddlers", param: JSON.stringify(tiddlerFieldsArray)});
});
return false;
},false);
// Insert element
parent.insertBefore(domNode,nextSibling);
this.renderChildren(domNode,null);
this.domNodes.push(domNode);
};
/*
Compute the internal state of the widget
*/
BrowseWidget.prototype.execute = function() {
};
/*
Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
*/
BrowseWidget.prototype.refresh = function(changedTiddlers) {
return false;
};
exports.browse = BrowseWidget;
})();