Added password widget

core/modules/new_widgets/password.js

@@ -0,0 +1,92 @@
+/*\
+title: $:/core/modules/new_widgets/password.js
+type: application/javascript
+module-type: new_widget
+
+Password widget
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+var Widget = require("$:/core/modules/new_widgets/widget.js").widget;
+
+var PasswordWidget = function(parseTreeNode,options) {
+	this.initialise(parseTreeNode,options);
+};
+
+/*
+Inherit from the base widget class
+*/
+PasswordWidget.prototype = new Widget();
+
+/*
+Render this widget into the DOM
+*/
+PasswordWidget.prototype.render = function(parent,nextSibling) {
+	// Save the parent dom node
+	this.parentDomNode = parent;
+	// Compute our attributes
+	this.computeAttributes();
+	// Execute our logic
+	this.execute();
+	// Get the current password
+	var password = $tw.browser ? $tw.utils.getPassword(this.passwordName) : "";
+	// Create our element
+	var domNode = this.document.createElement("input");
+	domNode.setAttribute("type","password");
+	domNode.setAttribute("value",password);
+	// Add a click event handler
+	$tw.utils.addEventListeners(domNode,[
+		{name: "change", handlerObject: this, handlerMethod: "handleChangeEvent"}
+	]);
+	// Insert the label into the DOM and render any children
+	parent.insertBefore(domNode,nextSibling);
+	this.renderChildren(domNode,null);
+	this.domNodes.push(domNode);
+};
+
+PasswordWidget.prototype.handleChangeEvent = function(event) {
+	var password = this.domNodes[0].value;
+	return $tw.utils.savePassword(this.passwordName,password);
+};
+
+/*
+Compute the internal state of the widget
+*/
+PasswordWidget.prototype.execute = function() {
+	// Get the parameters from the attributes
+	this.passwordName = this.getAttribute("name","");
+	// Make the child widgets
+	this.makeChildWidgets();
+};
+
+/*
+Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
+*/
+PasswordWidget.prototype.refresh = function(changedTiddlers) {
+	var changedAttributes = this.computeAttributes();
+	if(changedAttributes.name) {
+		this.refreshSelf();
+		return true;
+	} else {
+		return this.refreshChildren(changedTiddlers);
+	}
+};
+
+/*
+Remove any DOM nodes created by this widget or its children
+*/
+PasswordWidget.prototype.removeChildDomNodes = function() {
+	$tw.utils.each(this.domNodes,function(domNode) {
+		domNode.parentNode.removeChild(domNode);
+	});
+	this.domNodes = [];
+};
+
+exports.password = PasswordWidget;
+
+})();