mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-24 02:27:19 +00:00
91 lines
2.3 KiB
JavaScript
91 lines
2.3 KiB
JavaScript
/*\
|
|
title: $:/core/modules/widgets/keyboard.js
|
|
type: application/javascript
|
|
module-type: widget
|
|
|
|
Keyboard shortcut widget
|
|
|
|
\*/
|
|
(function(){
|
|
|
|
/*jslint node: true, browser: true */
|
|
/*global $tw: false */
|
|
"use strict";
|
|
|
|
var Widget = require("$:/core/modules/widgets/widget.js").widget;
|
|
|
|
var KeyboardWidget = function(parseTreeNode,options) {
|
|
this.initialise(parseTreeNode,options);
|
|
};
|
|
|
|
/*
|
|
Inherit from the base widget class
|
|
*/
|
|
KeyboardWidget.prototype = new Widget();
|
|
|
|
/*
|
|
Render this widget into the DOM
|
|
*/
|
|
KeyboardWidget.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("div");
|
|
// Assign classes
|
|
var classes = (this["class"] || "").split(" ");
|
|
classes.push("tc-keyboard");
|
|
domNode.className = classes.join(" ");
|
|
// Add a keyboard event handler
|
|
domNode.addEventListener("keydown",function (event) {
|
|
if($tw.utils.checkKeyDescriptor(event,self.keyInfo)) {
|
|
self.dispatchMessage(event);
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
return true;
|
|
}
|
|
return false;
|
|
},false);
|
|
// Insert element
|
|
parent.insertBefore(domNode,nextSibling);
|
|
this.renderChildren(domNode,null);
|
|
this.domNodes.push(domNode);
|
|
};
|
|
|
|
KeyboardWidget.prototype.dispatchMessage = function(event) {
|
|
this.dispatchEvent({type: this.message, param: this.param, tiddlerTitle: this.getVariable("currentTiddler")});
|
|
};
|
|
|
|
/*
|
|
Compute the internal state of the widget
|
|
*/
|
|
KeyboardWidget.prototype.execute = function() {
|
|
// Get attributes
|
|
this.message = this.getAttribute("message");
|
|
this.param = this.getAttribute("param");
|
|
this.key = this.getAttribute("key");
|
|
this.keyInfo = $tw.utils.parseKeyDescriptor(this.key);
|
|
this["class"] = this.getAttribute("class");
|
|
// Make child widgets
|
|
this.makeChildWidgets();
|
|
};
|
|
|
|
/*
|
|
Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
|
|
*/
|
|
KeyboardWidget.prototype.refresh = function(changedTiddlers) {
|
|
var changedAttributes = this.computeAttributes();
|
|
if(changedAttributes.message || changedAttributes.param || changedAttributes.key || changedAttributes["class"]) {
|
|
this.refreshSelf();
|
|
return true;
|
|
}
|
|
return this.refreshChildren(changedTiddlers);
|
|
};
|
|
|
|
exports.keyboard = KeyboardWidget;
|
|
|
|
})();
|