mirror of
https://github.com/Jermolene/TiddlyWiki5
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140 lines
4.2 KiB
JavaScript
140 lines
4.2 KiB
JavaScript
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/*\
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title: $:/core/modules/widgets/edit-shortcut.js
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type: application/javascript
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module-type: widget
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Widget to display an editable keyboard shortcut
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var Widget = require("$:/core/modules/widgets/widget.js").widget;
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var EditShortcutWidget = function(parseTreeNode,options) {
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this.initialise(parseTreeNode,options);
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};
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/*
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Inherit from the base widget class
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*/
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EditShortcutWidget.prototype = new Widget();
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/*
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Render this widget into the DOM
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*/
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EditShortcutWidget.prototype.render = function(parent,nextSibling) {
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this.parentDomNode = parent;
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this.computeAttributes();
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this.execute();
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this.inputNode = this.document.createElement("input");
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// Assign classes
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if(this.shortcutClass) {
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this.inputNode.className = this.shortcutClass;
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}
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// Assign other attributes
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if(this.shortcutStyle) {
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this.inputNode.setAttribute("style",this.shortcutStyle);
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}
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if(this.shortcutTooltip) {
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this.inputNode.setAttribute("title",this.shortcutTooltip);
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}
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if(this.shortcutPlaceholder) {
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this.inputNode.setAttribute("placeholder",this.shortcutPlaceholder);
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}
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if(this.shortcutAriaLabel) {
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this.inputNode.setAttribute("aria-label",this.shortcutAriaLabel);
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}
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// Assign the current shortcut
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this.updateInputNode();
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// Add event handlers
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$tw.utils.addEventListeners(this.inputNode,[
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{name: "keydown", handlerObject: this, handlerMethod: "handleKeydownEvent"}
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]);
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// Link into the DOM
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parent.insertBefore(this.inputNode,nextSibling);
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this.domNodes.push(this.inputNode);
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};
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/*
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Compute the internal state of the widget
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*/
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EditShortcutWidget.prototype.execute = function() {
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this.shortcutTiddler = this.getAttribute("tiddler");
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this.shortcutField = this.getAttribute("field");
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this.shortcutIndex = this.getAttribute("index");
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this.shortcutPlaceholder = this.getAttribute("placeholder");
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this.shortcutDefault = this.getAttribute("default","");
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this.shortcutClass = this.getAttribute("class");
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this.shortcutStyle = this.getAttribute("style");
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this.shortcutTooltip = this.getAttribute("tooltip");
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this.shortcutAriaLabel = this.getAttribute("aria-label");
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};
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/*
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Update the value of the input node
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*/
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EditShortcutWidget.prototype.updateInputNode = function() {
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if(this.shortcutField) {
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var tiddler = this.wiki.getTiddler(this.shortcutTiddler);
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if(tiddler && $tw.utils.hop(tiddler.fields,this.shortcutField)) {
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this.inputNode.value = tiddler.getFieldString(this.shortcutField);
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} else {
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this.inputNode.value = this.shortcutDefault;
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}
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} else if(this.shortcutIndex) {
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this.inputNode.value = this.wiki.extractTiddlerDataItem(this.shortcutTiddler,this.shortcutIndex,this.shortcutDefault);
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} else {
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this.inputNode.value = this.wiki.getTiddlerText(this.shortcutTiddler,this.shortcutDefault);
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}
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};
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/*
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Handle a dom "keydown" event
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*/
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EditShortcutWidget.prototype.handleKeydownEvent = function(event) {
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// Ignore shift, ctrl, meta, alt
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if(event.keyCode && $tw.keyboardManager.getModifierKeys().indexOf(event.keyCode) === -1) {
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// Get the shortcut text representation
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var value = $tw.keyboardManager.getPrintableShortcuts([{
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ctrlKey: event.ctrlKey,
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shiftKey: event.shiftKey,
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altKey: event.altKey,
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metaKey: event.metaKey,
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keyCode: event.keyCode
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}]);
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if(value.length > 0) {
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this.wiki.setText(this.shortcutTiddler,this.shortcutField,this.shortcutIndex,value[0]);
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}
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// Ignore the keydown if it was already handled
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event.preventDefault();
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event.stopPropagation();
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return true;
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} else {
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return false;
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}
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};
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/*
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Selectively refreshes the widget if needed. Returns true if the widget needed re-rendering
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*/
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EditShortcutWidget.prototype.refresh = function(changedTiddlers) {
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var changedAttributes = this.computeAttributes();
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if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.index || changedAttributes.placeholder || changedAttributes["default"] || changedAttributes["class"] || changedAttributes.style || changedAttributes.tooltip || changedAttributes["aria-label"]) {
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this.refreshSelf();
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return true;
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} else if(changedTiddlers[this.shortcutTiddler]) {
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this.updateInputNode();
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return true;
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} else {
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return false;
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}
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};
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exports["edit-shortcut"] = EditShortcutWidget;
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})();
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