mirror of
https://github.com/Jermolene/TiddlyWiki5
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103 lines
2.9 KiB
JavaScript
103 lines
2.9 KiB
JavaScript
/*\
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title: $:/core/modules/widgets/edit.js
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type: application/javascript
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module-type: widget
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Edit widget is a meta-widget chooses the appropriate actual editting widget
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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 EditWidget = 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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EditWidget.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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EditWidget.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.renderChildren(parent,nextSibling);
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};
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// Mappings from content type to editor type are stored in tiddlers with this prefix
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var EDITOR_MAPPING_PREFIX = "$:/config/EditorTypeMappings/";
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/*
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Compute the internal state of the widget
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*/
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EditWidget.prototype.execute = function() {
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// Get our parameters
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this.editTitle = this.getAttribute("tiddler",this.getVariable("currentTiddler"));
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this.editField = this.getAttribute("field","text");
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this.editIndex = this.getAttribute("index");
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this.editClass = this.getAttribute("class");
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this.editPlaceholder = this.getAttribute("placeholder");
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// Choose the appropriate edit widget
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this.editorType = this.getEditorType();
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// Make the child widgets
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this.makeChildWidgets([{
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type: "edit-" + this.editorType,
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attributes: {
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tiddler: {type: "string", value: this.editTitle},
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field: {type: "string", value: this.editField},
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index: {type: "string", value: this.editIndex},
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"class": {type: "string", value: this.editClass},
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"placeholder": {type: "string", value: this.editPlaceholder}
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}
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}]);
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};
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EditWidget.prototype.getEditorType = function() {
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// Get the content type of the thing we're editing
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var type;
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if(this.editField === "text") {
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var tiddler = this.wiki.getTiddler(this.editTitle);
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if(tiddler) {
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type = tiddler.fields.type;
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}
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}
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type = type || "text/vnd.tiddlywiki";
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var editorType = this.wiki.getTiddlerText(EDITOR_MAPPING_PREFIX + type);
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if(!editorType) {
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var typeInfo = $tw.config.contentTypeInfo[type];
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if(typeInfo && typeInfo.encoding === "base64") {
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editorType = "binary";
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} else {
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editorType = "text";
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}
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}
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return editorType;
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};
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/*
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Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
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*/
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EditWidget.prototype.refresh = function(changedTiddlers) {
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var changedAttributes = this.computeAttributes();
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// Refresh if an attribute has changed, or the type associated with the target tiddler has changed
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if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.index || (changedTiddlers[this.editTitle] && this.getEditorType() !== this.editorType)) {
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this.refreshSelf();
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return true;
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} else {
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return this.refreshChildren(changedTiddlers);
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}
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};
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exports.edit = EditWidget;
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})();
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