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TiddlyWiki5/core/modules/widgets/edit.js

104 lines
3.2 KiB
JavaScript

/*\
title: $:/core/modules/widgets/edit.js
type: application/javascript
module-type: widget
Edit widget is a meta-widget chooses the appropriate actual editting widget
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var Widget = require("$:/core/modules/widgets/widget.js").widget;
var EditWidget = function(parseTreeNode,options) {
this.initialise(parseTreeNode,options);
};
/*
Inherit from the base widget class
*/
EditWidget.prototype = new Widget();
/*
Render this widget into the DOM
*/
EditWidget.prototype.render = function(parent,nextSibling) {
this.parentDomNode = parent;
this.computeAttributes();
this.execute();
this.renderChildren(parent,nextSibling);
};
// Mappings from content type to editor type are stored in tiddlers with this prefix
var EDITOR_MAPPING_PREFIX = "$:/config/EditorTypeMappings/";
/*
Compute the internal state of the widget
*/
EditWidget.prototype.execute = function() {
// Get our parameters
this.editTitle = this.getAttribute("tiddler",this.getVariable("currentTiddler"));
this.editField = this.getAttribute("field","text");
this.editIndex = this.getAttribute("index");
this.editClass = this.getAttribute("class");
this.editPlaceholder = this.getAttribute("placeholder");
this.editTabIndex = this.getAttribute("tabindex");
this.editFocus = this.getAttribute("focus","");
this.editCancelPopups = this.getAttribute("cancelPopups","");
this.editInputActions = this.getAttribute("inputActions");
this.editRefreshTitle = this.getAttribute("refreshTitle");
this.editAutoComplete = this.getAttribute("autocomplete");
// Choose the appropriate edit widget
this.editorType = this.getEditorType();
// Make the child widgets
this.makeChildWidgets([{
type: "edit-" + this.editorType,
attributes: this.parseTreeNode.attributes,
children: this.parseTreeNode.children
}]);
};
EditWidget.prototype.getEditorType = function() {
// Get the content type of the thing we're editing
var type;
if(this.editField === "text") {
var tiddler = this.wiki.getTiddler(this.editTitle);
if(tiddler) {
type = tiddler.fields.type;
}
}
type = type || "text/vnd.tiddlywiki";
var editorType = this.wiki.getTiddlerText(EDITOR_MAPPING_PREFIX + type);
if(!editorType) {
var typeInfo = $tw.config.contentTypeInfo[type];
if(typeInfo && typeInfo.encoding === "base64") {
editorType = "binary";
} else {
editorType = "text";
}
}
return editorType;
};
/*
Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
*/
EditWidget.prototype.refresh = function(changedTiddlers) {
var changedAttributes = this.computeAttributes();
// Refresh if an attribute has changed, or the type associated with the target tiddler has changed
if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.index || changedAttributes.tabindex || changedAttributes.cancelPopups || changedAttributes.inputActions || changedAttributes.refreshTitle || changedAttributes.autocomplete || (changedTiddlers[this.editTitle] && this.getEditorType() !== this.editorType)) {
this.refreshSelf();
return true;
} else {
return this.refreshChildren(changedTiddlers);
}
};
exports.edit = EditWidget;
})();