mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-06-25 23:03:15 +00:00
f793816dfa
Useful to be able to reach into plugins. It will enable us to do things like extract readmes from themes that are not active.
108 lines
3.1 KiB
JavaScript
Executable File
108 lines
3.1 KiB
JavaScript
Executable File
/*\
|
|
title: $:/core/modules/widgets/transclude.js
|
|
type: application/javascript
|
|
module-type: widget
|
|
|
|
Transclude widget
|
|
|
|
\*/
|
|
(function(){
|
|
|
|
/*jslint node: true, browser: true */
|
|
/*global $tw: false */
|
|
"use strict";
|
|
|
|
var Widget = require("$:/core/modules/widgets/widget.js").widget;
|
|
|
|
var TranscludeWidget = function(parseTreeNode,options) {
|
|
this.initialise(parseTreeNode,options);
|
|
};
|
|
|
|
/*
|
|
Inherit from the base widget class
|
|
*/
|
|
TranscludeWidget.prototype = new Widget();
|
|
|
|
/*
|
|
Render this widget into the DOM
|
|
*/
|
|
TranscludeWidget.prototype.render = function(parent,nextSibling) {
|
|
this.parentDomNode = parent;
|
|
this.computeAttributes();
|
|
this.execute();
|
|
this.renderChildren(parent,nextSibling);
|
|
};
|
|
|
|
/*
|
|
Compute the internal state of the widget
|
|
*/
|
|
TranscludeWidget.prototype.execute = function() {
|
|
// Get our parameters
|
|
this.transcludeTitle = this.getAttribute("tiddler",this.getVariable("currentTiddler"));
|
|
this.transcludeSubTiddler = this.getAttribute("subtiddler");
|
|
this.transcludeField = this.getAttribute("field");
|
|
this.transcludeIndex = this.getAttribute("index");
|
|
this.transcludeMode = this.getAttribute("mode");
|
|
// Parse the text reference
|
|
var parseAsInline = !this.parseTreeNode.isBlock;
|
|
if(this.transcludeMode === "inline") {
|
|
parseAsInline = true;
|
|
} else if(this.transcludeMode === "block") {
|
|
parseAsInline = false;
|
|
}
|
|
var parser = this.wiki.parseTextReference(
|
|
this.transcludeTitle,
|
|
this.transcludeField,
|
|
this.transcludeIndex,
|
|
{
|
|
parseAsInline: parseAsInline,
|
|
subTiddler: this.transcludeSubTiddler
|
|
}),
|
|
parseTreeNodes = parser ? parser.tree : this.parseTreeNode.children;
|
|
// Set context variables for recursion detection
|
|
var recursionMarker = this.makeRecursionMarker();
|
|
this.setVariable("transclusion",recursionMarker);
|
|
// Check for recursion
|
|
if(parser) {
|
|
if(this.parentWidget && this.parentWidget.hasVariable("transclusion",recursionMarker)) {
|
|
parseTreeNodes = [{type: "text", text: "Recursive transclusion error in transclude widget"}];
|
|
}
|
|
}
|
|
// Construct the child widgets
|
|
this.makeChildWidgets(parseTreeNodes);
|
|
};
|
|
|
|
/*
|
|
Compose a string comprising the title, field and/or index to identify this transclusion for recursion detection
|
|
*/
|
|
TranscludeWidget.prototype.makeRecursionMarker = function() {
|
|
var output = [];
|
|
output.push("{");
|
|
output.push(this.getVariable("currentTiddler",{defaultValue: ""}));
|
|
output.push("|");
|
|
output.push(this.transcludeTitle || "");
|
|
output.push("|");
|
|
output.push(this.transcludeField || "");
|
|
output.push("|");
|
|
output.push(this.transcludeIndex || "");
|
|
output.push("}");
|
|
return output.join("");
|
|
};
|
|
|
|
/*
|
|
Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
|
|
*/
|
|
TranscludeWidget.prototype.refresh = function(changedTiddlers) {
|
|
var changedAttributes = this.computeAttributes();
|
|
if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.index || changedTiddlers[this.transcludeTitle]) {
|
|
this.refreshSelf();
|
|
return true;
|
|
} else {
|
|
return this.refreshChildren(changedTiddlers);
|
|
}
|
|
};
|
|
|
|
exports.transclude = TranscludeWidget;
|
|
|
|
})();
|