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TiddlyWiki5/core/modules/widgets/parameters.js
Cameron Fischer 352272905e
Fixed issue where $parameters did nothing with no $transclude (#8203)
* Fixed issue where $parameters did nothing with no $transclude

* Figured I should test \parameters too
2024-06-06 11:20:35 +01:00

109 lines
2.9 KiB
JavaScript

/*\
title: $:/core/modules/widgets/parameters.js
type: application/javascript
module-type: widget
Widget for definition of transclusion parameters
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var Widget = require("$:/core/modules/widgets/widget.js").widget,
TranscludeWidget = require("$:/core/modules/widgets/transclude.js").transclude;
var ParametersWidget = function(parseTreeNode,options) {
// Initialise
this.initialise(parseTreeNode,options);
};
/*
Inherit from the base widget class
*/
ParametersWidget.prototype = new Widget();
/*
Render this widget into the DOM
*/
ParametersWidget.prototype.render = function(parent,nextSibling) {
// Call the constructor
Widget.call(this);
this.parentDomNode = parent;
this.computeAttributes();
this.execute();
this.renderChildren(parent,nextSibling);
};
/*
Compute the internal state of the widget
*/
ParametersWidget.prototype.execute = function() {
var self = this;
this.parametersDepth = Math.max(parseInt(this.getAttribute("$depth","1"),10) || 1,1);
// Find the parent transclusions
var pointer = this.parentWidget,
depth = this.parametersDepth;
while(pointer) {
if(pointer instanceof TranscludeWidget) {
depth--;
if(depth <= 0) {
break;
}
}
pointer = pointer.parentWidget;
}
// Process each parameter
if(pointer instanceof TranscludeWidget) {
// Get the value for each defined parameter
$tw.utils.each($tw.utils.getOrderedAttributesFromParseTreeNode(self.parseTreeNode),function(attr,index) {
var name = attr.name;
// If the attribute name starts with $$ then reduce to a single dollar
if(name.substr(0,2) === "$$") {
name = name.substr(1);
}
var value = pointer.getTransclusionParameter(name,index,self.getAttribute(attr.name,""));
self.setVariable(name,value);
});
// Assign any metaparameters
$tw.utils.each(pointer.getTransclusionMetaParameters(),function(getValue,name) {
var variableName = self.getAttribute("$" + name);
if(variableName) {
self.setVariable(variableName,getValue(name));
}
});
} else {
// There is no parent transclude. i.e. direct rendering.
// We use default values only.
$tw.utils.each($tw.utils.getOrderedAttributesFromParseTreeNode(self.parseTreeNode),function(attr,index) {
var name = attr.name;
// If the attribute name starts with $$ then reduce to a single dollar
if(name.substr(0,2) === "$$") {
name = name.substr(1);
}
var value = self.getAttribute(attr.name,"");
self.setVariable(name,value);
});
}
// Construct the child widgets
this.makeChildWidgets();
};
/*
Refresh the widget by ensuring our attributes are up to date
*/
ParametersWidget.prototype.refresh = function(changedTiddlers) {
var changedAttributes = this.computeAttributes();
if(Object.keys(changedAttributes).length) {
this.refreshSelf();
return true;
}
return this.refreshChildren(changedTiddlers);
};
exports.parameters = ParametersWidget;
})();