92 lines
2.8 KiB
JavaScript
92 lines
2.8 KiB
JavaScript
/*\
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title: $:/core/modules/widgets/action-listops.js
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type: application/javascript
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module-type: widget
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Action widget to apply list operations to any tiddler field (defaults to the 'list' field of the current tiddler)
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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 ActionListopsWidget = 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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ActionListopsWidget.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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ActionListopsWidget.prototype.render = function(parent, nextSibling) {
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this.computeAttributes();
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this.execute();
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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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ActionListopsWidget.prototype.execute = function() {
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// Get our parameters
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this.target = this.getAttribute("$tiddler", this.getVariable(
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"currentTiddler"));
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this.filter = this.getAttribute("$filter");
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this.subfilter = this.getAttribute("$subfilter");
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this.listField = this.getAttribute("$field", "list");
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this.listIndex = this.getAttribute("$index");
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this.filtertags = this.getAttribute("$tags");
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};
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/**
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* Refresh the widget by ensuring our attributes are up to date
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*/
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ActionListopsWidget.prototype.refresh = function(changedTiddlers) {
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var changedAttributes = this.computeAttributes();
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if($tw.utils.count(changedAttributes) > 0) {
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this.refreshSelf();
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return true;
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}
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return this.refreshChildren(changedTiddlers);
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};
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/**
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* Invoke the action associated with this widget
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*/
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ActionListopsWidget.prototype.invokeAction = function(triggeringWidget,
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event) {
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//Apply the specified filters to the lists
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var field = this.listField,
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index,
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list = this.listField;
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if(this.listIndex) {
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field = undefined;
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index = this.listIndex;
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list = this.listIndex;
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}
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if(this.filter) {
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this.wiki.setText(this.target, field, index, $tw.utils.stringifyList(
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this.wiki
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.filterTiddlers(this.filter, this)));
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}
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if(this.subfilter) {
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var inputList = this.wiki.getTiddlerList(this.target,field,index),
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subfilter = $tw.utils.stringifyList(inputList) + " " + this.subfilter;
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this.wiki.setText(this.target, field, index, $tw.utils.stringifyList(this.wiki.filterTiddlers(subfilter,this)));
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}
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if(this.filtertags) {
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var tiddler = this.wiki.getTiddler(this.target),
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oldtags = tiddler ? (tiddler.fields.tags || []).slice(0) : [],
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tagfilter = $tw.utils.stringifyList(oldtags) + " " + this.filtertags,
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newtags = this.wiki.filterTiddlers(tagfilter,this);
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if($tw.utils.stringifyList(oldtags.sort()) !== $tw.utils.stringifyList(newtags.sort())) {
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this.wiki.setText(this.target,"tags",undefined,$tw.utils.stringifyList(newtags));
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}
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}
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return true; // Action was invoked
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};
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exports["action-listops"] = ActionListopsWidget;
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})();
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