135 lines
3.8 KiB
JavaScript
135 lines
3.8 KiB
JavaScript
/*\
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title: $:/core/modules/widgets/fieldmangler.js
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type: application/javascript
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module-type: widget
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Field mangler 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 FieldManglerWidget = 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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FieldManglerWidget.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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FieldManglerWidget.prototype.render = function(parent,nextSibling) {
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this.addEventListeners([
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{type: "tm-remove-field", handler: "handleRemoveFieldEvent"},
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{type: "tm-add-field", handler: "handleAddFieldEvent"},
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{type: "tm-remove-tag", handler: "handleRemoveTagEvent"},
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{type: "tm-add-tag", handler: "handleAddTagEvent"}
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]);
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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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/*
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Compute the internal state of the widget
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*/
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FieldManglerWidget.prototype.execute = function() {
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// Get our parameters
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this.mangleTitle = this.getAttribute("tiddler",this.getVariable("currentTiddler"));
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// Construct the child widgets
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this.makeChildWidgets();
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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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FieldManglerWidget.prototype.refresh = function(changedTiddlers) {
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var changedAttributes = this.computeAttributes();
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if(changedAttributes.tiddler) {
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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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FieldManglerWidget.prototype.handleRemoveFieldEvent = function(event) {
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var tiddler = this.wiki.getTiddler(this.mangleTitle),
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deletion = {};
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deletion[event.param] = undefined;
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this.wiki.addTiddler(new $tw.Tiddler(tiddler,deletion));
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return false;
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};
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FieldManglerWidget.prototype.handleAddFieldEvent = function(event) {
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var tiddler = this.wiki.getTiddler(this.mangleTitle),
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addition = this.wiki.getModificationFields(),
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addField = function(name,value) {
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var trimmedName = name.trim();
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if(!value && tiddler) {
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value = tiddler.fields[trimmedName];
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}
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addition[trimmedName] = value || "";
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return;
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};
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addition.title = this.mangleTitle;
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if(typeof event.param === "string") {
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addField(event.param,"");
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}
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if(typeof event.paramObject === "object") {
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for(var name in event.paramObject) {
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addField(name,event.paramObject[name]);
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}
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}
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this.wiki.addTiddler(new $tw.Tiddler(tiddler,addition));
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return false;
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};
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FieldManglerWidget.prototype.handleRemoveTagEvent = function(event) {
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var tiddler = this.wiki.getTiddler(this.mangleTitle),
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modification = this.wiki.getModificationFields();
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if(tiddler && tiddler.fields.tags) {
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var p = tiddler.fields.tags.indexOf(event.param);
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if(p !== -1) {
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modification.tags = (tiddler.fields.tags || []).slice(0);
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modification.tags.splice(p,1);
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if(modification.tags.length === 0) {
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modification.tags = undefined;
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}
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this.wiki.addTiddler(new $tw.Tiddler(tiddler,modification));
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}
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}
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return false;
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};
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FieldManglerWidget.prototype.handleAddTagEvent = function(event) {
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var tiddler = this.wiki.getTiddler(this.mangleTitle),
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modification = this.wiki.getModificationFields();
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if(tiddler && typeof event.param === "string") {
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var tag = event.param.trim();
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if(tag !== "") {
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modification.tags = (tiddler.fields.tags || []).slice(0);
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$tw.utils.pushTop(modification.tags,tag);
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this.wiki.addTiddler(new $tw.Tiddler(tiddler,modification));
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}
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} else if(typeof event.param === "string" && event.param.trim() !== "" && this.mangleTitle.trim() !== "") {
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var tag = [];
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tag.push(event.param.trim());
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this.wiki.addTiddler(new $tw.Tiddler({title: this.mangleTitle, tags: tag},modification));
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}
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return false;
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};
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exports.fieldmangler = FieldManglerWidget;
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})();
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