mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-09 11:29:58 +00:00
342 lines
9.2 KiB
JavaScript
Executable File
342 lines
9.2 KiB
JavaScript
Executable File
/*\
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title: js/WikiStore.js
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\*/
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(function(){
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/*jslint node: true */
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"use strict";
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var Tiddler = require("./Tiddler.js").Tiddler,
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utils = require("./Utils.js"),
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util = require("util");
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/* Creates a new WikiStore object
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Available options are:
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shadowStore: An existing WikiStore to use for shadow tiddler storage. Pass null to prevent a default shadow store from being created
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*/
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var WikiStore = function WikiStore(options) {
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options = options || {};
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this.tiddlers = {};
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this.textProcessors = {};
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this.tiddlerSerializers = {};
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this.tiddlerDeserializers = {};
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this.sandbox = options.sandbox;
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this.shadows = options.shadowStore !== undefined ? options.shadowStore : new WikiStore({
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shadowStore: null
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});
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};
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WikiStore.prototype.registerTextProcessor = function(type,processor) {
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this.textProcessors[type] = processor;
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};
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WikiStore.prototype.registerTiddlerSerializer = function(extension,mimeType,serializer) {
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this.tiddlerSerializers[extension] = serializer;
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this.tiddlerSerializers[mimeType] = serializer;
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};
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WikiStore.prototype.registerTiddlerDeserializer = function(extension,mimeType,deserializer) {
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this.tiddlerDeserializers[extension] = deserializer;
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this.tiddlerDeserializers[mimeType] = deserializer;
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};
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WikiStore.prototype.getTiddler = function(title) {
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var t = this.tiddlers[title];
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if(t instanceof Tiddler) {
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return t;
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} else if(this.shadows) {
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return this.shadows.getTiddler(title);
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} else {
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return null;
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}
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};
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WikiStore.prototype.getTiddlerText = function(title) {
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var t = this.getTiddler(title);
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return t instanceof Tiddler ? t.fields.text : null;
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};
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WikiStore.prototype.deleteTiddler = function(title) {
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delete this.tiddlers[title];
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};
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WikiStore.prototype.tiddlerExists = function(title) {
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var exists = this.tiddlers[title] instanceof Tiddler;
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if(exists) {
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return true;
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} else if (this.shadows) {
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return this.shadows.tiddlerExists(title);
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}
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return ;
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};
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WikiStore.prototype.addTiddler = function(tiddler) {
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this.tiddlers[tiddler.fields.title] = tiddler;
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};
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WikiStore.prototype.forEachTiddler = function(/* [sortField,[excludeTag,]]callback */) {
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var a = 0,
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sortField = arguments.length > 1 ? arguments[a++] : null,
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excludeTag = arguments.length > 2 ? arguments[a++] : null,
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callback = arguments[a++],
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t,tiddlers = [],tiddler;
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if(sortField) {
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for(t in this.tiddlers) {
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tiddlers.push(this.tiddlers[t]);
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}
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tiddlers.sort(function (a,b) {
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var aa = a.fields[sortField] || 0,
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bb = b.fields[sortField] || 0;
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if(aa < bb) {
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return -1;
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} else {
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if(aa > bb) {
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return 1;
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} else {
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return 0;
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}
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}
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});
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for(t=0; t<tiddlers.length; t++) {
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if(!tiddlers[t].hasTag(excludeTag)) {
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callback.call(this,tiddlers[t].fields.title,tiddlers[t]);
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}
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}
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} else {
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for(t in this.tiddlers) {
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tiddler = this.tiddlers[t];
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if(tiddler instanceof Tiddler && !tiddler.hasTag(excludeTag))
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callback.call(this,t,tiddler);
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}
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}
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};
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WikiStore.prototype.getTitles = function(sortField,excludeTag) {
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sortField = sortField || "title";
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var tiddlers = [];
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this.forEachTiddler(sortField,excludeTag,function(title,tiddler) {
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tiddlers.push(title);
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});
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return tiddlers;
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};
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WikiStore.prototype.getMissingTitles = function() {
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return [];
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};
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WikiStore.prototype.getOrphanTitles = function() {
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return [];
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};
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WikiStore.prototype.getShadowTitles = function() {
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return this.shadows ? this.shadows.getTitles() : [];
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};
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WikiStore.prototype.serializeTiddler = function(type,tiddler) {
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var serializer = this.tiddlerSerializers[type];
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if(serializer) {
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return serializer(tiddler);
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} else {
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return null;
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}
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};
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WikiStore.prototype.deserializeTiddlers = function(type,text,srcFields) {
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var fields = {},
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deserializer = this.tiddlerDeserializers[type],
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t;
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if(srcFields) {
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for(t in srcFields) {
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fields[t] = srcFields[t];
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}
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}
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if(deserializer) {
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return deserializer(text,fields);
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} else {
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// Return a raw tiddler for unknown types
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fields.text = text;
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return [fields];
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}
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};
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WikiStore.prototype.getFormattedTiddlerField = function(title,field,format,template) {
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format = format || "text";
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var tiddler = this.getTiddler(title);
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if(tiddler && tiddler.fields[field]) {
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switch(format) {
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case "text":
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return utils.htmlEncode(tiddler.fields[field]);
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case "link":
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// xxx: Attribute encoding is wrong
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return "<a href='" + utils.htmlEncode(tiddler.fields[field]) + "'>" + utils.htmlEncode(tiddler.fields[field]) + "</a>";
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case "wikified":
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return this.renderTiddler("text/html",tiddler.fields.title);
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case "date":
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template = template || "DD MMM YYYY";
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return utils.htmlEncode(utils.formatDateString(tiddler.fields[field],template));
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}
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}
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return "";
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};
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WikiStore.prototype.classesForLink = function(target) {
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return this.tiddlerExists(target) ? "class=\"linkResolves\"" : "";
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};
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WikiStore.prototype.listTiddlers = function(type,template,emptyMessage) {
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return "<span>Listing!</span>";
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};
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/*
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argOptions: {defaultName:"type"},
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handler: function(macroNode,args,title) {
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var type = args.getValueByName("type","all"),
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template = args.getValueByName("template",null),
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templateType = "text/x-tiddlywiki", templateText = "<<view title link>>",
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emptyMessage = args.getValueByName("emptyMessage",null);
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// Get the template to use
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template = template ? this.store.getTiddler(template) : null;
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if(template) {
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templateType = template.fields.type;
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templateText = template.fields.text;
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}
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// Get the handler and the tiddlers
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var handler = WikiTextRenderer.macros.list.types[type];
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handler = handler || WikiTextRenderer.macros.list.types.all;
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var tiddlers = handler.call(this);
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// Render them as a list
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var ul = {type: "ul", children: []};
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for(var t=0; t<tiddlers.length; t++) {
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var li = {
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type: "li",
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children: [ {
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type: "context",
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tiddler: tiddlers[t],
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children: []
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} ]
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};
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li.children[0].children = this.store.parseText(templateType,templateText).children;
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ul.children.push(li);
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}
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if(ul.children.length > 0) {
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macroNode.output.push(ul);
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this.executeMacros(macroNode.output,title);
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} else if (emptyMessage) {
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macroNode.output.push({type: "text", value: emptyMessage});
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}
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},
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types: {
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all: function() {
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return this.store.getTitles("title","excludeLists");
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},
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missing: function() {
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return this.store.getMissingTitles();
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},
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orphans: function() {
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return this.store.getOrphanTitles();
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},
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shadowed: function() {
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return this.store.getShadowTitles();
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},
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touched: function() {
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// Server syncing isn't implemented yet
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return [];
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},
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filter: function() {
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// Filters aren't implemented yet
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return [];
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}
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}
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},
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*/
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WikiStore.prototype.parseText = function(type,text) {
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var processor = this.textProcessors[type];
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if(!processor) {
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processor = this.textProcessors["text/x-tiddlywiki"];
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}
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if(processor) {
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return processor.parse(text);
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} else {
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return null;
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}
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};
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WikiStore.prototype.parseTiddler = function(title) {
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var tiddler = this.getTiddler(title);
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if(tiddler) {
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return this.parseText(tiddler.fields.type,tiddler.fields.text);
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} else {
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return null;
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}
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};
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/*
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Render a tiddler to a particular MIME type. Optionally render it with a different tiddler as the context. This option is used to render a tiddler through a template as store.renderTiddler("text/html",tiddler,template)
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*/
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WikiStore.prototype.renderTiddler = function(type,title,asTitle) {
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var parser = this.parseTiddler(title),
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asTitleExists = asTitle ? this.tiddlerExists(asTitle) : true;
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if(parser && asTitleExists) {
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return parser.render(type,parser.children,this,asTitle ? asTitle : title);
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} else {
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return null;
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}
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};
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WikiStore.prototype.compileTiddler = function(type,title,asTitle) {
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var parser = this.parseTiddler(title),
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asTitleExists = asTitle ? this.tiddlerExists(asTitle) : true;
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if(parser && asTitleExists) {
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return parser.compile(type,parser.children,this,asTitle ? asTitle : title);
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} else {
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return null;
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}
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};
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WikiStore.prototype.installMacros = function() {
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this.macros = {
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echo: {
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params: {
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text: {byPos: 0, type: "text", optional: false}
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},
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code: {
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"text/html": this.sandbox.parse("return '<p>' + utils.htmlEncode(params.text) + '</p>';"),
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"text/plain": this.sandbox.parse("return params.text;")
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}
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},
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view: {
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params: {
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field: {byPos: 0, type: "text", optional: false},
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format: {byPos: 1, type: "text", optional: true},
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template: {byPos: 2, type: "text", optional: true}
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},
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code: {
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"text/html": this.sandbox.parse("return '<span>' + store.getFormattedTiddlerField(tiddler.fields.title,params.field,params.format,params.template) + '</span>';"),
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"text/plain": this.sandbox.parse("return store.getFormattedTiddlerField(tiddler.fields.title,params.field,params.format,params.template);")
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}
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},
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list: {
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params: {
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type: {byName: "default", type: "text", optional: false},
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template: {byName: true, type: "tiddler", optional: true},
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emptyMessage: {byName: true, type: "text", optional: true}
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},
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code: {
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"text/html": this.sandbox.parse("return '<span>' + store.listTiddlers(params.type,params.template,params.emptyMessage) + '</span>';"),
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"text/plain": this.sandbox.parse("return store.listTiddlers(params.type,params.template,params.emptyMessage);")
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}
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}
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};
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};
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exports.WikiStore = WikiStore;
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})();
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