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TiddlyWiki5/js/WikiStore.js

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/*jslint node: true */
"use strict";
var Tiddler = require("./Tiddler.js").Tiddler,
util = require("util");
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var WikiStore = function WikiStore(shadowStore) {
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this.tiddlers = {};
this.shadows = shadowStore === undefined ? new WikiStore(null) : shadowStore;
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};
WikiStore.prototype.clear = function() {
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this.tiddlers = {};
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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) {
return t;
} else if(this.shadows) {
return this.shadows.getTiddler(title);
} else {
return null;
}
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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;
};
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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return this.tiddlers[title] instanceof Tiddler;
};
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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(callback) {
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var t;
for(t in this.tiddlers) {
var tiddler = this.tiddlers[t];
if(tiddler instanceof Tiddler)
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callback.call(this,t,tiddler);
}
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};
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exports.WikiStore = WikiStore;