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Code Issues Releases Wiki Activity

Move the cache from the Tiddler object to the WikiStore

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It's not really a concern of the Tiddler object
This commit is contained in:
Jeremy Ruston 2012-01-17 13:31:06 +00:00
parent b898afe3e5
commit bd17a389cb
2 changed files with 41 additions and 31 deletions
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1
js/Tiddler.js
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@ -21,7 +21,6 @@ var utils = require("./Utils.js"),
ArgParser = require("./ArgParser.js").ArgParser;
var Tiddler = function(/* tiddler,fields */) {
this.cache = {}; // Expose the cache object
var fields = {}, // Keep the fields private, later we'll expose getters for them
tags, // Keep the tags separately because they're the only Array field
f,t,c,arg,src;

71
js/WikiStore.js
View File

@ -23,15 +23,15 @@ Available options are:
*/
var WikiStore = function WikiStore(options) {
options = options || {};
this.tiddlers = {};
this.parsers = {};
this.macros = {};
this.tiddlerSerializers = {};
this.tiddlerDeserializers = {};
this.tiddlers = {}; // Hashmap of tiddlers by title
this.parsers = {}; // Hashmap of parsers by accepted MIME type
this.macros = {}; // Hashmap of macros by macro name
this.caches = {}; // Hashmap of cache objects by tiddler title, each is a hashmap of named caches
this.tiddlerSerializers = {}; // Hashmap of serializers by target MIME type
this.tiddlerDeserializers = {}; // Hashmap of deserializers by accepted MIME type
this.eventListeners = []; // Array of {filter:,listener:}
this.eventsTriggered = false;
this.changedTiddlers = {}; // Hashmap of {title: "created|modified|deleted"}
this.sandbox = options.sandbox;
this.shadows = options.shadowStore !== undefined ? options.shadowStore : new WikiStore({
shadowStore: null
});
@ -264,6 +264,21 @@ WikiStore.prototype.adjustClassesForLink = function(classes,target) {
return newClasses;
};
// Return the named cache object for a tiddler. If the cache doesn't exist then the initializer function is invoked to create it
WikiStore.prototype.getCacheForTiddler = function(title,cacheName,initializer) {
var caches = this.caches[title];
if(caches && caches[cacheName]) {
return caches[cacheName];
} else {
if(!caches) {
caches = {};
this.caches[title] = caches;
}
caches[cacheName] = initializer();
return caches[cacheName];
}
};
WikiStore.prototype.parseText = function(type,text) {
var parser = this.parsers[type];
if(!parser) {
@ -277,16 +292,12 @@ WikiStore.prototype.parseText = function(type,text) {
};
WikiStore.prototype.parseTiddler = function(title) {
var tiddler = this.getTiddler(title);
if(tiddler) {
// Check the cache
if(!tiddler.cache.parseTree) {
tiddler.cache.parseTree = this.parseText(tiddler.type,tiddler.text);
}
return tiddler.cache.parseTree;
} else {
return null;
}
var me = this,
tiddler = this.getTiddler(title),
parseTree = this.getCacheForTiddler(title,"parseTree",function() {
return me.parseText(tiddler.type,tiddler.text);
});
return parseTree;
};
/*
@ -303,16 +314,16 @@ Compiles a JavaScript function that renders a tiddler in a particular MIME type
*/
WikiStore.prototype.compileTiddler = function(title,type) {
/*jslint evil: true */
var tiddler = this.getTiddler(title);
var tiddler = this.getTiddler(title),
renderers = this.getCacheForTiddler(title,"renderers",function() {
return {};
});
if(tiddler) {
if(!tiddler.cache.renderers) {
tiddler.cache.renderers = {};
}
if(!tiddler.cache.renderers[type]) {
if(!renderers[type]) {
var tree = this.parseTiddler(title);
tiddler.cache.renderers[type] = eval(tree.compile(type));
renderers[type] = eval(tree.compile(type));
}
return tiddler.cache.renderers[type];
return renderers[type];
} else {
return null;
}
@ -334,19 +345,19 @@ store.renderTiddler("text/html",templateTitle,tiddlerTitle)
*/
WikiStore.prototype.renderTiddler = function(targetType,title,asTitle) {
var tiddler = this.getTiddler(title),
fn = this.compileTiddler(title,targetType);
fn = this.compileTiddler(title,targetType),
renditions = this.getCacheForTiddler(title,"renditions",function() {
return {};
});
if(tiddler) {
if(asTitle) {
var asTiddler = this.getTiddler(asTitle);
return fn(asTiddler,this,utils);
} else {
if(!tiddler.cache.renditions) {
tiddler.cache.renditions = {};
if(!renditions[targetType]) {
renditions[targetType] = fn(tiddler,this,utils);
}
if(!tiddler.cache.renditions[targetType]) {
tiddler.cache.renditions[targetType] = fn(tiddler,this,utils);
}
return tiddler.cache.renditions[targetType];
return renditions[targetType];
}
}
return null;