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Code Issues Releases Wiki Activity

Added polling for changes from the server

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This commit is contained in:
Jeremy Ruston 2012-11-19 13:54:25 +00:00
parent d42e5e1319
commit 6463f972e0
1 changed files with 32 additions and 6 deletions

38
plugins/tiddlywiki/tiddlyweb/tiddlyweb.js

@ -30,6 +30,7 @@ TiddlyWebSyncer.titleUserName = "$:/plugins/tiddlyweb/UserName";
TiddlyWebSyncer.taskTimerInterval = 1 * 1000; // Interval for sync timer
TiddlyWebSyncer.throttleInterval = 1 * 1000; // Defer saving tiddlers if they've changed in the last 1s...
TiddlyWebSyncer.fallbackInterval = 10 * 1000; // Unless the task is older than 10s
TiddlyWebSyncer.pollTimerInterval = 60 * 1000; // Interval for polling for changes on the server
/*
Error handling
@ -60,7 +61,12 @@ TiddlyWebSyncer.prototype.addConnection = function(connection) {
// Get the login status
this.getStatus(function (err,isLoggedIn,json) {
if(isLoggedIn) {
// Do a sync now
self.syncFromServer();
// And every so often
window.setInterval(function() {
self.syncFromServer.call(self);
},TiddlyWebSyncer.pollTimerInterval)
}
});
return ""; // We only support a single connection
@ -211,10 +217,15 @@ TiddlyWebSyncer.prototype.logout = function(options) {
};
/*
Convert a TiddlyWeb JSON tiddler into a TiddlyWiki5 tiddler and save it in the store
Convert a TiddlyWeb JSON tiddler into a TiddlyWiki5 tiddler and save it in the store. Returns true if the tiddler was actually stored
*/
TiddlyWebSyncer.prototype.storeTiddler = function(tiddlerFields,revision) {
var result = {};
var self = this,
result = {};
// Don't update if we've already got this revision
if(this.tiddlerInfo[tiddlerFields.title] && this.tiddlerInfo[tiddlerFields.title].revision === revision) {
return false;
}
// Transfer the fields, pulling down the `fields` hashmap
$tw.utils.each(tiddlerFields,function(element,title,object) {
switch(title) {
@ -235,12 +246,13 @@ TiddlyWebSyncer.prototype.storeTiddler = function(tiddlerFields,revision) {
result.type = "text/vnd.tiddlywiki2";
}
// Save the tiddler
this.wiki.addTiddler(new $tw.Tiddler(result));
self.wiki.addTiddler(new $tw.Tiddler(self.wiki.getTiddler(result.title),result));
// Save the tiddler revision and changeCount details
this.tiddlerInfo[result.title] = {
self.tiddlerInfo[result.title] = {
revision: revision,
changeCount: this.wiki.getChangeCount(result.title)
changeCount: self.wiki.getChangeCount(result.title)
};
return true;
};
/*
@ -251,13 +263,27 @@ TiddlyWebSyncer.prototype.syncFromServer = function() {
this.httpRequest({
url: this.connection.host + "recipes/" + this.connection.recipe + "/tiddlers.json",
callback: function(err,data) {
// Check for errors
if(err) {
console.log("error in syncFromServer",err);
return;
}
// Store the skinny versions of these tiddlers
var json = JSON.parse(data);
for(var t=0; t<json.length; t++) {
self.storeTiddler(json[t],json[t].revision);
var tiddlerFields = json[t];
// Check if the tiddler is already present and not skinny
var tiddler = self.wiki.getTiddler(tiddlerFields.title),
isFat = tiddler && tiddler.fields.text !== undefined;
// Store the tiddler
var wasStored = self.storeTiddler(tiddlerFields,tiddlerFields.revision);
// Load the body of the tiddler if it was already fat, and we actually stored something
if(isFat && wasStored) {
self.enqueueSyncTask({
type: "load",
title: tiddlerFields.title
});
}
}
}
});