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TiddlyWiki5/plugins/tiddlywiki/browser-storage/startup.js
fkmiec 005dfdadf0
Automatic sync of tiddler changes in browser storage when sync connection is re-established (#7169)
* Add automatic sync of tiddler changes in browswer-storage on restoration of server connection in tiddlywebadaptor

* Fix issue with new tiddlers not being synced.

* Fix issue with new tiddlers not being synced.

* Added logging

* Modified browser-storage plugin. Refactored into utility class.

* Modified browser-storage plugin. Refactored into utility class.

* Fix: browser storage config tiddler created on load only if not already exists

* Fix: Removed extra indent in util.js
2023-01-17 22:12:18 +00:00

86 lines
2.5 KiB
JavaScript

/*\
title: $:/plugins/tiddlywiki/browser-storage/startup.js
type: application/javascript
module-type: startup
Startup initialisation
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
// Export name and synchronous status
exports.name = "browser-storage";
exports.platforms = ["browser"];
exports.after = ["startup"];
exports.synchronous = true;
var ENABLED_TITLE = "$:/config/BrowserStorage/Enabled",
SAVE_FILTER_TITLE = "$:/config/BrowserStorage/SaveFilter";
var BrowserStorageUtil = require("$:/plugins/tiddlywiki/browser-storage/util.js").BrowserStorageUtil;
exports.startup = function() {
var self = this;
// If not exists, add ENABLED tiddler with default value "yes"
if(!$tw.wiki.getTiddler(ENABLED_TITLE)) {
$tw.wiki.addTiddler({title: ENABLED_TITLE, text: "yes"});
}
// Compute our prefix for local storage keys
var prefix = "tw5#" + window.location.pathname + "#";
// Make a logger
var logger = new $tw.utils.Logger("browser-storage",{
colour: "cyan"
});
// Add browserStorage object to $tw
$tw.browserStorage = new BrowserStorageUtil($tw.wiki,{
enabledTitle: ENABLED_TITLE,
prefix: prefix,
logger: logger
});
// Function to compile the filter
var filterFn,
compileFilter = function() {
filterFn = $tw.wiki.compileFilter($tw.wiki.getTiddlerText(SAVE_FILTER_TITLE));
}
compileFilter();
// Listen for tm-clear-browser-storage messages
$tw.rootWidget.addEventListener("tm-clear-browser-storage",function(event) {
$tw.wiki.addTiddler({title: ENABLED_TITLE, text: "no"});
$tw.browserStorage.clearLocalStorage();
});
// Track tiddler changes
$tw.wiki.addEventListener("change",function(changes) {
// Bail if browser storage is disabled
if($tw.wiki.getTiddlerText(ENABLED_TITLE) === "no") {
return;
}
// Recompile the filter if it has changed
if(changes[SAVE_FILTER_TITLE]) {
compileFilter();
}
// Filter the changes
var filteredChanges = filterFn.call($tw.wiki,function(iterator) {
$tw.utils.each(changes,function(change,title) {
var tiddler = $tw.wiki.getTiddler(title);
iterator(tiddler,title);
});
});
$tw.utils.each(filteredChanges,function(title) {
// Don't try to save changes to our enabled status
// (If it were enabled in the file but disabled in local storage then we might not realise that distributing a copy of the file would have local storage enabled for other users)
if(title === ENABLED_TITLE) {
return;
}
// Save the tiddler
$tw.browserStorage.saveTiddlerToLocalStorage(title);
});
});
};
})();