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mirror of https://github.com/Jermolene/TiddlyWiki5 synced 2024-10-31 23:26:18 +00:00
TiddlyWiki5/core/modules/pluginswitcher.js
Jermolene e20bce5450 Add experimental support for RTL languages
This commit permits language plugins to carry the field
“text-direction” with the value “rtl” to trigger right-to-left layout
of the entire page. We also adjust the sidebar layout to work in RTL
mode.

There are still a number of problems to be addressed:

* Brackets and other punctuation incorrectly placed within en-GB UI text
* System tiddler titles are rendered semi-back-to-front (eg
`languages/ca-ES/:$`)

Starting to address #1845 and the discussion in #2523.
2016-08-15 19:47:26 +01:00

78 lines
2.4 KiB
JavaScript

/*\
title: $:/core/modules/pluginswitcher.js
type: application/javascript
module-type: global
Manages switching plugins for themes and languages.
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
/*
options:
wiki: wiki store to be used
pluginType: type of plugin to be switched
controllerTitle: title of tiddler used to control switching of this resource
defaultPlugins: array of default plugins to be used if nominated plugin isn't found
onSwitch: callback when plugin is switched (single parameter is array of plugin titles)
*/
function PluginSwitcher(options) {
this.wiki = options.wiki;
this.pluginType = options.pluginType;
this.controllerTitle = options.controllerTitle;
this.defaultPlugins = options.defaultPlugins || [];
this.onSwitch = options.onSwitch;
// Switch to the current plugin
this.switchPlugins();
// Listen for changes to the selected plugin
var self = this;
this.wiki.addEventListener("change",function(changes) {
if($tw.utils.hop(changes,self.controllerTitle)) {
self.switchPlugins();
}
});
}
PluginSwitcher.prototype.switchPlugins = function() {
// Get the name of the current theme
var selectedPluginTitle = this.wiki.getTiddlerText(this.controllerTitle);
// If it doesn't exist, then fallback to one of the default themes
var index = 0;
while(!this.wiki.getTiddler(selectedPluginTitle) && index < this.defaultPlugins.length) {
selectedPluginTitle = this.defaultPlugins[index++];
}
// Accumulate the titles of the plugins that we need to load
var plugins = [],
self = this,
accumulatePlugin = function(title) {
var tiddler = self.wiki.getTiddler(title);
if(tiddler && tiddler.isPlugin() && plugins.indexOf(title) === -1) {
plugins.push(title);
var pluginInfo = JSON.parse(self.wiki.getTiddlerText(title)),
dependents = $tw.utils.parseStringArray(tiddler.fields.dependents || "");
$tw.utils.each(dependents,function(title) {
accumulatePlugin(title);
});
}
};
accumulatePlugin(selectedPluginTitle);
// Unregister any existing theme tiddlers
var unregisteredTiddlers = $tw.wiki.unregisterPluginTiddlers(this.pluginType);
// Register any new theme tiddlers
var registeredTiddlers = $tw.wiki.registerPluginTiddlers(this.pluginType,plugins);
// Unpack the current theme tiddlers
$tw.wiki.unpackPluginTiddlers();
// Call the switch handler
if(this.onSwitch) {
this.onSwitch(plugins);
}
};
exports.PluginSwitcher = PluginSwitcher;
})();