First pass at language plugins for internationalisation

Still quite a few details to work out, but this shows the basic idea of
re-using the theme mechanism to handle language plugins.

Comments and questions welcome.

boot/boot.js

@@ -1291,6 +1291,9 @@ $tw.boot.defaultWikiInfo = {
 	"themes": [
 		"tiddlywiki/vanilla",
 		"tiddlywiki/snowwhite"
+	],
+	"languages": [
+		"en-GB"
 	]
 };
 
@@ -1342,6 +1345,16 @@ $tw.loadWikiTiddlers = function(wikiPath,parentPaths) {
 			}
 		}
 	}
+	// Load any languages listed in the wiki info file
+	if(wikiInfo.languages) {
+		var languagesBasePath = path.resolve($tw.boot.corePath,$tw.config.languagesPath);
+		for(var t=0; t<wikiInfo.languages.length; t++) {
+			pluginFields = $tw.loadPluginFolder(path.resolve(languagesBasePath,"./" + wikiInfo.languages[t]));
+			if(pluginFields) {
+				$tw.wiki.addTiddler(pluginFields);
+			}
+		}
+	}
 	// Load the wiki files, registering them as writable
 	var resolvedWikiPath = path.resolve(wikiPath,$tw.config.wikiTiddlersSubDir);
 	$tw.utils.each($tw.loadTiddlersFromPath(resolvedWikiPath),function(tiddlerFile) {
@@ -1380,6 +1393,17 @@ $tw.loadWikiTiddlers = function(wikiPath,parentPaths) {
 			}
 		}
 	}
+	// Load any languages within the wiki folder
+	var wikiLanguagesPath = path.resolve(wikiPath,$tw.config.wikiLanguagesSubDir);
+	if(fs.existsSync(wikiLanguagesPath)) {
+		var languageFolders = fs.readdirSync(wikiLanguagesPath);
+		for(t=0; t<languageFolders.length; t++) {
+			pluginFields = $tw.loadPluginFolder(path.resolve(wikiLanguagesPath,"./" + languageFolders[t]));
+			if(pluginFields) {
+				$tw.wiki.addTiddler(pluginFields);
+			}
+		}
+	}
 	return wikiInfo;
 };
 
@@ -1416,9 +1440,11 @@ $tw.boot.startup = function(options) {
 		config: { // Configuration overridables
 			pluginsPath: "../plugins/",
 			themesPath: "../themes/",
+			languagesPath: "../languages/",
 			wikiInfo: "./tiddlywiki.info",
 			wikiPluginsSubDir: "./plugins",
 			wikiThemesSubDir: "./themes",
+			wikiLanguagesSubDir: "./languages",
 			wikiTiddlersSubDir: "./tiddlers",
 			jsModuleHeaderRegExpString: "^\\/\\*\\\\(?:\\r?\\n)((?:^[^\\r\\n]*(?:\\r?\\n))+?)(^\\\\\\*\\/$(?:\\r?\\n)?)",
 			fileExtensionInfo: {}, // Map file extension to {type:}
@@ -1532,6 +1558,3 @@ if(typeof(exports) !== "undefined") {
 } else {
 	_boot(window.$tw);
 }
-
-
-

core/modules/startup.js

@@ -38,6 +38,15 @@ exports.startup = function() {
 	$tw.syncer = new $tw.Syncer({wiki: $tw.wiki});
 	// Set up the command modules
 	$tw.Commander.initCommands();
+	// Kick off the language manager
+	$tw.languageManager = new $tw.PluginSwitcher({
+		wiki: $tw.wiki,
+		pluginType: "language",
+		controllerTitle: "$:/language",
+		defaultPlugins: [
+			"$:/languages/en-US"
+		]
+	});
 	// Kick off the theme manager
 	$tw.themeManager = new $tw.PluginSwitcher({
 		wiki: $tw.wiki,

core/ui/ControlPanel/Basics.tid

@@ -8,6 +8,7 @@ caption: Basics
 |[[Username for signing edits|$:/status/UserName]] |<$edit-text tiddler="$:/status/UserName" default="" tag="input"/> |
 |[[Animation duration|$:/config/AnimationDuration]] |<$edit-text tiddler="$:/config/AnimationDuration" default="" tag="input"/> |
 |[[DefaultTiddlers|$:/DefaultTiddlers]] |Choose which tiddlers are displayed at startup:<br> <$edit-text tag="textarea" tiddler="$:/DefaultTiddlers"/><br>//Use &#91;&#91;double square brackets&#93;&#93; for titles with spaces. Or you can choose to <$button set="$:/DefaultTiddlers" setTo="[list[$:/StoryList]]">retain story ordering</$button>// |
+|{{$:/lingo/ControlPanel/Language/prompt}} |{{$:/snippets/minilanguageswitcher}} |
 |Tiddlers |''<$count filter="[!is[system]]"/>'' |
 |Tags |''<$count filter="[tags[]]"/>'' |
 |System tiddlers |''<$count filter="[is[system]]"/>'' |

core/ui/SideBar/Tools.tid

@@ -2,18 +2,6 @@ title: $:/core/ui/SideBar/Tools
 tags: $:/tags/SideBar
 caption: Tools
 
-{{$:/snippets/viewswitcher}}
-
----
-
-[[AdvancedSearch|$:/AdvancedSearch]]
-
----
-
-{{$:/snippets/minithemeswitcher}}
-
----
-
 Import: <$browse/>
 
 ---
@@ -23,3 +11,15 @@ Import: <$browse/>
 ---
 
 TiddlyWiki5 version <<version>>
+
+---
+
+{{$:/snippets/viewswitcher}}
+
+---
+
+{{$:/snippets/minithemeswitcher}}
+
+---
+
+{{$:/snippets/languageswitcher}}

core/wiki/languageswitcher.tid

@@ -0,0 +1,8 @@
+title: $:/snippets/languageswitcher
+
+{{$:/lingo/ControlPanel/Language/prompt}} <$view tiddler={{$:/language}} field="description" format="text"><$view tiddler={{$:/language}} field="name" format="text"><$view tiddler={{$:/language}} field="title" format="text"/></$view></$view>
+
+<$linkcatcher to="$:/language">
+<$list filter="[plugin-type[language]sort[title]]"><div><$reveal state="$:/language" type="match" text={{!!title}}>&bull;</$reveal><$reveal state="$:/language" type="nomatch" text={{!!title}}>&nbsp;</$reveal> <$link to={{!!title}}><$view field="description" format="text"><$view field="name" format="text"><$view field="title" format="text"/></$view></$view></$link></div>
+</$list>
+</$linkcatcher>

core/wiki/minilanguageswitcher.tid

@@ -0,0 +1,6 @@
+title: $:/snippets/minilanguageswitcher
+
+<$linkcatcher to="$:/language">
+<$list filter="[plugin-type[language]sort[title]]"><div><$reveal state="$:/language" type="match" text={{!!title}}>&bull;</$reveal><$reveal state="$:/language" type="nomatch" text={{!!title}}>&nbsp;</$reveal> <$link to={{!!title}}><$view field="description" format="text"><$view field="name" format="text"><$view field="title" format="text"/></$view></$view></$link></div>
+</$list>
+</$linkcatcher>

editions/tw5.com/tiddlers/system/language.tid

@@ -0,0 +1,3 @@
+title: $:/language
+
+$:/languages/en-GB

editions/tw5.com/tiddlywiki.info

@@ -16,5 +16,11 @@
 		"giffmex/rocker",
 		"giffmex/blue",
 		"giffmex/blanca"
+	],
+	"languages": [
+		"en-US",
+		"en-GB",
+		"de-AT",
+		"fr-FR"
 	]
 }

languages/de-AT/languageprompt.tid

@@ -0,0 +1,3 @@
+title: $:/lingo/ControlPanel/Language/prompt
+
+Hallo! Aktuelle Sprache:

languages/de-AT/plugin.info

@@ -0,0 +1,8 @@
+{
+	"title": "$:/languages/de-AT",
+	"name": "de-AT",
+	"plugin-type": "language",
+	"description": "German (Austria)",
+	"author": "JeremyRuston",
+	"core-version": ">=5.0.0"
+}

languages/en-GB/languageprompt.tid

@@ -0,0 +1,3 @@
+title: $:/lingo/ControlPanel/Language/prompt
+
+Hello! Current language:

languages/en-GB/plugin.info

@@ -0,0 +1,8 @@
+{
+	"title": "$:/languages/en-GB",
+	"name": "en-GB",
+	"plugin-type": "language",
+	"description": "English (British)",
+	"author": "JeremyRuston",
+	"core-version": ">=5.0.0"
+}

languages/en-US/languageprompt.tid

@@ -0,0 +1,3 @@
+title: $:/lingo/ControlPanel/Language/prompt
+
+Hiya! Current language:

languages/en-US/plugin.info

@@ -0,0 +1,9 @@
+{
+	"title": "$:/languages/en-US",
+	"name": "en-US",
+	"plugin-type": "language",
+	"description": "English (US)",
+	"author": "JeremyRuston",
+	"core-version": ">=5.0.0",
+	"dependents": ["$:/languages/en-GB"]
+}

languages/fr-FR/languageprompt.tid

@@ -0,0 +1,3 @@
+title: $:/lingo/ControlPanel/Language/prompt
+
+Bonjour! Langage courant:

languages/fr-FR/plugin.info

@@ -0,0 +1,8 @@
+{
+	"title": "$:/languages/fr-FR",
+	"name": "fr-FR",
+	"plugin-type": "language",
+	"description": "French (France)",
+	"author": "JeremyRuston",
+	"core-version": ">=5.0.0"
+}