mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-09 11:29:58 +00:00
f43e22f8e5
Fixes #98 The excised code was unnecessary, as the rest of the function operates correctly even if the theme tiddler is missing
78 lines
2.4 KiB
JavaScript
78 lines
2.4 KiB
JavaScript
/*\
|
|
title: $:/core/modules/themes.js
|
|
type: application/javascript
|
|
module-type: global
|
|
|
|
Manages themes and styling.
|
|
|
|
\*/
|
|
(function(){
|
|
|
|
/*jslint node: true, browser: true */
|
|
/*global $tw: false */
|
|
"use strict";
|
|
|
|
var THEME_PLUGIN_TITLE = "$:/theme", // This tiddler contains the title of the current theme plugin
|
|
DEFAULT_THEME_PLUGIN = "$:/themes/tiddlywiki/snowwhite";
|
|
|
|
function ThemeManager(wiki) {
|
|
this.wiki = wiki;
|
|
// There's no theme to start with
|
|
this.currentThemeTitle = undefined;
|
|
// Switch to the current theme
|
|
this.switchTheme();
|
|
// Listen for changes to the theme
|
|
var self = this;
|
|
this.wiki.addEventListener("change",function(changes) {
|
|
if($tw.utils.hop(changes,THEME_PLUGIN_TITLE)) {
|
|
self.switchTheme();
|
|
}
|
|
});
|
|
}
|
|
|
|
ThemeManager.prototype.switchTheme = function() {
|
|
// Get the name of the current theme
|
|
var themePluginTitle = this.wiki.getTiddlerText(THEME_PLUGIN_TITLE,DEFAULT_THEME_PLUGIN);
|
|
// Accumulate the titles of the plugins that we need to load
|
|
var themePlugins = [],
|
|
self = this,
|
|
accumulatePlugin = function(title) {
|
|
var tiddler = self.wiki.getTiddler(title);
|
|
if(tiddler && tiddler.isPlugin() && themePlugins.indexOf(title) === -1) {
|
|
themePlugins.push(title);
|
|
var pluginInfo = JSON.parse(self.wiki.getTiddlerText(title));
|
|
$tw.utils.each(pluginInfo.dependents,function(title) {
|
|
accumulatePlugin(title);
|
|
});
|
|
}
|
|
};
|
|
accumulatePlugin(themePluginTitle);
|
|
// Unregister any existing theme tiddlers
|
|
var unregisteredThemeTiddlers = $tw.wiki.unregisterPluginTiddlers("theme");
|
|
// Accumulate the titles of shadow tiddlers that have changed as a result of this switch
|
|
var changedTiddlers = {};
|
|
$tw.utils.each(this.wiki.shadowTiddlers,function(shadowInfo,title) {
|
|
if(unregisteredThemeTiddlers.indexOf(shadowInfo.source) !== -1) {
|
|
changedTiddlers[title] = true; // isDeleted?
|
|
}
|
|
});
|
|
// Register any new theme tiddlers
|
|
var registeredThemeTiddlers = $tw.wiki.registerPluginTiddlers("theme",themePlugins);
|
|
// Unpack the current theme tiddlers
|
|
$tw.wiki.unpackPluginTiddlers();
|
|
// Accumulate the affected shadow tiddlers
|
|
$tw.utils.each(this.wiki.shadowTiddlers,function(shadowInfo,title) {
|
|
if(registeredThemeTiddlers.indexOf(shadowInfo.source) !== -1) {
|
|
changedTiddlers[title] = false; // isDeleted?
|
|
}
|
|
});
|
|
// Issue change events for the modified tiddlers
|
|
$tw.utils.each(changedTiddlers,function(status,title) {
|
|
self.wiki.enqueueTiddlerEvent(title,status);
|
|
});
|
|
};
|
|
|
|
exports.ThemeManager = ThemeManager;
|
|
|
|
})();
|