mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2025-10-31 15:42:59 +00:00
87 lines
2.7 KiB
JavaScript
87 lines
2.7 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_PLUGINS = [
|
|
"$:/themes/tiddlywiki/snowwhite",
|
|
"$:/themes/tiddlywiki/vanilla"
|
|
];
|
|
|
|
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);
|
|
// If it doesn't exist, then fallback to one of the default themes
|
|
var index = 0;
|
|
while(!this.wiki.getTiddler(themePluginTitle) && index < DEFAULT_THEME_PLUGINS.length) {
|
|
themePluginTitle = DEFAULT_THEME_PLUGINS[index++];
|
|
}
|
|
// 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)),
|
|
dependents = $tw.utils.parseStringArray(tiddler.fields.dependents || "");
|
|
$tw.utils.each(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;
|
|
|
|
})();
|