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TiddlyWiki5/core/modules/startup/startup.js
Nicolas Petton b205da2007
Minor cleanup of startup.js (#5409)
* Remove unused var declaration
* Remove trailing whitespaces
2021-01-15 16:55:52 +00:00

142 lines
4.0 KiB
JavaScript
Executable File

/*\
title: $:/core/modules/startup.js
type: application/javascript
module-type: startup
Miscellaneous startup logic for both the client and server.
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
// Export name and synchronous status
exports.name = "startup";
exports.after = ["load-modules"];
exports.synchronous = true;
// Set to `true` to enable performance instrumentation
var PERFORMANCE_INSTRUMENTATION_CONFIG_TITLE = "$:/config/Performance/Instrumentation";
var widget = require("$:/core/modules/widgets/widget.js");
exports.startup = function() {
// Minimal browser detection
if($tw.browser) {
$tw.browser.isIE = (/msie|trident/i.test(navigator.userAgent));
$tw.browser.isFirefox = !!document.mozFullScreenEnabled;
}
// Platform detection
$tw.platform = {};
if($tw.browser) {
$tw.platform.isMac = /Mac/.test(navigator.platform);
$tw.platform.isWindows = /win/i.test(navigator.platform);
$tw.platform.isLinux = /Linux/i.test(navigator.platform);
} else {
switch(require("os").platform()) {
case "darwin":
$tw.platform.isMac = true;
break;
case "win32":
$tw.platform.isWindows = true;
break;
case "freebsd":
$tw.platform.isLinux = true;
break;
case "linux":
$tw.platform.isLinux = true;
break;
}
}
// Initialise version
$tw.version = $tw.utils.extractVersionInfo();
// Set up the performance framework
$tw.perf = new $tw.Performance($tw.wiki.getTiddlerText(PERFORMANCE_INSTRUMENTATION_CONFIG_TITLE,"no") === "yes");
// Create a root widget for attaching event handlers. By using it as the parentWidget for another widget tree, one can reuse the event handlers
$tw.rootWidget = new widget.widget({
type: "widget",
children: []
},{
wiki: $tw.wiki,
document: $tw.browser ? document : $tw.fakeDocument
});
// Execute any startup actions
$tw.rootWidget.invokeActionsByTag("$:/tags/StartupAction");
if($tw.browser) {
$tw.rootWidget.invokeActionsByTag("$:/tags/StartupAction/Browser");
}
if($tw.node) {
$tw.rootWidget.invokeActionsByTag("$:/tags/StartupAction/Node");
}
// Kick off the language manager and switcher
$tw.language = new $tw.Language();
$tw.languageSwitcher = new $tw.PluginSwitcher({
wiki: $tw.wiki,
pluginType: "language",
controllerTitle: "$:/language",
defaultPlugins: [
"$:/languages/en-GB"
],
onSwitch: function(plugins) {
if($tw.browser) {
var pluginTiddler = $tw.wiki.getTiddler(plugins[0]);
if(pluginTiddler) {
document.documentElement.setAttribute("dir",pluginTiddler.getFieldString("text-direction") || "auto");
} else {
document.documentElement.removeAttribute("dir");
}
}
}
});
// Kick off the theme manager
$tw.themeManager = new $tw.PluginSwitcher({
wiki: $tw.wiki,
pluginType: "theme",
controllerTitle: "$:/theme",
defaultPlugins: [
"$:/themes/tiddlywiki/snowwhite",
"$:/themes/tiddlywiki/vanilla"
]
});
// Kick off the keyboard manager
$tw.keyboardManager = new $tw.KeyboardManager();
// Listen for shortcuts
if($tw.browser) {
$tw.utils.addEventListeners(document,[{
name: "keydown",
handlerObject: $tw.keyboardManager,
handlerMethod: "handleKeydownEvent"
}]);
}
// Clear outstanding tiddler store change events to avoid an unnecessary refresh cycle at startup
$tw.wiki.clearTiddlerEventQueue();
// Find a working syncadaptor
$tw.syncadaptor = undefined;
$tw.modules.forEachModuleOfType("syncadaptor",function(title,module) {
if(!$tw.syncadaptor && module.adaptorClass) {
$tw.syncadaptor = new module.adaptorClass({wiki: $tw.wiki});
}
});
// Set up the syncer object if we've got a syncadaptor
if($tw.syncadaptor) {
$tw.syncer = new $tw.Syncer({wiki: $tw.wiki, syncadaptor: $tw.syncadaptor});
}
// Setup the saver handler
$tw.saverHandler = new $tw.SaverHandler({
wiki: $tw.wiki,
dirtyTracking: !$tw.syncadaptor,
preloadDirty: $tw.boot.preloadDirty || []
});
// Host-specific startup
if($tw.browser) {
// Install the popup manager
$tw.popup = new $tw.utils.Popup();
// Install the animator
$tw.anim = new $tw.utils.Animator();
}
};
})();