mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-08-25 11:06:45 +00:00
296 lines
9.3 KiB
JavaScript
Executable File
296 lines
9.3 KiB
JavaScript
Executable File
/*\
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title: $:/core/modules/startup.js
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type: application/javascript
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module-type: startup
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This is the main application logic for both the client and server
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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// Export name and synchronous status
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exports.name = "startup";
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exports.after = ["load-modules"];
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exports.synchronous = true;
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// Set to `true` to enable performance instrumentation
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var PERFORMANCE_INSTRUMENTATION = false;
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// Time (in ms) that we defer refreshing changes to draft tiddlers
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var DRAFT_TIDDLER_TIMEOUT = 400;
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// Default story and history lists
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var DEFAULT_STORY_TITLE = "$:/StoryList";
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var DEFAULT_HISTORY_TITLE = "$:/HistoryList";
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// Default tiddlers
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var DEFAULT_TIDDLERS_TITLE = "$:/DefaultTiddlers";
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// Favicon tiddler
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var FAVICON_TITLE = "$:/favicon.ico";
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var widget = require("$:/core/modules/widgets/widget.js");
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exports.startup = function() {
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var modules,n,m,f,commander;
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if($tw.browser) {
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$tw.browser.isIE = (/msie|trident/i.test(navigator.userAgent));
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}
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$tw.version = $tw.utils.extractVersionInfo();
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// Set up the performance framework
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$tw.perf = new $tw.Performance(PERFORMANCE_INSTRUMENTATION);
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// Kick off the language manager and switcher
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$tw.language = new $tw.Language();
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$tw.languageSwitcher = new $tw.PluginSwitcher({
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wiki: $tw.wiki,
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pluginType: "language",
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controllerTitle: "$:/language",
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defaultPlugins: [
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"$:/languages/en-US"
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]
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});
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// Kick off the theme manager
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$tw.themeManager = new $tw.PluginSwitcher({
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wiki: $tw.wiki,
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pluginType: "theme",
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controllerTitle: "$:/theme",
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defaultPlugins: [
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"$:/themes/tiddlywiki/snowwhite",
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"$:/themes/tiddlywiki/vanilla"
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]
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});
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// Clear outstanding tiddler store change events to avoid an unnecessary refresh cycle at startup
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$tw.wiki.clearTiddlerEventQueue();
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// Open startup tiddlers
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openStartupTiddlers();
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// Set up the syncer object
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$tw.syncer = new $tw.Syncer({wiki: $tw.wiki});
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// Host-specific startup
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if($tw.browser) {
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// Set up our beforeunload handler
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window.addEventListener("beforeunload",function(event) {
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var confirmationMessage = undefined;
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if($tw.syncer.isDirty()) {
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confirmationMessage = "You have unsaved changes in TiddlyWiki";
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event.returnValue = confirmationMessage; // Gecko
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}
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return confirmationMessage;
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});
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// Install the popup manager
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$tw.popup = new $tw.utils.Popup({
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rootElement: document.body
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});
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// Install the animator
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$tw.anim = new $tw.utils.Animator();
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// Create a root widget for attaching event handlers. By using it as the parentWidget for another widget tree, one can reuse the event handlers
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$tw.rootWidget = new widget.widget({
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type: "widget",
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children: []
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},{
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wiki: $tw.wiki,
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document: document
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});
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// Install the modal message mechanism
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$tw.modal = new $tw.utils.Modal($tw.wiki);
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$tw.rootWidget.addEventListener("tw-modal",function(event) {
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$tw.modal.display(event.param);
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});
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// Install the notification mechanism
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$tw.notifier = new $tw.utils.Notifier($tw.wiki);
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$tw.rootWidget.addEventListener("tw-notify",function(event) {
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$tw.notifier.display(event.param);
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});
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// Install the scroller
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$tw.pageScroller = new $tw.utils.PageScroller();
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$tw.rootWidget.addEventListener("tw-scroll",function(event) {
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$tw.pageScroller.handleEvent(event);
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});
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// Listen for the tw-home message
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$tw.rootWidget.addEventListener("tw-home",function(event) {
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displayDefaultTiddlers();
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});
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// Install the save action handlers
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$tw.rootWidget.addEventListener("tw-save-wiki",function(event) {
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$tw.syncer.saveWiki({
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template: event.param,
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downloadType: "text/plain"
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});
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});
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$tw.rootWidget.addEventListener("tw-auto-save-wiki",function(event) {
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$tw.syncer.saveWiki({
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method: "autosave",
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template: event.param,
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downloadType: "text/plain"
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});
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});
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$tw.rootWidget.addEventListener("tw-download-file",function(event) {
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$tw.syncer.saveWiki({
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method: "download",
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template: event.param,
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downloadType: "text/plain"
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});
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});
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// Listen out for login/logout/refresh events in the browser
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$tw.rootWidget.addEventListener("tw-login",function() {
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$tw.syncer.handleLoginEvent();
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});
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$tw.rootWidget.addEventListener("tw-logout",function() {
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$tw.syncer.handleLogoutEvent();
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});
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$tw.rootWidget.addEventListener("tw-server-refresh",function() {
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$tw.syncer.handleRefreshEvent();
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});
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// Install the crypto event handlers
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$tw.rootWidget.addEventListener("tw-set-password",function(event) {
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$tw.passwordPrompt.createPrompt({
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serviceName: "Set a new password for this TiddlyWiki",
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noUserName: true,
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submitText: "Set password",
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canCancel: true,
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callback: function(data) {
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if(data) {
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$tw.crypto.setPassword(data.password);
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}
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return true; // Get rid of the password prompt
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}
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});
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});
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$tw.rootWidget.addEventListener("tw-clear-password",function(event) {
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$tw.crypto.setPassword(null);
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});
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// Ensure that $:/isEncrypted is maintained properly
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$tw.wiki.addEventListener("change",function(changes) {
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if($tw.utils.hop(changes,"$:/isEncrypted")) {
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$tw.crypto.updateCryptoStateTiddler();
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}
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});
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// Set up the favicon
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var faviconLink = document.getElementById("faviconLink"),
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setFavicon = function() {
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var tiddler = $tw.wiki.getTiddler(FAVICON_TITLE);
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if(tiddler) {
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faviconLink.setAttribute("href","data:" + tiddler.fields.type + ";base64," + tiddler.fields.text);
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}
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};
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setFavicon();
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$tw.wiki.addEventListener("change",function(changes) {
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if($tw.utils.hop(changes,FAVICON_TITLE)) {
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setFavicon();
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}
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});
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// Set up location hash update
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$tw.wiki.addEventListener("change",function(changes) {
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if($tw.utils.hop(changes,DEFAULT_STORY_TITLE) || $tw.utils.hop(changes,DEFAULT_HISTORY_TITLE)) {
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updateLocationHash();
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}
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});
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// Listen for changes to the browser location hash
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window.addEventListener("hashchange",function() {
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if(window.location.hash !== $tw.locationHash) {
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$tw.locationHash = window.location.hash;
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openStartupTiddlers({defaultToCurrentStory: true});
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}
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},false)
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// If we're being viewed on a data: URI then give instructions for how to save
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if(document.location.protocol === "data:") {
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$tw.utils.dispatchCustomEvent(document,"tw-modal",{
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param: "$:/language/Modals/SaveInstructions"
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});
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}
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} else {
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// On the server, start a commander with the command line arguments
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commander = new $tw.Commander(
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$tw.boot.argv,
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function(err) {
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if(err) {
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console.log("Error: " + err);
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}
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},
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$tw.wiki,
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{output: process.stdout, error: process.stderr}
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);
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commander.execute();
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}
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};
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/*
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Process the location hash to open the specified tiddlers. Options:
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defaultToCurrentStory: If true, the current story is retained as the default, instead of opening the default tiddlers
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*/
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function openStartupTiddlers(options) {
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options = options || {};
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// Decode the hash portion of our URL
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var target,
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storyFilter;
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if($tw.locationHash.length > 1) {
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var hash = $tw.locationHash.substr(1),
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split = hash.indexOf(":");
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if(split === -1) {
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target = decodeURIComponent(hash.trim());
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} else {
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target = decodeURIComponent(hash.substr(0,split).trim());
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storyFilter = decodeURIComponent(hash.substr(split + 1).trim());
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}
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}
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// If a target tiddler was specified add it to the history stack
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if(target && target !== "") {
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// The target tiddler doesn't need double square brackets, but we'll silently remove them if they're present
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if(target.indexOf("[[") === 0 && target.substr(-2) === "]]") {
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target = target.substr(2,target.length - 4);
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}
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$tw.wiki.addToHistory(target);
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}
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// Use the story filter specified in the hash, or the default tiddlers
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if(!storyFilter || storyFilter === "") {
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if(options.defaultToCurrentStory) {
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var currStoryList = $tw.wiki.getTiddlerList(DEFAULT_STORY_TITLE);
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storyFilter = $tw.utils.stringifyList(currStoryList);
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} else {
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storyFilter = $tw.wiki.getTiddlerText(DEFAULT_TIDDLERS_TITLE);
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}
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}
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var storyList = $tw.wiki.filterTiddlers(storyFilter);
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// If the target tiddler isn't included then splice it in at the top
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if(target && storyList.indexOf(target) === -1) {
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storyList.unshift(target);
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}
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// Save the story list
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$tw.wiki.addTiddler({title: DEFAULT_STORY_TITLE, text: "", list: storyList},$tw.wiki.getModificationFields());
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}
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/*
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Helper to display the default tiddlers
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*/
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function displayDefaultTiddlers() {
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$tw.wiki.addTiddler({title: DEFAULT_STORY_TITLE, text: "", list: getDefaultTiddlers()},$tw.wiki.getModificationFields());
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}
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function getDefaultTiddlers() {
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var defaultTiddlersTiddler = $tw.wiki.getTiddler(DEFAULT_TIDDLERS_TITLE),
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defaultTiddlers = [];
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if(defaultTiddlersTiddler) {
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defaultTiddlers = $tw.wiki.filterTiddlers(defaultTiddlersTiddler.fields.text);
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}
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return defaultTiddlers;
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}
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function updateLocationHash() {
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var storyList = $tw.wiki.getTiddlerList(DEFAULT_STORY_TITLE),
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historyList = $tw.wiki.getTiddlerData(DEFAULT_HISTORY_TITLE,[]);
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var targetTiddler = "";
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if(historyList.length > 0) {
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targetTiddler = historyList[historyList.length-1].title;
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}
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$tw.locationHash = "#" + encodeURIComponent(targetTiddler) + ":" + encodeURIComponent($tw.utils.stringifyList(storyList));
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// Only change the location hash if we must, thus avoiding unnecessary onhashchange events
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if(window.location.hash !== $tw.locationHash) {
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window.location.hash = $tw.locationHash;
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}
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}
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})();
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