kopia lustrzana https://github.com/miklobit/TiddlyWiki5
107 wiersze
3.4 KiB
JavaScript
107 wiersze
3.4 KiB
JavaScript
/*\
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title: $:/core/modules/startup/setup-story.js
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type: application/javascript
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module-type: startup
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Load core modules
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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// Export name and synchronous status
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exports.name = "setup-story";
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exports.after = ["startup"];
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exports.synchronous = true;
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// Default story and history lists
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var DEFAULT_STORY_TITLE = "$:/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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exports.startup = function() {
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// Open startup tiddlers
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openStartupTiddlers();
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if($tw.browser) {
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// Set up location hash update
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$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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}
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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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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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