kopia lustrzana https://github.com/miklobit/TiddlyWiki5
86 wiersze
2.9 KiB
JavaScript
86 wiersze
2.9 KiB
JavaScript
/*\
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title: $:/core/modules/startup/main-render.js
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type: application/javascript
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module-type: startup
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Main stylesheet and page rendering
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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// Export name and synchronous status
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exports.name = "main-render";
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exports.platforms = ["browser"];
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exports.after = ["setup-story"];
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exports.synchronous = true;
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// Time (in ms) that we defer refreshing changes to draft tiddlers
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var DRAFT_TIDDLER_TIMEOUT = 400;
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exports.startup = function() {
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// Set up the styles
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var styleTemplateTitle = "$:/core/ui/PageStylesheet",
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styleParser = $tw.wiki.parseTiddler(styleTemplateTitle);
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$tw.styleWidgetNode = $tw.wiki.makeWidget(styleParser,{document: $tw.fakeDocument});
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$tw.styleContainer = $tw.fakeDocument.createElement("style");
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$tw.styleWidgetNode.render($tw.styleContainer,null);
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$tw.styleElement = document.createElement("style");
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$tw.styleElement.innerHTML = $tw.styleContainer.textContent;
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document.head.insertBefore($tw.styleElement,document.head.firstChild);
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$tw.wiki.addEventListener("change",$tw.perf.report("styleRefresh",function(changes) {
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if($tw.styleWidgetNode.refresh(changes,$tw.styleContainer,null)) {
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$tw.styleElement.innerHTML = $tw.styleContainer.textContent;
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}
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}));
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// Display the $:/core/ui/PageMacros tiddler to kick off the display
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var templateTitle = "$:/core/ui/PageMacros",
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parser = $tw.wiki.parseTiddler(templateTitle);
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$tw.perf.report("mainRender",function() {
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$tw.pageWidgetNode = $tw.wiki.makeWidget(parser,{document: document, parentWidget: $tw.rootWidget});
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$tw.pageContainer = document.createElement("div");
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$tw.utils.addClass($tw.pageContainer,"tw-page-container-wrapper");
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document.body.insertBefore($tw.pageContainer,document.body.firstChild);
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$tw.pageWidgetNode.render($tw.pageContainer,null);
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})();
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// Prepare refresh mechanism
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var deferredChanges = Object.create(null),
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timerId;
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function refresh() {
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// Process the refresh
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$tw.pageWidgetNode.refresh(deferredChanges,$tw.pageContainer,null);
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deferredChanges = Object.create(null);
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}
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// Add the change event handler
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$tw.wiki.addEventListener("change",$tw.perf.report("mainRefresh",function(changes) {
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// Check if only drafts have changed
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var onlyDraftsHaveChanged = true;
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for(var title in changes) {
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var tiddler = $tw.wiki.getTiddler(title);
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if(!tiddler || !tiddler.hasField("draft.of")) {
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onlyDraftsHaveChanged = false;
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}
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}
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// Defer the change if only drafts have changed
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if(timerId) {
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clearTimeout(timerId);
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}
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timerId = null;
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if(onlyDraftsHaveChanged) {
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timerId = setTimeout(refresh,DRAFT_TIDDLER_TIMEOUT);
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$tw.utils.extend(deferredChanges,changes);
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} else {
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$tw.utils.extend(deferredChanges,changes);
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refresh();
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}
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}));
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// Fix up the link between the root widget and the page container
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$tw.rootWidget.domNodes = [$tw.pageContainer];
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$tw.rootWidget.children = [$tw.pageWidgetNode];
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};
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})();
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