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Code Issues Releases Wiki Activity

Split main rendering into it's own startup module

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This commit is contained in:
Jermolene 2014-05-03 19:50:05 +01:00
parent 09156af475
commit b9dec37fb7
2 changed files with 82 additions and 66 deletions
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66
core/modules/startup.js
View File

@ -195,25 +195,6 @@ exports.startup = function() {
openStartupTiddlers({defaultToCurrentStory: true}); openStartupTiddlers({defaultToCurrentStory: true});
} }
},false) },false)
// Set up the styles
var styleTemplateTitle = "$:/core/ui/PageStylesheet",
styleParser = $tw.wiki.parseTiddler(styleTemplateTitle);
$tw.styleWidgetNode = $tw.wiki.makeWidget(styleParser,{document: $tw.fakeDocument});
$tw.styleContainer = $tw.fakeDocument.createElement("style");
$tw.styleWidgetNode.render($tw.styleContainer,null);
$tw.styleElement = document.createElement("style");
$tw.styleElement.innerHTML = $tw.styleContainer.textContent;
document.head.insertBefore($tw.styleElement,document.head.firstChild);
$tw.wiki.addEventListener("change",$tw.perf.report("styleRefresh",function(changes) {
if($tw.styleWidgetNode.refresh(changes,$tw.styleContainer,null)) {
$tw.styleElement.innerHTML = $tw.styleContainer.textContent;
}
}));
// Display the $:/PageMacros tiddler to kick off the display
renderPage();
// Fix up the link between the root widget and the page container
$tw.rootWidget.domNodes = [$tw.pageContainer];
$tw.rootWidget.children = [$tw.pageWidgetNode];
// If we're being viewed on a data: URI then give instructions for how to save // If we're being viewed on a data: URI then give instructions for how to save
if(document.location.protocol === "data:") { if(document.location.protocol === "data:") {
$tw.utils.dispatchCustomEvent(document,"tw-modal",{ $tw.utils.dispatchCustomEvent(document,"tw-modal",{
@ -311,51 +292,4 @@ function updateLocationHash() {
} }
} }
/*
Main render function for PageMacros, which includes the PageTemplate
*/
function renderPage() {
// Parse and render the template
var templateTitle = "$:/core/ui/PageMacros",
parser = $tw.wiki.parseTiddler(templateTitle);
$tw.perf.report("mainRender",function() {
$tw.pageWidgetNode = $tw.wiki.makeWidget(parser,{document: document, parentWidget: $tw.rootWidget});
$tw.pageContainer = document.createElement("div");
$tw.utils.addClass($tw.pageContainer,"tw-page-container-wrapper");
document.body.insertBefore($tw.pageContainer,document.body.firstChild);
$tw.pageWidgetNode.render($tw.pageContainer,null);
})();
// Prepare refresh mechanism
var deferredChanges = Object.create(null),
timerId;
function refresh() {
// Process the refresh
$tw.pageWidgetNode.refresh(deferredChanges,$tw.pageContainer,null);
deferredChanges = Object.create(null);
}
// Add the change event handler
$tw.wiki.addEventListener("change",$tw.perf.report("mainRefresh",function(changes) {
// Check if only drafts have changed
var onlyDraftsHaveChanged = true;
for(var title in changes) {
var tiddler = $tw.wiki.getTiddler(title);
if(!tiddler || !tiddler.hasField("draft.of")) {
onlyDraftsHaveChanged = false;
}
}
// Defer the change if only drafts have changed
if(timerId) {
clearTimeout(timerId);
}
timerId = null;
if(onlyDraftsHaveChanged) {
timerId = setTimeout(refresh,DRAFT_TIDDLER_TIMEOUT);
$tw.utils.extend(deferredChanges,changes);
} else {
$tw.utils.extend(deferredChanges,changes);
refresh();
}
}));
}
})(); })();

82
core/modules/startup/main-render.js Normal file
View File

@ -0,0 +1,82 @@
/*\
title: $:/core/modules/startup/main-render.js
type: application/javascript
module-type: startup
Load core modules
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
// Export name and synchronous status
exports.name = "main-render";
exports.platforms = ["browser"];
exports.after = ["startup"];
exports.synchronous = true;
exports.startup = function() {
// Set up the styles
var styleTemplateTitle = "$:/core/ui/PageStylesheet",
styleParser = $tw.wiki.parseTiddler(styleTemplateTitle);
$tw.styleWidgetNode = $tw.wiki.makeWidget(styleParser,{document: $tw.fakeDocument});
$tw.styleContainer = $tw.fakeDocument.createElement("style");
$tw.styleWidgetNode.render($tw.styleContainer,null);
$tw.styleElement = document.createElement("style");
$tw.styleElement.innerHTML = $tw.styleContainer.textContent;
document.head.insertBefore($tw.styleElement,document.head.firstChild);
$tw.wiki.addEventListener("change",$tw.perf.report("styleRefresh",function(changes) {
if($tw.styleWidgetNode.refresh(changes,$tw.styleContainer,null)) {
$tw.styleElement.innerHTML = $tw.styleContainer.textContent;
}
}));
// Display the $:/core/ui/PageMacros tiddler to kick off the display
var templateTitle = "$:/core/ui/PageMacros",
parser = $tw.wiki.parseTiddler(templateTitle);
$tw.perf.report("mainRender",function() {
$tw.pageWidgetNode = $tw.wiki.makeWidget(parser,{document: document, parentWidget: $tw.rootWidget});
$tw.pageContainer = document.createElement("div");
$tw.utils.addClass($tw.pageContainer,"tw-page-container-wrapper");
document.body.insertBefore($tw.pageContainer,document.body.firstChild);
$tw.pageWidgetNode.render($tw.pageContainer,null);
})();
// Prepare refresh mechanism
var deferredChanges = Object.create(null),
timerId;
function refresh() {
// Process the refresh
$tw.pageWidgetNode.refresh(deferredChanges,$tw.pageContainer,null);
deferredChanges = Object.create(null);
}
// Add the change event handler
$tw.wiki.addEventListener("change",$tw.perf.report("mainRefresh",function(changes) {
// Check if only drafts have changed
var onlyDraftsHaveChanged = true;
for(var title in changes) {
var tiddler = $tw.wiki.getTiddler(title);
if(!tiddler || !tiddler.hasField("draft.of")) {
onlyDraftsHaveChanged = false;
}
}
// Defer the change if only drafts have changed
if(timerId) {
clearTimeout(timerId);
}
timerId = null;
if(onlyDraftsHaveChanged) {
timerId = setTimeout(refresh,DRAFT_TIDDLER_TIMEOUT);
$tw.utils.extend(deferredChanges,changes);
} else {
$tw.utils.extend(deferredChanges,changes);
refresh();
}
}));
// Fix up the link between the root widget and the page container
$tw.rootWidget.domNodes = [$tw.pageContainer];
$tw.rootWidget.children = [$tw.pageWidgetNode];
};
})();