Remove testing code

* first pass at fixing bug 7878, needs testing

* clarify default behaviour in comment

* fix property typo, tested and works as intended

* remove debugger

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ on:
       - master
       - tiddlywiki-com
 env:
-  NODE_VERSION: "12"
+  NODE_VERSION: "18"
 jobs:
   test:
     runs-on: ubuntu-latest
@@ -14,7 +14,13 @@ jobs:
       - uses: actions/setup-node@v1
         with:
           node-version: "${{ env.NODE_VERSION }}"
-      - run: "./bin/test.sh"
+      - run: "./bin/ci-test.sh"
+      - uses: actions/upload-artifact@v3
+        if: always()
+        with:
+          name: playwright-report
+          path: playwright-report/
+          retention-days: 30
   build-prerelease:
     runs-on: ubuntu-latest
     if: github.ref == 'refs/heads/master'
@@ -54,6 +60,7 @@ jobs:
       TW5_BUILD_TIDDLYWIKI: "./node_modules/tiddlywiki/tiddlywiki.js"
       TW5_BUILD_MAIN_EDITION: "./editions/tw5.com"
       TW5_BUILD_OUTPUT: "./output"
+      TW5_BUILD_ARCHIVE: "./output"
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v1

.gitignore

@@ -5,4 +5,7 @@
 tmp/
 output/
 node_modules/
-
+/test-results/
+/playwright-report/
+/playwright/.cache/
+$__StoryList.tid

bin/build-site.sh

@@ -5,7 +5,7 @@
 # Default to the current version number for building the plugin library
 
 if [  -z "$TW5_BUILD_VERSION" ]; then
-    TW5_BUILD_VERSION=v5.3.2
+    TW5_BUILD_VERSION=v5.3.3
 fi
 
 echo "Using TW5_BUILD_VERSION as [$TW5_BUILD_VERSION]"
@@ -84,10 +84,27 @@ echo -e -n "title: $:/build\ncommit: $TW5_BUILD_COMMIT\n\n$TW5_BUILD_DETAILS\n"
 
 ######################################################
 #
-# Core distribution
+# Core distributions
 #
 ######################################################
 
+# Conditionally build archive if $TW5_BUILD_ARCHIVE variable is set, otherwise do nothing
+#
+# /archive/Empty-TiddlyWiki-<version>.html	Empty archived version
+# /archive/TiddlyWiki-<version>.html		Full archived version
+
+if [ -n "$TW5_BUILD_ARCHIVE" ]; then
+
+node $TW5_BUILD_TIDDLYWIKI \
+	$TW5_BUILD_MAIN_EDITION \
+	--verbose \
+	--version \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_ARCHIVE \
+	--build archive \
+	|| exit 1
+fi
+
 # /index.html			Main site
 # /favicon.ico			Favicon for main site
 # /static.html			Static rendering of default tiddlers
@@ -95,6 +112,7 @@ echo -e -n "title: $:/build\ncommit: $TW5_BUILD_COMMIT\n\n$TW5_BUILD_DETAILS\n"
 # /static/*				Static single tiddlers
 # /static/static.css	Static stylesheet
 # /static/favicon.ico	Favicon for static pages
+
 node $TW5_BUILD_TIDDLYWIKI \
 	$TW5_BUILD_MAIN_EDITION \
 	--verbose \
@@ -138,6 +156,28 @@ node $TW5_BUILD_TIDDLYWIKI \
 	--build index favicon static \
 	|| exit 1
 
+# /tour.html			tour edition
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/tour \
+	--verbose \
+	--output $TW5_BUILD_OUTPUT \
+	--rendertiddler $:/core/save/all tour.html text/plain \
+	|| exit 1
+
+# /dev/index.html			Developer docs
+# /dev/favicon.ico			Favicon for dev site
+# /dev/static.html			Static rendering of default tiddlers
+# /dev/alltiddlers.html		Static rendering of all tiddlers
+# /dev/static/*				Static single tiddlers
+# /dev/static/static.css	Static stylesheet
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/dev \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/dev \
+	--build index favicon static \
+	|| exit 1
+
 # /share.html				Custom edition for sharing via the URL
 node $TW5_BUILD_TIDDLYWIKI \
 	./editions/share \

bin/ci-test.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+# test TiddlyWiki5 for tiddlywiki.com
+
+node ./tiddlywiki.js \
+	./editions/test \
+	--verbose \
+	--version \
+	--rendertiddler $:/core/save/all test.html text/plain \
+	--test \
+	|| exit 1
+
+npm install playwright @playwright/test
+npx playwright install chromium firefox --with-deps
+
+npx playwright test

boot/boot.js

@@ -177,6 +177,7 @@ document: defaults to current document
 eventListeners: array of event listeners (this option won't work until $tw.utils.addEventListeners() has been loaded)
 */
 $tw.utils.domMaker = function(tag,options) {
+	var options = options || {};
 	var doc = options.document || document;
 	var element = doc.createElementNS(options.namespace || "http://www.w3.org/1999/xhtml",tag);
 	if(options["class"]) {
@@ -218,9 +219,34 @@ $tw.utils.error = function(err) {
 			heading = dm("h1",{text: errHeading}),
 			prompt = dm("div",{text: promptMsg, "class": "tc-error-prompt"}),
 			message = dm("div",{text: err, "class":"tc-error-message"}),
-			button = dm("div",{children: [dm("button",{text: ( $tw.language == undefined ? "close" : $tw.language.getString("Buttons/Close/Caption") )})], "class": "tc-error-prompt"}),
-			form = dm("form",{children: [heading,prompt,message,button], "class": "tc-error-form"});
+			closeButton = dm("div",{children: [dm("button",{text: ( $tw.language == undefined ? "close" : $tw.language.getString("Buttons/Close/Caption") )})], "class": "tc-error-prompt"}),
+			downloadButton = dm("div",{children: [dm("button",{text: ( $tw.language == undefined ? "download tiddlers" : $tw.language.getString("Buttons/EmergencyDownload/Caption") )})], "class": "tc-error-prompt"}),
+			form = dm("form",{children: [heading,prompt,downloadButton,message,closeButton], "class": "tc-error-form"});
 		document.body.insertBefore(form,document.body.firstChild);
+		downloadButton.addEventListener("click",function(event) {
+			if($tw && $tw.wiki) {
+				var tiddlers = [];
+				$tw.wiki.each(function(tiddler,title) {
+					tiddlers.push(tiddler.fields);
+				});
+				var link = dm("a"),
+					text = JSON.stringify(tiddlers);
+				if(Blob !== undefined) {
+					var blob = new Blob([text], {type: "text/html"});
+					link.setAttribute("href", URL.createObjectURL(blob));
+				} else {
+					link.setAttribute("href","data:text/html," + encodeURIComponent(text));
+				}
+				link.setAttribute("download","emergency-tiddlers-" + (new Date()) + ".json");
+				document.body.appendChild(link);
+				link.click();
+				document.body.removeChild(link);
+			} else {
+				alert("Emergency tiddler download is not available");
+			}
+			event.preventDefault();
+			return false;
+		},true);
 		form.addEventListener("submit",function(event) {
 			document.body.removeChild(form);
 			event.preventDefault();
@@ -786,6 +812,7 @@ $tw.utils.Crypto = function() {
 			}
 			return outputText;
 		};
+	$tw.sjcl = sjcl;
 	this.setPassword = function(newPassword) {
 		currentPassword = newPassword;
 		this.updateCryptoStateTiddler();
@@ -1967,10 +1994,10 @@ $tw.loadTiddlersFromSpecification = function(filepath,excludeRegExp) {
 					var value = tiddler[name];
 					switch(fieldInfo.source) {
 						case "subdirectories":
-							value = path.relative(rootPath, filename).split('/').slice(0, -1);
+							value = path.relative(rootPath, filename).split(path.sep).slice(0, -1);
 							break;
 						case "filepath":
-							value = path.relative(rootPath, filename);
+							value = path.relative(rootPath, filename).split(path.sep).join('/');
 							break;
 						case "filename":
 							value = path.basename(filename);
@@ -2438,6 +2465,7 @@ $tw.boot.initStartup = function(options) {
 	$tw.utils.registerFileType("image/svg+xml","utf8",".svg",{flags:["image"]});
 	$tw.utils.registerFileType("image/vnd.microsoft.icon","base64",".ico",{flags:["image"]});
 	$tw.utils.registerFileType("image/x-icon","base64",".ico",{flags:["image"]});
+	$tw.utils.registerFileType("application/wasm","base64",".wasm");
 	$tw.utils.registerFileType("application/font-woff","base64",".woff");
 	$tw.utils.registerFileType("application/x-font-ttf","base64",".woff");
 	$tw.utils.registerFileType("application/font-woff2","base64",".woff2");
@@ -2452,8 +2480,12 @@ $tw.boot.initStartup = function(options) {
 	$tw.utils.registerFileType("text/x-markdown","utf8",[".md",".markdown"]);
 	$tw.utils.registerFileType("application/enex+xml","utf8",".enex");
 	$tw.utils.registerFileType("application/vnd.openxmlformats-officedocument.wordprocessingml.document","base64",".docx");
+	$tw.utils.registerFileType("application/msword","base64",".doc");
 	$tw.utils.registerFileType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet","base64",".xlsx");
+	$tw.utils.registerFileType("application/excel","base64",".xls");
+	$tw.utils.registerFileType("application/vnd.ms-excel","base64",".xls");
 	$tw.utils.registerFileType("application/vnd.openxmlformats-officedocument.presentationml.presentation","base64",".pptx");
+	$tw.utils.registerFileType("application/mspowerpoint","base64",".ppt");
 	$tw.utils.registerFileType("text/x-bibtex","utf8",".bib",{deserializerType:"application/x-bibtex"});
 	$tw.utils.registerFileType("application/x-bibtex","utf8",".bib");
 	$tw.utils.registerFileType("application/epub+zip","base64",".epub");
@@ -2674,6 +2706,18 @@ $tw.hooks.addHook = function(hookName,definition) {
 	}
 };
 
+/*
+Delete hooks from the hashmap
+*/
+$tw.hooks.removeHook = function(hookName,definition) {
+	if($tw.utils.hop($tw.hooks.names,hookName)) {
+		var p = $tw.hooks.names[hookName].indexOf(definition);
+		if(p !== -1) {
+			$tw.hooks.names[hookName].splice(p, 1);
+		}
+	}
+};
+
 /*
 Invoke the hook by key
 */

core/copyright.tid

@@ -4,7 +4,7 @@ type: text/plain
 TiddlyWiki created by Jeremy Ruston, (jeremy [at] jermolene [dot] com)
 
 Copyright (c) 2004-2007, Jeremy Ruston
-Copyright (c) 2007-2023, UnaMesa Association
+Copyright (c) 2007-2024, UnaMesa Association
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

core/images/default-layout.tid

@@ -0,0 +1,7 @@
+title: $:/core/images/default-layout
+tags: $:/tags/Image
+
+\parameters (size:"22pt")
+<svg width=<<size>> height=<<size>> class="tc-image-default-layout tc-image-button" viewBox="0 0 128 128">
+    <path d="M71.93 72A8.07 8.07 0 0 1 80 80.07v7.86A8.071 8.071 0 0 1 71.93 96H8.07A8.067 8.067 0 0 1 0 87.93v-7.86A8.072 8.072 0 0 1 8.07 72h63.86Zm0 32a8.07 8.07 0 0 1 8.07 8.07v7.86a8.071 8.071 0 0 1-8.07 8.07H8.07A8.067 8.067 0 0 1 0 119.93v-7.86A8.072 8.072 0 0 1 8.07 104h63.86Zm0-104A8.068 8.068 0 0 1 80 8.07v47.86A8.073 8.073 0 0 1 71.93 64H8.07A8.07 8.07 0 0 1 0 55.93V8.07A8.072 8.072 0 0 1 8.07 0h63.86Zm48 0c2.14 0 4.193.85 5.706 2.364A8.067 8.067 0 0 1 128 8.07v111.86c0 2.14-.85 4.193-2.364 5.706A8.067 8.067 0 0 1 119.93 128H96.07c-2.14 0-4.193-.85-5.706-2.364A8.067 8.067 0 0 1 88 119.93V8.07c0-2.14.85-4.193 2.364-5.706A8.067 8.067 0 0 1 96.07 0h23.86ZM116 24h-16a3.995 3.995 0 0 0-2.828 1.172 3.995 3.995 0 0 0 0 5.656A3.995 3.995 0 0 0 100 32h16a3.995 3.995 0 0 0 2.828-1.172 3.995 3.995 0 0 0 0-5.656A3.995 3.995 0 0 0 116 24Z"/>
+</svg>

core/language/en-GB/Buttons.multids

@@ -28,6 +28,7 @@ Encryption/ClearPassword/Caption: clear password
 Encryption/ClearPassword/Hint: Clear the password and save this wiki without encryption
 Encryption/SetPassword/Caption: set password
 Encryption/SetPassword/Hint: Set a password for saving this wiki with encryption
+EmergencyDownload/Caption: download tiddlers as json
 ExportPage/Caption: export all
 ExportPage/Hint: Export all tiddlers
 ExportTiddler/Caption: export tiddler

core/language/en-GB/Docs/ModuleTypes.multids

@@ -9,7 +9,7 @@ config: Data to be inserted into `$tw.config`.
 filteroperator: Individual filter operator methods.
 global: Global data to be inserted into `$tw`.
 info: Publishes system information via the [[$:/temp/info-plugin]] pseudo-plugin.
-isfilteroperator: Operands for the ''is'' filter operator.
+isfilteroperator: Parameters for the ''is'' filter operator.
 library: Generic module type for general purpose JavaScript modules.
 macro: JavaScript macro definitions.
 parser: Parsers for different content types.

core/language/en-GB/Exporters.multids

@@ -3,4 +3,4 @@ title: $:/language/Exporters/
 StaticRiver: Static HTML
 JsonFile: JSON file
 CsvFile: CSV file
-TidFile: ".tid" file
+TidFile: TID text file

core/language/en-GB/Fields.multids

@@ -4,6 +4,7 @@ _canonical_uri: The full URI of an external image tiddler
 author: Name of the author of a plugin
 bag: The name of the bag from which a tiddler came
 caption: The text to be displayed on a tab or button
+class: The CSS class applied to a tiddler when rendering it - see [[Custom styles by user-class]].  Also used for [[Modals]]
 code-body: The view template will display the tiddler as code if set to ''yes''
 color: The CSS color value associated with a tiddler
 component: The name of the component responsible for an [[alert tiddler|AlertMechanism]]

core/language/en-GB/Help/commands.tid

@@ -10,7 +10,7 @@ Sequentially run the command tokens returned from a filter
 Examples
 
 ```
---commands "[enlist{$:/build-commands-as-text}]"
+--commands "[enlist:raw{$:/build-commands-as-text}]"
 ```
 
 ```

core/language/en-GB/Help/savewikifolder.tid

@@ -19,7 +19,7 @@ The following options are supported:
 ** ''yes'' will "explode" plugins into separate tiddler files and save them to the plugin directory within the wiki folder
 ** ''no'' will suppress exploding plugins into their constituent tiddler files. It will save the plugin as a single JSON tiddler in the tiddlers folder
 
-Note that both ''explodePlugins'' options will produce wiki folders that build the same exact same original wiki. The difference lies in how plugins are represented in the wiki folder.
+Note that both ''explodePlugins'' options will produce wiki folders that build the exact same original wiki. The difference lies in how plugins are represented in the wiki folder.
 
 A common usage is to convert a TiddlyWiki HTML file into a wiki folder:
 
@@ -31,4 +31,4 @@ Save the plugin to the tiddlers directory of the target wiki folder:
 
 ```
 tiddlywiki --load ./mywiki.html --savewikifolder ./mywikifolder explodePlugins=no
-```
+```

core/language/en-GB/Misc.multids

@@ -30,7 +30,7 @@ Error/DeserializeOperator/UnknownDeserializer: Filter Error: Unknown deserialize
 Error/Filter: Filter error
 Error/FilterSyntax: Syntax error in filter expression
 Error/FilterRunPrefix: Filter Error: Unknown prefix for filter run
-Error/IsFilterOperator: Filter Error: Unknown operand for the 'is' filter operator
+Error/IsFilterOperator: Filter Error: Unknown parameter for the 'is' filter operator
 Error/FormatFilterOperator: Filter Error: Unknown suffix for the 'format' filter operator
 Error/LoadingPluginLibrary: Error loading plugin library
 Error/NetworkErrorAlert: `<h2>''Network Error''</h2>It looks like the connection to the server has been lost. This may indicate a problem with your network connection. Please attempt to restore network connectivity before continuing.<br><br>''Any unsaved changes will be automatically synchronised when connectivity is restored''.`

core/language/en-GB/Types/image_svg_xml.tid

@@ -1,5 +1,5 @@
 title: $:/language/Docs/Types/image/svg+xml
-description: Structured Vector Graphics image
+description: SVG image
 name: image/svg+xml
 group: Image
 group-sort: 1

core/language/en-GB/Types/image_x-icon.tid

@@ -1,5 +1,5 @@
 title: $:/language/Docs/Types/image/x-icon
-description: ICO format icon file
+description: ICO icon
 name: image/x-icon
 group: Image
 group-sort: 1

core/modules/commands/listen.js

@@ -18,7 +18,7 @@ exports.info = {
 	name: "listen",
 	synchronous: true,
 	namedParameterMode: true,
-	mandatoryParameters: [],
+	mandatoryParameters: []
 };
 
 var Command = function(params,commander,callback) {

core/modules/commands/save.js

@@ -43,7 +43,9 @@ Saves individual tiddlers in their raw text or binary format to the specified fi
 						directory: path.resolve(self.commander.outputPath),
 						pathFilters: [filenameFilter],
 						wiki: wiki,
-						fileInfo: {}
+						fileInfo: {
+							overwrite: true
+						}
 					});
 					if(self.commander.verbose) {
 						console.log("Saving \"" + title + "\" to \"" + fileInfo.filepath + "\"");

core/modules/commands/savetiddlers.js

@@ -46,7 +46,7 @@ Command.prototype.execute = function() {
 			type = tiddler.fields.type || "text/vnd.tiddlywiki",
 			contentTypeInfo = $tw.config.contentTypeInfo[type] || {encoding: "utf8"},
 			filename = path.resolve(pathname,$tw.utils.encodeURIComponentExtended(title));
-		fs.writeFileSync(filename,tiddler.fields.text,contentTypeInfo.encoding);
+		fs.writeFileSync(filename,tiddler.fields.text || "",contentTypeInfo.encoding);
 	});
 	return null;
 };

core/modules/filters/all.js

@@ -28,12 +28,8 @@ function getAllFilterOperators() {
 Export our filter function
 */
 exports.all = function(source,operator,options) {
-	// Get our suboperators
-	var allFilterOperators = getAllFilterOperators();
-	// Cycle through the suboperators accumulating their results
-	var results = new $tw.utils.LinkedList(),
-		subops = operator.operand.split("+");
 	// Check for common optimisations
+	var subops = operator.operand.split("+");
 	if(subops.length === 1 && subops[0] === "") {
 		return source;
 	} else if(subops.length === 1 && subops[0] === "tiddlers") {
@@ -46,6 +42,10 @@ exports.all = function(source,operator,options) {
 		return options.wiki.eachShadowPlusTiddlers;
 	}
 	// Do it the hard way
+	// Get our suboperators
+	var allFilterOperators = getAllFilterOperators();
+	// Cycle through the suboperators accumulating their results
+	var results = new $tw.utils.LinkedList();
 	for(var t=0; t<subops.length; t++) {
 		var subop = allFilterOperators[subops[t]];
 		if(subop) {

core/modules/filters/backtranscludes.js

@@ -0,0 +1,26 @@
+/*\
+title: $:/core/modules/filters/backtranscludes.js
+type: application/javascript
+module-type: filteroperator
+
+Filter operator for returning all the backtranscludes from a tiddler
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Export our filter function
+*/
+exports.backtranscludes = function(source,operator,options) {
+	var results = [];
+	source(function(tiddler,title) {
+		$tw.utils.pushTop(results,options.wiki.getTiddlerBacktranscludes(title));
+	});
+	return results;
+};
+
+})();

core/modules/filters/crypto.js

@@ -14,12 +14,9 @@ Filter operators for cryptography, using the Stanford JavaScript library
 
 exports.sha256 = function(source,operator,options) {
 	var results = [],
-		length = parseInt(operator.operand,10) || 20,
-		sha256 = function(text) {
-			return sjcl.codec.hex.fromBits(sjcl.hash.sha256.hash(text)).substr(0,length);
-		};
+		length = parseInt(operator.operand,10) || 20;
 	source(function(tiddler,title) {
-		results.push(sha256(title));
+		results.push($tw.utils.sha256(title,{length: length}));
 	});
 	return results;
 };

core/modules/filters/encodings.js

@@ -18,16 +18,20 @@ Export our filter functions
 
 exports.decodebase64 = function(source,operator,options) {
 	var results = [];
+	var binary = operator.suffixes && operator.suffixes.indexOf("binary") !== -1;
+	var urlsafe = operator.suffixes && operator.suffixes.indexOf("urlsafe") !== -1;
 	source(function(tiddler,title) {
-		results.push($tw.utils.base64Decode(title));
+		results.push($tw.utils.base64Decode(title,binary,urlsafe));
 	});
 	return results;
 };
 
 exports.encodebase64 = function(source,operator,options) {
 	var results = [];
+	var binary = operator.suffixes && operator.suffixes.indexOf("binary") !== -1;
+	var urlsafe = operator.suffixes && operator.suffixes.indexOf("urlsafe") !== -1;
 	source(function(tiddler,title) {
-		results.push($tw.utils.base64Encode(title));
+		results.push($tw.utils.base64Encode(title,binary,urlsafe));
 	});
 	return results;
 };

core/modules/filters/json-ops.js

@@ -213,6 +213,18 @@ function getDataItemType(data,indexes) {
 	}
 }
 
+function getItemAtIndex(item,index) {
+	if($tw.utils.hop(item,index)) {
+		return item[index];
+	} else if($tw.utils.isArray(item)) {
+		index = $tw.utils.parseInt(index);
+		if(index < 0) { index = index + item.length };
+		return item[index]; // Will be undefined if index was out-of-bounds
+	} else {
+		return undefined;
+	}
+}
+
 /*
 Given a JSON data structure and an array of index strings, return the value at the end of the index chain, or "undefined" if any of the index strings are invalid
 */
@@ -225,7 +237,7 @@ function getDataItem(data,indexes) {
 	for(var i=0; i<indexes.length; i++) {
 		if(item !== undefined) {
 			if(item !== null && ["number","string","boolean"].indexOf(typeof item) === -1) {
-				item = item[indexes[i]];
+				item = getItemAtIndex(item,indexes[i]);
 			} else {
 				item = undefined;
 			}
@@ -249,17 +261,22 @@ function setDataItem(data,indexes,value) {
 	// Traverse the JSON data structure using the index chain
 	var current = data;
 	for(var i = 0; i < indexes.length - 1; i++) {
-		var index = indexes[i];
-		if($tw.utils.hop(current,index)) {
-			current = current[index];
-		} else {
+		current = getItemAtIndex(current,indexes[i]);
+		if(current === undefined) {
 			// Return the original JSON data structure if any of the index strings are invalid
 			return data;
 		}
 	}
 	// Add the value to the end of the index chain
 	var lastIndex = indexes[indexes.length - 1];
-	current[lastIndex] = value;
+	if($tw.utils.isArray(current)) {
+		lastIndex = $tw.utils.parseInt(lastIndex);
+		if(lastIndex < 0) { lastIndex = lastIndex + current.length };
+	}
+	// Only set indexes on objects and arrays
+	if(typeof current === "object") {
+		current[lastIndex] = value;
+	}
 	return data;
 }
 

core/modules/filters/listops.js

@@ -58,6 +58,7 @@ Last entry/entries in list
 exports.last = function(source,operator,options) {
 	var count = $tw.utils.getInt(operator.operand,1),
 		results = [];
+	if(count === 0) return results;
 	source(function(tiddler,title) {
 		results.push(title);
 	});

core/modules/filters/transcludes.js

@@ -0,0 +1,26 @@
+/*\
+title: $:/core/modules/filters/transcludes.js
+type: application/javascript
+module-type: filteroperator
+
+Filter operator for returning all the transcludes from a tiddler
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Export our filter function
+*/
+exports.transcludes = function(source,operator,options) {
+	var results = new $tw.utils.LinkedList();
+	source(function(tiddler,title) {
+		results.pushTop(options.wiki.getTiddlerTranscludes(title));
+	});
+	return results.toArray();
+};
+
+})();

core/modules/filters/x-listops.js

@@ -202,7 +202,7 @@ Extended filter operators to manipulate the current list.
 		}
 		if(resultsIndex !== -1) {
 			i = i + step;
-			nextOperandIndex = (i < opLength ? i : i - opLength);
+			nextOperandIndex = (i < opLength ? i : i % opLength);
 			if(operands.length > 1) {
 				results.splice(resultsIndex,1,operands[nextOperandIndex]);
 			} else {

core/modules/indexers/back-indexer.js

@@ -0,0 +1,119 @@
+/*\
+title: $:/core/modules/indexers/back-indexer.js
+type: application/javascript
+module-type: indexer
+
+By parsing the tiddler text, indexes the tiddlers' back links, back transclusions, block level back links.
+
+\*/
+function BackIndexer(wiki) {
+	this.wiki = wiki;
+}
+
+BackIndexer.prototype.init = function() {
+	this.subIndexers = {
+		link: new BackSubIndexer(this,"extractLinks"),
+		transclude: new BackSubIndexer(this,"extractTranscludes"),
+	};
+};
+
+BackIndexer.prototype.rebuild = function() {
+	$tw.utils.each(this.subIndexers,function(subIndexer) {
+		subIndexer.rebuild();
+	});
+};
+
+BackIndexer.prototype.update = function(updateDescriptor) {
+	$tw.utils.each(this.subIndexers,function(subIndexer) {
+		subIndexer.update(updateDescriptor);
+	});
+};
+function BackSubIndexer(indexer,extractor) {
+	this.wiki = indexer.wiki;
+	this.indexer = indexer;
+	this.extractor = extractor;
+	/**
+	 * {
+	 *   [target title, e.g. tiddler title being linked to]:
+	 *     {
+	 * 		   [source title, e.g. tiddler title that has link syntax in its text]: true
+	 * 	   }
+	 * }
+	 */
+	this.index = null;
+}
+
+BackSubIndexer.prototype.init = function() {
+	// lazy init until first lookup
+	this.index = null;
+}
+
+BackSubIndexer.prototype._init = function() {
+	this.index = Object.create(null);
+	var self = this;
+	this.wiki.forEachTiddler(function(sourceTitle,tiddler) {
+		var newTargets = self._getTarget(tiddler);
+		$tw.utils.each(newTargets, function(target) {
+			if(!self.index[target]) {
+				self.index[target] = Object.create(null);
+			}
+			self.index[target][sourceTitle] = true;
+		});
+	});
+}
+
+BackSubIndexer.prototype.rebuild = function() {
+	this.index = null;
+}
+
+/*
+* Get things that is being referenced in the text, e.g. tiddler names in the link syntax.
+*/
+BackSubIndexer.prototype._getTarget = function(tiddler) {
+	var parser = this.wiki.parseText(tiddler.fields.type, tiddler.fields.text, {});
+	if(parser) {
+		return this.wiki[this.extractor](parser.tree);
+	}
+	return [];
+}
+
+BackSubIndexer.prototype.update = function(updateDescriptor) {
+	// lazy init/update until first lookup
+	if(!this.index) {
+		return;
+	}
+	var newTargets = [],
+	    oldTargets = [],
+	    self = this;
+	if(updateDescriptor.old.exists) {
+		oldTargets = this._getTarget(updateDescriptor.old.tiddler);
+	}
+	if(updateDescriptor.new.exists) {
+		newTargets = this._getTarget(updateDescriptor.new.tiddler);
+	}
+
+	$tw.utils.each(oldTargets,function(target) {
+		if(self.index[target]) {
+			delete self.index[target][updateDescriptor.old.tiddler.fields.title];
+		}
+	});
+	$tw.utils.each(newTargets,function(target) {
+		if(!self.index[target]) {
+			self.index[target] = Object.create(null);
+		}
+		self.index[target][updateDescriptor.new.tiddler.fields.title] = true;
+	});
+}
+
+BackSubIndexer.prototype.lookup = function(title) {
+	if(!this.index) {
+		this._init();
+	}
+	if(this.index[title]) {
+		return Object.keys(this.index[title]);
+	} else {
+		return [];
+	}
+}
+
+exports.BackIndexer = BackIndexer;

core/modules/indexers/backlinks-index.js

@@ -1,86 +0,0 @@
-/*\
-title: $:/core/modules/indexers/backlinks-indexer.js
-type: application/javascript
-module-type: indexer
-
-Indexes the tiddlers' backlinks
-
-\*/
-(function(){
-
-/*jslint node: true, browser: true */
-/*global modules: false */
-"use strict";
-
-
-function BacklinksIndexer(wiki) {
-	this.wiki = wiki;
-}
-
-BacklinksIndexer.prototype.init = function() {
-	this.index = null;
-}
-
-BacklinksIndexer.prototype.rebuild = function() {
-	this.index = null;
-}
-
-BacklinksIndexer.prototype._getLinks = function(tiddler) {
-	var parser =  this.wiki.parseText(tiddler.fields.type, tiddler.fields.text, {});
-	if(parser) {
-		return this.wiki.extractLinks(parser.tree);
-	}
-	return [];
-}
-
-BacklinksIndexer.prototype.update = function(updateDescriptor) {
-	if(!this.index) {
-		return;
-	}
-	var newLinks = [],
-	    oldLinks = [],
-	    self = this;
-	if(updateDescriptor.old.exists) {
-		oldLinks = this._getLinks(updateDescriptor.old.tiddler);
-	}
-	if(updateDescriptor.new.exists) {
-		newLinks = this._getLinks(updateDescriptor.new.tiddler);
-	}
-
-	$tw.utils.each(oldLinks,function(link) {
-		if(self.index[link]) {
-			delete self.index[link][updateDescriptor.old.tiddler.fields.title];
-		}
-	});
-	$tw.utils.each(newLinks,function(link) {
-		if(!self.index[link]) {
-			self.index[link] = Object.create(null);
-		}
-		self.index[link][updateDescriptor.new.tiddler.fields.title] = true;
-	});
-}
-
-BacklinksIndexer.prototype.lookup = function(title) {
-	if(!this.index) {
-		this.index = Object.create(null);
-		var self = this;
-		this.wiki.forEachTiddler(function(title,tiddler) {
-			var links = self._getLinks(tiddler);
-			$tw.utils.each(links, function(link) {
-				if(!self.index[link]) {
-					self.index[link] = Object.create(null);
-				}
-				self.index[link][title] = true;
-			});
-		});
-	}
-	if(this.index[title]) {
-		return Object.keys(this.index[title]);
-	} else {
-		return [];
-	}
-}
-
-exports.BacklinksIndexer = BacklinksIndexer;
-
-})();

core/modules/macros/csvtiddlers.js

@@ -35,9 +35,11 @@ exports.run = function(filter,format) {
 	// Collect all the fields
 	for(t=0;t<tiddlers.length; t++) {
 		tiddler = this.wiki.getTiddler(tiddlers[t]);
-		for(f in tiddler.fields) {
-			if(fields.indexOf(f) === -1) {
-				fields.push(f);
+		if(tiddler) {
+			for(f in tiddler.fields) {
+				if(fields.indexOf(f) === -1) {
+					fields.push(f);
+				}
 			}
 		}
 	}
@@ -60,8 +62,10 @@ exports.run = function(filter,format) {
 	for(var t=0;t<tiddlers.length; t++) {
 		row = [];
 		tiddler = this.wiki.getTiddler(tiddlers[t]);
-			for(f=0; f<fields.length; f++) {
-				row.push(quoteAndEscape(tiddler ? tiddler.getFieldString(fields[f]) || "" : ""));
+			if(tiddler) {
+				for(f=0; f<fields.length; f++) {
+					row.push(quoteAndEscape(tiddler ? tiddler.getFieldString(fields[f]) || "" : ""));
+				}	
 			}
 		output.push(row.join(","));
 	}

core/modules/parsers/textparser.js

@@ -14,10 +14,12 @@ The plain text parser processes blocks of source text into a degenerate parse tr
 
 var TextParser = function(type,text,options) {
 	this.tree = [{
-		type: "codeblock",
+		type: "genesis",
 		attributes: {
-			code: {type: "string", value: text},
-			language: {type: "string", value: type}
+			$type: {name: "$type", type: "string", value: "$codeblock"},
+			code: {name: "code", type: "string", value: text},
+			language: {name: "language", type: "string", value: type},
+			$remappable: {name: "$remappable", type:"string", value: "no"}
 		}
 	}];
 	this.source = text;
@@ -32,4 +34,3 @@ exports["text/css"] = TextParser;
 exports["application/x-tiddler-dictionary"] = TextParser;
 
 })();
-

core/modules/parsers/wikiparser/rules/conditional.js

@@ -0,0 +1,120 @@
+/*\
+title: $:/core/modules/parsers/wikiparser/rules/conditional.js
+type: application/javascript
+module-type: wikirule
+
+Conditional shortcut syntax
+
+```
+This is a <% if [{something}] %>Elephant<% elseif [{else}] %>Pelican<% else %>Crocodile<% endif %>
+```
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.name = "conditional";
+exports.types = {inline: true, block: true};
+
+exports.init = function(parser) {
+	this.parser = parser;
+	// Regexp to match
+	this.matchRegExp = /\<\%\s*if\s+/mg;
+	this.terminateIfRegExp = /\%\>/mg;
+};
+
+exports.findNextMatch = function(startPos) {
+	// Look for the next <% if shortcut
+	this.matchRegExp.lastIndex = startPos;
+	this.match = this.matchRegExp.exec(this.parser.source);
+	// If not found then return no match
+	if(!this.match) {
+		return undefined;
+	}
+	// Check for the next %>
+	this.terminateIfRegExp.lastIndex = this.match.index;
+	this.terminateIfMatch = this.terminateIfRegExp.exec(this.parser.source);
+	// If not found then return no match
+	if(!this.terminateIfMatch) {
+		return undefined;
+	}
+	// Return the position at which the construction was found
+	return this.match.index;
+};
+
+/*
+Parse the most recent match
+*/
+exports.parse = function() {
+	// Get the filter condition
+	var filterCondition = this.parser.source.substring(this.match.index + this.match[0].length,this.terminateIfMatch.index);
+	// Advance the parser position to past the %>
+	this.parser.pos = this.terminateIfMatch.index + this.terminateIfMatch[0].length;
+	// Parse the if clause
+	return this.parseIfClause(filterCondition);
+};
+
+exports.parseIfClause = function(filterCondition) {
+	// Create the list widget
+	var listWidget = {
+		type: "list",
+		tag: "$list",
+		isBlock: this.is.block,
+		children: [
+			{
+				type: "list-template",
+				tag: "$list-template"
+			},
+			{
+				type: "list-empty",
+				tag: "$list-empty"
+			}
+		]
+	};
+	$tw.utils.addAttributeToParseTreeNode(listWidget,"filter",filterCondition);
+	$tw.utils.addAttributeToParseTreeNode(listWidget,"variable","condition");
+	$tw.utils.addAttributeToParseTreeNode(listWidget,"limit","1");
+	// Check for an immediately following double linebreak
+	var hasLineBreak = !!$tw.utils.parseTokenRegExp(this.parser.source,this.parser.pos,/([^\S\n\r]*\r?\n(?:[^\S\n\r]*\r?\n|$))/g);
+	// Parse the body looking for else or endif
+	var reEndString = "\\<\\%\\s*(endif)\\s*\\%\\>|\\<\\%\\s*(else)\\s*\\%\\>|\\<\\%\\s*(elseif)\\s+([\\s\\S]+?)\\%\\>",
+		ex;
+	if(hasLineBreak) {
+		ex = this.parser.parseBlocksTerminatedExtended(reEndString);
+	} else {
+		var reEnd = new RegExp(reEndString,"mg");
+		ex = this.parser.parseInlineRunTerminatedExtended(reEnd,{eatTerminator: true});
+	}
+	// Put the body into the list template
+	listWidget.children[0].children = ex.tree;
+	// Check for an else or elseif
+	if(ex.match) {
+		if(ex.match[1] === "endif") {
+			// Nothing to do if we just found an endif
+		} else if(ex.match[2] === "else") {
+			// Check for an immediately following double linebreak
+			hasLineBreak = !!$tw.utils.parseTokenRegExp(this.parser.source,this.parser.pos,/([^\S\n\r]*\r?\n(?:[^\S\n\r]*\r?\n|$))/g);
+			// If we found an else then we need to parse the body looking for the endif
+			var reEndString = "\\<\\%\\s*(endif)\\s*\\%\\>",
+			ex;
+			if(hasLineBreak) {
+				ex = this.parser.parseBlocksTerminatedExtended(reEndString);
+			} else {
+				var reEnd = new RegExp(reEndString,"mg");
+				ex = this.parser.parseInlineRunTerminatedExtended(reEnd,{eatTerminator: true});
+			}
+			// Put the parsed content inside the list empty template
+			listWidget.children[1].children = ex.tree;
+		} else if(ex.match[3] === "elseif") {
+			// Parse the elseif clause by reusing this parser, passing the new filter condition
+			listWidget.children[1].children = this.parseIfClause(ex.match[4]);
+		}
+	}
+	// Return the parse tree node
+	return [listWidget];
+};
+
+})();

core/modules/parsers/wikiparser/rules/fnprocdef.js

@@ -49,11 +49,11 @@ exports.parse = function() {
 	if(this.match[3]) {
 		params = $tw.utils.parseParameterDefinition(this.match[4]);
 	}
-	// Is this a multiline definition?
+	// Is the remainder of the line blank after the parameter close paren?
 	var reEnd;
 	if(this.match[5]) {
-		// If so, the end of the body is marked with \end
-		reEnd = new RegExp("(\\r?\\n[^\\S\\n\\r]*\\\\end[^\\S\\n\\r]*(?:" + $tw.utils.escapeRegExp(this.match[2]) + ")?(?:$|\\r?\\n))","mg");
+		// If so, it is a multiline definition and the end of the body is marked with \end
+		reEnd = new RegExp("((:?^|\\r?\\n)[^\\S\\n\\r]*\\\\end[^\\S\\n\\r]*(?:" + $tw.utils.escapeRegExp(this.match[2]) + ")?(?:$|\\r?\\n))","mg");
 	} else {
 		// Otherwise, the end of the definition is marked by the end of the line
 		reEnd = /($|\r?\n)/mg;

core/modules/parsers/wikiparser/rules/macrodef.js

@@ -54,11 +54,11 @@ exports.parse = function() {
 			paramMatch = reParam.exec(paramString);
 		}
 	}
-	// Is this a multiline definition?
+	// Is the remainder of the \define line blank after the parameter close paren?
 	var reEnd;
 	if(this.match[3]) {
-		// If so, the end of the body is marked with \end
-		reEnd = new RegExp("(\\r?\\n[^\\S\\n\\r]*\\\\end[^\\S\\n\\r]*(?:" + $tw.utils.escapeRegExp(this.match[1]) + ")?(?:$|\\r?\\n))","mg");
+		// If so, it is a multiline definition and the end of the body is marked with \end
+		reEnd = new RegExp("((?:^|\\r?\\n)[^\\S\\n\\r]*\\\\end[^\\S\\n\\r]*(?:" + $tw.utils.escapeRegExp(this.match[1]) + ")?(?:$|\\r?\\n))","mg");
 	} else {
 		// Otherwise, the end of the definition is marked by the end of the line
 		reEnd = /($|\r?\n)/mg;

core/modules/parsers/wikiparser/rules/transcludeblock.js

@@ -26,6 +26,27 @@ exports.init = function(parser) {
 	this.matchRegExp = /\{\{([^\{\}\|]*)(?:\|\|([^\|\{\}]+))?(?:\|([^\{\}]+))?\}\}(?:\r?\n|$)/mg;
 };
 
+/*
+Reject the match if we don't have a template or text reference
+*/
+exports.findNextMatch = function(startPos) {
+	this.matchRegExp.lastIndex = startPos;
+	this.match = this.matchRegExp.exec(this.parser.source);
+	if(this.match) {
+		var template = $tw.utils.trim(this.match[2]),
+			textRef = $tw.utils.trim(this.match[1]);
+		// Bail if we don't have a template or text reference
+		if(!template && !textRef) {
+			return undefined;
+		} else {
+			return this.match.index;
+		}
+	} else {
+		return undefined;
+	}
+	return this.match ? this.match.index : undefined;
+};
+
 exports.parse = function() {
 	// Move past the match
 	this.parser.pos = this.matchRegExp.lastIndex;

core/modules/parsers/wikiparser/rules/transcludeinline.js

@@ -26,6 +26,27 @@ exports.init = function(parser) {
 	this.matchRegExp = /\{\{([^\{\}\|]*)(?:\|\|([^\|\{\}]+))?(?:\|([^\{\}]+))?\}\}/mg;
 };
 
+/*
+Reject the match if we don't have a template or text reference
+*/
+exports.findNextMatch = function(startPos) {
+	this.matchRegExp.lastIndex = startPos;
+	this.match = this.matchRegExp.exec(this.parser.source);
+	if(this.match) {
+		var template = $tw.utils.trim(this.match[2]),
+			textRef = $tw.utils.trim(this.match[1]);
+		// Bail if we don't have a template or text reference
+		if(!template && !textRef) {
+			return undefined;
+		} else {
+			return this.match.index;
+		}
+	} else {
+		return undefined;
+	}
+	return this.match ? this.match.index : undefined;
+};
+
 exports.parse = function() {
 	// Move past the match
 	this.parser.pos = this.matchRegExp.lastIndex;

core/modules/parsers/wikiparser/wikiparser.js

@@ -194,6 +194,7 @@ Parse any pragmas at the beginning of a block of parse text
 WikiParser.prototype.parsePragmas = function() {
 	var currentTreeBranch = this.tree;
 	while(true) {
+		var savedPos = this.pos;
 		// Skip whitespace
 		this.skipWhitespace();
 		// Check for the end of the text
@@ -204,6 +205,7 @@ WikiParser.prototype.parsePragmas = function() {
 		var nextMatch = this.findNextMatch(this.pragmaRules,this.pos);
 		// If not, just exit
 		if(!nextMatch || nextMatch.matchIndex !== this.pos) {
+			this.pos = savedPos;
 			break;
 		}
 		// Process the pragma rule
@@ -214,6 +216,8 @@ WikiParser.prototype.parsePragmas = function() {
 			subTree[0].children = [];
 			currentTreeBranch = subTree[0].children;
 		}
+		// Skip whitespace after the pragma
+		this.skipWhitespace();
 	}
 	return currentTreeBranch;
 };
@@ -223,7 +227,7 @@ Parse a block from the current position
 	terminatorRegExpString: optional regular expression string that identifies the end of plain paragraphs. Must not include capturing parenthesis
 */
 WikiParser.prototype.parseBlock = function(terminatorRegExpString) {
-	var terminatorRegExp = terminatorRegExpString ? new RegExp("(" + terminatorRegExpString + "|\\r?\\n\\r?\\n)","mg") : /(\r?\n\r?\n)/mg;
+	var terminatorRegExp = terminatorRegExpString ? new RegExp(terminatorRegExpString + "|\\r?\\n\\r?\\n","mg") : /(\r?\n\r?\n)/mg;
 	this.skipWhitespace();
 	if(this.pos >= this.sourceLength) {
 		return [];
@@ -264,11 +268,21 @@ WikiParser.prototype.parseBlocksUnterminated = function() {
 };
 
 /*
-Parse blocks of text until a terminating regexp is encountered
+Parse blocks of text until a terminating regexp is encountered. Wrapper for parseBlocksTerminatedExtended that just returns the parse tree
 */
 WikiParser.prototype.parseBlocksTerminated = function(terminatorRegExpString) {
-	var terminatorRegExp = new RegExp("(" + terminatorRegExpString + ")","mg"),
-		tree = [];
+	var ex = this.parseBlocksTerminatedExtended(terminatorRegExpString);
+	return ex.tree;
+};
+
+/*
+Parse blocks of text until a terminating regexp is encountered
+*/
+WikiParser.prototype.parseBlocksTerminatedExtended = function(terminatorRegExpString) {
+	var terminatorRegExp = new RegExp(terminatorRegExpString,"mg"),
+		result = {
+			tree: []
+		};
 	// Skip any whitespace
 	this.skipWhitespace();
 	//  Check if we've got the end marker
@@ -277,7 +291,7 @@ WikiParser.prototype.parseBlocksTerminated = function(terminatorRegExpString) {
 	// Parse the text into blocks
 	while(this.pos < this.sourceLength && !(match && match.index === this.pos)) {
 		var blocks = this.parseBlock(terminatorRegExpString);
-		tree.push.apply(tree,blocks);
+		result.tree.push.apply(result.tree,blocks);
 		// Skip any whitespace
 		this.skipWhitespace();
 		//  Check if we've got the end marker
@@ -286,8 +300,9 @@ WikiParser.prototype.parseBlocksTerminated = function(terminatorRegExpString) {
 	}
 	if(match && match.index === this.pos) {
 		this.pos = match.index + match[0].length;
+		result.match = match;
 	}
-	return tree;
+	return result;
 };
 
 /*
@@ -330,6 +345,11 @@ WikiParser.prototype.parseInlineRunUnterminated = function(options) {
 };
 
 WikiParser.prototype.parseInlineRunTerminated = function(terminatorRegExp,options) {
+	var ex = this.parseInlineRunTerminatedExtended(terminatorRegExp,options);
+	return ex.tree;
+};
+
+WikiParser.prototype.parseInlineRunTerminatedExtended = function(terminatorRegExp,options) {
 	options = options || {};
 	var tree = [];
 	// Find the next occurrence of the terminator
@@ -349,7 +369,10 @@ WikiParser.prototype.parseInlineRunTerminated = function(terminatorRegExp,option
 				if(options.eatTerminator) {
 					this.pos += terminatorMatch[0].length;
 				}
-				return tree;
+				return {
+					match: terminatorMatch,
+					tree: tree
+				};
 			}
 		}
 		// Process any inline rule, along with the text preceding it
@@ -373,7 +396,9 @@ WikiParser.prototype.parseInlineRunTerminated = function(terminatorRegExp,option
 		this.pushTextWidget(tree,this.source.substr(this.pos),this.pos,this.sourceLength);
 	}
 	this.pos = this.sourceLength;
-	return tree;
+	return {
+		tree: tree
+	};
 };
 
 /*

core/modules/savers/github.js

@@ -31,7 +31,7 @@ GitHubSaver.prototype.save = function(text,method,callback) {
 		headers = {
 			"Accept": "application/vnd.github.v3+json",
 			"Content-Type": "application/json;charset=UTF-8",
-			"Authorization": "Basic " + window.btoa(username + ":" + password),
+			"Authorization": "Basic " + $tw.utils.base64Encode(username + ":" + password),
 			"If-None-Match": ""
 		};
 	// Bail if we don't have everything we need

core/modules/server/server.js

@@ -140,6 +140,11 @@ function sendResponse(request,response,statusCode,headers,data,encoding) {
 				return;
 			}
 		}
+	} else {
+		// RFC 7231, 6.1. Overview of Status Codes:
+		// Browser clients may cache 200, 203, 204, 206, 300, 301, 
+		// 404, 405, 410, 414, and 501 unless given explicit cache controls
+		headers["Cache-Control"] = headers["Cache-Control"] || "no-store";
 	}
 	/*
 	If the gzip=yes is set, check if the user agent permits compression. If so,

core/modules/startup/render.js

@@ -81,6 +81,8 @@ exports.startup = function() {
 		deferredChanges = Object.create(null);
 		$tw.hooks.invokeHook("th-page-refreshed");
 	}
+	var throttledRefresh = $tw.perf.report("throttledRefresh",refresh);
+
 	// Add the change event handler
 	$tw.wiki.addEventListener("change",$tw.perf.report("mainRefresh",function(changes) {
 		// Check if only tiddlers that are throttled have changed
@@ -101,7 +103,7 @@ exports.startup = function() {
 			if(isNaN(timeout)) {
 				timeout = THROTTLE_REFRESH_TIMEOUT;
 			}
-			timerId = setTimeout(refresh,timeout);
+			timerId = setTimeout(throttledRefresh,timeout);
 			$tw.utils.extend(deferredChanges,changes);
 		} else {
 			$tw.utils.extend(deferredChanges,changes);

core/modules/startup/windows.js

@@ -40,7 +40,7 @@ exports.startup = function() {
 			variables = $tw.utils.extend({},paramObject,{currentTiddler: title, "tv-window-id": windowID});
 		// Open the window
 		var srcWindow,
-		    srcDocument;
+			srcDocument;
 		// In case that popup blockers deny opening a new window
 		try {
 			srcWindow = window.open("","external-" + windowID,"scrollbars,width=" + width + ",height=" + height + (top ? ",top=" + top : "" ) + (left ? ",left=" + left : "" )),
@@ -52,10 +52,11 @@ exports.startup = function() {
 		$tw.windows[windowID] = srcWindow;
 		// Check for reopening the same window
 		if(srcWindow.haveInitialisedWindow) {
+			srcWindow.focus();
 			return;
 		}
 		// Initialise the document
-		srcDocument.write("<html><head></head><body class='tc-body tc-single-tiddler-window'></body></html>");
+		srcDocument.write("<!DOCTYPE html><head></head><body class='tc-body tc-single-tiddler-window'></body></html>");
 		srcDocument.close();
 		srcDocument.title = windowTitle;
 		srcWindow.addEventListener("beforeunload",function(event) {

core/modules/syncer.js

@@ -24,7 +24,7 @@ Syncer.prototype.titleSyncPollingInterval = "$:/config/SyncPollingInterval";
 Syncer.prototype.titleSyncDisableLazyLoading = "$:/config/SyncDisableLazyLoading";
 Syncer.prototype.titleSavedNotification = "$:/language/Notifications/Save/Done";
 Syncer.prototype.titleSyncThrottleInterval = "$:/config/SyncThrottleInterval";
-Syncer.prototype.taskTimerInterval = 1 * 1000; // Interval for sync timer
+Syncer.prototype.taskTimerInterval = 0.25 * 1000; // Interval for sync timer
 Syncer.prototype.throttleInterval = 1 * 1000; // Defer saving tiddlers if they've changed in the last 1s...
 Syncer.prototype.errorRetryInterval = 5 * 1000; // Interval to retry after an error
 Syncer.prototype.fallbackInterval = 10 * 1000; // Unless the task is older than 10s
@@ -74,9 +74,11 @@ function Syncer(options) {
 	this.titlesHaveBeenLazyLoaded = {}; // Hashmap of titles of tiddlers that have already been lazily loaded from the server
 	// Timers
 	this.taskTimerId = null; // Timer for task dispatch
-	this.pollTimerId = null; // Timer for polling server
 	// Number of outstanding requests
 	this.numTasksInProgress = 0;
+	// True when we want to force an immediate sync from the server
+	this.forceSyncFromServer = false;
+	this.timestampLastSyncFromServer = new Date();
 	// Listen out for changes to tiddlers
 	this.wiki.addEventListener("change",function(changes) {
 		// Filter the changes to just include ones that are being synced
@@ -203,33 +205,37 @@ Syncer.prototype.readTiddlerInfo = function() {
 Checks whether the wiki is dirty (ie the window shouldn't be closed)
 */
 Syncer.prototype.isDirty = function() {
-	this.logger.log("Checking dirty status");
-	// Check tiddlers that are in the store and included in the filter function
-	var titles = this.getSyncedTiddlers();
-	for(var index=0; index<titles.length; index++) {
-		var title = titles[index],
-			tiddlerInfo = this.tiddlerInfo[title];
-		if(this.wiki.tiddlerExists(title)) {
-			if(tiddlerInfo) {
-				// If the tiddler is known on the server and has been modified locally then it needs to be saved to the server
-				if(this.wiki.getChangeCount(title) > tiddlerInfo.changeCount) {
+	var self = this;
+	function checkIsDirty() {
+		// Check tiddlers that are in the store and included in the filter function
+		var titles = self.getSyncedTiddlers();
+		for(var index=0; index<titles.length; index++) {
+			var title = titles[index],
+				tiddlerInfo = self.tiddlerInfo[title];
+			if(self.wiki.tiddlerExists(title)) {
+				if(tiddlerInfo) {
+					// If the tiddler is known on the server and has been modified locally then it needs to be saved to the server
+					if(self.wiki.getChangeCount(title) > tiddlerInfo.changeCount) {
+						return true;
+					}
+				} else {
+					// If the tiddler isn't known on the server then it needs to be saved to the server
 					return true;
 				}
-			} else {
-				// If the tiddler isn't known on the server then it needs to be saved to the server
+			}
+		}
+		// Check tiddlers that are known from the server but not currently in the store
+		titles = Object.keys(self.tiddlerInfo);
+		for(index=0; index<titles.length; index++) {
+			if(!self.wiki.tiddlerExists(titles[index])) {
+				// There must be a pending delete
 				return true;
 			}
 		}
+		return false;
 	}
-	// Check tiddlers that are known from the server but not currently in the store
-	titles = Object.keys(this.tiddlerInfo);
-	for(index=0; index<titles.length; index++) {
-		if(!this.wiki.tiddlerExists(titles[index])) {
-			// There must be a pending delete
-			return true;
-		}
-	}
-	return false;
+	var dirtyStatus = checkIsDirty();
+	return dirtyStatus;
 };
 
 /*
@@ -293,92 +299,16 @@ Syncer.prototype.getStatus = function(callback) {
 Synchronise from the server by reading the skinny tiddler list and queuing up loads for any tiddlers that we don't already have up to date
 */
 Syncer.prototype.syncFromServer = function() {
-	var self = this,
-		cancelNextSync = function() {
-			if(self.pollTimerId) {
-				clearTimeout(self.pollTimerId);
-				self.pollTimerId = null;
-			}
-		},
-		triggerNextSync = function() {
-			self.pollTimerId = setTimeout(function() {
-				self.pollTimerId = null;
-				self.syncFromServer.call(self);
-			},self.pollTimerInterval);
-		},
-		syncSystemFromServer = (self.wiki.getTiddlerText("$:/config/SyncSystemTiddlersFromServer") === "yes" ? true : false);
-	if(this.syncadaptor && this.syncadaptor.getUpdatedTiddlers) {
-		this.logger.log("Retrieving updated tiddler list");
-		cancelNextSync();
-		this.syncadaptor.getUpdatedTiddlers(self,function(err,updates) {
-			triggerNextSync();
-			if(err) {
-				self.displayError($tw.language.getString("Error/RetrievingSkinny"),err);
-				return;
-			}
-			if(updates) {
-				$tw.utils.each(updates.modifications,function(title) {
-					self.titlesToBeLoaded[title] = true;
-				});
-				$tw.utils.each(updates.deletions,function(title) {
-					if(syncSystemFromServer || !self.wiki.isSystemTiddler(title)) {
-						delete self.tiddlerInfo[title];
-						self.logger.log("Deleting tiddler missing from server:",title);
-						self.wiki.deleteTiddler(title);
-					}
-				});
-				if(updates.modifications.length > 0 || updates.deletions.length > 0) {
-					self.processTaskQueue();
-				}				
-			}
-		});
-	} else if(this.syncadaptor && this.syncadaptor.getSkinnyTiddlers) {
-		this.logger.log("Retrieving skinny tiddler list");
-		cancelNextSync();
-		this.syncadaptor.getSkinnyTiddlers(function(err,tiddlers) {
-			triggerNextSync();
-			// Check for errors
-			if(err) {
-				self.displayError($tw.language.getString("Error/RetrievingSkinny"),err);
-				return;
-			}
-			// Keep track of which tiddlers we already know about have been reported this time
-			var previousTitles = Object.keys(self.tiddlerInfo);
-			// Process each incoming tiddler
-			for(var t=0; t<tiddlers.length; t++) {
-				// Get the incoming tiddler fields, and the existing tiddler
-				var tiddlerFields = tiddlers[t],
-					incomingRevision = tiddlerFields.revision + "",
-					tiddler = self.wiki.tiddlerExists(tiddlerFields.title) && self.wiki.getTiddler(tiddlerFields.title),
-					tiddlerInfo = self.tiddlerInfo[tiddlerFields.title],
-					currRevision = tiddlerInfo ? tiddlerInfo.revision : null,
-					indexInPreviousTitles = previousTitles.indexOf(tiddlerFields.title);
-				if(indexInPreviousTitles !== -1) {
-					previousTitles.splice(indexInPreviousTitles,1);
-				}
-				// Ignore the incoming tiddler if it's the same as the revision we've already got
-				if(currRevision !== incomingRevision) {
-					// Only load the skinny version if we don't already have a fat version of the tiddler
-					if(!tiddler || tiddler.fields.text === undefined) {
-						self.storeTiddler(tiddlerFields);
-					}
-					// Do a full load of this tiddler
-					self.titlesToBeLoaded[tiddlerFields.title] = true;
-				}
-			}
-			// Delete any tiddlers that were previously reported but missing this time
-			$tw.utils.each(previousTitles,function(title) {
-				if(syncSystemFromServer || !self.wiki.isSystemTiddler(title)) {
-					delete self.tiddlerInfo[title];
-					self.logger.log("Deleting tiddler missing from server:",title);
-					self.wiki.deleteTiddler(title);
-				}
-			});
-			self.processTaskQueue();
-		});
+	if(this.canSyncFromServer()) {
+		this.forceSyncFromServer = true;
+		this.processTaskQueue();	
 	}
 };
 
+Syncer.prototype.canSyncFromServer = function() {
+	return !!this.syncadaptor.getUpdatedTiddlers || !!this.syncadaptor.getSkinnyTiddlers;
+}
+
 /*
 Force load a tiddler from the server
 */
@@ -510,7 +440,7 @@ Syncer.prototype.processTaskQueue = function() {
 				} else {
 					self.updateDirtyStatus();
 					// Process the next task
-					self.processTaskQueue.call(self);					
+					self.processTaskQueue.call(self);
 				}
 			});
 		} else {
@@ -518,31 +448,39 @@ Syncer.prototype.processTaskQueue = function() {
 			this.updateDirtyStatus();
 			// And trigger a timeout if there is a pending task
 			if(task === true) {
-				this.triggerTimeout();				
+				this.triggerTimeout(this.taskTimerInterval);
+			} else if(this.canSyncFromServer()) {
+				this.triggerTimeout(this.pollTimerInterval);
 			}
 		}
 	} else {
-		this.updateDirtyStatus();		
+		this.updateDirtyStatus();
+		this.triggerTimeout(this.taskTimerInterval);
 	}
 };
 
 Syncer.prototype.triggerTimeout = function(interval) {
 	var self = this;
-	if(!this.taskTimerId) {
-		this.taskTimerId = setTimeout(function() {
-			self.taskTimerId = null;
-			self.processTaskQueue.call(self);
-		},interval || self.taskTimerInterval);
+	if(this.taskTimerId) {
+		clearTimeout(this.taskTimerId);
 	}
+	this.taskTimerId = setTimeout(function() {
+		self.taskTimerId = null;
+		self.processTaskQueue.call(self);
+	},interval || self.taskTimerInterval);
 };
 
 /*
-Choose the next sync task. We prioritise saves, then deletes, then loads from the server
+Choose the next sync task. We prioritise saves to the server, then getting updates from the server, then deletes to the server, then loads from the server
 
-Returns either a task object, null if there's no upcoming tasks, or the boolean true if there are pending tasks that aren't yet due
+Returns either:
+* a task object
+* the boolean true if there are pending sync tasks that aren't yet due
+* null if there's no pending sync tasks (just the next poll)
 */
 Syncer.prototype.chooseNextTask = function() {
-	var thresholdLastSaved = (new Date()) - this.throttleInterval,
+	var now = new Date(),
+		thresholdLastSaved = now - this.throttleInterval,
 		havePending = null;
 	// First we look for tiddlers that have been modified locally and need saving back to the server
 	var titles = this.getSyncedTiddlers();
@@ -556,14 +494,18 @@ Syncer.prototype.chooseNextTask = function() {
 				isReadyToSave = !tiddlerInfo || !tiddlerInfo.timestampLastSaved || tiddlerInfo.timestampLastSaved < thresholdLastSaved;
 			if(hasChanged) {
 				if(isReadyToSave) {
-					return new SaveTiddlerTask(this,title); 					
+					return new SaveTiddlerTask(this,title);
 				} else {
 					havePending = true;
 				}
 			}
 		}
 	}
-	// Second, we check tiddlers that are known from the server but not currently in the store, and so need deleting on the server
+	// Second we check for an outstanding sync from server
+	if(this.forceSyncFromServer || (this.timestampLastSyncFromServer && (now.valueOf() >= (this.timestampLastSyncFromServer.valueOf() + this.pollTimerInterval)))) {
+		return new SyncFromServerTask(this);
+	}
+	// Third, we check tiddlers that are known from the server but not currently in the store, and so need deleting on the server
 	titles = Object.keys(this.tiddlerInfo);
 	for(index=0; index<titles.length; index++) {
 		title = titles[index];
@@ -573,13 +515,13 @@ Syncer.prototype.chooseNextTask = function() {
 			return new DeleteTiddlerTask(this,title);
 		}
 	}
-	// Check for tiddlers that need loading
+	// Finally, check for tiddlers that need loading
 	title = Object.keys(this.titlesToBeLoaded)[0];
 	if(title) {
 		delete this.titlesToBeLoaded[title];
 		return new LoadTiddlerTask(this,title);
 	}
-	// No tasks are ready
+	// No tasks are ready now, but might be in the future
 	return havePending;
 };
 
@@ -589,6 +531,10 @@ function SaveTiddlerTask(syncer,title) {
 	this.type = "save";
 }
 
+SaveTiddlerTask.prototype.toString = function() {
+	return "SAVE " + this.title;
+}
+
 SaveTiddlerTask.prototype.run = function(callback) {
 	var self = this,
 		changeCount = this.syncer.wiki.getChangeCount(this.title),
@@ -613,7 +559,6 @@ SaveTiddlerTask.prototype.run = function(callback) {
 			tiddlerInfo: self.syncer.tiddlerInfo[self.title]
 		});
 	} else {
-		this.syncer.logger.log(" Not Dispatching 'save' task:",this.title,"tiddler does not exist");
 		$tw.utils.nextTick(callback(null));
 	}
 };
@@ -624,6 +569,10 @@ function DeleteTiddlerTask(syncer,title) {
 	this.type = "delete";
 }
 
+DeleteTiddlerTask.prototype.toString = function() {
+	return "DELETE " + this.title;
+}
+
 DeleteTiddlerTask.prototype.run = function(callback) {
 	var self = this;
 	this.syncer.logger.log("Dispatching 'delete' task:",this.title);
@@ -647,6 +596,10 @@ function LoadTiddlerTask(syncer,title) {
 	this.type = "load";
 }
 
+LoadTiddlerTask.prototype.toString = function() {
+	return "LOAD " + this.title;
+}
+
 LoadTiddlerTask.prototype.run = function(callback) {
 	var self = this;
 	this.syncer.logger.log("Dispatching 'load' task:",this.title);
@@ -664,6 +617,91 @@ LoadTiddlerTask.prototype.run = function(callback) {
 	});
 };
 
+function SyncFromServerTask(syncer) {
+	this.syncer = syncer;
+	this.type = "syncfromserver";
+}
+
+SyncFromServerTask.prototype.toString = function() {
+	return "SYNCFROMSERVER";
+}
+
+SyncFromServerTask.prototype.run = function(callback) {
+	var self = this;
+	var syncSystemFromServer = (self.syncer.wiki.getTiddlerText("$:/config/SyncSystemTiddlersFromServer") === "yes" ? true : false);
+	var successCallback = function() {
+		self.syncer.forceSyncFromServer = false;
+		self.syncer.timestampLastSyncFromServer = new Date();
+		callback(null);
+	};
+	if(this.syncer.syncadaptor.getUpdatedTiddlers) {
+		this.syncer.syncadaptor.getUpdatedTiddlers(self.syncer,function(err,updates) {
+			if(err) {
+				self.syncer.displayError($tw.language.getString("Error/RetrievingSkinny"),err);
+				return callback(err);
+			}
+			if(updates) {
+				$tw.utils.each(updates.modifications,function(title) {
+					self.syncer.titlesToBeLoaded[title] = true;
+				});
+				$tw.utils.each(updates.deletions,function(title) {
+					if(syncSystemFromServer || !self.syncer.wiki.isSystemTiddler(title)) {
+						delete self.syncer.tiddlerInfo[title];
+						self.syncer.logger.log("Deleting tiddler missing from server:",title);
+						self.syncer.wiki.deleteTiddler(title);
+					}
+				});
+			}
+			return successCallback();
+		});
+	} else if(this.syncer.syncadaptor.getSkinnyTiddlers) {
+		this.syncer.syncadaptor.getSkinnyTiddlers(function(err,tiddlers) {
+			// Check for errors
+			if(err) {
+				self.syncer.displayError($tw.language.getString("Error/RetrievingSkinny"),err);
+				return callback(err);
+			}
+			// Keep track of which tiddlers we already know about have been reported this time
+			var previousTitles = Object.keys(self.syncer.tiddlerInfo);
+			// Process each incoming tiddler
+			for(var t=0; t<tiddlers.length; t++) {
+				// Get the incoming tiddler fields, and the existing tiddler
+				var tiddlerFields = tiddlers[t],
+					incomingRevision = tiddlerFields.revision + "",
+					tiddler = self.syncer.wiki.tiddlerExists(tiddlerFields.title) && self.syncer.wiki.getTiddler(tiddlerFields.title),
+					tiddlerInfo = self.syncer.tiddlerInfo[tiddlerFields.title],
+					currRevision = tiddlerInfo ? tiddlerInfo.revision : null,
+					indexInPreviousTitles = previousTitles.indexOf(tiddlerFields.title);
+				if(indexInPreviousTitles !== -1) {
+					previousTitles.splice(indexInPreviousTitles,1);
+				}
+				// Ignore the incoming tiddler if it's the same as the revision we've already got
+				if(currRevision !== incomingRevision) {
+					// Only load the skinny version if we don't already have a fat version of the tiddler
+					if(!tiddler || tiddler.fields.text === undefined) {
+						self.syncer.storeTiddler(tiddlerFields);
+					}
+					// Do a full load of this tiddler
+					self.syncer.titlesToBeLoaded[tiddlerFields.title] = true;
+				}
+			}
+			// Delete any tiddlers that were previously reported but missing this time
+			$tw.utils.each(previousTitles,function(title) {
+				if(syncSystemFromServer || !self.syncer.wiki.isSystemTiddler(title)) {
+					delete self.syncer.tiddlerInfo[title];
+					self.syncer.logger.log("Deleting tiddler missing from server:",title);
+					self.syncer.wiki.deleteTiddler(title);
+				}
+			});
+			self.syncer.forceSyncFromServer = false;
+			self.syncer.timestampLastSyncFromServer = new Date();
+			return successCallback();
+		});
+	} else {
+		return successCallback();
+	}
+};
+
 exports.Syncer = Syncer;
 
 })();

core/modules/utils/dom/dom.js

@@ -313,7 +313,7 @@ exports.collectDOMVariables = function(selectedNode,domNode,event) {
 			variables["dom-" + attribute.name] = attribute.value.toString();
 		});
 		
-		if(selectedNode.offsetLeft) {
+		if("offsetLeft" in selectedNode) {
 			// Add variables with a (relative and absolute) popup coordinate string for the selected node
 			var nodeRect = {
 				left: selectedNode.offsetLeft,
@@ -338,12 +338,12 @@ exports.collectDOMVariables = function(selectedNode,domNode,event) {
 		}
 	}
 	
-	if(domNode && domNode.offsetWidth) {
+	if(domNode && ("offsetWidth" in domNode)) {
 		variables["tv-widgetnode-width"] = domNode.offsetWidth.toString();
 		variables["tv-widgetnode-height"] = domNode.offsetHeight.toString();
 	}
 
-	if(event && event.clientX && event.clientY) {
+	if(event && ("clientX" in event) && ("clientY" in event)) {
 		if(selectedNode) {
 			// Add variables for event X and Y position relative to selected node
 			selectedNodeRect = selectedNode.getBoundingClientRect();

core/modules/utils/dom/http.js

@@ -187,7 +187,7 @@ HttpClientRequest.prototype.send = function(callback) {
 					for (var i=0; i<len; i++) {
 						binary += String.fromCharCode(bytes[i]);
 					}
-					resultVariables.data = window.btoa(binary);
+					resultVariables.data = $tw.utils.base64Encode(binary,true);
 				}
 				self.wiki.addTiddler(new $tw.Tiddler(self.wiki.getTiddler(requestTrackerTitle),{
 					status: completionCode,
@@ -289,7 +289,7 @@ exports.httpRequest = function(options) {
 				return;
 			}
 		// Something went wrong
-		options.callback($tw.language.getString("Error/XMLHttpRequest") + ": " + this.status,null,this);
+		options.callback($tw.language.getString("Error/XMLHttpRequest") + ": " + this.status,this[returnProp],this);
 		}
 	};
 	// Handle progress

core/modules/utils/fakedom.js

@@ -104,7 +104,11 @@ TW_Element.prototype.setAttribute = function(name,value) {
 	if(this.isRaw) {
 		throw "Cannot setAttribute on a raw TW_Element";
 	}
-	this.attributes[name] = value + "";
+	if(name === "style") {
+		this.style = value;
+	} else {
+		this.attributes[name] = value + "";
+	}
 };
 
 TW_Element.prototype.setAttributeNS = function(namespace,name,value) {

core/modules/utils/filesystem.js

@@ -316,11 +316,13 @@ Options include:
 	pathFilters: optional array of filters to be used to generate the base path
 	wiki: optional wiki for evaluating the pathFilters
 	fileInfo: an existing fileInfo object to check against
+	fileInfo.overwrite: if true, turns off filename clash numbers (defaults to false)
 */
 exports.generateTiddlerFilepath = function(title,options) {
 	var directory = options.directory || "",
 		extension = options.extension || "",
 		originalpath = (options.fileInfo && options.fileInfo.originalpath) ? options.fileInfo.originalpath : "",
+		overwrite = options.fileInfo && options.fileInfo.overwrite || false,
 		filepath;
 	// Check if any of the pathFilters applies
 	if(options.pathFilters && options.wiki) {
@@ -381,19 +383,20 @@ exports.generateTiddlerFilepath = function(title,options) {
 			filepath += char.charCodeAt(0).toString();
 		});
 	}
-	// Add a uniquifier if the file already exists
-	var fullPath, oldPath = (options.fileInfo) ? options.fileInfo.filepath : undefined,
+	// Add a uniquifier if the file already exists (default)
+	var fullPath = path.resolve(directory, filepath + extension);
+	if (!overwrite) {
+		var oldPath = (options.fileInfo) ? options.fileInfo.filepath : undefined,
 		count = 0;
-	do {
-		fullPath = path.resolve(directory,filepath + (count ? "_" + count : "") + extension);
-		if(oldPath && oldPath == fullPath) {
-			break;
-		}
-		count++;
-	} while(fs.existsSync(fullPath));
+		do {
+			fullPath = path.resolve(directory,filepath + (count ? "_" + count : "") + extension);
+			if(oldPath && oldPath == fullPath) break;
+			count++;
+		} while(fs.existsSync(fullPath));
+	}
 	// If the last write failed with an error, or if path does not start with:
 	//	the resolved options.directory, the resolved wikiPath directory, the wikiTiddlersPath directory, 
-	//	or the 'originalpath' directory, then $tw.utils.encodeURIComponentExtended() and resolve to tiddler directory.
+	//	or the 'originalpath' directory, then $tw.utils.encodeURIComponentExtended() and resolve to options.directory.
 	var writePath = $tw.hooks.invokeHook("th-make-tiddler-path",fullPath,fullPath),
 		encode = (options.fileInfo || {writeError: false}).writeError == true;
 	if(!encode) {

core/modules/utils/utils.js

@@ -819,18 +819,50 @@ exports.hashString = function(str) {
 	},0);
 };
 
+/*
+Cryptographic hash function as used by sha256 filter operator
+options.length .. number of characters returned defaults to 64
+*/
+exports.sha256 = function(str, options) {
+	options = options || {}
+	return sjcl.codec.hex.fromBits(sjcl.hash.sha256.hash(str)).substr(0,options.length || 64);
+}
+
+/*
+Base64 utility functions that work in either browser or Node.js
+*/
+if(typeof window !== 'undefined') {
+	exports.btoa = function(binstr) { return window.btoa(binstr); }
+	exports.atob = function(b64) { return window.atob(b64); }
+} else {
+	exports.btoa = function(binstr) {
+		return Buffer.from(binstr, 'binary').toString('base64');
+	}
+	exports.atob = function(b64) {
+		return Buffer.from(b64, 'base64').toString('binary');
+	}
+}
+
 /*
 Decode a base64 string
 */
-exports.base64Decode = function(string64) {
-	return base64utf8.base64.decode.call(base64utf8,string64);
+exports.base64Decode = function(string64,binary,urlsafe) {
+	var encoded = urlsafe ? string64.replace(/_/g,'/').replace(/-/g,'+') : string64;
+	if(binary) return exports.atob(encoded)
+	else return base64utf8.base64.decode.call(base64utf8,encoded);
 };
 
 /*
 Encode a string to base64
 */
-exports.base64Encode = function(string64) {
-	return base64utf8.base64.encode.call(base64utf8,string64);
+exports.base64Encode = function(string64,binary,urlsafe) {
+	var encoded;
+	if(binary) encoded = exports.btoa(string64);
+	else encoded = base64utf8.base64.encode.call(base64utf8,string64);
+	if(urlsafe) {
+		encoded = encoded.replace(/\+/g,'-').replace(/\//g,'_');
+	}
+	return encoded;
 };
 
 /*
@@ -899,7 +931,7 @@ IE does not have sign function
 */
 exports.sign = Math.sign || function(x) {
 	x = +x; // convert to a number
-	if (x === 0 || isNaN(x)) {
+	if(x === 0 || isNaN(x)) {
 		return x;
 	}
 	return x > 0 ? 1 : -1;
@@ -912,7 +944,7 @@ exports.strEndsWith = function(str,ending,position) {
 	if(str.endsWith) {
 		return str.endsWith(ending,position);
 	} else {
-		if (typeof position !== 'number' || !isFinite(position) || Math.floor(position) !== position || position > str.length) {
+		if(typeof position !== 'number' || !isFinite(position) || Math.floor(position) !== position || position > str.length) {
 			position = str.length;
 		}
 		position -= ending.length;

core/modules/widgets/action-deletefield.js

@@ -37,6 +37,7 @@ Compute the internal state of the widget
 DeleteFieldWidget.prototype.execute = function() {
 	this.actionTiddler = this.getAttribute("$tiddler",this.getVariable("currentTiddler"));
 	this.actionField = this.getAttribute("$field",null);
+	this.actionTimestamp = this.getAttribute("$timestamp","yes") === "yes";
 };
 
 /*
@@ -69,11 +70,15 @@ DeleteFieldWidget.prototype.invokeAction = function(triggeringWidget,event) {
 		$tw.utils.each(this.attributes,function(attribute,name) {
 			if(name.charAt(0) !== "$" && name !== "title") {
 				removeFields[name] = undefined;
-				hasChanged = true;
+				if(name in tiddler.fields) {
+					hasChanged = true;
+				}
 			}
 		});
 		if(hasChanged) {
-			this.wiki.addTiddler(new $tw.Tiddler(this.wiki.getCreationFields(),tiddler,removeFields,this.wiki.getModificationFields()));
+			var creationFields = this.actionTimestamp ? this.wiki.getCreationFields() : {};
+			var modificationFields = this.actionTimestamp ? this.wiki.getModificationFields() : {};
+			this.wiki.addTiddler(new $tw.Tiddler(creationFields,tiddler,removeFields,modificationFields));
 		}
 	}
 	return true; // Action was invoked

core/modules/widgets/browse.js

@@ -70,6 +70,11 @@ BrowseWidget.prototype.render = function(parent,nextSibling) {
 		}
 		return false;
 	},false);
+	// Assign data- attributes
+	this.assignAttributes(domNode,{
+		sourcePrefix: "data-",
+		destPrefix: "data-"
+	});
 	// Insert element
 	parent.insertBefore(domNode,nextSibling);
 	this.renderChildren(domNode,null);
@@ -95,6 +100,11 @@ BrowseWidget.prototype.execute = function() {
 Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
 */
 BrowseWidget.prototype.refresh = function(changedTiddlers) {
+	var changedAttributes = this.computeAttributes();
+	if($tw.utils.count(changedAttributes) > 0) {
+		this.refreshSelf();
+		return true;	
+	}
 	return false;
 };
 

core/modules/widgets/button.js

@@ -59,6 +59,11 @@ ButtonWidget.prototype.render = function(parent,nextSibling) {
 		$tw.utils.pushTop(classes,"tc-popup-handle");
 	}
 	domNode.className = classes.join(" ");
+	// Assign data- attributes
+	this.assignAttributes(domNode,{
+		sourcePrefix: "data-",
+		destPrefix: "data-"
+	});
 	// Assign other attributes
 	if(this.style) {
 		domNode.setAttribute("style",this.style);
@@ -250,7 +255,7 @@ ButtonWidget.prototype.updateDomNodeClasses = function() {
 	//Add new classes from updated class attribute.
 	$tw.utils.pushTop(domNodeClasses,newClasses);
 	this.domNode.className = domNodeClasses.join(" ");
-}
+};
 
 /*
 Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
@@ -260,8 +265,15 @@ ButtonWidget.prototype.refresh = function(changedTiddlers) {
 	if(changedAttributes.actions || changedAttributes.to || changedAttributes.message || changedAttributes.param || changedAttributes.set || changedAttributes.setTo || changedAttributes.popup || changedAttributes.hover || changedAttributes.selectedClass || changedAttributes.style || changedAttributes.dragFilter || changedAttributes.dragTiddler || (this.set && changedTiddlers[this.set]) || (this.popup && changedTiddlers[this.popup]) || (this.popupTitle && changedTiddlers[this.popupTitle]) || changedAttributes.popupAbsCoords || changedAttributes.setTitle || changedAttributes.setField || changedAttributes.setIndex || changedAttributes.popupTitle || changedAttributes.disabled || changedAttributes["default"]) {
 		this.refreshSelf();
 		return true;
-	} else if(changedAttributes["class"]) {
-		this.updateDomNodeClasses();
+	} else {
+		if(changedAttributes["class"]) {
+			this.updateDomNodeClasses();
+		}
+		this.assignAttributes(this.domNodes[0],{
+			changedAttributes: changedAttributes,
+			sourcePrefix: "data-",
+			destPrefix: "data-"
+		});
 	}
 	return this.refreshChildren(changedTiddlers);
 };

core/modules/widgets/checkbox.js

@@ -53,6 +53,11 @@ CheckboxWidget.prototype.render = function(parent,nextSibling) {
 	this.labelDomNode.appendChild(this.inputDomNode);
 	this.spanDomNode = this.document.createElement("span");
 	this.labelDomNode.appendChild(this.spanDomNode);
+	// Assign data- attributes
+	this.assignAttributes(this.inputDomNode,{
+		sourcePrefix: "data-",
+		destPrefix: "data-"
+	});
 	// Add a click event handler
 	$tw.utils.addEventListeners(this.inputDomNode,[
 		{name: "change", handlerObject: this, handlerMethod: "handleChangeEvent"}
@@ -325,6 +330,11 @@ CheckboxWidget.prototype.refresh = function(changedTiddlers) {
 				$tw.utils.removeClass(this.labelDomNode,"tc-checkbox-checked");
 			}
 		}
+		this.assignAttributes(this.inputDomNode,{
+			changedAttributes: changedAttributes,
+			sourcePrefix: "data-",
+			destPrefix: "data-"
+		});
 		return this.refreshChildren(changedTiddlers) || refreshed;
 	}
 };
@@ -332,3 +342,4 @@ CheckboxWidget.prototype.refresh = function(changedTiddlers) {
 exports.checkbox = CheckboxWidget;
 
 })();
+	

core/modules/widgets/draggable.js

@@ -52,6 +52,11 @@ DraggableWidget.prototype.render = function(parent,nextSibling) {
 		classes.push("tc-draggable");
 	}
 	domNode.setAttribute("class",classes.join(" "));
+	// Assign data- attributes and style. attributes
+	this.assignAttributes(domNode,{
+		sourcePrefix: "data-",
+		destPrefix: "data-"
+	});
 	// Insert the node into the DOM and render any children
 	parent.insertBefore(domNode,nextSibling);
 	this.renderChildren(domNode,null);
@@ -108,17 +113,23 @@ DraggableWidget.prototype.updateDomNodeClasses = function() {
 Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
 */
 DraggableWidget.prototype.refresh = function(changedTiddlers) {
-	var changedAttributes = this.computeAttributes(),
-		changedAttributesCount = $tw.utils.count(changedAttributes);
-	if(changedAttributesCount === 1 && changedAttributes["class"]) {
-		this.updateDomNodeClasses();
-	} else if(changedAttributesCount > 0) {
+	var changedAttributes = this.computeAttributes();
+	if(changedAttributes.tag || changedAttributes.selector || changedAttributes.dragimagetype || changedAttributes.enable || changedAttributes.startactions || changedAttributes.endactions) {
 		this.refreshSelf();
 		return true;
+	} else {
+		if(changedAttributes["class"]) {
+			this.updateDomNodeClasses();
+		}
+		this.assignAttributes(this.domNodes[0],{
+			changedAttributes: changedAttributes,
+			sourcePrefix: "data-",
+			destPrefix: "data-"
+		});
 	}
 	return this.refreshChildren(changedTiddlers);
 };
 
 exports.draggable = DraggableWidget;
 
-})();
+})();

core/modules/widgets/droppable.js

@@ -42,6 +42,11 @@ DroppableWidget.prototype.render = function(parent,nextSibling) {
 	domNode = this.document.createElement(tag);
 	this.domNode = domNode;
 	this.assignDomNodeClasses();
+	// Assign data- attributes and style. attributes
+	this.assignAttributes(domNode,{
+		sourcePrefix: "data-",
+		destPrefix: "data-"
+	});
 	// Add event handlers
 	if(this.droppableEnable) {
 		$tw.utils.addEventListeners(domNode,[
@@ -166,8 +171,15 @@ DroppableWidget.prototype.refresh = function(changedTiddlers) {
 	if(changedAttributes.tag || changedAttributes.enable || changedAttributes.disabledClass || changedAttributes.actions || changedAttributes.effect) {
 		this.refreshSelf();
 		return true;
-	} else if(changedAttributes["class"]) {
-		this.assignDomNodeClasses();
+	} else {
+		if(changedAttributes["class"]) {
+			this.assignDomNodeClasses();
+		}
+		this.assignAttributes(this.domNodes[0],{
+			changedAttributes: changedAttributes,
+			sourcePrefix: "data-",
+			destPrefix: "data-"
+		});
 	}
 	return this.refreshChildren(changedTiddlers);
 };

core/modules/widgets/edit.js

@@ -90,7 +90,7 @@ Selectively refreshes the widget if needed. Returns true if the widget or any of
 EditWidget.prototype.refresh = function(changedTiddlers) {
 	var changedAttributes = this.computeAttributes();
 	// Refresh if an attribute has changed, or the type associated with the target tiddler has changed
-	if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.index || changedAttributes.tabindex || changedAttributes.cancelPopups || changedAttributes.inputActions || changedAttributes.refreshTitle || changedAttributes.autocomplete || (changedTiddlers[this.editTitle] && this.getEditorType() !== this.editorType)) {
+	if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.index || changedAttributes.tabindex || changedAttributes.cancelPopups || changedAttributes.inputActions || changedAttributes.refreshTitle || changedAttributes.autocomplete || (this.getEditorType() !== this.editorType)) {
 		this.refreshSelf();
 		return true;
 	} else {

core/modules/widgets/image.js

@@ -58,24 +58,25 @@ ImageWidget.prototype.render = function(parent,nextSibling) {
 		if(this.wiki.isImageTiddler(this.imageSource)) {
 			var type = tiddler.fields.type,
 				text = tiddler.fields.text,
-				_canonical_uri = tiddler.fields._canonical_uri;
+				_canonical_uri = tiddler.fields._canonical_uri,
+				typeInfo = $tw.config.contentTypeInfo[type] || {},
+				deserializerType = typeInfo.deserializerType || type;
 			// If the tiddler has body text then it doesn't need to be lazily loaded
 			if(text) {
-				// Render the appropriate element for the image type
-				switch(type) {
-					case "application/pdf":
+				// Render the appropriate element for the image type by looking up the encoding in the content type info
+				var encoding = typeInfo.encoding || "utf8";
+				if (encoding === "base64") {
+					// .pdf .png .jpg etc.
+					src = "data:" + deserializerType + ";base64," + text;
+					if (deserializerType === "application/pdf") {
 						tag = "embed";
-						src = "data:application/pdf;base64," + text;
-						break;
-					case "image/svg+xml":
-						src = "data:image/svg+xml," + encodeURIComponent(text);
-						break;
-					default:
-						src = "data:" + type + ";base64," + text;
-						break;
+					}
+				} else {
+					// .svg .tid .xml etc.
+					src = "data:" + deserializerType + "," + encodeURIComponent(text);
 				}
 			} else if(_canonical_uri) {
-				switch(type) {
+				switch(deserializerType) {
 					case "application/pdf":
 						tag = "embed";
 						src = _canonical_uri;
@@ -99,6 +100,9 @@ ImageWidget.prototype.render = function(parent,nextSibling) {
 	if(this.imageClass) {
 		domNode.setAttribute("class",this.imageClass);
 	}
+	if(this.imageUsemap) {
+	    	domNode.setAttribute("usemap",this.imageUsemap);
+	}
 	if(this.imageWidth) {
 		domNode.setAttribute("width",this.imageWidth);
 	}
@@ -138,6 +142,7 @@ ImageWidget.prototype.execute = function() {
 	this.imageWidth = this.getAttribute("width");
 	this.imageHeight = this.getAttribute("height");
 	this.imageClass = this.getAttribute("class");
+    	this.imageUsemap = this.getAttribute("usemap");
 	this.imageTooltip = this.getAttribute("tooltip");
 	this.imageAlt = this.getAttribute("alt");
 	this.lazyLoading = this.getAttribute("loading");
@@ -148,7 +153,7 @@ Selectively refreshes the widget if needed. Returns true if the widget or any of
 */
 ImageWidget.prototype.refresh = function(changedTiddlers) {
 	var changedAttributes = this.computeAttributes();
-	if(changedAttributes.source || changedAttributes.width || changedAttributes.height || changedAttributes["class"] || changedAttributes.tooltip || changedTiddlers[this.imageSource]) {
+	if(changedAttributes.source || changedAttributes.width || changedAttributes.height || changedAttributes["class"] || changedAttributes.usemap || changedAttributes.tooltip || changedTiddlers[this.imageSource]) {
 		this.refreshSelf();
 		return true;
 	} else {

core/modules/widgets/importvariables.js

@@ -49,7 +49,7 @@ ImportVariablesWidget.prototype.execute = function(tiddlerList) {
 	this.tiddlerList = tiddlerList || this.wiki.filterTiddlers(this.filter,this);
 	// Accumulate the <$set> widgets from each tiddler
 	$tw.utils.each(this.tiddlerList,function(title) {
-		var parser = widgetPointer.wiki.parseTiddler(title,{parseAsInline:true, configTrimWhiteSpace:true});
+		var parser = widgetPointer.wiki.parseTiddler(title,{parseAsInline:true, configTrimWhiteSpace:false});
 		if(parser) {
 			var parseTreeNode = parser.tree[0];
 			while(parseTreeNode && ["setvariable","set","parameters"].indexOf(parseTreeNode.type) !== -1) {

core/modules/widgets/link.js

@@ -43,6 +43,11 @@ LinkWidget.prototype.render = function(parent,nextSibling) {
 	} else {
 		// Just insert the link text
 		var domNode = this.document.createElement("span");
+		// Assign data- attributes
+		this.assignAttributes(domNode,{
+			sourcePrefix: "data-",
+			destPrefix: "data-"
+		});
 		parent.insertBefore(domNode,nextSibling);
 		this.renderChildren(domNode,null);
 		this.domNodes.push(domNode);
@@ -138,6 +143,11 @@ LinkWidget.prototype.renderLink = function(parent,nextSibling) {
 			widget: this
 		});
 	}
+	// Assign data- attributes
+	this.assignAttributes(domNode,{
+		sourcePrefix: "data-",
+		destPrefix: "data-"
+	});
 	// Insert the link into the DOM and render any children
 	parent.insertBefore(domNode,nextSibling);
 	this.renderChildren(domNode,null);
@@ -207,8 +217,7 @@ Selectively refreshes the widget if needed. Returns true if the widget or any of
 */
 LinkWidget.prototype.refresh = function(changedTiddlers) {
 	var changedAttributes = this.computeAttributes();
-	if(changedAttributes.to || changedTiddlers[this.to] || changedAttributes["aria-label"] || changedAttributes.tooltip ||
-		changedAttributes["class"] || changedAttributes.tabindex || changedAttributes.draggable || changedAttributes.tag) {
+	if($tw.utils.count(changedAttributes) > 0 || changedTiddlers[this.to]) {
 		this.refreshSelf();
 		return true;
 	}
@@ -218,3 +227,4 @@ LinkWidget.prototype.refresh = function(changedTiddlers) {
 exports.link = LinkWidget;
 
 })();
+	

core/modules/widgets/list.js

@@ -28,6 +28,18 @@ Inherit from the base widget class
 */
 ListWidget.prototype = new Widget();
 
+ListWidget.prototype.initialise = function(parseTreeNode,options) {
+	// Bail if parseTreeNode is undefined, meaning that the ListWidget constructor was called without any arguments so that it can be subclassed
+	if(parseTreeNode === undefined) {
+		return;
+	}
+	// First call parent constructor to set everything else up
+	Widget.prototype.initialise.call(this,parseTreeNode,options);
+	// Now look for <$list-template> and <$list-empty> widgets as immediate child widgets
+	// This is safe to do during initialization because parse trees never change after creation
+	this.findExplicitTemplates();
+}
+
 /*
 Render this widget into the DOM
 */
@@ -38,8 +50,8 @@ ListWidget.prototype.render = function(parent,nextSibling) {
 		$tw.modules.applyMethods("storyview",this.storyViews);
 	}
 	this.parentDomNode = parent;
-	this.computeAttributes();
-	this.execute();
+	var changedAttributes = this.computeAttributes();
+	this.execute(changedAttributes);
 	this.renderChildren(parent,nextSibling);
 	// Construct the storyview
 	var StoryView = this.storyViews[this.storyViewName];
@@ -59,7 +71,8 @@ ListWidget.prototype.render = function(parent,nextSibling) {
 /*
 Compute the internal state of the widget
 */
-ListWidget.prototype.execute = function() {
+ListWidget.prototype.execute = function(changedAttributes) {
+	var self = this;
 	// Get our attributes
 	this.template = this.getAttribute("template");
 	this.editTemplate = this.getAttribute("editTemplate");
@@ -67,6 +80,10 @@ ListWidget.prototype.execute = function() {
 	this.counterName = this.getAttribute("counter");
 	this.storyViewName = this.getAttribute("storyview");
 	this.historyTitle = this.getAttribute("history");
+	// Create join template only if needed
+	if(this.join === undefined || (changedAttributes && changedAttributes.join)) {
+		this.join = this.makeJoinTemplate();
+	}
 	// Compose the list elements
 	this.list = this.getTiddlerList();
 	var members = [],
@@ -85,18 +102,57 @@ ListWidget.prototype.execute = function() {
 	this.history = [];
 };
 
+ListWidget.prototype.findExplicitTemplates = function() {
+	var self = this;
+	this.explicitListTemplate = null;
+	this.explicitEmptyTemplate = null;
+	this.explicitJoinTemplate = null;
+	this.hasTemplateInBody = false;
+	var searchChildren = function(childNodes) {
+		var foundInlineTemplate = false;
+		$tw.utils.each(childNodes,function(node) {
+			if(node.type === "list-template") {
+				self.explicitListTemplate = node.children;
+			} else if(node.type === "list-empty") {
+				self.explicitEmptyTemplate = node.children;
+			} else if(node.type === "list-join") {
+				self.explicitJoinTemplate = node.children;
+			} else if(node.type === "element" && node.tag === "p") {
+				searchChildren(node.children);
+				foundInlineTemplate = true;
+			} else {
+				foundInlineTemplate = true;
+			}
+		});
+		return foundInlineTemplate;
+	};
+	this.hasTemplateInBody = searchChildren(this.parseTreeNode.children);
+}
+
 ListWidget.prototype.getTiddlerList = function() {
+	var limit = $tw.utils.getInt(this.getAttribute("limit",""),undefined);
 	var defaultFilter = "[!is[system]sort[title]]";
-	return this.wiki.filterTiddlers(this.getAttribute("filter",defaultFilter),this);
+	var results = this.wiki.filterTiddlers(this.getAttribute("filter",defaultFilter),this);
+	if(limit !== undefined) {
+		if(limit >= 0) {
+			results = results.slice(0,limit);
+		} else {
+			results = results.slice(limit);
+		}
+	}
+	return results;
 };
 
 ListWidget.prototype.getEmptyMessage = function() {
 	var parser,
-		emptyMessage = this.getAttribute("emptyMessage","");
-	// this.wiki.parseText() calls 
-	// new Parser(..), which should only be done, if needed, because it's heavy!
-	if (emptyMessage === "") {
-		return [];
+		emptyMessage = this.getAttribute("emptyMessage");
+	// If emptyMessage attribute is not present or empty then look for an explicit empty template
+	if(!emptyMessage) {
+		if(this.explicitEmptyTemplate) {
+			return this.explicitEmptyTemplate;
+		} else {
+			return [];
+		}
 	}
 	parser = this.wiki.parseText("text/vnd.tiddlywiki",emptyMessage,{parseAsInline: true});
 	if(parser) {
@@ -106,6 +162,24 @@ ListWidget.prototype.getEmptyMessage = function() {
 	}
 };
 
+/*
+Compose the template for a join between list items
+*/
+ListWidget.prototype.makeJoinTemplate = function() {
+	var parser,
+		join = this.getAttribute("join","");
+	if(join) {
+		parser = this.wiki.parseText("text/vnd.tiddlywiki",join,{parseAsInline:true})
+		if(parser) {
+			return parser.tree;
+		} else {
+			return [];
+		}
+	} else {
+		return this.explicitJoinTemplate; // May be null, and that's fine
+	}
+};
+
 /*
 Compose the template for a list item
 */
@@ -114,6 +188,7 @@ ListWidget.prototype.makeItemTemplate = function(title,index) {
 	var tiddler = this.wiki.getTiddler(title),
 		isDraft = tiddler && tiddler.hasField("draft.of"),
 		template = this.template,
+		join = this.join,
 		templateTree;
 	if(isDraft && this.editTemplate) {
 		template = this.editTemplate;
@@ -122,22 +197,29 @@ ListWidget.prototype.makeItemTemplate = function(title,index) {
 	if(template) {
 		templateTree = [{type: "transclude", attributes: {tiddler: {type: "string", value: template}}}];
 	} else {
+		// Check for child nodes of the list widget
 		if(this.parseTreeNode.children && this.parseTreeNode.children.length > 0) {
-			templateTree = this.parseTreeNode.children;
-		} else {
+			// Check for a <$list-item> widget
+			if(this.explicitListTemplate) {
+				templateTree = this.explicitListTemplate;
+			} else if(this.hasTemplateInBody) {
+				templateTree = this.parseTreeNode.children;
+			}
+		}
+		if(!templateTree || templateTree.length === 0) {
 			// Default template is a link to the title
 			templateTree = [{type: "element", tag: this.parseTreeNode.isBlock ? "div" : "span", children: [{type: "link", attributes: {to: {type: "string", value: title}}, children: [
-					{type: "text", text: title}
+				{type: "text", text: title}
 			]}]}];
 		}
 	}
 	// Return the list item
-	var parseTreeNode = {type: "listitem", itemTitle: title, variableName: this.variableName, children: templateTree};
+	var parseTreeNode = {type: "listitem", itemTitle: title, variableName: this.variableName, children: templateTree, join: join};
+	parseTreeNode.isLast = index === this.list.length - 1;
 	if(this.counterName) {
 		parseTreeNode.counter = (index + 1).toString();
 		parseTreeNode.counterName = this.counterName;
 		parseTreeNode.isFirst = index === 0;
-		parseTreeNode.isLast = index === this.list.length - 1;
 	}
 	return parseTreeNode;
 };
@@ -153,7 +235,7 @@ ListWidget.prototype.refresh = function(changedTiddlers) {
 		this.storyview.refreshStart(changedTiddlers,changedAttributes);
 	}
 	// Completely refresh if any of our attributes have changed
-	if(changedAttributes.filter || changedAttributes.variable || changedAttributes.counter || changedAttributes.template || changedAttributes.editTemplate || changedAttributes.emptyMessage || changedAttributes.storyview || changedAttributes.history) {
+	if(changedAttributes.filter || changedAttributes.variable || changedAttributes.counter || changedAttributes.template || changedAttributes.editTemplate || changedAttributes.join || changedAttributes.emptyMessage || changedAttributes.storyview || changedAttributes.history) {
 		this.refreshSelf();
 		result = true;
 	} else {
@@ -225,6 +307,8 @@ ListWidget.prototype.handleListChanges = function(changedTiddlers) {
 		// If we are providing an counter variable then we must refresh the items, otherwise we can rearrange them
 		var hasRefreshed = false,t;
 		if(this.counterName) {
+			var mustRefreshOldLast = false;
+			var oldLength = this.children.length;
 			// Cycle through the list and remove and re-insert the first item that has changed, and all the remaining items
 			for(t=0; t<this.list.length; t++) {
 				if(hasRefreshed || !this.children[t] || this.children[t].parseTreeNode.itemTitle !== this.list[t]) {
@@ -232,6 +316,9 @@ ListWidget.prototype.handleListChanges = function(changedTiddlers) {
 						this.removeListItem(t);
 					}
 					this.insertListItem(t,this.list[t]);
+					if(!hasRefreshed && t === oldLength) {
+						mustRefreshOldLast = true;
+					}
 					hasRefreshed = true;
 				} else {
 					// Refresh the item we're reusing
@@ -239,6 +326,12 @@ ListWidget.prototype.handleListChanges = function(changedTiddlers) {
 					hasRefreshed = hasRefreshed || refreshed;
 				}
 			}
+			// If items were inserted then we must recreate the item that used to be at the last position as it is no longer last
+			if(mustRefreshOldLast && oldLength > 0) {
+				var oldLastIdx = oldLength-1;
+				this.removeListItem(oldLastIdx);
+				this.insertListItem(oldLastIdx,this.list[oldLastIdx]);
+			}
 			// If there are items to remove and we have not refreshed then recreate the item that will now be at the last position
 			if(!hasRefreshed && this.children.length > this.list.length) {
 				this.removeListItem(this.list.length-1);
@@ -246,10 +339,29 @@ ListWidget.prototype.handleListChanges = function(changedTiddlers) {
 			}
 		} else {
 			// Cycle through the list, inserting and removing list items as needed
+			var mustRecreateLastItem = false;
+			if(this.join && this.join.length) {
+				if(this.children.length !== this.list.length) {
+						mustRecreateLastItem = true;
+				} else if(prevList[prevList.length-1] !== this.list[this.list.length-1]) {
+						mustRecreateLastItem = true;
+				}
+			}
+			var isLast = false, wasLast = false;
 			for(t=0; t<this.list.length; t++) {
+				isLast = t === this.list.length-1;
 				var index = this.findListItem(t,this.list[t]);
+				wasLast = index === this.children.length-1;
+				if(wasLast && (index !== t || this.children.length !== this.list.length)) {
+					mustRecreateLastItem = !!(this.join && this.join.length);
+				}
 				if(index === undefined) {
 					// The list item must be inserted
+					if(isLast && mustRecreateLastItem && t>0) {
+						// First re-create previosly-last item that will no longer be last
+						this.removeListItem(t-1);
+						this.insertListItem(t-1,this.list[t-1]);
+					}
 					this.insertListItem(t,this.list[t]);
 					hasRefreshed = true;
 				} else {
@@ -258,9 +370,15 @@ ListWidget.prototype.handleListChanges = function(changedTiddlers) {
 						this.removeListItem(n);
 						hasRefreshed = true;
 					}
-					// Refresh the item we're reusing
-					var refreshed = this.children[t].refresh(changedTiddlers);
-					hasRefreshed = hasRefreshed || refreshed;
+					// Refresh the item we're reusing, or recreate if necessary
+					if(mustRecreateLastItem && (isLast || wasLast)) {
+						this.removeListItem(t);
+						this.insertListItem(t,this.list[t]);
+						hasRefreshed = true;
+					} else {
+						var refreshed = this.children[t].refresh(changedTiddlers);
+						hasRefreshed = hasRefreshed || refreshed;
+					}
 				}
 			}
 		}
@@ -350,8 +468,17 @@ ListItemWidget.prototype.execute = function() {
 		this.setVariable(this.parseTreeNode.counterName + "-first",this.parseTreeNode.isFirst ? "yes" : "no");
 		this.setVariable(this.parseTreeNode.counterName + "-last",this.parseTreeNode.isLast ? "yes" : "no");
 	}
+	// Add join if needed
+	var children = this.parseTreeNode.children,
+		join = this.parseTreeNode.join;
+	if(join && join.length && !this.parseTreeNode.isLast) {
+		children = children.slice(0);
+		$tw.utils.each(join,function(joinNode) {
+			children.push(joinNode);
+		})
+	}
 	// Construct the child widgets
-	this.makeChildWidgets();
+	this.makeChildWidgets(children);
 };
 
 /*
@@ -363,4 +490,37 @@ ListItemWidget.prototype.refresh = function(changedTiddlers) {
 
 exports.listitem = ListItemWidget;
 
+/*
+Make <$list-template> and <$list-empty> widgets that do nothing
+*/
+var ListTemplateWidget = function(parseTreeNode,options) {
+	// Main initialisation inherited from widget.js
+	this.initialise(parseTreeNode,options);
+};
+ListTemplateWidget.prototype = new Widget();
+ListTemplateWidget.prototype.render = function() {}
+ListTemplateWidget.prototype.refresh = function() { return false; }
+
+exports["list-template"] = ListTemplateWidget;
+
+var ListEmptyWidget = function(parseTreeNode,options) {
+	// Main initialisation inherited from widget.js
+	this.initialise(parseTreeNode,options);
+};
+ListEmptyWidget.prototype = new Widget();
+ListEmptyWidget.prototype.render = function() {}
+ListEmptyWidget.prototype.refresh = function() { return false; }
+
+exports["list-empty"] = ListEmptyWidget;
+
+var ListJoinWidget = function(parseTreeNode,options) {
+	// Main initialisation inherited from widget.js
+	this.initialise(parseTreeNode,options);
+};
+ListJoinWidget.prototype = new Widget();
+ListJoinWidget.prototype.render = function() {}
+ListJoinWidget.prototype.refresh = function() { return false; }
+
+exports["list-join"] = ListJoinWidget;
+
 })();

core/modules/widgets/radio.js

@@ -40,6 +40,10 @@ RadioWidget.prototype.render = function(parent,nextSibling) {
 	);
 	this.inputDomNode = this.document.createElement("input");
 	this.inputDomNode.setAttribute("type","radio");
+	this.assignAttributes(this.inputDomNode,{
+		sourcePrefix: "data-",
+		destPrefix: "data-"
+	});
 	if(isChecked) {
 		this.inputDomNode.checked = true;
 	}

core/modules/widgets/range.js

@@ -50,6 +50,10 @@ RangeWidget.prototype.render = function(parent,nextSibling) {
 		this.inputDomNode.setAttribute("disabled",true);
 	}
 	this.inputDomNode.value = this.getValue();
+	this.assignAttributes(this.inputDomNode,{
+		sourcePrefix: "data-",
+		destPrefix: "data-"
+	});
 	// Add a click event handler
 	$tw.utils.addEventListeners(this.inputDomNode,[
 		{name:"mousedown", handlerObject:this, handlerMethod:"handleMouseDownEvent"},

core/modules/widgets/scrollable.js

@@ -12,6 +12,8 @@ Scrollable widget
 /*global $tw: false */
 "use strict";
 
+var DEBOUNCE_INTERVAL = 100; // Delay after last scroll event before updating the bound tiddler
+
 var Widget = require("$:/core/modules/widgets/widget.js").widget;
 
 var ScrollableWidget = function(parseTreeNode,options) {
@@ -171,6 +173,53 @@ ScrollableWidget.prototype.render = function(parent,nextSibling) {
 	parent.insertBefore(this.outerDomNode,nextSibling);
 	this.renderChildren(this.innerDomNode,null);
 	this.domNodes.push(this.outerDomNode);
+	// If the scroll position is bound to a tiddler
+	if(this.scrollableBind) {
+		// After a delay for rendering, scroll to the bound position
+		this.updateScrollPositionFromBoundTiddler();
+		// Set up event listener
+		this.currentListener = this.listenerFunction.bind(this);
+		this.outerDomNode.addEventListener("scroll", this.currentListener);
+	}
+};
+
+ScrollableWidget.prototype.listenerFunction = function(event) {
+	self = this;
+	clearTimeout(this.timeout);
+	this.timeout = setTimeout(function() {
+		var existingTiddler = self.wiki.getTiddler(self.scrollableBind),
+			newTiddlerFields = {
+				title: self.scrollableBind,
+				"scroll-left": self.outerDomNode.scrollLeft.toString(),
+				"scroll-top": self.outerDomNode.scrollTop.toString()
+			};
+		if(!existingTiddler || (existingTiddler.fields["title"] !== newTiddlerFields["title"]) || (existingTiddler.fields["scroll-left"] !== newTiddlerFields["scroll-left"] || existingTiddler.fields["scroll-top"] !== newTiddlerFields["scroll-top"])) {
+			self.wiki.addTiddler(new $tw.Tiddler(existingTiddler,newTiddlerFields));
+		}
+	}, DEBOUNCE_INTERVAL);
+}
+
+ScrollableWidget.prototype.updateScrollPositionFromBoundTiddler = function() {
+	// Bail if we're running on the fakedom
+	if(!this.outerDomNode.scrollTo) {
+		return;
+	}
+	var tiddler = this.wiki.getTiddler(this.scrollableBind);
+	if(tiddler) {
+		var scrollLeftTo = this.outerDomNode.scrollLeft;
+		if(parseFloat(tiddler.fields["scroll-left"]).toString() === tiddler.fields["scroll-left"]) {
+			scrollLeftTo = parseFloat(tiddler.fields["scroll-left"]);
+		}
+		var scrollTopTo = this.outerDomNode.scrollTop;
+		if(parseFloat(tiddler.fields["scroll-top"]).toString() === tiddler.fields["scroll-top"]) {
+			scrollTopTo = parseFloat(tiddler.fields["scroll-top"]);
+		}
+		this.outerDomNode.scrollTo({
+			top: scrollTopTo,
+			left: scrollLeftTo,
+			behavior: "instant"
+		})
+	}
 };
 
 /*
@@ -178,6 +227,7 @@ Compute the internal state of the widget
 */
 ScrollableWidget.prototype.execute = function() {
 	// Get attributes
+	this.scrollableBind = this.getAttribute("bind");
 	this.fallthrough = this.getAttribute("fallthrough","yes");
 	this["class"] = this.getAttribute("class");
 	// Make child widgets
@@ -193,7 +243,22 @@ ScrollableWidget.prototype.refresh = function(changedTiddlers) {
 		this.refreshSelf();
 		return true;
 	}
-	return this.refreshChildren(changedTiddlers);
+	// If the bound tiddler has changed, update the eventListener and update scroll position
+	if(changedAttributes["bind"]) {
+		if(this.currentListener) {
+			this.outerDomNode.removeEventListener("scroll", this.currentListener, false);
+		}
+		this.scrollableBind = this.getAttribute("bind");
+		this.currentListener = this.listenerFunction.bind(this);
+		this.outerDomNode.addEventListener("scroll", this.currentListener);
+	}
+	// Refresh children
+	var result = this.refreshChildren(changedTiddlers);
+	// If the bound tiddler has changed, update scroll position
+	if(changedAttributes["bind"] || changedTiddlers[this.getAttribute("bind")]) {
+		this.updateScrollPositionFromBoundTiddler();
+	}
+	return result;
 };
 
 exports.scrollable = ScrollableWidget;

core/modules/widgets/select.js

@@ -40,7 +40,31 @@ SelectWidget.prototype.render = function(parent,nextSibling) {
 	this.parentDomNode = parent;
 	this.computeAttributes();
 	this.execute();
-	this.renderChildren(parent,nextSibling);
+	//Create element
+	var domNode = this.document.createElement("select");
+	if(this.selectClass) {
+		domNode.className = this.selectClass;
+	}
+	// Assign data- attributes
+	this.assignAttributes(domNode,{
+		sourcePrefix: "data-",
+		destPrefix: "data-"
+	});
+	if(this.selectMultiple) {
+		domNode.setAttribute("multiple","multiple");
+	}
+	if(this.selectSize) {
+		domNode.setAttribute("size",this.selectSize);
+	}
+	if(this.selectTabindex) {
+		domNode.setAttribute("tabindex",this.selectTabindex);
+	}
+	if(this.selectTooltip) {
+		domNode.setAttribute("title",this.selectTooltip);
+	}
+	this.parentDomNode.insertBefore(domNode,nextSibling);
+	this.renderChildren(domNode,null);
+	this.domNodes.push(domNode);
 	this.setSelectValue();
 	if(this.selectFocus == "yes") {
 		this.getSelectDomNode().focus();
@@ -113,7 +137,7 @@ SelectWidget.prototype.setSelectValue = function() {
 Get the DOM node of the select element
 */
 SelectWidget.prototype.getSelectDomNode = function() {
-	return this.children[0].domNodes[0];
+	return this.domNodes[0];
 };
 
 // Return an array of the selected opion values
@@ -149,27 +173,7 @@ SelectWidget.prototype.execute = function() {
 	this.selectTooltip = this.getAttribute("tooltip");
 	this.selectFocus = this.getAttribute("focus");
 	// Make the child widgets
-	var selectNode = {
-		type: "element",
-		tag: "select",
-		children: this.parseTreeNode.children
-	};
-	if(this.selectClass) {
-		$tw.utils.addAttributeToParseTreeNode(selectNode,"class",this.selectClass);
-	}
-	if(this.selectMultiple) {
-		$tw.utils.addAttributeToParseTreeNode(selectNode,"multiple","multiple");
-	}
-	if(this.selectSize) {
-		$tw.utils.addAttributeToParseTreeNode(selectNode,"size",this.selectSize);
-	}
-	if(this.selectTabindex) {
-		$tw.utils.addAttributeToParseTreeNode(selectNode,"tabindex",this.selectTabindex);
-	}
-	if(this.selectTooltip) {
-		$tw.utils.addAttributeToParseTreeNode(selectNode,"title",this.selectTooltip);
-	}
-	this.makeChildWidgets([selectNode]);
+	this.makeChildWidgets();
 };
 
 /*
@@ -178,17 +182,21 @@ Selectively refreshes the widget if needed. Returns true if the widget or any of
 SelectWidget.prototype.refresh = function(changedTiddlers) {
 	var changedAttributes = this.computeAttributes();
 	// If we're using a different tiddler/field/index then completely refresh ourselves
-	if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.index || changedAttributes.tooltip) {
+	if(changedAttributes.tiddler || changedAttributes.field || changedAttributes.index || changedAttributes.tooltip || changedAttributes.tabindex) {
 		this.refreshSelf();
 		return true;
-	// If the target tiddler value has changed, just update setting and refresh the children
 	} else {
 		if(changedAttributes.class) {
 			this.selectClass = this.getAttribute("class");
 			this.getSelectDomNode().setAttribute("class",this.selectClass); 
 		}
-		
+		this.assignAttributes(this.getSelectDomNode(),{
+			changedAttributes: changedAttributes,
+			sourcePrefix: "data-",
+			destPrefix: "data-"
+		});
 		var childrenRefreshed = this.refreshChildren(changedTiddlers);
+		// If the target tiddler value has changed, just update setting and refresh the children
 		if(changedTiddlers[this.selectTitle] || childrenRefreshed) {
 			this.setSelectValue();
 		} 

core/modules/widgets/transclude.js

@@ -109,6 +109,7 @@ TranscludeWidget.prototype.collectAttributes = function() {
 		this.recursionMarker = this.getAttribute("recursionMarker","yes");
 	} else {
 		this.transcludeVariable = this.getAttribute("$variable");
+		this.transcludeVariableIsFunction = false;
 		this.transcludeType = this.getAttribute("$type");
 		this.transcludeOutput = this.getAttribute("$output","text/html");
 		this.transcludeTitle = this.getAttribute("$tiddler",this.getVariable("currentTiddler"));
@@ -184,7 +185,9 @@ TranscludeWidget.prototype.getTransclusionTarget = function() {
 		if(this.transcludeVariable) {
 			// Transcluding a variable
 			var variableInfo = this.getVariableInfo(this.transcludeVariable,{params: this.getOrderedTransclusionParameters()});
+			this.transcludeVariableIsFunction = variableInfo.srcVariable && variableInfo.srcVariable.isFunctionDefinition;
 			text = variableInfo.text;
+			this.transcludeFunctionResult = text;
 			return {
 				text: variableInfo.text,
 				type: this.transcludeType
@@ -219,21 +222,24 @@ TranscludeWidget.prototype.parseTransclusionTarget = function(parseAsInline) {
 			// Transcluding a variable
 			var variableInfo = this.getVariableInfo(this.transcludeVariable,{params: this.getOrderedTransclusionParameters()}),
 				srcVariable = variableInfo && variableInfo.srcVariable;
+			if(srcVariable && srcVariable.isFunctionDefinition) {
+				this.transcludeVariableIsFunction = true;
+				this.transcludeFunctionResult = (variableInfo.resultList ? variableInfo.resultList[0] : variableInfo.text) || "";
+			}
 			if(variableInfo.text) {
 				if(srcVariable && srcVariable.isFunctionDefinition) {
-					var result = (variableInfo.resultList ? variableInfo.resultList[0] : variableInfo.text) || "";
 					parser = {
 						tree: [{
 							type: "text",
-							text: result
+							text: this.transcludeFunctionResult
 						}],
-						source: result,
+						source: this.transcludeFunctionResult,
 						type: "text/vnd.tiddlywiki"
 					};
 					if(parseAsInline) {
 						parser.tree[0] = {
 							type: "text",
-							text: result
+							text: this.transcludeFunctionResult
 						};
 					} else {
 						parser.tree[0] = {
@@ -241,7 +247,7 @@ TranscludeWidget.prototype.parseTransclusionTarget = function(parseAsInline) {
 							tag: "p",
 							children: [{
 								type: "text",
-								text: result
+								text: this.transcludeFunctionResult
 							}]
 						}
 					}
@@ -430,12 +436,19 @@ TranscludeWidget.prototype.parserNeedsRefresh = function() {
 	return (this.sourceText === undefined || parserInfo.sourceText !== this.sourceText || parserInfo.parserType !== this.parserType)
 };
 
+TranscludeWidget.prototype.functionNeedsRefresh = function() {
+	var oldResult = this.transcludeFunctionResult;
+	var variableInfo = this.getVariableInfo(this.transcludeVariable,{params: this.getOrderedTransclusionParameters()});
+	var newResult = (variableInfo.resultList ? variableInfo.resultList[0] : variableInfo.text) || "";
+	return oldResult !== newResult;
+}
+
 /*
 Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
 */
 TranscludeWidget.prototype.refresh = function(changedTiddlers) {
 	var changedAttributes = this.computeAttributes();
-	if(($tw.utils.count(changedAttributes) > 0) || (!this.transcludeVariable && changedTiddlers[this.transcludeTitle] && this.parserNeedsRefresh())) {
+	if(($tw.utils.count(changedAttributes) > 0) || (this.transcludeVariableIsFunction && this.functionNeedsRefresh()) || (!this.transcludeVariable && changedTiddlers[this.transcludeTitle] && this.parserNeedsRefresh())) {
 		this.refreshSelf();
 		return true;
 	} else {

core/modules/widgets/widget.js

@@ -153,7 +153,7 @@ Widget.prototype.getVariableInfo = function(name,options) {
 		} else if(variable.isFunctionDefinition) {
 			// Function evaluations
 			params = self.resolveVariableParameters(variable.params,actualParams);
-			var variables = Object.create(null);
+			var variables = options.variables || Object.create(null);
 			// Apply default parameter values
 			$tw.utils.each(variable.params,function(param,index) {
 				if(param["default"]) {
@@ -413,16 +413,34 @@ Widget.prototype.getAttribute = function(name,defaultText) {
 };
 
 /*
-Assign the computed attributes of the widget to a domNode
+Assign the common attributes of the widget to a domNode
 options include:
-excludeEventAttributes: ignores attributes whose name begins with "on"
+sourcePrefix: prefix of attributes that are to be directly assigned (defaults to the empty string meaning all attributes)
+destPrefix: prefix to be applied to attribute names that are to be directly assigned (defaults to the emtpy string which means no prefix is added)
+changedAttributes: hashmap by attribute name of attributes to process (if missing, process all attributes)
+excludeEventAttributes: ignores attributes whose name would begin with "on"
 */
 Widget.prototype.assignAttributes = function(domNode,options) {
 	options = options || {};
-	var self = this;
+	var self = this,
+		changedAttributes = options.changedAttributes || this.attributes,
+		sourcePrefix = options.sourcePrefix || "",
+		destPrefix = options.destPrefix || "",
+		EVENT_ATTRIBUTE_PREFIX = "on";
 	var assignAttribute = function(name,value) {
+		// Process any style attributes before considering sourcePrefix and destPrefix
+		if(name.substr(0,6) === "style." && name.length > 6) {
+			domNode.style[$tw.utils.unHyphenateCss(name.substr(6))] = value;
+			return;
+		}
+		// Check if the sourcePrefix is a match
+		if(name.substr(0,sourcePrefix.length) === sourcePrefix) {
+			name = destPrefix + name.substr(sourcePrefix.length);
+		} else {
+			value = undefined;
+		}
 		// Check for excluded attribute names
-		if(options.excludeEventAttributes && name.substr(0,2) === "on") {
+		if(options.excludeEventAttributes && name.substr(0,2).toLowerCase() === EVENT_ATTRIBUTE_PREFIX) {
 			value = undefined;
 		}
 		if(value !== undefined) {
@@ -432,26 +450,24 @@ Widget.prototype.assignAttributes = function(domNode,options) {
 				namespace = "http://www.w3.org/1999/xlink";
 				name = name.substr(6);
 			}
-			// Handle styles
-			if(name.substr(0,6) === "style." && name.length > 6) {
-				domNode.style[$tw.utils.unHyphenateCss(name.substr(6))] = value;
-			} else {
-				// Setting certain attributes can cause a DOM error (eg xmlns on the svg element)
-				try {
-					domNode.setAttributeNS(namespace,name,value);
-				} catch(e) {
-				}
+			// Setting certain attributes can cause a DOM error (eg xmlns on the svg element)
+			try {
+				domNode.setAttributeNS(namespace,name,value);
+			} catch(e) {
 			}
 		}
-	}
-	// Not all parse tree nodes have the orderedAttributes property
+	};
+	// If the parse tree node has the orderedAttributes property then use that order
 	if(this.parseTreeNode.orderedAttributes) {
 		$tw.utils.each(this.parseTreeNode.orderedAttributes,function(attribute,index) {
-			assignAttribute(attribute.name,self.attributes[attribute.name]);
-		});	
+			if(attribute.name in changedAttributes) {
+				assignAttribute(attribute.name,self.getAttribute(attribute.name));
+			}
+		});
+	// Otherwise update each changed attribute irrespective of order
 	} else {
-		$tw.utils.each(Object.keys(self.attributes).sort(),function(name) {
-			assignAttribute(name,self.attributes[name]);
+		$tw.utils.each(changedAttributes,function(value,name) {
+			assignAttribute(name,self.getAttribute(name));
 		});	
 	}
 };

core/modules/wiki.js

@@ -534,8 +534,8 @@ Return an array of tiddler titles that link to the specified tiddler
 */
 exports.getTiddlerBacklinks = function(targetTitle) {
 	var self = this,
-		backlinksIndexer = this.getIndexer("BacklinksIndexer"),
-		backlinks = backlinksIndexer && backlinksIndexer.lookup(targetTitle);
+		backIndexer = this.getIndexer("BackIndexer"),
+		backlinks = backIndexer && backIndexer.subIndexers.link.lookup(targetTitle);
 
 	if(!backlinks) {
 		backlinks = [];
@@ -549,6 +549,68 @@ exports.getTiddlerBacklinks = function(targetTitle) {
 	return backlinks;
 };
 
+
+/*
+Return an array of tiddler titles that are directly transcluded within the given parse tree
+ */
+exports.extractTranscludes = function(parseTreeRoot) {
+	// Count up the transcludes
+	var transcludes = [],
+		checkParseTree = function(parseTree, parentNode) {
+			for(var t=0; t<parseTree.length; t++) {
+				var parseTreeNode = parseTree[t];
+				if(parseTreeNode.type === "transclude" && parseTreeNode.attributes.$tiddler && parseTreeNode.attributes.$tiddler.type === "string") {
+					var value;
+					// if it is Transclusion with Templates like `{{Index||$:/core/ui/TagTemplate}}`, the `$tiddler` will point to the template. We need to find the actual target tiddler from parent node
+					if(parentNode && parentNode.type === "tiddler" && parentNode.attributes.tiddler && parentNode.attributes.tiddler.type === "string") {
+						value = parentNode.attributes.tiddler.value;
+					} else {
+						value = parseTreeNode.attributes.$tiddler.value;
+					}
+					if(transcludes.indexOf(value) === -1) {
+						transcludes.push(value);
+					}
+				}
+				if(parseTreeNode.children) {
+					checkParseTree(parseTreeNode.children, parseTreeNode);
+				}
+			}
+		};
+	checkParseTree(parseTreeRoot);
+	return transcludes;
+};
+
+
+/*
+Return an array of tiddler titles that are transcluded from the specified tiddler
+*/
+exports.getTiddlerTranscludes = function(title) {
+	var self = this;
+	// We'll cache the transcludes so they only get computed if the tiddler changes
+	return this.getCacheForTiddler(title,"transcludes",function() {
+		// Parse the tiddler
+		var parser = self.parseTiddler(title);
+		if(parser) {
+			return self.extractTranscludes(parser.tree);
+		}
+		return [];
+	});
+};
+
+/*
+Return an array of tiddler titles that transclude to the specified tiddler
+*/
+exports.getTiddlerBacktranscludes = function(targetTitle) {
+	var self = this,
+		backIndexer = this.getIndexer("BackIndexer"),
+		backtranscludes = backIndexer && backIndexer.subIndexers.transclude.lookup(targetTitle);
+
+	if(!backtranscludes) {
+		backtranscludes = [];
+	}
+	return backtranscludes;
+};
+
 /*
 Return a hashmap of tiddler titles that are referenced but not defined. Each value is the number of times the missing tiddler is referenced
 */
@@ -1287,7 +1349,7 @@ exports.search = function(text,options) {
 			console.log("Regexp error parsing /(" + text + ")/" + flags + ": ",e);
 		}
 	} else if(options.some) {
-		terms = text.trim().split(/ +/);
+		terms = text.trim().split(/[^\S\xA0]+/);
 		if(terms.length === 1 && terms[0] === "") {
 			searchTermsRegExps = null;
 		} else {
@@ -1298,7 +1360,7 @@ exports.search = function(text,options) {
 			searchTermsRegExps.push(new RegExp("(" + regExpStr + ")",flags));
 		}
 	} else { // default: words
-		terms = text.split(/ +/);
+		terms = text.split(/[^\S\xA0]+/);
 		if(terms.length === 1 && terms[0] === "") {
 			searchTermsRegExps = null;
 		} else {

core/templates/external-js/save-all-external-js.tid

@@ -3,7 +3,7 @@ title: $:/core/save/all-external-js
 \whitespace trim
 \import [subfilter{$:/core/config/GlobalImportFilter}]
 \define saveTiddlerFilter()
-[is[tiddler]] -[prefix[$:/state/popup/]] -[prefix[$:/temp/]] -[prefix[$:/HistoryList]] -[status[pending]plugin-type[import]] -[[$:/core]] -[[$:/boot/boot.css]] -[type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] +[sort[title]] $(publishFilter)$
+[is[tiddler]] -[prefix[$:/state/popup/]] -[prefix[$:/temp/]] -[prefix[$:/HistoryList]] -[status[pending]plugin-type[import]] -[[$:/core]] -[[$:/boot/boot.css]] -[is[system]type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] +[sort[title]] $(publishFilter)$
 \end
 
 <!-- Important: core library is provided by serving URI encoded $:/core/templates/tiddlywiki5.js -->

core/templates/external-js/save-offline-external-js.tid

@@ -3,7 +3,7 @@ title: $:/core/save/offline-external-js
 \whitespace trim
 \import [subfilter{$:/core/config/GlobalImportFilter}]
 \define saveTiddlerFilter()
-[is[tiddler]] -[prefix[$:/state/popup/]] -[prefix[$:/temp/]] -[prefix[$:/HistoryList]] -[status[pending]plugin-type[import]] -[[$:/core]] -[[$:/plugins/tiddlywiki/filesystem]] -[[$:/plugins/tiddlywiki/tiddlyweb]] -[[$:/boot/boot.css]] -[type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] +[sort[title]] $(publishFilter)$
+[is[tiddler]] -[prefix[$:/state/popup/]] -[prefix[$:/temp/]] -[prefix[$:/HistoryList]] -[status[pending]plugin-type[import]] -[[$:/core]] -[[$:/plugins/tiddlywiki/filesystem]] -[[$:/plugins/tiddlywiki/tiddlyweb]] -[[$:/boot/boot.css]] -[is[system]type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] +[sort[title]] $(publishFilter)$
 \end
 \define defaultCoreURL() tiddlywikicore-$(version)$.js
 <$let coreURL={{{ [[coreURL]is[variable]then<coreURL>else<defaultCoreURL>] }}}>

core/templates/html-json-skinny-tiddler.tid

@@ -1,4 +1,3 @@
 title: $:/core/templates/html-json-skinny-tiddler
 
-<$list filter="[<numTiddlers>compare:number:gteq[1]] ~[<counter>!match[1]]">`,`<$text text=<<newline>>/></$list>
-<$jsontiddler tiddler=<<currentTiddler>> exclude="text" escapeUnsafeScriptChars="yes"/>
+<$text text=<<join>>/><$jsontiddler tiddler=<<currentTiddler>> exclude="text" escapeUnsafeScriptChars="yes"/>

core/templates/html-json-tiddler.tid

@@ -1,3 +1,3 @@
 title: $:/core/templates/html-json-tiddler
 
-<$list filter="[<counter>!match[1]]">`,`<$text text=<<newline>>/></$list><$jsontiddler tiddler=<<currentTiddler>> escapeUnsafeScriptChars="yes"/>
+<$jsontiddler tiddler=<<currentTiddler>> escapeUnsafeScriptChars="yes"/>

core/templates/save-all.tid

@@ -2,6 +2,6 @@ title: $:/core/save/all
 
 \import [subfilter{$:/core/config/GlobalImportFilter}]
 \define saveTiddlerFilter()
-[is[tiddler]] -[prefix[$:/state/popup/]] -[prefix[$:/temp/]] -[prefix[$:/HistoryList]] -[status[pending]plugin-type[import]] -[[$:/boot/boot.css]] -[type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] +[sort[title]] $(publishFilter)$
+[is[tiddler]] -[prefix[$:/state/popup/]] -[prefix[$:/temp/]] -[prefix[$:/HistoryList]] -[status[pending]plugin-type[import]] -[[$:/boot/boot.css]] -[is[system]type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] +[sort[title]] $(publishFilter)$
 \end
 {{$:/core/templates/tiddlywiki5.html}}

core/templates/save-empty.tid

@@ -1,6 +1,6 @@
 title: $:/core/save/empty
 
 \define saveTiddlerFilter()
-[is[system]] -[prefix[$:/state/popup/]] -[[$:/boot/boot.css]] -[type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] +[sort[title]]
+[is[system]] -[prefix[$:/state/popup/]] -[[$:/boot/boot.css]] -[is[system]type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] +[sort[title]]
 \end
 {{$:/core/templates/tiddlywiki5.html}}

core/templates/save-lazy-all.tid

@@ -1,7 +1,7 @@
 title: $:/core/save/lazy-all
 
 \define saveTiddlerFilter()
-[is[system]] -[prefix[$:/state/popup/]] -[[$:/HistoryList]] -[[$:/boot/boot.css]] -[type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] [is[tiddler]type[application/javascript]] +[sort[title]]
+[is[system]] -[prefix[$:/state/popup/]] -[[$:/HistoryList]] -[[$:/boot/boot.css]] -[is[system]type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] [is[tiddler]type[application/javascript]] +[sort[title]]
 \end
 \define skinnySaveTiddlerFilter()
 [!is[system]] -[type[application/javascript]]

core/templates/save-lazy-images.tid

@@ -1,7 +1,7 @@
 title: $:/core/save/lazy-images
 
 \define saveTiddlerFilter()
-[is[tiddler]] -[prefix[$:/state/popup/]] -[[$:/HistoryList]] -[[$:/boot/boot.css]] -[type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] -[!is[system]is[image]] +[sort[title]] 
+[is[tiddler]] -[prefix[$:/state/popup/]] -[[$:/HistoryList]] -[[$:/boot/boot.css]] -[is[system]type[application/javascript]library[yes]] -[[$:/boot/boot.js]] -[[$:/boot/bootprefix.js]] -[!is[system]is[image]] +[sort[title]] 
 \end
 \define skinnySaveTiddlerFilter()
 [!is[system]is[image]]

core/templates/store.area.template.html.tid

@@ -6,14 +6,12 @@ title: $:/core/templates/store.area.template.html
     <$list filter="[[storeAreaFormat]is[variable]getvariable[]else[json]match[json]]">
         <!-- New-style JSON store area, with an old-style store area for compatibility with v5.1.x tooling -->
         `<script class="tiddlywiki-tiddler-store" type="application/json">[`
-            <$vars newline={{{ [charcode[10]] }}}>
+            <$let newline={{{ [charcode[10]] }}} join=`,$(newline)$`>
                 <$text text=<<newline>>/>
-                <$list filter=<<saveTiddlerFilter>> counter="counter" template="$:/core/templates/html-json-tiddler"/>
-                <$vars numTiddlers={{{ [subfilter<saveTiddlerFilter>count[]] }}}>
-                    <$list filter={{{ [<skinnySaveTiddlerFilter>] }}} counter="counter" template="$:/core/templates/html-json-skinny-tiddler"/>
-                </$vars>
+                <$list filter=<<saveTiddlerFilter>> join=<<join>> template="$:/core/templates/html-json-tiddler"/>
+                <$list filter="[subfilter<skinnySaveTiddlerFilter>]"  template="$:/core/templates/html-json-skinny-tiddler"/>
                 <$text text=<<newline>>/>
-            </$vars>
+            </$let>
         `]</script>`
         `<div id="storeArea" style="display:none;">`
         `</div>`
@@ -22,8 +20,8 @@ title: $:/core/templates/store.area.template.html
         <!-- Old-style DIV/PRE-based store area -->
         <$reveal type="nomatch" state="$:/isEncrypted" text="yes">
             `<div id="storeArea" style="display:none;">`
-                <$list filter=<<saveTiddlerFilter>> template="$:/core/templates/html-div-tiddler"/>
-                <$list filter={{{ [<skinnySaveTiddlerFilter>] }}} template="$:/core/templates/html-div-skinny-tiddler"/>
+                <$list filter={{{ [<saveTiddlerFilter>] }}} template="$:/core/templates/html-div-tiddler"/>
+                <$list filter="[subfilter<skinnySaveTiddlerFilter>]" template="$:/core/templates/html-div-skinny-tiddler"/>
             `</div>`
         </$reveal>
     </$list>

core/ui/AdvancedSearch/Filter.tid

@@ -40,10 +40,8 @@ caption: {{$:/language/Search/Filter/Caption}}
 		<$action-sendmessage $message="tm-edit-tiddler" $param={{{  [<__tiddler__>get[text]] }}}/>
 </$list></$list>
 \end
-
 \whitespace trim
 <<lingo Filter/Hint>>
-
 <div class="tc-search tc-advanced-search">
 <$keyboard key="((input-tab-right))" actions=<<set-next-input-tab>>>
 <$keyboard key="((input-tab-left))" actions=<<set-next-input-tab "before">>>
@@ -65,11 +63,10 @@ caption: {{$:/language/Search/Filter/Caption}}
 &#32;
 <$list filter="[all[shadows+tiddlers]tag[$:/tags/AdvancedSearch/FilterButton]!has[draft.of]]"><$transclude/></$list>
 </div>
-
 <$reveal state="$:/temp/advancedsearch" type="nomatch" text="">
 <$set name="resultCount" value="<$count filter={{$:/temp/advancedsearch}}/>">
 <div class="tc-search-results">
-<<lingo Filter/Matches>>
+<p><<lingo Filter/Matches>></p>
 <$list filter={{$:/temp/advancedsearch}}>
 <span class={{{[<currentTiddler>addsuffix[-primaryList]] -[[$:/temp/advancedsearch/selected-item]get[text]] +[then[]else[tc-list-item-selected]] }}}>
 <$transclude tiddler="$:/core/ui/ListItemTemplate"/>

core/ui/AdvancedSearch/Standard.tid

@@ -54,17 +54,18 @@ caption: {{$:/language/Search/Standard/Caption}}
 	variable="listItem">
 <$vars
 	userInput={{{ [[$:/temp/advancedsearch]get[text]] }}}
-	configTiddler={{{ [[$:/state/search/currentTab]!is[missing]get[text]] ~[{$:/config/SearchResults/Default}] }}}
+	configTiddler={{{ [[$:/state/advancedsearch/standard/currentTab]!is[missing]get[text]] ~[{$:/config/SearchResults/Default}] }}}
 	searchListState="$:/temp/advancedsearch/selected-item">
-<$list
-	filter="[all[shadows+tiddlers]tag[$:/tags/SearchResults]!has[draft.of]butfirst[]limit[1]]"
-	emptyMessage="<$list filter='[all[shadows+tiddlers]tag[$:/tags/SearchResults]!has[draft.of]]'><$transclude/></$list>">
+<$list filter="[all[shadows+tiddlers]tag[$:/tags/SearchResults]!has[draft.of]butfirst[]limit[1]]">
 <$macrocall $name="tabs"
 	tabsList="[all[shadows+tiddlers]tag[$:/tags/SearchResults]!has[draft.of]]"
 	default={{$:/config/SearchResults/Default}}
 	actions="<$action-setfield $tiddler='$:/state/advancedsearch/standard/currentTab' text=<<currentTab>>/>"
 	explicitState="$:/state/tab/search-results/advancedsearch" />
 </$list>
+<$list filter="[all[shadows+tiddlers]tag[$:/tags/SearchResults]!has[draft.of]butfirst[]limit[1]]  :else[[]]">
+<$list filter="[all[shadows+tiddlers]tag[$:/tags/SearchResults]!has[draft.of]]"><$transclude mode="block"/></$list>
+</$list>
 </$vars>
 </$list>
 </$reveal>

core/ui/ControlPanel/Basics.tid

@@ -26,10 +26,10 @@ caption: {{$:/language/ControlPanel/Basics/Caption}}
 |<$link to="$:/SiteSubtitle"><<lingo Subtitle/Prompt>></$link> |<$edit-text tiddler="$:/SiteSubtitle" default="" tag="input"/> |
 |<$link to="$:/status/UserName"><<lingo Username/Prompt>></$link> |<$edit-text tiddler="$:/status/UserName" default="" tag="input"/> |
 |<$link to="$:/config/AnimationDuration"><<lingo AnimDuration/Prompt>></$link> |<$edit-text tiddler="$:/config/AnimationDuration" default="" tag="input"/> |
-|<$link to="$:/DefaultTiddlers"><<lingo DefaultTiddlers/Prompt>></$link> |<<lingo DefaultTiddlers/TopHint>><br> <$edit class="tc-edit-texteditor" tiddler="$:/DefaultTiddlers"/><br>//<<lingo DefaultTiddlers/BottomHint>>// |
+|<$link to="$:/DefaultTiddlers"><<lingo DefaultTiddlers/Prompt>></$link> |<<lingo DefaultTiddlers/TopHint>><br> <$edit class="tc-edit-texteditor" tiddler="$:/DefaultTiddlers" autoHeight="yes"/><br>//<<lingo DefaultTiddlers/BottomHint>>// |
 |<$link to="$:/language/DefaultNewTiddlerTitle"><<lingo NewTiddler/Title/Prompt>></$link> |<$edit-text tiddler="$:/language/DefaultNewTiddlerTitle" default="" tag="input"/> |
 |<$link to="$:/config/NewJournal/Title"><<lingo NewJournal/Title/Prompt>></$link> |<$edit-text tiddler="$:/config/NewJournal/Title" default="" tag="input"/> |
-|<$link to="$:/config/NewJournal/Text"><<lingo NewJournal/Text/Prompt>></$link> |<$edit tiddler="$:/config/NewJournal/Text" class="tc-edit-texteditor" default=""/> |
+|<$link to="$:/config/NewJournal/Text"><<lingo NewJournal/Text/Prompt>></$link> |<$edit tiddler="$:/config/NewJournal/Text" class="tc-edit-texteditor" default="" autoHeight="yes"/> |
 |<$link to="$:/config/NewTiddler/Tags"><<lingo NewTiddler/Tags/Prompt>></$link> |<$vars currentTiddler="$:/config/NewTiddler/Tags" tagField="text">{{||$:/core/ui/EditTemplate/tags}}<$list filter="[<currentTiddler>tags[]] +[limit[1]]" variable="ignore"><$button tooltip={{$:/language/ControlPanel/Basics/RemoveTags/Hint}}><<lingo RemoveTags>><$action-listops $tiddler=<<currentTiddler>> $field="text" $subfilter={{{ [<currentTiddler>get[tags]] }}}/><$action-setfield $tiddler=<<currentTiddler>> tags=""/></$button></$list></$vars> |
 |<$link to="$:/config/NewJournal/Tags"><<lingo NewJournal/Tags/Prompt>></$link> |<$vars currentTiddler="$:/config/NewJournal/Tags" tagField="text">{{||$:/core/ui/EditTemplate/tags}}<$list filter="[<currentTiddler>tags[]] +[limit[1]]" variable="ignore"><$button tooltip={{$:/language/ControlPanel/Basics/RemoveTags/Hint}}><<lingo RemoveTags>><$action-listops $tiddler=<<currentTiddler>> $field="text" $subfilter={{{ [<currentTiddler>get[tags]] }}}/><$action-setfield $tiddler=<<currentTiddler>> tags=""/></$button></$list></$vars> |
 |<$link to="$:/config/AutoFocus"><<lingo AutoFocus/Prompt>></$link> |{{$:/snippets/minifocusswitcher}} |

core/ui/ControlPanel/Saving/DownloadSaver.tid

@@ -2,10 +2,19 @@ title: $:/core/ui/ControlPanel/Saving/DownloadSaver
 tags: $:/tags/ControlPanel/Saving
 caption: {{$:/language/ControlPanel/Saving/DownloadSaver/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Saving/DownloadSaver/
 
+<div class="tc-control-panel-saving" data-setting-title=<<currentTab>>>
+
 <<lingo Hint>>
 
-!! <$link to="$:/config/DownloadSaver/AutoSave"><<lingo AutoSave/Hint>></$link>
+!!.tc-control-panel-accent <$link to="$:/config/DownloadSaver/AutoSave"><<lingo AutoSave/Hint>></$link>
 
-<$checkbox tiddler="$:/config/DownloadSaver/AutoSave" field="text" checked="yes" unchecked="no" default="no"> <<lingo AutoSave/Description>> </$checkbox>
+<$checkbox tiddler="$:/config/DownloadSaver/AutoSave"
+	field="text" checked="yes" unchecked="no" default="no"
+	class="tc-control-panel-item"
+>
+	<span class="tc-tiny-gap-left"><<lingo AutoSave/Description>></span>
+</$checkbox>
+</div>

core/ui/ControlPanel/Saving/General.tid

@@ -3,14 +3,22 @@ tags: $:/tags/ControlPanel/Saving
 caption: {{$:/language/ControlPanel/Saving/General/Caption}}
 list-before:
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/
 
+<div class="tc-control-panel-saving" data-setting-title=<<currentTab>>>
+
 {{$:/language/ControlPanel/Saving/General/Hint}}
 
-!! <$link to="$:/config/AutoSave"><<lingo AutoSave/Caption>></$link>
+!!.tc-control-panel-accent <$link to="$:/config/AutoSave"><<lingo AutoSave/Caption>></$link>
 
 <<lingo AutoSave/Hint>>
 
-<$radio tiddler="$:/config/AutoSave" value="yes"> <<lingo AutoSave/Enabled/Description>> </$radio>
+<$radio tiddler="$:/config/AutoSave" value="yes">
+	<span class="tc-tiny-gap-left"><<lingo AutoSave/Enabled/Description>></span>
+</$radio>
 
-<$radio tiddler="$:/config/AutoSave" value="no"> <<lingo AutoSave/Disabled/Description>> </$radio>
+<$radio tiddler="$:/config/AutoSave" value="no">
+	<span class="tc-tiny-gap-left"><<lingo AutoSave/Disabled/Description>></span>
+</$radio>
+</div>

core/ui/ControlPanel/Settings/CamelCase.tid

@@ -2,7 +2,16 @@ title: $:/core/ui/ControlPanel/Settings/CamelCase
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/CamelCase/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/CamelCase/
+
 <<lingo Hint>>
 
-<$checkbox tiddler="$:/config/WikiParserRules/Inline/wikilink" field="text" checked="enable" unchecked="disable" default="enable"> <$link to="$:/config/WikiParserRules/Inline/wikilink"><<lingo Description>></$link> </$checkbox>
+<$checkbox tiddler="$:/config/WikiParserRules/Inline/wikilink"
+	field="text" checked="enable" unchecked="disable" default="enable"
+	class="tc-control-panel-item"
+>
+	<$link to="$:/config/WikiParserRules/Inline/wikilink" class="tc-tiny-gap-left">
+		<<lingo Description>>
+	</$link>
+</$checkbox>

core/ui/ControlPanel/Settings/DefaultMoreSidebarTab.tid

@@ -2,13 +2,18 @@ caption: {{$:/language/ControlPanel/Settings/DefaultMoreSidebarTab/Caption}}
 tags: $:/tags/ControlPanel/Settings
 title: $:/core/ui/ControlPanel/Settings/DefaultMoreSidebarTab
 
-\define lingo-base() $:/language/ControlPanel/Settings/DefaultMoreSidebarTab/
 \whitespace trim
+\define lingo-base() $:/language/ControlPanel/Settings/DefaultMoreSidebarTab/
 
-<$link to="$:/config/DefaultMoreSidebarTab"><<lingo Hint>></$link>
+<$link to="$:/config/DefaultMoreSidebarTab" class="tc-control-panel-item">
+	<<lingo Hint>>
+</$link>
 
-<$select tiddler="$:/config/DefaultMoreSidebarTab">
-<$list filter="[all[shadows+tiddlers]tag[$:/tags/MoreSideBar]!has[draft.of]]">
-<option value=<<currentTiddler>>><$transclude field="caption"><$text text=<<currentTiddler>>/></$transclude></option>
-</$list>
+<$select tiddler="$:/config/DefaultMoreSidebarTab" class="tc-select">
+	<$list filter="[all[shadows+tiddlers]tag[$:/tags/MoreSideBar]!has[draft.of]]">
+		<option value=<<currentTiddler>>><$transclude field="caption">
+			<$text text=<<currentTiddler>>/>
+			</$transclude>
+		</option>
+	</$list>
 </$select>

core/ui/ControlPanel/Settings/DefaultSidebarTab.tid

@@ -5,10 +5,16 @@ title: $:/core/ui/ControlPanel/Settings/DefaultSidebarTab
 \define lingo-base() $:/language/ControlPanel/Settings/DefaultSidebarTab/
 \whitespace trim
 
-<$link to="$:/config/DefaultSidebarTab"><<lingo Hint>></$link>
+<$link to="$:/config/DefaultSidebarTab" class="tc-control-panel-item">
+	<<lingo Hint>>
+</$link>
 
-<$select tiddler="$:/config/DefaultSidebarTab">
-<$list filter="[all[shadows+tiddlers]tag[$:/tags/SideBar]!has[draft.of]]">
-<option value=<<currentTiddler>>><$transclude field="caption"><$text text=<<currentTiddler>>/></$transclude></option>
-</$list>
+<$select tiddler="$:/config/DefaultSidebarTab" class="tc-select">
+	<$list filter="[all[shadows+tiddlers]tag[$:/tags/SideBar]!has[draft.of]]">
+		<option value=<<currentTiddler>>>
+			<$transclude field="caption">
+				<$text text=<<currentTiddler>>/>
+			</$transclude>
+		</option>
+	</$list>
 </$select>

core/ui/ControlPanel/Settings/EditorToolbar.tid

@@ -2,8 +2,15 @@ title: $:/core/ui/ControlPanel/Settings/EditorToolbar
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/EditorToolbar/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/EditorToolbar/
 <<lingo Hint>>
 
-<$checkbox tiddler="$:/config/TextEditor/EnableToolbar" field="text" checked="yes" unchecked="no" default="yes"> <$link to="$:/config/TextEditor/EnableToolbar"><<lingo Description>></$link> </$checkbox>
-
+<$checkbox tiddler="$:/config/TextEditor/EnableToolbar"
+	field="text" checked="yes" unchecked="no" default="yes"
+	class="tc-control-panel-item"
+>
+	<$link to="$:/config/TextEditor/EnableToolbar" class="tc-tiny-gap-left">
+		<<lingo Description>>
+	</$link>
+</$checkbox>

core/ui/ControlPanel/Settings/InfoPanelMode.tid

@@ -2,9 +2,17 @@ title: $:/core/ui/ControlPanel/Settings/InfoPanelMode
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/InfoPanelMode/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/InfoPanelMode/
-<$link to="$:/config/TiddlerInfo/Mode"><<lingo Hint>></$link>
 
-<$radio tiddler="$:/config/TiddlerInfo/Mode" value="popup"> <<lingo Popup/Description>> </$radio>
+<$link to="$:/config/TiddlerInfo/Mode" class="tc-control-panel-item">
+	<<lingo Hint>>
+</$link>
 
-<$radio tiddler="$:/config/TiddlerInfo/Mode" value="sticky"> <<lingo Sticky/Description>> </$radio>
+<$radio tiddler="$:/config/TiddlerInfo/Mode" value="popup">
+	<span class="tc-tiny-gap-left"><<lingo Popup/Description>></span>
+</$radio>
+
+<$radio tiddler="$:/config/TiddlerInfo/Mode" value="sticky">
+	<span class="tc-tiny-gap-left"><<lingo Sticky/Description>></span>
+</$radio>

core/ui/ControlPanel/Settings/LinkToBehaviour.tid

@@ -2,21 +2,25 @@ title: $:/core/ui/ControlPanel/Settings/LinkToBehaviour
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/LinkToBehaviour/Caption}}
 
-\define lingo-base() $:/language/ControlPanel/Settings/LinkToBehaviour/
 \whitespace trim
+\define lingo-base() $:/language/ControlPanel/Settings/LinkToBehaviour/
 
-<$link to="$:/config/Navigation/openLinkFromInsideRiver"><<lingo "InsideRiver/Hint">></$link>
+<$link to="$:/config/Navigation/openLinkFromInsideRiver" class="tc-control-panel-item">
+	<<lingo "InsideRiver/Hint">>
+</$link>
 
-<$select tiddler="$:/config/Navigation/openLinkFromInsideRiver">
-  <option value="above"><<lingo "OpenAbove">></option>
-  <option value="below"><<lingo "OpenBelow">></option>
-  <option value="top"><<lingo "OpenAtTop">></option>
-  <option value="bottom"><<lingo "OpenAtBottom">></option>
+<$select tiddler="$:/config/Navigation/openLinkFromInsideRiver" class="tc-select">
+	<option value="above"><<lingo "OpenAbove">></option>
+	<option value="below"><<lingo "OpenBelow">></option>
+	<option value="top"><<lingo "OpenAtTop">></option>
+	<option value="bottom"><<lingo "OpenAtBottom">></option>
 </$select>
 
-<$link to="$:/config/Navigation/openLinkFromOutsideRiver"><<lingo "OutsideRiver/Hint">></$link>
+<$link to="$:/config/Navigation/openLinkFromOutsideRiver" class="tc-control-panel-item">
+	<<lingo "OutsideRiver/Hint">>
+</$link>
 
-<$select tiddler="$:/config/Navigation/openLinkFromOutsideRiver">
-  <option value="top"><<lingo "OpenAtTop">></option>
-  <option value="bottom"><<lingo "OpenAtBottom">></option>
+<$select tiddler="$:/config/Navigation/openLinkFromOutsideRiver" class="tc-select">
+	<option value="top"><<lingo "OpenAtTop">></option>
+	<option value="bottom"><<lingo "OpenAtBottom">></option>
 </$select>

core/ui/ControlPanel/Settings/MissingLinks.tid

@@ -2,8 +2,12 @@ title: $:/core/ui/ControlPanel/Settings/MissingLinks
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/MissingLinks/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/MissingLinks/
 <<lingo Hint>>
 
-<$checkbox tiddler="$:/config/MissingLinks" field="text" checked="yes" unchecked="no" default="yes"> <$link to="$:/config/MissingLinks"><<lingo Description>></$link> </$checkbox>
-
+<$checkbox tiddler="$:/config/MissingLinks" field="text" checked="yes" unchecked="no" default="yes">
+	<$link to="$:/config/MissingLinks" class="tc-control-panel-item">
+		<span class="tc-tiny-gap-left"><<lingo Description>></span>
+	</$link>
+</$checkbox>

core/ui/ControlPanel/Settings/NavigationAddressBar.tid

@@ -2,12 +2,21 @@ title: $:/core/ui/ControlPanel/Settings/NavigationAddressBar
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/NavigationAddressBar/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/NavigationAddressBar/
 
-<$link to="$:/config/Navigation/UpdateAddressBar"><<lingo Hint>></$link>
+<$link to="$:/config/Navigation/UpdateAddressBar" class="tc-control-panel-item">
+	<<lingo Hint>>
+</$link>
 
-<$radio tiddler="$:/config/Navigation/UpdateAddressBar" value="permaview"> <<lingo Permaview/Description>> </$radio>
+<$radio tiddler="$:/config/Navigation/UpdateAddressBar" value="permaview">
+	<span class="tc-tiny-gap-left"><<lingo Permaview/Description>></span>
+</$radio>
 
-<$radio tiddler="$:/config/Navigation/UpdateAddressBar" value="permalink"> <<lingo Permalink/Description>> </$radio>
+<$radio tiddler="$:/config/Navigation/UpdateAddressBar" value="permalink">
+	<span class="tc-tiny-gap-left"><<lingo Permalink/Description>></span>
+</$radio>
 
-<$radio tiddler="$:/config/Navigation/UpdateAddressBar" value="no"> <<lingo No/Description>> </$radio>
+<$radio tiddler="$:/config/Navigation/UpdateAddressBar" value="no">
+	<span class="tc-tiny-gap-left"><<lingo No/Description>></span>
+</$radio>

core/ui/ControlPanel/Settings/NavigationHistory.tid

@@ -2,9 +2,17 @@ title: $:/core/ui/ControlPanel/Settings/NavigationHistory
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/NavigationHistory/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/NavigationHistory/
-<$link to="$:/config/Navigation/UpdateHistory"><<lingo Hint>></$link>
 
-<$radio tiddler="$:/config/Navigation/UpdateHistory" value="yes"> <<lingo Yes/Description>> </$radio>
+<$link to="$:/config/Navigation/UpdateHistory" class="tc-control-panel-item">
+	<<lingo Hint>>
+</$link>
 
-<$radio tiddler="$:/config/Navigation/UpdateHistory" value="no"> <<lingo No/Description>> </$radio>
+<$radio tiddler="$:/config/Navigation/UpdateHistory" value="yes">
+	<span class="tc-tiny-gap-left"><<lingo Yes/Description>></span>
+</$radio>
+
+<$radio tiddler="$:/config/Navigation/UpdateHistory" value="no">
+	<span class="tc-tiny-gap-left"><<lingo No/Description>></span>
+</$radio>

core/ui/ControlPanel/Settings/NavigationPermalinkviewMode.tid

@@ -2,9 +2,24 @@ title: $:/core/ui/ControlPanel/Settings/NavigationPermalinkviewMode
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/NavigationPermalinkviewMode/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/NavigationPermalinkviewMode/
 <<lingo Hint>>
 
-<$checkbox tiddler="$:/config/Navigation/Permalinkview/CopyToClipboard" field="text" checked="yes" unchecked="no" default="yes"> <$link to="$:/config/Navigation/Permalinkview/CopyToClipboard"><<lingo CopyToClipboard/Description>></$link> </$checkbox>
+<$checkbox tiddler="$:/config/Navigation/Permalinkview/CopyToClipboard"
+	field="text" checked="yes" unchecked="no" default="yes"
+	class="tc-control-panel-item"
+>
+	<$link to="$:/config/Navigation/Permalinkview/CopyToClipboard" class="tc-tiny-gap-left">
+		<<lingo CopyToClipboard/Description>>
+	</$link>
+</$checkbox>
 
-<$checkbox tiddler="$:/config/Navigation/Permalinkview/UpdateAddressBar" field="text" checked="yes" unchecked="no" default="yes"> <$link to="$:/config/Navigation/Permalinkview/UpdateAddressBar"><<lingo UpdateAddressBar/Description>></$link> </$checkbox>
+<$checkbox tiddler="$:/config/Navigation/Permalinkview/UpdateAddressBar"
+	field="text" checked="yes" unchecked="no" default="yes"
+	class="tc-control-panel-item"
+>
+	<$link to="$:/config/Navigation/Permalinkview/UpdateAddressBar" class="tc-tiny-gap-left">
+		<<lingo UpdateAddressBar/Description>>
+	</$link>
+</$checkbox>

core/ui/ControlPanel/Settings/PerformanceInstrumentation.tid

@@ -2,7 +2,15 @@ title: $:/core/ui/ControlPanel/Settings/PerformanceInstrumentation
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/PerformanceInstrumentation/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/PerformanceInstrumentation/
 <<lingo Hint>>
 
-<$checkbox tiddler="$:/config/Performance/Instrumentation" field="text" checked="yes" unchecked="no" default="no"> <$link to="$:/config/Performance/Instrumentation"><<lingo Description>></$link> </$checkbox>
+<$checkbox tiddler="$:/config/Performance/Instrumentation"
+	field="text" checked="yes" unchecked="no" default="no"
+	class="tc-control-panel-item"
+>
+	<$link to="$:/config/Performance/Instrumentation" class="tc-tiny-gap-left">
+		<<lingo Description>>
+	</$link>
+</$checkbox>

core/ui/ControlPanel/Settings/TitleLinks.tid

@@ -2,9 +2,17 @@ title: $:/core/ui/ControlPanel/Settings/TitleLinks
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/TitleLinks/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/TitleLinks/
-<$link to="$:/config/Tiddlers/TitleLinks"><<lingo Hint>></$link>
 
-<$radio tiddler="$:/config/Tiddlers/TitleLinks" value="yes"> <<lingo Yes/Description>> </$radio>
+<$link to="$:/config/Tiddlers/TitleLinks" class="tc-control-panel-item">
+	<<lingo Hint>>
+</$link>
 
-<$radio tiddler="$:/config/Tiddlers/TitleLinks" value="no"> <<lingo No/Description>> </$radio>
+<$radio tiddler="$:/config/Tiddlers/TitleLinks" value="yes">
+	<span class="tc-tiny-gap-left"><<lingo Yes/Description>></span>
+</$radio>
+
+<$radio tiddler="$:/config/Tiddlers/TitleLinks" value="no">
+	<span class="tc-tiny-gap-left"><<lingo No/Description>></span>
+</$radio>

core/ui/ControlPanel/Settings/ToolbarButtonStyle.tid

@@ -2,12 +2,15 @@ title: $:/core/ui/ControlPanel/Settings/ToolbarButtonStyle
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/ToolbarButtonStyle/Caption}}
 
-\define lingo-base() $:/language/ControlPanel/Settings/ToolbarButtonStyle/
 \whitespace trim
-<$link to="$:/config/Toolbar/ButtonClass"><<lingo "Hint">></$link>
+\define lingo-base() $:/language/ControlPanel/Settings/ToolbarButtonStyle/
 
-<$select tiddler="$:/config/Toolbar/ButtonClass">
-<$list filter="[all[shadows+tiddlers]tag[$:/tags/ToolbarButtonStyle]]">
-<option value={{!!text}}>{{!!caption}}</option>
-</$list>
+<$link to="$:/config/Toolbar/ButtonClass" class="tc-control-panel-item">
+	<<lingo "Hint">>
+</$link>
+
+<$select tiddler="$:/config/Toolbar/ButtonClass" class="tc-select">
+	<$list filter="[all[shadows+tiddlers]tag[$:/tags/ToolbarButtonStyle]]">
+		<option value={{!!text}}>{{!!caption}}</option>
+	</$list>
 </$select>

core/ui/ControlPanel/Settings/ToolbarButtons.tid

@@ -2,9 +2,24 @@ title: $:/core/ui/ControlPanel/Settings/ToolbarButtons
 tags: $:/tags/ControlPanel/Settings
 caption: {{$:/language/ControlPanel/Settings/ToolbarButtons/Caption}}
 
+\whitespace trim
 \define lingo-base() $:/language/ControlPanel/Settings/ToolbarButtons/
 <<lingo Hint>>
 
-<$checkbox tiddler="$:/config/Toolbar/Icons" field="text" checked="yes" unchecked="no" default="yes"> <$link to="$:/config/Toolbar/Icons"><<lingo Icons/Description>></$link> </$checkbox>
+<$checkbox tiddler="$:/config/Toolbar/Icons"
+	field="text" checked="yes" unchecked="no" default="yes"
+	class="tc-control-panel-item"
+>
+	<$link to="$:/config/Toolbar/Icons" class="tc-tiny-gap-left">
+		<<lingo Icons/Description>>
+	</$link>
+</$checkbox>
 
-<$checkbox tiddler="$:/config/Toolbar/Text" field="text" checked="yes" unchecked="no" default="no"> <$link to="$:/config/Toolbar/Text"><<lingo Text/Description>></$link> </$checkbox>
+<$checkbox tiddler="$:/config/Toolbar/Text"
+	field="text" checked="yes" unchecked="no" default="no"
+	class="tc-control-panel-item"
+>
+	<$link to="$:/config/Toolbar/Text" class="tc-tiny-gap-left">
+		<<lingo Text/Description>>
+	</$link>
+</$checkbox>

core/ui/ControlPanel/TiddlyWiki.tid

@@ -9,9 +9,9 @@ list-before:
 
 <$list filter="[all[shadows+tiddlers]tag[$:/tags/ControlPanel/Settings]]">
 
-<div style="border-top:1px solid #eee;">
+<div class="tc-control-panel-setting" data-setting-title=<<currentTiddler>> style="border-top:1px solid #eee;">
 
-!! <$link><$transclude field="caption"/></$link>
+!!.tc-control-panel-accent <$link><$transclude field="caption"/></$link>
 
 <$transclude/>
 

core/ui/EditTemplate/body/default.tid

@@ -1,5 +1,9 @@
 title: $:/core/ui/EditTemplate/body/default
 
+\function edit-preview-state()
+[{$:/config/ShowEditPreview/PerTiddler}!match[yes]then[$:/state/showeditpreview]] :else[<qualified-preview-state>] +[get[text]] :else[[no]]
+\end
+
 \define config-visibility-title()
 $:/config/EditorToolbarButtons/Visibility/$(currentTiddler)$
 \end
@@ -10,15 +14,18 @@ $:/config/EditorToolbarButtons/Visibility/$(currentTiddler)$
 
 \whitespace trim
 <$let
-	edit-preview-state={{{ [{$:/config/ShowEditPreview/PerTiddler}!match[yes]then[$:/state/showeditpreview]] :else[<qualify "$:/state/showeditpreview">] }}}
+	qualified-preview-state=<<qualify "$:/state/showeditpreview">>
+	editPreviewStateTiddler={{{ [{$:/config/ShowEditPreview/PerTiddler}!match[yes]then[$:/state/showeditpreview]] :else[<qualified-preview-state>] }}}
 	importTitle=<<qualify $:/ImportImage>>
 	importState=<<qualify $:/state/ImportImage>> >
 <$dropzone importTitle=<<importTitle>> autoOpenOnImport="no" contentTypesFilter={{$:/config/Editor/ImportContentTypesFilter}} class="tc-dropzone-editor" enable={{{ [{$:/config/DragAndDrop/Enable}match[no]] :else[subfilter{$:/config/Editor/EnableImportFilter}then[yes]else[no]] }}} filesOnly="yes" actions=<<importFileActions>> >
-<$reveal stateTitle=<<edit-preview-state>> type="match" text="yes" tag="div">
-<div class="tc-tiddler-preview">
+<div>
+<div class={{{ [<edit-preview-state>match[yes]then[tc-tiddler-preview]else[tc-tiddler-preview-hidden]] [[tc-tiddler-editor]] +[join[ ]] }}}>
 
 <$transclude tiddler="$:/core/ui/EditTemplate/body/editor" mode="inline"/>
 
+<$list filter="[<editPreviewStateTiddler>get[text]match[yes]]" variable="ignore">
+
 <div class="tc-tiddler-preview-preview" data-tiddler-title={{!!draft.title}} data-tags={{!!tags}}>
 
 <$transclude tiddler={{$:/state/editpreviewtype}} mode="inline">
@@ -29,13 +36,12 @@ $:/config/EditorToolbarButtons/Visibility/$(currentTiddler)$
 
 </div>
 
+</$list>
+
 </div>
-</$reveal>
 
-<$reveal stateTitle=<<edit-preview-state>> type="nomatch" text="yes" tag="div">
+</div>
 
-<$transclude tiddler="$:/core/ui/EditTemplate/body/editor" mode="inline"/>
-
-</$reveal>
 </$dropzone>
+
 </$let>

core/ui/EditTemplate/controls.tid

@@ -1,12 +1,18 @@
 title: $:/core/ui/EditTemplate/controls
 tags: $:/tags/EditTemplate
 
-\define config-title()
-$:/config/EditToolbarButtons/Visibility/$(listItem)$
-\end
+\define config-title() $:/config/EditToolbarButtons/Visibility/$(listItem)$
 \whitespace trim
 <div class="tc-tiddler-title tc-tiddler-edit-title">
-<$view field="title"/>
-<span class="tc-tiddler-controls tc-titlebar"><$list filter="[all[shadows+tiddlers]tag[$:/tags/EditToolbar]!has[draft.of]]" variable="listItem"><$let tv-config-toolbar-class={{{ [enlist<tv-config-toolbar-class>] [<listItem>encodeuricomponent[]addprefix[tc-btn-]] +[join[ ]]}}}><$reveal type="nomatch" state=<<config-title>> text="hide"><$transclude tiddler=<<listItem>>/></$reveal></$let></$list></span>
-<div style="clear: both;"></div>
+	<$view field="title"/>
+	<span class="tc-tiddler-controls tc-titlebar">
+		<$list filter="[all[shadows+tiddlers]tag[$:/tags/EditToolbar]!has[draft.of]]" variable="listItem">
+			<$let tv-config-toolbar-class={{{ [enlist<tv-config-toolbar-class>] [<listItem>encodeuricomponent[]addprefix[tc-btn-]] +[join[ ]] }}}>
+				<$reveal type="nomatch" state=<<config-title>> text="hide">
+					<$transclude $tiddler=<<listItem>>/>
+				</$reveal>
+			</$let>
+		</$list>
+	</span>
+	<div style="clear: both;"></div>
 </div>

core/ui/EditTemplate/fields.tid

@@ -54,7 +54,7 @@ $:/config/EditTemplateFields/Visibility/$(currentField)$
 \whitespace trim
 <$vars name={{{ [<newFieldNameTiddler>get[text]] }}}>
 <$reveal type="nomatch" text="" default=<<name>>>
-<$button tooltip=<<lingo Fields/Add/Button/Hint>>>
+<$button tooltip={{$:/language/EditTemplate/Fields/Add/Button/Hint}}>
 <$action-sendmessage $message="tm-add-field"
 $name=<<name>>
 $value={{{ [subfilter<get-field-value-tiddler-filter>get[text]] }}}/>
@@ -89,7 +89,7 @@ $value={{{ [subfilter<get-field-value-tiddler-filter>get[text]] }}}/>
 </td>
 <td class="tc-edit-field-remove">
 <$button class="tc-btn-invisible" tooltip={{$:/language/EditTemplate/Field/Remove/Hint}} aria-label={{$:/language/EditTemplate/Field/Remove/Caption}}>
-<$action-deletefield $field=<<currentField>>/><$set name="currentTiddlerCSSescaped" value={{{ [<currentTiddler>escapecss[]] }}}><$action-sendmessage $message="tm-focus-selector" $param=<<current-tiddler-new-field-selector>>/></$set>
+<$action-deletefield $field=<<currentField>>/>
 {{$:/core/images/delete-button}}
 </$button>
 </td>

core/ui/EditTemplate/tags.tid

@@ -3,39 +3,63 @@ tags: $:/tags/EditTemplate
 
 \whitespace trim
 
-\define lingo-base() $:/language/EditTemplate/
+\procedure lingo-base() $:/language/EditTemplate/
 
-\define tag-styles()
-background-color:$(backgroundColor)$;
-fill:$(foregroundColor)$;
-color:$(foregroundColor)$;
+\procedure tag-body-inner(colour,fallbackTarget,colourA,colourB,icon,tagField:"tags")
+<$wikify name="foregroundColor"
+	text="""<$macrocall $name="contrastcolour"
+		target=<<colour>>
+		fallbackTarget=<<fallbackTarget>>
+		colourA=<<colourA>>
+		colourB=<<colourB>>/>
+	"""
+>
+	<$let backgroundColor=<<colour>> >
+		<span class="tc-tag-label tc-tag-list-item tc-small-gap-right"
+			data-tag-title=<<currentTiddler>>
+			style.color=<<foregroundColor>>
+			style.fill=<<foregroundColor>>
+			style.background-color=<<backgroundColor>>
+		>
+			<$transclude tiddler=<<icon>>/>
+			<$view field="title" format="text"/>
+			<$button class="tc-btn-invisible tc-remove-tag-button"
+				style.fill=<<foregroundColor>>
+			>
+				<$action-listops $tiddler=<<saveTiddler>> $field=<<tagField>> $subfilter="-[{!!title}]"/>
+				{{$:/core/images/close-button}}
+			</$button>
+		</span>
+	</$let>
+</$wikify>
 \end
 
-\define tag-body-inner(colour,fallbackTarget,colourA,colourB,icon,tagField:"tags")
-\whitespace trim
-<$vars foregroundColor=<<contrastcolour target:"""$colour$""" fallbackTarget:"""$fallbackTarget$""" colourA:"""$colourA$""" colourB:"""$colourB$""">> backgroundColor="""$colour$""">
-<span style=<<tag-styles>> class="tc-tag-label tc-tag-list-item tc-small-gap-right" data-tag-title=<<currentTiddler>>>
-<$transclude tiddler="""$icon$"""/><$view field="title" format="text"/>
-<$button class="tc-btn-invisible tc-remove-tag-button" style=<<tag-styles>>><$action-listops $tiddler=<<saveTiddler>> $field=<<__tagField__>> $subfilter="-[{!!title}]"/>{{$:/core/images/close-button}}</$button>
-</span>
-</$vars>
+\procedure tag-body(colour,palette,icon,tagField:"tags")
+<$macrocall $name="tag-body-inner"
+	colour=`$(colour)$`
+	colourA={{{ [<palette>getindex[foreground]] }}}
+	colourB={{{ [<palette>getindex[background]] }}}
+	fallbackTarget={{{ [<palette>getindex[tag-background]] }}}
+	icon=<<icon>>
+	tagField=<<tagField>>
+/>
 \end
 
-\define tag-body(colour,palette,icon,tagField:"tags")
-<$macrocall $name="tag-body-inner" colour="""$colour$""" fallbackTarget={{$palette$##tag-background}} colourA={{$palette$##foreground}} colourB={{$palette$##background}} icon="""$icon$""" tagField=<<__tagField__>>/>
-\end
-
-\define edit-tags-template(tagField:"tags")
-\whitespace trim
+\procedure edit-tags-template(tagField:"tags")
 <div class="tc-edit-tags">
-<$list filter="[list[!!$tagField$]sort[title]]" storyview="pop">
-<$macrocall $name="tag-body" colour={{{ [<currentTiddler>] :cascade[all[shadows+tiddlers]tag[$:/tags/TiddlerColourFilter]!is[draft]get[text]] }}} palette={{$:/palette}} icon={{{ [<currentTiddler>] :cascade[all[shadows+tiddlers]tag[$:/tags/TiddlerIconFilter]!is[draft]get[text]] }}} tagField=<<__tagField__>>/>
-</$list>
-<$vars tabIndex={{$:/config/EditTabIndex}} cancelPopups="yes">
-<$macrocall $name="tag-picker" tagField=<<__tagField__>>/>
-</$vars>
+	<$list filter="[<currentTiddler>get<tagField>enlist-input[]sort[title]]" storyview="pop">
+		<$macrocall $name="tag-body"
+			colour={{{ [<currentTiddler>] :cascade[all[shadows+tiddlers]tag[$:/tags/TiddlerColourFilter]!is[draft]get[text]] }}}
+			palette={{$:/palette}}
+			icon={{{ [<currentTiddler>] :cascade[all[shadows+tiddlers]tag[$:/tags/TiddlerIconFilter]!is[draft]get[text]] }}}
+			tagField=<<tagField>>
+		/>
+	</$list>
+	<$let tabIndex={{$:/config/EditTabIndex}} cancelPopups="yes">
+		<$macrocall $name="tag-picker" tagField=<<tagField>>/>
+	</$let>
 </div>
 \end
-<$set name="saveTiddler" value=<<currentTiddler>>>
-<$macrocall $name="edit-tags-template" tagField=<<tagField>>/>
-</$set>
+<$let saveTiddler=<<currentTiddler>>>
+	<$macrocall $name="edit-tags-template" tagField=<<tagField>>/>
+</$let>

core/ui/EditTemplate/type.tid

@@ -10,7 +10,7 @@ first-search-filter: [all[shadows+tiddlers]prefix[$:/language/Docs/Types/]sort[d
 <em class="tc-edit tc-small-gap-right"><<lingo Type/Prompt>></em>
 <div class="tc-type-selector-dropdown-wrapper">
 <div class="tc-type-selector"><$fieldmangler>
-<$macrocall $name="keyboard-driven-input" tiddler=<<currentTiddler>> storeTitle=<<typeInputTiddler>> refreshTitle=<<refreshTitle>> selectionStateTitle=<<typeSelectionTiddler>> field="type" tag="input" default="" placeholder={{$:/language/EditTemplate/Type/Placeholder}} focusPopup=<<qualify "$:/state/popup/type-dropdown">> class="tc-edit-typeeditor tc-edit-texteditor tc-popup-handle" tabindex={{$:/config/EditTabIndex}} focus={{{ [{$:/config/AutoFocus}match[type]then[true]] ~[[false]] }}} cancelPopups="yes" configTiddlerFilter="[[$:/core/ui/EditTemplate/type]]" inputCancelActions=<<input-cancel-actions>>/><$button popup=<<qualify "$:/state/popup/type-dropdown">> class="tc-btn-invisible tc-btn-dropdown tc-small-gap" tooltip={{$:/language/EditTemplate/Type/Dropdown/Hint}} aria-label={{$:/language/EditTemplate/Type/Dropdown/Caption}}>{{$:/core/images/down-arrow}}</$button><$button message="tm-remove-field" param="type" class="tc-btn-invisible tc-btn-icon" tooltip={{$:/language/EditTemplate/Type/Delete/Hint}} aria-label={{$:/language/EditTemplate/Type/Delete/Caption}}>{{$:/core/images/delete-button}}<$action-deletetiddler $filter="[<storeTitle>] [<refreshTitle>] [<selectionStateTitle>]"/></$button>
+<$macrocall $name="keyboard-driven-input" tiddler=<<currentTiddler>> storeTitle=<<typeInputTiddler>> refreshTitle=<<refreshTitle>> selectionStateTitle=<<typeSelectionTiddler>> field="type" tag="input" default="" placeholder={{$:/language/EditTemplate/Type/Placeholder}} focusPopup=<<qualify "$:/state/popup/type-dropdown">> class="tc-edit-typeeditor tc-edit-texteditor tc-popup-handle" tabindex={{$:/config/EditTabIndex}} focus={{{ [{$:/config/AutoFocus}match[type]then[true]] ~[[false]] }}} cancelPopups="yes" configTiddlerFilter="[[$:/core/ui/EditTemplate/type]]" inputCancelActions=<<input-cancel-actions>>/><$button popup=<<qualify "$:/state/popup/type-dropdown">> class="tc-btn-invisible tc-btn-dropdown tc-small-gap" tooltip={{$:/language/EditTemplate/Type/Dropdown/Hint}} aria-label={{$:/language/EditTemplate/Type/Dropdown/Caption}}>{{$:/core/images/down-arrow}}</$button><$button message="tm-remove-field" param="type" class="tc-btn-invisible tc-btn-icon" tooltip={{$:/language/EditTemplate/Type/Delete/Hint}} aria-label={{$:/language/EditTemplate/Type/Delete/Caption}}>{{$:/core/images/delete-button}}<$action-deletetiddler $filter="[<typeInputTiddler>] [<storeTitle>] [<refreshTitle>] [<selectionStateTitle>]"/></$button>
 </$fieldmangler></div>
 
 <div class="tc-block-dropdown-wrapper">

core/ui/EditorToolbar/preview.tid

@@ -9,11 +9,8 @@ button-classes: tc-text-editor-toolbar-item-start-group
 shortcuts: ((preview))
 
 \whitespace trim
-<$reveal state=<<edit-preview-state>> type="match" text="yes" tag="span">
-{{$:/core/images/preview-open}}
-<$action-setfield $tiddler=<<edit-preview-state>> $value="no"/>
-</$reveal>
-<$reveal state=<<edit-preview-state>> type="nomatch" text="yes" tag="span">
-{{$:/core/images/preview-closed}}
-<$action-setfield $tiddler=<<edit-preview-state>> $value="yes"/>
-</$reveal>
+<span>
+	<$transclude $tiddler={{{ [<edit-preview-state>match[yes]then[$:/core/images/preview-open]else[$:/core/images/preview-closed]] }}} />
+</span>
+<$action-setfield $tiddler=<<editPreviewStateTiddler>> $value={{{ [<editPreviewStateTiddler>get[text]toggle[yes],[no]] }}} />
+<$action-sendmessage $message="tm-edit-text-operation" $param="focus-editor"/>