Revert "Merge branch 'master' into getting-started-tweaks-feb-2023"

This reverts commit cff280b81a, reversing
changes made to 26cff6675c.

.gitignore

@@ -1,5 +1,7 @@
 .DS_Store
 .c9/
+.vscode/
 tmp/
 output/
 node_modules/
+

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=v5.2.3
+    TW5_BUILD_VERSION=v5.2.5
 fi
 
 echo "Using TW5_BUILD_VERSION as [$TW5_BUILD_VERSION]"
@@ -233,6 +233,15 @@ node $TW5_BUILD_TIDDLYWIKI \
 	--build index \
 	|| exit 1
 
+# /editions/twitter-archivist/index.html	Twitter Archivist edition
+node $TW5_BUILD_TIDDLYWIKI \
+	./editions/twitter-archivist \
+	--verbose \
+	--load $TW5_BUILD_OUTPUT/build.tid \
+	--output $TW5_BUILD_OUTPUT/editions/twitter-archivist/ \
+	--build index \
+	|| exit 1
+
 ######################################################
 #
 # Plugin demos
@@ -450,7 +459,7 @@ node $TW5_BUILD_TIDDLYWIKI \
 	--verbose \
 	--load $TW5_BUILD_OUTPUT/build.tid \
 	--output $TW5_BUILD_OUTPUT/library/$TW5_BUILD_VERSION \
-	--build \
+	--build library\
 	|| exit 1
 
 # Delete the temporary build tiddler

bin/test.sh

@@ -9,6 +9,7 @@ node ./tiddlywiki.js \
 	--verbose \
 	--version \
 	--rendertiddler $:/core/save/all test.html text/plain \
+	--test \
 	|| exit 1
 
 echo To run the tests in a browser, open "editions/test/output/test.html"

boot/boot.js

@@ -2403,11 +2403,11 @@ $tw.boot.initStartup = function(options) {
 	$tw.utils.registerFileType("application/x-font-ttf","base64",".woff");
 	$tw.utils.registerFileType("application/font-woff2","base64",".woff2");
 	$tw.utils.registerFileType("audio/ogg","base64",".ogg");
+	$tw.utils.registerFileType("audio/mp4","base64",[".mp4",".m4a"]);
 	$tw.utils.registerFileType("video/ogg","base64",[".ogm",".ogv",".ogg"]);
 	$tw.utils.registerFileType("video/webm","base64",".webm");
 	$tw.utils.registerFileType("video/mp4","base64",".mp4");
 	$tw.utils.registerFileType("audio/mp3","base64",".mp3");
-	$tw.utils.registerFileType("audio/mp4","base64",[".mp4",".m4a"]);
 	$tw.utils.registerFileType("text/markdown","utf8",[".md",".markdown"],{deserializerType:"text/x-markdown"});
 	$tw.utils.registerFileType("text/x-markdown","utf8",[".md",".markdown"]);
 	$tw.utils.registerFileType("application/enex+xml","utf8",".enex");

core/images/layout-button.tid

@@ -0,0 +1,4 @@
+title: $:/core/images/layout-button
+tags: $:/tags/Image
+
+<svg width="22pt" height="22pt" class="tc-image-layout-button tc-image-button" viewBox="0 0 24 24" stroke-width="1" stroke="none"><path d="M0 0h24v24H0z" fill="none"/><rect x="2" y="2" width="7" height="7" rx="2"/><rect x="2" y="13" width="7" height="9" rx="2"/><rect x="12" y="2" width="10" height="20" rx="2"/></svg>

core/images/mastodon.tid

@@ -0,0 +1,6 @@
+title: $:/core/images/mastodon
+tags: $:/tags/Image
+
+<svg width="22pt" height="22pt" class="tc-image-mastodon tc-image-button" viewBox="0 0 128 128">
+  <path d="M112.716,76.735C111.231,85.764 99.411,95.646 85.836,97.561C78.757,98.559 71.787,99.476 64.355,99.073C52.201,98.415 42.61,95.646 42.61,95.646C42.61,97.044 42.683,98.374 42.829,99.619C44.409,113.79 54.723,114.639 64.493,115.035C74.354,115.434 83.134,112.163 83.134,112.163L83.539,122.695C83.539,122.695 76.642,127.071 64.355,127.875C57.58,128.315 49.167,127.674 39.369,124.61C18.118,117.965 14.463,91.202 13.904,64.048C13.733,55.985 13.839,48.383 13.839,42.024C13.839,14.257 29.238,6.118 29.238,6.118C37.002,1.905 50.326,0.134 64.177,-0L64.517,-0C78.369,0.134 91.701,1.905 99.465,6.118C99.465,6.118 114.864,14.257 114.864,42.024C114.864,42.024 115.057,62.511 112.716,76.735ZM96.7,44.179C96.7,37.307 95.219,31.847 92.245,27.807C89.177,23.767 85.16,21.696 80.174,21.696C74.403,21.696 70.034,24.316 67.146,29.556L64.337,35.118L61.529,29.556C58.64,24.316 54.271,21.696 48.501,21.696C43.514,21.696 39.497,23.767 36.43,27.807C33.455,31.847 31.974,37.307 31.974,44.179L31.974,77.8L43.249,77.8L43.249,45.167C43.249,38.288 45.699,34.796 50.599,34.796C56.017,34.796 58.733,38.938 58.733,47.128L58.733,64.99L69.941,64.99L69.941,47.128C69.941,38.938 72.657,34.796 78.075,34.796C82.975,34.796 85.425,38.288 85.425,45.167L85.425,77.8L96.7,77.8L96.7,44.179Z"/>
+</svg>

core/language/en-GB/Buttons.multids

@@ -59,6 +59,8 @@ Home/Caption: home
 Home/Hint: Open the default tiddlers
 Language/Caption: language
 Language/Hint: Choose the user interface language
+LayoutSwitcher/Hint: Open layout switcher
+LayoutSwitcher/Caption: layout
 Manager/Caption: tiddler manager
 Manager/Hint: Open tiddler manager
 More/Caption: more

core/language/en-GB/ControlPanel.multids

@@ -7,7 +7,7 @@ Appearance/Hint: Ways to customise the appearance of your TiddlyWiki.
 Basics/AnimDuration/Prompt: Animation duration
 Basics/AutoFocus/Prompt: Default focus field for new tiddlers
 Basics/Caption: Basics
-Basics/DefaultTiddlers/BottomHint: Use &#91;&#91;double square brackets&#93;&#93; for titles with spaces. Or you can choose to <$button set="$:/DefaultTiddlers" setTo="[list[$:/StoryList]]">retain story ordering</$button>
+Basics/DefaultTiddlers/BottomHint: Use &#91;&#91;double square brackets&#93;&#93; for titles with spaces. Or you can choose to {{retain story ordering||$:/snippets/retain-story-ordering-button}}
 Basics/DefaultTiddlers/Prompt: Default tiddlers
 Basics/DefaultTiddlers/TopHint: Choose which tiddlers are displayed at startup
 Basics/Language/Prompt: Hello! Current language:
@@ -90,8 +90,8 @@ Plugins/Languages/Caption: Languages
 Plugins/Languages/Hint: Language pack plugins
 Plugins/NoInfoFound/Hint: No ''"<$text text=<<currentTab>>/>"'' found
 Plugins/NotInstalled/Hint: This plugin is not currently installed
-Plugins/OpenPluginLibrary: open plugin library
-Plugins/ClosePluginLibrary: close plugin library
+Plugins/OpenPluginLibrary: Open plugin library
+Plugins/ClosePluginLibrary: Close plugin library
 Plugins/PluginWillRequireReload: (requires reload)
 Plugins/Plugins/Caption: Plugins
 Plugins/Plugins/Hint: Plugins

core/language/en-GB/Fields.multids

@@ -13,7 +13,7 @@ dependents: For a plugin, lists the dependent plugin titles
 description: The descriptive text for a plugin, or a modal dialogue
 draft.of: For draft tiddlers, contains the title of the tiddler of which this is a draft
 draft.title: For draft tiddlers, contains the proposed new title of the tiddler
-footer: The footer text for a wizard
+footer: The footer text for a modal
 hide-body: The view template will hide bodies of tiddlers if set to ''yes''
 icon: The title of the tiddler containing the icon associated with a tiddler
 library: Indicates that a tiddler should be saved as a JavaScript library if set to ''yes''
@@ -28,7 +28,7 @@ plugin-type: The type of plugin in a plugin tiddler
 revision: The revision of the tiddler held at the server
 released: Date of a TiddlyWiki release
 source: The source URL associated with a tiddler
-subtitle: The subtitle text for a wizard
+subtitle: The subtitle text for a modal
 tags: A list of tags associated with a tiddler
 text: The body text of a tiddler
 throttle.refresh: If present, throttles refreshes of this tiddler

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

@@ -0,0 +1,18 @@
+title: $:/language/Help/commands
+description: Run commands returned from a filter
+
+Sequentially run the command tokens returned from a filter
+
+```
+--commands <filter>
+```
+
+Examples
+
+```
+--commands "[enlist{$:/build-commands-as-text}]"
+```
+
+```
+--commands "[{$:/build-commands-as-json}jsonindexes[]] :map[{$:/build-commands-as-json}jsonget<currentTiddler>]"
+```

core/modules/commands/commands.js

@@ -0,0 +1,42 @@
+/*\
+title: $:/core/modules/commands/commands.js
+type: application/javascript
+module-type: command
+
+Runs the commands returned from a filter
+
+\*/
+
+(function() {
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.info = {
+	name: "commands",
+	synchronous: true
+};
+
+var Command = function(params, commander) {
+	this.params = params;
+	this.commander = commander;
+};
+
+Command.prototype.execute = function() {
+	// Parse the filter
+	var filter = this.params[0];
+	if(!filter) {
+		return "No filter specified";
+	}
+	var commands = this.commander.wiki.filterTiddlers(filter)
+	if(commands.length === 0) {
+		return "No tiddlers found for filter '" + filter + "'";
+	}
+	this.commander.addCommandTokens(commands);
+	return null;
+};
+
+exports.Command = Command;
+
+})();

core/modules/editor/engines/framed.js

@@ -87,7 +87,7 @@ function FramedEngine(options) {
 	$tw.utils.addEventListeners(this.domNode,[
 		{name: "click",handlerObject: this,handlerMethod: "handleClickEvent"},
 		{name: "input",handlerObject: this,handlerMethod: "handleInputEvent"},
-		{name: "keydown",handlerObject: this.widget,handlerMethod: "handleKeydownEvent"},
+		{name: "keydown",handlerObject: this,handlerMethod: "handleKeydownEvent"},
 		{name: "focus",handlerObject: this,handlerMethod: "handleFocusEvent"}
 	]);
 	// Add drag and drop event listeners if fileDrop is enabled
@@ -192,6 +192,17 @@ FramedEngine.prototype.handleFocusEvent = function(event) {
 	}
 };
 
+/*
+Handle a keydown event
+ */
+FramedEngine.prototype.handleKeydownEvent = function(event) {
+	if ($tw.keyboardManager.handleKeydownEvent(event, {onlyPriority: true})) {
+		return true;
+	}
+
+	return this.widget.handleKeydownEvent(event);
+};
+
 /*
 Handle a click
 */

core/modules/editor/factory.js

@@ -298,7 +298,7 @@ function editTextWidgetFactory(toolbarEngine,nonToolbarEngine) {
 	Propogate keydown events to our container for the keyboard widgets benefit
 	*/
 	EditTextWidget.prototype.propogateKeydownEvent = function(event) {
-		var newEvent = this.cloneEvent(event,["keyCode","which","metaKey","ctrlKey","altKey","shiftKey"]);
+		var newEvent = this.cloneEvent(event,["keyCode","code","which","key","metaKey","ctrlKey","altKey","shiftKey"]);
 		return !this.parentDomNode.dispatchEvent(newEvent);
 	};
 

core/modules/filters/is/variable.js

@@ -19,13 +19,13 @@ exports.variable = function(source,prefix,options) {
 	var results = [];
 	if(prefix === "!") {
 		source(function(tiddler,title) {
-			if(!(title in options.widget.variables)) {
+			if(options.widget.getVariable(title) === undefined) {
 				results.push(title);
 			}
 		});
 	} else {
 		source(function(tiddler,title) {
-			if(title in options.widget.variables) {
+			if(options.widget.getVariable(title) !== undefined) {
 				results.push(title);
 			}
 		});

core/modules/filters/json-ops.js

@@ -17,9 +17,23 @@ exports["jsonget"] = function(source,operator,options) {
 	source(function(tiddler,title) {
 		var data = $tw.utils.parseJSONSafe(title,title);
 		if(data) {
-			var item = getDataItemValueAsString(data,operator.operands);
+			var items = getDataItemValueAsStrings(data,operator.operands);
+			if(items !== undefined) {
+				results.push.apply(results,items);
+			}
+		}
+	});
+	return results;
+};
+
+exports["jsonextract"] = function(source,operator,options) {
+	var results = [];
+	source(function(tiddler,title) {
+		var data = $tw.utils.parseJSONSafe(title,title);
+		if(data) {
+			var item = getDataItem(data,operator.operands);
 			if(item !== undefined) {
-				results.push(item);
+				results.push(JSON.stringify(item));
 			}
 		}
 	});
@@ -31,9 +45,9 @@ exports["jsonindexes"] = function(source,operator,options) {
 	source(function(tiddler,title) {
 		var data = $tw.utils.parseJSONSafe(title,title);
 		if(data) {
-			var item = getDataItemKeysAsStrings(data,operator.operands);
-			if(item !== undefined) {
-				results.push.apply(results,item);
+			var items = getDataItemKeysAsStrings(data,operator.operands);
+			if(items !== undefined) {
+				results.push.apply(results,items);
 			}
 		}
 	});
@@ -57,11 +71,11 @@ exports["jsontype"] = function(source,operator,options) {
 /*
 Given a JSON data structure and an array of index strings, return an array of the string representation of the values at the end of the index chain, or "undefined" if any of the index strings are invalid
 */
-function getDataItemValueAsString(data,indexes) {
+function getDataItemValueAsStrings(data,indexes) {
 	// Get the item
 	var item = getDataItem(data,indexes);
-	// Return the item as a string
-	return convertDataItemValueToString(item);
+	// Return the item as a string list
+	return convertDataItemValueToStrings(item);
 }
 
 /*
@@ -77,15 +91,34 @@ function getDataItemKeysAsStrings(data,indexes) {
 /*
 Return an array of the string representation of the values of a data item, or "undefined" if the item is undefined
 */
-function convertDataItemValueToString(item) {
+function convertDataItemValueToStrings(item) {
 	// Return the item as a string
 	if(item === undefined) {
-		return item;
+		return undefined;
+	} else if(item === null) {
+		return ["null"]
+	} else if(typeof item === "object") {
+		var results = [],i,t;
+		if($tw.utils.isArray(item)) {
+			// Return all the items in arrays recursively
+			for(i=0; i<item.length; i++) {
+				t = convertDataItemValueToStrings(item[i])
+				if(t !== undefined) {
+					results.push.apply(results,t);
+				}
+			}
+		} else {
+			// Return all the values in objects recursively
+			$tw.utils.each(Object.keys(item).sort(),function(key) {
+				t = convertDataItemValueToStrings(item[key]);
+				if(t !== undefined) {
+					results.push.apply(results,t);
+				}
+			});
+		}
+		return results;
 	}
-	if(typeof item === "object") {
-		return JSON.stringify(item);
-	}
-	return item.toString();
+	return [item.toString()];
 }
 
 /*

core/modules/filters/variables.js

@@ -16,9 +16,15 @@ Filter operator for returning the names of the active variables
 Export our filter function
 */
 exports.variables = function(source,operator,options) {
-	var names = [];
-	for(var variable in options.widget.variables) {
-		names.push(variable);
+	var names = [],
+		widget = options.widget;
+	while(widget && !widget.hasOwnProperty("variables")) {
+		widget = widget.parentWidget;
+	}
+	if(widget && widget.variables) {
+		for(var variable in widget.variables) {
+			names.push(variable);
+		}
 	}
 	return names.sort();
 };

core/modules/keyboard.js

@@ -141,6 +141,7 @@ function KeyboardManager(options) {
 	this.shortcutKeysList = [], // Stores the shortcut-key descriptors
 	this.shortcutActionList = [], // Stores the corresponding action strings
 	this.shortcutParsedList = []; // Stores the parsed key descriptors
+	this.shortcutPriorityList = []; // Stores the parsed shortcut priority
 	this.lookupNames = ["shortcuts"];
 	this.lookupNames.push($tw.platform.isMac ? "shortcuts-mac" : "shortcuts-not-mac")
 	this.lookupNames.push($tw.platform.isWindows ? "shortcuts-windows" : "shortcuts-not-windows");
@@ -318,12 +319,23 @@ KeyboardManager.prototype.updateShortcutLists = function(tiddlerList) {
 		this.shortcutKeysList[i] = tiddlerFields.key !== undefined ? tiddlerFields.key : undefined;
 		this.shortcutActionList[i] = tiddlerFields.text;
 		this.shortcutParsedList[i] = this.shortcutKeysList[i] !== undefined ? this.parseKeyDescriptors(this.shortcutKeysList[i]) : undefined;
+		this.shortcutPriorityList[i] = tiddlerFields.priority === "yes" ? true : false;
 	}
 };
 
-KeyboardManager.prototype.handleKeydownEvent = function(event) {
+/*
+event: the keyboard event object
+options:
+	onlyPriority: true if only priority global shortcuts should be invoked
+*/
+KeyboardManager.prototype.handleKeydownEvent = function(event, options) {
+	options = options || {};
 	var key, action;
 	for(var i=0; i<this.shortcutTiddlers.length; i++) {
+		if(options.onlyPriority && this.shortcutPriorityList[i] !== true) {
+			continue;
+		}
+
 		if(this.shortcutParsedList[i] !== undefined && this.checkKeyDescriptors(event,this.shortcutParsedList[i])) {
 			key = this.shortcutParsedList[i];
 			action = this.shortcutActionList[i];

core/modules/parsers/csvparser.js

@@ -13,6 +13,11 @@ The CSV text parser processes CSV files into a table wrapped in a scrollable wid
 "use strict";
 
 var CsvParser = function(type,text,options) {
+	// Special handler for tab-delimited files
+	if (type === 'text/tab-delimited-values' && !options.separator) {
+		options.separator = "\t";
+	}
+	
 	// Table framework
 	this.tree = [{
 		"type": "scrollable", "children": [{
@@ -24,30 +29,33 @@ var CsvParser = function(type,text,options) {
 		}]
 	}];
 	// Split the text into lines
-	var lines = text.split(/\r?\n/mg),
+	var lines = $tw.utils.parseCsvString(text, options),
 		tag = "th";
+	var maxColumns = 0;
+	$tw.utils.each(lines, function(columns) {
+		maxColumns = Math.max(columns.length, maxColumns);
+	});
+	
 	for(var line=0; line<lines.length; line++) {
-		var lineText = lines[line];
-		if(lineText) {
-			var row = {
-					"type": "element", "tag": "tr", "children": []
-				};
-			var columns = lineText.split(",");
-			for(var column=0; column<columns.length; column++) {
-				row.children.push({
-						"type": "element", "tag": tag, "children": [{
-							"type": "text",
-							"text": columns[column]
-						}]
-					});
-			}
-			tag = "td";
-			this.tree[0].children[0].children[0].children.push(row);
+		var columns = lines[line];
+		var row = {
+			"type": "element", "tag": "tr", "children": []
+		};
+		for(var column=0; column<maxColumns; column++) {
+			row.children.push({
+				"type": "element", "tag": tag, "children": [{
+					"type": "text",
+					"text": columns[column] || ''
+				}]
+			});
 		}
+		tag = "td";
+		this.tree[0].children[0].children[0].children.push(row);
 	}
 };
 
 exports["text/csv"] = CsvParser;
+exports["text/tab-delimited-values"] = CsvParser;
 
 })();
 

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

@@ -58,7 +58,7 @@ exports.parse = function() {
 	var reEnd;
 	if(this.match[3]) {
 		// If so, the end of the body is marked with \end
-		reEnd = /(\r?\n\\end[^\S\n\r]*(?:$|\r?\n))/mg;
+		reEnd = new RegExp("(\\r?\\n\\\\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/parsermode.js

@@ -0,0 +1,68 @@
+/*\
+title: $:/core/modules/parsers/wikiparser/rules/parsermode.js
+type: application/javascript
+module-type: wikirule
+
+Wiki pragma rule for parser mode specifications
+
+```
+\parsermode block
+\parsermode inline
+```
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.name = "parsermode";
+exports.types = {pragma: true};
+
+/*
+Instantiate parse rule
+*/
+exports.init = function(parser) {
+	this.parser = parser;
+	// Regexp to match
+	this.matchRegExp = /^\\parsermode[^\S\n]/mg;
+};
+
+/*
+Parse the most recent match
+*/
+exports.parse = function() {
+	// Move past the pragma invocation
+	this.parser.pos = this.matchRegExp.lastIndex;
+	// Parse whitespace delimited tokens terminated by a line break
+	var reMatch = /[^\S\n]*(\S+)|(\r?\n)/mg,
+		parserMode = undefined;
+	reMatch.lastIndex = this.parser.pos;
+	var match = reMatch.exec(this.parser.source);
+	while(match && match.index === this.parser.pos) {
+		this.parser.pos = reMatch.lastIndex;
+		// Exit if we've got the line break
+		if(match[2]) {
+			break;
+		}
+		// Process the token
+		if(match[1]) {
+			parserMode = match[1];
+		}
+		// Match the next token
+		match = reMatch.exec(this.parser.source);
+	}
+	// Process the tokens
+	if(parserMode !== undefined) {
+		if(parserMode === "block") {
+			this.parser.parseAsInline = false;
+		} else if(parserMode === "inline") {
+			this.parser.parseAsInline = true;
+		}
+	}
+	// No parse tree nodes to return
+	return [];
+};
+
+})();

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

@@ -41,9 +41,6 @@ exports.parse = function() {
 	var node = {
 		type: "element",
 		tag: "span",
-		attributes: {
-			"class": {type: "string", value: "tc-inline-style"}
-		},
 		children: tree
 	};
 	if(classString) {
@@ -52,6 +49,9 @@ exports.parse = function() {
 	if(stylesString) {
 		$tw.utils.addAttributeToParseTreeNode(node,"style",stylesString);
 	}
+	if(!classString && !stylesString) {
+		$tw.utils.addClassToParseTreeNode(node,"tc-inline-style");
+	}
 	return [node];
 };
 

core/modules/parsers/wikiparser/wikiparser.js

@@ -47,6 +47,8 @@ var WikiParser = function(type,text,options) {
 	this.sourceLength = this.source.length;
 	// Flag for ignoring whitespace
 	this.configTrimWhiteSpace = false;
+	// Parser mode
+	this.parseAsInline = options.parseAsInline;
 	// Set current parse position
 	this.pos = 0;
 	// Start with empty output
@@ -83,7 +85,7 @@ var WikiParser = function(type,text,options) {
 	// Parse any pragmas
 	var topBranch = this.parsePragmas();
 	// Parse the text into inline runs or blocks
-	if(options.parseAsInline) {
+	if(this.parseAsInline) {
 		topBranch.push.apply(topBranch,this.parseInlineRun());
 	} else {
 		topBranch.push.apply(topBranch,this.parseBlocks());

core/modules/server/routes/put-tiddler.js

@@ -30,6 +30,16 @@ exports.handler = function(request,response,state) {
 	if(fields.revision) {
 		delete fields.revision;
 	}
+	// If this is a skinny tiddler, it means the client never got the full
+	// version of the tiddler to edit. So we must preserve whatever text
+	// already exists on the server, or else we'll inadvertently delete it.
+	if(fields._is_skinny !== undefined) {
+		var tiddler = state.wiki.getTiddler(title);
+		if(tiddler) {
+			fields.text = tiddler.fields.text;
+		}
+		delete fields._is_skinny;
+	}
 	state.wiki.addTiddler(new $tw.Tiddler(fields,{title: title}));
 	var changeCount = state.wiki.getChangeCount(title).toString();
 	response.writeHead(204, "OK",{

core/modules/startup/startup.js

@@ -121,7 +121,11 @@ exports.startup = function() {
 	});
 	// Set up the syncer object if we've got a syncadaptor
 	if($tw.syncadaptor) {
-		$tw.syncer = new $tw.Syncer({wiki: $tw.wiki, syncadaptor: $tw.syncadaptor});
+		$tw.syncer = new $tw.Syncer({
+			wiki: $tw.wiki,
+			syncadaptor: $tw.syncadaptor,
+			logging: $tw.wiki.getTiddlerText('$:/config/SyncLogging', "yes") === "yes"
+		});
 	}
 	// Setup the saver handler
 	$tw.saverHandler = new $tw.SaverHandler({

core/modules/utils/csv.js

@@ -12,35 +12,113 @@ A barebones CSV parser
 /*global $tw: false */
 "use strict";
 
+var QUOTE = '"';
+
+var getCellInfo = function(text, start, length, SEPARATOR) {
+	var isCellQuoted = text.charAt(start) === QUOTE;
+	var cellStart = isCellQuoted ? start + 1 : start;
+	
+	if (text.charAt(i) === SEPARATOR) {
+		return [cellStart, cellStart, false];
+	}
+	
+	for (var i = cellStart; i < length; i++) {
+		var cellCharacter = text.charAt(i);
+		var isEOL = cellCharacter === "\n" || cellCharacter === "\r";
+		
+		if (isEOL && !isCellQuoted) {
+			return [cellStart, i, false];
+			
+		} else if (cellCharacter === SEPARATOR && !isCellQuoted) {
+			return [cellStart, i, false];
+			
+		} else if (cellCharacter === QUOTE && isCellQuoted) {
+			var nextCharacter = i + 1 < length ? text.charAt(i + 1) : '';
+			if (nextCharacter !== QUOTE) {
+				return [cellStart, i, true];
+			} else {
+				i++;
+			}
+		}
+	}
+	
+	return [cellStart, i, isCellQuoted];
+}
+	
+exports.parseCsvString = function(text, options) {
+	if (!text) {
+		return [];
+	}
+	
+	options = options || {};
+	var SEPARATOR = options.separator || ",",
+		length = text.length,
+		rows = [],
+		nextRow = [];
+		
+	for (var i = 0; i < length; i++) {
+		var cellInfo = getCellInfo(text, i, length, SEPARATOR);
+		var cellText = text.substring(cellInfo[0], cellInfo[1]);
+		if (cellInfo[2]) {
+			cellText = cellText.replace(/""/g, '"');
+			cellInfo[1]++;
+		}
+		nextRow.push(cellText);
+		
+		i = cellInfo[1];
+		
+		var character = text.charAt(i);
+		var nextCharacter = i + 1 < length ? text.charAt(i + 1) : '';
+		
+		if (character === "\r" || character === "\n") {
+			// Edge case for empty rows
+			if (nextRow.length === 1 && nextRow[0] === '') {
+				nextRow.length = 0;
+			}
+			rows.push(nextRow);
+			nextRow = [];
+			
+			if (character === "\r") {
+				var nextCharacter = i + 1 < length ? text.charAt(i + 1) : '';
+				
+				if (nextCharacter === "\n") {
+					i++;
+				}
+			}
+		}
+	}
+	
+	// Special case if last cell in last row is an empty cell
+	if (text.charAt(length - 1) === SEPARATOR) {
+		nextRow.push("");
+	}
+	
+	rows.push(nextRow);
+	
+	return rows;
+}
+
 /*
 Parse a CSV string with a header row and return an array of hashmaps.
 */
 exports.parseCsvStringWithHeader = function(text,options) {
-	options = options || {};
-	var separator = options.separator || ",",
-		rows = text.split(/\r?\n/mg).map(function(row) {
-			return $tw.utils.trim(row);
-		}).filter(function(row) {
-			return row !== "";
-		});
-	if(rows.length < 1) {
-		return "Missing header row";
-	}
-	var headings = rows[0].split(separator),
-		results = [];
-	for(var row=1; row<rows.length; row++) {
-		var columns = rows[row].split(separator),
-			columnResult = Object.create(null);
-		if(columns.length !== headings.length) {
-			return "Malformed CSV row '" + rows[row] + "'";
+	var csv = $tw.utils.parseCsvString(text, options);
+	var headers = csv[0];
+	
+	csv = csv.slice(1);
+	for (var i = 0; i < csv.length; i++) {
+		var row = csv[i];
+		var rowObject = Object.create(null);
+
+		for(var columnIndex=0; columnIndex<headers.length; columnIndex++) {
+			var columnName = headers[columnIndex];
+			if (columnName) {
+				rowObject[columnName] = $tw.utils.trim(row[columnIndex] || "");
+			}
 		}
-		for(var column=0; column<columns.length; column++) {
-			var columnName = headings[column];
-			columnResult[columnName] = $tw.utils.trim(columns[column] || "");
-		}
-		results.push(columnResult);
+		csv[i] = rowObject;
 	}
-	return results;
+	return csv;
 }
 
 })();

core/modules/utils/dom/dom.js

@@ -12,6 +12,8 @@ Various static DOM-related utility functions.
 /*global $tw: false */
 "use strict";
 
+var Popup = require("$:/core/modules/utils/dom/popup.js");
+
 /*
 Determines whether element 'a' contains element 'b'
 Code thanks to John Resig, http://ejohn.org/blog/comparing-document-position/
@@ -294,8 +296,21 @@ exports.collectDOMVariables = function(selectedNode,domNode,event) {
 		});
 		
 		if(selectedNode.offsetLeft) {
-			// Add a variable with a popup coordinate string for the selected node
-			variables["tv-popup-coords"] = "(" + selectedNode.offsetLeft + "," + selectedNode.offsetTop +"," + selectedNode.offsetWidth + "," + selectedNode.offsetHeight + ")";
+			// Add variables with a (relative and absolute) popup coordinate string for the selected node
+			var nodeRect = {
+				left: selectedNode.offsetLeft,
+				top: selectedNode.offsetTop,
+				width: selectedNode.offsetWidth,
+				height: selectedNode.offsetHeight
+			};
+			variables["tv-popup-coords"] = Popup.buildCoordinates(Popup.coordinatePrefix.csOffsetParent,nodeRect);
+
+			var absRect = $tw.utils.extend({}, nodeRect);
+			for (var currentNode = selectedNode.offsetParent; currentNode; currentNode = currentNode.offsetParent) {
+				absRect.left += currentNode.offsetLeft;
+				absRect.top += currentNode.offsetTop;
+			}
+			variables["tv-popup-abs-coords"] = Popup.buildCoordinates(Popup.coordinatePrefix.csAbsolute,absRect);
 
 			// Add variables for offset of selected node
 			variables["tv-selectednode-posx"] = selectedNode.offsetLeft.toString();

core/modules/utils/dom/modal.js

@@ -26,6 +26,8 @@ Display a modal dialogue
 	options: see below
 Options include:
 	downloadLink: Text of a big download link to include
+	event: widget event
+	variables: from event.paramObject
 */
 Modal.prototype.display = function(title,options) {
 	options = options || {};
@@ -209,6 +211,10 @@ Modal.prototype.display = function(title,options) {
 	headerWidgetNode.addEventListener("tm-close-tiddler",closeHandler,false);
 	bodyWidgetNode.addEventListener("tm-close-tiddler",closeHandler,false);
 	footerWidgetNode.addEventListener("tm-close-tiddler",closeHandler,false);
+	// Whether to close the modal dialog when the mask (area outside the modal) is clicked
+	if(tiddler.fields && (tiddler.fields["mask-closable"] === "yes" || tiddler.fields["mask-closable"] === "true")) {
+		modalBackdrop.addEventListener("click",closeHandler,false);
+	}
 	// Set the initial styles for the message
 	$tw.utils.setStyle(modalBackdrop,[
 		{opacity: "0"}

core/modules/utils/dom/popup.js

@@ -22,6 +22,19 @@ var Popup = function(options) {
 	this.popups = []; // Array of {title:,wiki:,domNode:} objects
 };
 
+/*
+Global regular expression for parsing the location of a popup.
+This is also used by the Reveal widget.
+*/
+exports.popupLocationRegExp = /^(@?)\((-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+)\)$/
+
+/*
+Objekt containing the available prefixes for coordinates build with the `buildCoordinates` function:
+ - csOffsetParent: Uses a coordinate system based on the offset parent (no prefix).
+ - csAbsolute: Use an absolute coordinate system (prefix "@").
+*/
+exports.coordinatePrefix = { csOffsetParent: "", csAbsolute: "@" }
+
 /*
 Trigger a popup open or closed. Parameters are in a hashmap:
 	title: title of the tiddler where the popup details are stored
@@ -136,8 +149,17 @@ Popup.prototype.show = function(options) {
 			height: options.domNode.offsetHeight
 		};
 	}
-	var popupRect = "(" + rect.left + "," + rect.top + "," + 
-				rect.width + "," + rect.height + ")";
+	if(options.absolute && options.domNode) {
+		// Walk the offsetParent chain and add the position of the offsetParents to make
+		// the position absolute to the root node of the page.
+		var currentNode = options.domNode.offsetParent;
+		while(currentNode) {
+			rect.left += currentNode.offsetLeft;
+			rect.top += currentNode.offsetTop;
+			currentNode = currentNode.offsetParent;
+		}
+	}
+	var popupRect = exports.buildCoordinates(options.absolute?exports.coordinatePrefix.csAbsolute:exports.coordinatePrefix.csOffsetParent,rect);
 	if(options.noStateReference) {
 		options.wiki.setText(options.title,"text",undefined,popupRect);
 	} else {
@@ -172,13 +194,54 @@ Popup.prototype.cancel = function(level) {
 };
 
 /*
-Returns true if the specified title and text identifies an active popup
+Returns true if the specified title and text identifies an active popup.
+This function is safe to call, even if the popup class was not initialized.
 */
-Popup.prototype.readPopupState = function(text) {
-	var popupLocationRegExp = /^\((-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+)\)$/;
-	return popupLocationRegExp.test(text);
+exports.readPopupState = function(text) {
+	return exports.popupLocationRegExp.test(text);
 };
 
+/*
+Parses a coordinate string in the format `(x,y,w,h)` or `@(x,y,z,h)` and returns
+an object containing the position, width and height. The absolute-Mark is boolean
+value that indicates the coordinate system of the coordinates. If they start with
+an `@`, `absolute` is set to true and the coordinates are relative to the root
+element. If the initial `@` is missing, they are relative to the offset parent
+element and `absoute` is false.
+This function is safe to call, even if the popup class was not initialized.
+*/
+exports.parseCoordinates = function(coordinates) {
+	var match = exports.popupLocationRegExp.exec(coordinates);
+	if(match) {
+		return {
+			absolute: (match[1] === "@"),
+			left: parseFloat(match[2]),
+			top: parseFloat(match[3]),
+			width: parseFloat(match[4]),
+			height: parseFloat(match[5])
+		};
+	} else {
+		return false;
+	}
+}
+
+/*
+Builds a coordinate string from a coordinate system identifier and an object
+containing the left, top, width and height values.
+Use constants defined in coordinatePrefix to specify a coordinate system.
+If one of the parameters is invalid for building a coordinate string `(0,0,0,0)`
+will be returned.
+This function is safe to call, even if the popup class was not initialized.
+*/
+exports.buildCoordinates = function(prefix,position) {
+	var coord = prefix + "(" + position.left + "," + position.top + "," + position.width + "," + position.height + ")";
+	if (exports.popupLocationRegExp.test(coord)) {
+		return coord;
+	} else {
+		return "(0,0,0,0)";
+	}
+}
+
 exports.Popup = Popup;
 
 })();

core/modules/utils/linked-list.js

@@ -15,10 +15,11 @@ function LinkedList() {
 
 LinkedList.prototype.clear = function() {
 	// LinkedList performs the duty of both the head and tail node
-	this.next = Object.create(null);
-	this.prev = Object.create(null);
-	this.first = undefined;
-	this.last = undefined;
+	this.next = new LLMap();
+	this.prev = new LLMap();
+	// Linked list head initially points to itself
+	this.next.set(null, null);
+	this.prev.set(null, null);
 	this.length = 0;
 };
 
@@ -41,28 +42,29 @@ Push behaves like array.push and accepts multiple string arguments. But it also
 accepts a single array argument too, to be consistent with its other methods.
 */
 LinkedList.prototype.push = function(/* values */) {
-	var values = arguments;
+	var i, values = arguments;
 	if($tw.utils.isArray(values[0])) {
 		values = values[0];
 	}
-	for(var i = 0; i < values.length; i++) {
+	for(i = 0; i < values.length; i++) {
 		_assertString(values[i]);
 	}
-	for(var i = 0; i < values.length; i++) {
+	for(i = 0; i < values.length; i++) {
 		_linkToEnd(this,values[i]);
 	}
 	return this.length;
 };
 
 LinkedList.prototype.pushTop = function(value) {
+	var t;
 	if($tw.utils.isArray(value)) {
-		for (var t=0; t<value.length; t++) {
+		for (t=0; t<value.length; t++) {
 			_assertString(value[t]);
 		}
-		for(var t=0; t<value.length; t++) {
+		for(t=0; t<value.length; t++) {
 			_removeOne(this,value[t]);
 		}
-		for(var t=0; t<value.length; t++) {
+		for(t=0; t<value.length; t++) {
 			_linkToEnd(this,value[t]);
 		}
 	} else {
@@ -74,11 +76,11 @@ LinkedList.prototype.pushTop = function(value) {
 
 LinkedList.prototype.each = function(callback) {
 	var visits = Object.create(null),
-		value = this.first;
-	while(value !== undefined) {
+		value = this.next.get(null);
+	while(value !== null) {
 		callback(value);
-		var next = this.next[value];
-		if(typeof next === "object") {
+		var next = this.next.get(value);
+		if(Array.isArray(next)) {
 			var i = visits[value] || 0;
 			visits[value] = i+1;
 			value = next[i];
@@ -105,91 +107,79 @@ LinkedList.prototype.makeTiddlerIterator = function(wiki) {
 };
 
 function _removeOne(list,value) {
-	var prevEntry = list.prev[value],
-		nextEntry = list.next[value],
+	var nextEntry = list.next.get(value);
+	if(nextEntry === undefined) {
+		return;
+	}
+	var prevEntry = list.prev.get(value),
 		prev = prevEntry,
-		next = nextEntry;
-	if(typeof nextEntry === "object") {
+		next = nextEntry,
+		ref;
+	if(Array.isArray(nextEntry)) {
 		next = nextEntry[0];
 		prev = prevEntry[0];
 	}
 	// Relink preceding element.
-	if(list.first === value) {
-		list.first = next
-	} else if(prev !== undefined) {
-		if(typeof list.next[prev] === "object") {
-			if(next === undefined) {
-				// Must have been last, and 'i' would be last element.
-				list.next[prev].pop();
-			} else {
-				var i = list.next[prev].indexOf(value);
-				list.next[prev][i] = next;
-			}
-		} else {
-			list.next[prev] = next;
-		}
+	ref = list.next.get(prev);
+	if(Array.isArray(ref)) {
+		var i = ref.indexOf(value);
+		ref[i] = next;
 	} else {
-		return;
+		list.next.set(prev,next);
 	}
+
 	// Now relink following element
-	// Check "next !== undefined" rather than "list.last === value" because
-	// we need to know if the FIRST value is the last in the list, not the last.
-	if(next !== undefined) {
-		if(typeof list.prev[next] === "object") {
-			if(prev === undefined) {
-				// Must have been first, and 'i' would be 0.
-				list.prev[next].shift();
-			} else {
-				var i = list.prev[next].indexOf(value);
-				list.prev[next][i] = prev;
-			}
-		} else {
-			list.prev[next] = prev;
-		}
+	ref = list.prev.get(next);
+	if(Array.isArray(ref)) {
+		var i = ref.indexOf(value);
+		ref[i] = prev;
 	} else {
-		list.last = prev;
+		list.prev.set(next,prev);
 	}
+
 	// Delink actual value. If it uses arrays, just remove first entries.
-	if(typeof nextEntry === "object") {
+	if(Array.isArray(nextEntry) && nextEntry.length > 1) {
 		nextEntry.shift();
 		prevEntry.shift();
 	} else {
-		list.next[value] = undefined;
-		list.prev[value] = undefined;
+		list.next.set(value,undefined);
+		list.prev.set(value,undefined);
 	}
 	list.length -= 1;
 };
 
 // Sticks the given node onto the end of the list.
 function _linkToEnd(list,value) {
-	if(list.first === undefined) {
-		list.first = value;
+	var old = list.next.get(value);
+	var last = list.prev.get(null);
+	// Does it already exists?
+	if(old !== undefined) {
+		if(!Array.isArray(old)) {
+			old = [old];
+			list.next.set(value,old);
+			list.prev.set(value,[list.prev.get(value)]);
+		}
+		old.push(null);
+		list.prev.get(value).push(last);
 	} else {
-		// Does it already exists?
-		if(list.first === value || list.prev[value] !== undefined) {
-			if(typeof list.next[value] === "string") {
-				list.next[value] = [list.next[value]];
-				list.prev[value] = [list.prev[value]];
-			} else if(typeof list.next[value] === "undefined") {
-				// list.next[value] must be undefined.
-				// Special case. List already has 1 value. It's at the end.
-				list.next[value] = [];
-				list.prev[value] = [list.prev[value]];
-			}
-			list.prev[value].push(list.last);
-			// We do NOT append a new value onto "next" list. Iteration will
-			// figure out it must point to End-of-List on its own.
-		} else {
-			list.prev[value] = list.last;
-		}
-		// Make the old last point to this new one.
-		if(typeof list.next[list.last] === "object") {
-			list.next[list.last].push(value);
-		} else {
-			list.next[list.last] = value;
-		}
+		list.next.set(value,null);
+		list.prev.set(value,last);
+	}
+	// Make the old last point to this new one.
+	if(value !== last) {
+		var array = list.next.get(last);
+		if(Array.isArray(array)) {
+			array[array.length-1] = value;
+		} else {
+			list.next.set(last,value);
+		}
+		list.prev.set(null,value);
+	} else {
+		// Edge case, the pushed value was already the last value.
+		// The second-to-last nextPtr for that value must point to itself now.
+		var array = list.next.get(last);
+		array[array.length-2] = value;
 	}
-	list.last = value;
 	list.length += 1;
 };
 
@@ -199,6 +189,20 @@ function _assertString(value) {
 	}
 };
 
+var LLMap = function() {
+	this.map = Object.create(null);
+};
+
+// Just a wrapper so our object map can also accept null.
+LLMap.prototype = {
+	set: function(key,val) {
+		(key === null) ? (this.null = val) : (this.map[key] = val);
+	},
+	get: function(key) {
+		return (key === null) ? this.null : this.map[key];
+	}
+};
+
 exports.LinkedList = LinkedList;
 
 })();

core/modules/utils/parsetree.js

@@ -65,10 +65,8 @@ exports.addClassToParseTreeNode = function(node,classString) {
 		// If the class attribute does not exist, we must create it first.
 		attribute = {name: "class", type: "string", value: ""};
 		node.attributes["class"] = attribute;
-		if(node.orderedAttributes) {
-			// If there are orderedAttributes, we've got to add them there too.
-			node.orderedAttributes.push(attribute);
-		}
+		node.orderedAttributes = node.orderedAttributes || [];
+		node.orderedAttributes.push(attribute);
 	}
 	if(attribute.type === "string") {
 		if(attribute.value !== "") {
@@ -88,10 +86,8 @@ exports.addStyleToParseTreeNode = function(node,name,value) {
 	if(!attribute) {
 		attribute = {name: "style", type: "string", value: ""};
 		node.attributes.style = attribute;
-		if(node.orderedAttributes) {
-			// If there are orderedAttributes, we've got to add them there too.
-			node.orderedAttributes.push(attribute);
-		}
+		node.orderedAttributes = node.orderedAttributes || [];
+		node.orderedAttributes.push(attribute);
 	}
 	if(attribute.type === "string") {
 		attribute.value += name + ":" + value + ";";

core/modules/utils/utils.js

@@ -354,6 +354,9 @@ exports.formatDateString = function(date,template) {
 	var result = "",
 		t = template,
 		matches = [
+			[/^TIMESTAMP/, function() {
+				return date.getTime();
+			}],
 			[/^0hh12/, function() {
 				return $tw.utils.pad($tw.utils.getHours12(date));
 			}],

core/modules/widgets/action-popup.js

@@ -14,6 +14,8 @@ Action widget to trigger a popup.
 
 var Widget = require("$:/core/modules/widgets/widget.js").widget;
 
+var Popup = require("$:/core/modules/utils/dom/popup.js");
+
 var ActionPopupWidget = function(parseTreeNode,options) {
 	this.initialise(parseTreeNode,options);
 };
@@ -57,20 +59,20 @@ Invoke the action associated with this widget
 */
 ActionPopupWidget.prototype.invokeAction = function(triggeringWidget,event) {
 	// Trigger the popup
-	var popupLocationRegExp = /^\((-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+)\)$/,
-		match = popupLocationRegExp.exec(this.actionCoords || "");
-	if(match) {
+	var coordinates = Popup.parseCoordinates(this.actionCoords || "");
+	if(coordinates) {
 		$tw.popup.triggerPopup({
 			domNode: null,
 			domNodeRect: {
-				left: parseFloat(match[1]),
-				top: parseFloat(match[2]),
-				width: parseFloat(match[3]),
-				height: parseFloat(match[4])
+				left: coordinates.left,
+				top: coordinates.top,
+				width: coordinates.width,
+				height: coordinates.height
 			},
 			title: this.actionState,
 			wiki: this.wiki,
-			floating: this.floating
+			floating: this.floating,
+			absolute: coordinates.absolute
 		});
 	} else {
 		$tw.popup.cancel(0);

core/modules/widgets/button.js

@@ -14,6 +14,8 @@ Button widget
 
 var Widget = require("$:/core/modules/widgets/widget.js").widget;
 
+var Popup = require("$:/core/modules/utils/dom/popup.js");
+
 var ButtonWidget = function(parseTreeNode,options) {
 	this.initialise(parseTreeNode,options);
 };
@@ -147,7 +149,7 @@ ButtonWidget.prototype.isSelected = function() {
 
 ButtonWidget.prototype.isPoppedUp = function() {
 	var tiddler = this.popupTitle ? this.wiki.getTiddler(this.popupTitle) : this.wiki.getTiddler(this.popup);
-	var result = tiddler && tiddler.fields.text ? $tw.popup.readPopupState(tiddler.fields.text) : false;
+	var result = tiddler && tiddler.fields.text ? Popup.readPopupState(tiddler.fields.text) : false;
 	return result;
 };
 
@@ -173,6 +175,7 @@ ButtonWidget.prototype.triggerPopup = function(event) {
 	if(this.popupTitle) {
 		$tw.popup.triggerPopup({
 			domNode: this.domNodes[0],
+			absolute: (this.popupAbsCoords === "yes"),
 			title: this.popupTitle,
 			wiki: this.wiki,
 			noStateReference: true
@@ -180,6 +183,7 @@ ButtonWidget.prototype.triggerPopup = function(event) {
 	} else {
 		$tw.popup.triggerPopup({
 			domNode: this.domNodes[0],
+			absolute: (this.popupAbsCoords === "yes"),
 			title: this.popup,
 			wiki: this.wiki
 		});
@@ -223,6 +227,7 @@ ButtonWidget.prototype.execute = function() {
 	this.setField = this.getAttribute("setField");
 	this.setIndex = this.getAttribute("setIndex");
 	this.popupTitle = this.getAttribute("popupTitle");
+	this.popupAbsCoords = this.getAttribute("popupAbsCoords", "no");
 	this.tabIndex = this.getAttribute("tabindex");
 	this.isDisabled = this.getAttribute("disabled","no");
 	// Make child widgets
@@ -252,7 +257,7 @@ Selectively refreshes the widget if needed. Returns true if the widget or any of
 */
 ButtonWidget.prototype.refresh = function(changedTiddlers) {
 	var changedAttributes = this.computeAttributes();
-	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.setTitle || changedAttributes.setField || changedAttributes.setIndex || changedAttributes.popupTitle || changedAttributes.disabled || changedAttributes["default"]) {
+	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"]) {

core/modules/widgets/keyboard.js

@@ -53,6 +53,10 @@ KeyboardWidget.prototype.render = function(parent,nextSibling) {
 };
 
 KeyboardWidget.prototype.handleChangeEvent = function(event) {
+	if ($tw.keyboardManager.handleKeydownEvent(event, {onlyPriority: true})) {
+		return true;
+	}
+
 	var keyInfo = $tw.keyboardManager.getMatchingKeyDescriptor(event,this.keyInfoArray);
 	if(keyInfo) {
 		var handled = this.invokeActions(this,event);

core/modules/widgets/reveal.js

@@ -14,6 +14,8 @@ Reveal widget
 
 var Widget = require("$:/core/modules/widgets/widget.js").widget;
 
+var Popup = require("$:/core/modules/utils/dom/popup.js");
+
 var RevealWidget = function(parseTreeNode,options) {
 	this.initialise(parseTreeNode,options);
 };
@@ -94,6 +96,13 @@ RevealWidget.prototype.positionPopup = function(domNode) {
 		left = Math.max(0,left);
 		top = Math.max(0,top);
 	}
+	if (this.popup.absolute) {
+		// Traverse the offsetParent chain and correct the offset to make it relative to the parent node.
+		for (var offsetParentDomNode = domNode.offsetParent; offsetParentDomNode; offsetParentDomNode = offsetParentDomNode.offsetParent) {
+			left -= offsetParentDomNode.offsetLeft;
+			top -= offsetParentDomNode.offsetTop;
+		}
+	}
 	domNode.style.left = left + "px";
 	domNode.style.top = top + "px";
 };
@@ -183,19 +192,11 @@ RevealWidget.prototype.compareStateText = function(state) {
 };
 
 RevealWidget.prototype.readPopupState = function(state) {
-	var popupLocationRegExp = /^\((-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+)\)$/,
-		match = popupLocationRegExp.exec(state);
+	this.popup = Popup.parseCoordinates(state);
 	// Check if the state matches the location regexp
-	if(match) {
+	if(this.popup) {
 		// If so, we're open
 		this.isOpen = true;
-		// Get the location
-		this.popup = {
-			left: parseFloat(match[1]),
-			top: parseFloat(match[2]),
-			width: parseFloat(match[3]),
-			height: parseFloat(match[4])
-		};
 	} else {
 		// If not, we're closed
 		this.isOpen = false;

core/modules/widgets/select.js

@@ -42,6 +42,9 @@ SelectWidget.prototype.render = function(parent,nextSibling) {
 	this.execute();
 	this.renderChildren(parent,nextSibling);
 	this.setSelectValue();
+	if(this.selectFocus == "yes") {
+		this.getSelectDomNode().focus();
+	}
 	$tw.utils.addEventListeners(this.getSelectDomNode(),[
 		{name: "change", handlerObject: this, handlerMethod: "handleChangeEvent"}
 	]);
@@ -143,6 +146,7 @@ SelectWidget.prototype.execute = function() {
 	this.selectMultiple = this.getAttribute("multiple", false);
 	this.selectSize = this.getAttribute("size");
 	this.selectTooltip = this.getAttribute("tooltip");
+	this.selectFocus = this.getAttribute("focus");
 	// Make the child widgets
 	var selectNode = {
 		type: "element",
@@ -175,6 +179,11 @@ SelectWidget.prototype.refresh = function(changedTiddlers) {
 		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); 
+		}
+		
 		var childrenRefreshed = this.refreshChildren(changedTiddlers);
 		if(changedTiddlers[this.selectTitle] || childrenRefreshed) {
 			this.setSelectValue();

core/modules/widgets/transclude.js

@@ -70,11 +70,9 @@ TranscludeWidget.prototype.execute = function() {
 	// Check for recursion
 	if(parser) {
 		if(this.parentWidget && this.parentWidget.hasVariable("transclusion",recursionMarker)) {
-			parseTreeNodes = [{type: "element", tag: "span", attributes: {
-				"class": {type: "string", value: "tc-error"}
-			}, children: [
-				{type: "text", text: $tw.language.getString("Error/RecursiveTransclusion")}
-			]}];
+			parseTreeNodes = [{type: "error", attributes: {
+				"$message": {type: "string", value: $tw.language.getString("Error/RecursiveTransclusion")}
+			}}];
 		}
 	}
 	// Construct the child widgets

core/palettes/Blanca.tid

@@ -34,6 +34,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #0000aa
 external-link-foreground: #0000ee
 foreground: #333333
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-background: #ecf2ff
 message-border: #cfd6e6
 message-foreground: #547599

core/palettes/Blue.tid

@@ -34,6 +34,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #0000aa
 external-link-foreground: #0000ee
 foreground: #333353
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-background: #ecf2ff
 message-border: #cfd6e6
 message-foreground: #547599

core/palettes/BrightMute.tid

@@ -34,6 +34,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #0000aa
 external-link-foreground: #0000ee
 foreground: #333333
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-background: #ecf2ff
 message-border: #cfd6e6
 message-foreground: #547599

core/palettes/ContrastDark.tid

@@ -34,6 +34,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #00a
 external-link-foreground: #00e
 foreground: #000
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-background: <<colour foreground>>
 message-border: <<colour background>>
 message-foreground: <<colour background>>

core/palettes/ContrastLight.tid

@@ -34,6 +34,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #00a
 external-link-foreground: #00e
 foreground: #fff
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-background: <<colour foreground>>
 message-border: <<colour background>>
 message-foreground: <<colour background>>

core/palettes/CupertinoDark.tid

@@ -32,6 +32,8 @@ external-link-foreground-hover:
 external-link-foreground-visited: #BF5AF2
 external-link-foreground: #32D74B
 foreground: #FFFFFF
+highlight-background: #ffff78
+highlight-foreground: #000000
 menubar-background: #464646
 menubar-foreground: #ffffff
 message-background: <<colour background>>

core/palettes/DarkPhotos.tid

@@ -36,6 +36,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #0000aa
 external-link-foreground: #0000ee
 foreground: #333333
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-background: #ecf2ff
 message-border: #cfd6e6
 message-foreground: #547599

core/palettes/DesertSand.tid

@@ -40,6 +40,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #313163
 external-link-foreground: #555592
 foreground: #2D2A23
+highlight-background: #ffff00
+highlight-foreground: #000000
 menubar-background: #CDC2A6
 menubar-foreground: #5A5446
 message-background: #ECE5CF

core/palettes/GruvBoxDark.tid

@@ -41,6 +41,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #d3869b
 external-link-foreground: #8ec07c
 foreground: #fbf1c7
+highlight-background: #ffff79
+highlight-foreground: #000000
 menubar-background: #504945
 menubar-foreground: <<colour foreground>>
 message-background: #83a598

core/palettes/Nord.tid

@@ -41,6 +41,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #5E81AC
 external-link-foreground: #8FBCBB
 foreground: #d8dee9
+highlight-background: #ffff78
+highlight-foreground: #000000
 menubar-background: #2E3440
 menubar-foreground: #d8dee9
 message-background: #2E3440

core/palettes/Rocker.tid

@@ -34,6 +34,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #0000aa
 external-link-foreground: #0000ee
 foreground: #333333
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-background: #ecf2ff
 message-border: #cfd6e6
 message-foreground: #547599

core/palettes/SolarFlare.tid

@@ -131,6 +131,8 @@ external-link-background-hover: inherit
 external-link-background-visited: inherit
 external-link-background: inherit
 external-link-foreground-hover: inherit
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-border: #cfd6e6
 modal-border: #999999
 select-tag-background:

core/palettes/SolarizedDark.tid

@@ -35,6 +35,8 @@ external-link-foreground: #268bd2
 external-link-foreground-hover:
 external-link-foreground-visited: #268bd2
 foreground: #839496
+highlight-background: #ffff78
+highlight-foreground: #000000
 message-background: #002b36
 message-border: #586e75
 message-foreground: #839496

core/palettes/SolarizedLight.tid

@@ -35,6 +35,8 @@ external-link-foreground: #268bd2
 external-link-foreground-hover: inherit
 external-link-foreground-visited: #268bd2
 foreground: #657b83
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-background: #fdf6e3
 message-border: #93a1a1
 message-foreground: #657b83

core/palettes/SpartanDay.tid

@@ -34,6 +34,8 @@ external-link-foreground-hover:
 external-link-foreground-visited: 
 external-link-foreground: 
 foreground: rgba(0, 0, 0, 0.87)
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-background: <<colour background>>
 message-border: <<colour very-muted-foreground>>
 message-foreground: rgba(0, 0, 0, 0.54)

core/palettes/SpartanNight.tid

@@ -34,6 +34,8 @@ external-link-foreground-hover:
 external-link-foreground-visited: #7c318c
 external-link-foreground: #9e3eb3
 foreground: rgba(255, 255, 255, 0.7)
+highlight-background: #ffff78
+highlight-foreground: #000000
 message-background: <<colour background>>
 message-border: <<colour very-muted-foreground>>
 message-foreground: rgba(255, 255, 255, 0.54)

core/palettes/Twilight.tid

@@ -43,6 +43,8 @@ external-link-foreground: rgb(179, 179, 255)
 external-link-foreground-hover: inherit
 external-link-foreground-visited: rgb(153, 153, 255)
 foreground: rgb(179, 179, 179)
+highlight-background: #ffff78
+highlight-foreground: #000000
 message-background: <<colour tag-foreground>>
 message-border: #96ccff
 message-foreground: <<colour tag-background>>

core/palettes/Vanilla.tid

@@ -42,6 +42,8 @@ external-link-foreground-hover: inherit
 external-link-foreground-visited: #0000aa
 external-link-foreground: #0000ee
 foreground: #333333
+highlight-background: #ffff00
+highlight-foreground: #000000
 message-background: #ecf2ff
 message-border: #cfd6e6
 message-foreground: #547599

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

@@ -4,5 +4,7 @@ title: $:/core/save/all-external-js
 \define saveTiddlerFilter()
 [is[tiddler]] -[prefix[$:/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]] $(publishFilter)$
 \end
-\define coreURL() %24%3A%2Fcore%2Ftemplates%2Ftiddlywiki5.js
-{{$:/core/templates/tiddlywiki5-external-js.html}}
+\define defaultCoreURL() %24%3A%2Fcore%2Ftemplates%2Ftiddlywiki5.js
+<$let coreURL={{{ [[coreURL]is[variable]then<coreURL>else<defaultCoreURL>] }}}>
+	{{$:/core/templates/tiddlywiki5-external-js.html}}
+</$let>

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

@@ -4,5 +4,7 @@ title: $:/core/save/offline-external-js
 \define saveTiddlerFilter()
 [is[tiddler]] -[prefix[$:/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]] $(publishFilter)$
 \end
-\define coreURL() tiddlywikicore-$(version)$.js
-{{$:/core/templates/tiddlywiki5-external-js.html}}
+\define defaultCoreURL() tiddlywikicore-$(version)$.js
+<$let coreURL={{{ [[coreURL]is[variable]then<coreURL>else<defaultCoreURL>] }}}>
+	{{$:/core/templates/tiddlywiki5-external-js.html}}
+</$let>

core/templates/single.tiddler.window.tid

@@ -18,7 +18,7 @@ tc-page-container tc-page-view-$(storyviewTitle)$ tc-language-$(languageTitle)$
 
 <$navigator story="$:/StoryList" history="$:/HistoryList">
 
-<$transclude mode="block"/>
+<$transclude tiddler="$:/core/ui/ViewTemplate/body" mode="block"/>
 
 </$navigator>
 

core/ui/Actions/new-image.tid

@@ -2,11 +2,5 @@ title: $:/core/ui/Actions/new-image
 tags: $:/tags/Actions
 description: create a new image tiddler
 
-\define get-type()
-image/$(imageType)$
-\end
-\define get-tags() $(textFieldTags)$ $(tagsFieldTags)$
 \whitespace trim
-<$vars imageType={{$:/config/NewImageType}} textFieldTags={{$:/config/NewJournal/Tags}} tagsFieldTags={{$:/config/NewJournal/Tags!!tags}}>
-<$action-sendmessage $message="tm-new-tiddler" type=<<get-type>> tags=<<get-tags>>/>
-</$vars>
+<$action-sendmessage $message="tm-new-tiddler" type={{{ [{$:/config/NewImageType}addprefix[image/]] }}}/>

core/ui/AdvancedSearch/FilterButtons/dropdown.tid

@@ -14,8 +14,8 @@ tags: $:/tags/AdvancedSearch/FilterButton
 <$linkcatcher actions="<$action-setfield $tiddler='$:/temp/advancedsearch' text=<<navigateTo>>/><$action-setfield $tiddler='$:/temp/advancedsearch/input' text=<<navigateTo>>/><$action-setfield $tiddler='$:/temp/advancedsearch/refresh' text='yes'/><$action-sendmessage $message='tm-focus-selector' $param='.tc-advanced-search input' />">
 <div class="tc-block-dropdown-wrapper">
 <div class="tc-block-dropdown tc-edit-type-dropdown">
-<$list filter="[all[shadows+tiddlers]tag[$:/tags/Filter]]">
-<$link to={{!!filter}}><$transclude field="description"/></$link>
+<$list filter="[all[shadows+tiddlers]tag[$:/tags/Filter]!is[draft]]">
+<$link to={{!!filter}}><$let tv-wikilinks="no"><$transclude field="description"/></$let></$link>
 </$list>
 </div>
 </div>

core/ui/ControlPanel/Basics.tid

@@ -20,15 +20,16 @@ caption: {{$:/language/ControlPanel/Basics/Caption}}
 \end
 \whitespace trim
 
+|tc-max-width tc-edit-max-width|k
 |<<lingo Version/Prompt>> |''<<version>>'' |
 |<$link to="$:/SiteTitle"><<lingo Title/Prompt>></$link> |<$edit-text tiddler="$:/SiteTitle" default="" tag="input"/> |
 |<$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 tag="textarea" tiddler="$:/DefaultTiddlers" class="tc-edit-texteditor"/><br>//<<lingo DefaultTiddlers/BottomHint>>// |
+|<$link to="$:/DefaultTiddlers"><<lingo DefaultTiddlers/Prompt>></$link> |<<lingo DefaultTiddlers/TopHint>><br> <$edit class="tc-edit-texteditor" tiddler="$:/DefaultTiddlers"/><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="$:/config/NewJournal/Text" tag="textarea" class="tc-edit-texteditor" default=""/> |
+|<$link to="$:/config/NewJournal/Text"><<lingo NewJournal/Text/Prompt>></$link> |<$edit tiddler="$:/config/NewJournal/Text" class="tc-edit-texteditor" default=""/> |
 |<$link to="$:/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/Basics/retain-story-ordering-button.tid

@@ -0,0 +1,3 @@
+title: $:/snippets/retain-story-ordering-button
+
+<$button set="$:/DefaultTiddlers" setTo={{$:/config/ControlPanel/Basics/DefaultTiddlers/RetainStory}} ><<currentTiddler>></$button>

core/ui/EditTemplate.tid

@@ -1,7 +1,12 @@
 title: $:/core/ui/EditTemplate
 
-\define delete-edittemplate-state-tiddlers() <$action-deletetiddler $filter="[<newFieldNameTiddler>] [prefix<newFieldValueTiddlerPrefix>] [<newFieldNameInputTiddler>] [<newFieldNameSelectionTiddler>] [<newTagNameTiddler>] [<newTagNameInputTiddler>] [<newTagNameSelectionTiddler>] [<typeInputTiddler>] [<typeSelectionTiddler>]"/>
+\define delete-edittemplate-state-tiddlers()
+<$set name="safeNewFieldValueTiddlerPrefix" value=<<newFieldValueTiddlerPrefix>> emptyValue=<<qualify "$:/temp/NewFieldValue">> >
+	<$action-deletetiddler $filter="[<newFieldNameTiddler>] [prefix[$:/temp/NewFieldValue]prefix<safeNewFieldValueTiddlerPrefix>] [<newFieldNameInputTiddler>] [<newFieldNameSelectionTiddler>] [<newTagNameTiddler>] [<newTagNameInputTiddler>] [<newTagNameSelectionTiddler>] [<typeInputTiddler>] [<typeSelectionTiddler>]"/>
+</$set>
+\end
 
+<!-- Beware this is duplicated from fields.tid. For details see bug #7054 -->
 \define get-field-value-tiddler-filter() [subfilter<get-field-editor-filter>sha256[16]addprefix[/]addprefix<newFieldValueTiddlerPrefix>]
 \define get-field-editor-filter() [<newFieldNameTiddler>get[text]else[]] :cascade[all[shadows+tiddlers]tag[$:/tags/FieldEditorFilter]!is[draft]get[text]] :and[!is[blank]else{$:/core/ui/EditTemplate/fieldEditor/default}]
 
@@ -23,7 +28,7 @@ title: $:/core/ui/EditTemplate
 <div
 	data-tiddler-title=<<currentTiddler>>
 	data-tags={{!!tags}}
-	class={{{ tc-tiddler-frame tc-tiddler-edit-frame [<currentTiddler>is[tiddler]then[tc-tiddler-exists]] [<currentTiddler>is[missing]!is[shadow]then[tc-tiddler-missing]] [<currentTiddler>is[shadow]then[tc-tiddler-exists tc-tiddler-shadow]] [<currentTiddler>is[system]then[tc-tiddler-system]] [{!!class}] [<currentTiddler>tags[]encodeuricomponent[]addprefix[tc-tagged-]] +[join[ ]] }}}
+	class={{{ [all[shadows+tiddlers]tag[$:/tags/ClassFilters/TiddlerTemplate]!is[draft]] :map:flat[subfilter{!!text}] tc-tiddler-frame tc-tiddler-edit-frame [<currentTiddler>is[tiddler]then[tc-tiddler-exists]] [<currentTiddler>is[missing]!is[shadow]then[tc-tiddler-missing]] [<currentTiddler>is[shadow]then[tc-tiddler-exists tc-tiddler-shadow]] [<currentTiddler>is[system]then[tc-tiddler-system]] [{!!class}] [<currentTiddler>tags[]encodeuricomponent[]addprefix[tc-tagged-]] +[join[ ]] }}}
 	role="region"
 	aria-label={{$:/language/EditTemplate/Caption}}>
 <$fieldmangler>

core/ui/EditTemplate/body/default.tid

@@ -19,7 +19,7 @@ $:/config/EditorToolbarButtons/Visibility/$(currentTiddler)$
 
 <$transclude tiddler="$:/core/ui/EditTemplate/body/editor" mode="inline"/>
 
-<div class="tc-tiddler-preview-preview">
+<div class="tc-tiddler-preview-preview" data-tiddler-title={{!!draft.title}} data-tags={{!!tags}}>
 
 <$transclude tiddler={{$:/state/editpreviewtype}} mode="inline">
 

core/ui/EditTemplate/fields.tid

@@ -10,6 +10,10 @@ $:/config/EditTemplateFields/Visibility/$(currentField)$
 [[hide]] -[title{$(config-title)$}]
 \end
 
+<!-- Beware this is duplicated from EditTemplate.tid. For details see bug #7054 -->
+\define get-field-value-tiddler-filter() [subfilter<get-field-editor-filter>sha256[16]addprefix[/]addprefix<newFieldValueTiddlerPrefix>]
+\define get-field-editor-filter() [<newFieldNameTiddler>get[text]else[]] :cascade[all[shadows+tiddlers]tag[$:/tags/FieldEditorFilter]!is[draft]get[text]] :and[!is[blank]else{$:/core/ui/EditTemplate/fieldEditor/default}]
+
 \define current-tiddler-new-field-selector()
 [data-tiddler-title="$(currentTiddlerCSSescaped)$"] .tc-edit-field-add-name-wrapper input
 \end
@@ -17,7 +21,9 @@ $:/config/EditTemplateFields/Visibility/$(currentField)$
 \define new-field-actions()
 \whitespace trim
 <$action-sendmessage $message="tm-add-field" $name={{{ [<newFieldNameTiddler>get[text]] }}} $value={{{ [<newFieldNameTiddler>get[text]] :map[subfilter<get-field-value-tiddler-filter>get[text]] }}}/>
-<$action-deletetiddler $filter="[<newFieldNameTiddler>] [prefix<newFieldValueTiddlerPrefix>] [<storeTitle>] [<searchListState>]"/>
+<$set name="safeNewFieldValueTiddlerPrefix" value=<<newFieldValueTiddlerPrefix>> emptyValue=<<qualify "$:/temp/NewFieldValue">> >
+	<$action-deletetiddler $filter="[<newFieldNameTiddler>] [prefix[$:/temp/NewFieldValue]prefix<safeNewFieldValueTiddlerPrefix>] [<storeTitle>] [<searchListState>]"/>
+</$set>
 <$action-sendmessage $message="tm-focus-selector" $param=<<current-tiddler-new-field-selector>>/>
 \end
 
@@ -52,7 +58,9 @@ $:/config/EditTemplateFields/Visibility/$(currentField)$
 <$action-sendmessage $message="tm-add-field"
 $name=<<name>>
 $value={{{ [subfilter<get-field-value-tiddler-filter>get[text]] }}}/>
-<$action-deletetiddler $filter="[<newFieldNameTiddler>] [prefix<newFieldValueTiddlerPrefix>] [<storeTitle>] [<searchListState>]"/>
+<$set name="safeNewFieldValueTiddlerPrefix" value=<<newFieldValueTiddlerPrefix>> emptyValue=<<qualify "$:/temp/NewFieldValue">> >
+	<$action-deletetiddler $filter="[<newFieldNameTiddler>] [prefix[$:/temp/NewFieldValue]prefix<safeNewFieldValueTiddlerPrefix>] [<storeTitle>] [<searchListState>]"/>
+</$set>
 <<lingo Fields/Add/Button>>
 </$button>
 </$reveal>
@@ -65,6 +73,7 @@ $value={{{ [subfilter<get-field-value-tiddler-filter>get[text]] }}}/>
 \end
 \whitespace trim
 
+<$set name="newFieldValueTiddlerPrefix" value=<<newFieldValueTiddlerPrefix>> emptyValue=<<qualify "$:/temp/NewFieldValue">> >
 <div class="tc-edit-fields">
 <table class={{{ [all[current]fields[]] :filter[lookup[$:/config/EditTemplateFields/Visibility/]!match[hide]] +[count[]!match[0]] +[then[tc-edit-fields]] ~[[tc-edit-fields tc-edit-fields-small]] }}}>
 <tbody>
@@ -148,3 +157,4 @@ $value={{{ [subfilter<get-field-value-tiddler-filter>get[text]] }}}/>
 </$vars>
 </div>
 </$fieldmangler>
+</$set>

core/ui/ImportListing.tid

@@ -117,15 +117,15 @@ title: $:/core/ui/ImportListing
 		</div>
 	</td>
 </$reveal>
-<tr>
+<$reveal type="match" text="yes" state=<<previewPopupState>> tag="tr">
 <td colspan="3">
-<$reveal type="match" text="yes" state=<<previewPopupState>> tag="div">
 <$list filter="[{$:/state/importpreviewtype}has[text]]" variable="listItem" emptyMessage={{$:/core/ui/ImportPreviews/Text}}>
-<$transclude tiddler={{$:/state/importpreviewtype}}/>
+	<div>
+		<$transclude tiddler={{$:/state/importpreviewtype}}/>
+	</div>
 </$list>
-</$reveal>
 </td>
-</tr>
+</$reveal>
 </$list>
 </tbody>
 </table>

core/ui/KeyboardShortcuts/advanced-search.tid

@@ -4,6 +4,6 @@ key: ((advanced-search))
 
 \whitespace trim
 <$navigator story="$:/StoryList" history="$:/HistoryList">
-<$action-navigate $to="$:/AdvancedSearch"/>
+<$action-navigate $to="$:/AdvancedSearch" $scroll="yes"/>
 <$action-sendmessage $message="tm-focus-selector" $param="""[data-tiddler-title="$:/AdvancedSearch"] .tc-search input""" preventScroll="true"/>
 </$navigator>

core/ui/PageControls/layout.tid

@@ -0,0 +1,15 @@
+title: $:/core/ui/Buttons/layout
+tags: $:/tags/PageControls
+caption: {{$:/core/images/layout-button}} {{$:/language/Buttons/LayoutSwitcher/Caption}}
+description: {{$:/language/LayoutSwitcher/Description}}
+
+\whitespace trim
+<$button tooltip={{$:/language/Buttons/LayoutSwitcher/Hint}} aria-label={{$:/language/Buttons/LayoutSwitcher/Caption}} class=<<tv-config-toolbar-class>>>
+<$action-sendmessage $message="tm-show-switcher" switch="layout"/>
+<$list filter="[<tv-config-toolbar-icons>match[yes]]">
+{{$:/core/images/layout-button}}
+</$list>
+<$list filter="[<tv-config-toolbar-text>match[yes]]">
+<span class="tc-btn-text"><$text text={{$:/language/Buttons/LayoutSwitcher/Caption}}/></span>
+</$list>
+</$button>

core/ui/PageTemplate.tid

@@ -3,9 +3,6 @@ name: {{$:/language/PageTemplate/Name}}
 description: {{$:/language/PageTemplate/Description}}
 
 \whitespace trim
-\define containerClasses()
-tc-page-container tc-page-view-$(storyviewTitle)$ tc-language-$(languageTitle)$
-\end
 \import [[$:/core/ui/PageMacros]] [all[shadows+tiddlers]tag[$:/tags/Macro]!has[draft.of]]
 
 <$vars
@@ -17,7 +14,7 @@ tc-page-container tc-page-view-$(storyviewTitle)$ tc-language-$(languageTitle)$
 	storyviewTitle={{$:/view}}
 	languageTitle={{{ [{$:/language}get[name]] }}}>
 
-<div class=<<containerClasses>>>
+<div class={{{ [all[shadows+tiddlers]tag[$:/tags/ClassFilters/PageTemplate]!is[draft]] :map:flat[subfilter{!!text}] tc-page-container [[tc-page-view-]addsuffix<storyviewTitle>] [[tc-language-]addsuffix<languageTitle>] :and[unique[]join[ ]] }}} >
 
 <$navigator story="$:/StoryList" history="$:/HistoryList" openLinkFromInsideRiver={{$:/config/Navigation/openLinkFromInsideRiver}} openLinkFromOutsideRiver={{$:/config/Navigation/openLinkFromOutsideRiver}} relinkOnRename={{$:/config/RelinkOnRename}}>
 

core/ui/SideBar/More.tid

@@ -3,6 +3,6 @@ tags: $:/tags/SideBar
 caption: {{$:/language/SideBar/More/Caption}}
 
 \whitespace trim
-<div class="tc-more-sidebar">
-<$macrocall $name="tabs" tabsList="[all[shadows+tiddlers]tag[$:/tags/MoreSideBar]!has[draft.of]]" default={{$:/config/DefaultMoreSidebarTab}} state="$:/state/tab/moresidebar" class="tc-vertical tc-sidebar-tabs-more" explicitState="$:/state/tab/moresidebar-1850697562"/>
+<div class={{{ [{$:/config/ui/SideBar/More/horizontal}match[yes]then[tc-sidebar-tabs]else[tc-more-sidebar]] }}}>
+<$macrocall $name="tabs" tabsList="[all[shadows+tiddlers]tag[$:/tags/MoreSideBar]!has[draft.of]]" default={{$:/config/DefaultMoreSidebarTab}} state="$:/state/tab/moresidebar" class={{{ [{$:/config/ui/SideBar/More/horizontal}match[yes]then[tc-sidebar-tabs-more]else[tc-vertical tc-sidebar-tabs-more]] }}} explicitState="$:/state/tab/moresidebar-1850697562"/>
 </div>

core/ui/SwitcherModal.tid

@@ -1,6 +1,7 @@
 title: $:/core/ui/SwitcherModal
 subtitle: <$text text={{{[<switch>lookup[$:/language/Switcher/Subtitle/]]}}}/>
 class: tc-modal-centered
+mask-closable: yes
 
 <$tiddler tiddler={{{[<switch>lookup[$:/config/SwitcherTargets/]]}}}>
 

core/ui/TagManager.tid

@@ -3,89 +3,101 @@ icon: $:/core/images/tag-button
 color: #bbb
 
 \define lingo-base() $:/language/TagManager/
+
 \define iconEditorTab(type)
 \whitespace trim
 <$link to=""><<lingo Icons/None>></$link>
 <$list filter="[all[shadows+tiddlers]is[image]] [all[shadows+tiddlers]tag[$:/tags/Image]] -[type[application/pdf]] +[sort[title]] +[$type$is[system]]">
-<$link to={{!!title}}>
-<$transclude/> <$view field="title"/>
-</$link>
+	<$link to={{!!title}}>
+		<$transclude/> <$view field="title"/>
+	</$link>
 </$list>
 \end
+
 \define iconEditor(title)
 \whitespace trim
 <div class="tc-drop-down-wrapper">
-<$button popupTitle={{{ [[$:/state/popup/icon/]addsuffix<__title__>] }}} class="tc-btn-invisible tc-btn-dropdown">{{$:/core/images/down-arrow}}</$button>
-<$reveal stateTitle={{{ [[$:/state/popup/icon/]addsuffix<__title__>] }}} type="popup" position="belowleft" text="" default="">
-<div class="tc-drop-down">
-<$linkcatcher actions="""<$action-setfield $tiddler=<<__title__>> icon=<<navigateTo>>/>""">
-<<iconEditorTab type:"!">>
-<hr/>
-<<iconEditorTab type:"">>
-</$linkcatcher>
-</div>
-</$reveal>
+	<$button popupTitle={{{ [[$:/state/popup/icon/]addsuffix<__title__>] }}} class="tc-btn-invisible tc-btn-dropdown">
+		{{$:/core/images/down-arrow}}
+	</$button>
+	<$reveal stateTitle={{{ [[$:/state/popup/icon/]addsuffix<__title__>] }}} type="popup" position="belowleft" text="" default="">
+		<div class="tc-drop-down">
+			<$linkcatcher actions="""<$action-setfield $tiddler=<<__title__>> icon=<<navigateTo>>/>""">
+				<<iconEditorTab type:"!">>
+				<hr/>
+				<<iconEditorTab type:"">>
+			</$linkcatcher>
+		</div>
+	</$reveal>
 </div>
 \end
+
 \define toggleButton(state)
 \whitespace trim
 <$reveal stateTitle=<<__state__>> type="match" text="closed" default="closed">
-<$button setTitle=<<__state__>> setTo="open" class="tc-btn-invisible tc-btn-dropdown" selectedClass="tc-selected">
-{{$:/core/images/info-button}}
-</$button>
+	<$button setTitle=<<__state__>> setTo="open" class="tc-btn-invisible tc-btn-dropdown" selectedClass="tc-selected">
+		{{$:/core/images/info-button}}
+	</$button>
 </$reveal>
 <$reveal stateTitle=<<__state__>> type="match" text="open" default="closed">
-<$button setTitle=<<__state__>> setTo="closed" class="tc-btn-invisible tc-btn-dropdown" selectedClass="tc-selected">
-{{$:/core/images/info-button}}
-</$button>
+	<$button setTitle=<<__state__>> setTo="closed" class="tc-btn-invisible tc-btn-dropdown" selectedClass="tc-selected">
+		{{$:/core/images/info-button}}
+	</$button>
 </$reveal>
 \end
+
 \whitespace trim
 <table class="tc-tag-manager-table">
 <tbody>
-<tr>
-<th><<lingo Colour/Heading>></th>
-<th class="tc-tag-manager-tag"><<lingo Tag/Heading>></th>
-<th><<lingo Count/Heading>></th>
-<th><<lingo Icon/Heading>></th>
-<th><<lingo Info/Heading>></th>
-</tr>
-<$list filter="[tags[]!is[system]sort[title]]">
-<tr>
-<td><$edit-text field="color" tag="input" type="color"/></td>
-<td>{{||$:/core/ui/TagTemplate}}</td>
-<td><$count filter="[all[current]tagging[]]"/></td>
-<td>
-<$macrocall $name="iconEditor" title={{!!title}}/>
-</td>
-<td>
-<$macrocall $name="toggleButton" state={{{ [[$:/state/tag-manager/]addsuffix<currentTiddler>] }}} /> 
-</td>
-</tr>
-<tr>
-<td></td>
-<td colspan="4">
-<$reveal stateTitle={{{ [[$:/state/tag-manager/]addsuffix<currentTiddler>] }}} type="match" text="open" default="">
-<table>
-<tbody>
-<tr><td><<lingo Colour/Heading>></td><td><$edit-text field="color" tag="input" type="text" size="9"/></td></tr>
-<tr><td><<lingo Icon/Heading>></td><td><$edit-text field="icon" tag="input" size="45"/></td></tr>
-</tbody>
-</table>
-</$reveal>
-</td>
-</tr>
-</$list>
-<tr>
-<td></td>
-<td style="position:relative;">
-{{$:/core/ui/UntaggedTemplate}}
-</td>
-<td>
-<small class="tc-menu-list-count"><$count filter="[untagged[]!is[system]] -[tags[]]"/></small>
-</td>
-<td></td>
-<td></td>
-</tr>
+	<tr>
+		<th><<lingo Colour/Heading>></th>
+		<th class="tc-tag-manager-tag"><<lingo Tag/Heading>></th>
+		<th><<lingo Count/Heading>></th>
+		<th><<lingo Icon/Heading>></th>
+		<th><<lingo Info/Heading>></th>
+	</tr>
+	<$list filter="[tags[]!is[system]sort[title]]">
+		<tr>
+			<td><$edit-text field="color" tag="input" type="color"/></td>
+			<td>{{||$:/core/ui/TagTemplate}}</td>
+			<td><$count filter="[all[current]tagging[]]"/></td>
+			<td>
+				<$macrocall $name="iconEditor" title={{!!title}}/>
+			</td>
+			<td>
+				<$macrocall $name="toggleButton" state={{{ [[$:/state/tag-manager/]addsuffix<currentTiddler>] }}} />
+			</td>
+		</tr>
+		<tr>
+			<td></td>
+			<td colspan="4">
+				<$reveal stateTitle={{{ [[$:/state/tag-manager/]addsuffix<currentTiddler>] }}} type="match" text="open" default="">
+					<table>
+						<tbody>
+							<tr>
+								<td><<lingo Colour/Heading>></td>
+								<td><$edit-text field="color" tag="input" type="text" size="9"/></td>
+							</tr>
+							<tr>
+								<td><<lingo Icon/Heading>></td>
+								<td><$edit-text field="icon" tag="input" size="45"/></td>
+							</tr>
+						</tbody>
+					</table>
+				</$reveal>
+			</td>
+		</tr>
+	</$list>
+	<tr>
+		<td></td>
+		<td style="position:relative;">
+			{{$:/core/ui/UntaggedTemplate}}
+		</td>
+		<td>
+			<small class="tc-menu-list-count"><$count filter="[untagged[]!is[system]] -[tags[]]"/></small>
+		</td>
+		<td></td>
+		<td></td>
+	</tr>
 </tbody>
 </table>

core/ui/ViewTemplate.tid

@@ -7,7 +7,7 @@ $:/state/folded/$(currentTiddler)$
 \define cancel-delete-tiddler-actions(message) <$action-sendmessage $message="tm-$message$-tiddler"/>
 \import [all[shadows+tiddlers]tag[$:/tags/Macro/View]!has[draft.of]]
 <$vars storyTiddler=<<currentTiddler>> tiddlerInfoState=<<qualify "$:/state/popup/tiddler-info">>>
-<div data-tiddler-title=<<currentTiddler>> data-tags={{!!tags}} class={{{ tc-tiddler-frame tc-tiddler-view-frame [<currentTiddler>is[tiddler]then[tc-tiddler-exists]] [<currentTiddler>is[missing]!is[shadow]then[tc-tiddler-missing]] [<currentTiddler>is[shadow]then[tc-tiddler-exists tc-tiddler-shadow]] [<currentTiddler>is[shadow]is[tiddler]then[tc-tiddler-overridden-shadow]] [<currentTiddler>is[system]then[tc-tiddler-system]] [{!!class}] [<currentTiddler>tags[]encodeuricomponent[]addprefix[tc-tagged-]] +[join[ ]] }}} role="article">
+<div data-tiddler-title=<<currentTiddler>> data-tags={{!!tags}} class={{{ [all[shadows+tiddlers]tag[$:/tags/ClassFilters/TiddlerTemplate]!is[draft]] :map:flat[subfilter{!!text}] tc-tiddler-frame tc-tiddler-view-frame [<currentTiddler>is[tiddler]then[tc-tiddler-exists]] [<currentTiddler>is[missing]!is[shadow]then[tc-tiddler-missing]] [<currentTiddler>is[shadow]then[tc-tiddler-exists tc-tiddler-shadow]] [<currentTiddler>is[shadow]is[tiddler]then[tc-tiddler-overridden-shadow]] [<currentTiddler>is[system]then[tc-tiddler-system]] [{!!class}] [<currentTiddler>tags[]encodeuricomponent[]addprefix[tc-tagged-]] +[join[ ]] }}} role="article">
 <$list filter="[all[shadows+tiddlers]tag[$:/tags/ViewTemplate]!has[draft.of]]" variable="listItem">
 <$transclude tiddler=<<listItem>>/>
 </$list>

core/ui/ViewTemplate/unfold.tid

@@ -2,17 +2,21 @@ title: $:/core/ui/ViewTemplate/unfold
 tags: $:/tags/ViewTemplate
 
 \whitespace trim
-<$reveal tag="div" type="nomatch" state="$:/config/ViewToolbarButtons/Visibility/$:/core/ui/Buttons/fold-bar" text="hide">
+<div class="tc-reveal">
+<$list filter="[{$:/config/ViewToolbarButtons/Visibility/$:/core/ui/Buttons/fold-bar}match[show]]" variable="ignore">
 <$reveal tag="div" type="nomatch" stateTitle=<<folded-state>> text="hide" default="show" retain="yes" animate="yes">
 <$button tooltip={{$:/language/Buttons/Fold/Hint}} aria-label={{$:/language/Buttons/Fold/Caption}} class="tc-fold-banner">
 <$action-sendmessage $message="tm-fold-tiddler" $param=<<currentTiddler>> foldedState=<<folded-state>>/>
 {{$:/core/images/chevron-up}}
 </$button>
 </$reveal>
+</$list>
+<$list filter="[{$:/config/ViewToolbarButtons/Visibility/$:/core/ui/Buttons/fold-bar}match[show]] :else[<folded-state>get[text]match[hide]]" variable="ignore">
 <$reveal tag="div" type="nomatch" stateTitle=<<folded-state>> text="show" default="show" retain="yes" animate="yes">
 <$button tooltip={{$:/language/Buttons/Unfold/Hint}} aria-label={{$:/language/Buttons/Unfold/Caption}} class="tc-unfold-banner">
 <$action-sendmessage $message="tm-fold-tiddler" $param=<<currentTiddler>> foldedState=<<folded-state>>/>
 {{$:/core/images/chevron-down}}
 </$button>
 </$reveal>
-</$reveal>
+</$list>
+</div>

core/wiki/config/DefaultTiddlersRetainStory.tid

@@ -0,0 +1,3 @@
+title: $:/config/ControlPanel/Basics/DefaultTiddlers/RetainStory
+
+[list[$:/StoryList]]

core/wiki/config/OfficialPluginLibrary.tid

@@ -1,6 +1,6 @@
 title: $:/config/OfficialPluginLibrary
 tags: $:/tags/PluginLibrary
-url: https://tiddlywiki.com/library/v5.2.4/index.html
+url: https://tiddlywiki.com/library/v5.2.5/index.html
 caption: {{$:/language/OfficialPluginLibrary}}
 
 {{$:/language/OfficialPluginLibrary/Hint}}

core/wiki/config/PageControlButtons.multids

@@ -21,4 +21,5 @@ core/ui/Buttons/print: hide
 core/ui/Buttons/storyview: hide
 core/ui/Buttons/timestamp: hide
 core/ui/Buttons/theme: hide
+core/ui/Buttons/layout: hide
 core/ui/Buttons/unfold-all: hide

core/wiki/macros/list.tid

@@ -1,21 +1,21 @@
 title: $:/core/macros/list
 tags: $:/tags/Macro
 
-\define list-links(filter,type:"ul",subtype:"li",class:"",emptyMessage)
+\define list-links(filter,type:"ul",subtype:"li",class:"",emptyMessage,field:"caption")
 \whitespace trim
-<$type$ class="$class$">
-<$list filter="$filter$" emptyMessage=<<__emptyMessage__>>>
-<$subtype$>
+<$genesis $type=<<__type__>> class=<<__class__>>>
+<$list filter=<<__filter__>> emptyMessage=<<__emptyMessage__>>>
+<$genesis $type=<<__subtype__>>>
 <$link to={{!!title}}>
 <$let tv-wikilinks="no">
-<$transclude field="caption">
+<$transclude field=<<__field__>>>
 <$view field="title"/>
 </$transclude>
 </$let>
 </$link>
-</$subtype$>
+</$genesis>
 </$list>
-</$type$>
+</$genesis>
 \end
 
 \define list-links-draggable-drop-actions()

core/wiki/macros/timeline.tid

@@ -3,14 +3,11 @@ modified: 20141212110330815
 tags: $:/tags/Macro
 title: $:/core/macros/timeline
 
-\define timeline-title()
-\whitespace trim
-<!-- Override this macro with a global macro 
-     of the same name if you need to change 
-     how titles are displayed on the timeline 
-     -->
-<$view field="title"/>
-\end
+<!-- Override one or both of the following two macros with a global or local macro of the same name 
+if you need to change how titles are displayed on a timeline -->
+
+\define timeline-title() <$view field="title"/>
+\define timeline-link() <$link to={{!!title}}><<timeline-title>></$link>
 \define timeline(limit:"100",format:"DDth MMM YYYY",subfilter:"",dateField:"modified")
 \whitespace trim
 <div class="tc-timeline">
@@ -19,7 +16,7 @@ title: $:/core/macros/timeline
 <$view field="$dateField$" format="date" template="$format$"/>
 <$list filter="[sameday:$dateField${!!$dateField$}!is[system]$subfilter$!sort[$dateField$]]">
 <div class="tc-menu-list-subitem">
-<$link to={{!!title}}><<timeline-title>></$link>
+<<timeline-link>>
 </div>
 </$list>
 </div>

core/wiki/macros/toc.tid

@@ -1,6 +1,10 @@
 title: $:/core/macros/toc
 tags: $:/tags/Macro
 
+
+\define toc-open-icon() $:/core/images/down-arrow
+\define toc-closed-icon() $:/core/images/right-arrow
+
 \define toc-caption()
 \whitespace trim
 <span class="tc-toc-caption tc-tiny-gap-left">
@@ -45,12 +49,12 @@ tags: $:/tags/Macro
     <$link to={{{ [<currentTiddler>get[target]else<currentTiddler>] }}}>
       <$reveal type="nomatch" stateTitle=<<toc-state>> text="open">
         <$button setTitle=<<toc-state>> setTo="open" class="tc-btn-invisible tc-popup-keep">
-          {{$:/core/images/right-arrow}}
+          <$transclude tiddler=<<toc-closed-icon>> />
         </$button>
       </$reveal>
       <$reveal type="match" stateTitle=<<toc-state>> text="open">
         <$button setTitle=<<toc-state>> setTo="close" class="tc-btn-invisible tc-popup-keep">
-          {{$:/core/images/down-arrow}}
+          <$transclude tiddler=<<toc-open-icon>> />
         </$button>
       </$reveal>
       <<toc-caption>>
@@ -71,13 +75,13 @@ tags: $:/tags/Macro
     <li class=<<toc-item-class>>>
       <$reveal type="nomatch" stateTitle=<<toc-state>> text="open">
         <$button setTitle=<<toc-state>> setTo="open" class="tc-btn-invisible tc-popup-keep">
-          {{$:/core/images/right-arrow}}
+         <$transclude tiddler=<<toc-closed-icon>> />
           <<toc-caption>>
         </$button>
       </$reveal>
       <$reveal type="match" stateTitle=<<toc-state>> text="open">
         <$button setTitle=<<toc-state>> setTo="close" class="tc-btn-invisible tc-popup-keep">
-          {{$:/core/images/down-arrow}}
+          <$transclude tiddler=<<toc-open-icon>> />
           <<toc-caption>>
         </$button>
       </$reveal>
@@ -117,12 +121,12 @@ tags: $:/tags/Macro
           <$list filter="[all[current]tagging[]$sort$limit[1]]" variable="ignore" emptyMessage="<$button class='tc-btn-invisible'>{{$:/core/images/blank}}</$button>">
           <$reveal type="nomatch" stateTitle=<<toc-state>> text="open">
             <$button setTitle=<<toc-state>> setTo="open" class="tc-btn-invisible tc-popup-keep">
-              {{$:/core/images/right-arrow}}
+            <$transclude tiddler=<<toc-closed-icon>> />
             </$button>
           </$reveal>
           <$reveal type="match" stateTitle=<<toc-state>> text="open">
             <$button setTitle=<<toc-state>> setTo="close" class="tc-btn-invisible tc-popup-keep">
-              {{$:/core/images/down-arrow}}
+              <$transclude tiddler=<<toc-open-icon>> />
             </$button>
           </$reveal>
         </$list>
@@ -144,13 +148,13 @@ tags: $:/tags/Macro
       <$list filter="[all[current]tagging[]$sort$limit[1]]" variable="ignore" emptyMessage="<$button class='tc-btn-invisible'>{{$:/core/images/blank}}</$button> <$view field='caption'><$view field='title'/></$view>">
         <$reveal type="nomatch" stateTitle=<<toc-state>> text="open">
           <$button setTitle=<<toc-state>> setTo="open" class="tc-btn-invisible tc-popup-keep">
-            {{$:/core/images/right-arrow}}
+            <$transclude tiddler=<<toc-closed-icon>> />
             <<toc-caption>>
           </$button>
         </$reveal>
         <$reveal type="match" stateTitle=<<toc-state>> text="open">
           <$button setTitle=<<toc-state>> setTo="close" class="tc-btn-invisible tc-popup-keep">
-            {{$:/core/images/down-arrow}}
+            <$transclude tiddler=<<toc-open-icon>> />
             <<toc-caption>>
           </$button>
         </$reveal>

core/wiki/tags/PageControls.tid

@@ -1,2 +1,2 @@
 title: $:/tags/PageControls
-list: [[$:/core/ui/Buttons/home]] [[$:/core/ui/Buttons/close-all]] [[$:/core/ui/Buttons/fold-all]] [[$:/core/ui/Buttons/unfold-all]] [[$:/core/ui/Buttons/permaview]] [[$:/core/ui/Buttons/new-tiddler]] [[$:/core/ui/Buttons/new-journal]] [[$:/core/ui/Buttons/new-image]] [[$:/core/ui/Buttons/import]] [[$:/core/ui/Buttons/export-page]] [[$:/core/ui/Buttons/control-panel]] [[$:/core/ui/Buttons/advanced-search]] [[$:/core/ui/Buttons/manager]] [[$:/core/ui/Buttons/tag-manager]] [[$:/core/ui/Buttons/language]] [[$:/core/ui/Buttons/palette]] [[$:/core/ui/Buttons/theme]] [[$:/core/ui/Buttons/storyview]] [[$:/core/ui/Buttons/encryption]] [[$:/core/ui/Buttons/timestamp]] [[$:/core/ui/Buttons/full-screen]] [[$:/core/ui/Buttons/print]] [[$:/core/ui/Buttons/save-wiki]] [[$:/core/ui/Buttons/refresh]] [[$:/core/ui/Buttons/more-page-actions]]
+list: [[$:/core/ui/Buttons/home]] [[$:/core/ui/Buttons/close-all]] [[$:/core/ui/Buttons/fold-all]] [[$:/core/ui/Buttons/unfold-all]] [[$:/core/ui/Buttons/permaview]] [[$:/core/ui/Buttons/new-tiddler]] [[$:/core/ui/Buttons/new-journal]] [[$:/core/ui/Buttons/new-image]] [[$:/core/ui/Buttons/import]] [[$:/core/ui/Buttons/export-page]] [[$:/core/ui/Buttons/control-panel]] [[$:/core/ui/Buttons/advanced-search]] [[$:/core/ui/Buttons/manager]] [[$:/core/ui/Buttons/tag-manager]] [[$:/core/ui/Buttons/language]] [[$:/core/ui/Buttons/palette]] [[$:/core/ui/Buttons/theme]] [[$:/core/ui/Buttons/layout]] [[$:/core/ui/Buttons/storyview]] [[$:/core/ui/Buttons/encryption]] [[$:/core/ui/Buttons/timestamp]] [[$:/core/ui/Buttons/full-screen]] [[$:/core/ui/Buttons/print]] [[$:/core/ui/Buttons/save-wiki]] [[$:/core/ui/Buttons/refresh]] [[$:/core/ui/Buttons/more-page-actions]]

editions/d3demo/tiddlers/HelloThere.tid

@@ -1,6 +1,6 @@
 title: HelloThere
 
-This is a demo of TiddlyWiki5 incorporating a plugin for the [[D3.js]] visualization library.
+This is a demo of TiddlyWiki5 incorporating a plugin for the [[D3.js]] visualisation library.
 
 ! Word Cloud
 

editions/de-AT-server/tiddlywiki.info

@@ -11,7 +11,6 @@
 		"tiddlywiki/snowwhite"
 	],
 	"languages": [
-		"en-GB",
 		"de-AT",
 		"de-DE"
 	],

editions/de-AT/tiddlywiki.info

@@ -13,7 +13,6 @@
 		"tiddlywiki/internals"
 	],
 	"languages": [
-		"en-GB",
 		"de-AT",
 		"de-DE"
 	],

editions/de-DE/tiddlywiki.info

@@ -13,7 +13,6 @@
 		"tiddlywiki/internals"
 	],
 	"languages": [
-		"en-GB",
 		"de-AT",
 		"de-DE"
 	],

editions/dev/tiddlers/HelloThere.tid

@@ -1,5 +1,5 @@
 created: 20190115173333457
-modified: 20190115173723915
+modified: 20221029175754753
 tags: TableOfContents
 title: HelloThere
 type: text/vnd.tiddlywiki
@@ -15,6 +15,7 @@ Welcome to the developer documentation for TiddlyWiki (https://tiddlywiki.com/).
 ** [[Using ES2016 for Writing Plugins]]
 ** [[Adding Babel Polyfill to TiddlyWiki]]
 ** [[TiddlyWiki Drag and Drop Interoperability]]
+** [[Javascript Widget Tutorial]]
 * The original developer documentation from https://tiddlywiki.com:
 ** [[TiddlyWiki for Developers]]
 ** [[TiddlyWiki Coding Style Guidelines]]

editions/dev/tiddlers/How to run a local plugin library for testing.tid

@@ -0,0 +1,42 @@
+created: 20221114225038703
+modified: 20221114230502925
+tags: howto
+title: How to run a local plugin library for testing
+type: text/vnd.tiddlywiki
+
+!! Start the Library Server
+
+The "pluginlibrary" edition contains the components needed to set up a local server for ~TiddlyWiki plugin library testing or development.
+
+The following commands will create the library files and start a test server at http://localhost:8888
+
+```
+cd /your/path/to/TiddlyWiki5/editions/pluginlibrary
+tiddlywiki --build test-server
+```
+
+!! Important
+
+''This server is read-only. Nothing is saved back to the filesystem''
+
+!! Test the Library with a Single File Wiki
+
+* Open a single file wiki and import the configuration tiddler form http://localhost:8888/#%24%3A%2Fconfig%2FLocalPluginLibrary
+* Open the ''$:/ControlPanel : Plugins : "Get More Plugins"'' modal
+
+!! Test the Library with a Node.js Wiki
+
+* Create a new wiki with eg:
+
+<<<
+```
+cd /temp/
+tiddlywiki my-wiki --init server
+tiddlywiki my-wiki --listen
+```
+<<<
+
+* Open "my-wiki" from http://localhost:8080
+* Import the http://localhost:8888/#%24%3A%2Fconfig%2FLocalPluginLibrary tiddler into "my-wiki"
+* Open the ''$:/ControlPanel : Plugins : "Get More Plugins"'' modal
+

editions/dev/tiddlers/from Heigele and Jurke/Microkernel Architecture.tid

@@ -5,7 +5,7 @@ sectionnumber: 2
 tags: section doc
 title: Microkernel Architecture
 
-This section describes the architecture of the ~TiddlyWiki-kernel. ~TiddlyWiki is based on a micro-kernel which provides only a small stack of functions. This design decision was made to introduce a cleaner mechanism for customization of ~TiddlyWiki. This section also describes the data-model of ~TiddlyWiki called tiddler. And it gives a overview to the modul system which developers can use to extend the functionality of the ~TiddlyWiki application.
+This section describes the architecture of the ~TiddlyWiki-kernel. ~TiddlyWiki is based on a micro-kernel which provides only a small stack of functions. This design decision was made to introduce a cleaner mechanism for customisation of ~TiddlyWiki. This section also describes the data-model of ~TiddlyWiki called tiddler. And it gives a overview to the module system which developers can use to extend the functionality of the ~TiddlyWiki application.
 
 <$list filter="[!has[draft.of]has[chapter.of]chapter.of[Microkernel Architecture]tag[doc]sort[sub.num]]">
 

editions/dev/tiddlers/from Heigele and Jurke/Syncadaptor.tid

@@ -5,6 +5,6 @@ sub.num: 3
 tags: doc
 title: Syncadaptor
 
-A module with ``module-type: syncadaptor`` provides functionality to get a list of tiddlers (this list is provided as ~SkinnyTiddlers, which are normal tiddlers without the text field) and to load, save and delete single tiddlers. A syncadaptor can also provide functions to login and logout so that syncadaptor modules can be used to synchronize tiddlers with a remote server.
+A module with ``module-type: syncadaptor`` provides functionality to get a list of tiddlers (this list is provided as ~SkinnyTiddlers, which are normal tiddlers without the text field) and to load, save and delete single tiddlers. A syncadaptor can also provide functions to login and logout so that syncadaptor modules can be used to synchronise tiddlers with a remote server.
 
 The syncer module only uses one syncadaptor and honours a special [[system tiddler|System Tiddlers]] [[$:/config/SyncFilter]] containing a [[filter string|Tags and Filter Mechanism]]. Tiddlers matching this filter string are saved to the server with a syncadapter. It uses the [[WebServer API|https://tiddlywiki.com/#WebServer%20API%3A%20Get%20All%20Tiddlers]] to load modified tiddlers from the server, which returns only non-system tiddlers.

editions/dev/tiddlers/from Heigele and Jurke/Tiddler as Basic Element.tid

@@ -27,10 +27,10 @@ On a different level, a tiddler is also the basic unit of work for the wiki user
 This makes sense for multiple reasons:
 Because the UI of TiddlyWiki is build from tiddlers, the wiki user is able to edit the interface of his own TiddlyWiki just by editing a wiki page.
 For example to add a list of tiddler links to the sidebar, the user just needs to create a new tiddler, put the links into this tiddler and tag this tiddler with ``$:/tags/SideBar``.
-This way the user can customize his work environment just by using mechanisms he already uses to manage his wiki pages.
+This way the user can customise his work environment just by using mechanisms he already uses to manage his wiki pages.
 Tiddlers consist of fields. When using a tiddler as wiki page, the user can use these fields to store meta information, like tags.
 
-Because fields for metadata and especially tags are an easy way for the user to organize his wiki pages, TiddlyWiki provides a special filter mechanism to choose tiddlers using their metadata.
+Because fields for metadata and especially tags are an easy way for the user to organise his wiki pages, TiddlyWiki provides a special filter mechanism to choose tiddlers using their metadata.
 A filter string like ``[tag[learncard]topic[math]!tag[successful]]`` would filter all tiddlers tagged with "learncard", with the value "math" in the topic-field and are not tagged with "successful".
 A user could use this filter together with the ``<$list>`` widget to display a list of all math learncards which are not yet answered successfully in a wiki page.
 

editions/dev/tiddlers/from tw5.com/Developing plugins using Node.js and GitHub.tid

@@ -10,7 +10,7 @@ The most practical way to develop plugins is to use Node.js with the tiddlywiki5
 
 !! 1. Installation
 
-First read  https://tiddlywiki.com/static/PluginMechanism.html.
+First read https://tiddlywiki.com/static/PluginMechanism.html.
 
 Install Git from http://git-scm.com/downloads
 
@@ -85,7 +85,7 @@ For example files see the plugins in the ~TiddlyWiki5 repository i.e. those loca
 
 !!5. Build your files into a ~TiddlyWiki
 
-Modify `editions/tw5.com/tiddlywiki.info` to include a reference to your plugin directory,  i.e. find `"plugins": [ ` and add `"yourname/pluginname"`.
+Modify `editions/tw5.com/tiddlywiki.info` to include a reference to your plugin directory, i.e. find `"plugins": [ ` and add `"yourname/pluginname"`.
 
 From the TW5 directory issue the command
 

editions/dev/tiddlers/from tw5.com/mechanisms/BootMechanism.tid

@@ -23,7 +23,7 @@ The boot kernel includes:
 * Several short shared utility functions
 * A handful of methods implementing the module mechanism
 * The `$tw.Tiddler` class (and field definition plugins)
-* The `$tw.Wiki` class (and tiddler deserialization methods)
+* The `$tw.Wiki` class (and tiddler deserialisation methods)
 * Code for the browser to load tiddlers from the HTML DOM
 * Code for the server to load tiddlers from the file system
 

editions/dev/tiddlers/javascript-widget-tutorial/Child widgets tutorial.tid

@@ -0,0 +1,140 @@
+created: 20190202160512541
+modified: 20190222231130254
+title: Child widgets tutorial
+type: text/vnd.tiddlywiki
+
+\define showTrees(wikitext)
+<table>
+<thead>
+<tr><th>wiki text</th><th>html</th><th>renders as</th></tr>
+</thead>
+<tbody>
+<tr>
+<td>`$wikitext$`</td>
+<td>
+<$wikify name=html text="""$wikitext$""" output=html mode=inline>
+<$text text=<<html>>/>
+</$wikify>
+</td>
+<td>$wikitext$</td>
+</tr>
+</tbody>
+</table>
+
+<table>
+<thead>
+<tr><th>parse tree</th><th>widget tree</th></tr>
+</thead>
+<tbody>
+<tr>
+<td style="vertical-align: text-top">
+<pre><code>
+<$wikify name=parsetree text="""$wikitext$""" output=parsetree mode=inline>
+<<parsetree>>
+</$wikify>
+</code></pre>
+</td>
+<td style="vertical-align: text-top">
+<pre><code>
+<$wikify name=widgettree text="""$wikitext$""" output=widgettree mode=inline>
+<<widgettree>>
+</$wikify>
+</code></pre>
+</td>
+</tr>
+</tbody>
+</table>
+\end
+
+! Introduction
+
+Until now the examples have covered only simple, leaf widgets, but widgets can be arranged into a hierarchy. Compared to a leaf-only widget, widget classes which support having children must contain code to instantiate the children.
+
+Not all widgets need to support having children. Widgets whose only purpose is to integrate third party javascript libraries, for example may not need it.
+
+! wiki text ⇨ parse tree ⇨ widget tree ⇨ DOM tree
+
+# [[wiki text|https://tiddlywiki.com/#WikiText]] - Users write content in tiddlers using wiki text.
+# [[parse tree|https://tiddlywiki.com/dev/#ParsingMechanism]] - A parse tree is a JSON data structure describing the wiki text. Wiki text can be converted into a parse tree using `this.wiki.parseText`.
+# ''widget tree'' - Most items in the parse tree correspond to one or more items in the widget tree. The `this.makeChildWidgets` method is used to convert the parse tree into a widget tree.
+# [[DOM tree|https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model/Introduction]] - A DOM tree is a standard javascript datastructure used by browsers to display a web page. The `this.renderChildren` method is used to instantiate the widget class and then render each widget in the widget tree. If a given widget will be visible in the browser, then one or more DOM nodes will be created.
+
+!Examples
+
+!! Simple trees without nesting
+
+[[Widgets in wiki text|https://tiddlywiki.com/#Widgets%20in%20WikiText]] have a syntax similar to html (i.e. `<$list/>`). But all [[wiki markup|https://tiddlywiki.com/#WikiText]] is seen by the tiddlywiki code as widgets.
+
+Even a simple string with no special syntax will be treated as a widget. In this case a widget of type `text`:
+
+<<showTrees """hello""">>
+
+The above bare string of text is mostly just a synonym for this widget syntax:
+
+<<showTrees """<$text text=hello/>""">>
+
+Some of the details of the parseTree and widgetTree are different in the two examples, but the general structure is the same and the rendered output is the same.
+
+In these two simple examples, there is no nesting and so no child widgets are created. 
+
+!! Trees with one level of nesting
+
+This next example shows the structure for bold wiki syntax. It is still simple, but does introduce one level of nesting: `element`→`text`
+
+The wiki syntax for bold converts to the standard html element `strong`. Any standard html element is represented in tiddlywiki as a widget of type `element`:
+
+<<showTrees """''bold''""">>
+
+Another example showing one level of nesting (`link`→`text`):
+
+<<showTrees """<$link to=atiddler>link</$link>""">>
+
+!!Widgets with no DOM contribution
+Not all widgets contribute items to the DOM. The purpose of some widgets is to affect the display of descendant widgets by changing some state. The `$set` widget for example sets a variable which will be accessible to the descendant widgets:
+
+<<showTrees """<$set name=myvar value=hi/>""">>
+
+Nothing is rendered and there is no html, but the parse tree and widget tree contain information about the variable.
+
+!! Dynamic widget children using this.wiki.parseText
+
+In all the examples so far, there has been a close mapping between the nesting structure of the parse tree and the widget tree. If the item is in the parse tree, then it is in the widget tree. If the parse tree item has children, then the widget tree has the same number of children.
+
+However, there are several examples of widgets in which more levels of nesting are created dynamically during the widget rendering process
+
+The `$macrocall` widget is one example:
+
+<<showTrees """<$macrocall $name=now/>""" >>
+
+The parse tree has just a single type=$macrocall element with no children. The widget tree has that same type=$macrocall element, but it also has a child widget which wasn't in the parse tree.
+
+In all cases, the `$macrocall` widget calls the given macro and then calls `this.wiki.parseText` on the output. This results in a new parse tree which is used to make the child widgets.
+
+In this particular case, the `now` macro is called. It returns a simple string of text, so when it is parsed the result causes the creation of a single child text widget containing the current date and time.
+
+!! Widgets which do not support nesting
+
+Just as some widgets can cause widget trees to have more nesting than the parse tree, some widgets can cause widget trees to have less nesting.
+
+This happens when there is no use for the widget to have any children. The `$text` widget, for example, has no use for displaying any descendants.
+
+This behavior is accomplished by not calling the `makeChildWidgets` method. Without that method call, the child widgets are not created from the child parse tree items. For example:
+
+<$macrocall $name=showTrees wikitext="""<$text text="hi">ignored child text</$text>"""/>
+
+Since the `$text` widget does not have a call to `makeChildWidgets`, 'ignored child text' above is present in the parse tree, but not in the widget tree.
+
+!Reference
+
+|!method|!when to call|!what it does|
+|`makeChildWidgets`|directly or indirectly from `render` method|converts child parse tree items into widget tree items|
+|`renderChildren`|directly or indirectly from `render` method, after the `makeChildWidgets` call|calls the `render` method of the child widget|
+|`refreshChildren`|directly or indirectly from `refresh` method, only needed if `refreshSelf` is not called|calls the `refresh` method of of the child widgets so they can check if refresh is needed|
+|`this.wiki.parseText`|pass the output parse tree to `makeChildWidgets`|converts the given text to a parse tree...only needed for dynamically constructed parsetree|
+
+|!example call|!purpose|!widgets using this approach|
+|`this.makeChildWidgets()`|construct child widgets from the static parse tree|[[$link|$:/core/modules/widgets/link.js]], [[$button|$:/core/modules/widgets/button.js]], etc.|
+|`this.makeChildWidgets(parseTreeNodes)`|construct child widgets from a dynamic parse tree|[[$list|$:/core/modules/widgets/list.js]], [[$transclude|$:/core/modules/widgets/transclude.js]], [[$macrocall|$:/core/modules/widgets/macrocall.js]], etc|
+|`this.renderChildren(parent, nextSibling)`|when the widget adds nothing to the dom, just pass the `render` arguments through to the children|[[$set|$:/core/modules/widgets/set.js]], [[$importvariables|$:/core/modules/widgets/importvariables.js]], [[$tiddler|$:/core/modules/widgets/tiddler.js]], [[$wikify|$:/core/modules/widgets/wikify.js]], etc.|
+|`this.renderChildren(domNode, null)`|passes the dom node generated by this widget into the children|[[$link|$:/core/modules/widgets/link.js]], [[$button|$:/core/modules/widgets/button.js]], etc|
+

editions/dev/tiddlers/javascript-widget-tutorial/Do nothing widget demo.tid

@@ -0,0 +1,22 @@
+created: 20190201120100249
+modified: 20190201222600576
+tags: 
+title: Do nothing widget demo
+type: text/vnd.tiddlywiki
+
+<!-- The innerwiki doesn't refresh on its own when tiddlers on the outside change, so use the list widget to force a dependency -->
+<$list name=refresh filter=[[donothing.js]get[text]]>
+<$innerwiki width="600" height="400" style="width:100%;">
+	<$data title="$:/DefaultTiddlers" text="[[do nothing widget]]"/>
+	<$data $tiddler=donothing.js/>
+	<$data title="do nothing widget" text="""
+```
+<$donothing/>
+```
+
+Renders as:
+
+<$donothing/>
+"""/>
+</$innerwiki>
+</$list>

editions/dev/tiddlers/javascript-widget-tutorial/Do nothing widget tutorial.tid

@@ -0,0 +1,25 @@
+created: 20190201232102417
+modified: 20190202145547621
+tags: 
+title: Do nothing widget tutorial
+type: text/vnd.tiddlywiki
+
+In order to define a widget in a tiddler, the tiddler must satisfy these requirements:
+
+* type field is application/javascript
+* module-type field is widget
+* the text field contains the javascript code
+
+The [[donothing.js]] tiddler fulfills the requirements and its code looks like this:
+{{donothing.js}}
+That code does 2 key things:
+
+* Imports the core Widget class ([[$:/core/modules/widgets/widget.js]])
+* exports the class in an attribute with the name we want our widget to have (`donothing`)
+
+Here's what it looks like:
+{{Do nothing widget demo}}
+And it worked. No error message this time.
+
+''Exercise'': Modify [[donothing.js]] and [[Do nothing widget demo]] so the widget is named `noop` instead of `donothing`
+

editions/dev/tiddlers/javascript-widget-tutorial/Hello World demo.tid

@@ -0,0 +1,23 @@
+created: 20190201114718313
+modified: 20190201231556294
+tags: 
+title: Hello World demo
+type: text/vnd.tiddlywiki
+
+<!-- The innerwiki doesn't refresh on its own when tiddlers on the outside change, so use the list widget to force a dependency -->
+<$list name=refresh filter=[[hello.js]get[text]]>
+<$innerwiki width="600" height="400" style="width:100%;">
+	<$data title="$:/DefaultTiddlers" text="[[hello world widget]]"/>
+	<$data $tiddler=hello.js/>
+	<$data title="hello world widget" text="""
+```
+<$hello/>
+```
+
+Renders as:
+
+<$hello/>
+"""/>
+
+</$innerwiki>
+</$list>

editions/dev/tiddlers/javascript-widget-tutorial/Hello World widget tutorial.tid

@@ -0,0 +1,18 @@
+created: 20190201232200698
+modified: 20190216175629825
+tags: 
+title: Hello World widget tutorial
+type: text/vnd.tiddlywiki
+
+Now let's create a widget which actually has output.
+
+When tiddlywiki encounters a widget definition like `<$hello>` it will create an object which is an instance of the class which is exported by the widget code. 
+
+In addition to creating an instance of the class, tiddlywiki will call the render method of the resulting object. The render method is expected to create a dom node which will be display in place of the widget.
+
+In the `donothing` example the core widget was exported. The core widget class doesn't have a render method which creates a dom node and that's why there is no output. Getting output requires writing a widget class which inherits from the core `Widget` class. Code in the render method of this class will display the hello world message.
+
+The [[hello.js]] tiddler has code which accomplishes that:
+{{hello.js}}
+The code for importing the core widget class remains, but now we also have code to create our own class which inherits from it. In addition an implementation of the `render` method is included. Here is the result:
+{{Hello World demo}}

editions/dev/tiddlers/javascript-widget-tutorial/Javascript Widget Tutorial.tid

@@ -0,0 +1,37 @@
+created: 20190202035524804
+modified: 20221029161501848
+tags: 
+title: Javascript Widget Tutorial
+type: text/vnd.tiddlywiki
+
+! Introduction
+This tutorial provides step-by-step, interactive examples of how to write code for tiddlywiki widgets. The demo javascript code can be modified without having to reload the entire wiki.
+
+Intended audience:
+
+# Those who know tiddlywiki well and know programming and javascript and want to write their own widget. I don't make any effort to explain javascript here. For that you will need other resources.
+# Those who know tiddlywiki well and don't know javascript, but want to understand more about how tiddlywiki works. You should be able to skim through and interact with the demos and learn something.
+
+!The tutorial
+*[[Undefined widget tutorial]]
+*[[Do nothing widget tutorial]]
+*[[Hello World widget tutorial]]
+*[[Widget refresh tutorial part I]]
+*[[Widget refresh tutorial part II]]
+*[[Widget refresh tutorial part III]]
+*[[Widget attributes tutorial part I]]
+*[[Widget attributes tutorial part II]]
+*[[Child widgets tutorial]]
+
+! Notes
+
+tiddlywiki doesn't support dynamically reloading javascript. If you change a javascript tiddler, then you need to save and reload  the wiki before the changes will take affect.
+
+To avoid the need for such reloads, the excellent [[innerwiki plugin|https://tiddlywiki.com/prerelease/plugins/tiddlywiki/innerwiki/]] is used. This allows an inner wiki to be created from a subset of tiddlers in the outer wiki. Each time the inner wiki is refreshed, its entire wiki is reloaded and the javascript changes in the inner wiki will take affect.
+
+Without the need for reloads, a tiddlywiki instance with the [[innerwiki plugin|https://tiddlywiki.com/prerelease/plugins/tiddlywiki/innerwiki/]] installed works great as a playground for interacting with tiddlywiki javascript.
+
+! Other documentation on writing TW widgets
+
+*WidgetModules
+*[[Widgets]]

editions/dev/tiddlers/javascript-widget-tutorial/Undefined widget demo.tid

@@ -0,0 +1,18 @@
+created: 20190201212238781
+modified: 20190201213112748
+tags: 
+title: Undefined widget demo
+type: text/vnd.tiddlywiki
+
+<$innerwiki width="600" height="400" style="width:100%;">
+	<$data title="$:/DefaultTiddlers" text="[[Undefined widget]]"/>
+	<$data title="Undefined widget" text="""
+```
+<$donothing/>
+```
+
+Renders as:
+
+<$donothing/>
+"""/>
+</$innerwiki>

editions/dev/tiddlers/javascript-widget-tutorial/Undefined widget tutorial.tid

@@ -0,0 +1,11 @@
+created: 20190201232001970
+modified: 20190202145655413
+tags: 
+title: Undefined widget tutorial
+type: text/vnd.tiddlywiki
+
+Let's start be defining a minimal widget which does nothing. It doesn't support any attributes, no child elements, and it doesn't output anything. The name of the widget will be `donothing`. If it does nothing, then how can we verify after writing the code that we accomplished anything? Well, let's see what happens when an undefined widget is referenced.
+
+{{Undefined widget demo}}
+
+Since we haven't written the code, the attempt to render the widget gives an undefined widget error. So we will know the donothing code accomplishes something if we don't get the undefined widget error when rendering.