Rejig genesis widget to be easier to use

core/modules/widgets/genesis.js

@@ -43,14 +43,16 @@ GenesisWidget.prototype.execute = function() {
 	var self = this;
 	// Collect attributes
 	this.genesisType = this.getAttribute("$type","element");
-	this.genesisTag = this.getAttribute("$tag","div");
 	this.genesisRemappable = this.getAttribute("$remappable","yes") === "yes";
 	this.genesisNames = this.getAttribute("$names","");
 	this.genesisValues = this.getAttribute("$values","");
 	// Construct parse tree
+	var isElementWidget = this.genesisType.charAt(0) !== "$",
+		nodeType = isElementWidget ? "element" : this.genesisType.substr(1),
+		nodeTag = isElementWidget ? this.genesisType : undefined;
 	var parseTreeNodes = [{
-		type: this.genesisType,
-		tag: this.genesisTag,
+		type: nodeType,
+		tag: nodeTag,
 		attributes: {},
 		orderedAttributes: [],
 		children: this.parseTreeNode.children || [],

editions/test/tiddlers/tests/data/genesis-widget/DollarSigns.tid

@@ -6,8 +6,8 @@ tags: [[$:/tags/wiki-test-spec]]
 title: Output
 
 \whitespace trim
-<$genesis $type="let" myvar="Kitten">(<$text text=<<myvar>>/>)</$genesis>
-<$genesis $type="let" $$myvar="Kitten">(<$text text=<<$myvar>>/>)</$genesis>
+<$genesis $type="$let" myvar="Kitten">(<$text text=<<myvar>>/>)</$genesis>
+<$genesis $type="$let" $$myvar="Kitten">(<$text text=<<$myvar>>/>)</$genesis>
 +
 title: ExpectedResult
 

editions/test/tiddlers/tests/data/genesis-widget/MultipleAttributes.tid

@@ -6,8 +6,8 @@ tags: [[$:/tags/wiki-test-spec]]
 title: Output
 
 \whitespace trim
-<$genesis $type="let" $names="myvar other" $values="Kitten Donkey" myvar={{{ Shark }}}>(<$text text=<<myvar>>/>|<$text text=<<other>>/>)</$genesis>
-<$genesis $type="let" $names="$myvar $other" $values="Kitten Donkey" $$myvar="Shark">(<$text text=<<$myvar>>/>|<$text text=<<$other>>/>)</$genesis>
+<$genesis $type="$let" $names="myvar other" $values="Kitten Donkey" myvar={{{ Shark }}}>(<$text text=<<myvar>>/>|<$text text=<<other>>/>)</$genesis>
+<$genesis $type="$let" $names="$myvar $other" $values="Kitten Donkey" $$myvar="Shark">(<$text text=<<$myvar>>/>|<$text text=<<$other>>/>)</$genesis>
 +
 title: ExpectedResult
 

editions/test/tiddlers/tests/data/genesis-widget/Simple.tid

@@ -6,8 +6,8 @@ tags: [[$:/tags/wiki-test-spec]]
 title: Output
 
 \whitespace trim
-<$genesis $tag="div">Mouse</$genesis>
-<$genesis $tag="div" class="tc-thing" label="Squeak">Mouse</$genesis>
+<$genesis $type="div">Mouse</$genesis>
+<$genesis $type="div" class="tc-thing" label="Squeak">Mouse</$genesis>
 +
 title: ExpectedResult
 

editions/test/tiddlers/tests/data/transclude/CustomWidget-Override-Codeblock.tid

@@ -17,7 +17,7 @@ title: Definition
 
 \whitespace trim
 \widget $codeblock(code)
-<$genesis $type="codeblock" $remappable="no" code={{{ [<code>addprefix[£]addsuffix[@]] }}}/>
+<$genesis $type="$codeblock" $remappable="no" code={{{ [<code>addprefix[£]addsuffix[@]] }}}/>
 \end
 +
 title: Subject

editions/test/tiddlers/tests/data/transclude/CustomWidget-OverrideTransclude.tid

@@ -24,7 +24,7 @@ title: TiddlerOne
 		Whale
 	</$slot>
 \end
-<$genesis $type="transclude" $remappable="no" $$tiddler="TiddlerZero">
+<$genesis $type="$transclude" $remappable="no" $$tiddler="TiddlerZero">
 	Crocodile
 </$genesis>
 +

editions/test/tiddlers/tests/data/transclude/CustomWidget-TextWidgetOverride.tid

@@ -15,7 +15,7 @@ title: TiddlerOne
 <!-- Redefine the <$text> widget by defining a transcludable variable with that name -->
 \widget $text(text:'Jaguar')
 \whitespace trim
-<$genesis $type="text" $remappable="no" text=<<text>>/>
+<$genesis $type="$text" $remappable="no" text=<<text>>/>
 <$set name="$text" value="">
 	<$slot $name="ts-raw">
 		Whale

editions/tw5.com/tiddlers/widgets/GenesisWidget.tid

@@ -1,6 +1,6 @@
 caption: genesis
-created: 20220502144738010
-modified: 20220502144738010
+created: 20220909102917736
+modified: 20220909102917736
 tags: Widgets
 title: GenesisWidget
 type: text/vnd.tiddlywiki
@@ -14,8 +14,7 @@ type: text/vnd.tiddlywiki
 The content of the `<$genesis>` widget is used as the content of the dynamically created widget.
 
 |!Attribute |!Description |
-|$type |The type of widget to create (note that the first `$` must not be included, so the `<$text>` widget would be created by passing `text`) |
-|$tag |The HTML tag to be used for "element" widgets |
+|$type |The type of widget or element to create (an initial `$` indicates a widget, otherwise an HTML element will be created) |
 |$names |An optional filter evaluating to the names of a list of attributes to be applied to the widget |
 |$values |An optional filter evaluating to the values corresponding to the list of names specified in `$names` |
 |//{other attributes starting with $}// |Other attributes starting with a single dollar sign are reserved for future use |
@@ -27,4 +26,4 @@ Note that attributes explicitly specified take precedence over attributes with t
 ! Examples
 
 <$macrocall $name='wikitext-example-without-html' 
-src='<$genesis $tag="div" class="tc-thing" label="Squeak">Mouse</$genesis>'/>
+src='<$genesis $type="div" class="tc-thing" label="Squeak">Mouse</$genesis>'/>