Add a cascade for the view template title

core/language/en-GB/ControlPanel.multids

@@ -220,4 +220,6 @@ Toolbars/ViewToolbar/Caption: View Toolbar
 Toolbars/ViewToolbar/Hint: Choose which buttons are displayed for tiddlers in view mode. Drag and drop to change the ordering
 Tools/Download/Full/Caption: Download full wiki
 ViewTemplateBody/Caption: View Template Body
-ViewTemplateBody/Hint: This rule cascade is used by the default view template to dynamically choose the template for displaying the body of a tiddler.
+ViewTemplateBody/Hint: This rule cascade is used by the default view template to dynamically choose the template for displaying the body of a tiddler.
+ViewTemplateTitle/Caption: View Template Title
+ViewTemplateTitle/Hint: This rule cascade is used by the default view template to dynamically choose the template for displaying the title of a tiddler.

core/ui/ControlPanel/Templates/ViewTemplateTitle.tid

@@ -0,0 +1,9 @@
+title: $:/core/ui/ControlPanel/ViewTemplateTitle
+tags: $:/tags/ControlPanel/Templates
+caption: {{$:/language/ControlPanel/ViewTemplateTitle/Caption}}
+
+\define lingo-base() $:/language/ControlPanel/ViewTemplateTitle/
+
+<<lingo Hint>>
+
+{{$:/tags/ViewTemplateTitleFilter||$:/snippets/ListTaggedCascade}}

core/ui/ViewTemplate/title.tid

@@ -21,16 +21,7 @@ fill:$(foregroundColor)$;
 </span>
 </$list>
 </$set>
-<$list filter="[all[current]removeprefix[$:/]]">
-<h2 class="tc-title" title={{$:/language/SystemTiddler/Tooltip}}>
-<span class="tc-system-title-prefix">$:/</span><$text text=<<currentTiddler>>/>
-</h2>
-</$list>
-<$list filter="[all[current]!prefix[$:/]]">
-<h2 class="tc-title">
-<$view field="title"/>
-</h2>
-</$list>
+<$transclude tiddler={{{ [<currentTiddler>] :cascade[all[shadows+tiddlers]tag[$:/tags/ViewTemplateTitleFilter]get[text]] :and[!is[blank]else[$:/core/ui/ViewTemplate/title/default]] }}} />
 </$link>
 </$set>
 </div>

core/ui/ViewTemplate/title/default.tid

@@ -0,0 +1,5 @@
+title: $:/core/ui/ViewTemplate/title/default
+
+<h2 class="tc-title">
+<$view field="title"/>
+</h2>

core/ui/ViewTemplate/title/system.tid

@@ -0,0 +1,5 @@
+title: $:/core/ui/ViewTemplate/title/system
+
+<h2 class="tc-title" title={{$:/language/SystemTiddler/Tooltip}}>
+<span class="tc-system-title-prefix">$:/</span><$text text={{{ [<currentTiddler>removeprefix[$:/]] }}}/>
+</h2>

core/wiki/config/ViewTemplateTitleFilters.multids

@@ -0,0 +1,5 @@
+title: $:/config/ViewTemplateTitleFilters/
+tags: $:/tags/ViewTemplateTitleFilter
+
+system: [prefix[$:/]then[$:/core/ui/ViewTemplate/title/system]]
+default: [[$:/core/ui/ViewTemplate/title/default]]

core/wiki/tags/ViewTemplateTitleFilter.tid

@@ -0,0 +1,3 @@
+title: $:/tags/ViewTemplateTitleFilter
+list: $:/config/ViewTemplateTitleFilters/system $:/config/ViewTemplateTitleFilters/default
+