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Item7814: Feature request: Enable topmenuskin breadcrumbs to be turned off in selected webs

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AppliesTo: Component: Priority: CurrentState: WaitingFor: TargetRelease ReleasedIn
Engine topmenuskin Enhancement New      

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It is possible to turn on topmenuskin breadcrumbs globally in Public/TWikiPreferences with '* Set BREADCRUMBS = 1' but trying to turn it off selectively, eg. in public facing webs with a nice DashBoard where the trail is superfluous such as Public/WebPreferences with '* Set BREADCRUMBS = 0' does not work.


The code in templates/view.topmenu.tmpl only checks that the BREADCRUMBS variable has been defined to activate the feature. There is no TWiki meta-code that does the opposite of the 'Set', ie. a '* Unset BREADCRUMBS' command, so it is not possible to undefine the variable in say, Public/WebPreferences.


Made a small modification to templates/view.topmenu.tmpl to test that the BREADCRUMBS variable has been defined AND has a value >0 before activating the feature. Now writing '* Set BREADCRUMBS = 0' in eg. Public/WebPreferences turns off the feature in that web while leaving it on in all others.

Here is a patch to templates/view.topmenu.tmpl to make it possible to selectively turn off topmenuskin breadcrumbs.

-- TWiki:Main/TomCrane - 2017-06-08

I discovered a clash between the use of BREADCRUMBS as a variable here in topmenuskin and in BreadCrumbsPlugin which also defines a BREADCRUMBS variable. Using assignments such as '* Set BREADCRUMBS = 1' in eg. WebPreferences to control the display of the topmenuskin breadcrumbs trails at the top of each page, results in eg. %BREADCRUMBS% TWiki ML calls elsewhere to the BreadCrumbsPlugin code returning '1' instead of the expected breadcrumbs trail.

My solution: Rename the BREADCRUMBS variable in topmenuskin and other references to it to TOPMENU_BREADCRUMBS.

Tom Crane

-- TWiki:Main.TomCrane - 2017-09-14

Summary Feature request: Enable topmenuskin breadcrumbs to be turned off in selected webs
ReportedBy TWiki:Main.TomCrane
Codebase 6.0.2
SVN Range TWiki-6.0.2-trunk, Thu, 01 Jun 2017, build 30349
AppliesTo Engine
Component topmenuskin
Priority Enhancement
CurrentState New




Topic attachments
I Attachment History Action Size Date Who Comment
Unknown file formatpatch topmenu-breadcrumbs.patch r1 manage 1.0 K 2017-06-08 - 18:38 TomCrane Patch to templates/view.topmenu.tmpl to make it possible to selectively turn off topmenuskin breadcrumbs
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Topic revision: r2 - 2017-09-14 - TomCrane
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