[Interest] Problems customising Combobox popup with Qt 6.8.0

[Nuno Santos]

Awesome! Thanks!

> On 14 Nov 2024, at 02:29, EXT Mitch Curtis <mitch.curtis at qt.io> wrote:
> 
> Ah, good catch! I've pushed a fix: https://codereview.qt-project.org/c/qt/qtdeclarative/+/604083
> 
>> -----Original Message-----
>> From: Nuno Santos <nuno.santos at imaginando.pt <mailto:nuno.santos at imaginando.pt>>
>> Sent: Wednesday, 13 November 2024 5:05 PM
>> To: EXT Mitch Curtis <mitch.curtis at qt.io <mailto:mitch.curtis at qt.io>>
>> Cc: interestqt-project. org <interest at qt-project.org <mailto:interest at qt-project.org>>
>> Subject: Re: [Interest] Problems customising Combobox popup with Qt 6.8.0
>> 
>> Mitch,
>> 
>> Thanks for your reply.
>> 
>> Inside QtCreator I’ve entered inside Combobox and seen the template for the
>> Combobox customisation which is different from the documentation.
>> 
>> If I change this line:
>> 
>> implicitHeight: contentItem.implicitHeight
>> 
>> To
>> 
>> height: Math.min(contentItem.implicitHeight, control.Window.height -
>> topMargin - bottomMargin)
>> 
>> It works as expected.
>> 
>> Now I don’t know if this is a documentation issue or a code issue.
>> 
>> Please advise and I will open the bug report.
>> 
>> Best regards,
>> 
>> Nuno
>> 
>> 
>> 	On 13 Nov 2024, at 03:55, EXT Mitch Curtis <mitch.curtis at qt.io>
>> wrote:
>> 
>> 	Hi,
>> 
>> 
>> 
>> 		-----Original Message-----
>> 		From: Interest <interest-bounces at qt-project.org
>> <mailto:interest-bounces at qt-project.org> > On Behalf Of Nuno Santos
>> 		via Interest
>> 		Sent: Wednesday, 13 November 2024 3:43 AM
>> 		To: interestqt-project. org <interest at qt-project.org <mailto:interest at qt-project.org>
>> <mailto:interest at qt-project.org> >
>> 		Subject: [Interest] Problems customising Combobox popup
>> with Qt 6.8.0
>> 
>> 		Hi,
>> 
>> 		Since Qt 6.8.0, customising Combobox popup property makes
>> the Combobox
>> 		unscrollable when the list goes beyond the window height.
>> However, if the
>> 		popup is removed, scrolling works as expected.
>> 
>> 		Is there any particular detail on the documentation
>> customisation code that
>> 		hasn’t been updated yet?
>> 
>> 		ComboBox {
>> 		       id: control
>> 		       model: 100
>> 		       popup: Popup {
>> 		           y: control.height - 1
>> 		           width: control.width
>> 		           implicitHeight: contentItem.implicitHeight
>> 		           padding: 1
>> 		           contentItem: ListView {
>> 		               clip: true
>> 		               implicitHeight: contentHeight
>> 		               model: control.popup.visible ? control.delegateModel :
>> null
>> 		               currentIndex: control.highlightedIndex
>> 		               ScrollIndicator.vertical: ScrollIndicator { }
>> 		           }
>> 		           background: Rectangle {
>> 		               border.color: "#21be2b"
>> 		               radius: 2
>> 		           }
>> 		       }
>> 		   }
>> 
>> 
>> 		Project attached.
>> 
>> 
>> 		Has anyone faced this problem?
>> 
>> 
>> 
>> 	I can reproduce this with 6.7.3 but not 6.6.3.
>> 
>> 	"git log v6.6.3..v6.7.3 --
>> src/quicktemplates/qquickpopuppositioner.cpp" shows several changes and
>> unfortunately a quick revert to check isn't on the cards here as it doesn't apply
>> cleanly.
>> 
>> 	Can you please create a bug report?
>> 
>> 
>> 
>> 
>> 		Thanks in advance!
>> 
>> 
>> 		Regards,
>> 
>> 
>> 		Nuno

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