Add style hint for preventing spin box selection on up/down

On a mobile device, selecting text in a line edit brings up the text
action popup for select/copy/cut. In a spinbox where the user changes the
value using the buttons, this can be very irritating, without providing
any usability - the user is unlikely to start typing, at least not
without first transferring focus into the lineedit first to bring up the
keyboard.

This style hint allows styles to override the default behavior of
QAbstractSpinBox. Implement the customization for the Android style, and
add a test case for QSpinBox.

[ChangeLog][QtWidgets][QStyle] A new style hint, SH_SpinBox_SelectOnStep,
specifies whether pressing the up/down buttons or keys in a spinbox will
automatically select the text.

Fixes: QTBUG-93366
Change-Id: If06365a7c62087a2213145e13119f56544ac33b5
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/plugins/styles/android/qandroidstyle.cpp b/src/plugins/styles/android/qandroidstyle.cpp
index 1d9ce7e9b0..464f48b84b 100644
--- a/src/plugins/styles/android/qandroidstyle.cpp
+++ b/src/plugins/styles/android/qandroidstyle.cpp
@@ -677,6 +677,9 @@ int QAndroidStyle::styleHint(QStyle::StyleHint hint, const QStyleOption *option,
     case SH_RequestSoftwareInputPanel:
         return RSIP_OnMouseClick;
 
+    case SH_SpinBox_SelectOnStep:
+        return 0;
+
     default:
         return QFusionStyle::styleHint(hint, option, widget, returnData);
     }