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Suppress focus loss on opening combobox popup in wxGTK

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Make GTKHandleFocusOut() virtual and override it in wxChoice in order to
avoid generating wxEVT_KILL_FOCUS events when the combobox dropdown
button is clicked.

This is important because it allows fatal problems when using a
combobox-based in-place editor in wxDataViewCtrl as getting these events
totally broke the UI before.

See #17034.
This commit is contained in:
Vadim Zeitlin
2018-02-04 00:05:48 +01:00
parent 1148b2e0fe
commit 508a409f7e
4 changed files with 20 additions and 1 deletions
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include/wx/gtk/choice.h
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@@ -101,6 +101,7 @@ protected:
virtual void DoClear() wxOVERRIDE;
virtual void DoDeleteOneItem(unsigned int n) wxOVERRIDE;
virtual bool GTKHandleFocusOut() wxOVERRIDE;
virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const wxOVERRIDE;
virtual void DoApplyWidgetStyle(GtkRcStyle *style) wxOVERRIDE;