Preferred DragAction of DropTargets is ignored on X11
Steps to reproduce
- Open any Gtk4 example with an entry. For example the
gtk4-demo
. - Insert some text in an entry. For example into the search entry of the
gtk4-demo
. - Select some letters of the text and try dragging them around inside the entry.
- Do the above on Wayland and X11: Moving the letters works on Wayland while they are copied on X11.
- The behavior can be changed by holding down the modifiers Ctrl or Shift respectively, however the default behavior differs between X11 and Wayland.
Current behavior
As stated above, if no modifier is hold down during a drag operation inside an entry, the default drag action is copy on X11 and move on Wayland.
Expected outcome
Both should behave in the same way; in the case of an entry, move (e.g. Wayland behavior) would be preferred.
Version information
- Ubuntu 21.04
- Current
master
branch of Gtk @ 2e63b53b
Build configuration
graphene 1.10.7
Directories
prefix : /usr/local
libdir : lib/x86_64-linux-gnu
includedir : include
SIMD
SSE : YES
GCC vector : YES
ARM NEON : NO
Features
GObject types : YES
Introspection : NO
Build
Documentation : NO
Tests : YES
Installed tests: YES
gtk 4.5.0
Display backends: wayland
x11
Print backends : lpr
file
Media backends : gstreamer
Features
Vulkan support : False
Cloud support : False
Sysprof support : False
Colord support : False
Tracker support : False
Build
Debugging : True
Optimization : 2
Introspection : False
Documentation : False
Man pages : False
Tests : True
Install tests : False
Demos : True
Examples : True
Directories
prefix : /usr/local
includedir : /usr/local/include
libdir : /usr/local/lib/x86_64-linux-gnu
datadir : /usr/local/share
Subprojects
gi-docgen : NO python3 is missing modules: markdown, toml, typogrify
graphene : YES
mutest : YES
pango : YES
Additional information
This problem is not limited to GtkEntries, I can observe it also with GtkDropTargets on custom widgets. It seems, that the preferred GdkDragAction returned from the motion signal handler is somehow ignored on X11.
Can I provide any additional information which may be helpful?
Edit: Remove screenshots.
Edit2: Improve wording.
Edited by Simon Schneegans