If the icon happened to come from the drag site icon helper (ie. set through
gtk_drag_source_set_icon*), it would be referenced on the GtkDragInfo,
but not hooked into its context. This results on non visible drag windows,
until set_icon_helper() happened to be called on some path.
Add a gtk_drag_cancel() function that can be used on the
source side to cancel an ongoing drag operation. This can
be useful, e.g. if the data that is being dragged becomes
unavailable.
There was some X11-specific code before an early exit
in the functions that grab and ungrab keys during DND.
It seems to not cause a problem under Wayland, but moving
it out of the way seems right anyway.
This was forgotten when making DnD use a GtkGesture in the handlers
attached to the widget in gtk_drag_source_set(). The gesture must obey
the specified button mask, and switch to denied state if the pressed
button isn't part of the given mask.
https://bugzilla.gnome.org/show_bug.cgi?id=735965
Event controllers now auto-attach, and the GtkCapturePhase only determines
when are events dispatched, but all controllers are managed by the widget wrt
grabs.
All callers have been updated.
The propagation phase property/methods in GtkEventController are gone,
This is now set directly on the GtkWidget add/remove controller API,
which has been made private.
The only public bit now are the new functions gtk_gesture_attach() and
gtk_gesture_detach() that will use the private API underneath.
All callers have been updated.
This gesture is used by gtk_drag_source_set() to determine
whether dragging moved past the threshold. The gesture events
are handled via the usual ::event callbacks, so we don't mess
up with callers expecting that to happen in a signal handler.
If the sequence gets claimed somewhere else in the event widget
stack, the DnD gesture will be cancelled.
When making the entire window a drop target, as file-roller does,
we don't want to draw the drag highlight around the CSD window
decorations.
https://bugzilla.gnome.org/show_bug.cgi?id=728526
Please enter the commit message for your changes. Lines starting
When trying to drag, we currently the position of the first motion
event to determine where the drag came from. This might be alright
in the case of the old animation, but the data will be inaccurate
if the user has moved the pointer quite a bit since pressing the
cursor to start dragging. While we could monkey patch the GdkEvent
at the widget layer, this is unintuitive and strange.
Add a new API that takes a set of pointer coordinates describing
the origin of the drag. Additionally, adapt most widgets to use
it and use it with correct coordinates.
https://bugzilla.gnome.org/show_bug.cgi?id=705605
