We had code in gtkwindow.c that generated duplicate,
and defective, focus-change events, in the following
way:
- gtkmain.c generates a chain of focus-change events
for moving focus from one window to another
- gtkwindow.c catches a focus-in event in the middle
of this chain and sets itself as 'active'
- and then it proceeds to generate focus-change
events towards its own focus widget without a
related target
This is not necessary since we gtkmain.c already
generates a complete sequence of focus-change events.
So stop doing it.
Export gtk_widget_root/unroot privately,
make them work on roots, and use them in
gtk_window_set_display. This gets us to a
single way to listen for display changes,
the root property.
When a modal dialog is smaller than its parent,
we were keeping the resize cursor from the dialogs
edge all over the parent window, which looks
really irritating, since the resize cursors are
closely associated with the window edge. Fix
this by falling back to the default cursor
outside the grab widgets surface.
Closes: https://gitlab.gnome.org/GNOME/gtk/issues/23
Set the cursor on the surface of the target
widget, not the surface of some of its parents.
This does not make a difference currently.
But it will in the future, when we have
parented widgets with surfaces.
Activating this action will replace other
activate_default apis. It is more flexible,
since intermediate widgets can intercept the
action and do their own handling.
This api wasn't used anywhere in GTK. And since
we've dropped the variant for the default widget,
this one should go too. If it is needed, it should
become and action too.
The skip-taskbar, skip-pager and urgency hints were
only ever implemented for X11, and are not very useful
with modern desktops. Relegate the functionality to
x11 backend api, and drop the GtkWindow api.
This will be used to let the inspector and other users
pick insensitive widgets again. For now, update all
callers to pass no flags, preserving the current
behavior.
...and the setter/getter for it.
This is a very old X session management thing, and you
will be hard-pressed to find a session manager that can
make use of it, and even harder-pressed to find apps
using it to their advantage.
Change the all the begin_drag and begin_move apis in
GdkSurface and GtkWindow to expect surface coordinates.
Update the x11 implementation to translate to root
coordinates where it matters. Wayland is ignoring the
coordinates anyway.
When the window gets active / inactive, we
don't propagate events, but just send focus-in / -out
to the current focus_widget. Improve this by updating
its state flags as well.
Emit focus change events in the same way as crossing events.
Also change the code to only emit focus change events for
the master keyboard - we only maintain a single focus location,
so sending multiple focus change events for different devices
seems confusing.
GtkWindow has a focus_widget that points to the current input focus.
GtkWidget has a focus_child that points to the child that contains
the input focus. Following the focus_child chain from the toplevel
always leads to the focus_widget. We never unset focus_child, we only
set it. We bubble focus change events.
After considerable discussion, we came to the conclusion
that the convenience of this API wins over the correctness
of gtk_window_present_with_time(), in particular since we
don't have a good mechanism to carry timestamps from the
events to the places where we present windows.
When 0 or GDK_CURRENT_TIME is passed to gtk_window_present_with_time(),
print a warning so that the application developer knows that this isn't
a supported use of the function, but carry on working for now.
Previously, those numbers stored the values relative to the margin box
of the widget. Now they store values relative to the content box,
thereby getting rid of the last remains of weird coordinate systems.
Instead of recording the way up from the target widget to the grab
widget (or toplevel) and then walking that path upwards, just walk the
parent chain and look at the cursor.
I was stuck in an X session and noticed that my resize corners
all got east or north cursors. It turns out that gnome-shell
does not properly advertise support for edge constraints under X11,
and the absence of that makes the code for determining the edge
under the cursor misbehave.
This change should fix that.
The code gets rid of the GtkTreeView and replaces it with a GtkListBox.
Most of the logic is now done via GListModel subclasses.
A big change is that this new list is now tracking updates itself and
doesn't need to be manually updated. All code that used to cause rescans
or add forgotten objects to the tree has been removed.
If objects are missing from the object tree, the logic for tracking them
needs to be added.
CSD titlebar are included in the focus-chain. The logic used makes sure that the
initial focus avoids the titlebar, but tabbing around will eventually get there.
This logic fails in case the window has no other focusable widgets apart from
the ones in the header-bar. If this happens keynav focus will be lost. To handle
the above scenario, we need to fallback to focus the header-bar (if any).
Fixes: https://gitlab.gnome.org/GNOME/gnome-software/issues/404
The previous attempt at removing configure events entirely
was causing some dialogs not to show up under Wayland.
Presumably due to ordering issues with emitting ::size-change
out of the backend.
Instead, keep configure events in the event queue, but handle
them on the gdk side. This keeps the ordering intact, while
still removing configure events from the api. The dialogs
show up now.
The opaque region is only set when the background color is opaque. So
we need to do something about it when the background color changes.
However, in the case where a size allocation is going to happen, we
already do this update in size_allocate(), so in that case avoid doing
it twice.
We still need a drag gesture both on front (capture) and back (bubble)
to handle dragging from both the GtkWindow widget and chrome in the
headerbar. But we can do it through 2 drag gestures, instead of special
event handling code.
In particular, this patch removes:
gdk_surface_get_events()
gdk_surface_set_events()
gdk_surface_get_device_events()
gdk_surface_set_device_events()
Event masks so far still exist for grabs.
