According to the XEmbed specification, a window should be created
"elsewhere" and then reparented into the target parent window. Instead,
GTK+ creates the window directly in desired target parent window. This
allows some races to occur.
Another program that does not follow XEmbed is tabbed. XEmbed requires
an _XEMBED_INFO property on the to-be-embedded window, but tabbed does
not check for this property. Thus, as soon as GTK+ creates its window,
tabbed starts managing this window and now GTK+ setting up the window
races with tabbed starting to manage the window.
If tabbed is fast enough to map the window, GTK+ never sees a MapNotify
event, because it did not yet select StructureNotifyMask on its window.
This results in a black window inside of tabbed.
Note that this cannot really be fixed in tabbed, since XEmbed says that
the _XEMBED_INFO property must be already present when the window
appears. Thus, patching tabbed to wait for _XEMBED_INFO to appear is not
something that the spec requires/allows.
Instead, this commit changes GTK+ so that it directly sets the right
event mask when the window is created. This means that there is no more
race between tabbed mapping the window and GTK+ selecting
StructureNotifyMask.
Note that the proper fix would be to do as XEmbed requires: Create the
window elsewhere and then reparent it into the target window. However,
that would require a more invasive patch, so this commit only takes the
"easy approach" of fixing this one race. Hopefully, all the other races
that can occur during window setup are harmless, because the
embedder/socket will hopefully watch for PropertyNotify events as
needed.
Fixes: https://gitlab.gnome.org/GNOME/gtk/issues/757
See-also: https://github.com/awesomeWM/awesome/issues/2385
Signed-off-by: Uli Schlachter <psychon@znc.in>
In 01455399e8 ("gdk: do not deactivate surface on keyboard grabs"), we
made gdk avoid deactivating surfaces when another application takes a
keyboard grab, by using has_focus_window instead of has_focus. That however
broke activating surfaces when the gdk application acquired a grab itself,
in which case has_focus_window is false but has_focus is true.
We thus actually need to use both: surfaces should be activated either
because we have normal keyboard focus, or because we grabbed the keyboard.
This also renames HAS_FOCUS to APPEARS_FOCUSED to better reflect its
role.
Fixes#85
(cherry picked from commit 3287ac96e02ff236d74db10164c5b0c1e7b2b0bf)
When pressing e.g. a window manager shortcut, which acquires keyboard grab,
Xorg would send FocusOut NotifyGrab then FocusIn NotifyUngrab. Currently
gdk would then deactivate the current surface, which makes accessibility
screen readers think that we have switched to a non-accessible application
and came back again, and thus reannounce the application frame etc. which we
don't want when e.g. just raising volume.
And actually, receiving FocusOut NotifyGrab does not mean losing the
X focus, it only means an application aqcuired a grab, i.e. it is
temporarily stealing keyboard events. On Wayland, this isn't even
notified actually.
This commit makes gdk only deactivate surfaces when there was an actual
focus switch to another window, as determined by has_focus_window (instead
of just has_focus), which happens either normally through FocusOut with
NotifyNormal, or during grabs through FocusOut with NotifyWhileGrabbed.
Fixes#85
(cherry picked from commit 01455399e8)
Epoxy 1.4 has new ad hoc API that we can use to check whether GLX is
available on the current system.
If we didn't use this API, we'd have to manually dlopen libGL (or its
equivalent on different OSes) and check if it had GLX symbols; since
Epoxy already does all of this internally, we can simply ask it instead.
https://bugzilla.gnome.org/show_bug.cgi?id=775279
(cherry picked from commit 02eb344950)
Signed-off-by: Emmanuele Bassi <ebassi@gnome.org>
When asked for a nonexistent (positive) monitor number,
gdk_x11_display_get_monitor would (at best) return an uninitialized pointer,
instead of returning NULL.
https://gitlab.gnome.org/GNOME/gtk/merge_requests/107
This state flag is used in several places in GTK+, for example to
ignore RESIZE_INC hints if tiled. Setting it is also necessary for
backwards compatibility with applications that changed their behaviour
when tiled, such as GNOME Terminal and its MATE fork.
Signed-off-by: Simon McVittie <smcv@debian.org>
https://bugzilla.gnome.org/show_bug.cgi?id=789357
Commit c415bef5de introduced support for the new _GTK_EDGE_CONSTRAINTS
atom. If the compositor supports that atom, however, we were always
setting the tiled state, even if no actual tiling information is
available, where the correct action is to completely remove any traces
of the tiled state.
Fix that by correctly removing the tiled state when compositor supports
_GTK_EDGE_CONSTRAINTS Xatom.
https://bugzilla.gnome.org/show_bug.cgi?id=788516
Following the previous patch, where edge constraints support
was added to the Wayland backend, this patch introduces the
necessary code to handle the _GTK_EDGE_CONSTRAINTS atom from
X11 backend.
https://bugzilla.gnome.org/show_bug.cgi?id=783669
Under X, we were not setting the right drag cursor initially,
because at current_action == action == 0, initially. Fix this
by explicitly using the right cursor when grabbing.
This property contains 5 integers, of which the last 2 respectively
contain the tool serial number and tool ID. We were only extracting the
first so far, but GdkDeviceTool also has API getters for the latter,
which remained 0.
https://bugzilla.gnome.org/show_bug.cgi?id=786400
Wacom tablets often have a "pad" device which houses multiple buttons. At
present, these devices are incorrectly marked as GDK_SOURCE_PEN which can
cause problems for some software.
https://bugzilla.gnome.org/show_bug.cgi?id=782040
Otherwise we wait for the next gdk_drag_motion() call, which will
happen on the next motion event, making the drag window briefly visible
on the 0,0 root coordinates.
https://bugzilla.gnome.org/show_bug.cgi?id=778203
The monitors are already in scaled pixels, so scaling again when retrieving
the screen size is wrong.
With GDK_SCALE unset, the initial monitor sizes are unscaled, and when the
xsettings client sets a scale > 1, the monitor sizes should be updated.
The end result is that the monitor sizes start out wrong, and get
corrected on the first xrandr event, while the screen size starts out
right and becomes wrong after the event.
This patch fixes Firefox misplacing menus and popovers when the xrandr
configuration changes while it is running.
Fix for the X11 side of
https://bugzilla.gnome.org/show_bug.cgi?id=772202
This way we can recommend that applications use the
fullscreen_on_monitor() API on both X and Wayland otherwise they'd
have to keep a path for each backend to achieve this functionality.
https://bugzilla.gnome.org/show_bug.cgi?id=773857
RandR 1.5 is enabled on VirtualBox guest of Fedora 25 but
XRROutputInfo->name is "default". If init_randr15() does not
return TRUE, the monitor size sets 0 because gdk_screen_get_width()
returns 0.
This problem causes GtkStatusIcon not to show the activate menu.
https://bugzilla.gnome.org/show_bug.cgi?id=771033
There was a return between a push/pop of an error trap, and
this managed to trigger the 'unpopped trap' warning in the
displayclose test now. Fix this.
The GdkDragContext should only listen to GDK_GRAB_BROKEN events sent to
its own pointer device. It turns out that the passive key grabs mistake
GDK into sending a GdkEventGrabBroken on the master keyboard, which the
DnD machinery mistakes as a signal to cancel the operation.
https://bugzilla.gnome.org/show_bug.cgi?id=766442
The active keyboard grab can be spared then. This way the passive
key grabs allow other key combinations (eg. alt-tab) that are not
mandatory to grab here.
Always associate a drag context with a GdkDisplay and use that when
getting a cursor for a given action.
If we don't do this, dragging on a window that doesn't use the default
display will make us use cursors from the wrong display.
https://bugzilla.gnome.org/show_bug.cgi?id=765565
