terminal_init_tabs() needs an accurate terminal->width to be able
to correctly initialize the tab ruler.

This makes sure we pop down popups when the X backend loses keyboard
focus or when the kms backend vt-switches away.

It's possible for a pointer's focus to be null, e.g. because
the focus surface has been bestroyed. Prevent a crash when
that happens and a client takes too long to respond to a ping.

Signed-off-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>

We used to have to composite the pointer on top of the drag icon, but
the final protocol allows us to specify both a drag icon and a cursor.
Remove the complexity that dealt with that.

with the previous patch the resource isn't used inside weston_surface_destroy()
anymore (aside sending events unuseful for a closing client), so we can safely
reset it.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Bryce Harrington <b.harrington@samsung.com>

If the environment variable WESTON_TEST_CLIENT_PATH is not set, do not
quit Weston in the test plugin.

This allows one to start Weston with the test plugin manually, and then
run any tests also manually, while observing Weston's behaviour over
time. This is useful for:
- Running a test multiple times and checking if Weston leaks (e.g. with
  Valgrind)
- Running tests manually on a backend that is not x11 or wayland,
  especially the backends that require weston-launch, and therefore
  cannot be used with the 'make check' machinery.

This change should not affect 'make check' behaviour, because there
WESTON_TEST_CLIENT_PATH is always set.

Cc: U. Artie Eoff <ullysses.a.eoff@intel.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

This tests the wl_shm buffer access wrappers, that are supposed to catch
the invalid accesses to a memory-mapped file beyond EOF.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

Set errno and return -1 in public API calls like all other weston code
does. Most systemd+dbus calls return negative error-codes instead of -1
and setting errno. Thus, we need to explicitly set errno before returning.

Also note that we must set errno _after_ the cleanup path. Calling
functions like close() in the cleanup path might overwrite errno (which is
not what we want). So protect errno until the final return -1;

The gcc built-in 'bool' type is not the same size as dbus_bool_t, which is
an uint32_t.  Passing a pointer to bool where dbus expects a uint32_t *
doesn't work.

Reviewed-by: David Herrmann <dh.herrmann@gmail.com>

with the surface ref-count feature a surface may live on after its
resource was destroyed. so listen for the resource destroy signal
and set the focus to NULL.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

Use a switch for this and don't fall back to XRGB8888 if we don't
recognize the format.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>

Without this, weston will segfault whenever the focus is a non-client
surface such as the black surface in fullscreen.

When a renderer switch happens, it is possible that when the surface
state is created, a buffer for the given surface is already available.
In that case, run the attach routine so that the pixel contents are
properly set. Otherwise, it would only be set when a new attach request
is made for that surface.

Also, change the drm backend so that it keeps the buffer reference in
the weston_surface when running with the pixman renderer. The pixman
renderer keeps a reference to it anyway, so it is never released
early.

This makes the renderer transition seamless, without leaving a black
screen as before.

When running with the pixman renderer, the debug binding 'W'
(mod-shift-space W) will cause the compositor to load gl-renderer.so
and start using it instead of the pixman renderer.

If you opened a window with sub-surfaces, and then raised another window
on top of that, the underlaying window's main surface was stacked
properly, but the sub-surfaces remained on top of the raised window.
IOW, the raised window was in between the other window and its
sub-surfaces.

This got broken in a7af7043, "Split the
geometry information from weston_surface out into weston_view".

Fix the issues:

In view_list_add_subsurface_view(), the views need to be added to the
end of the list, not to the head. This alone fixes the above problem,
but causes the sub-surface views to be stacked irrespective of their
surface stacking order. The stacking order in this test case is fixed by
the changes to view_list_add(), but for sub-sub-surfaces a similar
change is needed in view_list_add_subsurface_view() too.

In view_list_add(), build the view list in the sub-surface stacking
order, instead of pulling the parent surface always on top. Also handle
the case, when the subsurface_list is completely empty: the parent
surface's view must still be added.

Reported-by: Julien Isorce <julien.isorce@collabora.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Cc: Jason Ekstrand <jason@jlekstrand.net>

This is necessary since commit 1959ab.

Otherwise we crash when animating the view.

Signed-off-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>

This causes the surface to get the keyboard focus, which in turn
causes focus-animation to nicely work with exposay, making the
not focused surfaces to be dimmed.

Signed-off-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>

Otherwise we'll crash when cancel is called.

Signed-off-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>

Signed-off-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>

If a view which has focus is destroyed, we would send a leave
event while changing focus, causing a segfault. Prevent this
by listening to the view's destroy signal and removing it from
the pointer focus.

Signed-off-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>

Exposay provides window overview functions which, when a key which
produces the binding modifier is pressed on its own, scales all
currently-open windows down to be shown overlaid on the desktop,
providing keyboard and mouse navigation to be able to switch window
focus.

[pochu: rebased, ported to weston_view]

Add an animation which moves a surface to a new location, at the same
time as also rescaling it to a different size from the origin, rather
than the existing scale animation which resizes from the centre.

[pochu: rebased, ported to weston_view]

Add the ability to bind to modifiers; the binding is armed when a key
which sets the requested modifier is pressed, and triggered if the key
is released with no other keys having been pressed in the meantime, as
well as mouse buttons or scroll axes.

This only works for direct modifiers (e.g. Shift and Alt), not modifiers
which latch or lock.

[pochu: rebased]

When enabled, this will make all but the keyboard-focused window dim.
Also the background gets dimmed, if there are any windows open. The
panel is not dimmed.

When the keyboard focus changes, the change in dimming is animated.

The dimming is implemented with transparent solid-color surfaces, two at
most. The net effect of two overlapping dim surfaces is kept constant
during animations (stable fade animation).

There is a new weston.ini option "focus-animation", that defaults to
none, and can be set to "dim-layer" to enable the focus change
animation.

[pq: Sliced, squashed, and rebased the patch series. Fixed surface alpha
interaction with the switcher. Wrote the commit message.]

[pochu: rebased, ported to weston_view]

The opaque region is not set when we start the nested
compositor fullscreen. This patch fixes this.

Signed-off-by: Axel Davy <axel.davy@ens.fr>

This reverts commit 2396aec6.

This exact version of the sub-surface protocol has been copied into
Wayland core. Therefore it must be removed from here to avoid build
conflicts and useless duplication.

No other changes to sub-surface protocol consumers are needed, the
identical API is now offered by libwayland-client and libwayland-server.

The commit adding sub-surfaces to Wayland is:
Author: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

    protocol: add sub-surfaces to the core

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

This allows specifying a particular backend to load in a manner similar to
modules.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>

this allows to implement pointer barriers by using a custom handler

The signal will be emitted after the pointer is moved. A shell plugin
can listen to the signal and activate certain effects when the pointer
touches the screen corners, for instance.

weston_view_update_transform() will post damage in the old and new
positions of the view and thus make sure we always repaint properly.
In particular, in bug 66133, the test suite moves the surface off
any output and weston_surface_schedule_repaint() in commit fails to
do anything, since the surface is not on any output.

After changing view geometry, we have to either call
weston_compositor_schedule_repaint(), which is what shell.c typically
does, though that repaints all outputs, or call
weston_view_update_transform() to force update the transformation
and queue repaints on affected outputs.

https://bugs.freedesktop.org/show_bug.cgi?id=66133

We always want a repaint if the view was damaged or changed.  In
particular, we want weston_view_update_transform() to schedule a
repaint for the old and new position if we change the view transform.

We want to remove support for these deprecated interfaces. Since
nothing is using them, this is a simple change.