The following patchset implements proper z-order for xdg surfaces in the kiosk
shell. For this it introduces to the kiosk shell the concept of a "surface
tree": a list of kiosk shell surface structures having a common ancestor (in
the xdg protocol sense).
The design is based on the following assumptions that the kiosk shell currently
makes:
- A kiosk surface with no parent must be fullscreen.
- If a parent is set on a kiosk surface, that surface is assigned the output of
the root kiosk surface. This means that all kiosk surfaces in a surface tree
will always have the same output.
- There is no possibility to minimize a kiosk surface.
With these in mind, the following design decisions were deemed convenient:
- For every output, at most one surface tree list will be active. This means
that, for a given output, only views belonging to surfaces of the same
surface tree will be in the normal layer. Moreover, all such views will be in
the normal layer if the surface tree list is active.
- The z-order of surface trees (the weston views' relative placement in the
normal layer) is determined by the placement of their corresponding kiosk
surface in the surface tree list.
Each kiosk shell surface begins its life as root of its own surface tree list.
Whenever a parent is set on a surface, that surface is linked to the surface
tree list of the root surface of the parent. If a parent kiosk shell surface is
destroyed, its children will keep the link to the root surface's surface tree
list. If the destroyed parent is also the root surface of the surface tree,
each child is unlinked from this root and they become the root of a new surface
tree.
This commit introduces to the kiosk_shell_surface structure the fields
'surface_tree_list', representing the surface tree list to which the surface is
linked at creation as its root, and 'surface_tree_link', the link to the
surface tree list.
Signed-off-by: Sergio Gómez <sergio.g.delreal@gmail.com>
When a new view gets activated, use weston_view_move_to_layer() for our
dance of moving views to the front.
Signed-off-by: Daniel Stone <daniels@collabora.com>
When we're switching between different active surfaces, use the new
weston_view_move_to_layer() helper.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Until now we've only had the unadorned arithmetic functions, but they're
easy to abuse and tedious to use.
For now, we just add weston_coord_global_add/sub functions and use them
where appropriate.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This is stored as an unadorned weston_coord internally, but with getter
functions we can put together the appropriate global or surface
coordinate.
Use them where appropriate.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Update users of the old coordinate space conversion functions that take
x, y pairs to the new weston_coord versions.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This doesn't really belong into shell-utils, so better move it out to
shared/config-parser. Renamed to weston_config_get_binding_modifier
to maintain the same namespace.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
These shell utils functions are potentially useful to other shells as
well, so make them widely available.
Renamed all functions to weston_shell_utils namespace.
No functional change, copied ad litteram.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
The activation of a view implies, among other things, a change in the
associated view layer which is initially unset. In order for this change
to be reflected in the corresponding surface's output mask, and hence
allow surface damage to trigger output repaints, we need to update the
view transform.
Fixes#674
Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
We are missing debug keybinds in kiosk-shell so install them. Adds
the binding-modifier like in desktop-shell in a helper.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
We're going to need this to properly send xwayland events later, so add
API to get the current x,y co-ordinates of a shell surface and add it to
the kiosk and desktop shells.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
shell-utils contains a number of helpers which are currently in use by
both desktop-shell and kiosk-shell. In order to extend this use to
fullscreen-shell as well (which can benefit from reusing the
weston_curtain infrastructure to be able to create solid-colour views
which may or may not be opaque, as well as one function within
fullscreen-shell which was copied wholesale to shell-utils), we need to
create a separate Meson dependency object, and avoid the existing
pattern of including the source from shared/ within the source list for
each shell.
This requires creating a new top-level directory for these shared helper
functions which are required by each shell, but are not part of
libweston in and of itself.
shell-utils depends on libweston-desktop; libweston-desktop depends on
libweston; libweston depends on shared.
Thus it is not possible to expose a dependency object from the shared/
directory which declares a dependency on the libweston-desktop
dependency, as Meson processes directories in order and resolves
variable references as they are parsed.
In order to break this deadlock, this commit creates a new top-level
directory called 'shell-utils' containing only this file, which can be
parsed by Meson after libweston-desktop (making the libweston-desktop
Meson dependency variable available to the build file to declare a
dependency on that), but before the shells (making the new Meson
depenendency object available to each shell which wishes to use it).
This commit contains no functional changes to any observable code.
Signed-off-by: Daniel Stone <daniels@collabora.com>
This will allow us to create a solid weston_buffer as well, since we
need to store that separately.
Signed-off-by: Daniel Stone <daniels@collabora.com>
desktop-shell's focus surfaces want to reuse this, but they don't want
to capture the input, instead allowing it to fall through.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Not all solid-colour views want to be opaque: sometimes we use them with
non-opaque alpha values in order to shade views underneath them.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Given that we have a struct for argument params, we might as well use it
rather than have them split between the struct and native params. For
consistency between the implementations, this also includes a shift from
float to int positioning for the base offset within the compositor's
global co-ordinate space.
Signed-off-by: Daniel Stone <daniels@collabora.com>
The name implied that it was a surface in and of itself, rather than
parameters used by a helper to create a surface and view.
Rename it now that we have weston_curtain as a name, and clean up
initialisers.
Signed-off-by: Daniel Stone <daniels@collabora.com>
create_solid_color_surface actually returns a weston_view that it
creates internally. Since weston_solid_color_view is long and dull,
rename it to weston_curtain.
Signed-off-by: Daniel Stone <daniels@collabora.com>
In multiple output cases, finding the succesor from the inactive layer
might result in picking the wrong view when there are multiple views
being stacked in the inactive layer. This adds two additional checks to
favor views on the same output as the one being destroyed/removed.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
This adds an additional check to make sure the current focus surface
is on the same output as the surface that is going to be activated.
This is necessary in order to avoid placing the currently focused one in
the inactive layer, which shouldn't happen in situations where the new
surface is going to be placed on a different output than the currently
focused one.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Some applications would set-up the app_id after the initial commit
(without a buffer) which is too late to correctly assign the application
to the corresponding output set-up in the configuration file.
This patch fixes that by checking one more time, after a buffer has been
attached, if indeed there's an output with an app_id set.
Fixes: #469
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Nothing special, but avoids hitting the warning about
terminating/finishing a layer with views on it.
Fixes#509.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
According to xdg-shell spec, if the surface doesn't cover the whole
output we should center it and install a border fill covering the rest
of the output.
While we center out the surface we never got around installing the
border fill. This patch re-uses the activation of a surface to control
this bit as well, by making use of an new layer to place the
surface while not being active.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
The seat_cap listener was to register a signal for keyboard_focus, which
we no longer use. Remove it entirely to avoid dead code.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Suggested-by: Derek Foreman <derek.foreman@collabora.com>
As kiosk-shell can't cope with multiple seat add a warning and avoid
creating any new seats. With it, this guards against potentially
receiving an invalid seat.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
With the seperation of surface activation and keyboard input, a special
corner case arose for child top-level windows when surfaces are being
destroyed. To make sure we never pick the wrong window to activate upon
destruction, we verify if the current focused surface is different than
the one being destroyed.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Just like desktop-shell, we shouldn't be dependent on having a keyboard
be present in order to activate a window/surface.
This adds a libweston helper to retrieve the first available seat, and
to use it in order to avoid going over the seat list.
We also encapsulate the activation of the surface in one place, and use
it on surface removal, when the surface has been committed, or for
touch/pointer events. With it we also deal with the keyboard focus and
shell activation in one place.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Fix a trivial typo, where the green channel was swapped with the blue
channel, resulting in rbg instead of rgb.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
This ensures the layers are torn down properly.
See commit: libweston: add weston_layer_fini()
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
desktop-shell's client is able to read-up from the config file, [shell]
section the background, but for kiosk-shell we don't actually have
client that does that, so instead allow the shell do that directly.
Seems to be a useful thing to have, as a default background color.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
When using xwayland surfaces and multiple outputs we need to notify
xwayland surface that the surface position has changed, otherwise we're
going to end up with pop-ups being displayed on other outputs rather
than the one were the main surface resides.
Stolen from desktop-shell.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Suggested-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Doing it when the surface is being added would cause clients that
wait for frame callbacks to wait indefinitely as the surface being
activated is not yet, committed.
Fixes: #473
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
kiosk_shell_destroy() will free up weston_desktop, but still keeping
listeners set-up (keyboard/seat/caps), which will fire
when the the compositor is stopped/shutdown by clients still connected.
This patch maintains a list of seats and uses it to remove any listeners
when calling kiosk_shell_destroy(). desktop-shell and ivi-shell do not
appear to be using weston_desktop_destroy() in their respective destroy
parts.
This avoids an illegal access happening when calling one of the
listeners, after weston_desktop has been free'ed, like the following:
==2002== at 0x10F3F8FD: weston_desktop_get_display (libweston-desktop.c:125)
==2002== by 0x10F450A7: weston_desktop_xdg_surface_schedule_configure (xdg-shell.c:1022)
==2002== by 0x10F44793: weston_desktop_xdg_toplevel_set_activated (xdg-shell.c:643)
==2002== by 0x10F41AA5: weston_desktop_surface_set_activated (surface.c:468)
==2002== by 0x10F32E7E: kiosk_shell_seat_handle_keyboard_focus (kiosk-shell.c:329)
==2002== by 0x4A726A7: wl_signal_emit (wayland-server-core.h:478)
==2002== by 0x4A75BD1: weston_keyboard_set_focus (input.c:1586)
==2002== by 0x4A776FE: notify_keyboard_focus_out (input.c:2314)
==2002== by 0x5902BC1: udev_seat_destroy (libinput-seat.c:469)
==2002== by 0x59028C5: udev_input_destroy (libinput-seat.c:375)
==2002== by 0x58F0449: drm_destroy (drm.c:2571)
==2002== by 0x4A6EE39: weston_compositor_destroy (compositor.c:7814)
==2002== Address 0x10bd1780 is 0 bytes inside a block of size 152 free'd
==2002== at 0x48399AB: free (vg_replace_malloc.c:538)
==2002== by 0x10F3F8DA: weston_desktop_destroy (libweston-desktop.c:112)
==2002== by 0x10F34357: kiosk_shell_destroy (kiosk-shell.c:1009)
==2002== by 0x4A5F618: wl_signal_emit (wayland-server-core.h:478)
==2002== by 0x4A6EE06: weston_compositor_destroy (compositor.c:7809)
==2002== by 0x4855548: wet_main (main.c:3420)
==2002== by 0x109154: main (executable.c:33)
==2002== Block was alloc'd at
==2002== at 0x483AB65: calloc (vg_replace_malloc.c:760)
==2002== by 0x10F3F681: zalloc (zalloc.h:38)
==2002== by 0x10F3F724: weston_desktop_create (libweston-desktop.c:65)
==2002== by 0x10F34458: wet_shell_init (kiosk-shell.c:1045)
==2002== by 0x484F83D: wet_load_shell (main.c:924)
==2002== by 0x48552D3: wet_main (main.c:3361)
==2002== by 0x109154: main (executable.c:33)
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
kiosk-shell is fullscreen shell for apps that use the xdg-shell
protocol. The goal is to make life easier for people shipping embedded
devices with simple fullscreen shell requirements, and reduce the
proliferation of desktop-shell hacks.
Top level surfaces are made fullscreen, whereas dialogs are placed on
top in the center of the output and retain their natural sizes. Dialogs
can be moved and (un)maximized, but resizing is currently not supported.
An app can be directed to a particular output by populating the
"app-ids" field with the app's XDG app id, in the relevant
"[output]" section in the weston config file.
Fixes: #277
Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
