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desktop: Make popup grab follow keyboard focus semantics

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A popup grab is specified to have the top most popup surface gain
keyboard focus. This means the keyboard focus should always follow the
most recent xdg_popup.grab() surface. Make sure this happens by keeping
track of the parent surface in the libweston-desktop popup grab,
updating the keyboard focus when surfaces are added and removed from the
popup chain, and restoring the keyboard focus to the toplevel when there
are no popups anymore.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
This commit is contained in:
Jonas Ådahl 2019-01-22 09:50:41 +01:00 • committed by Daniel Stone
parent cc3d30c28b
commit 8f4b141299
5 changed files with 63 additions and 4 deletions
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2
libweston/desktop/internal.h
View file

@ -218,6 +218,7 @@ void
weston_desktop_surface_unset_relative_to(struct weston_desktop_surface *surface);
void
weston_desktop_surface_popup_grab(struct weston_desktop_surface *popup,
struct weston_desktop_surface *parent,
struct weston_desktop_seat *seat,
uint32_t serial);
void
@ -230,6 +231,7 @@ struct weston_desktop_surface *
weston_desktop_seat_popup_grab_get_topmost_surface(struct weston_desktop_seat *seat);
bool
weston_desktop_seat_popup_grab_start(struct weston_desktop_seat *seat,
struct weston_desktop_surface *parent,
struct wl_client *client, uint32_t serial);
void
weston_desktop_seat_popup_grab_add_surface(struct weston_desktop_seat *seat,

60
libweston/desktop/seat.c
View file

@ -47,6 +47,8 @@ struct weston_desktop_seat {
bool initial_up;
struct wl_client *client;
struct wl_list surfaces;
struct weston_desktop_surface *grab_surface;
struct wl_listener grab_surface_destroy_listener;
} popup_grab;
};
@ -293,8 +295,19 @@ weston_desktop_seat_popup_grab_get_topmost_surface(struct weston_desktop_seat *s
return weston_desktop_surface_from_grab_link(grab_link);
}
static void
popup_grab_grab_surface_destroy(struct wl_listener *listener, void *data)
{
struct weston_desktop_seat *seat =
wl_container_of(listener, seat,
popup_grab.grab_surface_destroy_listener);
seat->popup_grab.grab_surface = NULL;
}
bool
weston_desktop_seat_popup_grab_start(struct weston_desktop_seat *seat,
struct weston_desktop_surface *parent,
struct wl_client *client, uint32_t serial)
{
assert(seat == NULL || seat->popup_grab.client == NULL ||
@ -317,8 +330,18 @@ weston_desktop_seat_popup_grab_start(struct weston_desktop_seat *seat,
seat->popup_grab.client = client;
if (keyboard != NULL &&
keyboard->grab->interface != &weston_desktop_seat_keyboard_popup_grab_interface)
keyboard->grab->interface != &weston_desktop_seat_keyboard_popup_grab_interface) {
struct weston_surface *parent_surface;
weston_keyboard_start_grab(keyboard, &seat->popup_grab.keyboard);
seat->popup_grab.grab_surface = parent;
parent_surface = weston_desktop_surface_get_surface(parent);
seat->popup_grab.grab_surface_destroy_listener.notify =
popup_grab_grab_surface_destroy;
wl_signal_add(&parent_surface->destroy_signal,
&seat->popup_grab.grab_surface_destroy_listener);
}
if (pointer != NULL &&
pointer->grab->interface != &weston_desktop_seat_pointer_popup_grab_interface)
@ -349,9 +372,18 @@ weston_desktop_seat_popup_grab_end(struct weston_desktop_seat *seat)
}
if (keyboard != NULL &&
keyboard->grab->interface == &weston_desktop_seat_keyboard_popup_grab_interface)
keyboard->grab->interface == &weston_desktop_seat_keyboard_popup_grab_interface) {
struct weston_desktop_surface *grab_desktop_surface;
struct weston_surface *grab_surface;
weston_keyboard_end_grab(keyboard);
grab_desktop_surface = seat->popup_grab.grab_surface;
grab_surface =
weston_desktop_surface_get_surface(grab_desktop_surface);
weston_keyboard_set_focus(keyboard, grab_surface);
}
if (pointer != NULL &&
pointer->grab->interface == &weston_desktop_seat_pointer_popup_grab_interface)
weston_pointer_end_grab(pointer);
@ -361,15 +393,27 @@ weston_desktop_seat_popup_grab_end(struct weston_desktop_seat *seat)
weston_touch_end_grab(touch);
seat->popup_grab.client = NULL;
if (seat->popup_grab.grab_surface) {
seat->popup_grab.grab_surface = NULL;
wl_list_remove(&seat->popup_grab.grab_surface_destroy_listener.link);
}
}
void
weston_desktop_seat_popup_grab_add_surface(struct weston_desktop_seat *seat,
struct wl_list *link)
{
struct weston_desktop_surface *desktop_surface;
struct weston_surface *surface;
assert(seat->popup_grab.client != NULL);
wl_list_insert(&seat->popup_grab.surfaces, link);
desktop_surface =
weston_desktop_seat_popup_grab_get_topmost_surface(seat);
surface = weston_desktop_surface_get_surface(desktop_surface);
weston_keyboard_set_focus(seat->popup_grab.keyboard.keyboard, surface);
}
void
@ -380,8 +424,18 @@ weston_desktop_seat_popup_grab_remove_surface(struct weston_desktop_seat *seat,
wl_list_remove(link);
wl_list_init(link);
if (wl_list_empty(&seat->popup_grab.surfaces))
if (wl_list_empty(&seat->popup_grab.surfaces)) {
weston_desktop_seat_popup_grab_end(seat);
} else {
struct weston_desktop_surface *desktop_surface;
struct weston_surface *surface;
desktop_surface =
weston_desktop_seat_popup_grab_get_topmost_surface(seat);
surface = weston_desktop_surface_get_surface(desktop_surface);
weston_keyboard_set_focus(seat->popup_grab.keyboard.keyboard,
surface);
}
}
WL_EXPORT void

3
libweston/desktop/surface.c
View file

@ -849,12 +849,13 @@ weston_desktop_surface_unset_relative_to(struct weston_desktop_surface *surface)
void
weston_desktop_surface_popup_grab(struct weston_desktop_surface *surface,
struct weston_desktop_surface *parent,
struct weston_desktop_seat *seat,
uint32_t serial)
{
struct wl_client *wl_client =
weston_desktop_client_get_client(surface->client);
if (weston_desktop_seat_popup_grab_start(seat, wl_client, serial))
if (weston_desktop_seat_popup_grab_start(seat, parent, wl_client, serial))
weston_desktop_seat_popup_grab_add_surface(seat, &surface->grab_link);
else
weston_desktop_surface_popup_dismiss(surface);

1
libweston/desktop/xdg-shell-v6.c
View file

@ -850,6 +850,7 @@ weston_desktop_xdg_popup_protocol_grab(struct wl_client *wl_client,
popup->seat = seat;
weston_desktop_surface_popup_grab(popup->base.desktop_surface,
popup->parent->desktop_surface,
popup->seat, serial);
}

1
libweston/desktop/xdg-shell.c
View file

@ -955,6 +955,7 @@ weston_desktop_xdg_popup_protocol_grab(struct wl_client *wl_client,
popup->seat = seat;
weston_desktop_surface_popup_grab(popup->base.desktop_surface,
popup->parent->desktop_surface,
popup->seat, serial);
}