wayland: implement support for plugin modality

Calling XIGrabDevice has no effect under wayland, because the
xserver is getting events from us. Instead, we need to use our
own interfaces for grabs.
At the same time, we can simplify the public API, as plugins
should always listen for events using clutter.

https://bugzilla.gnome.org/show_bug.cgi?id=705917
This commit is contained in:
Giovanni Campagna
2013-08-13 16:51:33 +02:00
parent 59b274f12f
commit 7eb4bfbea3
5 changed files with 291 additions and 44 deletions

View File

@@ -274,6 +274,29 @@ static const MetaWaylandKeyboardGrabInterface
default_grab_modifiers,
};
static void
modal_key (MetaWaylandKeyboardGrab *grab,
uint32_t time,
uint32_t key,
uint32_t state)
{
}
static void
modal_modifiers (MetaWaylandKeyboardGrab *grab,
uint32_t serial,
uint32_t mods_depressed,
uint32_t mods_latched,
uint32_t mods_locked,
uint32_t group)
{
}
static MetaWaylandKeyboardGrabInterface modal_grab = {
modal_key,
modal_modifiers,
};
gboolean
meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard,
struct wl_display *display,
@@ -515,13 +538,29 @@ meta_wayland_keyboard_set_focus (MetaWaylandKeyboard *keyboard,
display = wl_client_get_display (client);
serial = wl_display_next_serial (display);
wl_keyboard_send_modifiers (resource, serial,
keyboard->modifier_state.mods_depressed,
keyboard->modifier_state.mods_latched,
keyboard->modifier_state.mods_locked,
keyboard->modifier_state.group);
wl_keyboard_send_enter (resource, serial, surface->resource,
&keyboard->keys);
/* If we're in a modal grab, the client is focused but doesn't see
modifiers or pressed keys (and fix that up when we exit the modal) */
if (keyboard->grab->interface == &modal_grab)
{
struct wl_array empty;
wl_array_init (&empty);
wl_keyboard_send_modifiers (resource, serial,
0, 0, 0, 0);
wl_keyboard_send_enter (resource, serial, surface->resource,
&empty);
}
else
{
wl_keyboard_send_modifiers (resource, serial,
keyboard->modifier_state.mods_depressed,
keyboard->modifier_state.mods_latched,
keyboard->modifier_state.mods_locked,
keyboard->modifier_state.group);
wl_keyboard_send_enter (resource, serial, surface->resource,
&keyboard->keys);
}
wl_resource_add_destroy_listener (resource, &keyboard->focus_listener);
keyboard->focus_serial = serial;
}
@@ -565,3 +604,72 @@ meta_wayland_keyboard_release (MetaWaylandKeyboard *keyboard)
wl_list_remove (&keyboard->focus_listener.link);
wl_array_release (&keyboard->keys);
}
gboolean
meta_wayland_keyboard_begin_modal (MetaWaylandKeyboard *keyboard,
guint32 timestamp)
{
MetaWaylandKeyboardGrab *grab;
uint32_t *end = (void *) ((char *) keyboard->keys.data +
keyboard->keys.size);
uint32_t *k;
uint32_t serial;
if (keyboard->grab != &keyboard->default_grab)
return FALSE;
if (keyboard->focus)
{
/* Fake key release events for the focused app */
serial = wl_display_next_serial (keyboard->display);
keyboard->grab->interface->modifiers (keyboard->grab,
serial,
0, 0, 0, 0);
for (k = keyboard->keys.data; k < end; k++)
keyboard->grab->interface->key (keyboard->grab,
timestamp,
*k, 0);
}
grab = g_slice_new0 (MetaWaylandKeyboardGrab);
grab->interface = &modal_grab;
meta_wayland_keyboard_start_grab (keyboard, grab);
return TRUE;
}
void
meta_wayland_keyboard_end_modal (MetaWaylandKeyboard *keyboard,
guint32 timestamp)
{
MetaWaylandKeyboardGrab *grab;
uint32_t *end = (void *) ((char *) keyboard->keys.data +
keyboard->keys.size);
uint32_t *k;
uint32_t serial;
grab = keyboard->grab;
g_assert (grab->interface == &modal_grab);
meta_wayland_keyboard_end_grab (keyboard);
g_slice_free (MetaWaylandKeyboardGrab, grab);
if (keyboard->focus)
{
/* Fake key press events for the focused app */
serial = wl_display_next_serial (keyboard->display);
keyboard->grab->interface->modifiers (keyboard->grab,
serial,
keyboard->modifier_state.mods_depressed,
keyboard->modifier_state.mods_latched,
keyboard->modifier_state.mods_locked,
keyboard->modifier_state.group);
for (k = keyboard->keys.data; k < end; k++)
keyboard->grab->interface->key (keyboard->grab,
timestamp,
*k, 1);
}
}