weston/libweston-desktop/seat.c

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/*
* Copyright © 2010-2012 Intel Corporation
* Copyright © 2011-2012 Collabora, Ltd.
* Copyright © 2013 Raspberry Pi Foundation
* Copyright © 2016 Quentin "Sardem FF7" Glidic
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include <assert.h>
#include <wayland-server.h>
#include "compositor.h"
#include "zalloc.h"
#include "libweston-desktop.h"
#include "internal.h"
struct weston_desktop_seat {
struct wl_listener seat_destroy_listener;
struct weston_seat *seat;
struct {
struct weston_keyboard_grab keyboard;
struct weston_pointer_grab pointer;
struct weston_touch_grab touch;
bool initial_up;
struct wl_client *client;
struct wl_list surfaces;
} popup_grab;
};
static void weston_desktop_seat_popup_grab_end(struct weston_desktop_seat *seat);
static void
weston_desktop_seat_popup_grab_keyboard_key(struct weston_keyboard_grab *grab,
uint32_t time, uint32_t key,
enum wl_keyboard_key_state state)
{
weston_keyboard_send_key(grab->keyboard, time, key, state);
}
static void
weston_desktop_seat_popup_grab_keyboard_modifiers(struct weston_keyboard_grab *grab,
uint32_t serial,
uint32_t mods_depressed,
uint32_t mods_latched,
uint32_t mods_locked,
uint32_t group)
{
weston_keyboard_send_modifiers(grab->keyboard, serial, mods_depressed,
mods_latched, mods_locked, group);
}
static void
weston_desktop_seat_popup_grab_keyboard_cancel(struct weston_keyboard_grab *grab)
{
struct weston_desktop_seat *seat =
wl_container_of(grab, seat, popup_grab.keyboard);
weston_desktop_seat_popup_grab_end(seat);
}
static const struct weston_keyboard_grab_interface weston_desktop_seat_keyboard_popup_grab_interface = {
.key = weston_desktop_seat_popup_grab_keyboard_key,
.modifiers = weston_desktop_seat_popup_grab_keyboard_modifiers,
.cancel = weston_desktop_seat_popup_grab_keyboard_cancel,
};
static void
weston_desktop_seat_popup_grab_pointer_focus(struct weston_pointer_grab *grab)
{
struct weston_desktop_seat *seat =
wl_container_of(grab, seat, popup_grab.pointer);
struct weston_pointer *pointer = grab->pointer;
struct weston_view *view;
wl_fixed_t sx, sy;
view = weston_compositor_pick_view(pointer->seat->compositor,
pointer->x, pointer->y, &sx, &sy);
if (view != NULL &&
view->surface->resource != NULL &&
wl_resource_get_client(view->surface->resource) == seat->popup_grab.client)
weston_pointer_set_focus(pointer, view, sx, sy);
else
weston_pointer_clear_focus(pointer);
}
static void
weston_desktop_seat_popup_grab_pointer_motion(struct weston_pointer_grab *grab,
uint32_t time,
struct weston_pointer_motion_event *event)
{
weston_pointer_send_motion(grab->pointer, time, event);
}
static void
weston_desktop_seat_popup_grab_pointer_button(struct weston_pointer_grab *grab,
uint32_t time, uint32_t button,
enum wl_pointer_button_state state)
{
struct weston_desktop_seat *seat =
wl_container_of(grab, seat, popup_grab.pointer);
struct weston_pointer *pointer = grab->pointer;
bool initial_up = seat->popup_grab.initial_up;
if (state == WL_POINTER_BUTTON_STATE_RELEASED)
seat->popup_grab.initial_up = true;
if (weston_pointer_has_focus_resource(pointer))
weston_pointer_send_button(pointer, time, button, state);
else if (state == WL_POINTER_BUTTON_STATE_RELEASED &&
(initial_up || (time - grab->pointer->grab_time) > 500))
weston_desktop_seat_popup_grab_end(seat);
}
static void
weston_desktop_seat_popup_grab_pointer_axis(struct weston_pointer_grab *grab,
uint32_t time,
struct weston_pointer_axis_event *event)
{
weston_pointer_send_axis(grab->pointer, time, event);
}
static void
weston_desktop_seat_popup_grab_pointer_axis_source(struct weston_pointer_grab *grab,
uint32_t source)
{
weston_pointer_send_axis_source(grab->pointer, source);
}
static void
weston_desktop_seat_popup_grab_pointer_frame(struct weston_pointer_grab *grab)
{
weston_pointer_send_frame(grab->pointer);
}
static void
weston_desktop_seat_popup_grab_pointer_cancel(struct weston_pointer_grab *grab)
{
struct weston_desktop_seat *seat =
wl_container_of(grab, seat, popup_grab.pointer);
weston_desktop_seat_popup_grab_end(seat);
}
static const struct weston_pointer_grab_interface weston_desktop_seat_pointer_popup_grab_interface = {
.focus = weston_desktop_seat_popup_grab_pointer_focus,
.motion = weston_desktop_seat_popup_grab_pointer_motion,
.button = weston_desktop_seat_popup_grab_pointer_button,
.axis = weston_desktop_seat_popup_grab_pointer_axis,
.axis_source = weston_desktop_seat_popup_grab_pointer_axis_source,
.frame = weston_desktop_seat_popup_grab_pointer_frame,
.cancel = weston_desktop_seat_popup_grab_pointer_cancel,
};
static void
weston_desktop_seat_popup_grab_touch_down(struct weston_touch_grab *grab,
uint32_t time, int touch_id,
wl_fixed_t sx, wl_fixed_t sy)
{
weston_touch_send_down(grab->touch, time, touch_id, sx, sy);
}
static void
weston_desktop_seat_popup_grab_touch_up(struct weston_touch_grab *grab,
uint32_t time, int touch_id)
{
weston_touch_send_up(grab->touch, time, touch_id);
}
static void
weston_desktop_seat_popup_grab_touch_motion(struct weston_touch_grab *grab,
uint32_t time, int touch_id,
wl_fixed_t sx, wl_fixed_t sy)
{
weston_touch_send_motion(grab->touch, time, touch_id, sx, sy);
}
static void
weston_desktop_seat_popup_grab_touch_frame(struct weston_touch_grab *grab)
{
weston_touch_send_frame(grab->touch);
}
static void
weston_desktop_seat_popup_grab_touch_cancel(struct weston_touch_grab *grab)
{
struct weston_desktop_seat *seat =
wl_container_of(grab, seat, popup_grab.touch);
weston_desktop_seat_popup_grab_end(seat);
}
static const struct weston_touch_grab_interface weston_desktop_seat_touch_popup_grab_interface = {
.down = weston_desktop_seat_popup_grab_touch_down,
.up = weston_desktop_seat_popup_grab_touch_up,
.motion = weston_desktop_seat_popup_grab_touch_motion,
.frame = weston_desktop_seat_popup_grab_touch_frame,
.cancel = weston_desktop_seat_popup_grab_touch_cancel,
};
static void
weston_desktop_seat_destroy(struct wl_listener *listener, void *data)
{
struct weston_desktop_seat *seat =
wl_container_of(listener, seat, seat_destroy_listener);
free(seat);
}
struct weston_desktop_seat *
weston_desktop_seat_from_seat(struct weston_seat *wseat)
{
struct wl_listener *listener;
struct weston_desktop_seat *seat;
listener = wl_signal_get(&wseat->destroy_signal,
weston_desktop_seat_destroy);
if (listener != NULL)
return wl_container_of(listener, seat, seat_destroy_listener);
seat = zalloc(sizeof(struct weston_desktop_seat));
if (seat == NULL)
return NULL;
seat->seat = wseat;
seat->seat_destroy_listener.notify = weston_desktop_seat_destroy;
wl_signal_add(&wseat->destroy_signal, &seat->seat_destroy_listener);
seat->popup_grab.keyboard.interface =
&weston_desktop_seat_keyboard_popup_grab_interface;
seat->popup_grab.pointer.interface =
&weston_desktop_seat_pointer_popup_grab_interface;
seat->popup_grab.touch.interface =
&weston_desktop_seat_touch_popup_grab_interface;
wl_list_init(&seat->popup_grab.surfaces);
return seat;
}
struct weston_desktop_surface *
weston_desktop_seat_popup_grab_get_topmost_surface(struct weston_desktop_seat *seat)
{
if (wl_list_empty(&seat->popup_grab.surfaces))
return NULL;
struct wl_list *grab_link = seat->popup_grab.surfaces.next;
return weston_desktop_surface_from_grab_link(grab_link);
}
bool
weston_desktop_seat_popup_grab_start(struct weston_desktop_seat *seat,
struct wl_client *client, uint32_t serial)
{
assert(seat->popup_grab.client == NULL || seat->popup_grab.client == client);
struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat->seat);
struct weston_pointer *pointer = weston_seat_get_pointer(seat->seat);
struct weston_touch *touch = weston_seat_get_touch(seat->seat);
if ((keyboard == NULL || keyboard->grab_serial != serial) &&
(pointer == NULL || pointer->grab_serial != serial) &&
(touch == NULL || touch->grab_serial != serial)) {
return false;
}
if (keyboard != NULL &&
keyboard->grab->interface != &weston_desktop_seat_keyboard_popup_grab_interface)
weston_keyboard_start_grab(keyboard, &seat->popup_grab.keyboard);
if (pointer != NULL &&
pointer->grab->interface != &weston_desktop_seat_pointer_popup_grab_interface)
weston_pointer_start_grab(pointer, &seat->popup_grab.pointer);
if (touch != NULL &&
touch->grab->interface != &weston_desktop_seat_touch_popup_grab_interface)
weston_touch_start_grab(touch, &seat->popup_grab.touch);
seat->popup_grab.initial_up =
(pointer == NULL || pointer->button_count == 0);
seat->popup_grab.client = client;
return true;
}
static void
weston_desktop_seat_popup_grab_end(struct weston_desktop_seat *seat)
{
struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat->seat);
struct weston_pointer *pointer = weston_seat_get_pointer(seat->seat);
struct weston_touch *touch = weston_seat_get_touch(seat->seat);
while (!wl_list_empty(&seat->popup_grab.surfaces)) {
struct wl_list *link = seat->popup_grab.surfaces.prev;
struct weston_desktop_surface *surface =
weston_desktop_surface_from_grab_link(link);
wl_list_remove(link);
wl_list_init(link);
weston_desktop_surface_popup_dismiss(surface);
}
if (keyboard != NULL &&
keyboard->grab->interface == &weston_desktop_seat_keyboard_popup_grab_interface)
weston_keyboard_end_grab(keyboard);
if (pointer != NULL &&
pointer->grab->interface == &weston_desktop_seat_pointer_popup_grab_interface)
weston_pointer_end_grab(pointer);
if (touch != NULL &&
touch->grab->interface == &weston_desktop_seat_touch_popup_grab_interface)
weston_touch_end_grab(touch);
seat->popup_grab.client = NULL;
}
void
weston_desktop_seat_popup_grab_add_surface(struct weston_desktop_seat *seat,
struct wl_list *link)
{
assert(seat->popup_grab.client != NULL);
wl_list_insert(&seat->popup_grab.surfaces, link);
}
void
weston_desktop_seat_popup_grab_remove_surface(struct weston_desktop_seat *seat,
struct wl_list *link)
{
assert(seat->popup_grab.client != NULL);
wl_list_remove(link);
wl_list_init(link);
if (wl_list_empty(&seat->popup_grab.surfaces))
weston_desktop_seat_popup_grab_end(seat);
}
WL_EXPORT void
weston_seat_break_desktop_grabs(struct weston_seat *wseat)
{
struct weston_desktop_seat *seat = weston_desktop_seat_from_seat(wseat);
weston_desktop_seat_popup_grab_end(seat);
}