weston/compositor/meego-tablet-shell.c

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/*
* Copyright © 2011 Intel Corporation
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The copyright holders make
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/wait.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <linux/input.h>
#include "compositor.h"
#include "meego-tablet-server-protocol.h"
/*
* TODO: Don't fade back from black until we've received a lockscreen
* attachment.
*/
struct meego_tablet_shell {
struct wl_object object;
struct wlsc_shell shell;
struct wlsc_compositor *compositor;
struct wl_event_source *sigchld_source;
pid_t pid;
struct wlsc_input_device *device;
struct wl_client *client;
struct wlsc_animation animation;
struct wlsc_tweener scale;
int width, height;
struct wlsc_surface *surface;
struct wlsc_surface *lockscreen_surface;
struct wl_listener lockscreen_listener;
struct wlsc_surface *home_surface;
struct wlsc_surface *switcher_surface;
struct wl_listener switcher_listener;
/* FIXME: Need a state machine here. */
int starting, locked;
int home_active;
int task_switcher_active;
int long_press_active;
struct wl_event_source *long_press_source;
};
static int
sigchld_handler(int signal_number, void *data)
{
struct meego_tablet_shell *shell = data;
int status;
wait(&status);
shell->pid = 0;
fprintf(stderr, "meego-ux-daemon crashed, exit code %d\n", status);
return 1;
}
static void
tablet_shell_frame(struct wlsc_animation *animation,
struct wlsc_output *output, uint32_t msecs)
{
struct meego_tablet_shell *shell =
container_of(animation,
struct meego_tablet_shell, animation);
struct wlsc_surface *es = shell->surface;
float scale;
scale = shell->scale.current;
wlsc_tweener_update(&shell->scale, msecs);
if (wlsc_tweener_done(&shell->scale)) {
wl_list_remove(&animation->link);
shell->surface = NULL;
fprintf(stderr, "animation done\n");
}
es->width = scale * shell->width;
es->height = scale * shell->height;
es->x = (output->width - es->width) / 2;
es->y = (output->height - es->height) / 2;
wlsc_surface_update_matrix(es);
wlsc_surface_damage(es);
}
static void
meego_tablet_shell_attach(struct wlsc_shell *base,
struct wlsc_surface *surface)
{
struct meego_tablet_shell *shell =
container_of(base, struct meego_tablet_shell, shell);
struct wlsc_compositor *ec = shell->compositor;
const char *visual;
if (surface == shell->lockscreen_surface) {
if (shell->starting) {
wlsc_compositor_fade(shell->compositor, 0.0);
wlsc_compositor_wake(shell->compositor);
wlsc_surface_damage(surface);
shell->starting = 0;
}
} else if (surface == shell->switcher_surface) {
if (surface->visual == &ec->compositor.argb_visual) {
visual = "argb";
} else if (surface->visual == &ec->compositor.premultiplied_argb_visual) {
visual = "premultiplied argb";
} else {
visual = "rgb";
}
fprintf(stderr, "switcher attach, size %dx%d, visual %s\n",
shell->switcher_surface->width,
shell->switcher_surface->height, visual);
} else if (surface == shell->home_surface) {
surface->x = 0;
surface->y = 0;
wlsc_surface_update_matrix(surface);
} else {
/* FIXME: Fullscreen everything else. */
fprintf(stderr, "attach from surface %p, client %p\n",
surface, surface->surface.client);
if (shell->surface == NULL) {
fprintf(stderr, "starting animation for surface %p\n",
surface);
shell->width = surface->width;
shell->height = surface->height;
wlsc_tweener_init(&shell->scale, 3.0, 0.3, 1.0);
shell->animation.frame = tablet_shell_frame;
wl_list_insert(ec->animation_list.prev,
&shell->animation.link);
shell->surface = surface;
}
}
}
static void
handle_lockscreen_surface_destroy(struct wl_listener *listener,
struct wl_surface *surface, uint32_t time)
{
struct meego_tablet_shell *shell =
container_of(listener,
struct meego_tablet_shell, lockscreen_listener);
shell->lockscreen_surface = NULL;
shell->locked = 0;
}
static void
tablet_shell_set_lockscreen(struct wl_client *client,
struct meego_tablet_shell *shell,
struct wl_surface *surface)
{
struct wlsc_surface *es = (struct wlsc_surface *) surface;
struct wlsc_input_device *device =
(struct wlsc_input_device *) shell->compositor->input_device;
fprintf(stderr, "set lock screen\n");
es->x = 0;
es->y = 0;
wlsc_surface_update_matrix(es);
wlsc_surface_activate(es, device, wlsc_compositor_get_time());
shell->lockscreen_surface = es;
shell->lockscreen_listener.func = handle_lockscreen_surface_destroy;
wl_list_insert(es->surface.destroy_listener_list.prev,
&shell->lockscreen_listener.link);
}
static void
handle_switcher_surface_destroy(struct wl_listener *listener,
struct wl_surface *surface, uint32_t time)
{
struct meego_tablet_shell *shell =
container_of(listener,
struct meego_tablet_shell, switcher_listener);
shell->switcher_surface = NULL;
shell->task_switcher_active = 0;
}
static void
tablet_shell_set_switcher(struct wl_client *client,
struct meego_tablet_shell *shell,
struct wl_surface *surface)
{
struct wlsc_input_device *device =
(struct wlsc_input_device *) shell->compositor->input_device;
struct wlsc_surface *es = (struct wlsc_surface *) surface;
/* FIXME: Switcher should be centered and the compositor
* should do the tinting of the background. With the cache
* layer idea, we should be able to hit the framerate on the
* fade/zoom in. */
shell->switcher_surface = es;
shell->switcher_surface->x = 0;
shell->switcher_surface->y = 0;
wlsc_surface_update_matrix(es);
wlsc_surface_activate(es, device, wlsc_compositor_get_time());
fprintf(stderr, "set switcher %p, size %dx%d\n",
es, es->width, es->height);
shell->switcher_listener.func = handle_switcher_surface_destroy;
wl_list_insert(es->surface.destroy_listener_list.prev,
&shell->switcher_listener.link);
}
static void
tablet_shell_set_homescreen(struct wl_client *client,
struct meego_tablet_shell *shell,
struct wl_surface *surface)
{
struct wlsc_input_device *device =
(struct wlsc_input_device *) shell->compositor->input_device;
shell->home_surface = (struct wlsc_surface *) surface;
shell->home_surface->x = 0;
shell->home_surface->y = 0;
wlsc_surface_update_matrix(shell->home_surface);
wlsc_surface_activate(shell->home_surface, device,
wlsc_compositor_get_time());
fprintf(stderr, "set home screen\n");
}
struct meego_tablet_client {
struct wl_resource resource;
struct meego_tablet_shell *shell;
struct wl_client *client;
char *name;
};
static void
destroy_tablet_client(struct wl_resource *resource, struct wl_client *client)
{
struct meego_tablet_client *tablet_client =
container_of(resource, struct meego_tablet_client, resource);
free(tablet_client->name);
free(tablet_client);
}
static void
tablet_client_poke(struct wl_client *client,
struct meego_tablet_client *tablet_client)
{
struct wlsc_compositor *compositor = tablet_client->shell->compositor;
struct wlsc_surface *surface;
struct wlsc_input_device *device =
(struct wlsc_input_device *) compositor->input_device;
wl_list_for_each(surface, &compositor->surface_list, link) {
if (surface->surface.client == tablet_client->client) {
wlsc_surface_activate(surface, device,
wlsc_compositor_get_time());
break;
}
}
fprintf(stderr, "poke client %s\n", tablet_client->name);
}
static const struct meego_tablet_client_interface tablet_client_interface = {
tablet_client_poke
};
static void
tablet_shell_create_client(struct wl_client *client,
struct meego_tablet_shell *shell,
uint32_t id, const char *name, int fd)
{
struct wlsc_compositor *compositor = shell->compositor;
struct meego_tablet_client *tablet_client;
tablet_client = malloc(sizeof *tablet_client);
if (tablet_client == NULL) {
wl_client_post_no_memory(client);
return;
}
tablet_client->client = wl_client_create(compositor->wl_display, fd);
tablet_client->shell = shell;
tablet_client->name = strdup(name);
tablet_client->resource.destroy = destroy_tablet_client;
tablet_client->resource.object.id = id;
tablet_client->resource.object.interface =
&meego_tablet_client_interface;
tablet_client->resource.object.implementation =
(void (**)(void)) &tablet_client_interface;
wl_client_add_resource(client, &tablet_client->resource);
fprintf(stderr, "created client %p, id %d, name %s, fd %d\n",
tablet_client->client, id, name, fd);
}
static const struct meego_tablet_shell_interface tablet_shell_interface = {
tablet_shell_set_lockscreen,
tablet_shell_set_switcher,
tablet_shell_set_homescreen,
tablet_shell_create_client
};
static void
launch_switcher(struct meego_tablet_shell *shell)
{
struct wlsc_compositor *compositor = shell->compositor;
char s[32];
int sv[2], flags;
if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, sv) < 0) {
fprintf(stderr, "socketpair failed\n");
return;
}
/* SOCK_CLOEXEC closes both ends, so we need to unset the flag
* on the client fd. */
flags = fcntl(sv[1], F_GETFD);
if (flags != -1)
fcntl(sv[1], F_SETFD, flags & ~FD_CLOEXEC);
shell->pid = fork();
switch (shell->pid) {
case 0:
snprintf(s, sizeof s, "%d", sv[1]);
setenv("WAYLAND_SOCKET", s, 1);
setenv("EGL_PLATFORM", "wayland", 1);
setenv("QT_QPA_PLATFORM", "waylandgl", 1);
if (execl("/usr/libexec/meego-ux-daemon",
"/usr/libexec/meego-ux-daemon", NULL) < 0)
fprintf(stderr, "exec failed: %m\n");
exit(-1);
default:
close(sv[1]);
shell->client =
wl_client_create(compositor->wl_display, sv[0]);
break;
case -1:
fprintf(stderr, "failed to fork\n");
break;
}
}
static void
toggle_switcher(struct meego_tablet_shell *shell)
{
struct wlsc_surface *surface = shell->switcher_surface;
if (surface) {
wl_client_post_event(shell->client, &shell->object,
MEEGO_TABLET_SHELL_HIDE_SWITCHER);
printf("hide switcher\n");
/* cleanupTaskSwitcher(); */
} else {
shell->task_switcher_active = 1;
wl_client_post_event(shell->client, &shell->object,
MEEGO_TABLET_SHELL_SHOW_SWITCHER);
}
}
static void
meego_tablet_shell_lock(struct wlsc_shell *base)
{
struct meego_tablet_shell *shell =
container_of(base, struct meego_tablet_shell, shell);
if (!shell->locked)
wl_client_post_event(shell->client, &shell->object,
MEEGO_TABLET_SHELL_SHOW_LOCKSCREEN);
shell->locked = 1;
}
static void
go_home(struct meego_tablet_shell *shell)
{
struct wlsc_input_device *device =
(struct wlsc_input_device *) shell->compositor->input_device;
if (shell->task_switcher_active)
wl_client_post_event(shell->client, &shell->object,
MEEGO_TABLET_SHELL_HIDE_SWITCHER);
wlsc_surface_activate(shell->home_surface, device,
wlsc_compositor_get_time());
printf("go home\n");
}
static int
long_press_handler(void *data)
{
struct meego_tablet_shell *shell = data;
shell->long_press_active = 0;
toggle_switcher(shell);
return 1;
}
static void
menu_key_binding(struct wl_input_device *device, uint32_t time,
uint32_t key, uint32_t button, uint32_t state, void *data)
{
struct meego_tablet_shell *shell = data;
if (shell->locked)
return;
if (state)
toggle_switcher(shell);
}
static void
home_key_binding(struct wl_input_device *device, uint32_t time,
uint32_t key, uint32_t button, uint32_t state, void *data)
{
struct meego_tablet_shell *shell = data;
if (shell->locked)
return;
shell->device = (struct wlsc_input_device *) device;
if (state) {
wl_event_source_timer_update(shell->long_press_source, 500);
shell->long_press_active = 1;
} else if (shell->long_press_active) {
wl_event_source_timer_update(shell->long_press_source, 0);
shell->long_press_active = 0;
if (shell->home_active || shell->task_switcher_active)
toggle_switcher(shell);
else
go_home(shell);
}
}
static void
tablet_shell_bind(struct wl_client *client,
struct wl_object *object, uint32_t version)
{
struct meego_tablet_shell *shell =
(struct meego_tablet_shell *) object;
wl_client_post_event(shell->client, &shell->object,
MEEGO_TABLET_SHELL_SHOW_LOCKSCREEN);
}
void
shell_init(struct wlsc_compositor *compositor);
WL_EXPORT void
shell_init(struct wlsc_compositor *compositor)
{
struct meego_tablet_shell *shell;
struct wl_event_loop *loop;
shell = malloc(sizeof *shell);
if (shell == NULL)
return;
memset(shell, 0, sizeof *shell);
shell->compositor = compositor;
shell->locked = 1;
shell->object.interface = &meego_tablet_shell_interface;
shell->object.implementation =
(void (**)(void)) &tablet_shell_interface;
wl_display_add_object(compositor->wl_display, &shell->object);
/* FIXME: This will make the object available to all clients. */
wl_display_add_global(compositor->wl_display,
&shell->object, tablet_shell_bind);
loop = wl_display_get_event_loop(compositor->wl_display);
shell->sigchld_source =
wl_event_loop_add_signal(loop, SIGCHLD,
sigchld_handler, shell);
shell->long_press_source =
wl_event_loop_add_timer(loop, long_press_handler, shell);
wlsc_compositor_add_binding(compositor, KEY_SPACE, 0, MODIFIER_CTRL,
home_key_binding, shell);
wlsc_compositor_add_binding(compositor, KEY_ENTER, 0, MODIFIER_CTRL,
menu_key_binding, shell);
compositor->shell = &shell->shell;
shell->shell.lock = meego_tablet_shell_lock;
shell->shell.attach = meego_tablet_shell_attach;
launch_switcher(shell);
wlsc_tweener_init(&compositor->fade.tweener, 0.8, 1.0, 1.0);
shell->starting = 1;
}