409ef0a5c8
shell.c and tablet-shell.c had almost the same code for forking their special shell client. Generalise this code and put it into wlsc_client_launch() in compositor.c. Improve error cleanup and reporting in wlsc_client_launch(). Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
568 lines
15 KiB
C
568 lines
15 KiB
C
/*
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* Copyright © 2011 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of the copyright holders not be used in
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* advertising or publicity pertaining to distribution of the software
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* without specific, written prior permission. The copyright holders make
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/wait.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <linux/input.h>
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#include "compositor.h"
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#include "tablet-shell-server-protocol.h"
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/*
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* TODO: Don't fade back from black until we've received a lockscreen
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* attachment.
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*/
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enum {
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STATE_STARTING,
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STATE_LOCKED,
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STATE_HOME,
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STATE_SWITCHER,
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STATE_TASK
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};
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struct tablet_shell {
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struct wl_resource resource;
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struct wlsc_shell shell;
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struct wlsc_compositor *compositor;
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struct wlsc_process process;
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struct wlsc_input_device *device;
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struct wl_client *client;
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struct wlsc_surface *surface;
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struct wlsc_surface *lockscreen_surface;
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struct wl_listener lockscreen_listener;
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struct wlsc_surface *home_surface;
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struct wlsc_surface *switcher_surface;
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struct wl_listener switcher_listener;
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struct tablet_client *current_client;
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int state, previous_state;
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int long_press_active;
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struct wl_event_source *long_press_source;
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};
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struct tablet_client {
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struct wl_resource resource;
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struct tablet_shell *shell;
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struct wl_client *client;
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struct wlsc_surface *surface;
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char *name;
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};
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static void
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tablet_shell_sigchld(struct wlsc_process *process, int status)
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{
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struct tablet_shell *shell =
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container_of(process, struct tablet_shell, process);
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shell->process.pid = 0;
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fprintf(stderr,
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"wayland-tablet-daemon crashed, exit code %d\n", status);
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}
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static void
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tablet_shell_set_state(struct tablet_shell *shell, int state)
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{
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static const char *states[] = {
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"STARTING", "LOCKED", "HOME", "SWITCHER", "TASK"
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};
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fprintf(stderr, "switching to state %s (from %s)\n",
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states[state], states[shell->state]);
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shell->previous_state = shell->state;
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shell->state = state;
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}
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static void
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tablet_shell_map(struct wlsc_shell *base, struct wlsc_surface *surface,
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int32_t width, int32_t height)
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{
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struct tablet_shell *shell =
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container_of(base, struct tablet_shell, shell);
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surface->x = 0;
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surface->y = 0;
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if (surface == shell->lockscreen_surface) {
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/* */
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} else if (surface == shell->switcher_surface) {
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/* */
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} else if (surface == shell->home_surface) {
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if (shell->state == STATE_STARTING) {
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tablet_shell_set_state(shell, STATE_LOCKED);
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shell->previous_state = STATE_HOME;
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wl_resource_post_event(&shell->resource,
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TABLET_SHELL_SHOW_LOCKSCREEN);
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}
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} else if (shell->current_client &&
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shell->current_client->surface != surface &&
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shell->current_client->client == surface->surface.resource.client) {
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tablet_shell_set_state(shell, STATE_TASK);
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shell->current_client->surface = surface;
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wlsc_zoom_run(surface, 0.3, 1.0, NULL, NULL);
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}
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wl_list_insert(&shell->compositor->surface_list, &surface->link);
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wlsc_surface_configure(surface, surface->x, surface->y, width, height);
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}
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static void
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tablet_shell_configure(struct wlsc_shell *base,
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struct wlsc_surface *surface,
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int32_t x, int32_t y,
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int32_t width, int32_t height)
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{
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wlsc_surface_configure(surface, x, y, width, height);
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}
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static void
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handle_lockscreen_surface_destroy(struct wl_listener *listener,
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struct wl_resource *resource, uint32_t time)
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{
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struct tablet_shell *shell =
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container_of(listener,
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struct tablet_shell, lockscreen_listener);
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shell->lockscreen_surface = NULL;
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tablet_shell_set_state(shell, shell->previous_state);
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}
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static void
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tablet_shell_set_lockscreen(struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *surface_resource)
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{
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struct tablet_shell *shell = resource->data;
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struct wlsc_surface *es = surface_resource->data;
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es->x = 0;
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es->y = 0;
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shell->lockscreen_surface = es;
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shell->lockscreen_listener.func = handle_lockscreen_surface_destroy;
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wl_list_insert(es->surface.resource.destroy_listener_list.prev,
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&shell->lockscreen_listener.link);
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}
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static void
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handle_switcher_surface_destroy(struct wl_listener *listener,
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struct wl_resource *resource, uint32_t time)
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{
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struct tablet_shell *shell =
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container_of(listener,
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struct tablet_shell, switcher_listener);
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shell->switcher_surface = NULL;
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if (shell->state != STATE_LOCKED)
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tablet_shell_set_state(shell, shell->previous_state);
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}
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static void
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tablet_shell_set_switcher(struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *surface_resource)
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{
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struct tablet_shell *shell = resource->data;
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struct wlsc_surface *es = surface_resource->data;
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/* FIXME: Switcher should be centered and the compositor
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* should do the tinting of the background. With the cache
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* layer idea, we should be able to hit the framerate on the
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* fade/zoom in. */
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shell->switcher_surface = es;
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shell->switcher_surface->x = 0;
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shell->switcher_surface->y = 0;
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shell->switcher_listener.func = handle_switcher_surface_destroy;
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wl_list_insert(es->surface.resource.destroy_listener_list.prev,
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&shell->switcher_listener.link);
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}
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static void
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tablet_shell_set_homescreen(struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *surface_resource)
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{
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struct tablet_shell *shell = resource->data;
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shell->home_surface = surface_resource->data;
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shell->home_surface->x = 0;
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shell->home_surface->y = 0;
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}
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static void
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minimize_zoom_done(struct wlsc_zoom *zoom, void *data)
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{
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struct tablet_shell *shell = data;
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struct wlsc_compositor *compositor = shell->compositor;
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struct wlsc_input_device *device =
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(struct wlsc_input_device *) compositor->input_device;
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wlsc_surface_activate(shell->home_surface,
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device, wlsc_compositor_get_time());
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}
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static void
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tablet_shell_switch_to(struct tablet_shell *shell,
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struct wlsc_surface *surface)
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{
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struct wlsc_compositor *compositor = shell->compositor;
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struct wlsc_input_device *device =
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(struct wlsc_input_device *) compositor->input_device;
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struct wlsc_surface *current;
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if (shell->state == STATE_SWITCHER) {
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wl_list_remove(&shell->switcher_listener.link);
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shell->switcher_surface = NULL;
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};
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if (surface == shell->home_surface) {
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tablet_shell_set_state(shell, STATE_HOME);
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if (shell->current_client && shell->current_client->surface) {
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current = shell->current_client->surface;
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wlsc_zoom_run(current, 1.0, 0.3,
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minimize_zoom_done, shell);
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}
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} else {
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fprintf(stderr, "switch to %p\n", surface);
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wlsc_surface_activate(surface, device,
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wlsc_compositor_get_time());
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tablet_shell_set_state(shell, STATE_TASK);
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wlsc_zoom_run(surface, 0.3, 1.0, NULL, NULL);
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}
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}
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static void
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tablet_shell_show_grid(struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *surface_resource)
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{
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struct tablet_shell *shell = resource->data;
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struct wlsc_surface *es = surface_resource->data;
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tablet_shell_switch_to(shell, es);
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}
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static void
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tablet_shell_show_panels(struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *surface_resource)
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{
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struct tablet_shell *shell = resource->data;
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struct wlsc_surface *es = surface_resource->data;
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tablet_shell_switch_to(shell, es);
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}
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static void
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destroy_tablet_client(struct wl_resource *resource)
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{
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struct tablet_client *tablet_client =
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container_of(resource, struct tablet_client, resource);
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free(tablet_client->name);
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free(tablet_client);
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}
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static void
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tablet_client_destroy(struct wl_client *client,
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struct wl_resource *resource)
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{
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wl_resource_destroy(resource, wlsc_compositor_get_time());
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}
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static void
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tablet_client_activate(struct wl_client *client, struct wl_resource *resource)
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{
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struct tablet_client *tablet_client = resource->data;
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struct tablet_shell *shell = tablet_client->shell;
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shell->current_client = tablet_client;
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if (!tablet_client->surface)
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return;
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tablet_shell_switch_to(shell, tablet_client->surface);
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}
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static const struct tablet_client_interface tablet_client_implementation = {
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tablet_client_destroy,
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tablet_client_activate
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};
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static void
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tablet_shell_create_client(struct wl_client *client,
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struct wl_resource *resource,
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uint32_t id, const char *name, int fd)
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{
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struct tablet_shell *shell = resource->data;
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struct wlsc_compositor *compositor = shell->compositor;
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struct tablet_client *tablet_client;
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tablet_client = malloc(sizeof *tablet_client);
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if (tablet_client == NULL) {
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wl_resource_post_no_memory(resource);
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return;
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}
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tablet_client->client = wl_client_create(compositor->wl_display, fd);
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tablet_client->shell = shell;
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tablet_client->name = strdup(name);
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tablet_client->resource.destroy = destroy_tablet_client;
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tablet_client->resource.object.id = id;
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tablet_client->resource.object.interface =
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&tablet_client_interface;
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tablet_client->resource.object.implementation =
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(void (**)(void)) &tablet_client_implementation;
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wl_client_add_resource(client, &tablet_client->resource);
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tablet_client->surface = NULL;
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shell->current_client = tablet_client;
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fprintf(stderr, "created client %p, id %d, name %s, fd %d\n",
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tablet_client->client, id, name, fd);
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}
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static const struct tablet_shell_interface tablet_shell_implementation = {
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tablet_shell_set_lockscreen,
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tablet_shell_set_switcher,
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tablet_shell_set_homescreen,
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tablet_shell_show_grid,
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tablet_shell_show_panels,
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tablet_shell_create_client
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};
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static void
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launch_ux_daemon(struct tablet_shell *shell)
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{
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const char *shell_exe = LIBEXECDIR "/wayland-tablet-shell";
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shell->client = wlsc_client_launch(shell->compositor,
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&shell->process,
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shell_exe, tablet_shell_sigchld);
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}
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static void
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toggle_switcher(struct tablet_shell *shell)
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{
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switch (shell->state) {
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case STATE_SWITCHER:
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wl_resource_post_event(&shell->resource,
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TABLET_SHELL_HIDE_SWITCHER);
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break;
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default:
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wl_resource_post_event(&shell->resource,
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TABLET_SHELL_SHOW_SWITCHER);
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tablet_shell_set_state(shell, STATE_SWITCHER);
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break;
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}
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}
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static void
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tablet_shell_activate(struct wlsc_shell *base, struct wlsc_surface *es,
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struct wlsc_input_device *device, uint32_t time)
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{
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wlsc_surface_activate(es, device, time);
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}
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static void
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tablet_shell_lock(struct wlsc_shell *base)
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{
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struct tablet_shell *shell =
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container_of(base, struct tablet_shell, shell);
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if (shell->state == STATE_LOCKED)
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return;
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if (shell->state == STATE_SWITCHER)
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wl_resource_post_event(&shell->resource,
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TABLET_SHELL_HIDE_SWITCHER);
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wl_resource_post_event(&shell->resource,
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TABLET_SHELL_SHOW_LOCKSCREEN);
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tablet_shell_set_state(shell, STATE_LOCKED);
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}
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static void
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tablet_shell_unlock(struct wlsc_shell *base)
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{
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struct tablet_shell *shell =
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container_of(base, struct tablet_shell, shell);
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wlsc_compositor_wake(shell->compositor);
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}
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static void
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go_home(struct tablet_shell *shell)
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{
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struct wlsc_input_device *device =
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(struct wlsc_input_device *) shell->compositor->input_device;
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if (shell->state == STATE_SWITCHER)
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wl_resource_post_event(&shell->resource,
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TABLET_SHELL_HIDE_SWITCHER);
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wlsc_surface_activate(shell->home_surface, device,
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wlsc_compositor_get_time());
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tablet_shell_set_state(shell, STATE_HOME);
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}
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static int
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long_press_handler(void *data)
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{
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struct tablet_shell *shell = data;
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shell->long_press_active = 0;
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toggle_switcher(shell);
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return 1;
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}
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static void
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menu_key_binding(struct wl_input_device *device, uint32_t time,
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uint32_t key, uint32_t button, uint32_t state, void *data)
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{
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struct tablet_shell *shell = data;
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if (shell->state == STATE_LOCKED)
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return;
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if (state)
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toggle_switcher(shell);
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}
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static void
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home_key_binding(struct wl_input_device *device, uint32_t time,
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uint32_t key, uint32_t button, uint32_t state, void *data)
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{
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struct tablet_shell *shell = data;
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if (shell->state == STATE_LOCKED)
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return;
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shell->device = (struct wlsc_input_device *) device;
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if (state) {
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wl_event_source_timer_update(shell->long_press_source, 500);
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shell->long_press_active = 1;
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} else if (shell->long_press_active) {
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wl_event_source_timer_update(shell->long_press_source, 0);
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shell->long_press_active = 0;
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switch (shell->state) {
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case STATE_HOME:
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case STATE_SWITCHER:
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toggle_switcher(shell);
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break;
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default:
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go_home(shell);
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break;
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}
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}
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}
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static void
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destroy_tablet_shell(struct wl_resource *resource)
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{
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}
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static void
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bind_shell(struct wl_client *client, void *data, uint32_t version, uint32_t id)
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{
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struct tablet_shell *shell = data;
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if (shell->client != client)
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/* Throw an error or just let the client fail when it
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* tries to access the object?. */
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return;
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shell->resource.object.id = id;
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shell->resource.object.interface = &tablet_shell_interface;
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shell->resource.object.implementation =
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(void (**)(void)) &tablet_shell_implementation;
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shell->resource.client = client;
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shell->resource.data = shell;
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shell->resource.destroy = destroy_tablet_shell;
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wl_client_add_resource(client, &shell->resource);
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}
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void
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shell_init(struct wlsc_compositor *compositor);
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WL_EXPORT void
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shell_init(struct wlsc_compositor *compositor)
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{
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struct tablet_shell *shell;
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struct wl_event_loop *loop;
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shell = malloc(sizeof *shell);
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if (shell == NULL)
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return;
|
|
|
|
memset(shell, 0, sizeof *shell);
|
|
shell->compositor = compositor;
|
|
|
|
/* FIXME: This will make the object available to all clients. */
|
|
wl_display_add_global(compositor->wl_display,
|
|
&tablet_shell_interface, shell, bind_shell);
|
|
|
|
loop = wl_display_get_event_loop(compositor->wl_display);
|
|
shell->long_press_source =
|
|
wl_event_loop_add_timer(loop, long_press_handler, shell);
|
|
|
|
wlsc_compositor_add_binding(compositor, KEY_LEFTMETA, 0, 0,
|
|
home_key_binding, shell);
|
|
wlsc_compositor_add_binding(compositor, KEY_RIGHTMETA, 0, 0,
|
|
home_key_binding, shell);
|
|
wlsc_compositor_add_binding(compositor, KEY_LEFTMETA, 0,
|
|
MODIFIER_SUPER, home_key_binding, shell);
|
|
wlsc_compositor_add_binding(compositor, KEY_RIGHTMETA, 0,
|
|
MODIFIER_SUPER, home_key_binding, shell);
|
|
wlsc_compositor_add_binding(compositor, KEY_COMPOSE, 0, 0,
|
|
menu_key_binding, shell);
|
|
|
|
compositor->shell = &shell->shell;
|
|
|
|
shell->shell.activate = tablet_shell_activate;
|
|
shell->shell.lock = tablet_shell_lock;
|
|
shell->shell.unlock = tablet_shell_unlock;
|
|
shell->shell.map = tablet_shell_map;
|
|
shell->shell.configure = tablet_shell_configure;
|
|
|
|
launch_ux_daemon(shell);
|
|
|
|
tablet_shell_set_state(shell, STATE_STARTING);
|
|
}
|