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weston/ivi-shell/ivi-shell.c

490 lines
13 KiB

/*
* Copyright (C) 2013 DENSO CORPORATION
*
* 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.
*/
/*
* ivi-shell supports a type of shell for In-Vehicle Infotainment system.
* In-Vehicle Infotainment system traditionally manages surfaces with global
* identification. A protocol, ivi_application, supports such a feature
* by implementing a request, ivi_application::surface_creation defined in
* ivi_application.xml.
*
* The ivi-shell explicitly loads a module to add business logic like how to
* layout surfaces by using internal ivi-layout APIs.
*/
#include "config.h"
#include <stdint.h>
#include <string.h>
#include <dlfcn.h>
#include <limits.h>
#include <assert.h>
#include <linux/input.h>
#include "ivi-shell.h"
#include "ivi-application-server-protocol.h"
#include "ivi-layout-export.h"
#include "ivi-layout-shell.h"
#include "shared/helpers.h"
#include "compositor/weston.h"
/* Representation of ivi_surface protocol object. */
struct ivi_shell_surface
{
struct wl_resource* resource;
struct ivi_shell *shell;
struct ivi_layout_surface *layout_surface;
struct weston_surface *surface;
struct wl_listener surface_destroy_listener;
uint32_t id_surface;
int32_t width;
int32_t height;
struct wl_list link;
};
/*
* Implementation of ivi_surface
*/
static void
ivi_shell_surface_committed(struct weston_surface *, int32_t, int32_t);
static struct ivi_shell_surface *
get_ivi_shell_surface(struct weston_surface *surface)
{
struct ivi_shell_surface *shsurf;
if (surface->committed != ivi_shell_surface_committed)
return NULL;
shsurf = surface->committed_private;
assert(shsurf);
assert(shsurf->surface == surface);
return shsurf;
}
struct ivi_layout_surface *
shell_get_ivi_layout_surface(struct weston_surface *surface)
{
struct ivi_shell_surface *shsurf;
shsurf = get_ivi_shell_surface(surface);
if (!shsurf)
return NULL;
return shsurf->layout_surface;
}
void
shell_surface_send_configure(struct weston_surface *surface,
int32_t width, int32_t height)
{
struct ivi_shell_surface *shsurf;
shsurf = get_ivi_shell_surface(surface);
assert(shsurf);
if (!shsurf)
return;
if (shsurf->resource)
ivi_surface_send_configure(shsurf->resource, width, height);
}
static void
ivi_shell_surface_committed(struct weston_surface *surface,
int32_t sx, int32_t sy)
{
struct ivi_shell_surface *ivisurf = get_ivi_shell_surface(surface);
assert(ivisurf);
if (!ivisurf)
return;
if (surface->width == 0 || surface->height == 0)
return;
if (ivisurf->width != surface->width ||
ivisurf->height != surface->height) {
ivisurf->width = surface->width;
ivisurf->height = surface->height;
ivi_layout_surface_configure(ivisurf->layout_surface,
surface->width, surface->height);
}
}
static int
ivi_shell_surface_get_label(struct weston_surface *surface,
char *buf,
size_t len)
{
struct ivi_shell_surface *shell_surf = get_ivi_shell_surface(surface);
if (!shell_surf)
return snprintf(buf, len, "unidentified window in ivi-shell");
return snprintf(buf, len, "ivi-surface %#x", shell_surf->id_surface);
}
static void
layout_surface_cleanup(struct ivi_shell_surface *ivisurf)
{
assert(ivisurf->layout_surface != NULL);
ivi_layout_surface_destroy(ivisurf->layout_surface);
ivisurf->layout_surface = NULL;
ivisurf->surface->committed = NULL;
ivisurf->surface->committed_private = NULL;
weston_surface_set_label_func(ivisurf->surface, NULL);
ivisurf->surface = NULL;
// destroy weston_surface destroy signal.
wl_list_remove(&ivisurf->surface_destroy_listener.link);
}
/*
* The ivi_surface wl_resource destructor.
*
* Gets called via ivi_surface.destroy request or automatic wl_client clean-up.
*/
static void
shell_destroy_shell_surface(struct wl_resource *resource)
{
struct ivi_shell_surface *ivisurf = wl_resource_get_user_data(resource);
if (ivisurf == NULL)
return;
assert(ivisurf->resource == resource);
if (ivisurf->layout_surface != NULL)
layout_surface_cleanup(ivisurf);
wl_list_remove(&ivisurf->link);
free(ivisurf);
}
/* Gets called through the weston_surface destroy signal. */
static void
shell_handle_surface_destroy(struct wl_listener *listener, void *data)
{
struct ivi_shell_surface *ivisurf =
container_of(listener, struct ivi_shell_surface,
surface_destroy_listener);
assert(ivisurf != NULL);
if (ivisurf->layout_surface != NULL)
layout_surface_cleanup(ivisurf);
}
/* Gets called, when a client sends ivi_surface.destroy request. */
static void
surface_destroy(struct wl_client *client, struct wl_resource *resource)
{
/*
* Fires the wl_resource destroy signal, and then calls
* ivi_surface wl_resource destructor: shell_destroy_shell_surface()
*/
wl_resource_destroy(resource);
}
static const struct ivi_surface_interface surface_implementation = {
surface_destroy,
};
/**
* Request handler for ivi_application.surface_create.
*
* Creates an ivi_surface protocol object associated with the given wl_surface.
* ivi_surface protocol object is represented by struct ivi_shell_surface.
*
* \param client The client.
* \param resource The ivi_application protocol object.
* \param id_surface The IVI surface ID.
* \param surface_resource The wl_surface protocol object.
* \param id The protocol object id for the new ivi_surface protocol object.
*
* The wl_surface is given the ivi_surface role and associated with a unique
* IVI ID which is used to identify the surface in a controller
* (window manager).
*/
static void
application_surface_create(struct wl_client *client,
struct wl_resource *resource,
uint32_t id_surface,
struct wl_resource *surface_resource,
uint32_t id)
{
struct ivi_shell *shell = wl_resource_get_user_data(resource);
struct ivi_shell_surface *ivisurf;
struct ivi_layout_surface *layout_surface;
struct weston_surface *weston_surface =
wl_resource_get_user_data(surface_resource);
struct wl_resource *res;
if (weston_surface_set_role(weston_surface, "ivi_surface",
resource, IVI_APPLICATION_ERROR_ROLE) < 0)
return;
layout_surface = ivi_layout_surface_create(weston_surface, id_surface);
/* check if id_ivi is already used for wl_surface*/
if (layout_surface == NULL) {
wl_resource_post_error(resource,
IVI_APPLICATION_ERROR_IVI_ID,
"surface_id is already assigned "
"by another app");
return;
}
ivisurf = zalloc(sizeof *ivisurf);
if (ivisurf == NULL) {
wl_resource_post_no_memory(resource);
return;
}
wl_list_init(&ivisurf->link);
wl_list_insert(&shell->ivi_surface_list, &ivisurf->link);
ivisurf->shell = shell;
ivisurf->id_surface = id_surface;
ivisurf->width = 0;
ivisurf->height = 0;
ivisurf->layout_surface = layout_surface;
/*
* The following code relies on wl_surface destruction triggering
* immediateweston_surface destruction
*/
ivisurf->surface_destroy_listener.notify = shell_handle_surface_destroy;
wl_signal_add(&weston_surface->destroy_signal,
&ivisurf->surface_destroy_listener);
ivisurf->surface = weston_surface;
weston_surface->committed = ivi_shell_surface_committed;
weston_surface->committed_private = ivisurf;
weston_surface_set_label_func(weston_surface,
ivi_shell_surface_get_label);
res = wl_resource_create(client, &ivi_surface_interface, 1, id);
if (res == NULL) {
wl_client_post_no_memory(client);
return;
}
ivisurf->resource = res;
wl_resource_set_implementation(res, &surface_implementation,
ivisurf, shell_destroy_shell_surface);
}
static const struct ivi_application_interface application_implementation = {
application_surface_create
};
/*
* Handle wl_registry.bind of ivi_application global singleton.
*/
static void
bind_ivi_application(struct wl_client *client,
void *data, uint32_t version, uint32_t id)
{
struct ivi_shell *shell = data;
struct wl_resource *resource;
resource = wl_resource_create(client, &ivi_application_interface,
1, id);
wl_resource_set_implementation(resource,
&application_implementation,
shell, NULL);
}
/*
* Called through the compositor's destroy signal.
*/
static void
shell_destroy(struct wl_listener *listener, void *data)
{
struct ivi_shell *shell =
container_of(listener, struct ivi_shell, destroy_listener);
struct ivi_shell_surface *ivisurf, *next;
wl_list_remove(&shell->destroy_listener.link);
wl_list_remove(&shell->wake_listener.link);
wl_list_for_each_safe(ivisurf, next, &shell->ivi_surface_list, link) {
wl_list_remove(&ivisurf->link);
free(ivisurf);
}
free(shell);
}
/*
* Called through the compositor's wake signal.
*/
static void
wake_handler(struct wl_listener *listener, void *data)
{
struct weston_compositor *compositor = data;
weston_compositor_damage_all(compositor);
}
static void
terminate_binding(struct weston_keyboard *keyboard, const struct timespec *time,
uint32_t key, void *data)
{
struct weston_compositor *compositor = data;
weston_compositor_exit(compositor);
}
static void
init_ivi_shell(struct weston_compositor *compositor, struct ivi_shell *shell)
{
struct weston_config *config = wet_get_config(compositor);
struct weston_config_section *section;
int developermode;
shell->compositor = compositor;
wl_list_init(&shell->ivi_surface_list);
section = weston_config_get_section(config, "ivi-shell", NULL, NULL);
weston_config_section_get_bool(section, "developermode",
&developermode, 0);
if (developermode) {
weston_install_debug_key_binding(compositor, MODIFIER_SUPER);
weston_compositor_add_key_binding(compositor, KEY_BACKSPACE,
MODIFIER_CTRL | MODIFIER_ALT,
terminate_binding,
compositor);
}
}
static void
activate_binding(struct weston_seat *seat,
struct weston_view *focus_view)
{
struct weston_surface *focus = focus_view->surface;
struct weston_surface *main_surface =
weston_surface_get_main_surface(focus);
if (get_ivi_shell_surface(main_surface) == NULL)
return;
weston_seat_set_keyboard_focus(seat, focus);
}
static void
click_to_activate_binding(struct weston_pointer *pointer,
const struct timespec *time,
uint32_t button, void *data)
{
if (pointer->grab != &pointer->default_grab)
return;
if (pointer->focus == NULL)
return;
activate_binding(pointer->seat, pointer->focus);
}
static void
touch_to_activate_binding(struct weston_touch *touch,
const struct timespec *time,
void *data)
{
if (touch->grab != &touch->default_grab)
return;
if (touch->focus == NULL)
return;
activate_binding(touch->seat, touch->focus);
}
static void
shell_add_bindings(struct weston_compositor *compositor,
struct ivi_shell *shell)
{
weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
click_to_activate_binding,
shell);
weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
click_to_activate_binding,
shell);
weston_compositor_add_touch_binding(compositor, 0,
touch_to_activate_binding,
shell);
}
/*
* Initialization of ivi-shell.
*/
WL_EXPORT int
wet_shell_init(struct weston_compositor *compositor,
int *argc, char *argv[])
{
struct ivi_shell *shell;
int retval = -1;
shell = zalloc(sizeof *shell);
if (shell == NULL)
return -1;
init_ivi_shell(compositor, shell);
shell->destroy_listener.notify = shell_destroy;
wl_signal_add(&compositor->destroy_signal, &shell->destroy_listener);
shell->wake_listener.notify = wake_handler;
wl_signal_add(&compositor->wake_signal, &shell->wake_listener);
if (wl_global_create(compositor->wl_display,
&ivi_application_interface, 1,
shell, bind_ivi_application) == NULL)
goto out;
ivi_layout_init_with_compositor(compositor);
shell_add_bindings(compositor, shell);
retval = 0;
out:
return retval;
}