weston/ivi-shell/ivi-shell.c
Nobuhiko Tanibata 0038b738ab ivi-shell: reference implementation of input panel for ivi-shell
- introduces ivi-shell/input-panel-ivi.c which is basically copied
  from desktop shell. It shall be improvaded to remove duplicate
  implementation.

Signed-off-by: Nobuhiko Tanibata <NOBUHIKO_TANIBATA@xddp.denso.co.jp>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-12-04 17:25:50 +02:00

499 lines
13 KiB
C

/*
* Copyright (C) 2013 DENSO 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.
*/
/*
* 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 <sys/wait.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <linux/input.h>
#include <dlfcn.h>
#include <limits.h>
#include <assert.h>
#include "ivi-shell.h"
#include "ivi-application-server-protocol.h"
#include "ivi-layout-private.h"
#include "../shared/os-compatibility.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;
struct wl_listener configured_listener;
};
struct ivi_shell_setting
{
char *ivi_module;
};
/*
* Implementation of ivi_surface
*/
static void
surface_configure_notify(struct wl_listener *listener, void *data)
{
struct ivi_layout_surface *layout_surf =
(struct ivi_layout_surface *)data;
struct ivi_shell_surface *shell_surf =
container_of(listener,
struct ivi_shell_surface,
configured_listener);
int32_t dest_width = 0;
int32_t dest_height = 0;
shell_surf->shell->ivi_layout->get_surface_dimension(layout_surf,
&dest_width, &dest_height);
if (shell_surf->resource)
ivi_surface_send_configure(shell_surf->resource,
dest_width, dest_height);
}
static void
ivi_shell_surface_configure(struct weston_surface *, int32_t, int32_t);
static struct ivi_shell_surface *
get_ivi_shell_surface(struct weston_surface *surface)
{
if (surface->configure == ivi_shell_surface_configure)
return surface->configure_private;
return NULL;
}
static void
ivi_shell_surface_configure(struct weston_surface *surface,
int32_t sx, int32_t sy)
{
struct ivi_shell_surface *ivisurf = get_ivi_shell_surface(surface);
struct weston_view *view;
float from_x;
float from_y;
float to_x;
float to_y;
if (surface->width == 0 || surface->height == 0 || ivisurf == NULL)
return;
view = ivisurf->shell->ivi_layout->get_weston_view(ivisurf->layout_surface);
if (view == NULL)
return;
if (ivisurf->width != surface->width ||
ivisurf->height != surface->height) {
ivisurf->width = surface->width;
ivisurf->height = surface->height;
weston_view_to_global_float(view, 0, 0, &from_x, &from_y);
weston_view_to_global_float(view, sx, sy, &to_x, &to_y);
weston_view_set_position(view,
view->geometry.x + to_x - from_x,
view->geometry.y + to_y - from_y);
weston_view_update_transform(view);
ivisurf->shell->ivi_layout->surface_configure(ivisurf->layout_surface,
surface->width, surface->height);
}
}
/*
* 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) {
ivisurf->resource = NULL;
}
}
/* 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->surface!=NULL) {
ivisurf->surface->configure = NULL;
ivisurf->surface->configure_private = NULL;
ivisurf->surface = NULL;
}
wl_list_remove(&ivisurf->surface_destroy_listener.link);
wl_list_remove(&ivisurf->link);
if (ivisurf->resource != NULL) {
wl_resource_set_user_data(ivisurf->resource, NULL);
ivisurf->resource = NULL;
}
free(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 = shell->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;
ivisurf->configured_listener.notify = surface_configure_notify;
ivisurf->shell->ivi_layout->add_surface_configured_listener(layout_surface,
&ivisurf->configured_listener);
/*
* 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->configure = ivi_shell_surface_configure;
weston_surface->configure_private = ivisurf;
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);
}
struct weston_view *
get_default_view(struct weston_surface *surface)
{
struct ivi_shell_surface *shsurf;
struct weston_view *view;
if (!surface || wl_list_empty(&surface->views))
return NULL;
shsurf = get_ivi_shell_surface(surface);
if (shsurf && shsurf->layout_surface) {
view = shsurf->shell->ivi_layout->get_weston_view(shsurf->layout_surface);
if (view)
return view;
}
wl_list_for_each(view, &surface->views, surface_link) {
if (weston_view_is_mapped(view))
return view;
}
return container_of(surface->views.next,
struct weston_view, surface_link);
}
/*
* 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;
input_panel_destroy(shell);
wl_list_for_each_safe(ivisurf, next, &shell->ivi_surface_list, link) {
wl_list_remove(&ivisurf->link);
free(ivisurf);
}
free(shell);
}
static void
init_ivi_shell(struct weston_compositor *compositor, struct ivi_shell *shell)
{
shell->compositor = compositor;
wl_list_init(&shell->ivi_surface_list);
weston_layer_init(&shell->input_panel_layer, NULL);
}
static int
ivi_shell_setting_create(struct ivi_shell_setting *dest,
struct weston_compositor *compositor)
{
int result = 0;
struct weston_config *config = compositor->config;
struct weston_config_section *section;
if (NULL == dest)
return -1;
section = weston_config_get_section(config, "ivi-shell", NULL, NULL);
if (weston_config_section_get_string(
section, "ivi-module", &dest->ivi_module, NULL) != 0)
{
result = -1;
}
return result;
}
/*
* Initialization of ivi-shell.
*/
static int
ivi_load_modules(struct weston_compositor *compositor, const char *modules,
int *argc, char *argv[])
{
const char *p, *end;
char buffer[256];
int (*module_init)(struct weston_compositor *compositor,
int *argc, char *argv[]);
if (modules == NULL)
return 0;
p = modules;
while (*p) {
end = strchrnul(p, ',');
snprintf(buffer, sizeof buffer, "%.*s", (int)(end - p), p);
module_init = weston_load_module(buffer, "module_init");
if (module_init)
module_init(compositor, argc, argv);
p = end;
while (*p == ',')
p++;
}
return 0;
}
WL_EXPORT int
module_init(struct weston_compositor *compositor,
int *argc, char *argv[])
{
struct ivi_shell *shell;
char ivi_layout_path[PATH_MAX];
void *module;
struct ivi_shell_setting setting = { };
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);
if (input_panel_setup(shell) < 0)
return -1;
if (wl_global_create(compositor->wl_display,
&ivi_application_interface, 1,
shell, bind_ivi_application) == NULL)
return -1;
if (ivi_shell_setting_create(&setting, compositor) != 0)
return -1;
/*
* load module:ivi-layout
* ivi_layout_interface is referred by ivi-shell to use ivi-layout.
* The reason why the following code is written newly without
* using weston_load_module is it doesn't open library with
* RTLD_GLOBAL option.
*/
snprintf(ivi_layout_path, sizeof ivi_layout_path,
"%s/%s", MODULEDIR, "ivi-layout.so");
module = dlopen(ivi_layout_path, RTLD_NOW | RTLD_NOLOAD);
if (module) {
weston_log("ivi-shell: Module '%s' already loaded\n",
ivi_layout_path);
dlclose(module);
return -1;
}
weston_log("ivi-shell: Loading module '%s'\n", ivi_layout_path);
module = dlopen(ivi_layout_path, RTLD_NOW | RTLD_GLOBAL);
if (!module) {
weston_log("ivi-shell: Failed to load module: %s\n", dlerror());
return -1;
}
shell->ivi_layout = dlsym(module,"ivi_layout_interface");
if (!shell->ivi_layout){
weston_log("ivi-shell: couldn't find ivi_layout_interface in '%s'\n", ivi_layout_path);
free(setting.ivi_module);
dlclose(module);
return -1;
}
shell->ivi_layout->init_with_compositor(compositor);
/* Call module_init of ivi-modules which are defined in weston.ini */
if (ivi_load_modules(compositor, setting.ivi_module, argc, argv) < 0) {
free(setting.ivi_module);
dlclose(module);
return -1;
}
free(setting.ivi_module);
return 0;
}