compositor: Add support for subscribing to libweston scopes
[src/agl-compositor.git] / src / compositor.c
index c8f9e60..8df333d 100644 (file)
@@ -39,7 +39,9 @@
 
 #include <libweston/backend-drm.h>
 #include <libweston/backend-wayland.h>
+#ifdef HAVE_BACKEND_HEADLESS
 #include <libweston/backend-headless.h>
+#endif
 #ifdef HAVE_BACKEND_X11
 #include <libweston/backend-x11.h>
 #endif
@@ -47,7 +49,7 @@
 #include <libweston/windowed-output-api.h>
 #include <libweston/config-parser.h>
 #include <libweston/weston-log.h>
-#include <weston/weston.h>
+#include <weston.h>
 
 #include "shared/os-compatibility.h"
 #include "shared/helpers.h"
@@ -71,6 +73,101 @@ to_ivi_compositor(struct weston_compositor *ec)
        return weston_compositor_get_user_data(ec);
 }
 
+static void
+sigint_helper(int sig)
+{
+       raise(SIGUSR2);
+}
+
+void
+ivi_layout_save(struct ivi_compositor *ivi, struct ivi_output *output)
+{
+       struct ivi_output *new_output;
+       ivi->need_ivi_output_relayout = true;
+
+       new_output = zalloc(sizeof(*new_output));
+
+       new_output->ivi = ivi;
+       new_output->background = output->background;
+
+       new_output->top = output->top;
+       new_output->bottom = output->bottom;
+       new_output->left = output->left;
+       new_output->right = output->right;
+
+       new_output->active = output->active;
+       new_output->previous_active = output->previous_active;
+       new_output->name = strdup(output->name);
+       if (output->app_ids)
+               new_output->app_ids = strdup(output->app_ids);
+
+       new_output->area = output->area;
+       new_output->area_saved = output->area_saved;
+       new_output->area_activation = output->area_activation;
+
+       weston_log("saving output layout for output %s\n", new_output->name);
+
+       wl_list_insert(&ivi->saved_outputs, &new_output->link);
+}
+
+void
+ivi_layout_restore(struct ivi_compositor *ivi, struct ivi_output *n_output)
+{
+       struct ivi_output *output = NULL;
+       struct ivi_output *iter_output;
+
+       if (!ivi->need_ivi_output_relayout)
+               return;
+
+       ivi->need_ivi_output_relayout = false;
+
+       wl_list_for_each(iter_output, &ivi->saved_outputs, link) {
+               if (strcmp(n_output->name, iter_output->name) == 0) {
+                       output = iter_output;
+                       break;
+               }
+       }
+
+       if (!output)
+               return;
+
+       weston_log("restoring output layout for output %s\n", output->name);
+       n_output->background = output->background;
+
+       n_output->top = output->top;
+       n_output->bottom = output->bottom;
+       n_output->left = output->left;
+       n_output->right = output->right;
+
+       n_output->active = output->active;
+       n_output->previous_active = output->previous_active;
+       if (output->app_ids)
+               n_output->app_ids = strdup(output->app_ids);
+
+       n_output->area = output->area;
+       n_output->area_saved = output->area_saved;
+       n_output->area_activation = output->area_activation;
+
+       free(output->app_ids);
+       free(output->name);
+       wl_list_remove(&output->link);
+       free(output);
+}
+
+void
+ivi_layout_destroy_saved_outputs(struct ivi_compositor *ivi)
+{
+       struct ivi_output *output, *output_next;
+
+       wl_list_for_each_safe(output, output_next, &ivi->saved_outputs, link) {
+               free(output->app_ids);
+               free(output->name);
+
+               wl_list_remove(&output->link);
+               free(output);
+       }
+}
+
 static void
 handle_output_destroy(struct wl_listener *listener, void *data)
 {
@@ -79,11 +176,14 @@ handle_output_destroy(struct wl_listener *listener, void *data)
        output = wl_container_of(listener, output, output_destroy);
        assert(output->output == data);
 
-       if (output->fullscreen_view.fs->view) {
+       if (output->fullscreen_view.fs &&
+           output->fullscreen_view.fs->view) {
                weston_surface_destroy(output->fullscreen_view.fs->view->surface);
                output->fullscreen_view.fs->view = NULL;
        }
 
+       ivi_layout_save(output->ivi, output);
+
        output->output = NULL;
        wl_list_remove(&output->output_destroy.link);
 }
@@ -104,19 +204,19 @@ static void
 ivi_output_configure_app_id(struct ivi_output *ivi_output)
 {
        if (ivi_output->config) {
-               if (ivi_output->app_id != NULL)
+               if (ivi_output->app_ids != NULL)
                        return;
 
                weston_config_section_get_string(ivi_output->config,
                                                 "agl-shell-app-id",
-                                                &ivi_output->app_id,
+                                                &ivi_output->app_ids,
                                                 NULL);
 
-               if (ivi_output->app_id == NULL)
+               if (ivi_output->app_ids == NULL)
                        return;
 
                weston_log("Will place app_id %s on output %s\n",
-                               ivi_output->app_id, ivi_output->name);
+                               ivi_output->app_ids, ivi_output->name);
        }
 }
 
@@ -299,14 +399,14 @@ static int
 parse_transform(const char *transform, uint32_t *out)
 {
        static const struct { const char *name; uint32_t token; } transforms[] = {
-               { "normal",     WL_OUTPUT_TRANSFORM_NORMAL },
-               { "90",         WL_OUTPUT_TRANSFORM_90 },
-               { "180",        WL_OUTPUT_TRANSFORM_180 },
-               { "270",        WL_OUTPUT_TRANSFORM_270 },
-               { "flipped",    WL_OUTPUT_TRANSFORM_FLIPPED },
-               { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 },
-               { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
-               { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
+               { "normal",             WL_OUTPUT_TRANSFORM_NORMAL },
+               { "rotate-90",          WL_OUTPUT_TRANSFORM_90 },
+               { "rotate-180",         WL_OUTPUT_TRANSFORM_180 },
+               { "rotate-270",         WL_OUTPUT_TRANSFORM_270 },
+               { "flipped",            WL_OUTPUT_TRANSFORM_FLIPPED },
+               { "flipped-rotate-90",  WL_OUTPUT_TRANSFORM_FLIPPED_90 },
+               { "flipped-rotate-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
+               { "flipped-rotate-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
        };
 
        for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
@@ -319,6 +419,23 @@ parse_transform(const char *transform, uint32_t *out)
        return -1;
 }
 
+static int
+parse_activation_area(const char *geometry, struct ivi_output *output)
+{
+       int n;
+       unsigned width, height, x, y;
+
+       n = sscanf(geometry, "%ux%u+%u,%u", &width, &height, &x, &y);
+       if (n != 4) {
+               return -1;
+       }
+       output->area_activation.width = width;
+       output->area_activation.height = height;
+       output->area_activation.x = x;
+       output->area_activation.y = y;
+       return 0;
+}
+
 static int
 configure_output(struct ivi_output *output)
 {
@@ -342,6 +459,10 @@ configure_output(struct ivi_output *output)
                if (parse_transform(t, &transform) < 0)
                        weston_log("Invalid transform \"%s\" for output %s\n",
                                   t, output->name);
+               weston_config_section_get_string(section, "activation-area", &t, "");
+               if (parse_activation_area(t, output) < 0)
+                       weston_log("Invalid activation-area \"%s\" for output %s\n",
+                                  t, output->name);
                free(t);
        }
 
@@ -424,6 +545,8 @@ try_attach_enable_heads(struct ivi_output *output)
        for (size_t i = fail_len; i < output->add_len; ++i)
                add_head_destroyed_listener(output->add[i]);
 
+       ivi_layout_restore(output->ivi, output);
+
        output->add_len = fail_len;
        return 0;
 }
@@ -458,8 +581,22 @@ head_disable(struct ivi_compositor *ivi, struct weston_head *head)
 
        weston_head_detach(head);
        if (count_heads(ivi_output->output) == 0) {
-               weston_output_disable(ivi_output->output);
+               if (ivi_output->output) {
+                       /* ivi_output->output destruction may be deferred in
+                        * some cases (see drm_output_destroy()), so we need to
+                        * forcibly trigger the destruction callback now, or
+                        * otherwise would later access data that we are about
+                        * to free
+                        */
+                       struct weston_output *save = ivi_output->output;
+
+                       handle_output_destroy(&ivi_output->output_destroy, save);
+                       weston_output_destroy(save);
+               }
        }
+       wl_list_remove(&ivi_output->link);
+       free(ivi_output->app_ids);
+       free(ivi_output);
 }
 
 static struct weston_config_section *
@@ -701,7 +838,7 @@ remote_output_init(struct ivi_output *ivi_output,
                goto err;
        }
 
-       if (weston_output_enable(ivi_output->output) < 0) {
+       if ((ret = weston_output_enable(ivi_output->output)) < 0) {
                weston_log("Enabling remoted output \"%s\" failed.\n",
                                output_name);
                goto err;
@@ -752,6 +889,10 @@ ivi_enable_remote_outputs(struct ivi_compositor *ivi)
                }
 
                ivi_output = zalloc(sizeof(*ivi_output));
+               if (!ivi_output) {
+                       free(_name);
+                       continue;
+               }
 
                ivi_output->ivi = ivi;
                ivi_output->name = _name;
@@ -804,6 +945,10 @@ ivi_enable_waltham_outputs(struct ivi_compositor *ivi)
                }
 
                ivi_output = zalloc(sizeof(*ivi_output));
+               if (!ivi_output) {
+                       free(_name);
+                       continue;
+               }
 
                ivi_output->ivi = ivi;
                ivi_output->name = _name;
@@ -866,14 +1011,15 @@ load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
        int use_current_mode = 0;
        int use_pixman = 0;
        bool use_shadow;
+       bool without_input = false;
        int ret;
 
        const struct weston_option options[] = {
                { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
-               { WESTON_OPTION_INTEGER, "tty", 0, &config.tty },
                { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
                { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
                { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
+               { WESTON_OPTION_BOOLEAN, "continue-without-input", false, &without_input }
        };
 
        parse_options(options, ARRAY_LENGTH(options), argc, argv);
@@ -888,6 +1034,9 @@ load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
        weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
        config.use_pixman_shadow = use_shadow;
 
+       if (without_input)
+               ivi->compositor->require_input = !without_input;
+
        ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
                                             &config.base);
        if (ret < 0)
@@ -1087,6 +1236,7 @@ load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 }
 #endif
 
+#ifdef HAVE_BACKEND_HEADLESS
 static int
 load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv)
 {
@@ -1134,6 +1284,13 @@ load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv)
 
        return 0;
 }
+#else
+static int
+load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv)
+{
+       return -1;
+}
+#endif
 
 static int
 load_backend(struct ivi_compositor *ivi, const char *backend,
@@ -1217,11 +1374,12 @@ choose_default_backend(void)
 }
 
 static int
-compositor_init_config(struct weston_compositor *compositor,
-                      struct weston_config *config)
+compositor_init_config(struct ivi_compositor *ivi)
 {
        struct xkb_rule_names xkb_names;
        struct weston_config_section *section;
+       struct weston_compositor *compositor = ivi->compositor;
+       struct weston_config *config = ivi->config;
        int repaint_msec;
        bool vt_switching;
        bool require_input;
@@ -1254,6 +1412,11 @@ compositor_init_config(struct weston_compositor *compositor,
        /* agl-compositor.ini [core] */
        section = weston_config_get_section(config, "core", NULL, NULL);
 
+       weston_config_section_get_bool(section, "disable-cursor",
+                                      &ivi->disable_cursor, false);
+       weston_config_section_get_bool(section, "activate-by-default",
+                                      &ivi->activate_by_default, true);
+
        weston_config_section_get_bool(section, "require-input", &require_input, true);
        compositor->require_input = require_input;
 
@@ -1285,18 +1448,25 @@ to_ivi_surface(struct weston_surface *surface)
 
 static void
 activate_binding(struct weston_seat *seat,
-                struct weston_view *focus_view)
+                struct weston_view *focus_view, uint32_t flags)
 {
-       struct weston_surface *focus = focus_view->surface;
-       struct weston_surface *main_surface =
-               weston_surface_get_main_surface(focus);
-       struct ivi_surface *surface;
+       struct weston_surface *focus_surface;
+       struct weston_surface *main_surface;
+       struct ivi_surface *ivi_surface;
+       struct ivi_shell_seat *ivi_seat = get_ivi_shell_seat(seat);
+
+       if (!focus_view)
+               return;
 
-       surface = to_ivi_surface(main_surface);
-       if (!surface)
+       focus_surface = focus_view->surface;
+       main_surface = weston_surface_get_main_surface(focus_surface);
+
+       ivi_surface = to_ivi_surface(main_surface);
+       if (!ivi_surface)
                return;
 
-       weston_seat_set_keyboard_focus(seat, focus);
+       if (ivi_seat)
+               ivi_shell_activate_surface(ivi_surface, ivi_seat, flags);
 }
 
 static void
@@ -1309,7 +1479,8 @@ click_to_activate_binding(struct weston_pointer *pointer,
        if (pointer->focus == NULL)
                return;
 
-       activate_binding(pointer->seat, pointer->focus);
+       activate_binding(pointer->seat, pointer->focus,
+                        WESTON_ACTIVATE_FLAG_CLICKED);
 }
 
 static void
@@ -1322,7 +1493,8 @@ touch_to_activate_binding(struct weston_touch *touch,
        if (touch->focus == NULL)
                return;
 
-       activate_binding(touch->seat, touch->focus);
+       activate_binding(touch->seat, touch->focus,
+                        WESTON_ACTIVATE_FLAG_NONE);
 }
 
 static void
@@ -1570,8 +1742,37 @@ copy_command_line(int argc, char * const argv[])
        return str;
 }
 
+static void
+weston_log_setup_scopes(struct weston_log_context *log_ctx,
+                       struct weston_log_subscriber *subscriber,
+                       const char *names)
+{
+       assert(log_ctx);
+       assert(subscriber);
+
+       char *tokenize = strdup(names);
+       char *token = strtok(tokenize, ",");
+       while (token) {
+               weston_log_subscribe(log_ctx, subscriber, token);
+               token = strtok(NULL, ",");
+       }
+       free(tokenize);
+}
+
+static void
+weston_log_subscribe_to_scopes(struct weston_log_context *log_ctx,
+                               struct weston_log_subscriber *logger,
+                               const char *debug_scopes)
+{
+        if (logger && debug_scopes)
+                weston_log_setup_scopes(log_ctx, logger, debug_scopes);
+        else
+                weston_log_subscribe(log_ctx, logger, "log");
+}
+
+
 WL_EXPORT
-int wet_main(int argc, char *argv[])
+int wet_main(int argc, char *argv[], const struct weston_testsuite_data *test_data)
 {
        struct ivi_compositor ivi = { 0 };
        char *cmdline;
@@ -1585,6 +1786,7 @@ int wet_main(int argc, char *argv[])
        char *log = NULL;
        char *modules = NULL;
        char *option_modules = NULL;
+       char *debug_scopes = NULL;
        int help = 0;
        int version = 0;
        int no_config = 0;
@@ -1594,6 +1796,7 @@ int wet_main(int argc, char *argv[])
        struct weston_log_subscriber *logger;
        int ret = EXIT_FAILURE;
        bool xwayland = false;
+       struct sigaction action;
 
        const struct weston_option core_options[] = {
                { WESTON_OPTION_STRING, "backend", 'B', &backend },
@@ -1605,9 +1808,11 @@ int wet_main(int argc, char *argv[])
                { WESTON_OPTION_BOOLEAN, "debug", 0, &debug },
                { WESTON_OPTION_STRING, "config", 'c', &config_file },
                { WESTON_OPTION_STRING, "modules", 0, &option_modules },
+               { WESTON_OPTION_STRING, "debug-scopes", 'l', &debug_scopes },
        };
 
        wl_list_init(&ivi.outputs);
+       wl_list_init(&ivi.saved_outputs);
        wl_list_init(&ivi.surfaces);
        wl_list_init(&ivi.pending_surfaces);
        wl_list_init(&ivi.popup_pending_apps);
@@ -1615,6 +1820,7 @@ int wet_main(int argc, char *argv[])
        wl_list_init(&ivi.split_pending_apps);
        wl_list_init(&ivi.remote_pending_apps);
        wl_list_init(&ivi.desktop_clients);
+       wl_list_init(&ivi.child_process_list);
 
        /* Prevent any clients we spawn getting our stdin */
        os_fd_set_cloexec(STDIN_FILENO);
@@ -1627,24 +1833,25 @@ int wet_main(int argc, char *argv[])
 
        if (version) {
                printf(PACKAGE_STRING "\n");
-               return EXIT_SUCCESS;
+               ret = EXIT_SUCCESS;
+               goto exit_signals;
        }
 
-       log_ctx = weston_log_ctx_compositor_create();
+       log_ctx = weston_log_ctx_create();
        if (!log_ctx) {
                fprintf(stderr, "Failed to initialize weston debug framework.\n");
-               return ret;
+               goto exit_signals;
        }
 
-        log_scope = weston_compositor_add_log_scope(log_ctx, "log",
-                                                   "agl-compositor log\n",
-                                                   NULL, NULL, NULL);
+        log_scope = weston_log_ctx_add_log_scope(log_ctx, "log",
+                                                "agl-compositor log\n",
+                                                NULL, NULL, NULL);
 
        log_file_open(log);
        weston_log_set_handler(vlog, vlog_continue);
 
        logger = weston_log_subscriber_create_log(logfile);
-       weston_log_subscribe(log_ctx, logger, "log");
+       weston_log_subscribe_to_scopes(log_ctx, logger, debug_scopes);
 
        weston_log("Command line: %s\n", cmdline);
        free(cmdline);
@@ -1658,9 +1865,6 @@ int wet_main(int argc, char *argv[])
                if (!backend)
                        backend = choose_default_backend();
        }
-       /* from [core] */
-       weston_config_section_get_bool(section, "hide-cursor", &ivi.hide_cursor, false);
-       weston_config_section_get_bool(section, "activate-by-default", &ivi.activate_by_default, true);
 
        display = wl_display_create();
        loop = wl_display_get_event_loop(display);
@@ -1672,22 +1876,37 @@ int wet_main(int argc, char *argv[])
 
        signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
                                              display);
-       signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal,
+       signals[1] = wl_event_loop_add_signal(loop, SIGUSR2, on_term_signal,
                                              display);
-       signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal,
+       signals[2] = wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler,
                                              display);
 
+       /* When debugging the compositor, if use wl_event_loop_add_signal() to
+        * catch SIGINT, the debugger can't catch it, and attempting to stop
+        * the compositor from within the debugger results in weston exiting
+        * cleanly.
+        *
+        * Instead, use the sigaction() function, which sets up the signal in a
+        * way that gdb can successfully catch, but have the handler for SIGINT
+        * send SIGUSR2 (xwayland uses SIGUSR1), which we catch via
+        * wl_event_loop_add_signal().
+        */
+       action.sa_handler = sigint_helper;
+       sigemptyset(&action.sa_mask);
+       action.sa_flags = 0;
+       sigaction(SIGINT, &action, NULL);
+
        for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
                if (!signals[i])
                        goto error_signals;
 
-       ivi.compositor = weston_compositor_create(display, log_ctx, &ivi);
+       ivi.compositor = weston_compositor_create(display, log_ctx, &ivi, test_data);
        if (!ivi.compositor) {
                weston_log("fatal: failed to create compositor.\n");
                goto error_signals;
        }
 
-       if (compositor_init_config(ivi.compositor, ivi.config) < 0)
+       if (compositor_init_config(&ivi) < 0)
                goto error_compositor;
 
        if (load_backend(&ivi, backend, &argc, argv) < 0) {
@@ -1738,7 +1957,12 @@ int wet_main(int argc, char *argv[])
        weston_compositor_wake(ivi.compositor);
 
        ivi_shell_create_global(&ivi);
-       ivi_launch_shell_client(&ivi);
+
+       ivi_launch_shell_client(&ivi, "shell-client",
+                               &ivi.shell_client.client);
+       ivi_launch_shell_client(&ivi, "shell-client-ext",
+                               &ivi.shell_client_ext.client);
+
        if (debug)
                ivi_screenshooter_create(&ivi);
        ivi_agl_systemd_notify(&ivi);
@@ -1750,15 +1974,18 @@ int wet_main(int argc, char *argv[])
        wl_display_destroy_clients(display);
 
 error_compositor:
-       weston_compositor_tear_down(ivi.compositor);
-
-       weston_compositor_log_scope_destroy(log_scope);
-       log_scope = NULL;
+       free(backend);
+       backend = NULL;
+       free(modules);
+       modules = NULL;
 
-       weston_log_ctx_compositor_destroy(ivi.compositor);
        weston_compositor_destroy(ivi.compositor);
 
-       weston_log_subscriber_destroy_log(logger);
+       weston_log_scope_destroy(log_scope);
+       log_scope = NULL;
+
+       weston_log_subscriber_destroy(logger);
+       weston_log_ctx_destroy(log_ctx);
 
        ivi_policy_destroy(ivi.policy);
 
@@ -1773,5 +2000,10 @@ error_signals:
        if (ivi.config)
                weston_config_destroy(ivi.config);
 
+exit_signals:
+       free(log);
+       free(config_file);
+       free(socket_name);
+       free(option_modules);
        return ret;
 }