/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ #include "config.h" #ifdef HAVE_MALLINFO #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include "shell-a11y.h" #include "shell-global.h" #include "shell-perf-log.h" #include "st.h" extern GType gnome_shell_plugin_get_type (void); #define SHELL_DBUS_SERVICE "org.gnome.Shell" #define MAGNIFIER_DBUS_SERVICE "org.gnome.Magnifier" static void shell_dbus_init (void) { GError *error = NULL; DBusGConnection *session; DBusGProxy *bus; guint32 request_name_result; /** TODO: * In the future we should use GDBus for this. However, in * order to do that, we need to port all of the JavaScript * code. Otherwise, the name will be claimed on the wrong * connection. */ session = dbus_g_bus_get (DBUS_BUS_SESSION, NULL); bus = dbus_g_proxy_new_for_name (session, DBUS_SERVICE_DBUS, DBUS_PATH_DBUS, DBUS_INTERFACE_DBUS); if (!dbus_g_proxy_call (bus, "RequestName", &error, G_TYPE_STRING, SHELL_DBUS_SERVICE, G_TYPE_UINT, 0, G_TYPE_INVALID, G_TYPE_UINT, &request_name_result, G_TYPE_INVALID)) { g_print ("failed to acquire org.gnome.Shell: %s\n", error->message); /* If we somehow got started again, it's not an error to be running * already. So just exit 0. */ exit (0); } /* Also grab org.gnome.Panel to replace any existing panel process, * unless a special environment variable is passed. The environment * variable is used by the gnome-shell (no --replace) launcher in * Xephyr */ if (!dbus_g_proxy_call (bus, "RequestName", &error, G_TYPE_STRING, "org.gnome.Panel", G_TYPE_UINT, DBUS_NAME_FLAG_REPLACE_EXISTING | DBUS_NAME_FLAG_DO_NOT_QUEUE, G_TYPE_INVALID, G_TYPE_UINT, &request_name_result, G_TYPE_INVALID)) { g_print ("failed to acquire org.gnome.Panel: %s\n", error->message); exit (1); } /* ...and the org.gnome.Magnifier service. */ if (!dbus_g_proxy_call (bus, "RequestName", &error, G_TYPE_STRING, MAGNIFIER_DBUS_SERVICE, G_TYPE_UINT, 0, G_TYPE_INVALID, G_TYPE_UINT, &request_name_result, G_TYPE_INVALID)) { g_print ("failed to acquire %s: %s\n", MAGNIFIER_DBUS_SERVICE, error->message); /* Failing to acquire the magnifer service is not fatal. Log the error, * but keep going. */ } /* ...and the org.freedesktop.Notifications service. */ if (!dbus_g_proxy_call (bus, "RequestName", &error, G_TYPE_STRING, "org.freedesktop.Notifications", G_TYPE_UINT, DBUS_NAME_FLAG_REPLACE_EXISTING | DBUS_NAME_FLAG_DO_NOT_QUEUE, G_TYPE_INVALID, G_TYPE_UINT, &request_name_result, G_TYPE_INVALID)) { g_print ("failed to acquire org.freedesktop.Notifications: %s\n", error->message); } g_object_unref (bus); } static void constrain_tooltip (StTooltip *tooltip, const ClutterGeometry *geometry, ClutterGeometry *adjusted_geometry, gpointer data) { const ClutterGeometry *tip_area = st_tooltip_get_tip_area (tooltip); ShellGlobal *global = shell_global_get (); MetaScreen *screen = shell_global_get_screen (global); int n_monitors = meta_screen_get_n_monitors (screen); int i; *adjusted_geometry = *geometry; /* A point that determines what screen we'll constrain to */ int x = tip_area->x + tip_area->width / 2; int y = tip_area->y + tip_area->height / 2; for (i = 0; i < n_monitors; i++) { MetaRectangle rect; meta_screen_get_monitor_geometry (screen, i, &rect); if (x >= rect.x && x < rect.x + rect.width && y >= rect.y && y < rect.y + rect.height) { if (adjusted_geometry->x + adjusted_geometry->width > rect.x + rect.width) adjusted_geometry->x = rect.x + rect.width - adjusted_geometry->width; if (adjusted_geometry->x < rect.x) adjusted_geometry->x = rect.x; if (adjusted_geometry->y + adjusted_geometry->height > rect.y + rect.height) adjusted_geometry->y = rect.y + rect.height - adjusted_geometry->height; if (adjusted_geometry->y < rect.y) adjusted_geometry->y = rect.y; return; } } } static void update_font_options (GtkSettings *settings) { StThemeContext *context; ClutterStage *stage; ClutterBackend *backend; gint dpi; gint hinting; gchar *hint_style_str; cairo_hint_style_t hint_style = CAIRO_HINT_STYLE_NONE; gint antialias; cairo_antialias_t antialias_mode = CAIRO_ANTIALIAS_NONE; cairo_font_options_t *options; g_object_get (settings, "gtk-xft-dpi", &dpi, "gtk-xft-antialias", &antialias, "gtk-xft-hinting", &hinting, "gtk-xft-hintstyle", &hint_style_str, NULL); stage = CLUTTER_STAGE (clutter_stage_get_default ()); context = st_theme_context_get_for_stage (stage); if (dpi != -1) /* GTK stores resolution as 1024 * dots/inch */ st_theme_context_set_resolution (context, dpi / 1024); else st_theme_context_set_default_resolution (context); st_tooltip_set_constrain_func (stage, constrain_tooltip, NULL, NULL); /* Clutter (as of 0.9) passes comprehensively wrong font options * override whatever set_font_flags() did above. * * http://bugzilla.openedhand.com/show_bug.cgi?id=1456 */ backend = clutter_get_default_backend (); options = cairo_font_options_create (); cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_ON); if (hinting >= 0 && !hinting) { hint_style = CAIRO_HINT_STYLE_NONE; } else if (hint_style_str) { if (strcmp (hint_style_str, "hintnone") == 0) hint_style = CAIRO_HINT_STYLE_NONE; else if (strcmp (hint_style_str, "hintslight") == 0) hint_style = CAIRO_HINT_STYLE_SLIGHT; else if (strcmp (hint_style_str, "hintmedium") == 0) hint_style = CAIRO_HINT_STYLE_MEDIUM; else if (strcmp (hint_style_str, "hintfull") == 0) hint_style = CAIRO_HINT_STYLE_FULL; } g_free (hint_style_str); cairo_font_options_set_hint_style (options, hint_style); /* We don't want to turn on subpixel anti-aliasing; since Clutter * doesn't currently have the code to support ARGB masks, * generating them then squashing them back to A8 is pointless. */ antialias_mode = (antialias < 0 || antialias) ? CAIRO_ANTIALIAS_GRAY : CAIRO_ANTIALIAS_NONE; cairo_font_options_set_antialias (options, antialias_mode); clutter_backend_set_font_options (backend, options); cairo_font_options_destroy (options); } static void settings_notify_cb (GtkSettings *settings, GParamSpec *pspec, gpointer data) { update_font_options (settings); } static void shell_fonts_init (void) { GtkSettings *settings; /* Disable text mipmapping; it causes problems on pre-GEM Intel * drivers and we should just be rendering text at the right * size rather than scaling it. If we do effects where we dynamically * zoom labels, then we might want to reconsider. */ clutter_set_font_flags (clutter_get_font_flags () & ~CLUTTER_FONT_MIPMAPPING); settings = gtk_settings_get_default (); g_object_connect (settings, "signal::notify::gtk-xft-dpi", G_CALLBACK (settings_notify_cb), NULL, "signal::notify::gtk-xft-antialias", G_CALLBACK (settings_notify_cb), NULL, "signal::notify::gtk-xft-hinting", G_CALLBACK (settings_notify_cb), NULL, "signal::notify::gtk-xft-hintstyle", G_CALLBACK (settings_notify_cb), NULL, NULL); update_font_options (settings); } static void shell_prefs_init (void) { meta_prefs_override_preference_location ("/apps/mutter/general/attach_modal_dialogs", "/desktop/gnome/shell/windows/attach_modal_dialogs"); meta_prefs_override_preference_location ("/apps/mutter/general/workspaces_only_on_primary", "/desktop/gnome/shell/windows/workspaces_only_on_primary"); meta_prefs_override_preference_location ("/apps/metacity/general/button_layout", "/desktop/gnome/shell/windows/button_layout"); meta_prefs_override_preference_location ("/apps/metacity/general/edge_tiling", "/desktop/gnome/shell/windows/edge_tiling"); meta_prefs_override_preference_location ("/apps/metacity/general/theme", "/desktop/gnome/shell/windows/theme"); } /* This is an IBus workaround. The flow of events with IBus is that every time * it gets gets a key event, it: * * Sends it to the daemon via D-Bus asynchronously * When it gets an reply, synthesizes a new GdkEvent and puts it into the * GDK event queue with gdk_event_put(), including * IBUS_FORWARD_MASK = 1 << 25 in the state to prevent a loop. * * (Normally, IBus uses the GTK+ key snooper mechanism to get the key * events early, but since our key events aren't visible to GTK+ key snoopers, * IBus will instead get the events via the standard * GtkIMContext.filter_keypress() mechanism.) * * There are a number of potential problems here; probably the worst * problem is that IBus doesn't forward the timestamp with the event * so that every key event that gets delivered ends up with * GDK_CURRENT_TIME. This creates some very subtle bugs; for example * if you have IBus running and a keystroke is used to trigger * launching an application, focus stealing prevention won't work * right. http://code.google.com/p/ibus/issues/detail?id=1184 * * In any case, our normal flow of key events is: * * GDK filter function => clutter_x11_handle_event => clutter actor * * So, if we see a key event that gets delivered via the GDK event handler * function - then we know it must be one of these synthesized events, and * we should push it back to clutter. * * To summarize, the full key event flow with IBus is: * * GDK filter function * => Mutter * => gnome_shell_plugin_xevent_filter() * => clutter_x11_handle_event() * => clutter event delivery to actor * => gtk_im_context_filter_event() * => sent to IBus daemon * => response received from IBus daemon * => gdk_event_put() * => GDK event handler * => * => clutter_event_put() * => clutter event delivery to actor * * Anything else we see here we just pass on to the normal GDK event handler * gtk_main_do_event(). */ static void gnome_shell_gdk_event_handler (GdkEvent *event_gdk, gpointer data) { if (event_gdk->type == GDK_KEY_PRESS || event_gdk->type == GDK_KEY_RELEASE) { ClutterActor *stage; Window stage_xwindow; stage = clutter_stage_get_default (); stage_xwindow = clutter_x11_get_stage_window (CLUTTER_STAGE (stage)); if (GDK_WINDOW_XID (event_gdk->key.window) == stage_xwindow) { ClutterDeviceManager *device_manager = clutter_device_manager_get_default (); ClutterInputDevice *keyboard = clutter_device_manager_get_core_device (device_manager, CLUTTER_KEYBOARD_DEVICE); ClutterEvent *event_clutter = clutter_event_new ((event_gdk->type == GDK_KEY_PRESS) ? CLUTTER_KEY_PRESS : CLUTTER_KEY_RELEASE); event_clutter->key.time = event_gdk->key.time; event_clutter->key.flags = CLUTTER_EVENT_NONE; event_clutter->key.stage = CLUTTER_STAGE (stage); event_clutter->key.source = NULL; /* This depends on ClutterModifierType and GdkModifierType being * identical, which they are currently. (They both match the X * modifier state in the low 16-bits and have the same extensions.) */ event_clutter->key.modifier_state = event_gdk->key.state; event_clutter->key.keyval = event_gdk->key.keyval; event_clutter->key.hardware_keycode = event_gdk->key.hardware_keycode; event_clutter->key.unicode_value = gdk_keyval_to_unicode (event_clutter->key.keyval); event_clutter->key.device = keyboard; clutter_event_put (event_clutter); clutter_event_free (event_clutter); return; } } gtk_main_do_event (event_gdk); } static void malloc_statistics_callback (ShellPerfLog *perf_log, gpointer data) { #ifdef HAVE_MALLINFO struct mallinfo info = mallinfo (); shell_perf_log_update_statistic_i (perf_log, "malloc.arenaSize", info.arena); shell_perf_log_update_statistic_i (perf_log, "malloc.mmapSize", info.hblkhd); shell_perf_log_update_statistic_i (perf_log, "malloc.usedSize", info.uordblks); #endif } static void shell_perf_log_init (void) { ShellPerfLog *perf_log = shell_perf_log_get_default (); /* For probably historical reasons, mallinfo() defines the returned values, * even those in bytes as int, not size_t. We're determined not to use * more than 2G of malloc'ed memory, so are OK with that. */ shell_perf_log_define_statistic (perf_log, "malloc.arenaSize", "Amount of memory allocated by malloc() with brk(), in bytes", "i"); shell_perf_log_define_statistic (perf_log, "malloc.mmapSize", "Amount of memory allocated by malloc() with mmap(), in bytes", "i"); shell_perf_log_define_statistic (perf_log, "malloc.usedSize", "Amount of malloc'ed memory currently in use", "i"); shell_perf_log_add_statistics_callback (perf_log, malloc_statistics_callback, NULL, NULL); } static void muted_log_handler (const char *log_domain, GLogLevelFlags log_level, const char *message, gpointer data) { /* Intentionally empty to discard message */ } static gboolean print_version (const gchar *option_name, const gchar *value, gpointer data, GError **error) { g_print ("GNOME Shell %s\n", VERSION); exit (0); } GOptionEntry gnome_shell_options[] = { { "version", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, print_version, N_("Print version"), NULL }, { NULL } }; int main (int argc, char **argv) { GOptionContext *ctx; GError *error = NULL; g_type_init (); bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); ctx = meta_get_option_context (); g_option_context_add_main_entries (ctx, gnome_shell_options, GETTEXT_PACKAGE); if (!g_option_context_parse (ctx, &argc, &argv, &error)) { g_printerr ("%s: %s\n", argv[0], error->message); exit (1); } meta_plugin_type_register (gnome_shell_plugin_get_type ()); /* Prevent meta_init() from causing gtk to load gail and at-bridge */ g_setenv ("NO_GAIL", "1", TRUE); g_setenv ("NO_AT_BRIDGE", "1", TRUE); meta_init (); g_unsetenv ("NO_GAIL"); g_unsetenv ("NO_AT_BRIDGE"); /* FIXME: Add gjs API to set this stuff and don't depend on the * environment. These propagate to child processes. */ g_setenv ("GJS_DEBUG_OUTPUT", "stderr", TRUE); g_setenv ("GJS_DEBUG_TOPICS", "JS ERROR;JS LOG", TRUE); shell_dbus_init (); shell_a11y_init (); shell_fonts_init (); shell_perf_log_init (); shell_prefs_init (); gdk_event_handler_set (gnome_shell_gdk_event_handler, NULL, NULL); g_irepository_prepend_search_path (GNOME_SHELL_PKGLIBDIR); #if HAVE_BLUETOOTH g_irepository_prepend_search_path (BLUETOOTH_DIR); #endif /* Disable debug spew from various libraries */ g_log_set_handler ("Gvc", G_LOG_LEVEL_DEBUG, muted_log_handler, NULL); g_log_set_handler ("GdmUser", G_LOG_LEVEL_DEBUG, muted_log_handler, NULL); g_log_set_handler ("Bluetooth", G_LOG_LEVEL_DEBUG | G_LOG_LEVEL_MESSAGE, muted_log_handler, NULL); /* Initialize the global object */ shell_global_get (); return meta_run (); }