/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ #include "config.h" #include #include #include #include "shell-app-private.h" #include "shell-enum-types.h" #include "shell-global.h" #include "shell-util.h" #include "shell-app-system-private.h" #include "shell-window-tracker-private.h" #include "st.h" typedef enum { MATCH_NONE, MATCH_SUBSTRING, /* Not prefix, substring */ MATCH_MULTIPLE_SUBSTRING, /* Matches multiple criteria with substrings */ MATCH_PREFIX, /* Strict prefix */ MATCH_MULTIPLE_PREFIX, /* Matches multiple criteria, at least one prefix */ } ShellAppSearchMatch; /* This is mainly a memory usage optimization - the user is going to * be running far fewer of the applications at one time than they have * installed. But it also just helps keep the code more logically * separated. */ typedef struct { guint refcount; /* Last time the user interacted with any of this application's windows */ guint32 last_user_time; /* Signal connection to dirty window sort list on workspace changes */ guint workspace_switch_id; GSList *windows; /* Whether or not we need to resort the windows; this is done on demand */ gboolean window_sort_stale : 1; } ShellAppRunningState; /** * SECTION:shell-app * @short_description: Object representing an application * * This object wraps a #GMenuTreeEntry, providing methods and signals * primarily useful for running applications. */ struct _ShellApp { GObject parent; int started_on_workspace; ShellAppState state; GMenuTreeEntry *entry; /* If NULL, this app is backed by one or more * MetaWindow. For purposes of app title * etc., we use the first window added, * because it's most likely to be what we * want (e.g. it will be of TYPE_NORMAL from * the way shell-window-tracker.c works). */ ShellAppRunningState *running_state; char *window_id_string; char *casefolded_name; char *name_collation_key; char *casefolded_description; char *casefolded_exec; }; G_DEFINE_TYPE (ShellApp, shell_app, G_TYPE_OBJECT); enum { PROP_0, PROP_STATE }; enum { WINDOWS_CHANGED, LAST_SIGNAL }; static guint shell_app_signals[LAST_SIGNAL] = { 0 }; static void create_running_state (ShellApp *app); static void unref_running_state (ShellAppRunningState *state); static void shell_app_get_property (GObject *gobject, guint prop_id, GValue *value, GParamSpec *pspec) { ShellApp *app = SHELL_APP (gobject); switch (prop_id) { case PROP_STATE: g_value_set_enum (value, app->state); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec); break; } } const char * shell_app_get_id (ShellApp *app) { if (app->entry) return gmenu_tree_entry_get_desktop_file_id (app->entry); return app->window_id_string; } static MetaWindow * window_backed_app_get_window (ShellApp *app) { g_assert (app->entry == NULL); g_assert (app->running_state); g_assert (app->running_state->windows); return app->running_state->windows->data; } static ClutterActor * window_backed_app_get_icon (ShellApp *app, int size) { MetaWindow *window; ClutterActor *actor; /* During a state transition from running to not-running for * window-backend apps, it's possible we get a request for the icon. * Avoid asserting here and just return an empty image. */ if (app->running_state == NULL) { actor = clutter_texture_new (); g_object_set (actor, "opacity", 0, "width", (float) size, "height", (float) size, NULL); return actor; } window = window_backed_app_get_window (app); actor = st_texture_cache_bind_pixbuf_property (st_texture_cache_get_default (), G_OBJECT (window), "icon"); g_object_set (actor, "width", (float) size, "height", (float) size, NULL); return actor; } /** * shell_app_create_icon_texture: * * Look up the icon for this application, and create a #ClutterTexture * for it at the given size. * * Return value: (transfer none): A floating #ClutterActor */ ClutterActor * shell_app_create_icon_texture (ShellApp *app, int size) { GIcon *icon; ClutterActor *ret; ret = NULL; if (app->entry == NULL) return window_backed_app_get_icon (app, size); icon = g_app_info_get_icon (G_APP_INFO (gmenu_tree_entry_get_app_info (app->entry))); if (icon != NULL) ret = st_texture_cache_load_gicon (st_texture_cache_get_default (), NULL, icon, size); if (ret == NULL) { icon = g_themed_icon_new ("application-x-executable"); ret = st_texture_cache_load_gicon (st_texture_cache_get_default (), NULL, icon, size); g_object_unref (icon); } return ret; } typedef struct { ShellApp *app; int size; } CreateFadedIconData; static CoglHandle shell_app_create_faded_icon_cpu (StTextureCache *cache, const char *key, void *datap, GError **error) { CreateFadedIconData *data = datap; ShellApp *app; GdkPixbuf *pixbuf; int size; CoglHandle texture; gint width, height, rowstride; guint8 n_channels; gboolean have_alpha; gint fade_start; gint fade_range; guint i, j; guint pixbuf_byte_size; guint8 *orig_pixels; guint8 *pixels; GIcon *icon; GtkIconInfo *info; app = data->app; size = data->size; info = NULL; icon = g_app_info_get_icon (G_APP_INFO (gmenu_tree_entry_get_app_info (app->entry))); if (icon != NULL) { info = gtk_icon_theme_lookup_by_gicon (gtk_icon_theme_get_default (), icon, size, GTK_ICON_LOOKUP_FORCE_SIZE); } if (info == NULL) { icon = g_themed_icon_new ("application-x-executable"); info = gtk_icon_theme_lookup_by_gicon (gtk_icon_theme_get_default (), icon, size, GTK_ICON_LOOKUP_FORCE_SIZE); g_object_unref (icon); } if (info == NULL) return COGL_INVALID_HANDLE; pixbuf = gtk_icon_info_load_icon (info, NULL); gtk_icon_info_free (info); if (pixbuf == NULL) return COGL_INVALID_HANDLE; width = gdk_pixbuf_get_width (pixbuf); height = gdk_pixbuf_get_height (pixbuf); rowstride = gdk_pixbuf_get_rowstride (pixbuf); n_channels = gdk_pixbuf_get_n_channels (pixbuf); orig_pixels = gdk_pixbuf_get_pixels (pixbuf); have_alpha = gdk_pixbuf_get_has_alpha (pixbuf); pixbuf_byte_size = (height - 1) * rowstride + + width * ((n_channels * gdk_pixbuf_get_bits_per_sample (pixbuf) + 7) / 8); pixels = g_malloc0 (rowstride * height); memcpy (pixels, orig_pixels, pixbuf_byte_size); fade_start = width / 2; fade_range = width - fade_start; for (i = fade_start; i < width; i++) { for (j = 0; j < height; j++) { guchar *pixel = &pixels[j * rowstride + i * n_channels]; float fade = 1.0 - ((float) i - fade_start) / fade_range; pixel[0] = 0.5 + pixel[0] * fade; pixel[1] = 0.5 + pixel[1] * fade; pixel[2] = 0.5 + pixel[2] * fade; if (have_alpha) pixel[3] = 0.5 + pixel[3] * fade; } } texture = cogl_texture_new_from_data (width, height, COGL_TEXTURE_NONE, have_alpha ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888, COGL_PIXEL_FORMAT_ANY, rowstride, pixels); g_free (pixels); g_object_unref (pixbuf); return texture; } /** * shell_app_get_faded_icon: * @app: A #ShellApp * @size: Size in pixels * * Return an actor with a horizontally faded look. * * Return value: (transfer none): A floating #ClutterActor, or %NULL if no icon */ ClutterActor * shell_app_get_faded_icon (ShellApp *app, int size) { CoglHandle texture; ClutterActor *result; char *cache_key; CreateFadedIconData data; /* Don't fade for window backed apps for now...easier to reuse the * property tracking bits, and this helps us visually distinguish * app-tracked from not. */ if (!app->entry) return window_backed_app_get_icon (app, size); cache_key = g_strdup_printf ("faded-icon:%s,size=%d", shell_app_get_id (app), size); data.app = app; data.size = size; texture = st_texture_cache_load (st_texture_cache_get_default (), cache_key, ST_TEXTURE_CACHE_POLICY_FOREVER, shell_app_create_faded_icon_cpu, &data, NULL); g_free (cache_key); if (texture != COGL_INVALID_HANDLE) { result = clutter_texture_new (); clutter_texture_set_cogl_texture (CLUTTER_TEXTURE (result), texture); } else { result = clutter_texture_new (); g_object_set (result, "opacity", 0, "width", (float) size, "height", (float) size, NULL); } return result; } const char * shell_app_get_name (ShellApp *app) { if (app->entry) return g_app_info_get_name (G_APP_INFO (gmenu_tree_entry_get_app_info (app->entry))); else { MetaWindow *window = window_backed_app_get_window (app); const char *name; name = meta_window_get_wm_class (window); if (!name) name = _("Unknown"); return name; } } const char * shell_app_get_description (ShellApp *app) { if (app->entry) return g_app_info_get_description (G_APP_INFO (gmenu_tree_entry_get_app_info (app->entry))); else return NULL; } /** * shell_app_is_window_backed: * * A window backed application is one which represents just an open * window, i.e. there's no .desktop file assocation, so we don't know * how to launch it again. */ gboolean shell_app_is_window_backed (ShellApp *app) { return app->entry == NULL; } typedef struct { MetaWorkspace *workspace; GSList **transients; } CollectTransientsData; static gboolean collect_transients_on_workspace (MetaWindow *window, gpointer datap) { CollectTransientsData *data = datap; if (data->workspace && meta_window_get_workspace (window) != data->workspace) return TRUE; *data->transients = g_slist_prepend (*data->transients, window); return TRUE; } /* The basic idea here is that when we're targeting a window, * if it has transients we want to pick the most recent one * the user interacted with. * This function makes raising GEdit with the file chooser * open work correctly. */ static MetaWindow * find_most_recent_transient_on_same_workspace (MetaDisplay *display, MetaWindow *reference) { GSList *transients, *transients_sorted, *iter; MetaWindow *result; CollectTransientsData data; transients = NULL; data.workspace = meta_window_get_workspace (reference); data.transients = &transients; meta_window_foreach_transient (reference, collect_transients_on_workspace, &data); transients_sorted = meta_display_sort_windows_by_stacking (display, transients); /* Reverse this so we're top-to-bottom (yes, we should probably change the order * returned from the sort_windows_by_stacking function) */ transients_sorted = g_slist_reverse (transients_sorted); g_slist_free (transients); transients = NULL; result = NULL; for (iter = transients_sorted; iter; iter = iter->next) { MetaWindow *window = iter->data; MetaWindowType wintype = meta_window_get_window_type (window); /* Don't want to focus UTILITY types, like the Gimp toolbars */ if (wintype == META_WINDOW_NORMAL || wintype == META_WINDOW_DIALOG) { result = window; break; } } g_slist_free (transients_sorted); return result; } /** * shell_app_activate_window: * @app: a #ShellApp * @window: (allow-none): Window to be focused * @timestamp: Event timestamp * * Bring all windows for the given app to the foreground, * but ensure that @window is on top. If @window is %NULL, * the window with the most recent user time for the app * will be used. * * This function has no effect if @app is not currently running. */ void shell_app_activate_window (ShellApp *app, MetaWindow *window, guint32 timestamp) { GSList *windows; if (shell_app_get_state (app) != SHELL_APP_STATE_RUNNING) return; windows = shell_app_get_windows (app); if (window == NULL && windows) window = windows->data; if (!g_slist_find (windows, window)) return; else { GSList *iter; ShellGlobal *global = shell_global_get (); MetaScreen *screen = shell_global_get_screen (global); MetaDisplay *display = meta_screen_get_display (screen); MetaWorkspace *active = meta_screen_get_active_workspace (screen); MetaWorkspace *workspace = meta_window_get_workspace (window); guint32 last_user_timestamp = meta_display_get_last_user_time (display); MetaWindow *most_recent_transient; if (meta_display_xserver_time_is_before (display, timestamp, last_user_timestamp)) { meta_window_set_demands_attention (window); return; } /* Now raise all the other windows for the app that are on * the same workspace, in reverse order to preserve the stacking. */ for (iter = windows; iter; iter = iter->next) { MetaWindow *other_window = iter->data; if (other_window != window) meta_window_raise (other_window); } /* If we have a transient that the user's interacted with more recently than * the window, pick that. */ most_recent_transient = find_most_recent_transient_on_same_workspace (display, window); if (most_recent_transient && meta_display_xserver_time_is_before (display, meta_window_get_user_time (window), meta_window_get_user_time (most_recent_transient))) window = most_recent_transient; if (!shell_window_tracker_is_window_interesting (window)) { /* We won't get notify::user-time signals for uninteresting windows, * which means that an app's last_user_time won't get updated. * Update it here instead. */ app->running_state->last_user_time = timestamp; } if (active != workspace) meta_workspace_activate_with_focus (workspace, window, timestamp); else meta_window_activate (window, timestamp); } } /** * shell_app_activate: * @app: a #ShellApp * * Like shell_app_activate_full(), but using the default workspace and * event timestamp. */ void shell_app_activate (ShellApp *app) { return shell_app_activate_full (app, -1, 0); } /** * shell_app_activate_full: * @app: a #ShellApp * @workspace: launch on this workspace, or -1 for default. Ignored if * activating an existing window * @timestamp: Event timestamp * * Perform an appropriate default action for operating on this application, * dependent on its current state. For example, if the application is not * currently running, launch it. If it is running, activate the most * recently used NORMAL window (or if that window has a transient, the most * recently used transient for that window). */ void shell_app_activate_full (ShellApp *app, int workspace, guint32 timestamp) { ShellGlobal *global; global = shell_global_get (); if (timestamp == 0) timestamp = shell_global_get_current_time (global); switch (app->state) { case SHELL_APP_STATE_STOPPED: { GError *error = NULL; if (!shell_app_launch (app, timestamp, NULL, workspace, NULL, &error)) { char *msg; msg = g_strdup_printf (_("Failed to launch '%s'"), shell_app_get_name (app)); shell_global_notify_error (global, msg, error->message); g_free (msg); g_clear_error (&error); } } break; case SHELL_APP_STATE_STARTING: break; case SHELL_APP_STATE_RUNNING: shell_app_activate_window (app, NULL, timestamp); break; } } /** * shell_app_open_new_window: * @app: a #ShellApp * @workspace: open on this workspace, or -1 for default * * Request that the application create a new window. */ void shell_app_open_new_window (ShellApp *app, int workspace) { g_return_if_fail (app->entry != NULL); /* Here we just always launch the application again, even if we know * it was already running. For most applications this * should have the effect of creating a new window, whether that's * a second process (in the case of Calculator) or IPC to existing * instance (Firefox). There are a few less-sensical cases such * as say Pidgin. Ideally, we have the application express to us * that it supports an explicit new-window action. */ shell_app_launch (app, 0, NULL, workspace, NULL, NULL); } /** * shell_app_get_state: * @app: a #ShellApp * * Returns: State of the application */ ShellAppState shell_app_get_state (ShellApp *app) { return app->state; } typedef struct { ShellApp *app; MetaWorkspace *active_workspace; } CompareWindowsData; static int shell_app_compare_windows (gconstpointer a, gconstpointer b, gpointer datap) { MetaWindow *win_a = (gpointer)a; MetaWindow *win_b = (gpointer)b; CompareWindowsData *data = datap; gboolean ws_a, ws_b; gboolean vis_a, vis_b; ws_a = meta_window_get_workspace (win_a) == data->active_workspace; ws_b = meta_window_get_workspace (win_b) == data->active_workspace; if (ws_a && !ws_b) return -1; else if (!ws_a && ws_b) return 1; vis_a = meta_window_showing_on_its_workspace (win_a); vis_b = meta_window_showing_on_its_workspace (win_b); if (vis_a && !vis_b) return -1; else if (!vis_a && vis_b) return 1; return meta_window_get_user_time (win_b) - meta_window_get_user_time (win_a); } /** * shell_app_get_windows: * @app: * * Get the toplevel, interesting windows which are associated with this * application. The returned list will be sorted first by whether * they're on the active workspace, then by whether they're visible, * and finally by the time the user last interacted with them. * * Returns: (transfer none) (element-type MetaWindow): List of windows */ GSList * shell_app_get_windows (ShellApp *app) { if (app->running_state == NULL) return NULL; if (app->running_state->window_sort_stale) { CompareWindowsData data; data.app = app; data.active_workspace = meta_screen_get_active_workspace (shell_global_get_screen (shell_global_get ())); app->running_state->windows = g_slist_sort_with_data (app->running_state->windows, shell_app_compare_windows, &data); app->running_state->window_sort_stale = FALSE; } return app->running_state->windows; } guint shell_app_get_n_windows (ShellApp *app) { if (app->running_state == NULL) return 0; return g_slist_length (app->running_state->windows); } static gboolean shell_app_has_visible_windows (ShellApp *app) { GSList *iter; if (app->running_state == NULL) return FALSE; for (iter = app->running_state->windows; iter; iter = iter->next) { MetaWindow *window = iter->data; if (meta_window_showing_on_its_workspace (window)) return TRUE; } return FALSE; } gboolean shell_app_is_on_workspace (ShellApp *app, MetaWorkspace *workspace) { GSList *iter; if (shell_app_get_state (app) == SHELL_APP_STATE_STARTING) { if (app->started_on_workspace == -1 || meta_workspace_index (workspace) == app->started_on_workspace) return TRUE; else return FALSE; } if (app->running_state == NULL) return FALSE; for (iter = app->running_state->windows; iter; iter = iter->next) { if (meta_window_get_workspace (iter->data) == workspace) return TRUE; } return FALSE; } /** * shell_app_compare: * @app: * @other: A #ShellApp * * Compare one #ShellApp instance to another, in the following way: * - Running applications sort before not-running applications. * - If one of them has visible windows and the other does not, the one * with visible windows is first. * - Finally, the application which the user interacted with most recently * compares earlier. */ int shell_app_compare (ShellApp *app, ShellApp *other) { gboolean vis_app, vis_other; if (app->state != other->state) { if (app->state == SHELL_APP_STATE_RUNNING) return -1; return 1; } vis_app = shell_app_has_visible_windows (app); vis_other = shell_app_has_visible_windows (other); if (vis_app && !vis_other) return -1; else if (!vis_app && vis_other) return 1; if (app->state == SHELL_APP_STATE_RUNNING) { if (app->running_state->windows && !other->running_state->windows) return -1; else if (!app->running_state->windows && other->running_state->windows) return 1; return other->running_state->last_user_time - app->running_state->last_user_time; } return 0; } ShellApp * _shell_app_new_for_window (MetaWindow *window) { ShellApp *app; app = g_object_new (SHELL_TYPE_APP, NULL); app->window_id_string = g_strdup_printf ("window:%d", meta_window_get_stable_sequence (window)); _shell_app_add_window (app, window); return app; } ShellApp * _shell_app_new (GMenuTreeEntry *info) { ShellApp *app; app = g_object_new (SHELL_TYPE_APP, NULL); app->entry = gmenu_tree_item_ref (info); app->name_collation_key = g_utf8_collate_key (shell_app_get_name (app), -1); return app; } static void shell_app_state_transition (ShellApp *app, ShellAppState state) { if (app->state == state) return; g_return_if_fail (!(app->state == SHELL_APP_STATE_RUNNING && state == SHELL_APP_STATE_STARTING)); app->state = state; if (app->state == SHELL_APP_STATE_STOPPED && app->running_state) { unref_running_state (app->running_state); app->running_state = NULL; } _shell_app_system_notify_app_state_changed (shell_app_system_get_default (), app); g_object_notify (G_OBJECT (app), "state"); } static void shell_app_on_unmanaged (MetaWindow *window, ShellApp *app) { _shell_app_remove_window (app, window); } static void shell_app_on_user_time_changed (MetaWindow *window, GParamSpec *pspec, ShellApp *app) { g_assert (app->running_state != NULL); app->running_state->last_user_time = meta_window_get_user_time (window); /* Ideally we don't want to emit windows-changed if the sort order * isn't actually changing. This check catches most of those. */ if (window != app->running_state->windows->data) { app->running_state->window_sort_stale = TRUE; g_signal_emit (app, shell_app_signals[WINDOWS_CHANGED], 0); } } static void shell_app_on_ws_switch (MetaScreen *screen, int from, int to, MetaMotionDirection direction, gpointer data) { ShellApp *app = SHELL_APP (data); g_assert (app->running_state != NULL); app->running_state->window_sort_stale = TRUE; g_signal_emit (app, shell_app_signals[WINDOWS_CHANGED], 0); } void _shell_app_add_window (ShellApp *app, MetaWindow *window) { guint32 user_time; if (app->running_state && g_slist_find (app->running_state->windows, window)) return; g_object_freeze_notify (G_OBJECT (app)); if (!app->running_state) create_running_state (app); app->running_state->window_sort_stale = TRUE; app->running_state->windows = g_slist_prepend (app->running_state->windows, g_object_ref (window)); g_signal_connect (window, "unmanaged", G_CALLBACK(shell_app_on_unmanaged), app); g_signal_connect (window, "notify::user-time", G_CALLBACK(shell_app_on_user_time_changed), app); user_time = meta_window_get_user_time (window); if (user_time > app->running_state->last_user_time) app->running_state->last_user_time = user_time; if (app->state != SHELL_APP_STATE_STARTING) shell_app_state_transition (app, SHELL_APP_STATE_RUNNING); g_object_thaw_notify (G_OBJECT (app)); g_signal_emit (app, shell_app_signals[WINDOWS_CHANGED], 0); } void _shell_app_remove_window (ShellApp *app, MetaWindow *window) { g_assert (app->running_state != NULL); if (!g_slist_find (app->running_state->windows, window)) return; g_signal_handlers_disconnect_by_func (window, G_CALLBACK(shell_app_on_unmanaged), app); g_signal_handlers_disconnect_by_func (window, G_CALLBACK(shell_app_on_user_time_changed), app); g_object_unref (window); app->running_state->windows = g_slist_remove (app->running_state->windows, window); if (app->running_state->windows == NULL) shell_app_state_transition (app, SHELL_APP_STATE_STOPPED); g_signal_emit (app, shell_app_signals[WINDOWS_CHANGED], 0); } /** * shell_app_get_pids: * @app: a #ShellApp * * Returns: (transfer container) (element-type int): An unordered list of process identifers associated with this application. */ GSList * shell_app_get_pids (ShellApp *app) { GSList *result; GSList *iter; result = NULL; for (iter = shell_app_get_windows (app); iter; iter = iter->next) { MetaWindow *window = iter->data; int pid = meta_window_get_pid (window); /* Note in the (by far) common case, app will only have one pid, so * we'll hit the first element, so don't worry about O(N^2) here. */ if (!g_slist_find (result, GINT_TO_POINTER (pid))) result = g_slist_prepend (result, GINT_TO_POINTER (pid)); } return result; } void _shell_app_handle_startup_sequence (ShellApp *app, SnStartupSequence *sequence) { gboolean starting = !sn_startup_sequence_get_completed (sequence); /* The Shell design calls for on application launch, the app title * appears at top, and no X window is focused. So when we get * a startup-notification for this app, transition it to STARTING * if it's currently stopped, set it as our application focus, * but focus the no_focus window. */ if (starting && shell_app_get_state (app) == SHELL_APP_STATE_STOPPED) { MetaScreen *screen = shell_global_get_screen (shell_global_get ()); MetaDisplay *display = meta_screen_get_display (screen); shell_app_state_transition (app, SHELL_APP_STATE_STARTING); meta_display_focus_the_no_focus_window (display, screen, sn_startup_sequence_get_timestamp (sequence)); app->started_on_workspace = sn_startup_sequence_get_workspace (sequence); } if (!starting) { if (app->running_state && app->running_state->windows) shell_app_state_transition (app, SHELL_APP_STATE_RUNNING); else /* application have > 1 .desktop file */ shell_app_state_transition (app, SHELL_APP_STATE_STOPPED); } } /** * shell_app_request_quit: * @app: A #ShellApp * * Initiate an asynchronous request to quit this application. * The application may interact with the user, and the user * might cancel the quit request from the application UI. * * This operation may not be supported for all applications. * * Returns: %TRUE if a quit request is supported for this application */ gboolean shell_app_request_quit (ShellApp *app) { GSList *iter; if (shell_app_get_state (app) != SHELL_APP_STATE_RUNNING) return FALSE; /* TODO - check for an XSMP connection; we could probably use that */ for (iter = app->running_state->windows; iter; iter = iter->next) { MetaWindow *win = iter->data; if (!shell_window_tracker_is_window_interesting (win)) continue; meta_window_delete (win, shell_global_get_current_time (shell_global_get ())); } return TRUE; } static void _gather_pid_callback (GDesktopAppInfo *gapp, GPid pid, gpointer data) { ShellApp *app; ShellWindowTracker *tracker; g_return_if_fail (data != NULL); app = SHELL_APP (data); tracker = shell_window_tracker_get_default (); _shell_window_tracker_add_child_process_app (tracker, pid, app); } /** * shell_app_launch: * @timestamp: Event timestamp, or 0 for current event timestamp * @uris: (element-type utf8): List of uris to pass to application * @workspace: Start on this workspace, or -1 for default * @startup_id: (out): Returned startup notification ID, or %NULL if none * @error: A #GError */ gboolean shell_app_launch (ShellApp *app, guint timestamp, GList *uris, int workspace, char **startup_id, GError **error) { GDesktopAppInfo *gapp; GdkAppLaunchContext *context; gboolean ret; ShellGlobal *global; MetaScreen *screen; if (startup_id) *startup_id = NULL; if (app->entry == NULL) { MetaWindow *window = window_backed_app_get_window (app); /* We can't pass URIs into a window; shouldn't hit this * code path. If we do, fix the caller to disallow it. */ g_return_val_if_fail (uris == NULL, TRUE); meta_window_activate (window, timestamp); return TRUE; } global = shell_global_get (); screen = shell_global_get_screen (global); if (timestamp == 0) timestamp = shell_global_get_current_time (global); if (workspace < 0) workspace = meta_screen_get_active_workspace_index (screen); context = gdk_app_launch_context_new (); gdk_app_launch_context_set_timestamp (context, timestamp); gdk_app_launch_context_set_desktop (context, workspace); gapp = gmenu_tree_entry_get_app_info (app->entry); ret = g_desktop_app_info_launch_uris_as_manager (gapp, uris, G_APP_LAUNCH_CONTEXT (context), G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL, _gather_pid_callback, app, error); g_object_unref (context); return ret; } /** * shell_app_get_app_info: * @app: a #ShellApp * * Returns: (transfer none): The #GDesktopAppInfo for this app, or %NULL if backed by a window */ GDesktopAppInfo * shell_app_get_app_info (ShellApp *app) { if (app->entry) return gmenu_tree_entry_get_app_info (app->entry); return NULL; } /** * shell_app_get_tree_entry: * @app: a #ShellApp * * Returns: (transfer none): The #GMenuTreeEntry for this app, or %NULL if backed by a window */ GMenuTreeEntry * shell_app_get_tree_entry (ShellApp *app) { return app->entry; } static void create_running_state (ShellApp *app) { MetaScreen *screen; g_assert (app->running_state == NULL); screen = shell_global_get_screen (shell_global_get ()); app->running_state = g_slice_new0 (ShellAppRunningState); app->running_state->refcount = 1; app->running_state->workspace_switch_id = g_signal_connect (screen, "workspace-switched", G_CALLBACK(shell_app_on_ws_switch), app); } static void unref_running_state (ShellAppRunningState *state) { MetaScreen *screen; state->refcount--; if (state->refcount > 0) return; screen = shell_global_get_screen (shell_global_get ()); g_signal_handler_disconnect (screen, state->workspace_switch_id); g_slice_free (ShellAppRunningState, state); } static char * trim_exec_line (const char *str) { const char *start, *end, *pos; if (str == NULL) return NULL; end = strchr (str, ' '); if (end == NULL) end = str + strlen (str); start = str; while ((pos = strchr (start, '/')) && pos < end) start = ++pos; return g_strndup (start, end - start); } static void shell_app_init_search_data (ShellApp *app) { const char *name; const char *exec; const char *comment; char *normalized_exec; GDesktopAppInfo *appinfo; appinfo = gmenu_tree_entry_get_app_info (app->entry); name = g_app_info_get_name (G_APP_INFO (appinfo)); app->casefolded_name = shell_util_normalize_and_casefold (name); comment = g_app_info_get_description (G_APP_INFO (appinfo)); app->casefolded_description = shell_util_normalize_and_casefold (comment); exec = g_app_info_get_executable (G_APP_INFO (appinfo)); normalized_exec = shell_util_normalize_and_casefold (exec); app->casefolded_exec = trim_exec_line (normalized_exec); g_free (normalized_exec); } /** * shell_app_compare_by_name: * @app: * @other: * * Order two applications by name. * * Returns: -1, 0, or 1; suitable for use as a comparison function for e.g. g_slist_sort() */ int shell_app_compare_by_name (ShellApp *app, ShellApp *other) { return strcmp (app->name_collation_key, other->name_collation_key); } static ShellAppSearchMatch _shell_app_match_search_terms (ShellApp *app, GSList *terms) { GSList *iter; ShellAppSearchMatch match; if (G_UNLIKELY (!app->casefolded_name)) shell_app_init_search_data (app); match = MATCH_NONE; for (iter = terms; iter; iter = iter->next) { ShellAppSearchMatch current_match; const char *term = iter->data; const char *p; current_match = MATCH_NONE; p = strstr (app->casefolded_name, term); if (p == app->casefolded_name) current_match = MATCH_PREFIX; else if (p != NULL) current_match = MATCH_SUBSTRING; p = strstr (app->casefolded_exec, term); if (p != NULL) { if (p == app->casefolded_exec) current_match = (current_match == MATCH_NONE) ? MATCH_PREFIX : MATCH_MULTIPLE_PREFIX; else if (current_match < MATCH_PREFIX) current_match = (current_match == MATCH_NONE) ? MATCH_SUBSTRING : MATCH_MULTIPLE_SUBSTRING; } if (app->casefolded_description && current_match < MATCH_PREFIX) { /* Only do substring matches, as prefix matches are not meaningful * enough for descriptions */ p = strstr (app->casefolded_description, term); if (p != NULL) current_match = (current_match == MATCH_NONE) ? MATCH_SUBSTRING : MATCH_MULTIPLE_SUBSTRING; } if (current_match == MATCH_NONE) return current_match; if (current_match > match) match = current_match; } return match; } void _shell_app_do_match (ShellApp *app, GSList *terms, GSList **multiple_prefix_results, GSList **prefix_results, GSList **multiple_substring_results, GSList **substring_results) { ShellAppSearchMatch match; GAppInfo *appinfo; g_assert (app != NULL); /* Skip window-backed apps */ appinfo = (GAppInfo*)shell_app_get_app_info (app); if (appinfo == NULL) return; /* Skip not-visible apps */ if (!g_app_info_should_show (appinfo)) return; match = _shell_app_match_search_terms (app, terms); switch (match) { case MATCH_NONE: break; case MATCH_MULTIPLE_PREFIX: *multiple_prefix_results = g_slist_prepend (*multiple_prefix_results, app); break; case MATCH_PREFIX: *prefix_results = g_slist_prepend (*prefix_results, app); break; case MATCH_MULTIPLE_SUBSTRING: *multiple_substring_results = g_slist_prepend (*multiple_substring_results, app); break; case MATCH_SUBSTRING: *substring_results = g_slist_prepend (*substring_results, app); break; } } static void shell_app_init (ShellApp *self) { self->state = SHELL_APP_STATE_STOPPED; } static void shell_app_dispose (GObject *object) { ShellApp *app = SHELL_APP (object); if (app->entry) { gmenu_tree_item_unref (app->entry); app->entry = NULL; } if (app->running_state) { while (app->running_state->windows) _shell_app_remove_window (app, app->running_state->windows->data); } G_OBJECT_CLASS(shell_app_parent_class)->dispose (object); } static void shell_app_finalize (GObject *object) { ShellApp *app = SHELL_APP (object); g_free (app->window_id_string); g_free (app->casefolded_name); g_free (app->name_collation_key); g_free (app->casefolded_description); G_OBJECT_CLASS(shell_app_parent_class)->finalize (object); } static void shell_app_class_init(ShellAppClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); gobject_class->get_property = shell_app_get_property; gobject_class->dispose = shell_app_dispose; gobject_class->finalize = shell_app_finalize; shell_app_signals[WINDOWS_CHANGED] = g_signal_new ("windows-changed", SHELL_TYPE_APP, G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * ShellApp:state: * * The high-level state of the application, effectively whether it's * running or not, or transitioning between those states. */ g_object_class_install_property (gobject_class, PROP_STATE, g_param_spec_enum ("state", "State", "Application state", SHELL_TYPE_APP_STATE, SHELL_APP_STATE_STOPPED, G_PARAM_READABLE)); }