st-shell.c

来自「linux下网络收音机的源码」· C语言 代码 · 共 2,166 行 · 第 1/5 页

  gtk_widget_destroy(shell->priv->window);

  while (gtk_events_pending())
    gtk_main_iteration();

  /* save session and restart or quit */

  st_session_save();

  if (shell->priv->restart)
    {
      char *secondary;
      char *normalized;

      execvp(st_main_argv[0], st_main_argv);

      secondary = g_strdup_printf(_("Unable to restart streamtuner: %s"), g_strerror(errno));
      normalized = st_dialog_normalize(secondary);
      g_free(secondary);

      st_error_dialog(_("A fatal error has occurred"), "%s", normalized);
      g_free(normalized);
    }
  
  gtk_main_quit();

  parent_class->finalize(object);
}

static void
st_shell_make_window (STShell *shell)
{
  shell->priv->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  g_object_add_weak_pointer(G_OBJECT(shell->priv->window), (gpointer *) &shell->priv->window);

  shell->priv->accel_group = gtk_accel_group_new();
  gtk_window_add_accel_group(GTK_WINDOW(shell->priv->window), shell->priv->accel_group);

  st_window_set_icon(GTK_WINDOW(shell->priv->window));

  shell->priv->box = gtk_vbox_new(FALSE, 0);
  gtk_container_add(GTK_CONTAINER(shell->priv->window), shell->priv->box);
  gtk_widget_show(shell->priv->box);

  sgtk_window_link_size(GTK_WINDOW(shell->priv->window),
			&st_settings.main_window_width,
			&st_settings.main_window_height);

  g_object_connect(shell->priv->window,
		   "signal::window-state-event", st_shell_window_state_event_h, shell,
		   "signal::delete-event", st_shell_window_delete_event_h, shell,
		   NULL);
}

static gboolean
st_shell_window_state_event_h (GtkWidget *widget,
			       GdkEventWindowState *event,
			       gpointer user_data)
{
  STShell *shell = user_data;

  if (event->changed_mask & GDK_WINDOW_STATE_FULLSCREEN)
    {
      if (event->new_window_state & GDK_WINDOW_STATE_FULLSCREEN)
	st_shell_fullscreen(shell);
      else
	st_shell_unfullscreen(shell);
    }

  return FALSE;			/* propagate event */
}

static gboolean
st_shell_window_delete_event_h (GtkWidget *widget,
				GdkEvent *event,
				gpointer user_data)
{
  STShell *shell = user_data;

  g_object_unref(shell);

  return TRUE;			/* do not propagate event */
}

static void
st_shell_fullscreen (STShell *shell)
{
  GtkWidget *button;

  g_return_if_fail(ST_IS_SHELL(shell));

  shell->priv->fullscreen = TRUE;
  shell->priv->leave_fullscreen_popup = gtk_window_new(GTK_WINDOW_POPUP);
  
  button = gtk_button_new_from_stock(ST_STOCK_LEAVE_FULLSCREEN);
  gtk_container_add(GTK_CONTAINER(shell->priv->leave_fullscreen_popup), button);
  gtk_widget_show(button);

  g_signal_connect(button, "clicked", G_CALLBACK(st_shell_leave_fullscreen_button_clicked_h), shell);

  st_shell_update_visibility(shell);
  st_shell_update_toolbar_style(shell);

  shell->priv->leave_fullscreen_popup_visible = TRUE;
  st_shell_update_leave_fullscreen_popup_position(shell);
  gtk_widget_show(shell->priv->leave_fullscreen_popup);

  shell->priv->screen_size_changed_hid
    = g_signal_connect(gdk_screen_get_default(),
		       "size-changed",
		       G_CALLBACK(st_shell_screen_size_changed_h),
		       shell);
  shell->priv->key_press_event_hid
    = g_signal_connect(shell->priv->window,
		       "key-press-event",
		       G_CALLBACK(st_shell_window_key_press_event_h),
		       shell);

  g_object_connect(shell->priv->leave_fullscreen_popup,
		   "signal::enter-notify-event", st_shell_leave_fullscreen_enter_notify_event_h, shell,
		   "signal::leave-notify-event", st_shell_leave_fullscreen_leave_notify_event_h, shell,
		   NULL);

  shell->priv->leave_fullscreen_timeout_id = g_timeout_add(5000, st_shell_leave_fullscreen_timeout_cb, shell);
}

static void
st_shell_unfullscreen (STShell *shell)
{
  g_return_if_fail(ST_IS_SHELL(shell));

  g_signal_handler_disconnect(gdk_screen_get_default(), shell->priv->screen_size_changed_hid);
  g_signal_handler_disconnect(shell->priv->window, shell->priv->key_press_event_hid);

  if (shell->priv->leave_fullscreen_timeout_id)
    {
      g_source_remove(shell->priv->leave_fullscreen_timeout_id);
      shell->priv->leave_fullscreen_timeout_id = 0;
    }

  gtk_widget_destroy(shell->priv->leave_fullscreen_popup);
  shell->priv->leave_fullscreen_popup = NULL;
  shell->priv->fullscreen = FALSE;

  st_shell_update_visibility(shell);
  st_shell_update_toolbar_style(shell);
}

static void
st_shell_leave_fullscreen_button_clicked_h (GtkButton *button,
					    gpointer user_data)
{
  STShell *shell = user_data;

  gtk_window_unfullscreen(GTK_WINDOW(shell->priv->window));
}

static gboolean
st_shell_leave_fullscreen_timeout_cb (gpointer data)
{
  STShell *shell = data;

  GDK_THREADS_ENTER();

  shell->priv->leave_fullscreen_popup_visible = FALSE;
  st_shell_update_leave_fullscreen_popup_position(shell);
  shell->priv->leave_fullscreen_timeout_id = 0;

  GDK_THREADS_LEAVE();
  
  return FALSE;			/* remove timeout */
}

static gboolean
st_shell_leave_fullscreen_enter_notify_event_h (GtkWidget *widget,
						GdkEventCrossing *event,
						gpointer user_data)
{
  STShell *shell = user_data;

  if (shell->priv->leave_fullscreen_timeout_id)
    {
      g_source_remove(shell->priv->leave_fullscreen_timeout_id);
      shell->priv->leave_fullscreen_timeout_id = 0;
    }

  shell->priv->leave_fullscreen_popup_visible = TRUE;
  st_shell_update_leave_fullscreen_popup_position(shell);

  return FALSE;			/* propagate event */
}

static gboolean
st_shell_leave_fullscreen_leave_notify_event_h (GtkWidget *widget,
						GdkEventCrossing *event,
						gpointer user_data)
{
  STShell *shell = user_data;

  if (shell->priv->leave_fullscreen_timeout_id)
    {
      g_source_remove(shell->priv->leave_fullscreen_timeout_id);
      shell->priv->leave_fullscreen_timeout_id = 0;
    }

  shell->priv->leave_fullscreen_timeout_id = g_timeout_add(5000, st_shell_leave_fullscreen_timeout_cb, shell);

  return FALSE;			/* propagate event */
}

static void
st_shell_update_leave_fullscreen_popup_position (STShell *shell)
{
  GdkScreen *screen;
  int monitor_num;
  GdkRectangle screen_rect;
  int popup_width;
  int popup_height;
  int y;

  g_return_if_fail(ST_IS_SHELL(shell));
  g_return_if_fail(shell->priv->leave_fullscreen_popup != NULL);

  screen = gdk_screen_get_default();
  monitor_num = gdk_screen_get_monitor_at_window(screen, shell->priv->window->window);
  gdk_screen_get_monitor_geometry(screen, monitor_num, &screen_rect);
  gtk_window_get_size(GTK_WINDOW(shell->priv->leave_fullscreen_popup), &popup_width, &popup_height);

  y = screen_rect.y;
  if (! shell->priv->leave_fullscreen_popup_visible)
    y -= popup_height - 2;

  gtk_window_move(GTK_WINDOW(shell->priv->leave_fullscreen_popup), screen_rect.width - popup_width, y);
}

static void
st_shell_screen_size_changed_h (GdkScreen *screen, gpointer user_data)
{
  STShell *shell = user_data;

  st_shell_update_leave_fullscreen_popup_position(shell);
}

static gboolean
st_shell_window_key_press_event_h (GtkWidget *widget,
				   GdkEventKey *event,
				   gpointer user_data)
{
  STShell *shell = user_data;
  static unsigned int escape_key = 0;
  static GdkModifierType escape_mods;

  if (! escape_key)
    gtk_accelerator_parse("Escape", &escape_key, &escape_mods);

  if (event->keyval == escape_key && (escape_mods & event->state) == escape_mods)
    {
      gtk_window_unfullscreen(GTK_WINDOW(shell->priv->window));
      return TRUE;	/* Escape is the shortcut for "Stop", block it */
    }
  else
    return FALSE;	/* propagate event */
}

static void
st_shell_make_menubar (STShell *shell)
{
  /* keep in sync with the stock items in st-stock.c */
  static GtkItemFactoryEntry entries[] = {
    {
      N_("/_Stream"),				NULL,
      NULL,					0,
      "<Branch>",				NULL
    },
    {
      N_("/Stream/_New Preselection..."),	"<Control>N",
      st_shell_new_preselection,		0,
      "<StockItem>",				ST_STOCK_NEW_PRESELECTION
    },
    {
      "/Stream/separator1",			NULL,
      NULL,					0,
      "<Separator>",				NULL
    },
    {
      "/Stream/separator2",			NULL,
      NULL,					0,
      "<Separator>",				NULL
    },
    {
      N_("/Stream/_Quit"),			NULL,
      g_object_unref,				0,
      "<StockItem>",				GTK_STOCK_QUIT
    },
    {
      N_("/_Edit"),				NULL,
      NULL,					0,
      "<Branch>",				NULL
    },
    {
      N_("/Edit/Select _All"),			"<Control>A",
      st_shell_select_all,			0,
      "<StockItem>",				ST_STOCK_SELECT_ALL
    },
    {
      "/Edit/separator1",			NULL,
      NULL,					0,
      "<Separator>",				NULL
    },
    {
      N_("/Edit/_Find..."),			NULL,
      st_shell_find,				0,
      "<StockItem>",				GTK_STOCK_FIND
    },
    {
      N_("/Edit/Find Ne_xt"),			"<Control>G",
      st_shell_find_next,			0,
      "<Item>",					NULL
    },
    {
      N_("/Edit/Find Pre_vious"),		"<Shift><Control>G",
      st_shell_find_previous,			0,
      "<Item>",					NULL
    },
    {
      "/Edit/separator2",			NULL,
      NULL,					0,
      "<Separator>",				NULL
    },
    {
      N_("/Edit/_Search in All Categories..."),	"<Shift><Control>S",
      st_shell_search_in_all_categories,	0,
      "<Item>",					NULL
    },
    {
      "/Edit/separator3",			NULL,
      NULL,					0,
      "<Separator>",				NULL
    },
    {
      N_("/Edit/_Preferences"),			NULL,
      st_shell_present_preferences,		0,
      "<StockItem>",				GTK_STOCK_PREFERENCES
    },
    {
      N_("/_View"),				NULL,
      NULL,					0,
      "<Branch>",				NULL
    },
    {
      N_("/View/_Toolbar"),			NULL,
      NULL,					0,
      "<CheckItem>",				NULL
    },
    {
      N_("/View/Ta_bs"),			NULL,
      NULL,					0,
      "<CheckItem>",				NULL
    },
    {
      N_("/View/Tab Ic_ons"),			NULL,
      NULL,					0,
      "<CheckItem>",				NULL
    },
    {
      N_("/View/St_atusbar"),			NULL,
      NULL,					0,
      "<CheckItem>",				NULL
    },
    {
      "/View/separator1",			NULL,
      NULL,					0,
      "<Separator>",				NULL
    },
    {
      N_("/View/Toolbar Styl_e"),		NULL,
      NULL,					0,
      "<Branch>",				NULL
    },
    {
      N_("/View/Toolbar Style/_Desktop Default"), NULL,
      NULL,					0,
      "<RadioItem>",				NULL
    },
    {
      "/View/Toolbar Style/separator1",		NULL,
      NULL,					0,
      "<Separator>",				NULL
    },
    {
      N_("/View/Toolbar Style/I_cons Only"),	NULL,
      NULL,					0,
      N_("/View/Toolbar Style/Desktop Default"), NULL
    },
    {
      N_("/View/Toolbar Style/_Text Only"),	NULL,
      NULL,					0,
      N_("/View/Toolbar Style/Desktop Default"), NULL
    },
    {
      N_("/View/Toolbar Style/Text Belo_w Icons"), NULL,
      NULL,					0,
      N_("/View/Toolbar Style/Desktop Default"), NULL
    },
    {
      N_("/View/Toolbar Style/Text Be_side Icons"), NULL,
      NULL,					0,
      N_("/View/Toolbar Style/Desktop Default"), NULL
    },
    {
      N_("/View/Toolbar Si_ze"),		NULL,
      NULL,					0,
      "<Branch>",				NULL
    },
    {
      N_("/View/Toolbar Size/_Desktop Default"), NULL,
      NULL,					0,
      "<RadioItem>",				NULL
    },
    {
      "/View/Toolbar Size/separator1",		NULL,
      NULL,					0,
      "<Separator>",				NULL
    },
    {
      N_("/View/Toolbar Size/_Small"),		NULL,
      NULL,					0,
      N_("/View/Toolbar Size/Desktop Default"),	NULL
    },
    {
      N_("/View/Toolbar Size/_Large"),		NULL,
      NULL,					0,
      N_("/View/Toolbar Size/Desktop Default"),	NULL