Enable opening from sidebar in a new window

Also, move Tab/Enter bindings to the view's key press handler.

fastiv.c

@@ -270,12 +270,25 @@ on_item_activated(G_GNUC_UNUSED FastivBrowser *browser, const char *path,
 	open(path);
 }
 
+static void
+spawn_path(const char *path)
+{
+	char *argv[] = {PROJECT_NAME, (char *) path, NULL};
+	GError *error = NULL;
+	g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
+		NULL, &error);
+	g_clear_error(&error);
+}
+
 static void
 on_open_location(G_GNUC_UNUSED GtkPlacesSidebar *sidebar, GFile *location,
 	G_GNUC_UNUSED GtkPlacesOpenFlags flags, G_GNUC_UNUSED gpointer user_data)
 {
 	gchar *path = g_file_get_path(location);
 	if (path) {
+		if (flags & GTK_PLACES_OPEN_NEW_WINDOW)
+			spawn_path(path);
+		else
 			load_directory(path);
 		g_free(path);
 	}
@@ -302,15 +315,10 @@ on_key_press(G_GNUC_UNUSED GtkWidget *widget, GdkEventKey *event,
 		case GDK_KEY_o:
 			on_open();
 			return TRUE;
-		case GDK_KEY_n: {
-			char *argv[] = {PROJECT_NAME, g.directory, NULL};
-			GError *error = NULL;
-			g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
-				NULL, &error);
-			g_clear_error(&error);
+		case GDK_KEY_n:
+			spawn_path(g.directory);
 			return TRUE;
 		}
-		}
 		break;
 	case 0:
 		switch (event->keyval) {
@@ -338,13 +346,13 @@ on_key_press(G_GNUC_UNUSED GtkWidget *widget, GdkEventKey *event,
 				gtk_widget_show(g.browser_sidebar);
 			return TRUE;
 
-		case GDK_KEY_Tab:
-		case GDK_KEY_Return:
-			gtk_stack_set_visible_child(GTK_STACK(g.stack),
-				gtk_stack_get_visible_child(GTK_STACK(g.stack)) ==
-						g.view_scroller
-					? g.browser_paned
-					: g.view_scroller);
+		case GDK_KEY_F11:
+		case GDK_KEY_f:
+			if (gdk_window_get_state(gtk_widget_get_window(g.window)) &
+				GDK_WINDOW_STATE_FULLSCREEN)
+				gtk_window_unfullscreen(GTK_WINDOW(g.window));
+			else
+				gtk_window_fullscreen(GTK_WINDOW(g.window));
 			return TRUE;
 		}
 	}
@@ -371,6 +379,11 @@ on_key_press_view(G_GNUC_UNUSED GtkWidget *widget, GdkEventKey *event,
 			on_next();
 			return TRUE;
 		}
+
+		case GDK_KEY_Tab:
+		case GDK_KEY_Return:
+			gtk_stack_set_visible_child(GTK_STACK(g.stack), g.browser_paned);
+			return TRUE;
 	}
 	return FALSE;
 }
@@ -501,6 +514,8 @@ main(int argc, char *argv[])
 		GTK_PLACES_SIDEBAR(g.browser_sidebar), FALSE);
 	gtk_places_sidebar_set_show_trash(
 		GTK_PLACES_SIDEBAR(g.browser_sidebar), FALSE);
+	gtk_places_sidebar_set_open_flags(GTK_PLACES_SIDEBAR(g.browser_sidebar),
+		GTK_PLACES_OPEN_NORMAL | GTK_PLACES_OPEN_NEW_WINDOW);
 	g_signal_connect(g.browser_sidebar, "open-location",
 		G_CALLBACK(on_open_location), NULL);
 
@@ -518,7 +533,6 @@ main(int argc, char *argv[])
 	gtk_container_add(GTK_CONTAINER(g.stack), g.browser_paned);
 
 	g.window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
-	gtk_window_set_default_size (GTK_WINDOW (g.window), 800, 600);
 	g_signal_connect(g.window, "destroy",
 		G_CALLBACK(gtk_main_quit), NULL);
 	g_signal_connect(g.window, "key-press-event",
@@ -555,6 +569,23 @@ main(int argc, char *argv[])
 		gtk_widget_grab_focus(g.browser_scroller);
 	}
 
+	// Try to get half of the screen vertically, in 4:3 aspect ratio.
+	//
+	// We need the GdkMonitor before the GtkWindow has a GdkWindow (i.e.,
+	// before it is realized). Take the smallest dimensions, out of desperation.
+	GdkDisplay *display = gtk_widget_get_display(g.window);
+	int unit = G_MAXINT;
+	for (int i = gdk_display_get_n_monitors(display); i--; ) {
+		GdkRectangle geometry = {};
+		gdk_monitor_get_geometry(
+			gdk_display_get_monitor(display, i), &geometry);
+		unit = MIN(unit, MIN(geometry.width, geometry.height) / 6);
+	}
+
+	// Ask for at least 800x600, to cover ridiculously heterogenous setups.
+	unit = MAX(200, unit);
+	gtk_window_set_default_size(GTK_WINDOW(g.window), 4 * unit, 3 * unit);
+
 	gtk_widget_show_all(g.window);
 	gtk_main();
 	return 0;