forked from AuroraMiddleware/gtk
Add an example for handling app menu fallback
The example shows how to use a menu button instead of the default menubar when the shell doesn't show the app menu.
This commit is contained in:
Matthias Clasen
parent
9613cf68bd
commit
ae81246512
@ -53,7 +53,8 @@ noinst_PROGRAMS = \
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hello-world \
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window-default \
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bloatpad \
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plugman \
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plugman \
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sunny \
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grid-packing \
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drawing \
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builder
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213
examples/sunny.c
Normal file
213
examples/sunny.c
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@ -0,0 +1,213 @@
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#include <stdlib.h>
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#include <gtk/gtk.h>
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static void
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new_window (GApplication *app,
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GFile *file)
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{
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GtkWidget *window, *scrolled, *view, *overlay;
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GtkSettings *settings;
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gboolean appmenu;
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window = gtk_application_window_new (GTK_APPLICATION (app));
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gtk_application_window_set_show_menubar (GTK_APPLICATION_WINDOW (window), FALSE);
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gtk_window_set_default_size ((GtkWindow*)window, 640, 480);
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gtk_window_set_title (GTK_WINDOW (window), "Sunny");
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overlay = gtk_overlay_new ();
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gtk_container_add (GTK_CONTAINER (window), overlay);
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settings = gtk_settings_get_default ();
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g_object_get (settings, "gtk-shell-shows-app-menu", &appmenu, NULL);
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if (!appmenu)
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{
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GMenuModel *model;
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GtkWidget *menu;
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GtkWidget *image;
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model = gtk_application_get_app_menu (GTK_APPLICATION (app));
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menu = gtk_menu_button_new ();
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gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (menu), model);
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gtk_widget_set_halign (menu, GTK_ALIGN_END);
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gtk_widget_set_valign (menu, GTK_ALIGN_START);
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image = gtk_image_new ();
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gtk_image_set_from_icon_name (GTK_IMAGE (image),
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"sunny",
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GTK_ICON_SIZE_MENU);
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gtk_button_set_image (GTK_BUTTON (menu), image);
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gtk_overlay_add_overlay (GTK_OVERLAY (overlay), menu);
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}
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scrolled = gtk_scrolled_window_new (NULL, NULL);
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gtk_widget_set_hexpand (scrolled, TRUE);
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gtk_widget_set_vexpand (scrolled, TRUE);
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view = gtk_text_view_new ();
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gtk_container_add (GTK_CONTAINER (scrolled), view);
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gtk_container_add (GTK_CONTAINER (overlay), scrolled);
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if (file != NULL)
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{
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gchar *contents;
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gsize length;
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if (g_file_load_contents (file, NULL, &contents, &length, NULL, NULL))
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{
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GtkTextBuffer *buffer;
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
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gtk_text_buffer_set_text (buffer, contents, length);
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g_free (contents);
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}
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}
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gtk_widget_show_all (GTK_WIDGET (window));
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}
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static void
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activate (GApplication *application)
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{
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new_window (application, NULL);
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}
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static void
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open (GApplication *application,
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GFile **files,
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gint n_files,
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const gchar *hint)
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{
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gint i;
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for (i = 0; i < n_files; i++)
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new_window (application, files[i]);
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}
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typedef GtkApplication MenuButton;
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typedef GtkApplicationClass MenuButtonClass;
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G_DEFINE_TYPE (MenuButton, menu_button, GTK_TYPE_APPLICATION)
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static void
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show_about (GSimpleAction *action,
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GVariant *parameter,
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gpointer user_data)
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{
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gtk_show_about_dialog (NULL,
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"program-name", "Sunny",
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"title", "About Sunny",
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"logo-icon-name", "sunny",
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"comments", "A cheap Bloatpad clone.",
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NULL);
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}
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static void
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quit_app (GSimpleAction *action,
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GVariant *parameter,
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gpointer user_data)
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{
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GList *list, *next;
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GtkWindow *win;
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g_print ("Going down...\n");
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list = gtk_application_get_windows (GTK_APPLICATION (g_application_get_default ()));
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while (list)
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{
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win = list->data;
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next = list->next;
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gtk_widget_destroy (GTK_WIDGET (win));
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list = next;
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}
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}
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static void
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new_activated (GSimpleAction *action,
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GVariant *parameter,
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gpointer user_data)
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{
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GApplication *app = user_data;
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g_application_activate (app);
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}
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static GActionEntry app_entries[] = {
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{ "about", show_about, NULL, NULL, NULL },
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{ "quit", quit_app, NULL, NULL, NULL },
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{ "new", new_activated, NULL, NULL, NULL }
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};
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static void
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startup (GApplication *application)
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{
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GtkBuilder *builder;
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G_APPLICATION_CLASS (menu_button_parent_class)->startup (application);
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g_action_map_add_action_entries (G_ACTION_MAP (application), app_entries, G_N_ELEMENTS (app_entries), application);
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builder = gtk_builder_new ();
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gtk_builder_add_from_string (builder,
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"<interface>"
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" <menu id='app-menu'>"
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" <section>"
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" <item>"
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" <attribute name='label' translatable='yes'>_New Window</attribute>"
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" <attribute name='action'>app.new</attribute>"
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" </item>"
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" <item>"
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" <attribute name='label' translatable='yes'>_About Sunny</attribute>"
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" <attribute name='action'>app.about</attribute>"
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" </item>"
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" <item>"
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" <attribute name='label' translatable='yes'>_Quit</attribute>"
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" <attribute name='action'>app.quit</attribute>"
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" <attribute name='accel'><Primary>q</attribute>"
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" </item>"
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" </section>"
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" </menu>"
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"</interface>", -1, NULL);
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gtk_application_set_app_menu (GTK_APPLICATION (application), G_MENU_MODEL (gtk_builder_get_object (builder, "app-menu")));
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g_object_unref (builder);
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}
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static void
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menu_button_init (MenuButton *app)
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{
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}
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static void
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menu_button_class_init (MenuButtonClass *class)
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{
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GApplicationClass *application_class = G_APPLICATION_CLASS (class);
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application_class->startup = startup;
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application_class->activate = activate;
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application_class->open = open;
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}
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MenuButton *
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menu_button_new (void)
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{
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g_type_init ();
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return g_object_new (menu_button_get_type (),
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"application-id", "org.gtk.Test.Sunny",
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"flags", G_APPLICATION_HANDLES_OPEN,
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NULL);
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}
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int
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main (int argc, char **argv)
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{
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MenuButton *menu_button;
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int status;
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menu_button = menu_button_new ();
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status = g_application_run (G_APPLICATION (menu_button), argc, argv);
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g_object_unref (menu_button);
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return status;
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}
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@ -107,6 +107,14 @@
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* </programlisting>
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* </example>
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*
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* <example><title>Handling fallback yourself</title>
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* <programlisting>
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* <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../examples/sunny.c">
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* <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
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* </xi:include>
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* </programlisting>
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* </example>
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*
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* The XML format understood by #GtkBuilder for #GMenuModel consists
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* of a toplevel <tag class="starttag">menu</tag> element, which contains
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* one or more <tag class="starttag">item</tag> elements. Each
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