my_application.cc
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#include "my_application.h"
#include <flutter_linux/flutter_linux.h>
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#endif
#include "flutter/generated_plugin_registrant.h"
struct _MyApplication {
GtkApplication parent_instance;
};
G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
// Implements GApplication::activate.
static void my_application_activate(GApplication* application) {
GtkWindow* window =
GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
// Use a header bar when running in GNOME as this is the common style used
// by applications and is the setup most users will be using (e.g. Ubuntu
// desktop).
// If running on X and not using GNOME then just use a traditional title bar
// in case the window manager does more exotic layout, e.g. tiling.
// If running on Wayland assume the header bar will work (may need changing
// if future cases occur).
gboolean use_header_bar = TRUE;
#ifdef GDK_WINDOWING_X11
GdkScreen *screen = gtk_window_get_screen(window);
if (GDK_IS_X11_SCREEN(screen)) {
const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
use_header_bar = FALSE;
}
}
#endif
if (use_header_bar) {
GtkHeaderBar *header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
gtk_widget_show(GTK_WIDGET(header_bar));
gtk_header_bar_set_title(header_bar, "example");
gtk_header_bar_set_show_close_button(header_bar, TRUE);
gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
}
else {
gtk_window_set_title(window, "example");
}
gtk_window_set_default_size(window, 1280, 720);
gtk_widget_show(GTK_WIDGET(window));
g_autoptr(FlDartProject) project = fl_dart_project_new();
FlView* view = fl_view_new(project);
gtk_widget_show(GTK_WIDGET(view));
gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
fl_register_plugins(FL_PLUGIN_REGISTRY(view));
gtk_widget_grab_focus(GTK_WIDGET(view));
}
static void my_application_class_init(MyApplicationClass* klass) {
G_APPLICATION_CLASS(klass)->activate = my_application_activate;
}
static void my_application_init(MyApplication* self) {}
MyApplication* my_application_new() {
return MY_APPLICATION(g_object_new(my_application_get_type(),
"application-id", APPLICATION_ID,
nullptr));
}