217 lines
7.4 KiB
C++
217 lines
7.4 KiB
C++
#include "my_application.h"
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#include <flutter_linux/flutter_linux.h>
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#ifdef GDK_WINDOWING_X11
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#include <gdk/gdkx.h>
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#include <X11/extensions/XTest.h>
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#endif
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#include "flutter/generated_plugin_registrant.h"
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struct _MyApplication {
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GtkApplication parent_instance;
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char** dart_entrypoint_arguments;
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};
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G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
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static void first_frame_cb(MyApplication* self, FlView* view) {
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gtk_widget_show(gtk_widget_get_toplevel(GTK_WIDGET(view)));
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}
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#ifdef GDK_WINDOWING_X11
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static void handle_inject_input(FlMethodChannel* channel,
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FlMethodCall* method_call,
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gpointer user_data) {
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const gchar* method = fl_method_call_get_name(method_call);
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if (g_strcmp0(method, "injectInput") != 0) {
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fl_method_call_respond_not_implemented(method_call, nullptr);
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return;
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}
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FlValue* args = fl_method_call_get_args(method_call);
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if (fl_value_get_type(args) != FL_VALUE_TYPE_MAP) {
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fl_method_call_respond_error(method_call, "INVALID", "expected map", nullptr, nullptr);
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return;
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}
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Display* display = XOpenDisplay(nullptr);
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if (!display) {
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fl_method_call_respond_error(method_call, "DISPLAY", "cannot open display", nullptr, nullptr);
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return;
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}
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int screen = DefaultScreen(display);
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int screen_w = DisplayWidth(display, screen);
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int screen_h = DisplayHeight(display, screen);
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FlValue* type_val = fl_value_lookup_string(args, "type");
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if (!type_val) {
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XCloseDisplay(display);
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fl_method_call_respond_success(method_call, nullptr, nullptr);
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return;
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}
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const gchar* type = fl_value_get_string(type_val);
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if (g_strcmp0(type, "move") == 0) {
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FlValue* xv = fl_value_lookup_string(args, "x");
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FlValue* yv = fl_value_lookup_string(args, "y");
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if (xv && yv) {
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double nx = fl_value_get_float(xv);
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double ny = fl_value_get_float(yv);
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int px = (int)(nx * screen_w);
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int py = (int)(ny * screen_h);
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XTestFakeMotionEvent(display, screen, px, py, CurrentTime);
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XFlush(display);
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}
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} else if (g_strcmp0(type, "click") == 0) {
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FlValue* xv = fl_value_lookup_string(args, "x");
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FlValue* yv = fl_value_lookup_string(args, "y");
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FlValue* bv = fl_value_lookup_string(args, "button");
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if (xv && yv) {
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double nx = fl_value_get_float(xv);
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double ny = fl_value_get_float(yv);
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int px = (int)(nx * screen_w);
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int py = (int)(ny * screen_h);
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int btn = bv ? (int)fl_value_get_int(bv) : 0;
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unsigned int xbtn = (btn == 1) ? 3 : 1; // X11: 1=left, 3=right
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XTestFakeMotionEvent(display, screen, px, py, CurrentTime);
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XTestFakeButtonEvent(display, xbtn, True, CurrentTime);
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XTestFakeButtonEvent(display, xbtn, False, CurrentTime);
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XFlush(display);
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}
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} else if (g_strcmp0(type, "keydown") == 0 || g_strcmp0(type, "keyup") == 0) {
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FlValue* kv = fl_value_lookup_string(args, "keyCode");
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if (kv) {
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// rough mapping: use low byte of Flutter logical key as X11 keysym
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int logical = (int)fl_value_get_int(kv);
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KeySym sym = (KeySym)(logical & 0xFFFF);
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KeyCode kc = XKeysymToKeycode(display, sym);
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if (kc) {
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Bool press = g_strcmp0(type, "keydown") == 0 ? True : False;
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XTestFakeKeyEvent(display, kc, press, CurrentTime);
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XFlush(display);
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}
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}
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}
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XCloseDisplay(display);
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fl_method_call_respond_success(method_call, nullptr, nullptr);
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}
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#endif // GDK_WINDOWING_X11
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static void my_application_activate(GApplication* application) {
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MyApplication* self = MY_APPLICATION(application);
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GtkWindow* window =
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GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
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gboolean use_header_bar = TRUE;
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#ifdef GDK_WINDOWING_X11
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GdkScreen* screen = gtk_window_get_screen(window);
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if (GDK_IS_X11_SCREEN(screen)) {
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const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
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if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
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use_header_bar = FALSE;
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}
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}
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#endif
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if (use_header_bar) {
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GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
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gtk_widget_show(GTK_WIDGET(header_bar));
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gtk_header_bar_set_title(header_bar, "pulsar");
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gtk_header_bar_set_show_close_button(header_bar, TRUE);
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gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
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} else {
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gtk_window_set_title(window, "pulsar");
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}
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gtk_window_set_default_size(window, 1280, 720);
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g_autoptr(FlDartProject) project = fl_dart_project_new();
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fl_dart_project_set_dart_entrypoint_arguments(
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project, self->dart_entrypoint_arguments);
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FlView* view = fl_view_new(project);
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GdkRGBA background_color;
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gdk_rgba_parse(&background_color, "#000000");
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fl_view_set_background_color(view, &background_color);
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gtk_widget_show(GTK_WIDGET(view));
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gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
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g_signal_connect_swapped(view, "first-frame", G_CALLBACK(first_frame_cb), self);
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gtk_widget_realize(GTK_WIDGET(view));
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fl_register_plugins(FL_PLUGIN_REGISTRY(view));
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#ifdef GDK_WINDOWING_X11
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// register input injection channel (X11 only — Wayland not supported)
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FlEngine* engine = fl_view_get_engine(view);
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FlBinaryMessenger* messenger = fl_engine_get_binary_messenger(engine);
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g_autoptr(FlStandardMethodCodec) codec = fl_standard_method_codec_new();
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FlMethodChannel* input_channel = fl_method_channel_new(
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messenger, "com.pulsar/input", FL_METHOD_CODEC(codec));
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fl_method_channel_set_method_call_handler(
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input_channel, handle_inject_input, nullptr, nullptr);
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#endif
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gtk_widget_grab_focus(GTK_WIDGET(view));
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}
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static gboolean my_application_local_command_line(GApplication* application,
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gchar*** arguments,
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int* exit_status) {
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MyApplication* self = MY_APPLICATION(application);
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self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
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g_autoptr(GError) error = nullptr;
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if (!g_application_register(application, nullptr, &error)) {
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g_warning("Failed to register: %s", error->message);
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*exit_status = 1;
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return TRUE;
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}
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g_application_activate(application);
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*exit_status = 0;
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return TRUE;
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}
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static void my_application_startup(GApplication* application) {
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G_APPLICATION_CLASS(my_application_parent_class)->startup(application);
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}
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static void my_application_shutdown(GApplication* application) {
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G_APPLICATION_CLASS(my_application_parent_class)->shutdown(application);
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}
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static void my_application_dispose(GObject* object) {
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MyApplication* self = MY_APPLICATION(object);
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g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
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G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
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}
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static void my_application_class_init(MyApplicationClass* klass) {
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G_APPLICATION_CLASS(klass)->activate = my_application_activate;
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G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
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G_APPLICATION_CLASS(klass)->startup = my_application_startup;
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G_APPLICATION_CLASS(klass)->shutdown = my_application_shutdown;
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G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
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}
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static void my_application_init(MyApplication* self) {}
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MyApplication* my_application_new() {
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g_set_prgname(APPLICATION_ID);
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return MY_APPLICATION(g_object_new(my_application_get_type(),
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"application-id", APPLICATION_ID,
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"flags", G_APPLICATION_NON_UNIQUE,
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nullptr));
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}
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