packages/flutter_tools/templates/plugin/linux.tmpl/pluginClassSnakeCase.cc.tmpl

#include "include/{{projectName}}/{{pluginClassSnakeCase}}.h"

#include <flutter_linux/flutter_linux.h>
#include <gtk/gtk.h>
#include <sys/utsname.h>

#include <cstring>

#define {{pluginClassCapitalSnakeCase}}(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST((obj), {{pluginClassSnakeCase}}_get_type(), \
                              {{pluginClass}}))

struct _{{pluginClass}} {
  GObject parent_instance;
};

G_DEFINE_TYPE({{pluginClass}}, {{pluginClassSnakeCase}}, g_object_get_type())

// Called when a method call is received from Flutter.
static void {{pluginClassSnakeCase}}_handle_method_call(
    {{pluginClass}}* self,
    FlMethodCall* method_call) {
  g_autoptr(FlMethodResponse) response = nullptr;

  const gchar* method = fl_method_call_get_name(method_call);

  if (strcmp(method, "getPlatformVersion") == 0) {
    struct utsname uname_data = {};
    uname(&uname_data);
    g_autofree gchar *version = g_strdup_printf("Linux %s", uname_data.version);
    g_autoptr(FlValue) result = fl_value_new_string(version);
    response = FL_METHOD_RESPONSE(fl_method_success_response_new(result));
  } else {
    response = FL_METHOD_RESPONSE(fl_method_not_implemented_response_new());
  }

  fl_method_call_respond(method_call, response, nullptr);
}

static void {{pluginClassSnakeCase}}_dispose(GObject* object) {
  G_OBJECT_CLASS({{pluginClassSnakeCase}}_parent_class)->dispose(object);
}

static void {{pluginClassSnakeCase}}_class_init({{pluginClass}}Class* klass) {
  G_OBJECT_CLASS(klass)->dispose = {{pluginClassSnakeCase}}_dispose;
}

static void {{pluginClassSnakeCase}}_init({{pluginClass}}* self) {}

static void method_call_cb(FlMethodChannel* channel, FlMethodCall* method_call,
                           gpointer user_data) {
  {{pluginClass}}* plugin = {{pluginClassCapitalSnakeCase}}(user_data);
  {{pluginClassSnakeCase}}_handle_method_call(plugin, method_call);
}

void {{pluginClassSnakeCase}}_register_with_registrar(FlPluginRegistrar* registrar) {
  {{pluginClass}}* plugin = {{pluginClassCapitalSnakeCase}}(
      g_object_new({{pluginClassSnakeCase}}_get_type(), nullptr));

  g_autoptr(FlStandardMethodCodec) codec = fl_standard_method_codec_new();
  g_autoptr(FlMethodChannel) channel =
      fl_method_channel_new(fl_plugin_registrar_get_messenger(registrar),
                            "{{projectName}}",
                            FL_METHOD_CODEC(codec));
  fl_method_channel_set_method_call_handler(channel, method_call_cb,
                                            g_object_ref(plugin),
                                            g_object_unref);

  g_object_unref(plugin);
}