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Implement writeImageToClipboard on Linux.

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nyne
2025-03-27 14:52:05 +08:00
parent 37371bee6c
commit d6087e5f59
2 changed files with 40 additions and 1 deletions
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2
lib/utils/clipboard_image.dart
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@@ -5,7 +5,7 @@ import 'package:flutter/services.dart';
Future<void> writeImageToClipboard(Uint8List imageBytes) async { Future<void> writeImageToClipboard(Uint8List imageBytes) async {
const channel = MethodChannel("venera/clipboard"); const channel = MethodChannel("venera/clipboard");
if (Platform.isWindows) { if (Platform.isWindows || Platform.isLinux) {
var image = await instantiateImageCodec(imageBytes); var image = await instantiateImageCodec(imageBytes);
var frame = await image.getNextFrame(); var frame = await image.getNextFrame();
var data = await frame.image.toByteData(format: ImageByteFormat.rawRgba); var data = await frame.image.toByteData(format: ImageByteFormat.rawRgba);

39
linux/my_application.cc
View File

@@ -5,15 +5,45 @@
#include <gdk/gdkx.h> #include <gdk/gdkx.h>
#endif #endif
#include <iostream>
#include "flutter/generated_plugin_registrant.h" #include "flutter/generated_plugin_registrant.h"
struct _MyApplication { struct _MyApplication {
GtkApplication parent_instance; GtkApplication parent_instance;
char** dart_entrypoint_arguments; char** dart_entrypoint_arguments;
FlMethodChannel* clipboard_channel;
}; };
G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION) G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
static void handle_clipboard_call(FlMethodChannel* channel, FlMethodCall* call, gpointer user_data) {
if (strcmp(fl_method_call_get_name(call), "writeImageToClipboard") == 0) {
const auto args = fl_method_call_get_args(call);
const auto width = fl_value_get_int(fl_value_get_map_value(args, 0));
const auto height = fl_value_get_int(fl_value_get_map_value(args, 1));
const auto data = fl_value_get_uint8_list(fl_value_get_map_value(args, 2));
std::cout << width << " " << height << " " << data[0] << " " << data[1] << std::endl;
GBytes* bytes = g_bytes_new(data, width * height * 4);
GdkDisplay* display = gdk_display_get_default();
GtkClipboard* clipboard = gtk_clipboard_get_default(display);
GdkPixbuf* pixbuf = gdk_pixbuf_new_from_bytes(
bytes,
GDK_COLORSPACE_RGB,
true,
8,
width,
height,
width * 4
);
gtk_clipboard_set_image(clipboard, pixbuf);
fl_method_call_respond_success(call, fl_value_new_string("Ok"), nullptr);
}
}
// Implements GApplication::activate. // Implements GApplication::activate.
static void my_application_activate(GApplication* application) { static void my_application_activate(GApplication* application) {
MyApplication* self = MY_APPLICATION(application); MyApplication* self = MY_APPLICATION(application);
@@ -64,6 +94,14 @@ static void my_application_activate(GApplication* application) {
gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view)); gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
fl_register_plugins(FL_PLUGIN_REGISTRY(view)); fl_register_plugins(FL_PLUGIN_REGISTRY(view));
g_autoptr(FlStandardMethodCodec) codec = fl_standard_method_codec_new();
self->clipboard_channel = fl_method_channel_new(
fl_engine_get_binary_messenger(fl_view_get_engine(view)),
"venera/clipboard", FL_METHOD_CODEC(codec));
fl_method_channel_set_method_call_handler(
self->clipboard_channel, handle_clipboard_call, self, nullptr);
gtk_widget_hide(GTK_WIDGET(window)); gtk_widget_hide(GTK_WIDGET(window));
gtk_widget_grab_focus(GTK_WIDGET(view)); gtk_widget_grab_focus(GTK_WIDGET(view));
@@ -110,6 +148,7 @@ static void my_application_shutdown(GApplication* application) {
static void my_application_dispose(GObject* object) { static void my_application_dispose(GObject* object) {
MyApplication* self = MY_APPLICATION(object); MyApplication* self = MY_APPLICATION(object);
g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev); g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
g_clear_object(&self->clipboard_channel);
G_OBJECT_CLASS(my_application_parent_class)->dispose(object); G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
} }