PDFViewer: Use FileSystemAccessClient::try_* APIs

Userland/Applications/PDFViewer/PDFViewerWidget.cpp

@@ -41,15 +41,10 @@ void PDFViewerWidget::initialize_menubar(GUI::Window& window)
 {
     auto& file_menu = window.add_menu("&File");
     file_menu.add_action(GUI::CommonActions::make_open_action([&](auto&) {
-        auto response = FileSystemAccessClient::Client::the().open_file(window.window_id());
-
-        if (response.error != 0) {
-            if (response.error != -1)
-                GUI::MessageBox::show_error(&window, String::formatted("Opening \"{}\" failed: {}", *response.chosen_file, strerror(response.error)));
+        auto response = FileSystemAccessClient::Client::the().try_open_file(&window);
+        if (response.is_error())
             return;
-        }
-
-        open_file(*response.fd, *response.chosen_file);
+        open_file(*response.value());
     }));
     file_menu.add_separator();
     file_menu.add_action(GUI::CommonActions::make_quit_action([](auto&) {
@@ -151,19 +146,14 @@ void PDFViewerWidget::create_toolbar()
     toolbar.add_action(*m_rotate_clockwise_action);
 }
 
-void PDFViewerWidget::open_file(int fd, String const& path)
+void PDFViewerWidget::open_file(Core::File& file)
 {
-    auto file = Core::File::construct();
-    if (!file->open(fd, Core::OpenMode::ReadOnly, Core::File::ShouldCloseFileDescriptor::Yes) && file->error() != ENOENT) {
-        GUI::MessageBox::show(window(), String::formatted("Opening \"{}\" failed: {}", path, strerror(errno)), "Error", GUI::MessageBox::Type::Error);
-        return;
-    }
-    window()->set_title(String::formatted("{} - PDF Viewer", path));
+    window()->set_title(String::formatted("{} - PDF Viewer", file.filename()));
 
-    m_buffer = file->read_all();
+    m_buffer = file.read_all();
     auto document = PDF::Document::create(m_buffer);
     if (!document) {
-        GUI::MessageBox::show_error(nullptr, String::formatted("Couldn't load PDF: {}", path));
+        GUI::MessageBox::show_error(nullptr, String::formatted("Couldn't load PDF: {}", file.filename()));
         return;
     }
 

Userland/Applications/PDFViewer/PDFViewerWidget.h

@@ -23,7 +23,7 @@ public:
 
     void initialize_menubar(GUI::Window&);
     void create_toolbar();
-    void open_file(int fd, const String& path);
+    void open_file(Core::File&);
 
 private:
     PDFViewerWidget();

Userland/Applications/PDFViewer/main.cpp

@@ -38,14 +38,10 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     window->set_icon(app_icon.bitmap_for_size(16));
 
     if (arguments.argc >= 2) {
-        auto response = FileSystemAccessClient::Client::the().request_file_read_only_approved(window->window_id(), arguments.argv[1]);
-
-        if (response.error != 0) {
-            if (response.error != -1)
-                GUI::MessageBox::show_error(window, String::formatted("Opening \"{}\" failed: {}", *response.chosen_file, strerror(response.error)));
+        auto response = FileSystemAccessClient::Client::the().try_request_file_read_only_approved(window, arguments.argv[1]);
+        if (response.is_error())
             return 1;
-        }
-        pdf_viewer_widget->open_file(*response.fd, *response.chosen_file);
+        pdf_viewer_widget->open_file(*response.value());
     }
 
     return app->exec();