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TextEditor: Use FileSystemAccessClient::try_* APIs

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This commit is contained in:
Mustafa Quraish 2022-01-16 22:43:40 -05:00 committed by Andreas Kling
parent effb19f996
commit f674102447
Notes: sideshowbarker 2024-07-17 20:34:26 +09:00 
Author: https://github.com/mustafaquraish
Commit: https://github.com/SerenityOS/serenity/commit/f674102447a
Pull-request: https://github.com/SerenityOS/serenity/pull/11968
Reviewed-by: https://github.com/TobyAsE
5 changed files with 33 additions and 71 deletions
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72
Userland/Applications/TextEditor/MainWidget.cpp
View File

@ -266,13 +266,9 @@ MainWidget::MainWidget()
});
m_open_action = GUI::CommonActions::make_open_action([this](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;
}
if (editor().document().is_modified()) {
auto save_document_first_result = GUI::MessageBox::ask_about_unsaved_changes(window(), m_path, editor().document().undo_stack().last_unmodified_timestamp());
@ -282,25 +278,22 @@ MainWidget::MainWidget()
return;
}
read_file_and_close(*response.fd, *response.chosen_file);
read_file(*response.value());
});
m_save_as_action = GUI::CommonActions::make_save_as_action([&](auto&) {
auto response = FileSystemAccessClient::Client::the().save_file(window()->window_id(), m_name, m_extension);
if (response.error != 0) {
if (response.error != -1)
GUI::MessageBox::show_error(window(), String::formatted("Saving \"{}\" failed: {}", *response.chosen_file, strerror(response.error)));
auto response = FileSystemAccessClient::Client::the().try_save_file(window(), m_name, m_extension);
if (response.is_error())
return;
}
if (!m_editor->write_to_file_and_close(*response.fd)) {
auto file = response.release_value();
if (!m_editor->write_to_file(*file)) {
GUI::MessageBox::show(window(), "Unable to save file.\n", "Error", GUI::MessageBox::Type::Error);
return;
}
set_path(*response.chosen_file);
dbgln("Wrote document to {}", *response.chosen_file);
set_path(file->filename());
dbgln("Wrote document to {}", file->filename());
});
m_save_action = GUI::CommonActions::make_save_action([&](auto&) {
@ -308,17 +301,11 @@ MainWidget::MainWidget()
m_save_as_action->activate();
return;
}
auto response = FileSystemAccessClient::Client::the().request_file(window()->window_id(), m_path, Core::OpenMode::Truncate | Core::OpenMode::WriteOnly);
if (response.error != 0) {
if (response.error != -1)
GUI::MessageBox::show_error(window(), String::formatted("Unable to save file: {}", strerror(response.error)));
auto response = FileSystemAccessClient::Client::the().try_request_file(window(), m_path, Core::OpenMode::Truncate | Core::OpenMode::WriteOnly);
if (response.is_error())
return;
}
int fd = *response.fd;
if (!m_editor->write_to_file_and_close(fd)) {
if (!m_editor->write_to_file(*response.value())) {
GUI::MessageBox::show(window(), "Unable to save file.\n", "Error", GUI::MessageBox::Type::Error);
}
});
@ -688,32 +675,11 @@ void MainWidget::update_title()
window()->set_title(builder.to_string());
}
bool MainWidget::read_file_and_close(int fd, String const& path)
bool MainWidget::read_file(Core::File& file)
{
VERIFY(path.starts_with("/"sv));
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 false;
}
if (file->is_device()) {
GUI::MessageBox::show(window(), String::formatted("Opening \"{}\" failed: Can't open device files", path), "Error", GUI::MessageBox::Type::Error);
return false;
}
if (file->is_directory()) {
GUI::MessageBox::show(window(), String::formatted("Opening \"{}\" failed: Can't open directories", path), "Error", GUI::MessageBox::Type::Error);
return false;
}
m_editor->set_text(file->read_all());
set_path(path);
m_editor->set_text(file.read_all());
set_path(file.filename());
m_editor->set_focus(true);
return true;
}
@ -758,12 +724,10 @@ void MainWidget::drop_event(GUI::DropEvent& event)
}
// TODO: A drop event should be considered user consent for opening a file
auto file_response = FileSystemAccessClient::Client::the().request_file(window()->window_id(), urls.first().path(), Core::OpenMode::ReadOnly);
if (file_response.error != 0)
auto response = FileSystemAccessClient::Client::the().try_request_file(window(), urls.first().path(), Core::OpenMode::ReadOnly);
if (response.is_error())
return;
read_file_and_close(*file_response.fd, urls.first().path());
read_file(*response.value());
}
}

2
Userland/Applications/TextEditor/MainWidget.h
View File

@ -24,7 +24,7 @@ class MainWidget final : public GUI::Widget {
public:
virtual ~MainWidget() override;
bool read_file_and_close(int fd, String const& path);
bool read_file(Core::File&);
void open_nonexistent_file(String const& path);
bool request_close();

10
Userland/Applications/TextEditor/main.cpp
View File

@ -74,14 +74,14 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
if (file_to_edit) {
FileArgument parsed_argument(file_to_edit);
auto response = FileSystemAccessClient::Client::the().request_file_read_only_approved(window->window_id(), parsed_argument.filename());
auto response = FileSystemAccessClient::Client::the().try_request_file_read_only_approved(window, parsed_argument.filename());
if (response.error == 0) {
if (!text_widget->read_file_and_close(*response.fd, *response.chosen_file))
if (response.is_error() && response.error().code() == ENOENT) {
text_widget->open_nonexistent_file(parsed_argument.filename());
} else {
if (!text_widget->read_file(*response.value()))
return 1;
text_widget->editor().set_cursor_and_focus_line(parsed_argument.line().value_or(1) - 1, parsed_argument.column().value_or(0));
} else {
text_widget->open_nonexistent_file(parsed_argument.filename());
}
}
text_widget->update_title();

18
Userland/Libraries/LibGUI/TextEditor.cpp
View File

@ -1260,19 +1260,17 @@ void TextEditor::timer_event(Core::TimerEvent&)
bool TextEditor::write_to_file(String const& path)
{
int fd = open(path.characters(), O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd < 0) {
perror("open");
auto file = Core::File::construct(path);
if (!file->open(Core::OpenMode::WriteOnly | Core::OpenMode::Truncate)) {
warnln("Error opening {}: {}", path, strerror(file->error()));
return false;
}
return write_to_file_and_close(fd);
return write_to_file(*file);
}
bool TextEditor::write_to_file_and_close(int fd)
bool TextEditor::write_to_file(Core::File& file)
{
ScopeGuard fd_guard = [fd] { close(fd); };
off_t file_size = 0;
if (line_count() == 1 && line(0).is_empty()) {
// Truncate to zero.
@ -1284,7 +1282,7 @@ bool TextEditor::write_to_file_and_close(int fd)
file_size += line_count();
}
if (ftruncate(fd, file_size) < 0) {
if (!file.truncate(file_size)) {
perror("ftruncate");
return false;
}
@ -1296,14 +1294,14 @@ bool TextEditor::write_to_file_and_close(int fd)
auto& line = this->line(i);
if (line.length()) {
auto line_as_utf8 = line.to_utf8();
ssize_t nwritten = write(fd, line_as_utf8.characters(), line_as_utf8.length());
ssize_t nwritten = file.write(line_as_utf8);
if (nwritten < 0) {
perror("write");
return false;
}
}
char ch = '\n';
ssize_t nwritten = write(fd, &ch, 1);
ssize_t nwritten = file.write((u8*)&ch, 1);
if (nwritten != 1) {
perror("write");
return false;

2
Userland/Libraries/LibGUI/TextEditor.h
View File

@ -123,7 +123,7 @@ public:
void insert_at_cursor_or_replace_selection(StringView);
bool write_to_file(String const& path);
bool write_to_file_and_close(int fd);
bool write_to_file(Core::File&);
bool has_selection() const { return m_selection.is_valid(); }
String selected_text() const;
size_t number_of_words() const;