mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 04:27:43 +00:00
LibLine: Do a whole bunch of internal error propagation
This commit is contained in:
Tim Schumacher
Sam Atkins
parent
f9f1e1dd49
commit
40cb41a16c
8 changed files with 212 additions and 187 deletions
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@ -566,11 +566,11 @@ void Editor::initialize()
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if (m_configuration.m_signal_mode == Configuration::WithSignalHandlers) {
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m_signal_handlers.append(Core::EventLoop::register_signal(SIGINT, [this](int) {
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interrupted();
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interrupted().release_value_but_fixme_should_propagate_errors();
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}));
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m_signal_handlers.append(Core::EventLoop::register_signal(SIGWINCH, [this](int) {
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resized();
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resized().release_value_but_fixme_should_propagate_errors();
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}));
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}
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@ -587,26 +587,26 @@ void Editor::refetch_default_termios()
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m_termios = termios;
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}
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void Editor::interrupted()
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ErrorOr<void> Editor::interrupted()
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{
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if (m_is_searching)
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return m_search_editor->interrupted();
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if (!m_is_editing)
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return;
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return {};
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m_was_interrupted = true;
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handle_interrupt_event();
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if (!m_finish || !m_previous_interrupt_was_handled_as_interrupt)
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return;
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return {};
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m_finish = false;
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{
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auto stderr_stream = Core::Stream::File::standard_error().release_value_but_fixme_should_propagate_errors();
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reposition_cursor(*stderr_stream, true);
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if (m_suggestion_display->cleanup())
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reposition_cursor(*stderr_stream, true);
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stderr_stream->write_entire_buffer("\n"sv.bytes()).release_value_but_fixme_should_propagate_errors();
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auto stderr_stream = TRY(Core::Stream::File::standard_error());
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TRY(reposition_cursor(*stderr_stream, true));
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if (TRY(m_suggestion_display->cleanup()))
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TRY(reposition_cursor(*stderr_stream, true));
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TRY(stderr_stream->write_entire_buffer("\n"sv.bytes()));
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}
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m_buffer.clear();
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m_chars_touched_in_the_middle = buffer().size();
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@ -615,9 +615,10 @@ void Editor::interrupted()
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m_notifier->set_enabled(false);
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m_notifier = nullptr;
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Core::EventLoop::current().quit(Retry);
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return {};
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}
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void Editor::resized()
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ErrorOr<void> Editor::resized()
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{
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m_was_resized = true;
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m_previous_num_columns = m_num_columns;
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@ -626,42 +627,47 @@ void Editor::resized()
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if (!m_has_origin_reset_scheduled) {
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// Reset the origin, but make sure it doesn't blow up if we can't read it
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if (set_origin(false)) {
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handle_resize_event(false);
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TRY(handle_resize_event(false));
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} else {
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deferred_invoke([this] { handle_resize_event(true); });
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deferred_invoke([this] { handle_resize_event(true).release_value_but_fixme_should_propagate_errors(); });
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m_has_origin_reset_scheduled = true;
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}
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}
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return {};
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}
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void Editor::handle_resize_event(bool reset_origin)
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ErrorOr<void> Editor::handle_resize_event(bool reset_origin)
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{
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m_has_origin_reset_scheduled = false;
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if (reset_origin && !set_origin(false)) {
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m_has_origin_reset_scheduled = true;
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return deferred_invoke([this] { handle_resize_event(true); });
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deferred_invoke([this] { handle_resize_event(true).release_value_but_fixme_should_propagate_errors(); });
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return {};
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}
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set_origin(m_origin_row, 1);
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auto stderr_stream = Core::Stream::File::standard_error().release_value_but_fixme_should_propagate_errors();
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auto stderr_stream = TRY(Core::Stream::File::standard_error());
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reposition_cursor(*stderr_stream, true);
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m_suggestion_display->redisplay(m_suggestion_manager, m_num_lines, m_num_columns);
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TRY(reposition_cursor(*stderr_stream, true));
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TRY(m_suggestion_display->redisplay(m_suggestion_manager, m_num_lines, m_num_columns));
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m_origin_row = m_suggestion_display->origin_row();
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reposition_cursor(*stderr_stream);
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TRY(reposition_cursor(*stderr_stream));
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if (m_is_searching)
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m_search_editor->resized();
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TRY(m_search_editor->resized());
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return {};
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}
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void Editor::really_quit_event_loop()
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ErrorOr<void> Editor::really_quit_event_loop()
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{
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m_finish = false;
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{
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auto stderr_stream = Core::Stream::File::standard_error().release_value_but_fixme_should_propagate_errors();
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reposition_cursor(*stderr_stream, true);
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stderr_stream->write_entire_buffer("\n"sv.bytes()).release_value_but_fixme_should_propagate_errors();
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auto stderr_stream = TRY(Core::Stream::File::standard_error());
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TRY(reposition_cursor(*stderr_stream, true));
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TRY(stderr_stream->write_entire_buffer("\n"sv.bytes()));
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}
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auto string = line();
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m_buffer.clear();
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@ -675,6 +681,7 @@ void Editor::really_quit_event_loop()
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m_notifier->set_enabled(false);
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m_notifier = nullptr;
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Core::EventLoop::current().quit(Exit);
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return {};
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}
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auto Editor::get_line(DeprecatedString const& prompt) -> Result<DeprecatedString, Editor::Error>
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@ -729,22 +736,22 @@ auto Editor::get_line(DeprecatedString const& prompt) -> Result<DeprecatedString
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for (size_t i = 0; i < prompt_lines; ++i)
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stderr_stream->write_entire_buffer("\n"sv.bytes()).release_value_but_fixme_should_propagate_errors();
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VT::move_relative(-static_cast<int>(prompt_lines), 0, *stderr_stream);
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VT::move_relative(-static_cast<int>(prompt_lines), 0, *stderr_stream).release_value_but_fixme_should_propagate_errors();
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}
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set_origin();
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m_history_cursor = m_history.size();
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refresh_display();
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refresh_display().release_value_but_fixme_should_propagate_errors();
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Core::EventLoop loop;
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m_notifier = Core::Notifier::construct(STDIN_FILENO, Core::Notifier::Read);
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m_notifier->on_ready_to_read = [&] { try_update_once(); };
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m_notifier->on_ready_to_read = [&] { try_update_once().release_value_but_fixme_should_propagate_errors(); };
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if (!m_incomplete_data.is_empty())
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deferred_invoke([&] { try_update_once(); });
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deferred_invoke([&] { try_update_once().release_value_but_fixme_should_propagate_errors(); });
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if (loop.exec() == Retry)
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return get_line(prompt);
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@ -770,21 +777,23 @@ void Editor::save_to(JsonObject& object)
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object.set("used_display_area", move(display_area));
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}
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void Editor::try_update_once()
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ErrorOr<void> Editor::try_update_once()
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{
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if (m_was_interrupted) {
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handle_interrupt_event();
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}
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handle_read_event();
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TRY(handle_read_event());
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if (m_always_refresh)
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m_refresh_needed = true;
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refresh_display();
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TRY(refresh_display());
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if (m_finish)
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really_quit_event_loop();
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TRY(really_quit_event_loop());
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return {};
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}
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void Editor::handle_interrupt_event()
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@ -811,11 +820,11 @@ void Editor::handle_interrupt_event()
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finish();
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}
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void Editor::handle_read_event()
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ErrorOr<void> Editor::handle_read_event()
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{
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if (m_prohibit_input_processing) {
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m_have_unprocessed_read_event = true;
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return;
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return {};
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}
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auto prohibit_scope = prohibit_input();
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@ -830,14 +839,14 @@ void Editor::handle_read_event()
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if (errno == EINTR) {
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if (!m_was_interrupted) {
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if (m_was_resized)
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return;
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return {};
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finish();
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return;
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return {};
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}
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handle_interrupt_event();
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return;
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return {};
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}
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ScopedValueRollback errno_restorer(errno);
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@ -845,7 +854,7 @@ void Editor::handle_read_event()
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m_input_error = Error::ReadFailure;
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finish();
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return;
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return {};
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}
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m_incomplete_data.append(keybuf, nread);
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@ -854,7 +863,7 @@ void Editor::handle_read_event()
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if (available_bytes == 0) {
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m_input_error = Error::Empty;
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finish();
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return;
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return {};
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}
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auto reverse_tab = false;
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@ -900,7 +909,7 @@ void Editor::handle_read_event()
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default: {
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m_callback_machine.key_pressed(*this, { code_point, Key::Alt });
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m_state = InputState::Free;
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cleanup_suggestions();
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TRY(cleanup_suggestions());
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continue;
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}
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}
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@ -958,7 +967,7 @@ void Editor::handle_read_event()
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reverse_tab = true;
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break;
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}
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cleanup_suggestions();
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TRY(cleanup_suggestions());
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switch (csi_final) {
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case 'A': // ^[[A: arrow up
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@ -1064,7 +1073,7 @@ void Editor::handle_read_event()
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}
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// There are no sequences past this point, so short of 'tab', we will want to cleanup the suggestions.
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ArmedScopeGuard suggestion_cleanup { [this] { cleanup_suggestions(); } };
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ArmedScopeGuard suggestion_cleanup { [this] { cleanup_suggestions().release_value_but_fixme_should_propagate_errors(); } };
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// Normally ^D. `stty eof \^n` can change it to ^N (or something else), but Serenity doesn't have `stty` yet.
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// Process this here since the keybinds might override its behavior.
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@ -1156,8 +1165,8 @@ void Editor::handle_read_event()
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for (auto& view : completion_result.insert)
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insert(view);
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auto stderr_stream = Core::Stream::File::standard_error().release_value_but_fixme_should_propagate_errors();
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reposition_cursor(*stderr_stream);
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auto stderr_stream = TRY(Core::Stream::File::standard_error());
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TRY(reposition_cursor(*stderr_stream));
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if (completion_result.style_to_apply.has_value()) {
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// Apply the style of the last suggestion.
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@ -1178,12 +1187,12 @@ void Editor::handle_read_event()
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}
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if (m_times_tab_pressed > 1 && m_suggestion_manager.count() > 0) {
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if (m_suggestion_display->cleanup())
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reposition_cursor(*stderr_stream);
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if (TRY(m_suggestion_display->cleanup()))
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TRY(reposition_cursor(*stderr_stream));
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m_suggestion_display->set_initial_prompt_lines(m_prompt_lines_at_suggestion_initiation);
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m_suggestion_display->display(m_suggestion_manager);
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TRY(m_suggestion_display->display(m_suggestion_manager));
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m_origin_row = m_suggestion_display->origin_row();
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}
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@ -1199,8 +1208,8 @@ void Editor::handle_read_event()
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// We have none, or just one suggestion,
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// we should just commit that and continue
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// after it, as if it were auto-completed.
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reposition_cursor(*stderr_stream, true);
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cleanup_suggestions();
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TRY(reposition_cursor(*stderr_stream, true));
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TRY(cleanup_suggestions());
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m_remembered_suggestion_static_data.clear_with_capacity();
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}
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continue;
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@ -1209,7 +1218,7 @@ void Editor::handle_read_event()
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// If we got here, manually cleanup the suggestions and then insert the new code point.
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m_remembered_suggestion_static_data.clear_with_capacity();
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suggestion_cleanup.disarm();
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cleanup_suggestions();
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TRY(cleanup_suggestions());
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insert(code_point);
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}
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@ -1221,10 +1230,12 @@ void Editor::handle_read_event()
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}
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if (!m_incomplete_data.is_empty() && !m_finish)
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deferred_invoke([&] { try_update_once(); });
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deferred_invoke([&] { try_update_once().release_value_but_fixme_should_propagate_errors(); });
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return {};
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}
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void Editor::cleanup_suggestions()
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ErrorOr<void> Editor::cleanup_suggestions()
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{
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if (m_times_tab_pressed != 0) {
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// Apply the style of the last suggestion.
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@ -1232,15 +1243,16 @@ void Editor::cleanup_suggestions()
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stylize({ m_suggestion_manager.current_suggestion().start_index, m_cursor, Span::Mode::CodepointOriented }, m_suggestion_manager.current_suggestion().style);
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// We probably have some suggestions drawn,
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// let's clean them up.
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if (m_suggestion_display->cleanup()) {
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auto stderr_stream = Core::Stream::File::standard_error().release_value_but_fixme_should_propagate_errors();
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reposition_cursor(*stderr_stream);
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if (TRY(m_suggestion_display->cleanup())) {
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auto stderr_stream = TRY(Core::Stream::File::standard_error());
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TRY(reposition_cursor(*stderr_stream));
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m_refresh_needed = true;
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}
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m_suggestion_manager.reset();
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m_suggestion_display->finish();
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}
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m_times_tab_pressed = 0; // Safe to say if we get here, the user didn't press TAB
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return {};
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}
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bool Editor::search(StringView phrase, bool allow_empty, bool from_beginning)
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@ -1298,22 +1310,24 @@ void Editor::recalculate_origin()
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// but that will be calculated and applied at the next
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// refresh cycle.
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}
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void Editor::cleanup()
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ErrorOr<void> Editor::cleanup()
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{
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auto current_buffer_metrics = actual_rendered_string_metrics(buffer_view(), m_current_masks);
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auto new_lines = current_prompt_metrics().lines_with_addition(current_buffer_metrics, m_num_columns);
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if (new_lines < m_shown_lines)
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m_extra_forward_lines = max(m_shown_lines - new_lines, m_extra_forward_lines);
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auto stderr_stream = Core::Stream::File::standard_error().release_value_but_fixme_should_propagate_errors();
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reposition_cursor(*stderr_stream, true);
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auto stderr_stream = TRY(Core::Stream::File::standard_error());
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TRY(reposition_cursor(*stderr_stream, true));
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auto current_line = num_lines() - 1;
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VT::clear_lines(current_line, m_extra_forward_lines, *stderr_stream);
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TRY(VT::clear_lines(current_line, m_extra_forward_lines, *stderr_stream));
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m_extra_forward_lines = 0;
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reposition_cursor(*stderr_stream);
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TRY(reposition_cursor(*stderr_stream));
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return {};
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};
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void Editor::refresh_display()
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ErrorOr<void> Editor::refresh_display()
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{
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Core::Stream::AllocatingMemoryStream output_stream;
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ScopeGuard flush_stream {
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@ -1339,7 +1353,7 @@ void Editor::refresh_display()
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m_refresh_needed = true;
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swap(m_previous_num_columns, m_num_columns);
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recalculate_origin();
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cleanup();
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TRY(cleanup());
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swap(m_previous_num_columns, m_num_columns);
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has_cleaned_up = true;
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}
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@ -1353,22 +1367,22 @@ void Editor::refresh_display()
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if (m_origin_row + current_num_lines > m_num_lines) {
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if (current_num_lines > m_num_lines) {
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for (size_t i = 0; i < m_num_lines; ++i)
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output_stream.write_entire_buffer("\n"sv.bytes()).release_value_but_fixme_should_propagate_errors();
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TRY(output_stream.write_entire_buffer("\n"sv.bytes()));
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m_origin_row = 0;
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} else {
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auto old_origin_row = m_origin_row;
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m_origin_row = m_num_lines - current_num_lines + 1;
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for (size_t i = 0; i < old_origin_row - m_origin_row; ++i)
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output_stream.write_entire_buffer("\n"sv.bytes()).release_value_but_fixme_should_propagate_errors();
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TRY(output_stream.write_entire_buffer("\n"sv.bytes()));
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}
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}
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// Do not call hook on pure cursor movement.
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if (m_cached_prompt_valid && !m_refresh_needed && m_pending_chars.size() == 0) {
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// Probably just moving around.
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reposition_cursor(output_stream);
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TRY(reposition_cursor(output_stream));
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m_cached_buffer_metrics = actual_rendered_string_metrics(buffer_view(), m_current_masks);
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m_drawn_end_of_line_offset = m_buffer.size();
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return;
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return {};
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}
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if (on_display_refresh)
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@ -1378,17 +1392,17 @@ void Editor::refresh_display()
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if (!m_refresh_needed && m_cursor == m_buffer.size()) {
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// Just write the characters out and continue,
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// no need to refresh the entire line.
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output_stream.write_entire_buffer(m_pending_chars).release_value_but_fixme_should_propagate_errors();
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TRY(output_stream.write_entire_buffer(m_pending_chars));
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m_pending_chars.clear();
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m_drawn_cursor = m_cursor;
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m_drawn_end_of_line_offset = m_buffer.size();
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m_cached_buffer_metrics = actual_rendered_string_metrics(buffer_view(), m_current_masks);
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m_drawn_spans = m_current_spans;
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return;
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return {};
|
||||
}
|
||||
}
|
||||
|
||||
auto apply_styles = [&, empty_styles = HashMap<u32, Style> {}](size_t i) {
|
||||
auto apply_styles = [&, empty_styles = HashMap<u32, Style> {}](size_t i) -> ErrorOr<void> {
|
||||
auto ends = m_current_spans.m_spans_ending.get(i).value_or(empty_styles);
|
||||
auto starts = m_current_spans.m_spans_starting.get(i).value_or(empty_styles);
|
||||
|
||||
|
|
@ -1405,11 +1419,11 @@ void Editor::refresh_display()
|
|||
style.unify_with(applicable_style.value);
|
||||
|
||||
// Disable any style that should be turned off.
|
||||
VT::apply_style(style, output_stream, false);
|
||||
TRY(VT::apply_style(style, output_stream, false));
|
||||
|
||||
// Reapply styles for overlapping spans that include this one.
|
||||
style = find_applicable_style(i);
|
||||
VT::apply_style(style, output_stream, true);
|
||||
TRY(VT::apply_style(style, output_stream, true));
|
||||
}
|
||||
if (starts.size() || anchored_starts.size()) {
|
||||
Style style;
|
||||
|
|
@ -1421,8 +1435,10 @@ void Editor::refresh_display()
|
|||
style.unify_with(applicable_style.value);
|
||||
|
||||
// Set new styles.
|
||||
VT::apply_style(style, output_stream, true);
|
||||
TRY(VT::apply_style(style, output_stream, true));
|
||||
}
|
||||
|
||||
return {};
|
||||
};
|
||||
|
||||
auto print_character_at = [&](size_t i) {
|
||||
|
|
@ -1445,7 +1461,7 @@ void Editor::refresh_display()
|
|||
} else {
|
||||
c = m_buffer[i];
|
||||
}
|
||||
auto print_single_character = [&](auto c) {
|
||||
auto print_single_character = [&](auto c) -> ErrorOr<void> {
|
||||
StringBuilder builder;
|
||||
bool should_print_masked = is_ascii_control(c) && c != '\n';
|
||||
bool should_print_caret = c < 64 && should_print_masked;
|
||||
|
|
@ -1457,30 +1473,32 @@ void Editor::refresh_display()
|
|||
builder.append(Utf32View { &c, 1 });
|
||||
|
||||
if (should_print_masked)
|
||||
output_stream.write_entire_buffer("\033[7m"sv.bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(output_stream.write_entire_buffer("\033[7m"sv.bytes()));
|
||||
|
||||
output_stream.write_entire_buffer(builder.string_view().bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(output_stream.write_entire_buffer(builder.string_view().bytes()));
|
||||
|
||||
if (should_print_masked)
|
||||
output_stream.write_entire_buffer("\033[27m"sv.bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(output_stream.write_entire_buffer("\033[27m"sv.bytes()));
|
||||
|
||||
return {};
|
||||
};
|
||||
c.visit(
|
||||
[&](u32 c) { print_single_character(c); },
|
||||
[&](auto& view) { for (auto c : view) print_single_character(c); });
|
||||
[&](u32 c) { print_single_character(c).release_value_but_fixme_should_propagate_errors(); },
|
||||
[&](auto& view) { for (auto c : view) print_single_character(c).release_value_but_fixme_should_propagate_errors(); });
|
||||
};
|
||||
|
||||
// If there have been no changes to previous sections of the line (style or text)
|
||||
// just append the new text with the appropriate styles.
|
||||
if (!m_always_refresh && m_cached_prompt_valid && m_chars_touched_in_the_middle == 0 && m_drawn_spans.contains_up_to_offset(m_current_spans, m_drawn_cursor)) {
|
||||
auto initial_style = find_applicable_style(m_drawn_end_of_line_offset);
|
||||
VT::apply_style(initial_style, output_stream);
|
||||
TRY(VT::apply_style(initial_style, output_stream));
|
||||
|
||||
for (size_t i = m_drawn_end_of_line_offset; i < m_buffer.size(); ++i) {
|
||||
apply_styles(i);
|
||||
TRY(apply_styles(i));
|
||||
print_character_at(i);
|
||||
}
|
||||
|
||||
VT::apply_style(Style::reset_style(), output_stream);
|
||||
TRY(VT::apply_style(Style::reset_style(), output_stream));
|
||||
m_pending_chars.clear();
|
||||
m_refresh_needed = false;
|
||||
m_cached_buffer_metrics = actual_rendered_string_metrics(buffer_view(), m_current_masks);
|
||||
|
|
@ -1489,7 +1507,7 @@ void Editor::refresh_display()
|
|||
m_drawn_end_of_line_offset = m_buffer.size();
|
||||
|
||||
// No need to reposition the cursor, the cursor is already where it needs to be.
|
||||
return;
|
||||
return {};
|
||||
}
|
||||
|
||||
if constexpr (LINE_EDITOR_DEBUG) {
|
||||
|
|
@ -1514,20 +1532,20 @@ void Editor::refresh_display()
|
|||
|
||||
// Ouch, reflow entire line.
|
||||
if (!has_cleaned_up) {
|
||||
cleanup();
|
||||
TRY(cleanup());
|
||||
}
|
||||
VT::move_absolute(m_origin_row, m_origin_column, output_stream);
|
||||
TRY(VT::move_absolute(m_origin_row, m_origin_column, output_stream));
|
||||
|
||||
output_stream.write_entire_buffer(m_new_prompt.bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(output_stream.write_entire_buffer(m_new_prompt.bytes()));
|
||||
|
||||
VT::clear_to_end_of_line(output_stream);
|
||||
TRY(VT::clear_to_end_of_line(output_stream));
|
||||
StringBuilder builder;
|
||||
for (size_t i = 0; i < m_buffer.size(); ++i) {
|
||||
apply_styles(i);
|
||||
TRY(apply_styles(i));
|
||||
print_character_at(i);
|
||||
}
|
||||
|
||||
VT::apply_style(Style::reset_style(), output_stream); // don't bleed to EOL
|
||||
TRY(VT::apply_style(Style::reset_style(), output_stream)); // don't bleed to EOL
|
||||
|
||||
m_pending_chars.clear();
|
||||
m_refresh_needed = false;
|
||||
|
|
@ -1537,7 +1555,8 @@ void Editor::refresh_display()
|
|||
m_drawn_end_of_line_offset = m_buffer.size();
|
||||
m_cached_prompt_valid = true;
|
||||
|
||||
reposition_cursor(output_stream);
|
||||
TRY(reposition_cursor(output_stream));
|
||||
return {};
|
||||
}
|
||||
|
||||
void Editor::strip_styles(bool strip_anchored)
|
||||
|
|
@ -1555,7 +1574,7 @@ void Editor::strip_styles(bool strip_anchored)
|
|||
m_refresh_needed = true;
|
||||
}
|
||||
|
||||
void Editor::reposition_cursor(Core::Stream::Stream& stream, bool to_end)
|
||||
ErrorOr<void> Editor::reposition_cursor(Core::Stream::Stream& stream, bool to_end)
|
||||
{
|
||||
auto cursor = m_cursor;
|
||||
auto saved_cursor = m_cursor;
|
||||
|
|
@ -1571,17 +1590,18 @@ void Editor::reposition_cursor(Core::Stream::Stream& stream, bool to_end)
|
|||
ensure_free_lines_from_origin(line);
|
||||
|
||||
VERIFY(column + m_origin_column <= m_num_columns);
|
||||
VT::move_absolute(line + m_origin_row, column + m_origin_column, stream);
|
||||
TRY(VT::move_absolute(line + m_origin_row, column + m_origin_column, stream));
|
||||
|
||||
m_cursor = saved_cursor;
|
||||
return {};
|
||||
}
|
||||
|
||||
void VT::move_absolute(u32 row, u32 col, Core::Stream::Stream& stream)
|
||||
ErrorOr<void> VT::move_absolute(u32 row, u32 col, Core::Stream::Stream& stream)
|
||||
{
|
||||
stream.write_entire_buffer(DeprecatedString::formatted("\033[{};{}H", row, col).bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
return stream.write_entire_buffer(DeprecatedString::formatted("\033[{};{}H", row, col).bytes());
|
||||
}
|
||||
|
||||
void VT::move_relative(int row, int col, Core::Stream::Stream& stream)
|
||||
ErrorOr<void> VT::move_relative(int row, int col, Core::Stream::Stream& stream)
|
||||
{
|
||||
char x_op = 'A', y_op = 'D';
|
||||
|
||||
|
|
@ -1595,9 +1615,11 @@ void VT::move_relative(int row, int col, Core::Stream::Stream& stream)
|
|||
col = -col;
|
||||
|
||||
if (row > 0)
|
||||
stream.write_entire_buffer(DeprecatedString::formatted("\033[{}{}", row, x_op).bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(stream.write_entire_buffer(DeprecatedString::formatted("\033[{}{}", row, x_op).bytes()));
|
||||
if (col > 0)
|
||||
stream.write_entire_buffer(DeprecatedString::formatted("\033[{}{}", col, y_op).bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(stream.write_entire_buffer(DeprecatedString::formatted("\033[{}{}", col, y_op).bytes()));
|
||||
|
||||
return {};
|
||||
}
|
||||
|
||||
Style Editor::find_applicable_style(size_t offset) const
|
||||
|
|
@ -1731,53 +1753,56 @@ DeprecatedString Style::to_deprecated_string() const
|
|||
return builder.build();
|
||||
}
|
||||
|
||||
void VT::apply_style(Style const& style, Core::Stream::Stream& stream, bool is_starting)
|
||||
ErrorOr<void> VT::apply_style(Style const& style, Core::Stream::Stream& stream, bool is_starting)
|
||||
{
|
||||
if (is_starting) {
|
||||
stream.write_entire_buffer(DeprecatedString::formatted("\033[{};{};{}m{}{}{}",
|
||||
style.bold() ? 1 : 22,
|
||||
style.underline() ? 4 : 24,
|
||||
style.italic() ? 3 : 23,
|
||||
style.background().to_vt_escape(),
|
||||
style.foreground().to_vt_escape(),
|
||||
style.hyperlink().to_vt_escape(true))
|
||||
.bytes())
|
||||
.release_value_but_fixme_should_propagate_errors();
|
||||
TRY(stream.write_entire_buffer(DeprecatedString::formatted("\033[{};{};{}m{}{}{}",
|
||||
style.bold() ? 1 : 22,
|
||||
style.underline() ? 4 : 24,
|
||||
style.italic() ? 3 : 23,
|
||||
style.background().to_vt_escape(),
|
||||
style.foreground().to_vt_escape(),
|
||||
style.hyperlink().to_vt_escape(true))
|
||||
.bytes()));
|
||||
} else {
|
||||
stream.write_entire_buffer(style.hyperlink().to_vt_escape(false).bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(stream.write_entire_buffer(style.hyperlink().to_vt_escape(false).bytes()));
|
||||
}
|
||||
|
||||
return {};
|
||||
}
|
||||
|
||||
void VT::clear_lines(size_t count_above, size_t count_below, Core::Stream::Stream& stream)
|
||||
ErrorOr<void> VT::clear_lines(size_t count_above, size_t count_below, Core::Stream::Stream& stream)
|
||||
{
|
||||
if (count_below + count_above == 0) {
|
||||
stream.write_entire_buffer("\033[2K"sv.bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(stream.write_entire_buffer("\033[2K"sv.bytes()));
|
||||
} else {
|
||||
// Go down count_below lines.
|
||||
if (count_below > 0)
|
||||
stream.write_entire_buffer(DeprecatedString::formatted("\033[{}B", count_below).bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(stream.write_entire_buffer(DeprecatedString::formatted("\033[{}B", count_below).bytes()));
|
||||
// Then clear lines going upwards.
|
||||
for (size_t i = count_below + count_above; i > 0; --i) {
|
||||
stream.write_entire_buffer("\033[2K"sv.bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(stream.write_entire_buffer("\033[2K"sv.bytes()));
|
||||
if (i != 1)
|
||||
stream.write_entire_buffer("\033[A"sv.bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
TRY(stream.write_entire_buffer("\033[A"sv.bytes()));
|
||||
}
|
||||
}
|
||||
|
||||
return {};
|
||||
}
|
||||
|
||||
void VT::save_cursor(Core::Stream::Stream& stream)
|
||||
ErrorOr<void> VT::save_cursor(Core::Stream::Stream& stream)
|
||||
{
|
||||
stream.write_entire_buffer("\033[s"sv.bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
return stream.write_entire_buffer("\033[s"sv.bytes());
|
||||
}
|
||||
|
||||
void VT::restore_cursor(Core::Stream::Stream& stream)
|
||||
ErrorOr<void> VT::restore_cursor(Core::Stream::Stream& stream)
|
||||
{
|
||||
stream.write_entire_buffer("\033[u"sv.bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
return stream.write_entire_buffer("\033[u"sv.bytes());
|
||||
}
|
||||
|
||||
void VT::clear_to_end_of_line(Core::Stream::Stream& stream)
|
||||
ErrorOr<void> VT::clear_to_end_of_line(Core::Stream::Stream& stream)
|
||||
{
|
||||
stream.write_entire_buffer("\033[K"sv.bytes()).release_value_but_fixme_should_propagate_errors();
|
||||
return stream.write_entire_buffer("\033[K"sv.bytes());
|
||||
}
|
||||
|
||||
enum VTState {
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue