246 lines
8.0 KiB
C++
246 lines
8.0 KiB
C++
#include "client.hh"
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#include "face_registry.hh"
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#include "context.hh"
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#include "buffer_manager.hh"
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#include "user_interface.hh"
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#include "file.hh"
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#include "remote.hh"
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#include "client_manager.hh"
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#include "event_manager.hh"
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#include "window.hh"
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#include <signal.h>
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#include <unistd.h>
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namespace Kakoune
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{
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Client::Client(std::unique_ptr<UserInterface>&& ui,
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std::unique_ptr<Window>&& window,
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SelectionList selections,
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EnvVarMap env_vars,
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String name)
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: m_ui{std::move(ui)}, m_window{std::move(window)},
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m_input_handler{std::move(selections), Context::Flags::None,
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std::move(name)},
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m_env_vars(env_vars)
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{
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context().set_client(*this);
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context().set_window(*m_window);
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m_window->options().register_watcher(*this);
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m_ui->set_ui_options(m_window->options()["ui_options"].get<UserInterface::Options>());
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}
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Client::~Client()
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{
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m_window->options().unregister_watcher(*this);
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}
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Optional<Key> Client::get_next_key(EventMode mode)
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{
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if (not m_pending_keys.empty())
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{
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Key key = m_pending_keys.front();
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m_pending_keys.erase(m_pending_keys.begin());
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return key;
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}
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if (mode != EventMode::Pending and m_ui->is_key_available())
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return m_ui->get_key();
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return {};
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}
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void Client::handle_available_input(EventMode mode)
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{
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if (mode == EventMode::Urgent)
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{
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Key key = m_ui->get_key();
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if (key == ctrl('c'))
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killpg(getpgrp(), SIGINT);
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else
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m_pending_keys.push_back(key);
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}
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else
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{
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try
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{
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while (Optional<Key> key = get_next_key(mode))
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{
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if (*key == ctrl('c'))
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killpg(getpgrp(), SIGINT);
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else
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{
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m_input_handler.handle_key(*key);
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m_input_handler.clear_mode_trash();
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context().window().forget_timestamp();
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}
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}
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}
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catch (Kakoune::runtime_error& error)
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{
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context().print_status({ error.what(), get_face("Error") });
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context().hooks().run_hook("RuntimeError", error.what(), context());
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}
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catch (Kakoune::client_removed&)
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{
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ClientManager::instance().remove_client(*this);
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}
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}
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}
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void Client::print_status(DisplayLine status_line)
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{
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m_pending_status_line = std::move(status_line);
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}
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DisplayLine Client::generate_mode_line() const
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{
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auto pos = context().selections().main().cursor();
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auto col = context().buffer()[pos.line].char_count_to(pos.column);
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DisplayLine status;
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Face info_face = get_face("Information");
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Face status_face = get_face("StatusLine");
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status.push_back({ context().buffer().display_name(), status_face });
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status.push_back({ " " + to_string((int)pos.line+1) + ":" + to_string((int)col+1) + " ", status_face });
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if (context().buffer().is_modified())
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status.push_back({ "[+]", info_face });
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if (m_input_handler.is_recording())
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status.push_back({ "[recording ("_str + StringView{m_input_handler.recording_reg()} + ")]", info_face });
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if (context().buffer().flags() & Buffer::Flags::New)
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status.push_back({ "[new file]", info_face });
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if (context().user_hooks_support().is_disabled())
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status.push_back({ "[no-hooks]", info_face });
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if (context().buffer().flags() & Buffer::Flags::Fifo)
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status.push_back({ "[fifo]", info_face });
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status.push_back({ " ", status_face });
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for (auto& atom : m_input_handler.mode_line())
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status.push_back(std::move(atom));
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status.push_back({ " - " + context().name() + "@[" + Server::instance().session() + "]", status_face });
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return status;
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}
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void Client::change_buffer(Buffer& buffer)
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{
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auto& client_manager = ClientManager::instance();
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m_window->options().unregister_watcher(*this);
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client_manager.add_free_window(std::move(m_window),
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std::move(context().selections()));
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WindowAndSelections ws = client_manager.get_free_window(buffer);
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m_window = std::move(ws.window);
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m_window->options().register_watcher(*this);
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m_ui->set_ui_options(m_window->options()["ui_options"].get<UserInterface::Options>());
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context().m_selections = std::move(ws.selections);
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context().set_window(*m_window);
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m_window->set_dimensions(ui().dimensions());
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m_window->hooks().run_hook("WinDisplay", buffer.name(), context());
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}
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void Client::redraw_ifn()
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{
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DisplayLine mode_line = generate_mode_line();
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const bool buffer_changed = context().window().timestamp() != context().buffer().timestamp();
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const bool mode_line_changed = mode_line.atoms() != m_mode_line.atoms();
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const bool status_line_changed = m_status_line.atoms() != m_pending_status_line.atoms();
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if (buffer_changed or status_line_changed or mode_line_changed)
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{
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if (buffer_changed)
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{
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CharCoord dimensions = context().ui().dimensions();
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if (dimensions == CharCoord{0,0})
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return;
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context().window().set_dimensions(dimensions);
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context().window().update_display_buffer(context());
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}
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m_mode_line = std::move(mode_line);
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m_status_line = m_pending_status_line;
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context().ui().draw(context().window().display_buffer(),
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m_status_line, m_mode_line);
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}
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context().ui().refresh();
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}
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static void reload_buffer(Context& context, StringView filename)
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{
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CharCoord view_pos = context.window().position();
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ByteCoord cursor_pos = context.selections().main().cursor();
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Buffer* buf = create_buffer_from_file(filename);
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if (not buf)
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return;
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context.change_buffer(*buf);
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context.selections() = SelectionList{ *buf, buf->clamp(cursor_pos)};
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context.window().set_position(view_pos);
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context.print_status({ "'" + buf->display_name() + "' reloaded",
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get_face("Information") });
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}
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void Client::check_buffer_fs_timestamp()
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{
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Buffer& buffer = context().buffer();
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auto reload = context().options()["autoreload"].get<YesNoAsk>();
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if (not (buffer.flags() & Buffer::Flags::File) or reload == No)
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return;
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const String& filename = buffer.name();
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time_t ts = get_fs_timestamp(filename);
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if (ts == InvalidTime or ts == buffer.fs_timestamp())
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return;
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if (reload == Ask)
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{
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m_ui->info_show(
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"reload '" + buffer.display_name() + "' ?",
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"'" + buffer.display_name() + "' was modified externally\n"
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"press r or y to reload, k or n to keep",
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CharCoord{}, get_face("Information"), InfoStyle::Prompt);
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m_input_handler.on_next_key(KeymapMode::None,
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[this, filename](Key key, Context& context) {
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m_ui->info_hide();
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Buffer* buf = BufferManager::instance().get_buffer_ifp(filename);
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// buffer got deleted while waiting for the key, do nothing
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if (not buf)
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return;
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if (key == 'r' or key == 'y')
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reload_buffer(context, filename);
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else if (key == 'k' or key == 'n')
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{
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// reread timestamp in case the file was modified again
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buf->set_fs_timestamp(get_fs_timestamp(filename));
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print_status({ "'" + buf->display_name() + "' kept",
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get_face("Information") });
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}
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else
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{
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print_status({ "'" + key_to_str(key) + "' is not a valid choice",
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get_face("Error") });
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check_buffer_fs_timestamp();
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}
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});
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}
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else
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reload_buffer(context(), filename);
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}
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StringView Client::get_env_var(const String& name) const
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{
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auto it = m_env_vars.find(name);
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if (it == m_env_vars.end())
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return {};
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return it->second;
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}
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void Client::on_option_changed(const Option& option)
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{
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if (option.name() == "ui_options")
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m_ui->set_ui_options(option.get<UserInterface::Options>());
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}
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}
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