1545 lines
50 KiB
C++
1545 lines
50 KiB
C++
#include "input_handler.hh"
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#include "buffer_manager.hh"
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#include "buffer_utils.hh"
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#include "client.hh"
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#include "event_manager.hh"
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#include "face_registry.hh"
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#include "insert_completer.hh"
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#include "normal.hh"
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#include "regex.hh"
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#include "register_manager.hh"
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#include "unordered_map.hh"
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#include "user_interface.hh"
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#include "utf8.hh"
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#include "window.hh"
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namespace Kakoune
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{
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class InputMode : public RefCountable
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{
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public:
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InputMode(InputHandler& input_handler) : m_input_handler(input_handler) {}
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virtual ~InputMode() {}
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InputMode(const InputMode&) = delete;
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InputMode& operator=(const InputMode&) = delete;
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void handle_key(Key key) { RefPtr<InputMode> keep_alive{this}; on_key(key); }
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virtual void on_enabled() {}
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virtual void on_disabled() {}
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Context& context() const { return m_input_handler.context(); }
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virtual DisplayLine mode_line() const = 0;
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virtual KeymapMode keymap_mode() const = 0;
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using Insertion = InputHandler::Insertion;
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Insertion& last_insert() { return m_input_handler.m_last_insert; }
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protected:
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virtual void on_key(Key key) = 0;
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void push_mode(InputMode* new_mode)
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{
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m_input_handler.push_mode(new_mode);
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}
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void pop_mode()
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{
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m_input_handler.pop_mode(this);
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}
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private:
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InputHandler& m_input_handler;
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};
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namespace InputModes
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{
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std::chrono::milliseconds get_idle_timeout(const Context& context)
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{
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return std::chrono::milliseconds{context.options()["idle_timeout"].get<int>()};
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}
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std::chrono::milliseconds get_fs_check_timeout(const Context& context)
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{
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return std::chrono::milliseconds{context.options()["fs_check_timeout"].get<int>()};
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}
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struct MouseHandler
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{
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bool handle_key(Key key, Context& context)
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{
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if (not context.has_window())
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return false;
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Buffer& buffer = context.buffer();
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BufferCoord cursor;
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auto& selections = context.selections();
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switch ((Key::Modifiers)(key.modifiers & Key::Modifiers::MouseEvent))
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{
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case Key::Modifiers::MousePress:
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m_dragging = true;
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m_anchor = context.window().buffer_coord(key.coord());
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if (not (key.modifiers & Key::Modifiers::Control))
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context.selections_write_only() = { buffer, m_anchor};
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else
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{
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size_t main = selections.size();
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selections.push_back({m_anchor});
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selections.set_main_index(main);
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selections.sort_and_merge_overlapping();
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}
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return true;
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case Key::Modifiers::MouseRelease:
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if (not m_dragging)
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return true;
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m_dragging = false;
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cursor = context.window().buffer_coord(key.coord());
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selections.main() = {buffer.clamp(m_anchor), cursor};
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selections.sort_and_merge_overlapping();
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return true;
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case Key::Modifiers::MousePos:
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if (not m_dragging)
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return true;
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cursor = context.window().buffer_coord(key.coord());
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selections.main() = {buffer.clamp(m_anchor), cursor};
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selections.sort_and_merge_overlapping();
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return true;
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case Key::Modifiers::MouseWheelDown:
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m_dragging = false;
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scroll_window(context, 3);
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return true;
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case Key::Modifiers::MouseWheelUp:
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m_dragging = false;
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scroll_window(context, -3);
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return true;
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default: return false;
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}
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}
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private:
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bool m_dragging = false;
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BufferCoord m_anchor;
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};
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constexpr StringView register_doc =
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"Special registers:\n"
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" * %: buffer name\n"
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" * .: selection contents\n"
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" * #: selection index\n"
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" * [0-9]: selections capture group\n"
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" * _: null register\n"
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" * \": default yank/paste register\n"
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" * @: default macro register\n"
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" * /: default search register\n"
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" * ^: default mark register\n";
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class Normal : public InputMode
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{
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public:
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Normal(InputHandler& input_handler, bool single_command = false)
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: InputMode(input_handler),
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m_idle_timer{TimePoint::max(),
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context().flags() & Context::Flags::Transient ?
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Timer::Callback() : Timer::Callback([this](Timer& timer) {
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context().hooks().run_hook("NormalIdle", "", context());
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})},
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m_fs_check_timer{TimePoint::max(),
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context().flags() & Context::Flags::Transient ?
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Timer::Callback() : Timer::Callback([this](Timer& timer) {
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if (context().has_client())
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context().client().check_if_buffer_needs_reloading();
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timer.set_next_date(Clock::now() + get_fs_check_timeout(context()));
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})},
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m_single_command(single_command)
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{}
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void on_enabled() override
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{
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m_enabled = true;
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if (context().has_client())
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{
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context().client().info_hide();
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context().client().check_if_buffer_needs_reloading();
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}
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m_fs_check_timer.set_next_date(Clock::now() + get_fs_check_timeout(context()));
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m_idle_timer.set_next_date(Clock::now() + get_idle_timeout(context()));
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if (m_hooks_disabled and not m_in_on_key)
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{
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context().hooks_disabled().unset();
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m_hooks_disabled = false;
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}
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context().hooks().run_hook("NormalBegin", "", context());
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}
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void on_disabled() override
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{
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m_enabled = false;
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m_idle_timer.set_next_date(TimePoint::max());
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m_fs_check_timer.set_next_date(TimePoint::max());
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context().hooks().run_hook("NormalEnd", "", context());
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}
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void on_key(Key key) override
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{
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m_in_on_key.set();
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auto unset_in_on_key = on_scope_end([this]{ m_in_on_key.unset(); });
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bool do_restore_hooks = false;
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auto restore_hooks = on_scope_end([&, this]{
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if (m_hooks_disabled and m_enabled and do_restore_hooks)
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{
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context().hooks_disabled().unset();
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m_hooks_disabled = false;
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}
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});
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auto cp = key.codepoint();
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if (m_mouse_handler.handle_key(key, context()))
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m_idle_timer.set_next_date(Clock::now() + get_idle_timeout(context()));
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else if (cp and isdigit(*cp))
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{
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int new_val = m_params.count * 10 + *cp - '0';
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if (new_val < 0)
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context().print_status({ "parameter overflowed", get_face("Error") });
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else
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m_params.count = new_val;
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}
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else if (key == Key::Backspace)
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m_params.count /= 10;
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else if (key == '\\')
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{
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if (not m_hooks_disabled)
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{
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m_hooks_disabled = true;
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context().hooks_disabled().set();
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}
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}
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else if (key == '"')
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{
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on_next_key_with_autoinfo(context(), KeymapMode::None,
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[this](Key key, Context& context) {
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if (auto cp = key.codepoint())
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{
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if (*cp <= 127)
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m_params.reg = *cp;
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else
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context.print_status(
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{ format("invalid register '{}'", *cp),
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get_face("Error") });
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}
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}, "Enter target register", register_doc);
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}
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else
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{
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if (m_single_command)
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pop_mode();
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context().print_status({});
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if (context().has_client())
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context().client().info_hide();
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do_restore_hooks = true;
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auto it = std::lower_bound(keymap.begin(), keymap.end(), key,
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[](const NormalCmdDesc& lhs, const Key& rhs)
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{ return lhs.key < rhs; });
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if (it != keymap.end() and it->key == key)
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{
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auto autoinfo = context().options()["autoinfo"].get<AutoInfo>();
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if (autoinfo & AutoInfo::Normal and context().has_client())
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context().client().info_show(key_to_str(key), it->docstring.str(),
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{}, InfoStyle::Prompt);
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// reset m_params now to be reentrant
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NormalParams params = m_params;
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m_params = { 0, 0 };
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it->func(context(), params);
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}
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}
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context().hooks().run_hook("NormalKey", key_to_str(key), context());
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m_idle_timer.set_next_date(Clock::now() + get_idle_timeout(context()));
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}
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DisplayLine mode_line() const override
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{
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AtomList atoms = { { to_string(context().selections().size()) + " sel", get_face("StatusLineInfo") } };
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if (m_params.count != 0)
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{
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atoms.push_back({ " param=", get_face("StatusLineInfo") });
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atoms.push_back({ to_string(m_params.count), get_face("StatusLineValue") });
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}
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if (m_params.reg)
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{
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atoms.push_back({ " reg=", get_face("StatusLineInfo") });
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atoms.push_back({ StringView(m_params.reg).str(), get_face("StatusLineValue") });
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}
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return atoms;
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}
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KeymapMode keymap_mode() const override { return KeymapMode::Normal; }
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private:
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friend struct InputHandler::ScopedForceNormal;
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NormalParams m_params = { 0, 0 };
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bool m_hooks_disabled = false;
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bool m_enabled = false;
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NestedBool m_in_on_key;
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Timer m_idle_timer;
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Timer m_fs_check_timer;
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MouseHandler m_mouse_handler;
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const bool m_single_command;
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};
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template<WordType word_type>
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void to_next_word_begin(CharCount& pos, StringView line)
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{
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const CharCount len = line.char_length();
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if (pos == len)
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return;
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if (word_type == Word and is_punctuation(line[pos]))
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{
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while (pos != len and is_punctuation(line[pos]))
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++pos;
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}
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else if (is_word<word_type>(line[pos]))
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{
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while (pos != len and is_word<word_type>(line[pos]))
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++pos;
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}
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while (pos != len and is_horizontal_blank(line[pos]))
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++pos;
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}
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template<WordType word_type>
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void to_next_word_end(CharCount& pos, StringView line)
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{
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const CharCount len = line.char_length();
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if (pos + 1 >= len)
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return;
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++pos;
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while (pos != len and is_horizontal_blank(line[pos]))
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++pos;
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if (word_type == Word and is_punctuation(line[pos]))
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{
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while (pos != len and is_punctuation(line[pos]))
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++pos;
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}
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else if (is_word<word_type>(line[pos]))
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{
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while (pos != len and is_word<word_type>(line[pos]))
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++pos;
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}
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--pos;
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}
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template<WordType word_type>
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void to_prev_word_begin(CharCount& pos, StringView line)
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{
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if (pos == 0_char)
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return;
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--pos;
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while (pos != 0_char and is_horizontal_blank(line[pos]))
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--pos;
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if (word_type == Word and is_punctuation(line[pos]))
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{
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while (pos != 0_char and is_punctuation(line[pos]))
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--pos;
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if (!is_punctuation(line[pos]))
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++pos;
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}
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else if (is_word<word_type>(line[pos]))
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{
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while (pos != 0_char and is_word<word_type>(line[pos]))
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--pos;
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if (!is_word<word_type>(line[pos]))
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++pos;
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}
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}
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class LineEditor
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{
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public:
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void handle_key(Key key)
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{
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if (key == Key::Left or key == alt('h'))
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{
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if (m_cursor_pos > 0)
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--m_cursor_pos;
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}
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else if (key == Key::Right or key == alt('l'))
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{
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if (m_cursor_pos < m_line.char_length())
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++m_cursor_pos;
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}
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else if (key == Key::Home)
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m_cursor_pos = 0;
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else if (key == Key::End)
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m_cursor_pos = m_line.char_length();
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else if (key == Key::Backspace or key == alt('x'))
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{
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if (m_cursor_pos != 0)
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{
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m_line = m_line.substr(0_char, m_cursor_pos - 1)
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+ m_line.substr(m_cursor_pos);
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--m_cursor_pos;
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}
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}
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else if (key == Key::Delete or key == alt('d'))
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{
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if (m_cursor_pos != m_line.char_length())
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m_line = m_line.substr(0, m_cursor_pos)
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+ m_line.substr(m_cursor_pos+1);
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}
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else if (key == ctrl('w'))
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to_next_word_begin<Word>(m_cursor_pos, m_line);
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else if (key == ctrlalt('w'))
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to_next_word_begin<WORD>(m_cursor_pos, m_line);
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else if (key == ctrl('b'))
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to_prev_word_begin<Word>(m_cursor_pos, m_line);
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else if (key == ctrlalt('b'))
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to_prev_word_begin<WORD>(m_cursor_pos, m_line);
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else if (key == ctrl('e'))
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to_next_word_end<Word>(m_cursor_pos, m_line);
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else if (key == ctrlalt('e'))
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to_next_word_end<WORD>(m_cursor_pos, m_line);
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else if (key == ctrl('k'))
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m_line = m_line.substr(0_char, m_cursor_pos).str();
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else if (key == ctrl('u'))
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{
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m_line = m_line.substr(m_cursor_pos).str();
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m_cursor_pos = 0;
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}
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else if (auto cp = key.codepoint())
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insert(*cp);
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}
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void insert(Codepoint cp)
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{
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m_line = m_line.substr(0, m_cursor_pos) + String{cp}
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+ m_line.substr(m_cursor_pos);
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++m_cursor_pos;
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}
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void insert(StringView str)
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{
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insert_from(m_cursor_pos, str);
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}
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void insert_from(CharCount start, StringView str)
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{
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kak_assert(start <= m_cursor_pos);
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m_line = m_line.substr(0, start) + str
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+ m_line.substr(m_cursor_pos);
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m_cursor_pos = start + str.char_length();
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}
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void reset(String line)
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{
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m_line = std::move(line);
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m_cursor_pos = m_line.char_length();
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m_display_pos = 0;
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}
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const String& line() const { return m_line; }
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CharCount cursor_pos() const { return m_cursor_pos; }
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DisplayLine build_display_line(ColumnCount in_width)
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{
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auto cleanup = [](StringView str) {
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String res;
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auto pos = str.begin();
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for (auto it = str.begin(), end = str.end(); it != end; ++it)
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{
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char c = *it;
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if (c == '\n' or c == '\r')
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{
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res += StringView{pos, it};
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utf8::dump(std::back_inserter(res), c == '\n' ? 0x2424 : 0x240D);
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pos = it+1;
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}
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}
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res += StringView{pos, str.end()};
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return res;
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};
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CharCount width = (int)in_width; // Todo: proper handling of char/column
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kak_assert(m_cursor_pos <= m_line.char_length());
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if (m_cursor_pos < m_display_pos)
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m_display_pos = m_cursor_pos;
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if (m_cursor_pos >= m_display_pos + width)
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m_display_pos = m_cursor_pos + 1 - width;
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if (m_cursor_pos == m_line.char_length())
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return DisplayLine{{ { cleanup(m_line.substr(m_display_pos, width-1)), get_face("StatusLine") },
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{ " "_str, get_face("StatusCursor")} } };
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else
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return DisplayLine({ { cleanup(m_line.substr(m_display_pos, m_cursor_pos - m_display_pos)), get_face("StatusLine") },
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{ cleanup(m_line.substr(m_cursor_pos,1)), get_face("StatusCursor") },
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{ cleanup(m_line.substr(m_cursor_pos+1, width - m_cursor_pos + m_display_pos - 1)), get_face("StatusLine") } });
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}
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private:
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CharCount m_cursor_pos = 0;
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CharCount m_display_pos = 0;
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String m_line;
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};
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class Menu : public InputMode
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{
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public:
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Menu(InputHandler& input_handler, Vector<DisplayLine> choices,
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MenuCallback callback)
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: InputMode(input_handler),
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m_callback(callback), m_choices(choices.begin(), choices.end()),
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m_selected(m_choices.begin())
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{
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if (not context().has_client())
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return;
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context().client().menu_show(std::move(choices), {}, MenuStyle::Prompt);
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context().client().menu_select(0);
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}
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|
|
void on_key(Key key) override
|
|
{
|
|
auto match_filter = [this](const DisplayLine& choice) {
|
|
for (auto& atom : choice)
|
|
{
|
|
const auto& contents = atom.content();
|
|
if (regex_match(contents.begin(), contents.end(), m_filter))
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
if (key == Key::Return)
|
|
{
|
|
if (context().has_client())
|
|
context().client().menu_hide();
|
|
context().print_status(DisplayLine{});
|
|
|
|
// Maintain hooks disabled in callback if they were before pop_mode
|
|
ScopedSetBool disable_hooks(context().hooks_disabled(),
|
|
context().hooks_disabled());
|
|
pop_mode();
|
|
int selected = m_selected - m_choices.begin();
|
|
m_callback(selected, MenuEvent::Validate, context());
|
|
return;
|
|
}
|
|
else if (key == Key::Escape or key == ctrl('c'))
|
|
{
|
|
if (m_edit_filter)
|
|
{
|
|
m_edit_filter = false;
|
|
m_filter = Regex{".*"};
|
|
m_filter_editor.reset("");
|
|
context().print_status(DisplayLine{});
|
|
}
|
|
else
|
|
{
|
|
if (context().has_client())
|
|
context().client().menu_hide();
|
|
|
|
// Maintain hooks disabled in callback if they were before pop_mode
|
|
ScopedSetBool disable_hooks(context().hooks_disabled(),
|
|
context().hooks_disabled());
|
|
pop_mode();
|
|
int selected = m_selected - m_choices.begin();
|
|
m_callback(selected, MenuEvent::Abort, context());
|
|
}
|
|
}
|
|
else if (key == Key::Down or key == Key::Tab or
|
|
key == ctrl('n') or (not m_edit_filter and key == 'j'))
|
|
{
|
|
auto it = std::find_if(m_selected+1, m_choices.end(), match_filter);
|
|
if (it == m_choices.end())
|
|
it = std::find_if(m_choices.begin(), m_selected, match_filter);
|
|
select(it);
|
|
}
|
|
else if (key == Key::Up or key == Key::BackTab or
|
|
key == ctrl('p') or (not m_edit_filter and key == 'k'))
|
|
{
|
|
ChoiceList::const_reverse_iterator selected(m_selected+1);
|
|
auto it = std::find_if(selected+1, m_choices.rend(), match_filter);
|
|
if (it == m_choices.rend())
|
|
it = std::find_if(m_choices.rbegin(), selected, match_filter);
|
|
select(it.base()-1);
|
|
}
|
|
else if (key == '/' and not m_edit_filter)
|
|
{
|
|
m_edit_filter = true;
|
|
}
|
|
else if (m_edit_filter)
|
|
{
|
|
m_filter_editor.handle_key(key);
|
|
|
|
auto search = ".*" + m_filter_editor.line() + ".*";
|
|
m_filter = Regex{search};
|
|
auto it = std::find_if(m_selected, m_choices.end(), match_filter);
|
|
if (it == m_choices.end())
|
|
it = std::find_if(m_choices.begin(), m_selected, match_filter);
|
|
select(it);
|
|
}
|
|
|
|
if (m_edit_filter and context().has_client())
|
|
{
|
|
auto prompt = "filter:"_str;
|
|
auto width = context().client().dimensions().column - prompt.column_length();
|
|
auto display_line = m_filter_editor.build_display_line(width);
|
|
display_line.insert(display_line.begin(), { prompt, get_face("Prompt") });
|
|
context().print_status(display_line);
|
|
}
|
|
}
|
|
|
|
DisplayLine mode_line() const override
|
|
{
|
|
return { "menu", get_face("StatusLineMode") };
|
|
}
|
|
|
|
KeymapMode keymap_mode() const override { return KeymapMode::Menu; }
|
|
|
|
private:
|
|
MenuCallback m_callback;
|
|
|
|
using ChoiceList = Vector<DisplayLine>;
|
|
const ChoiceList m_choices;
|
|
ChoiceList::const_iterator m_selected;
|
|
|
|
void select(ChoiceList::const_iterator it)
|
|
{
|
|
m_selected = it;
|
|
int selected = m_selected - m_choices.begin();
|
|
if (context().has_client())
|
|
context().client().menu_select(selected);
|
|
m_callback(selected, MenuEvent::Select, context());
|
|
}
|
|
|
|
Regex m_filter = Regex{".*"};
|
|
bool m_edit_filter = false;
|
|
LineEditor m_filter_editor;
|
|
};
|
|
|
|
String common_prefix(ConstArrayView<String> strings)
|
|
{
|
|
String res;
|
|
if (strings.empty())
|
|
return res;
|
|
res = strings[0];
|
|
for (auto& str : strings)
|
|
{
|
|
ByteCount len = std::min(res.length(), str.length());
|
|
ByteCount common_len = 0;
|
|
while (common_len < len and str[common_len] == res[common_len])
|
|
++common_len;
|
|
if (common_len != res.length())
|
|
res = res.substr(0, common_len).str();
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static Optional<Codepoint> get_raw_codepoint(Key key)
|
|
{
|
|
if (auto cp = key.codepoint())
|
|
return cp;
|
|
else if (key.modifiers == Key::Modifiers::Control and
|
|
((key.key >= '@' and key.key <= '_') or
|
|
(key.key >= 'a' and key.key <= 'z')))
|
|
return {(Codepoint)(to_upper((char)key.key) - '@')};
|
|
return {};
|
|
}
|
|
|
|
class Prompt : public InputMode
|
|
{
|
|
public:
|
|
Prompt(InputHandler& input_handler, StringView prompt,
|
|
String initstr, Face face, PromptFlags flags,
|
|
Completer completer, PromptCallback callback)
|
|
: InputMode(input_handler), m_prompt(prompt.str()), m_prompt_face(face),
|
|
m_flags(flags), m_completer(completer), m_callback(callback),
|
|
m_autoshowcompl{context().options()["autoshowcompl"].get<bool>()}
|
|
{
|
|
m_history_it = ms_history[m_prompt].end();
|
|
if (m_autoshowcompl)
|
|
refresh_completions(CompletionFlags::Fast);
|
|
m_line_editor.reset(std::move(initstr));
|
|
}
|
|
|
|
void on_key(Key key) override
|
|
{
|
|
History& history = ms_history[m_prompt];
|
|
const String& line = m_line_editor.line();
|
|
bool showcompl = false;
|
|
|
|
if (key == Key::Return)
|
|
{
|
|
if (not context().history_disabled())
|
|
history_push(history, line);
|
|
context().print_status(DisplayLine{});
|
|
if (context().has_client())
|
|
context().client().menu_hide();
|
|
|
|
// Maintain hooks disabled in callback if they were before pop_mode
|
|
ScopedSetBool disable_hooks(context().hooks_disabled(),
|
|
context().hooks_disabled());
|
|
pop_mode();
|
|
// call callback after pop_mode so that callback
|
|
// may change the mode
|
|
m_callback(line, PromptEvent::Validate, context());
|
|
return;
|
|
}
|
|
else if (key == Key::Escape or key == ctrl('c'))
|
|
{
|
|
if (not context().history_disabled())
|
|
history_push(history, line);
|
|
context().print_status(DisplayLine{});
|
|
if (context().has_client())
|
|
context().client().menu_hide();
|
|
|
|
// Maintain hooks disabled in callback if they were before pop_mode
|
|
ScopedSetBool disable_hooks(context().hooks_disabled(),
|
|
context().hooks_disabled());
|
|
pop_mode();
|
|
m_callback(line, PromptEvent::Abort, context());
|
|
return;
|
|
}
|
|
else if (key == ctrl('r'))
|
|
{
|
|
on_next_key_with_autoinfo(context(), KeymapMode::None,
|
|
[this](Key key, Context&) {
|
|
if (auto cp = key.codepoint())
|
|
{
|
|
StringView reg = context().main_sel_register_value(String{*cp});
|
|
m_line_editor.insert(reg);
|
|
|
|
display();
|
|
m_callback(m_line_editor.line(), PromptEvent::Change, context());
|
|
}
|
|
}, "Enter register name", register_doc);
|
|
display();
|
|
return;
|
|
}
|
|
else if (key == ctrl('v'))
|
|
{
|
|
on_next_key_with_autoinfo(context(), KeymapMode::None,
|
|
[this](Key key, Context&) {
|
|
if (auto cp = get_raw_codepoint(key))
|
|
{
|
|
m_line_editor.insert(*cp);
|
|
display();
|
|
m_callback(m_line_editor.line(), PromptEvent::Change, context());
|
|
}
|
|
}, "raw insert", "enter key to insert");
|
|
display();
|
|
return;
|
|
}
|
|
else if (key == Key::Up or key == ctrl('p'))
|
|
{
|
|
if (m_history_it != history.begin())
|
|
{
|
|
if (m_history_it == history.end())
|
|
m_prefix = line;
|
|
auto it = m_history_it;
|
|
// search for the previous history entry matching typed prefix
|
|
do
|
|
{
|
|
--it;
|
|
if (prefix_match(*it, m_prefix))
|
|
{
|
|
m_history_it = it;
|
|
m_line_editor.reset(*it);
|
|
break;
|
|
}
|
|
} while (it != history.begin());
|
|
|
|
clear_completions();
|
|
showcompl = true;
|
|
}
|
|
}
|
|
else if (key == Key::Down or key == ctrl('n')) // next
|
|
{
|
|
if (m_history_it != history.end())
|
|
{
|
|
// search for the next history entry matching typed prefix
|
|
++m_history_it;
|
|
while (m_history_it != history.end() and
|
|
not prefix_match(*m_history_it, m_prefix))
|
|
++m_history_it;
|
|
|
|
if (m_history_it != history.end())
|
|
m_line_editor.reset(*m_history_it);
|
|
else
|
|
m_line_editor.reset(m_prefix);
|
|
|
|
clear_completions();
|
|
showcompl = true;
|
|
}
|
|
}
|
|
else if (key == Key::Tab or key == Key::BackTab) // tab completion
|
|
{
|
|
const bool reverse = (key == Key::BackTab);
|
|
CandidateList& candidates = m_completions.candidates;
|
|
// first try, we need to ask our completer for completions
|
|
if (candidates.empty())
|
|
{
|
|
refresh_completions(CompletionFlags::None);
|
|
if ((not m_prefix_in_completions and candidates.size() > 1) or
|
|
candidates.size() > 2)
|
|
return;
|
|
}
|
|
|
|
if (candidates.empty())
|
|
return;
|
|
|
|
if (not reverse and ++m_current_completion >= candidates.size())
|
|
m_current_completion = 0;
|
|
else if (reverse and --m_current_completion < 0)
|
|
m_current_completion = candidates.size()-1;
|
|
|
|
const String& completion = candidates[m_current_completion];
|
|
if (context().has_client())
|
|
context().client().menu_select(m_current_completion);
|
|
|
|
m_line_editor.insert_from(line.char_count_to(m_completions.start),
|
|
completion);
|
|
|
|
// when we have only one completion candidate, make next tab complete
|
|
// from the new content.
|
|
if (candidates.size() == 1 or
|
|
(m_prefix_in_completions and candidates.size() == 2))
|
|
{
|
|
m_current_completion = -1;
|
|
candidates.clear();
|
|
showcompl = true;
|
|
}
|
|
}
|
|
else if (key == ctrl('o'))
|
|
{
|
|
m_autoshowcompl = false;
|
|
clear_completions();
|
|
}
|
|
else
|
|
{
|
|
m_line_editor.handle_key(key);
|
|
clear_completions();
|
|
showcompl = true;
|
|
}
|
|
|
|
if (showcompl and m_autoshowcompl)
|
|
refresh_completions(CompletionFlags::Fast);
|
|
|
|
display();
|
|
m_callback(line, PromptEvent::Change, context());
|
|
}
|
|
|
|
void set_prompt_face(Face face)
|
|
{
|
|
if (face != m_prompt_face)
|
|
{
|
|
m_prompt_face = face;
|
|
display();
|
|
}
|
|
}
|
|
|
|
DisplayLine mode_line() const override
|
|
{
|
|
return { "prompt", get_face("StatusLineMode") };
|
|
}
|
|
|
|
KeymapMode keymap_mode() const override { return KeymapMode::Prompt; }
|
|
|
|
private:
|
|
void refresh_completions(CompletionFlags flags)
|
|
{
|
|
try
|
|
{
|
|
if (not m_completer)
|
|
return;
|
|
m_current_completion = -1;
|
|
const String& line = m_line_editor.line();
|
|
m_completions = m_completer(context(), flags, line,
|
|
line.byte_count_to(m_line_editor.cursor_pos()));
|
|
if (context().has_client() and not m_completions.candidates.empty())
|
|
{
|
|
Vector<DisplayLine> items;
|
|
for (auto& candidate : m_completions.candidates)
|
|
items.push_back({ candidate, {} });
|
|
context().client().menu_show(items, {}, MenuStyle::Prompt);
|
|
|
|
auto prefix = line.substr(m_completions.start, m_completions.end - m_completions.start);
|
|
if (not contains(m_completions.candidates, prefix))
|
|
{
|
|
m_completions.candidates.push_back(prefix.str());
|
|
m_prefix_in_completions = true;
|
|
}
|
|
else
|
|
m_prefix_in_completions = false;
|
|
}
|
|
} catch (runtime_error&) {}
|
|
}
|
|
|
|
void clear_completions()
|
|
{
|
|
m_current_completion = -1;
|
|
m_completions.candidates.clear();
|
|
if (context().has_client())
|
|
context().client().menu_hide();
|
|
}
|
|
|
|
void display()
|
|
{
|
|
if (not context().has_client())
|
|
return;
|
|
|
|
auto width = context().client().dimensions().column - m_prompt.column_length();
|
|
DisplayLine display_line;
|
|
if (not (m_flags & PromptFlags::Password))
|
|
display_line = m_line_editor.build_display_line(width);
|
|
display_line.insert(display_line.begin(), { m_prompt, m_prompt_face });
|
|
context().print_status(display_line);
|
|
}
|
|
|
|
void on_enabled() override { display(); }
|
|
void on_disabled() override { context().print_status({}); }
|
|
|
|
PromptCallback m_callback;
|
|
Completer m_completer;
|
|
const String m_prompt;
|
|
Face m_prompt_face;
|
|
Completions m_completions;
|
|
int m_current_completion = -1;
|
|
bool m_prefix_in_completions = false;
|
|
String m_prefix;
|
|
LineEditor m_line_editor;
|
|
bool m_autoshowcompl;
|
|
PromptFlags m_flags;
|
|
bool m_history_drop_blank_prefix;
|
|
|
|
using History = Vector<String, MemoryDomain::History>;
|
|
static UnorderedMap<String, History, MemoryDomain::History> ms_history;
|
|
History::iterator m_history_it;
|
|
|
|
void history_push(History& history, StringView entry)
|
|
{
|
|
if(entry.empty() or
|
|
(m_flags & PromptFlags::DropHistoryEntriesWithBlankPrefix and
|
|
is_horizontal_blank(entry[0_byte])))
|
|
return;
|
|
|
|
history.erase(std::remove(history.begin(), history.end(), entry),
|
|
history.end());
|
|
history.push_back(entry.str());
|
|
}
|
|
};
|
|
UnorderedMap<String, Prompt::History, MemoryDomain::History> Prompt::ms_history;
|
|
|
|
class NextKey : public InputMode
|
|
{
|
|
public:
|
|
NextKey(InputHandler& input_handler, KeymapMode keymap_mode, KeyCallback callback)
|
|
: InputMode(input_handler), m_keymap_mode(keymap_mode), m_callback(std::move(callback)) {}
|
|
|
|
void on_key(Key key) override
|
|
{
|
|
// maintain hooks disabled in the callback if they were before pop_mode
|
|
ScopedSetBool disable_hooks(context().hooks_disabled(),
|
|
context().hooks_disabled());
|
|
pop_mode();
|
|
m_callback(key, context());
|
|
}
|
|
|
|
DisplayLine mode_line() const override
|
|
{
|
|
return { "enter key", get_face("StatusLineMode") };
|
|
}
|
|
|
|
KeymapMode keymap_mode() const override { return m_keymap_mode; }
|
|
|
|
private:
|
|
KeyCallback m_callback;
|
|
KeymapMode m_keymap_mode;
|
|
};
|
|
|
|
class Insert : public InputMode
|
|
{
|
|
public:
|
|
Insert(InputHandler& input_handler, InsertMode mode, int count)
|
|
: InputMode(input_handler),
|
|
m_insert_mode(mode),
|
|
m_edition(context()),
|
|
m_completer(context()),
|
|
m_autoshowcompl(true),
|
|
m_idle_timer{TimePoint::max(),
|
|
[this](Timer& timer) {
|
|
if (m_autoshowcompl)
|
|
m_completer.update();
|
|
context().hooks().run_hook("InsertIdle", "", context());
|
|
}}
|
|
{
|
|
last_insert().mode = mode;
|
|
last_insert().keys.clear();
|
|
last_insert().disable_hooks = context().hooks_disabled();
|
|
context().hooks().run_hook("InsertBegin", "", context());
|
|
prepare(m_insert_mode, count);
|
|
|
|
if (context().has_client() and
|
|
context().options()["readonly"].get<bool>())
|
|
context().print_status({ "Entering insert mode while readonly",
|
|
get_face("Information") });
|
|
}
|
|
|
|
~Insert()
|
|
{
|
|
auto& selections = context().selections();
|
|
for (auto& sel : selections)
|
|
{
|
|
if (m_insert_mode == InsertMode::Append and sel.cursor().column > 0)
|
|
sel.cursor() = context().buffer().char_prev(sel.cursor());
|
|
}
|
|
selections.avoid_eol();
|
|
}
|
|
|
|
void on_enabled() override
|
|
{
|
|
m_idle_timer.set_next_date(Clock::now() + get_idle_timeout(context()));
|
|
}
|
|
|
|
void on_disabled() override
|
|
{
|
|
m_idle_timer.set_next_date(TimePoint::max());
|
|
}
|
|
|
|
void on_key(Key key) override
|
|
{
|
|
auto& buffer = context().buffer();
|
|
last_insert().keys.push_back(key);
|
|
|
|
bool update_completions = true;
|
|
bool moved = false;
|
|
if (m_mouse_handler.handle_key(key, context()))
|
|
m_idle_timer.set_next_date(Clock::now() + get_idle_timeout(context()));
|
|
else if (key == Key::Escape or key == ctrl('c'))
|
|
{
|
|
if (m_in_end)
|
|
throw runtime_error("Asked to exit insert mode while running InsertEnd hook");
|
|
m_in_end = true;
|
|
context().hooks().run_hook("InsertEnd", "", context());
|
|
|
|
m_completer.reset();
|
|
pop_mode();
|
|
}
|
|
else if (key == Key::Backspace)
|
|
{
|
|
Vector<Selection> sels;
|
|
for (auto& sel : context().selections())
|
|
{
|
|
if (sel.cursor() == BufferCoord{0,0})
|
|
continue;
|
|
auto pos = sel.cursor();
|
|
sels.push_back({ buffer.char_prev(pos) });
|
|
}
|
|
if (not sels.empty())
|
|
SelectionList{buffer, std::move(sels)}.erase();
|
|
}
|
|
else if (key == Key::Delete)
|
|
{
|
|
Vector<Selection> sels;
|
|
for (auto& sel : context().selections())
|
|
sels.push_back({ sel.cursor() });
|
|
SelectionList{buffer, std::move(sels)}.erase();
|
|
}
|
|
else if (key == Key::Left)
|
|
{
|
|
move(-1_char);
|
|
moved = true;
|
|
}
|
|
else if (key == Key::Right)
|
|
{
|
|
move(1_char);
|
|
moved = true;
|
|
}
|
|
else if (key == Key::Up)
|
|
{
|
|
move(-1_line);
|
|
moved = true;
|
|
}
|
|
else if (key == Key::Down)
|
|
{
|
|
move(1_line);
|
|
moved = true;
|
|
}
|
|
else if (key == Key::Home)
|
|
{
|
|
auto& selections = context().selections();
|
|
for (auto& sel : selections)
|
|
sel.anchor() = sel.cursor() = BufferCoord{sel.cursor().line, 0};
|
|
selections.sort_and_merge_overlapping();
|
|
}
|
|
else if (key == Key::End)
|
|
{
|
|
auto& buffer = context().buffer();
|
|
auto& selections = context().selections();
|
|
for (auto& sel : selections)
|
|
{
|
|
const LineCount line = sel.cursor().line;
|
|
sel.anchor() = sel.cursor() = buffer.clamp({line, buffer[line].length()});
|
|
}
|
|
selections.sort_and_merge_overlapping();
|
|
}
|
|
else if (auto cp = key.codepoint())
|
|
insert(*cp);
|
|
else if (key == ctrl('r'))
|
|
{
|
|
on_next_key_with_autoinfo(context(), KeymapMode::None,
|
|
[this](Key key, Context&) {
|
|
if (auto cp = key.codepoint())
|
|
insert(RegisterManager::instance()[*cp].values(context()));
|
|
}, "Enter register name", register_doc);
|
|
update_completions = false;
|
|
}
|
|
else if (key == ctrl('n'))
|
|
{
|
|
last_insert().keys.pop_back();
|
|
m_completer.select(1, last_insert().keys);
|
|
update_completions = false;
|
|
}
|
|
else if (key == ctrl('p'))
|
|
{
|
|
last_insert().keys.pop_back();
|
|
m_completer.select(-1, last_insert().keys);
|
|
update_completions = false;
|
|
}
|
|
else if (key == ctrl('x'))
|
|
{
|
|
on_next_key_with_autoinfo(context(), KeymapMode::None,
|
|
[this](Key key, Context&) {
|
|
if (key.key == 'f')
|
|
m_completer.explicit_file_complete();
|
|
if (key.key == 'w')
|
|
m_completer.explicit_word_complete();
|
|
if (key.key == 'l')
|
|
m_completer.explicit_line_complete();
|
|
}, "Complete",
|
|
" Enter completion type:\n"
|
|
" * f: filename completion\n"
|
|
" * w: word completion\n"
|
|
" * l: line completion\n");
|
|
update_completions = false;
|
|
}
|
|
else if (key == ctrl('o'))
|
|
{
|
|
m_autoshowcompl = false;
|
|
m_completer.reset();
|
|
}
|
|
else if (key == ctrl('u'))
|
|
context().buffer().commit_undo_group();
|
|
else if (key == ctrl('v'))
|
|
{
|
|
on_next_key_with_autoinfo(context(), KeymapMode::None,
|
|
[this](Key key, Context&) {
|
|
if (auto cp = get_raw_codepoint(key))
|
|
{
|
|
insert(*cp);
|
|
context().hooks().run_hook("InsertKey", key_to_str(key), context());
|
|
m_idle_timer.set_next_date(Clock::now() + get_idle_timeout(context()));
|
|
}
|
|
}, "raw insert", "enter key to insert");
|
|
update_completions = false;
|
|
}
|
|
else if (key == alt(';'))
|
|
{
|
|
push_mode(new Normal(context().input_handler(), true));
|
|
return;
|
|
}
|
|
|
|
context().hooks().run_hook("InsertKey", key_to_str(key), context());
|
|
|
|
if (update_completions)
|
|
m_idle_timer.set_next_date(Clock::now() + get_idle_timeout(context()));
|
|
if (moved)
|
|
context().hooks().run_hook("InsertMove", key_to_str(key), context());
|
|
}
|
|
|
|
DisplayLine mode_line() const override
|
|
{
|
|
auto num_sel = context().selections().size();
|
|
return {AtomList{ { "insert ", get_face("StatusLineMode") },
|
|
{ format( "{} sel", num_sel), get_face("StatusLineInfo") } }};
|
|
}
|
|
|
|
KeymapMode keymap_mode() const override { return KeymapMode::Insert; }
|
|
|
|
private:
|
|
template<typename Type>
|
|
void move(Type offset)
|
|
{
|
|
auto& selections = context().selections();
|
|
for (auto& sel : selections)
|
|
{
|
|
auto cursor = context().has_window() ? context().window().offset_coord(sel.cursor(), offset)
|
|
: context().buffer().offset_coord(sel.cursor(), offset);
|
|
sel.anchor() = sel.cursor() = cursor;
|
|
}
|
|
selections.sort_and_merge_overlapping();
|
|
}
|
|
|
|
void insert(ConstArrayView<String> strings)
|
|
{
|
|
context().selections().insert(strings, InsertMode::InsertCursor);
|
|
}
|
|
|
|
void insert(Codepoint key)
|
|
{
|
|
String str{key};
|
|
context().selections().insert(str, InsertMode::InsertCursor);
|
|
context().hooks().run_hook("InsertChar", str, context());
|
|
}
|
|
|
|
void prepare(InsertMode mode, int count)
|
|
{
|
|
SelectionList& selections = context().selections();
|
|
Buffer& buffer = context().buffer();
|
|
|
|
auto duplicate_selections = [](SelectionList& sels, int count) {
|
|
count = count > 0 ? count : 1;
|
|
Vector<Selection> new_sels;
|
|
new_sels.reserve(count * sels.size());
|
|
for (auto& sel : sels)
|
|
for (int i = 0; i < count; ++i)
|
|
new_sels.push_back(sel);
|
|
|
|
size_t new_main = sels.main_index() * count + count - 1;
|
|
sels = SelectionList{sels.buffer(), std::move(new_sels)};
|
|
sels.set_main_index(new_main);
|
|
};
|
|
|
|
switch (mode)
|
|
{
|
|
case InsertMode::Insert:
|
|
for (auto& sel : selections)
|
|
sel = Selection{sel.max(), sel.min()};
|
|
break;
|
|
case InsertMode::Replace:
|
|
selections.erase();
|
|
break;
|
|
case InsertMode::Append:
|
|
for (auto& sel : selections)
|
|
{
|
|
sel = Selection{sel.min(), sel.max()};
|
|
auto& cursor = sel.cursor();
|
|
// special case for end of lines, append to current line instead
|
|
if (cursor.column != buffer[cursor.line].length() - 1)
|
|
cursor = buffer.char_next(cursor);
|
|
}
|
|
break;
|
|
case InsertMode::AppendAtLineEnd:
|
|
for (auto& sel : selections)
|
|
sel = BufferCoord{sel.max().line, buffer[sel.max().line].length() - 1};
|
|
break;
|
|
case InsertMode::OpenLineBelow:
|
|
for (auto& sel : selections)
|
|
sel = BufferCoord{sel.max().line, buffer[sel.max().line].length() - 1};
|
|
duplicate_selections(selections, count);
|
|
insert('\n');
|
|
break;
|
|
case InsertMode::OpenLineAbove:
|
|
for (auto& sel : selections)
|
|
sel = BufferCoord{sel.min().line};
|
|
duplicate_selections(selections, count);
|
|
// Do not use insert method here as we need to fixup selection
|
|
// before running the InsertChar hook.
|
|
selections.insert("\n"_str, InsertMode::InsertCursor);
|
|
for (auto& sel : selections) // fixup selection positions
|
|
sel = BufferCoord{sel.cursor().line - 1};
|
|
context().hooks().run_hook("InsertChar", "\n", context());
|
|
break;
|
|
case InsertMode::InsertAtLineBegin:
|
|
for (auto& sel : selections)
|
|
{
|
|
BufferCoord pos = sel.min().line;
|
|
auto pos_non_blank = buffer.iterator_at(pos);
|
|
while (*pos_non_blank == ' ' or *pos_non_blank == '\t')
|
|
++pos_non_blank;
|
|
if (*pos_non_blank != '\n')
|
|
pos = pos_non_blank.coord();
|
|
sel = pos;
|
|
}
|
|
break;
|
|
case InsertMode::InsertAtNextLineBegin:
|
|
case InsertMode::InsertCursor:
|
|
kak_assert(false); // invalid for interactive insert
|
|
break;
|
|
}
|
|
if (mode != InsertMode::Append and mode != InsertMode::Replace)
|
|
selections.sort_and_merge_overlapping();
|
|
selections.check_invariant();
|
|
buffer.check_invariant();
|
|
}
|
|
|
|
InsertMode m_insert_mode;
|
|
ScopedEdition m_edition;
|
|
InsertCompleter m_completer;
|
|
bool m_autoshowcompl;
|
|
Timer m_idle_timer;
|
|
bool m_in_end = false;
|
|
MouseHandler m_mouse_handler;
|
|
};
|
|
|
|
}
|
|
|
|
InputHandler::InputHandler(SelectionList selections, Context::Flags flags, String name)
|
|
: m_context(*this, std::move(selections), flags, std::move(name))
|
|
{
|
|
m_mode_stack.emplace_back(new InputModes::Normal(*this));
|
|
current_mode().on_enabled();
|
|
}
|
|
|
|
InputHandler::~InputHandler()
|
|
{}
|
|
|
|
void InputHandler::push_mode(InputMode* new_mode)
|
|
{
|
|
current_mode().on_disabled();
|
|
m_mode_stack.emplace_back(new_mode);
|
|
new_mode->on_enabled();
|
|
}
|
|
|
|
void InputHandler::pop_mode(InputMode* mode)
|
|
{
|
|
kak_assert(m_mode_stack.back().get() == mode);
|
|
kak_assert(m_mode_stack.size() > 1);
|
|
|
|
current_mode().on_disabled();
|
|
m_mode_stack.pop_back();
|
|
current_mode().on_enabled();
|
|
}
|
|
|
|
void InputHandler::reset_normal_mode()
|
|
{
|
|
if (m_mode_stack.size() > 1)
|
|
{
|
|
current_mode().on_disabled();
|
|
m_mode_stack.resize(1);
|
|
}
|
|
kak_assert(dynamic_cast<InputModes::Normal*>(¤t_mode()) != nullptr);
|
|
current_mode().on_enabled();
|
|
}
|
|
|
|
void InputHandler::insert(InsertMode mode, int count)
|
|
{
|
|
push_mode(new InputModes::Insert(*this, mode, count));
|
|
}
|
|
|
|
void InputHandler::repeat_last_insert()
|
|
{
|
|
if (m_last_insert.keys.empty())
|
|
return;
|
|
|
|
Vector<Key> keys;
|
|
swap(keys, m_last_insert.keys);
|
|
ScopedSetBool disable_hooks(context().hooks_disabled(),
|
|
m_last_insert.disable_hooks);
|
|
// context.last_insert will be refilled by the new Insert
|
|
// this is very inefficient.
|
|
push_mode(new InputModes::Insert(*this, m_last_insert.mode, 1));
|
|
for (auto& key : keys)
|
|
current_mode().handle_key(key);
|
|
kak_assert(dynamic_cast<InputModes::Normal*>(¤t_mode()) != nullptr);
|
|
}
|
|
|
|
void InputHandler::prompt(StringView prompt, String initstr,
|
|
Face prompt_face, PromptFlags flags,
|
|
Completer completer, PromptCallback callback)
|
|
{
|
|
push_mode(new InputModes::Prompt(*this, prompt, initstr, prompt_face,
|
|
flags, completer, callback));
|
|
}
|
|
|
|
void InputHandler::set_prompt_face(Face prompt_face)
|
|
{
|
|
InputModes::Prompt* prompt = dynamic_cast<InputModes::Prompt*>(¤t_mode());
|
|
if (prompt)
|
|
prompt->set_prompt_face(prompt_face);
|
|
}
|
|
|
|
void InputHandler::menu(Vector<DisplayLine> choices, MenuCallback callback)
|
|
{
|
|
push_mode(new InputModes::Menu(*this, std::move(choices), callback));
|
|
}
|
|
|
|
void InputHandler::on_next_key(KeymapMode keymap_mode, KeyCallback callback)
|
|
{
|
|
push_mode(new InputModes::NextKey(*this, keymap_mode, callback));
|
|
}
|
|
|
|
InputHandler::ScopedForceNormal::ScopedForceNormal(InputHandler& handler, NormalParams params)
|
|
: m_handler(handler), m_mode(nullptr)
|
|
{
|
|
if (handler.m_mode_stack.size() != 1)
|
|
{
|
|
handler.push_mode(new InputModes::Normal(handler));
|
|
m_mode = handler.m_mode_stack.back().get();
|
|
}
|
|
|
|
static_cast<InputModes::Normal*>(handler.m_mode_stack.back().get())->m_params = params;
|
|
}
|
|
|
|
InputHandler::ScopedForceNormal::~ScopedForceNormal()
|
|
{
|
|
if (not m_mode)
|
|
return;
|
|
|
|
kak_assert(m_handler.m_mode_stack.size() > 1);
|
|
|
|
if (m_mode == m_handler.m_mode_stack.back().get())
|
|
m_handler.pop_mode(m_mode);
|
|
else
|
|
{
|
|
auto it = find_if(m_handler.m_mode_stack,
|
|
[this](const RefPtr<InputMode>& m)
|
|
{ return m.get() == m_mode; });
|
|
kak_assert(it != m_handler.m_mode_stack.end());
|
|
m_handler.m_mode_stack.erase(it);
|
|
}
|
|
}
|
|
|
|
static bool is_valid(Key key)
|
|
{
|
|
return key != Key::Invalid and
|
|
((key.modifiers & ~Key::Modifiers::ControlAlt) or key.key <= 0x10FFFF);
|
|
}
|
|
|
|
void InputHandler::handle_key(Key key)
|
|
{
|
|
if (is_valid(key))
|
|
{
|
|
const bool was_recording = is_recording();
|
|
++m_handle_key_level;
|
|
auto dec = on_scope_end([&]{ --m_handle_key_level; });
|
|
|
|
auto keymap_mode = current_mode().keymap_mode();
|
|
KeymapManager& keymaps = m_context.keymaps();
|
|
if (keymaps.is_mapped(key, keymap_mode) and
|
|
not m_context.keymaps_disabled())
|
|
{
|
|
ScopedSetBool disable_history{context().history_disabled()};
|
|
for (auto& k : keymaps.get_mapping(key, keymap_mode))
|
|
current_mode().handle_key(k);
|
|
}
|
|
else
|
|
current_mode().handle_key(key);
|
|
|
|
// do not record the key that made us enter or leave recording mode,
|
|
// and the ones that are triggered recursively by previous keys.
|
|
if (was_recording and is_recording() and m_handle_key_level == m_recording_level)
|
|
m_recorded_keys += key_to_str(key);
|
|
|
|
if (m_handle_key_level < m_recording_level)
|
|
{
|
|
write_to_debug_buffer("Macro recording started but not finished");
|
|
m_recording_reg = 0;
|
|
m_recording_level = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputHandler::start_recording(char reg)
|
|
{
|
|
kak_assert(m_recording_reg == 0);
|
|
m_recording_level = m_handle_key_level;
|
|
m_recorded_keys = "";
|
|
m_recording_reg = reg;
|
|
}
|
|
|
|
bool InputHandler::is_recording() const
|
|
{
|
|
return m_recording_reg != 0;
|
|
}
|
|
|
|
void InputHandler::stop_recording()
|
|
{
|
|
kak_assert(m_recording_reg != 0);
|
|
|
|
if (not m_recorded_keys.empty())
|
|
RegisterManager::instance()[m_recording_reg] = {m_recorded_keys};
|
|
|
|
m_recording_reg = 0;
|
|
m_recording_level = -1;
|
|
}
|
|
|
|
DisplayLine InputHandler::mode_line() const
|
|
{
|
|
return current_mode().mode_line();
|
|
}
|
|
|
|
bool show_auto_info_ifn(StringView title, StringView info, AutoInfo mask, const Context& context)
|
|
{
|
|
if (not (context.options()["autoinfo"].get<AutoInfo>() & mask) or
|
|
not context.has_client())
|
|
return false;
|
|
|
|
context.client().info_show(title.str(), info.str(), {}, InfoStyle::Prompt);
|
|
return true;
|
|
}
|
|
|
|
void hide_auto_info_ifn(const Context& context, bool hide)
|
|
{
|
|
if (hide)
|
|
context.client().info_hide();
|
|
}
|
|
|
|
void scroll_window(Context& context, LineCount offset)
|
|
{
|
|
Window& window = context.window();
|
|
Buffer& buffer = context.buffer();
|
|
|
|
DisplayCoord win_pos = window.position();
|
|
DisplayCoord win_dim = window.dimensions();
|
|
|
|
const DisplayCoord max_offset{(win_dim.line - 1)/2, (win_dim.column - 1)/2};
|
|
const DisplayCoord scrolloff =
|
|
std::min(context.options()["scrolloff"].get<DisplayCoord>(), max_offset);
|
|
|
|
const LineCount line_count = buffer.line_count();
|
|
win_pos.line = clamp(win_pos.line + offset, 0_line, line_count-1);
|
|
|
|
SelectionList& selections = context.selections();
|
|
const BufferCoord cursor = selections.main().cursor();
|
|
|
|
auto line = clamp(cursor.line, win_pos.line + scrolloff.line,
|
|
win_pos.line + win_dim.line - 1 - scrolloff.line);
|
|
line = clamp(line, 0_line, line_count-1);
|
|
|
|
using std::min; using std::max;
|
|
// This is not exactly a clamp, and must be done in this order as
|
|
// byte_count_to could return line length
|
|
auto col = min(max(cursor.column, buffer[line].byte_count_to(win_pos.column)),
|
|
buffer[line].length()-1);
|
|
|
|
selections = SelectionList{buffer, BufferCoord{line, col}};
|
|
window.set_position(win_pos);
|
|
}
|
|
|
|
}
|