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LibLine: Rename LineEditor.{cpp,h} => Editor.{cpp,h}
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5 changed files with 4 additions and 5 deletions
132
Libraries/LibLine/Editor.h
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132
Libraries/LibLine/Editor.h
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/BinarySearch.h>
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#include <AK/FileSystemPath.h>
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#include <AK/Function.h>
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#include <AK/HashMap.h>
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#include <AK/NonnullOwnPtr.h>
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#include <AK/QuickSort.h>
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#include <AK/String.h>
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#include <AK/Vector.h>
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#include <LibCore/DirIterator.h>
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#include <sys/stat.h>
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#include <termios.h>
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namespace Line {
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class Editor;
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struct KeyCallback {
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KeyCallback(Function<bool(Editor&)> cb)
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: callback(move(cb))
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{
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}
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Function<bool(Editor&)> callback;
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};
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class Editor {
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public:
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Editor();
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~Editor();
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void initialize()
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{
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ASSERT(!m_initialized);
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struct termios termios;
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tcgetattr(0, &termios);
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m_default_termios = termios; // grab a copy to restore
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// Because we use our own line discipline which includes echoing,
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// we disable ICANON and ECHO.
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termios.c_lflag &= ~(ECHO | ICANON);
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tcsetattr(0, TCSANOW, &termios);
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m_termios = termios;
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m_initialized = true;
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}
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String get_line(const String& prompt);
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void add_to_history(const String&);
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const Vector<String>& history() const { return m_history; }
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void on_char_input(char ch, Function<bool(Editor&)> callback);
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Function<Vector<String>(const String&)> on_tab_complete_first_token = nullptr;
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Function<Vector<String>(const String&)> on_tab_complete_other_token = nullptr;
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// FIXME: we will have to kindly ask our instantiators to set our signal handlers
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// since we can not do this cleanly ourselves (signal() limitation: cannot give member functions)
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void interrupted() { m_was_interrupted = true; }
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void resized() { m_was_resized = true; }
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size_t cursor() const { return m_cursor; }
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const Vector<char, 1024>& buffer() const { return m_buffer; }
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char buffer_at(size_t pos) const { return m_buffer.at(pos); }
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void clear_line();
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void insert(const String&);
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void insert(const char);
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void cut_mismatching_chars(String& completion, const String& other, size_t start_compare);
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const struct termios& termios() const { return m_termios; }
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const struct termios& default_termios() const { return m_default_termios; }
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private:
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void vt_save_cursor();
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void vt_restore_cursor();
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void vt_clear_to_end_of_line();
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Vector<char, 1024> m_buffer;
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size_t m_cursor { 0 };
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size_t m_times_tab_pressed { 0 };
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size_t m_num_columns { 0 };
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HashMap<char, NonnullOwnPtr<KeyCallback>> m_key_callbacks;
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// TODO: handle signals internally
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struct termios m_termios, m_default_termios;
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bool m_was_interrupted = false;
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bool m_was_resized = false;
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// FIXME: This should be something more take_first()-friendly.
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Vector<String> m_history;
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size_t m_history_cursor { 0 };
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size_t m_history_capacity { 100 };
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enum class InputState {
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Free,
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ExpectBracket,
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ExpectFinal,
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ExpectTerminator,
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};
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InputState m_state { InputState::Free };
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bool m_initialized = false;
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};
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}
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