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/*
* Copyright (c) 2020, Hüseyin Aslıtürk <asliturk@hotmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "CharacterMap.h"
#include <Kernel/Syscall.h>
#ifndef KERNEL
# include <LibKeyboard/CharacterMapFile.h>
#endif
namespace Keyboard {
CharacterMap::CharacterMap(const String& file_name)
{
#ifdef KERNEL
UNUSED_PARAM(file_name);
m_character_map_data = default_character_map;
#else
auto result = CharacterMapFile::load_from_file(file_name);
ASSERT(result.has_value());
m_character_map_data = result.value();
#endif
}
int CharacterMap::set_system_map()
{
Syscall::SC_setkeymap_params params { m_character_map_data.map, m_character_map_data.shift_map, m_character_map_data.alt_map, m_character_map_data.altgr_map };
return syscall(SC_setkeymap, ¶ms);
}
char CharacterMap::get_char(KeyEvent event)
{
auto modifiers = event.modifiers();
auto index = event.scancode & 0xFF; // Index is last byte of scan code.
auto caps_lock_on = event.caps_lock_on;
char character;
if (modifiers & Mod_Shift)
character = m_character_map_data.shift_map[index];
else if (modifiers & Mod_Alt)
character = m_character_map_data.alt_map[index];
else if (modifiers & Mod_AltGr)
character = m_character_map_data.altgr_map[index];
else
character = m_character_map_data.map[index];
if (caps_lock_on && (modifiers == 0 || modifiers == Mod_Shift)) {
if (character >= 'a' && character <= 'z')
character &= ~0x20;
else if (character >= 'A' && character <= 'Z')
character |= 0x20;
}
if (event.e0_prefix && event.key == Key_Slash) {
// If Key_Slash (scancode = 0x35) mapped to other form "/", we fix num pad key of "/" with this case.
character = '/';
}
return character;
}
void CharacterMap::set_character_map_data(CharacterMapData character_map_data)
{
m_character_map_data = character_map_data;
}
}
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