136 lines
4.7 KiB
C++
136 lines
4.7 KiB
C++
/*
|
||
* 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 <AK/StringBuilder.h>
|
||
#include <Kernel/API/Syscall.h>
|
||
#ifndef KERNEL
|
||
# include <LibKeyboard/CharacterMapFile.h>
|
||
#endif
|
||
|
||
namespace Keyboard {
|
||
|
||
CharacterMap::CharacterMap(const String& map_name)
|
||
{
|
||
#ifdef KERNEL
|
||
m_character_map_data = default_character_map;
|
||
#else
|
||
auto result = CharacterMapFile::load_from_file(map_name);
|
||
ASSERT(result.has_value());
|
||
|
||
m_character_map_data = result.value();
|
||
#endif
|
||
m_character_map_name = map_name;
|
||
}
|
||
|
||
CharacterMap::CharacterMap(const String& map_name, const CharacterMapData& map_data)
|
||
: m_character_map_data(map_data)
|
||
, m_character_map_name(map_name)
|
||
{
|
||
}
|
||
|
||
#ifndef KERNEL
|
||
|
||
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, m_character_map_data.shift_altgr_map, { m_character_map_name.characters(), m_character_map_name.length() } };
|
||
return syscall(SC_setkeymap, ¶ms);
|
||
}
|
||
|
||
Result<CharacterMap, OSError> CharacterMap::fetch_system_map()
|
||
{
|
||
CharacterMapData map_data;
|
||
char keymap_name[50 + 1] = { 0 };
|
||
|
||
Syscall::SC_getkeymap_params params {
|
||
map_data.map, map_data.shift_map,
|
||
map_data.alt_map,
|
||
map_data.altgr_map,
|
||
map_data.shift_altgr_map,
|
||
{ keymap_name, sizeof(keymap_name) }
|
||
};
|
||
int rc = syscall(SC_getkeymap, ¶ms);
|
||
if (rc < 0) {
|
||
return OSError(-rc);
|
||
}
|
||
|
||
return CharacterMap { keymap_name, map_data };
|
||
}
|
||
|
||
#endif
|
||
|
||
u32 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;
|
||
|
||
u32 code_point;
|
||
if (modifiers & Mod_Alt)
|
||
code_point = m_character_map_data.alt_map[index];
|
||
else if ((modifiers & Mod_Shift) && (modifiers & Mod_AltGr))
|
||
code_point = m_character_map_data.shift_altgr_map[index];
|
||
else if (modifiers & Mod_Shift)
|
||
code_point = m_character_map_data.shift_map[index];
|
||
else if (modifiers & Mod_AltGr)
|
||
code_point = m_character_map_data.altgr_map[index];
|
||
else
|
||
code_point = m_character_map_data.map[index];
|
||
|
||
if (caps_lock_on && (modifiers == 0 || modifiers == Mod_Shift)) {
|
||
if (code_point >= 'a' && code_point <= 'z')
|
||
code_point &= ~0x20;
|
||
else if (code_point >= 'A' && code_point <= 'Z')
|
||
code_point |= 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.
|
||
code_point = '/';
|
||
} else if (event.e0_prefix && event.key != Key_Return) {
|
||
// Except for `keypad-/` and 'keypad-return', all e0 scan codes are not actually characters. i.e., `keypad-0` and
|
||
// `Insert` have the same scancode except for the prefix, but insert should not have a code_point.
|
||
code_point = 0;
|
||
}
|
||
|
||
return code_point;
|
||
}
|
||
|
||
void CharacterMap::set_character_map_data(CharacterMapData character_map_data)
|
||
{
|
||
m_character_map_data = character_map_data;
|
||
}
|
||
|
||
void CharacterMap::set_character_map_name(const String& character_map_name)
|
||
{
|
||
m_character_map_name = character_map_name;
|
||
}
|
||
|
||
const String CharacterMap::character_map_name()
|
||
{
|
||
return m_character_map_name;
|
||
}
|
||
}
|