diff options
Diffstat (limited to 'Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.cpp')
-rw-r--r-- | Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.cpp | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.cpp b/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.cpp new file mode 100644 index 0000000000..0e00d17362 --- /dev/null +++ b/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.cpp @@ -0,0 +1,110 @@ +/* + * Copyright (c) 2021, Andreas Kling <kling@serenityos.org> + * + * SPDX-License-Identifier: BSD-2-Clause + */ + +#include <AK/CharacterTypes.h> +#include <LibWeb/UIEvents/KeyboardEvent.h> + +namespace Web::UIEvents { + +// https://www.w3.org/TR/uievents/#determine-keydown-keyup-keyCode +static unsigned long determine_key_code(KeyCode platform_key, u32 code_point) +{ + // If input key when pressed without modifiers would insert a numerical character (0-9), return the ASCII code of that numerical character. + if (is_ascii_digit(code_point)) + return code_point; + + // If input key when pressed without modifiers would insert a lower case character in the a-z alphabetical range, return the ASCII code of the upper case equivalent. + if (is_ascii_lower_alpha(code_point)) + return to_ascii_uppercase(code_point); + + // If the keyโs function, as determined in an implementation-specific way, corresponds to one of the keys in the ยง8.3.3 Fixed virtual key codes table, return the corresponding key code. + // https://www.w3.org/TR/uievents/#fixed-virtual-key-codes + switch (platform_key) { + case KeyCode::Key_Backspace: + return 8; + case KeyCode::Key_Tab: + return 9; + case KeyCode::Key_Return: + return 13; + case KeyCode::Key_Shift: + return 16; + case KeyCode::Key_Control: + return 17; + case KeyCode::Key_Alt: + return 18; + case KeyCode::Key_CapsLock: + return 20; + case KeyCode::Key_Escape: + return 27; + case KeyCode::Key_Space: + return 32; + case KeyCode::Key_PageUp: + return 33; + case KeyCode::Key_PageDown: + return 34; + case KeyCode::Key_End: + return 35; + case KeyCode::Key_Home: + return 36; + case KeyCode::Key_Left: + return 37; + case KeyCode::Key_Up: + return 38; + case KeyCode::Key_Right: + return 39; + case KeyCode::Key_Down: + return 40; + default: + break; + } + + // Return the virtual key code from the operating system. + return platform_key; +} + +NonnullRefPtr<KeyboardEvent> KeyboardEvent::create_from_platform_event(FlyString event_name, KeyCode platform_key, unsigned modifiers, u32 code_point) +{ + // FIXME: Figure out what these should actually contain. + String event_key = key_code_to_string(platform_key); + String event_code = "FIXME"; + + auto key_code = determine_key_code(platform_key, code_point); + return KeyboardEvent::create(move(event_name), move(event_key), move(event_code), 0, modifiers & Mod_Ctrl, modifiers & Mod_Shift, modifiers & Mod_Alt, false, false, false, key_code, code_point); +} + +KeyboardEvent::KeyboardEvent(FlyString event_name, String key, String code, unsigned long location, bool ctrl_key, bool shift_key, bool alt_key, bool meta_key, bool repeat, bool is_composing, unsigned long key_code, unsigned long char_code) + : UIEvent(move(event_name)) + , m_key(move(key)) + , m_code(move(code)) + , m_location(location) + , m_ctrl_key(ctrl_key) + , m_shift_key(shift_key) + , m_alt_key(alt_key) + , m_meta_key(meta_key) + , m_repeat(repeat) + , m_is_composing(is_composing) + , m_key_code(key_code) + , m_char_code(char_code) +{ +} + +KeyboardEvent::~KeyboardEvent() +{ +} + +bool KeyboardEvent::get_modifier_state(String const& key_arg) +{ + if (key_arg == "Alt") + return m_alt_key; + if (key_arg == "Control") + return m_ctrl_key; + if (key_arg == "Shift") + return m_shift_key; + if (key_arg == "Meta") + return m_meta_key; + return false; +} +} |