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LibWeb: Add a basic KeyboardEvent and fire "keydown" events :^)

This commit is contained in:
Andreas Kling 2021-09-27 23:22:21 +02:00
parent 09153b8997
commit 554c344ffe
9 changed files with 221 additions and 4 deletions

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@ -15,6 +15,7 @@ namespace Web::UIEvents::EventNames {
#define ENUMERATE_UI_EVENTS \
__ENUMERATE_UI_EVENT(click) \
__ENUMERATE_UI_EVENT(keydown) \
__ENUMERATE_UI_EVENT(mousedown) \
__ENUMERATE_UI_EVENT(mouseenter) \
__ENUMERATE_UI_EVENT(mouseleave) \

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@ -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 keys function, as determined in an implementation-specific way, corresponds to one of the keys in the §8.3.3 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;
}
}

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@ -0,0 +1,62 @@
/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/TypeCasts.h>
#include <Kernel/API/KeyCode.h>
#include <LibWeb/UIEvents/UIEvent.h>
namespace Web::UIEvents {
// https://www.w3.org/TR/uievents/#interface-keyboardevent
class KeyboardEvent final : public UIEvent {
public:
using WrapperType = Bindings::KeyboardEventWrapper;
static NonnullRefPtr<KeyboardEvent> create(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)
{
return adopt_ref(*new KeyboardEvent(move(event_name), move(key), move(code), location, ctrl_key, shift_key, alt_key, meta_key, repeat, is_composing, key_code, char_code));
}
static NonnullRefPtr<KeyboardEvent> create_from_platform_event(FlyString event_name, KeyCode, unsigned modifiers, u32 code_point);
virtual ~KeyboardEvent() override;
unsigned long key_code() const { return m_key_code; }
unsigned long char_code() const { return m_char_code; }
String key() const { return m_key; }
String code() const { return m_code; }
unsigned long location() const { return m_location; }
bool ctrl_key() const { return m_ctrl_key; }
bool shift_key() const { return m_shift_key; }
bool alt_key() const { return m_alt_key; }
bool meta_key() const { return m_meta_key; }
bool repeat() const { return m_repeat; }
bool is_composing() const { return m_is_composing; }
bool get_modifier_state(String const& key_arg);
private:
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);
String m_key;
String m_code;
unsigned long m_location { 0 };
bool m_ctrl_key { false };
bool m_shift_key { false };
bool m_alt_key { false };
bool m_meta_key { false };
bool m_repeat { false };
bool m_is_composing { false };
unsigned long m_key_code { 0 };
unsigned long m_char_code { 0 };
};
}

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@ -0,0 +1,30 @@
[Exposed=Window]
interface KeyboardEvent : UIEvent {
// FIXME: Implement this.
// constructor(DOMString type, optional KeyboardEventInit eventInitDict = {});
// KeyLocationCode
const unsigned long DOM_KEY_LOCATION_STANDARD = 0x00;
const unsigned long DOM_KEY_LOCATION_LEFT = 0x01;
const unsigned long DOM_KEY_LOCATION_RIGHT = 0x02;
const unsigned long DOM_KEY_LOCATION_NUMPAD = 0x03;
readonly attribute DOMString key;
readonly attribute DOMString code;
readonly attribute unsigned long location;
readonly attribute boolean ctrlKey;
readonly attribute boolean shiftKey;
readonly attribute boolean altKey;
readonly attribute boolean metaKey;
readonly attribute boolean repeat;
readonly attribute boolean isComposing;
readonly attribute unsigned long charCode;
readonly attribute unsigned long keyCode;
boolean getModifierState(DOMString keyArg);
};

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@ -11,7 +11,7 @@
namespace Web::UIEvents {
class MouseEvent final : public UIEvents::UIEvent {
class MouseEvent final : public UIEvent {
public:
using WrapperType = Bindings::MouseEventWrapper;