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/*
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
* Copyright (C) 2003-2018 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "KeyboardEvent.h"
#include "DOMWindow.h"
#include "Document.h"
#include "Editor.h"
#include "EventHandler.h"
#include "EventNames.h"
#include "Frame.h"
#include "PlatformKeyboardEvent.h"
#include "WindowsKeyboardCodes.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(KeyboardEvent);
static inline const AtomString& eventTypeForKeyboardEventType(PlatformEvent::Type type)
{
switch (type) {
case PlatformEvent::KeyUp:
return eventNames().keyupEvent;
case PlatformEvent::RawKeyDown:
return eventNames().keydownEvent;
case PlatformEvent::Char:
return eventNames().keypressEvent;
case PlatformEvent::KeyDown:
// The caller should disambiguate the combined event into RawKeyDown or Char events.
break;
default:
break;
}
ASSERT_NOT_REACHED();
return eventNames().keydownEvent;
}
static inline int windowsVirtualKeyCodeWithoutLocation(int keycode)
{
switch (keycode) {
case VK_LCONTROL:
case VK_RCONTROL:
return VK_CONTROL;
case VK_LSHIFT:
case VK_RSHIFT:
return VK_SHIFT;
case VK_LMENU:
case VK_RMENU:
return VK_MENU;
default:
return keycode;
}
}
static inline KeyboardEvent::KeyLocationCode keyLocationCode(const PlatformKeyboardEvent& key)
{
if (key.isKeypad())
return KeyboardEvent::DOM_KEY_LOCATION_NUMPAD;
switch (key.windowsVirtualKeyCode()) {
case VK_LCONTROL:
case VK_LSHIFT:
case VK_LMENU:
case VK_LWIN:
return KeyboardEvent::DOM_KEY_LOCATION_LEFT;
case VK_RCONTROL:
case VK_RSHIFT:
case VK_RMENU:
case VK_RWIN:
return KeyboardEvent::DOM_KEY_LOCATION_RIGHT;
default:
return KeyboardEvent::DOM_KEY_LOCATION_STANDARD;
}
}
inline KeyboardEvent::KeyboardEvent() = default;
inline KeyboardEvent::KeyboardEvent(const PlatformKeyboardEvent& key, RefPtr<WindowProxy>&& view)
: UIEventWithKeyState(eventTypeForKeyboardEventType(key.type()), CanBubble::Yes, IsCancelable::Yes, IsComposed::Yes,
key.timestamp().approximateMonotonicTime(), view.copyRef(), 0, key.modifiers(), IsTrusted::Yes)
, m_underlyingPlatformEvent(makeUnique<PlatformKeyboardEvent>(key))
#if ENABLE(KEYBOARD_KEY_ATTRIBUTE)
, m_key(key.key())
#endif
#if ENABLE(KEYBOARD_CODE_ATTRIBUTE)
, m_code(key.code())
#endif
, m_keyIdentifier(key.keyIdentifier())
, m_location(keyLocationCode(key))
, m_repeat(key.isAutoRepeat())
, m_isComposing(view && is<DOMWindow>(view->window()) && downcast<DOMWindow>(*view->window()).frame() && downcast<DOMWindow>(*view->window()).frame()->editor().hasComposition())
#if USE(APPKIT) || USE(UIKIT_KEYBOARD_ADDITIONS)
, m_handledByInputMethod(key.handledByInputMethod())
#endif
#if USE(APPKIT)
, m_keypressCommands(key.commands())
#endif
{
}
inline KeyboardEvent::KeyboardEvent(const AtomString& eventType, const Init& initializer)
: UIEventWithKeyState(eventType, initializer)
#if ENABLE(KEYBOARD_KEY_ATTRIBUTE)
, m_key(initializer.key)
#endif
#if ENABLE(KEYBOARD_CODE_ATTRIBUTE)
, m_code(initializer.code)
#endif
, m_keyIdentifier(initializer.keyIdentifier)
, m_location(initializer.keyLocation ? *initializer.keyLocation : initializer.location)
, m_repeat(initializer.repeat)
, m_isComposing(initializer.isComposing)
, m_charCode(initializer.charCode)
, m_keyCode(initializer.keyCode)
, m_which(initializer.which)
{
}
KeyboardEvent::~KeyboardEvent() = default;
Ref<KeyboardEvent> KeyboardEvent::create(const PlatformKeyboardEvent& platformEvent, RefPtr<WindowProxy>&& view)
{
return adoptRef(*new KeyboardEvent(platformEvent, WTFMove(view)));
}
Ref<KeyboardEvent> KeyboardEvent::createForBindings()
{
return adoptRef(*new KeyboardEvent);
}
Ref<KeyboardEvent> KeyboardEvent::create(const AtomString& type, const Init& initializer)
{
return adoptRef(*new KeyboardEvent(type, initializer));
}
void KeyboardEvent::initKeyboardEvent(const AtomString& type, bool canBubble, bool cancelable, RefPtr<WindowProxy>&& view,
const String& keyIdentifier, unsigned location, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool altGraphKey)
{
if (isBeingDispatched())
return;
initUIEvent(type, canBubble, cancelable, WTFMove(view), 0);
m_keyIdentifier = keyIdentifier;
m_location = location;
setModifierKeys(ctrlKey, altKey, shiftKey, metaKey, altGraphKey);
m_charCode = WTF::nullopt;
m_isComposing = false;
m_keyCode = WTF::nullopt;
m_repeat = false;
m_underlyingPlatformEvent = nullptr;
m_which = WTF::nullopt;
#if ENABLE(KEYBOARD_CODE_ATTRIBUTE)
m_code = { };
#endif
#if ENABLE(KEYBOARD_KEY_ATTRIBUTE)
m_key = { };
#endif
#if PLATFORM(COCOA)
m_handledByInputMethod = false;
m_keypressCommands = { };
#endif
}
int KeyboardEvent::keyCode() const
{
if (m_keyCode)
return m_keyCode.value();
// IE: virtual key code for keyup/keydown, character code for keypress
// Firefox: virtual key code for keyup/keydown, zero for keypress
// We match IE.
if (!m_underlyingPlatformEvent)
return 0;
if (type() == eventNames().keydownEvent || type() == eventNames().keyupEvent)
return windowsVirtualKeyCodeWithoutLocation(m_underlyingPlatformEvent->windowsVirtualKeyCode());
return charCode();
}
int KeyboardEvent::charCode() const
{
if (m_charCode)
return m_charCode.value();
// IE: not supported
// Firefox: 0 for keydown/keyup events, character code for keypress
// We match Firefox, unless in backward compatibility mode, where we always return the character code.
bool backwardCompatibilityMode = false;
auto* window = view() ? view()->window() : nullptr;
if (is<DOMWindow>(window) && downcast<DOMWindow>(*window).frame())
backwardCompatibilityMode = downcast<DOMWindow>(*window).frame()->eventHandler().needsKeyboardEventDisambiguationQuirks();
if (!m_underlyingPlatformEvent || (type() != eventNames().keypressEvent && !backwardCompatibilityMode))
return 0;
return m_underlyingPlatformEvent->text().characterStartingAt(0);
}
EventInterface KeyboardEvent::eventInterface() const
{
return KeyboardEventInterfaceType;
}
bool KeyboardEvent::isKeyboardEvent() const
{
return true;
}
int KeyboardEvent::which() const
{
// Netscape's "which" returns a virtual key code for keydown and keyup, and a character code for keypress.
// That's exactly what IE's "keyCode" returns. So they are the same for keyboard events.
if (m_which)
return m_which.value();
return keyCode();
}
} // namespace WebCore