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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, 2005, 2006, 2007 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 "core/dom/KeyboardEvent.h"
#include "core/dom/EventNames.h"
#include "core/platform/PlatformKeyboardEvent.h"
#include "core/platform/WindowsKeyboardCodes.h"
namespace WebCore {
static inline const AtomicString& 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;
}
}
KeyboardEventInit::KeyboardEventInit()
: location(0)
, ctrlKey(false)
, altKey(false)
, shiftKey(false)
, metaKey(false)
{
}
KeyboardEvent::KeyboardEvent()
: m_location(DOM_KEY_LOCATION_STANDARD)
, m_altGraphKey(false)
{
ScriptWrappable::init(this);
}
KeyboardEvent::KeyboardEvent(const PlatformKeyboardEvent& key, AbstractView* view)
: UIEventWithKeyState(eventTypeForKeyboardEventType(key.type()),
true, true, view, 0, key.ctrlKey(), key.altKey(), key.shiftKey(), key.metaKey())
, m_keyEvent(adoptPtr(new PlatformKeyboardEvent(key)))
, m_keyIdentifier(key.keyIdentifier())
, m_location(keyLocationCode(key))
, m_altGraphKey(false)
{
ScriptWrappable::init(this);
}
KeyboardEvent::KeyboardEvent(const AtomicString& eventType, const KeyboardEventInit& initializer)
: UIEventWithKeyState(eventType, initializer.bubbles, initializer.cancelable, initializer.view, initializer.detail, initializer.ctrlKey, initializer.altKey, initializer.shiftKey, initializer.metaKey)
, m_keyIdentifier(initializer.keyIdentifier)
, m_location(initializer.location)
, m_altGraphKey(false)
{
ScriptWrappable::init(this);
}
KeyboardEvent::KeyboardEvent(const AtomicString& eventType, bool canBubble, bool cancelable, AbstractView *view,
const String &keyIdentifier, unsigned location,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool altGraphKey)
: UIEventWithKeyState(eventType, canBubble, cancelable, view, 0, ctrlKey, altKey, shiftKey, metaKey)
, m_keyIdentifier(keyIdentifier)
, m_location(location)
, m_altGraphKey(altGraphKey)
{
ScriptWrappable::init(this);
}
KeyboardEvent::~KeyboardEvent()
{
}
void KeyboardEvent::initKeyboardEvent(const AtomicString& type, bool canBubble, bool cancelable, AbstractView* view,
const String &keyIdentifier, unsigned location,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool altGraphKey)
{
if (dispatched())
return;
initUIEvent(type, canBubble, cancelable, view, 0);
m_keyIdentifier = keyIdentifier;
m_location = location;
m_ctrlKey = ctrlKey;
m_shiftKey = shiftKey;
m_altKey = altKey;
m_metaKey = metaKey;
m_altGraphKey = altGraphKey;
}
bool KeyboardEvent::getModifierState(const String& keyIdentifier) const
{
// FIXME: The following keyIdentifiers are not supported yet (crbug.com/265458):
// "AltGraph", "CapsLock", "Fn", "NumLock", "ScrollLock", "SymbolLock", "OS".
if (keyIdentifier == "Control")
return ctrlKey();
if (keyIdentifier == "Shift")
return shiftKey();
if (keyIdentifier == "Alt")
return altKey();
if (keyIdentifier == "Meta")
return metaKey();
return false;
}
int KeyboardEvent::keyCode() const
{
// 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_keyEvent)
return 0;
if (type() == eventNames().keydownEvent || type() == eventNames().keyupEvent)
return windowsVirtualKeyCodeWithoutLocation(m_keyEvent->windowsVirtualKeyCode());
return charCode();
}
int KeyboardEvent::charCode() const
{
// IE: not supported
// Firefox: 0 for keydown/keyup events, character code for keypress
// We match Firefox
if (!m_keyEvent || (type() != eventNames().keypressEvent))
return 0;
String text = m_keyEvent->text();
return static_cast<int>(text.characterStartingAt(0));
}
const AtomicString& KeyboardEvent::interfaceName() const
{
return eventNames().interfaceForKeyboardEvent;
}
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.
return keyCode();
}
KeyboardEvent* findKeyboardEvent(Event* event)
{
for (Event* e = event; e; e = e->underlyingEvent()) {
if (e->isKeyboardEvent())
return toKeyboardEvent(e);
}
return 0;
}
PassRefPtr<KeyboardEventDispatchMediator> KeyboardEventDispatchMediator::create(PassRefPtr<KeyboardEvent> event)
{
return adoptRef(new KeyboardEventDispatchMediator(event));
}
KeyboardEventDispatchMediator::KeyboardEventDispatchMediator(PassRefPtr<KeyboardEvent> event)
: EventDispatchMediator(event)
{
}
bool KeyboardEventDispatchMediator::dispatchEvent(EventDispatcher* dispatcher) const
{
// Make sure not to return true if we already took default action while handling the event.
return EventDispatchMediator::dispatchEvent(dispatcher) && !event()->defaultHandled();
}
} // namespace WebCore
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