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/*
* Copyright (C) 2012 Google Inc. 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "config.h"
#include "PointerLockController.h"
#include "Chrome.h"
#include "ChromeClient.h"
#include "Element.h"
#include "Event.h"
#include "Page.h"
#include "PlatformMouseEvent.h"
#include "VoidCallback.h"
#if ENABLE(POINTER_LOCK)
namespace WebCore {
PointerLockController::PointerLockController(Page* page)
: m_page(page)
{
}
PassOwnPtr<PointerLockController> PointerLockController::create(Page* page)
{
return adoptPtr(new PointerLockController(page));
}
void PointerLockController::requestPointerLock(Element* target)
{
if (!target || !target->inDocument() || m_documentOfRemovedElementWhileWaitingForUnlock) {
enqueueEvent(eventNames().webkitpointerlockerrorEvent, target);
return;
}
if (target->document()->isSandboxed(SandboxPointerLock)) {
// FIXME: This message should be moved off the console once a solution to https://bugs.webkit.org/show_bug.cgi?id=103274 exists.
target->document()->addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Blocked pointer lock on an element because the element's frame is sandboxed and the 'allow-pointer-lock' permission is not set.");
enqueueEvent(eventNames().webkitpointerlockerrorEvent, target);
return;
}
if (m_element) {
if (m_element->document() != target->document()) {
enqueueEvent(eventNames().webkitpointerlockerrorEvent, target);
return;
}
enqueueEvent(eventNames().webkitpointerlockchangeEvent, target);
m_element = target;
} else if (m_page->chrome()->client()->requestPointerLock()) {
m_lockPending = true;
m_element = target;
} else {
enqueueEvent(eventNames().webkitpointerlockerrorEvent, target);
}
}
void PointerLockController::requestPointerUnlock()
{
return m_page->chrome()->client()->requestPointerUnlock();
}
void PointerLockController::elementRemoved(Element* element)
{
if (m_element == element) {
m_documentOfRemovedElementWhileWaitingForUnlock = m_element->document();
// Set element null immediately to block any future interaction with it
// including mouse events received before the unlock completes.
clearElement();
requestPointerUnlock();
}
}
void PointerLockController::documentDetached(Document* document)
{
if (m_element && m_element->document() == document) {
clearElement();
requestPointerUnlock();
}
}
bool PointerLockController::lockPending() const
{
return m_lockPending;
}
Element* PointerLockController::element() const
{
return m_element.get();
}
void PointerLockController::didAcquirePointerLock()
{
enqueueEvent(eventNames().webkitpointerlockchangeEvent, m_element.get());
m_lockPending = false;
}
void PointerLockController::didNotAcquirePointerLock()
{
enqueueEvent(eventNames().webkitpointerlockerrorEvent, m_element.get());
clearElement();
}
void PointerLockController::didLosePointerLock()
{
enqueueEvent(eventNames().webkitpointerlockchangeEvent, m_element ? m_element->document() : m_documentOfRemovedElementWhileWaitingForUnlock.get());
clearElement();
m_documentOfRemovedElementWhileWaitingForUnlock = 0;
}
void PointerLockController::dispatchLockedMouseEvent(const PlatformMouseEvent& event, const AtomicString& eventType)
{
if (!m_element || !m_element->document()->frame())
return;
m_element->dispatchMouseEvent(event, eventType, event.clickCount());
// Create click events
if (eventType == eventNames().mouseupEvent)
m_element->dispatchMouseEvent(event, eventNames().clickEvent, event.clickCount());
}
void PointerLockController::clearElement()
{
m_lockPending = false;
m_element = 0;
}
void PointerLockController::enqueueEvent(const AtomicString& type, Element* element)
{
if (element)
enqueueEvent(type, element->document());
}
void PointerLockController::enqueueEvent(const AtomicString& type, Document* document)
{
if (document)
document->enqueueDocumentEvent(Event::create(type, true, false));
}
} // namespace WebCore
#endif // ENABLE(POINTER_LOCK)