| /* |
| * Copyright (C) 2013 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: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER OR |
| * 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. |
| */ |
| |
| #ifndef TouchController_h |
| #define TouchController_h |
| |
| #include "core/dom/DocumentLifecycleObserver.h" |
| #include "core/events/Event.h" |
| #include "core/dom/Node.h" |
| #include "core/frame/DOMWindowLifecycleObserver.h" |
| #include "platform/Supplementable.h" |
| #include "wtf/HashSet.h" |
| |
| namespace WebCore { |
| |
| typedef HashCountedSet<Node*> TouchEventTargetSet; |
| |
| class Document; |
| class DOMWindow; |
| |
| class TouchController : public DocumentSupplement, public DOMWindowLifecycleObserver, public DocumentLifecycleObserver { |
| |
| public: |
| virtual ~TouchController(); |
| |
| static const char* supplementName(); |
| static TouchController* from(Document*); |
| |
| bool hasTouchEventHandlers() const { return m_touchEventTargets ? m_touchEventTargets->size() : false; } |
| |
| void didAddTouchEventHandler(Document*, Node*); |
| void didRemoveTouchEventHandler(Document*, Node*); |
| void didRemoveEventTargetNode(Document*, Node*); |
| |
| const TouchEventTargetSet* touchEventTargets() const { return m_touchEventTargets.get(); } |
| |
| // Inherited from DOMWindowLifecycleObserver |
| virtual void didAddEventListener(DOMWindow*, const AtomicString&) OVERRIDE; |
| virtual void didRemoveEventListener(DOMWindow*, const AtomicString&) OVERRIDE; |
| virtual void didRemoveAllEventListeners(DOMWindow*) OVERRIDE; |
| |
| // Inherited from DocumentLifecycleObserver |
| virtual void documentWasDetached() OVERRIDE; |
| virtual void documentBeingDestroyed() OVERRIDE; |
| |
| private: |
| explicit TouchController(Document*); |
| |
| OwnPtr<TouchEventTargetSet> m_touchEventTargets; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // TouchController_h |