Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 Google Inc. All Rights Reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * 1. Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer in the |
| 11 | * documentation and/or other materials provided with the distribution. |
| 12 | * |
| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| 14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| 17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
Ben Murdoch | 02772c6 | 2013-07-26 10:21:05 +0100 | [diff] [blame] | 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 24 | * |
| 25 | */ |
| 26 | |
| 27 | #ifndef DocumentEventQueue_h |
| 28 | #define DocumentEventQueue_h |
| 29 | |
| 30 | #include "core/dom/EventQueue.h" |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 31 | #include "wtf/Forward.h" |
| 32 | #include "wtf/HashSet.h" |
| 33 | #include "wtf/ListHashSet.h" |
| 34 | #include "wtf/OwnPtr.h" |
| 35 | #include "wtf/RefCounted.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 36 | |
| 37 | namespace WebCore { |
| 38 | |
| 39 | class Event; |
| 40 | class DocumentEventQueueTimer; |
| 41 | class Node; |
| 42 | class ScriptExecutionContext; |
| 43 | |
| 44 | class DocumentEventQueue : public RefCounted<DocumentEventQueue>, public EventQueue { |
| 45 | public: |
| 46 | enum ScrollEventTargetType { |
| 47 | ScrollEventDocumentTarget, |
| 48 | ScrollEventElementTarget |
| 49 | }; |
| 50 | |
| 51 | static PassRefPtr<DocumentEventQueue> create(ScriptExecutionContext*); |
| 52 | virtual ~DocumentEventQueue(); |
| 53 | |
| 54 | // EventQueue |
| 55 | virtual bool enqueueEvent(PassRefPtr<Event>) OVERRIDE; |
| 56 | virtual bool cancelEvent(Event*) OVERRIDE; |
| 57 | virtual void close() OVERRIDE; |
| 58 | |
| 59 | void enqueueOrDispatchScrollEvent(PassRefPtr<Node>, ScrollEventTargetType); |
| 60 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 61 | private: |
| 62 | explicit DocumentEventQueue(ScriptExecutionContext*); |
| 63 | |
| 64 | void pendingEventTimerFired(); |
| 65 | void dispatchEvent(PassRefPtr<Event>); |
| 66 | |
| 67 | OwnPtr<DocumentEventQueueTimer> m_pendingEventTimer; |
| 68 | ListHashSet<RefPtr<Event>, 16> m_queuedEvents; |
| 69 | HashSet<Node*> m_nodesWithQueuedScrollEvents; |
| 70 | bool m_isClosed; |
| 71 | |
Ben Murdoch | 02772c6 | 2013-07-26 10:21:05 +0100 | [diff] [blame] | 72 | friend class DocumentEventQueueTimer; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 73 | }; |
| 74 | |
| 75 | } |
| 76 | |
| 77 | #endif // DocumentEventQueue_h |