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 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 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 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef ScriptRunner_h 27 #define ScriptRunner_h 28 29 #include "core/fetch/ResourcePtr.h" 30 #include "platform/Timer.h" 31 #include "platform/heap/Handle.h" 32 #include "wtf/HashMap.h" 33 #include "wtf/Noncopyable.h" 34 #include "wtf/PassOwnPtr.h" 35 #include "wtf/Vector.h" 36 37 namespace WebCore { 38 39 class ScriptResource; 40 class Document; 41 class PendingScript; 42 class ScriptLoader; 43 44 class ScriptRunner FINAL : public NoBaseWillBeGarbageCollectedFinalized<ScriptRunner> { 45 WTF_MAKE_NONCOPYABLE(ScriptRunner); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED; 46 public: create(Document * document)47 static PassOwnPtrWillBeRawPtr<ScriptRunner> create(Document* document) 48 { 49 return adoptPtrWillBeNoop(new ScriptRunner(document)); 50 } 51 ~ScriptRunner(); 52 53 enum ExecutionType { ASYNC_EXECUTION, IN_ORDER_EXECUTION }; 54 void queueScriptForExecution(ScriptLoader*, ResourcePtr<ScriptResource>, ExecutionType); hasPendingScripts()55 bool hasPendingScripts() const { return !m_scriptsToExecuteSoon.isEmpty() || !m_scriptsToExecuteInOrder.isEmpty() || !m_pendingAsyncScripts.isEmpty(); } 56 void suspend(); 57 void resume(); 58 void notifyScriptReady(ScriptLoader*, ExecutionType); 59 void notifyScriptLoadError(ScriptLoader*, ExecutionType); 60 61 void trace(Visitor*); 62 63 private: 64 explicit ScriptRunner(Document*); 65 66 void timerFired(Timer<ScriptRunner>*); 67 68 RawPtrWillBeMember<Document> m_document; 69 // FIXME: Oilpan: consider using heap vectors and hash map here; 70 // PendingScript does have a (trivial) destructor, however. 71 Vector<PendingScript> m_scriptsToExecuteInOrder; 72 Vector<PendingScript> m_scriptsToExecuteSoon; // http://www.whatwg.org/specs/web-apps/current-work/#set-of-scripts-that-will-execute-as-soon-as-possible 73 HashMap<ScriptLoader*, PendingScript> m_pendingAsyncScripts; 74 Timer<ScriptRunner> m_timer; 75 }; 76 77 } 78 79 #endif 80