1 /* 2 * Copyright (C) 2013 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef HTMLImportChild_h 32 #define HTMLImportChild_h 33 34 #include "core/html/imports/HTMLImport.h" 35 #include "platform/heap/Handle.h" 36 #include "platform/weborigin/KURL.h" 37 #include "wtf/Vector.h" 38 #include "wtf/WeakPtr.h" 39 40 namespace WebCore { 41 42 class CustomElementMicrotaskImportStep; 43 class HTMLImportLoader; 44 class HTMLImportChildClient; 45 class HTMLLinkElement; 46 47 // 48 // An import tree node subclas to encapsulate imported document 49 // lifecycle. This class is owned by HTMLImportsController. The actual loading 50 // is done by HTMLImportLoader, which can be shared among multiple 51 // HTMLImportChild of same link URL. 52 // 53 class HTMLImportChild FINAL : public HTMLImport { 54 public: 55 HTMLImportChild(const KURL&, HTMLImportLoader*, SyncMode); 56 virtual ~HTMLImportChild(); 57 58 HTMLLinkElement* link() const; 59 const KURL& url() const { return m_url; } 60 61 void ownerInserted(); 62 void didShareLoader(); 63 void didStartLoading(); 64 #if !ENABLE(OILPAN) 65 void importDestroyed(); 66 WeakPtr<HTMLImportChild> weakPtr() { return m_weakFactory.createWeakPtr(); } 67 #endif 68 69 // HTMLImport 70 virtual Document* document() const OVERRIDE; 71 virtual bool isDone() const OVERRIDE; 72 virtual HTMLImportLoader* loader() const OVERRIDE; 73 virtual void stateWillChange() OVERRIDE; 74 virtual void stateDidChange() OVERRIDE; 75 virtual void trace(Visitor*) OVERRIDE; 76 77 #if !defined(NDEBUG) 78 virtual void showThis() OVERRIDE; 79 #endif 80 81 void setClient(HTMLImportChildClient*); 82 #if !ENABLE(OILPAN) 83 void clearClient(); 84 #endif 85 86 void didFinishLoading(); 87 void didFinishUpgradingCustomElements(); 88 void normalize(); 89 90 private: 91 void didFinish(); 92 void shareLoader(); 93 void createCustomElementMicrotaskStepIfNeeded(); 94 95 KURL m_url; 96 WeakPtrWillBeWeakMember<CustomElementMicrotaskImportStep> m_customElementMicrotaskStep; 97 #if !ENABLE(OILPAN) 98 WeakPtrFactory<HTMLImportChild> m_weakFactory; 99 #endif 100 RawPtrWillBeMember<HTMLImportLoader> m_loader; 101 RawPtrWillBeMember<HTMLImportChildClient> m_client; 102 }; 103 104 inline HTMLImportChild* toHTMLImportChild(HTMLImport* import) 105 { 106 ASSERT(!import || !import->isRoot()); 107 return static_cast<HTMLImportChild*>(import); 108 } 109 110 } // namespace WebCore 111 112 #endif // HTMLImportChild_h 113