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 DummyPageHolder_h 32 #define DummyPageHolder_h 33 34 #include "core/loader/EmptyClients.h" 35 #include "core/page/Page.h" 36 #include "platform/geometry/IntSize.h" 37 #include "platform/heap/Handle.h" 38 #include "wtf/FastAllocBase.h" 39 #include "wtf/Noncopyable.h" 40 #include "wtf/OwnPtr.h" 41 #include "wtf/PassOwnPtr.h" 42 43 namespace WebCore { 44 45 class Document; 46 class LocalFrame; 47 class FrameView; 48 class IntSize; 49 50 // Creates a dummy Page, LocalFrame, and FrameView whose clients are all no-op. 51 // 52 // This class can be used when you write unit tests for components which do not work correctly without renderers. 53 // To make sure the renderers are created, you need to call |frameView().layout()| after you add nodes into 54 // |document()|. 55 // 56 // Since DummyPageHolder stores empty clients in it, it must outlive the Page, LocalFrame, FrameView and any other objects 57 // created by it. DummyPageHolder's destructor ensures this condition by checking remaining references to the LocalFrame. 58 59 class DummyPageHolder { 60 WTF_MAKE_NONCOPYABLE(DummyPageHolder); 61 WTF_MAKE_FAST_ALLOCATED; 62 public: 63 static PassOwnPtr<DummyPageHolder> create(const IntSize& initialViewSize = IntSize()); 64 ~DummyPageHolder(); 65 66 Page& page() const; 67 LocalFrame& frame() const; 68 FrameView& frameView() const; 69 Document& document() const; 70 71 private: 72 explicit DummyPageHolder(const IntSize& initialViewSize); 73 74 OwnPtrWillBePersistent<Page> m_page; 75 RefPtr<LocalFrame> m_frame; 76 77 Page::PageClients m_pageClients; 78 EmptyFrameLoaderClient m_frameLoaderClient; 79 }; 80 81 } // namespace WebCore 82 83 #endif // DummyPageHolder_h 84