1 /* 2 * Copyright (C) 2008 Apple 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 PageGroup_h 27 #define PageGroup_h 28 29 #include "core/page/InjectedStyleSheet.h" 30 #include "platform/Supplementable.h" 31 #include "wtf/HashSet.h" 32 #include "wtf/Noncopyable.h" 33 #include "wtf/PassRefPtr.h" 34 #include "wtf/RefCounted.h" 35 36 namespace WebCore { 37 38 class Page; 39 40 // FIXME: This is really more of a "Settings Group" than a Page Group. 41 // It has nothing to do with Page. There is one shared PageGroup 42 // in the renderer process, which all normal Pages belong to. There are also 43 // additional private PageGroups for SVGImage, Inspector Overlay, etc. 44 45 // This really only exists to service InjectedStyleSheets at this point. 46 // InjectedStyleSheets could instead just use a global, and StyleEngine 47 // could be taught to look for InjectedStyleSheets when resolving style 48 // for normal frames. 49 class PageGroup : public Supplementable<PageGroup>, public RefCounted<PageGroup> { 50 WTF_MAKE_NONCOPYABLE(PageGroup); WTF_MAKE_FAST_ALLOCATED; 51 public: 52 ~PageGroup(); 53 create()54 static PassRefPtr<PageGroup> create() { return adoptRef(new PageGroup()); } 55 static PageGroup* sharedGroup(); 56 pages()57 const HashSet<Page*>& pages() const { return m_pages; } 58 59 void addPage(Page*); 60 void removePage(Page*); 61 62 void injectStyleSheet(const String& source, const Vector<String>& whitelist, StyleInjectionTarget); 63 void removeInjectedStyleSheets(); 64 injectedStyleSheets()65 const InjectedStyleSheetVector& injectedStyleSheets() const { return m_injectedStyleSheets; } 66 67 private: 68 PageGroup(); 69 70 void invalidatedInjectedStyleSheetCacheInAllFrames(); 71 72 HashSet<Page*> m_pages; 73 InjectedStyleSheetVector m_injectedStyleSheets; 74 }; 75 76 } // namespace WebCore 77 78 #endif // PageGroup_h 79