1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * (C) 2000 Simon Hausmann <hausmann (at) kde.org> 5 * Copyright (C) 2004, 2006, 2008, 2009 Apple Inc. All rights reserved. 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public License 18 * along with this library; see the file COPYING.LIB. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 * 22 */ 23 24 #ifndef HTMLFrameElementBase_h 25 #define HTMLFrameElementBase_h 26 27 #include "HTMLFrameOwnerElement.h" 28 #include "ScrollTypes.h" 29 30 namespace WebCore { 31 32 class HTMLFrameElementBase : public HTMLFrameOwnerElement { 33 public: 34 KURL location() const; 35 void setLocation(const String&); 36 37 virtual ScrollbarMode scrollingMode() const { return m_scrolling; } 38 39 int marginWidth() const { return m_marginWidth; } 40 int marginHeight() const { return m_marginHeight; } 41 42 int width() const; 43 int height() const; 44 45 void setRemainsAliveOnRemovalFromTree(bool); 46 #if ENABLE(FULLSCREEN_API) 47 virtual bool allowFullScreen() const; 48 #endif 49 50 protected: 51 HTMLFrameElementBase(const QualifiedName&, Document*); 52 53 bool isURLAllowed() const; 54 55 virtual void parseMappedAttribute(Attribute*); 56 virtual void insertedIntoDocument(); 57 virtual void attach(); 58 59 private: 60 virtual bool supportsFocus() const; 61 virtual void setFocus(bool); 62 63 virtual bool isURLAttribute(Attribute*) const; 64 65 virtual void willRemove(); 66 void checkInDocumentTimerFired(Timer<HTMLFrameElementBase>*); 67 void updateOnReparenting(); 68 69 bool viewSourceMode() const { return m_viewSource; } 70 71 void setNameAndOpenURL(); 72 void openURL(bool lockHistory = true, bool lockBackForwardList = true); 73 74 AtomicString m_URL; 75 AtomicString m_frameName; 76 77 ScrollbarMode m_scrolling; 78 79 int m_marginWidth; 80 int m_marginHeight; 81 82 // This is a performance optimization some call "magic iframe" which avoids 83 // tearing down the frame hierarchy when a web page calls adoptNode on a 84 // frame owning element but does not immediately insert it into the new 85 // document before JavaScript yields to WebCore. If the element is not yet 86 // in a document by the time this timer fires, the frame hierarchy teardown 87 // will continue. This can also be seen as implementation of: 88 // "Removing an iframe from a Document does not cause its browsing context 89 // to be discarded. Indeed, an iframe's browsing context can survive its 90 // original parent Document if its iframe is moved to another Document." 91 // From HTML5: http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#the-iframe-element 92 Timer<HTMLFrameElementBase> m_checkInDocumentTimer; 93 94 bool m_viewSource; 95 bool m_remainsAliveOnRemovalFromTree; 96 }; 97 98 } // namespace WebCore 99 100 #endif // HTMLFrameElementBase_h 101
