Home | History | Annotate | Download | only in loader
      1 /*
      2  * Copyright (C) 2006, 2007, 2008, 2009, 2011 Apple Inc. All rights reserved.
      3  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
      4  * Copyright (C) Research In Motion Limited 2009. All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  *
     10  * 1.  Redistributions of source code must retain the above copyright
     11  *     notice, this list of conditions and the following disclaimer.
     12  * 2.  Redistributions in binary form must reproduce the above copyright
     13  *     notice, this list of conditions and the following disclaimer in the
     14  *     documentation and/or other materials provided with the distribution.
     15  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     16  *     its contributors may be used to endorse or promote products derived
     17  *     from this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     20  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     22  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     26  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef SubframeLoader_h
     32 #define SubframeLoader_h
     33 
     34 #include "FrameLoaderTypes.h"
     35 #include "PlatformString.h"
     36 #include <wtf/Forward.h>
     37 #include <wtf/HashMap.h>
     38 #include <wtf/Noncopyable.h>
     39 #include <wtf/Vector.h>
     40 
     41 namespace WebCore {
     42 
     43 class Document;
     44 class Frame;
     45 class FrameLoaderClient;
     46 class HTMLAppletElement;
     47 class HTMLFrameOwnerElement;
     48 class HTMLPlugInImageElement;
     49 class IntSize;
     50 class KURL;
     51 #if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
     52 class Node;
     53 #endif
     54 class Widget;
     55 
     56 // This is a slight misnomer. It handles the higher level logic of loading both subframes and plugins.
     57 class SubframeLoader {
     58     WTF_MAKE_NONCOPYABLE(SubframeLoader);
     59 public:
     60     SubframeLoader(Frame*);
     61 
     62     void clear();
     63 
     64     bool requestFrame(HTMLFrameOwnerElement*, const String& url, const AtomicString& frameName, bool lockHistory = true, bool lockBackForwardList = true);
     65     bool requestObject(HTMLPlugInImageElement*, const String& url, const AtomicString& frameName,
     66         const String& serviceType, const Vector<String>& paramNames, const Vector<String>& paramValues);
     67 
     68 #if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
     69     // FIXME: This should take Element* instead of Node*, or better yet the
     70     // specific type of Element which this code depends on.
     71     PassRefPtr<Widget> loadMediaPlayerProxyPlugin(Node*, const KURL&, const Vector<String>& paramNames, const Vector<String>& paramValues);
     72 #endif
     73 
     74     PassRefPtr<Widget> createJavaAppletWidget(const IntSize&, HTMLAppletElement*, const HashMap<String, String>& args);
     75 
     76     bool allowPlugins(ReasonForCallingAllowPlugins);
     77 
     78     bool containsPlugins() const { return m_containsPlugins; }
     79 
     80     bool resourceWillUsePlugin(const String& url, const String& mimeType, bool shouldPreferPlugInsForImages);
     81 
     82 private:
     83     bool requestPlugin(HTMLPlugInImageElement*, const KURL&, const String& serviceType, const Vector<String>& paramNames, const Vector<String>& paramValues, bool useFallback);
     84     Frame* loadOrRedirectSubframe(HTMLFrameOwnerElement*, const KURL&, const AtomicString& frameName, bool lockHistory, bool lockBackForwardList);
     85     Frame* loadSubframe(HTMLFrameOwnerElement*, const KURL&, const String& name, const String& referrer);
     86     bool loadPlugin(HTMLPlugInImageElement*, const KURL&, const String& mimeType,
     87         const Vector<String>& paramNames, const Vector<String>& paramValues, bool useFallback);
     88 
     89     bool shouldUsePlugin(const KURL&, const String& mimeType, bool shouldPreferPlugInsForImages, bool hasFallback, bool& useFallback);
     90 
     91     Document* document() const;
     92 
     93     bool m_containsPlugins;
     94     Frame* m_frame;
     95 
     96     KURL completeURL(const String&) const;
     97 };
     98 
     99 } // namespace WebCore
    100 
    101 #endif // SubframeLoader_h
    102