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      1 /*
      2  * Copyright (C) 2009 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 WebDataSourceImpl_h
     32 #define WebDataSourceImpl_h
     33 
     34 #include "DocumentLoader.h"
     35 #include "KURL.h"
     36 #include "WebDataSource.h"
     37 #include "WebPluginLoadObserver.h"
     38 #include "WrappedResourceRequest.h"
     39 #include "WrappedResourceResponse.h"
     40 #include <wtf/OwnPtr.h>
     41 #include <wtf/PassOwnPtr.h>
     42 #include <wtf/Vector.h>
     43 
     44 namespace WebKit {
     45 
     46 class WebPluginLoadObserver;
     47 
     48 class WebDataSourceImpl : public WebCore::DocumentLoader, public WebDataSource {
     49 public:
     50     static PassRefPtr<WebDataSourceImpl> create(const WebCore::ResourceRequest&,
     51                                                 const WebCore::SubstituteData&);
     52 
     53     static WebDataSourceImpl* fromDocumentLoader(WebCore::DocumentLoader* loader)
     54     {
     55         return static_cast<WebDataSourceImpl*>(loader);
     56     }
     57 
     58     // WebDataSource methods:
     59     virtual const WebURLRequest& originalRequest() const;
     60     virtual const WebURLRequest& request() const;
     61     virtual const WebURLResponse& response() const;
     62     virtual bool hasUnreachableURL() const;
     63     virtual WebURL unreachableURL() const;
     64     virtual void redirectChain(WebVector<WebURL>&) const;
     65     virtual WebString pageTitle() const;
     66     virtual WebNavigationType navigationType() const;
     67     virtual double triggeringEventTime() const;
     68     virtual ExtraData* extraData() const;
     69     virtual void setExtraData(ExtraData*);
     70     virtual WebApplicationCacheHost* applicationCacheHost();
     71     virtual void setDeferMainResourceDataLoad(bool);
     72 
     73     static WebNavigationType toWebNavigationType(WebCore::NavigationType type);
     74 
     75     bool hasRedirectChain() const { return !m_redirectChain.isEmpty(); }
     76     const WebCore::KURL& endOfRedirectChain() const;
     77     void clearRedirectChain();
     78     void appendRedirect(const WebCore::KURL& url);
     79 
     80     PassOwnPtr<WebPluginLoadObserver> releasePluginLoadObserver() { return m_pluginLoadObserver.release(); }
     81     static void setNextPluginLoadObserver(PassOwnPtr<WebPluginLoadObserver>);
     82 
     83 private:
     84     WebDataSourceImpl(const WebCore::ResourceRequest&, const WebCore::SubstituteData&);
     85     ~WebDataSourceImpl();
     86 
     87     // Mutable because the const getters will magically sync these to the
     88     // latest version from WebKit.
     89     mutable WrappedResourceRequest m_originalRequestWrapper;
     90     mutable WrappedResourceRequest m_requestWrapper;
     91     mutable WrappedResourceResponse m_responseWrapper;
     92 
     93     // Lists all intermediate URLs that have redirected for the current provisional load.
     94     // See WebFrameLoaderClient::dispatchDidReceiveServerRedirectForProvisionalLoad for a
     95     // description of who modifies this when to keep it up to date.
     96     Vector<WebCore::KURL> m_redirectChain;
     97 
     98     OwnPtr<ExtraData> m_extraData;
     99     OwnPtr<WebPluginLoadObserver> m_pluginLoadObserver;
    100 
    101     static WebPluginLoadObserver* m_nextPluginLoadObserver;
    102 };
    103 
    104 } // namespace WebKit
    105 
    106 #endif  // WebDataSourceImpl_h
    107