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      1 /*
      2  * Copyright 2009, The Android Open Source Project
      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  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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 #include <config.h>
     27 #include <ResourceLoaderAndroid.h>
     28 
     29 #include "Frame.h"
     30 #include "FrameLoaderClientAndroid.h"
     31 #include "WebCoreFrameBridge.h"
     32 #include "WebCoreResourceLoader.h"
     33 #include "WebUrlLoader.h"
     34 #include "WebViewCore.h"
     35 
     36 using namespace android;
     37 
     38 namespace WebCore {
     39 
     40 PassRefPtr<ResourceLoaderAndroid> ResourceLoaderAndroid::start(
     41         ResourceHandle* handle, const ResourceRequest& request, FrameLoaderClient* client, bool isMainResource, bool isSync)
     42 {
     43     // Called on main thread
     44     FrameLoaderClientAndroid* clientAndroid = static_cast<FrameLoaderClientAndroid*>(client);
     45 #if USE(CHROME_NETWORK_STACK)
     46     WebViewCore* webViewCore = WebViewCore::getWebViewCore(clientAndroid->getFrame()->view());
     47     bool isMainFrame = !(clientAndroid->getFrame()->tree() && clientAndroid->getFrame()->tree()->parent());
     48     return WebUrlLoader::start(client, handle, request, isMainResource, isMainFrame, isSync, webViewCore->webRequestContext());
     49 #else
     50     return clientAndroid->webFrame()->startLoadingResource(handle, request, isMainResource, isSync);
     51 #endif
     52 }
     53 
     54 bool ResourceLoaderAndroid::willLoadFromCache(const WebCore::KURL& url, int64_t identifier)
     55 {
     56 #if USE(CHROME_NETWORK_STACK)
     57     // This method is used to determine if a POST request can be repeated from
     58     // cache, but you cannot really know until you actually try to read from the
     59     // cache.  Even if we checked now, something else could come along and wipe
     60     // out the cache entry by the time we fetch it.
     61     //
     62     // So, we always say yes here, to prevent the FrameLoader from initiating a
     63     // reload.  Then in FrameLoaderClientImpl::dispatchWillSendRequest, we
     64     // fix-up the cache policy of the request to force a load from the cache.
     65     return true;
     66 #else
     67     return WebCoreResourceLoader::willLoadFromCache(url, identifier);
     68 #endif
     69 }
     70 
     71 }
     72