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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 "WebUrlLoader.h"
33 #include "WebViewCore.h"
34 
35 using namespace android;
36 
37 namespace WebCore {
38 
start(ResourceHandle * handle,const ResourceRequest & request,FrameLoaderClient * client,bool isMainResource,bool isSync)39 PassRefPtr<ResourceLoaderAndroid> ResourceLoaderAndroid::start(
40         ResourceHandle* handle, const ResourceRequest& request, FrameLoaderClient* client, bool isMainResource, bool isSync)
41 {
42     // Called on main thread
43     FrameLoaderClientAndroid* clientAndroid = static_cast<FrameLoaderClientAndroid*>(client);
44     WebViewCore* webViewCore = WebViewCore::getWebViewCore(clientAndroid->getFrame()->view());
45     bool isMainFrame = !(clientAndroid->getFrame()->tree() && clientAndroid->getFrame()->tree()->parent());
46     return WebUrlLoader::start(client, handle, request, isMainResource, isMainFrame, isSync, webViewCore->webRequestContext());
47 }
48 
willLoadFromCache(const WebCore::KURL & url,int64_t identifier)49 bool ResourceLoaderAndroid::willLoadFromCache(const WebCore::KURL& url, int64_t identifier)
50 {
51     // This method is used to determine if a POST request can be repeated from
52     // cache, but you cannot really know until you actually try to read from the
53     // cache.  Even if we checked now, something else could come along and wipe
54     // out the cache entry by the time we fetch it.
55     //
56     // So, we always say yes here, to prevent the FrameLoader from initiating a
57     // reload.  Then in FrameLoaderClientImpl::dispatchWillSendRequest, we
58     // fix-up the cache policy of the request to force a load from the cache.
59     return true;
60 }
61 
62 }
63