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29 #ifndef ResourceLoader_h
30 #define ResourceLoader_h
32 #include "core/fetch/ResourceLoaderOptions.h"
33 #include "platform/network/ResourceRequest.h"
34 #include "public/platform/WebURLLoader.h"
35 #include "public/platform/WebURLLoaderClient.h"
36 #include "wtf/Forward.h"
37 #include "wtf/RefCounted.h"
40 class WebThreadedDataReceiver;
48 class ResourceResponse;
49 class ResourceLoaderHost;
51 class ResourceLoader FINAL : public RefCountedWillBeGarbageCollectedFinalized<ResourceLoader>, protected WebURLLoaderClient {
53 static PassRefPtrWillBeRawPtr<ResourceLoader> create(ResourceLoaderHost*, Resource*, const ResourceRequest&, const ResourceLoaderOptions&);
54 virtual ~ResourceLoader();
58 void changeToSynchronous();
61 void cancel(const ResourceError&);
62 void cancelIfNotFinishing();
64 Resource* cachedResource() { return m_resource; }
65 const ResourceRequest& originalRequest() const { return m_originalRequest; }
67 void setDefersLoading(bool);
68 bool defersLoading() const { return m_defersLoading; }
70 void attachThreadedDataReceiver(PassOwnPtr<blink::WebThreadedDataReceiver>);
72 void releaseResources();
74 void didChangePriority(ResourceLoadPriority, int intraPriorityValue);
77 virtual void willSendRequest(blink::WebURLLoader*, blink::WebURLRequest&, const blink::WebURLResponse& redirectResponse) OVERRIDE;
78 virtual void didSendData(blink::WebURLLoader*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) OVERRIDE;
79 virtual void didReceiveResponse(blink::WebURLLoader*, const blink::WebURLResponse&) OVERRIDE;
80 virtual void didReceiveData(blink::WebURLLoader*, const char*, int, int encodedDataLength) OVERRIDE;
81 virtual void didReceiveCachedMetadata(blink::WebURLLoader*, const char* data, int length) OVERRIDE;
82 virtual void didFinishLoading(blink::WebURLLoader*, double finishTime, int64 encodedDataLength) OVERRIDE;
83 virtual void didFail(blink::WebURLLoader*, const blink::WebURLError&) OVERRIDE;
84 virtual void didDownloadData(blink::WebURLLoader*, int, int) OVERRIDE;
86 const KURL& url() const { return m_request.url(); }
87 bool shouldSniffContent() const { return m_options.sniffContent == SniffContent; }
88 bool isLoadedBy(ResourceLoaderHost*) const;
90 bool reachedTerminalState() const { return m_state == Terminated; }
91 const ResourceRequest& request() const { return m_request; }
93 class RequestCountTracker {
95 RequestCountTracker(ResourceLoaderHost*, Resource*);
96 RequestCountTracker(const RequestCountTracker&);
97 ~RequestCountTracker();
99 ResourceLoaderHost* m_host;
100 Resource* m_resource;
104 ResourceLoader(ResourceLoaderHost*, Resource*, const ResourceLoaderOptions&);
106 void init(const ResourceRequest&);
107 void requestSynchronously();
109 void didFinishLoadingOnePart(double finishTime, int64_t encodedDataLength);
111 bool responseNeedsAccessControlCheck() const;
113 ResourceRequest& applyOptions(ResourceRequest&) const;
115 OwnPtr<blink::WebURLLoader> m_loader;
116 RefPtrWillBeMember<ResourceLoaderHost> m_host;
118 ResourceRequest m_request;
119 ResourceRequest m_originalRequest; // Before redirects.
121 bool m_notifiedLoadComplete;
123 bool m_defersLoading;
124 ResourceRequest m_deferredRequest;
125 ResourceLoaderOptions m_options;
127 enum ResourceLoaderState {
133 enum ConnectionState {
135 ConnectionStateStarted,
136 ConnectionStateReceivedResponse,
137 ConnectionStateReceivingData,
138 ConnectionStateFinishedLoading,
139 ConnectionStateCanceled,
140 ConnectionStateFailed,
143 RawPtrWillBeMember<Resource> m_resource;
144 ResourceLoaderState m_state;
146 // Used for sanity checking to make sure we don't experience illegal state
148 ConnectionState m_connectionState;
150 OwnPtr<RequestCountTracker> m_requestCountTracker;