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1 /* | |
2 * Copyright (C) 2010, 2011 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 AssociatedURLLoader_h | |
32 #define AssociatedURLLoader_h | |
33 | |
34 #include "platform/heap/Handle.h" | |
35 #include "public/platform/WebURLLoader.h" | |
36 #include "public/web/WebURLLoaderOptions.h" | |
37 #include "wtf/Noncopyable.h" | |
38 #include "wtf/RefPtr.h" | |
39 #include <memory> | |
40 | |
41 namespace blink { | |
42 | |
43 class DocumentThreadableLoader; | |
44 class WebLocalFrameImpl; | |
45 | |
46 // This class is used to implement WebFrame::createAssociatedURLLoader. | |
47 class AssociatedURLLoader final : public WebURLLoader { | |
48 WTF_MAKE_NONCOPYABLE(AssociatedURLLoader); | |
49 | |
50 public: | |
51 AssociatedURLLoader(WebLocalFrameImpl*, const WebURLLoaderOptions&); | |
52 ~AssociatedURLLoader(); | |
53 | |
54 // WebURLLoader methods: | |
55 void loadSynchronously(const WebURLRequest&, | |
56 WebURLResponse&, | |
57 WebURLError&, | |
58 WebData&, | |
59 int64_t& encodedDataLength) override; | |
60 void loadAsynchronously(const WebURLRequest&, WebURLLoaderClient*) override; | |
61 void cancel() override; | |
62 void setDefersLoading(bool) override; | |
63 void setLoadingTaskRunner(blink::WebTaskRunner*) override; | |
64 | |
65 // Called by |m_observer| to handle destruction of the Document associated | |
66 // with the frame given to the constructor. | |
67 void documentDestroyed(); | |
68 | |
69 // Called by ClientAdapter to handle completion of loading. | |
70 void clientAdapterDone(); | |
71 | |
72 private: | |
73 class ClientAdapter; | |
74 class Observer; | |
75 | |
76 void cancelLoader(); | |
77 void disposeObserver(); | |
78 | |
79 WebURLLoaderClient* releaseClient() { | |
80 WebURLLoaderClient* client = m_client; | |
81 m_client = nullptr; | |
82 return client; | |
83 } | |
84 | |
85 WebURLLoaderClient* m_client; | |
86 WebURLLoaderOptions m_options; | |
87 | |
88 // An adapter which converts the DocumentThreadableLoaderClient method | |
89 // calls into the WebURLLoaderClient method calls. | |
90 std::unique_ptr<ClientAdapter> m_clientAdapter; | |
91 Persistent<DocumentThreadableLoader> m_loader; | |
92 | |
93 // A ContextLifecycleObserver for cancelling |m_loader| when the Document | |
94 // is detached. | |
95 Persistent<Observer> m_observer; | |
96 }; | |
97 | |
98 } // namespace blink | |
99 | |
100 #endif | |
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