src/third_party/WebKit/Source/modules/serviceworkers/Body.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef Body_h
   6 #define Body_h
   7
   8 #include "bindings/core/v8/ScriptPromise.h"
   9 #include "bindings/core/v8/ScriptPromiseResolver.h"
  10 #include "bindings/core/v8/ScriptWrappable.h"
  11 #include "core/dom/ActiveDOMObject.h"
  12 #include "core/fileapi/FileReaderLoader.h"
  13 #include "core/fileapi/FileReaderLoaderClient.h"
  14 #include "platform/blob/BlobData.h"
  15 #include "platform/heap/Handle.h"
  16 #include "wtf/RefPtr.h"
  17
  18 namespace blink {
  19
  20 class ScriptState;
  21
  22 class Body
  23     : public GarbageCollectedFinalized<Body>
  24     , public ScriptWrappable
  25     , public ActiveDOMObject
  26     , public FileReaderLoaderClient {
  27     DEFINE_WRAPPERTYPEINFO();
  28 public:
  29     explicit Body(ExecutionContext*);
  30     virtual ~Body() { }
  31     enum ResponseType {
  32         ResponseUnknown,
  33         ResponseAsArrayBuffer,
  34         ResponseAsBlob,
  35         ResponseAsFormData,
  36         ResponseAsJSON,
  37         ResponseAsText
  38     };
  39
  40     ScriptPromise arrayBuffer(ScriptState*);
  41     ScriptPromise blob(ScriptState*);
  42     ScriptPromise formData(ScriptState*);
  43     ScriptPromise json(ScriptState*);
  44     ScriptPromise text(ScriptState*);
  45
  46     bool bodyUsed() const;
  47
  48     // ActiveDOMObject override.
  49     virtual void stop() OVERRIDE;
  50     virtual bool hasPendingActivity() const OVERRIDE;
  51
  52     virtual void trace(Visitor*) { }
  53
  54 protected:
  55     // Copy constructor for clone() implementations
  56     explicit Body(const Body&);
  57
  58     // Sets the bodyUsed flag to true. This signifies that the contents of the
  59     // body have been consumed and cannot be accessed again.
  60     void setBodyUsed();
  61
  62 private:
  63     ScriptPromise readAsync(ScriptState*, ResponseType);
  64     void resolveJSON();
  65
  66     // FileReaderLoaderClient functions.
  67     virtual void didStartLoading() OVERRIDE;
  68     virtual void didReceiveData() OVERRIDE;
  69     virtual void didFinishLoading() OVERRIDE;
  70     virtual void didFail(FileError::ErrorCode) OVERRIDE;
  71
  72     virtual PassRefPtr<BlobDataHandle> blobDataHandle() = 0;
  73
  74     OwnPtr<FileReaderLoader> m_loader;
  75     bool m_bodyUsed;
  76     ResponseType m_responseType;
  77     RefPtr<ScriptPromiseResolver> m_resolver;
  78 };
  79
  80 } // namespace blink
  81
  82 #endif // Body_h