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36 #include "ActiveDOMObject.h"
37 #include "EventTarget.h"
38 #include "ExceptionCode.h"
39 #include "FileError.h"
40 #include "FileReaderLoader.h"
41 #include "FileReaderLoaderClient.h"
42 #include <wtf/Forward.h>
43 #include <wtf/RefCounted.h>
44 #include <wtf/text/WTFString.h>
50 class ScriptExecutionContext;
52 class FileReader : public RefCounted<FileReader>, public ActiveDOMObject, public EventTarget, public FileReaderLoaderClient {
54 static PassRefPtr<FileReader> create(ScriptExecutionContext* context)
56 return adoptRef(new FileReader(context));
59 virtual ~FileReader();
67 void readAsArrayBuffer(Blob*, ExceptionCode&);
68 void readAsBinaryString(Blob*, ExceptionCode&);
69 void readAsText(Blob*, const String& encoding, ExceptionCode&);
70 void readAsText(Blob*, ExceptionCode&);
71 void readAsDataURL(Blob*, ExceptionCode&);
76 ReadyState readyState() const { return m_state; }
77 PassRefPtr<FileError> error() { return m_error; }
78 FileReaderLoader::ReadType readType() const { return m_readType; }
79 PassRefPtr<ArrayBuffer> arrayBufferResult() const;
80 String stringResult();
83 virtual bool canSuspend() const;
85 virtual bool hasPendingActivity() const;
88 virtual FileReader* toFileReader() { return this; }
89 virtual ScriptExecutionContext* scriptExecutionContext() const { return ActiveDOMObject::scriptExecutionContext(); }
91 // FileReaderLoaderClient
92 virtual void didStartLoading();
93 virtual void didReceiveData();
94 virtual void didFinishLoading();
95 virtual void didFail(int errorCode);
97 using RefCounted<FileReader>::ref;
98 using RefCounted<FileReader>::deref;
100 DEFINE_ATTRIBUTE_EVENT_LISTENER(loadstart);
101 DEFINE_ATTRIBUTE_EVENT_LISTENER(progress);
102 DEFINE_ATTRIBUTE_EVENT_LISTENER(load);
103 DEFINE_ATTRIBUTE_EVENT_LISTENER(abort);
104 DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
105 DEFINE_ATTRIBUTE_EVENT_LISTENER(loadend);
108 FileReader(ScriptExecutionContext*);
111 virtual void refEventTarget() { ref(); }
112 virtual void derefEventTarget() { deref(); }
113 virtual EventTargetData* eventTargetData() { return &m_eventTargetData; }
114 virtual EventTargetData* ensureEventTargetData() { return &m_eventTargetData; }
117 void readInternal(Blob*, FileReaderLoader::ReadType, ExceptionCode&);
118 void fireErrorEvent(int httpStatusCode);
119 void fireEvent(const AtomicString& type);
123 EventTargetData m_eventTargetData;
126 FileReaderLoader::ReadType m_readType;
129 OwnPtr<FileReaderLoader> m_loader;
130 RefPtr<FileError> m_error;
131 double m_lastProgressNotificationTimeMS;
134 } // namespace WebCore
136 #endif // ENABLE(BLOB)
138 #endif // FileReader_h