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36 #include "ActiveDOMObject.h"
37 #include "EventTarget.h"
38 #include "FileError.h"
39 #include "FileReaderLoader.h"
40 #include "FileReaderLoaderClient.h"
41 #include <wtf/Forward.h>
42 #include <wtf/RefCounted.h>
43 #include <wtf/text/WTFString.h>
48 class ScriptExecutionContext;
50 typedef int ExceptionCode;
52 class FileReader : public RefCounted<FileReader>, public ActiveDOMObject, public EventTarget, public FileReaderLoaderClient {
54 static PassRefPtr<FileReader> create(ScriptExecutionContext*);
56 virtual ~FileReader();
64 void readAsArrayBuffer(Blob*, ExceptionCode&);
65 void readAsBinaryString(Blob*, ExceptionCode&);
66 void readAsText(Blob*, const String& encoding, ExceptionCode&);
67 void readAsText(Blob*, ExceptionCode&);
68 void readAsDataURL(Blob*, ExceptionCode&);
73 ReadyState readyState() const { return m_state; }
74 PassRefPtr<FileError> error() { return m_error; }
75 FileReaderLoader::ReadType readType() const { return m_readType; }
76 PassRefPtr<ArrayBuffer> arrayBufferResult() const;
77 String stringResult();
80 virtual bool canSuspend() const;
84 virtual const AtomicString& interfaceName() const;
85 virtual ScriptExecutionContext* scriptExecutionContext() const { return ActiveDOMObject::scriptExecutionContext(); }
87 // FileReaderLoaderClient
88 virtual void didStartLoading();
89 virtual void didReceiveData();
90 virtual void didFinishLoading();
91 virtual void didFail(int errorCode);
93 using RefCounted<FileReader>::ref;
94 using RefCounted<FileReader>::deref;
96 DEFINE_ATTRIBUTE_EVENT_LISTENER(loadstart);
97 DEFINE_ATTRIBUTE_EVENT_LISTENER(progress);
98 DEFINE_ATTRIBUTE_EVENT_LISTENER(load);
99 DEFINE_ATTRIBUTE_EVENT_LISTENER(abort);
100 DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
101 DEFINE_ATTRIBUTE_EVENT_LISTENER(loadend);
104 FileReader(ScriptExecutionContext*);
107 virtual void refEventTarget() { ref(); }
108 virtual void derefEventTarget() { deref(); }
109 virtual EventTargetData* eventTargetData() { return &m_eventTargetData; }
110 virtual EventTargetData* ensureEventTargetData() { return &m_eventTargetData; }
113 void readInternal(Blob*, FileReaderLoader::ReadType, ExceptionCode&);
114 void fireErrorEvent(int httpStatusCode);
115 void fireEvent(const AtomicString& type);
119 EventTargetData m_eventTargetData;
122 FileReaderLoader::ReadType m_readType;
125 OwnPtr<FileReaderLoader> m_loader;
126 RefPtr<FileError> m_error;
127 double m_lastProgressNotificationTimeMS;
130 } // namespace WebCore
132 #endif // ENABLE(BLOB)
134 #endif // FileReader_h