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      1 /*
      2  * Copyright (C) 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 WebBlob_h
     32 #define WebBlob_h
     33 
     34 #include "public/platform/WebBlobData.h"
     35 #include "public/platform/WebCommon.h"
     36 #include "public/platform/WebPrivatePtr.h"
     37 #include "public/platform/WebString.h"
     38 #include "public/platform/WebURL.h"
     39 
     40 #if BLINK_IMPLEMENTATION
     41 #include "platform/heap/Handle.h"
     42 #endif
     43 
     44 namespace v8 {
     45 class Isolate;
     46 class Object;
     47 class Value;
     48 template <class T> class Handle;
     49 }
     50 
     51 namespace blink {
     52 
     53 class Blob;
     54 
     55 class WebBlob {
     56 public:
     57     ~WebBlob() { reset(); }
     58 
     59     WebBlob() { }
     60     WebBlob(const WebBlob& b) { assign(b); }
     61     WebBlob& operator=(const WebBlob& b)
     62     {
     63         assign(b);
     64         return *this;
     65     }
     66 
     67     BLINK_EXPORT static WebBlob createFromUUID(const WebString& uuid, const WebString& type, long long size);
     68     BLINK_EXPORT static WebBlob createFromFile(const WebString& path, long long size);
     69     BLINK_EXPORT static WebBlob fromV8Value(v8::Handle<v8::Value>);
     70 
     71     BLINK_EXPORT void reset();
     72     BLINK_EXPORT void assign(const WebBlob&);
     73     BLINK_EXPORT WebString uuid();
     74 
     75     bool isNull() const { return m_private.isNull(); }
     76 
     77     BLINK_EXPORT v8::Handle<v8::Value>  toV8Value(v8::Handle<v8::Object> creationContext, v8::Isolate*);
     78 
     79 #if BLINK_IMPLEMENTATION
     80     explicit WebBlob(const PassRefPtrWillBeRawPtr<Blob>&);
     81     WebBlob& operator=(const PassRefPtrWillBeRawPtr<Blob>&);
     82 #endif
     83 
     84 protected:
     85     WebPrivatePtr<Blob> m_private;
     86 };
     87 
     88 } // namespace blink
     89 
     90 #endif // WebBlob_h
     91