third_party/WebKit/public/web/WebPageSerializerClient.h

   1 /*
   2  * Copyright (C) 2009 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 WebPageSerializerClient_h
  32 #define WebPageSerializerClient_h
  33
  34 namespace blink {
  35
  36 class WebCString;
  37 class WebURL;
  38
  39 // This class is used for providing sink interface that can be used to receive
  40 // the individual chunks of data to be saved.
  41 class WebPageSerializerClient {
  42 public:
  43     // This enum indicates  This sink interface can receive the individual chunks
  44     // of serialized data to be saved, so we use values of following enum
  45     // definition to indicate the serialization status of serializing all html
  46     // content. If current frame is not complete serialized, call
  47     // didSerializeDataForFrame with URL of current frame, data, data length and
  48     // flag CurrentFrameIsNotFinished.
  49     // If current frame is complete serialized, call didSerializeDataForFrame
  50     // with URL of current frame, data, data length and flag
  51     // CurrentFrameIsFinished.
  52     // If all frames of page are complete serialized, call
  53     // didSerializeDataForFrame with empty URL, empty data, 0 and flag
  54     // AllFramesAreFinished.
  55     enum PageSerializationStatus {
  56         CurrentFrameIsNotFinished,
  57         CurrentFrameIsFinished,
  58         AllFramesAreFinished,
  59     };
  60
  61     // Receive the individual chunks of serialized and encoded data to be saved.
  62     // The parameter frameURL specifies what frame the data belongs. The
  63     // parameter data contains the available data for saving. The parameter
  64     // status indicates the status of data serialization.
  65     virtual void didSerializeDataForFrame(const WebURL& frameURL,
  66                                           const WebCString& data,
  67                                           PageSerializationStatus status) = 0;
  68     WebPageSerializerClient() { }
  69
  70 protected:
  71     virtual ~WebPageSerializerClient() { }
  72 };
  73
  74 }  // namespace blink
  75
  76 #endif