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      1 /*
      2  * Copyright (C) 2010 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   WebFileSystemCallbacks_h
     32 #define   WebFileSystemCallbacks_h
     33 
     34 #include "WebFileError.h"
     35 #include "WebFileSystemEntry.h"
     36 #include "WebVector.h"
     37 
     38 namespace WebKit {
     39 
     40 class WebString;
     41 struct WebFileInfo;
     42 
     43 class WebFileSystemCallbacks {
     44 public:
     45     // Callback for WebFileSystem's various operations that don't require
     46     // return values.
     47     virtual void didSucceed() = 0;
     48 
     49     // Callback for WebFileSystem::readMetadata. Called with the file metadata
     50     // for the requested path.
     51     virtual void didReadMetadata(const WebFileInfo&) = 0;
     52 
     53     // Callback for WebFileSystem::readDirectory.  Called with a vector of
     54     // file entries in the requested directory. This callback might be called
     55     // multiple times if the directory has many entries. |hasMore| must be
     56     // true when there are more entries.
     57     virtual void didReadDirectory(const WebVector<WebFileSystemEntry>&, bool hasMore) = 0;
     58 
     59     // Callback for WebFrameClient::openFileSystem. Called with a name and
     60     // root path for the FileSystem when the request is accepted.
     61     virtual void didOpenFileSystem(const WebString& name, const WebString& rootPath) = 0;
     62 
     63     // Called with an error code when a requested operation hasn't been
     64     // completed.
     65     virtual void didFail(WebFileError) = 0;
     66 
     67 protected:
     68     virtual ~WebFileSystemCallbacks() {}
     69 };
     70 
     71 } // namespace WebKit
     72 
     73 #endif
     74