src/third_party/WebKit/Source/modules/filesystem/LocalFileSystem.h

   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 LocalFileSystem_h
  32 #define LocalFileSystem_h
  33
  34 #include "core/workers/WorkerClients.h"
  35 #include "platform/FileSystemType.h"
  36 #include "wtf/Forward.h"
  37 #include "wtf/Functional.h"
  38
  39 namespace blink {
  40
  41 class AsyncFileSystemCallbacks;
  42 class CallbackWrapper;
  43 class FileSystemClient;
  44 class ExecutionContext;
  45 class KURL;
  46 class LocalFrame;
  47 class WebFileSystem;
  48
  49 class LocalFileSystem FINAL : public NoBaseWillBeGarbageCollectedFinalized<LocalFileSystem>, public WillBeHeapSupplement<LocalFrame>, public WillBeHeapSupplement<WorkerClients> {
  50     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(LocalFileSystem);
  51     WTF_MAKE_NONCOPYABLE(LocalFileSystem);
  52 public:
  53     static PassOwnPtrWillBeRawPtr<LocalFileSystem> create(PassOwnPtr<FileSystemClient>);
  54     virtual ~LocalFileSystem();
  55
  56     void resolveURL(ExecutionContext*, const KURL&, PassOwnPtr<AsyncFileSystemCallbacks>);
  57     void requestFileSystem(ExecutionContext*, FileSystemType, long long size, PassOwnPtr<AsyncFileSystemCallbacks>);
  58     void deleteFileSystem(ExecutionContext*, FileSystemType, PassOwnPtr<AsyncFileSystemCallbacks>);
  59
  60     FileSystemClient* client() { return m_client.get(); }
  61
  62     static const char* supplementName();
  63     static LocalFileSystem* from(ExecutionContext&);
  64
  65     virtual void trace(Visitor* visitor) OVERRIDE
  66     {
  67         WillBeHeapSupplement<LocalFrame>::trace(visitor);
  68         WillBeHeapSupplement<WorkerClients>::trace(visitor);
  69     }
  70
  71 protected:
  72     explicit LocalFileSystem(PassOwnPtr<FileSystemClient>);
  73
  74 private:
  75     WebFileSystem* fileSystem() const;
  76     void requestFileSystemAccessInternal(ExecutionContext*, const Closure& allowed, const Closure& denied);
  77     void fileSystemNotAvailable(PassRefPtrWillBeRawPtr<ExecutionContext>, PassRefPtr<CallbackWrapper>);
  78     void fileSystemNotAllowedInternal(PassRefPtrWillBeRawPtr<ExecutionContext>, PassRefPtr<CallbackWrapper>);
  79     void fileSystemAllowedInternal(PassRefPtrWillBeRawPtr<ExecutionContext>, FileSystemType, PassRefPtr<CallbackWrapper>);
  80     void resolveURLInternal(PassRefPtrWillBeRawPtr<ExecutionContext>, const KURL&, PassRefPtr<CallbackWrapper>);
  81     void deleteFileSystemInternal(PassRefPtrWillBeRawPtr<ExecutionContext>, FileSystemType, PassRefPtr<CallbackWrapper>);
  82     OwnPtr<FileSystemClient> m_client;
  83 };
  84
  85 } // namespace blink
  86
  87 #endif // LocalFileSystem_h