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 #include "wtf/PassOwnPtr.h"
  39
  40 namespace blink {
  41
  42 class AsyncFileSystemCallbacks;
  43 class CallbackWrapper;
  44 class FileSystemClient;
  45 class ExecutionContext;
  46 class KURL;
  47 class LocalFrame;
  48 class WebFileSystem;
  49
  50 class LocalFileSystem final : public NoBaseWillBeGarbageCollectedFinalized<LocalFileSystem>, public WillBeHeapSupplement<LocalFrame>, public WillBeHeapSupplement<WorkerClients> {
  51     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(LocalFileSystem);
  52     WTF_MAKE_NONCOPYABLE(LocalFileSystem);
  53     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(LocalFileSystem);
  54 public:
  55     static PassOwnPtrWillBeRawPtr<LocalFileSystem> create(PassOwnPtr<FileSystemClient>);
  56     virtual ~LocalFileSystem();
  57
  58     void resolveURL(ExecutionContext*, const KURL&, PassOwnPtr<AsyncFileSystemCallbacks>);
  59     void requestFileSystem(ExecutionContext*, FileSystemType, long long size, PassOwnPtr<AsyncFileSystemCallbacks>);
  60     void deleteFileSystem(ExecutionContext*, FileSystemType, PassOwnPtr<AsyncFileSystemCallbacks>);
  61
  62     FileSystemClient* client() { return m_client.get(); }
  63
  64     static const char* supplementName();
  65     static LocalFileSystem* from(ExecutionContext&);
  66
  67     DEFINE_INLINE_VIRTUAL_TRACE()
  68     {
  69         WillBeHeapSupplement<LocalFrame>::trace(visitor);
  70         WillBeHeapSupplement<WorkerClients>::trace(visitor);
  71     }
  72
  73 protected:
  74     explicit LocalFileSystem(PassOwnPtr<FileSystemClient>);
  75
  76 private:
  77     WebFileSystem* fileSystem() const;
  78     void requestFileSystemAccessInternal(ExecutionContext*, PassOwnPtr<Closure> allowed, PassOwnPtr<Closure> denied);
  79     void fileSystemNotAvailable(PassRefPtrWillBeRawPtr<ExecutionContext>, CallbackWrapper*);
  80     void fileSystemNotAllowedInternal(PassRefPtrWillBeRawPtr<ExecutionContext>, CallbackWrapper*);
  81     void fileSystemAllowedInternal(PassRefPtrWillBeRawPtr<ExecutionContext>, FileSystemType, CallbackWrapper*);
  82     void resolveURLInternal(PassRefPtrWillBeRawPtr<ExecutionContext>, const KURL&, CallbackWrapper*);
  83     void deleteFileSystemInternal(PassRefPtrWillBeRawPtr<ExecutionContext>, FileSystemType, CallbackWrapper*);
  84     OwnPtr<FileSystemClient> m_client;
  85 };
  86
  87 } // namespace blink
  88
  89 #endif // LocalFileSystem_h