| /* |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef DOMFileSystem_h |
| #define DOMFileSystem_h |
| |
| #include "bindings/core/v8/ScriptWrappable.h" |
| #include "core/dom/ActiveDOMObject.h" |
| #include "core/dom/ExecutionContext.h" |
| #include "core/dom/ExecutionContextTask.h" |
| #include "modules/filesystem/DOMFileSystemBase.h" |
| #include "modules/filesystem/EntriesCallback.h" |
| #include "platform/heap/Handle.h" |
| |
| namespace blink { |
| |
| class DirectoryEntry; |
| class File; |
| class FileCallback; |
| class FileEntry; |
| class FileWriterCallback; |
| |
| class DOMFileSystem FINAL : public DOMFileSystemBase, public ScriptWrappable, public ActiveDOMObject { |
| public: |
| static DOMFileSystem* create(ExecutionContext*, const String& name, FileSystemType, const KURL& rootURL); |
| |
| // Creates a new isolated file system for the given filesystemId. |
| static DOMFileSystem* createIsolatedFileSystem(ExecutionContext*, const String& filesystemId); |
| |
| DirectoryEntry* root(); |
| |
| // DOMFileSystemBase overrides. |
| virtual void addPendingCallbacks() OVERRIDE; |
| virtual void removePendingCallbacks() OVERRIDE; |
| virtual void reportError(PassOwnPtr<ErrorCallback>, PassRefPtrWillBeRawPtr<FileError>) OVERRIDE; |
| |
| // ActiveDOMObject overrides. |
| virtual bool hasPendingActivity() const OVERRIDE; |
| |
| void createWriter(const FileEntry*, PassOwnPtr<FileWriterCallback>, PassOwnPtr<ErrorCallback>); |
| void createFile(const FileEntry*, PassOwnPtr<FileCallback>, PassOwnPtr<ErrorCallback>); |
| |
| // Schedule a callback. This should not cross threads (should be called on the same context thread). |
| // FIXME: move this to a more generic place. |
| template <typename CB, typename CBArg> |
| static void scheduleCallback(ExecutionContext*, PassOwnPtr<CB>, PassRefPtrWillBeRawPtr<CBArg>); |
| |
| template <typename CB, typename CBArg> |
| static void scheduleCallback(ExecutionContext*, PassOwnPtr<CB>, CBArg*); |
| |
| template <typename CB, typename CBArg> |
| static void scheduleCallback(ExecutionContext*, PassOwnPtr<CB>, const HeapVector<CBArg>&); |
| |
| template <typename CB, typename CBArg> |
| static void scheduleCallback(ExecutionContext*, PassOwnPtr<CB>, const CBArg&); |
| |
| template <typename CB> |
| static void scheduleCallback(ExecutionContext*, PassOwnPtr<CB>); |
| |
| template <typename CB, typename CBArg> |
| void scheduleCallback(PassOwnPtr<CB> callback, PassRefPtrWillBeRawPtr<CBArg> callbackArg) |
| { |
| scheduleCallback(executionContext(), callback, callbackArg); |
| } |
| |
| template <typename CB, typename CBArg> |
| void scheduleCallback(PassOwnPtr<CB> callback, CBArg* callbackArg) |
| { |
| scheduleCallback(executionContext(), callback, callbackArg); |
| } |
| |
| template <typename CB, typename CBArg> |
| void scheduleCallback(PassOwnPtr<CB> callback, const CBArg& callbackArg) |
| { |
| scheduleCallback(executionContext(), callback, callbackArg); |
| } |
| |
| private: |
| DOMFileSystem(ExecutionContext*, const String& name, FileSystemType, const KURL& rootURL); |
| |
| class DispatchCallbackTaskBase : public ExecutionContextTask { |
| public: |
| DispatchCallbackTaskBase() |
| : m_taskName("FileSystem") |
| { |
| } |
| |
| virtual const String& taskNameForInstrumentation() const OVERRIDE |
| { |
| return m_taskName; |
| } |
| |
| private: |
| const String m_taskName; |
| }; |
| |
| // A helper template to schedule a callback task. |
| template <typename CB, typename CBArg> |
| class DispatchCallbackRefPtrArgTask FINAL : public DispatchCallbackTaskBase { |
| public: |
| DispatchCallbackRefPtrArgTask(PassOwnPtr<CB> callback, PassRefPtrWillBeRawPtr<CBArg> arg) |
| : m_callback(callback) |
| , m_callbackArg(arg) |
| { |
| } |
| |
| virtual void performTask(ExecutionContext*) OVERRIDE |
| { |
| m_callback->handleEvent(m_callbackArg.get()); |
| } |
| |
| private: |
| OwnPtr<CB> m_callback; |
| RefPtrWillBePersistent<CBArg> m_callbackArg; |
| }; |
| |
| template <typename CB, typename CBArg> |
| class DispatchCallbackPtrArgTask FINAL : public DispatchCallbackTaskBase { |
| public: |
| DispatchCallbackPtrArgTask(PassOwnPtr<CB> callback, CBArg* arg) |
| : m_callback(callback) |
| , m_callbackArg(arg) |
| { |
| } |
| |
| virtual void performTask(ExecutionContext*) OVERRIDE |
| { |
| m_callback->handleEvent(m_callbackArg.get()); |
| } |
| |
| private: |
| OwnPtr<CB> m_callback; |
| Persistent<CBArg> m_callbackArg; |
| }; |
| |
| template <typename CB, typename CBArg> |
| class DispatchCallbackNonPtrArgTask FINAL : public DispatchCallbackTaskBase { |
| public: |
| DispatchCallbackNonPtrArgTask(PassOwnPtr<CB> callback, const CBArg& arg) |
| : m_callback(callback) |
| , m_callbackArg(arg) |
| { |
| } |
| |
| virtual void performTask(ExecutionContext*) OVERRIDE |
| { |
| m_callback->handleEvent(m_callbackArg); |
| } |
| |
| private: |
| OwnPtr<CB> m_callback; |
| CBArg m_callbackArg; |
| }; |
| |
| template <typename CB> |
| class DispatchCallbackNoArgTask FINAL : public DispatchCallbackTaskBase { |
| public: |
| DispatchCallbackNoArgTask(PassOwnPtr<CB> callback) |
| : m_callback(callback) |
| { |
| } |
| |
| virtual void performTask(ExecutionContext*) OVERRIDE |
| { |
| m_callback->handleEvent(); |
| } |
| |
| private: |
| OwnPtr<CB> m_callback; |
| }; |
| |
| int m_numberOfPendingCallbacks; |
| }; |
| |
| template <typename CB, typename CBArg> |
| void DOMFileSystem::scheduleCallback(ExecutionContext* executionContext, PassOwnPtr<CB> callback, PassRefPtrWillBeRawPtr<CBArg> arg) |
| { |
| ASSERT(executionContext->isContextThread()); |
| if (callback) |
| executionContext->postTask(adoptPtr(new DispatchCallbackRefPtrArgTask<CB, CBArg>(callback, arg))); |
| } |
| |
| template <typename CB, typename CBArg> |
| void DOMFileSystem::scheduleCallback(ExecutionContext* executionContext, PassOwnPtr<CB> callback, CBArg* arg) |
| { |
| ASSERT(executionContext->isContextThread()); |
| if (callback) |
| executionContext->postTask(adoptPtr(new DispatchCallbackPtrArgTask<CB, CBArg>(callback, arg))); |
| } |
| |
| template <typename CB, typename CBArg> |
| void DOMFileSystem::scheduleCallback(ExecutionContext* executionContext, PassOwnPtr<CB> callback, const HeapVector<CBArg>& arg) |
| { |
| ASSERT(executionContext->isContextThread()); |
| if (callback) |
| executionContext->postTask(adoptPtr(new DispatchCallbackNonPtrArgTask<CB, PersistentHeapVector<CBArg> >(callback, arg))); |
| } |
| |
| template <typename CB, typename CBArg> |
| void DOMFileSystem::scheduleCallback(ExecutionContext* executionContext, PassOwnPtr<CB> callback, const CBArg& arg) |
| { |
| ASSERT(executionContext->isContextThread()); |
| if (callback) |
| executionContext->postTask(adoptPtr(new DispatchCallbackNonPtrArgTask<CB, CBArg>(callback, arg))); |
| } |
| |
| template <typename CB> |
| void DOMFileSystem::scheduleCallback(ExecutionContext* executionContext, PassOwnPtr<CB> callback) |
| { |
| ASSERT(executionContext->isContextThread()); |
| if (callback) |
| executionContext->postTask(adoptPtr(new DispatchCallbackNoArgTask<CB>(callback))); |
| } |
| |
| } // namespace |
| |
| #endif // DOMFileSystem_h |