Source/WebKit/chromium/src/WorkerAsyncFileSystemChromium.cpp

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   9  * notice, this list of conditions and the following disclaimer.
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  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
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  30
  31 #include "config.h"
  32 #include "WorkerAsyncFileSystemChromium.h"
  33
  34 #if ENABLE(FILE_SYSTEM)
  35
  36 #include "AsyncFileSystemCallbacks.h"
  37 #include "FileMetadata.h"
  38 #include "FileSystem.h"
  39 #include "NotImplemented.h"
  40 #include "WebFileSystem.h"
  41 #include "WebFileSystemCallbacksImpl.h"
  42 #include "WebFileWriter.h"
  43 #include "WebKit.h"
  44 #include "WebKitClient.h"
  45 #include "WebWorkerBase.h"
  46 #include "WorkerAsyncFileWriterChromium.h"
  47 #include "WorkerContext.h"
  48 #include "WorkerFileSystemCallbacksBridge.h"
  49 #include "WorkerScriptController.h"
  50 #include "WorkerThread.h"
  51 #include <wtf/text/CString.h>
  52
  53 using namespace WebKit;
  54
  55 namespace WebCore {
  56
  57 static const char fileSystemOperationsMode[] = "fileSystemOperationsMode";
  58
  59 WorkerAsyncFileSystemChromium::WorkerAsyncFileSystemChromium(ScriptExecutionContext* context, AsyncFileSystem::Type type, const String& rootPath, bool synchronous)
  60     : AsyncFileSystem(type, rootPath)
  61     , m_scriptExecutionContext(context)
  62     , m_webFileSystem(WebKit::webKitClient()->fileSystem())
  63     , m_workerContext(static_cast<WorkerContext*>(context))
  64     , m_synchronous(synchronous)
  65 {
  66     ASSERT(m_webFileSystem);
  67     ASSERT(m_scriptExecutionContext->isWorkerContext());
  68
  69     WorkerLoaderProxy* workerLoaderProxy = &m_workerContext->thread()->workerLoaderProxy();
  70     m_worker = static_cast<WebWorkerBase*>(workerLoaderProxy);
  71 }
  72
  73 WorkerAsyncFileSystemChromium::~WorkerAsyncFileSystemChromium()
  74 {
  75 }
  76
  77 bool WorkerAsyncFileSystemChromium::waitForOperationToComplete()
  78 {
  79     if (!m_bridgeForCurrentOperation.get())
  80         return false;
  81
  82     RefPtr<WorkerFileSystemCallbacksBridge> bridge = m_bridgeForCurrentOperation.release();
  83     if (m_workerContext->thread()->runLoop().runInMode(m_workerContext, m_modeForCurrentOperation) == MessageQueueTerminated) {
  84         bridge->stop();
  85         return false;
  86     }
  87     return true;
  88 }
  89
  90 void WorkerAsyncFileSystemChromium::move(const String& sourcePath, const String& destinationPath, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
  91 {
  92     createWorkerFileSystemCallbacksBridge(callbacks)->postMoveToMainThread(m_webFileSystem, sourcePath, destinationPath, m_modeForCurrentOperation);
  93 }
  94
  95 void WorkerAsyncFileSystemChromium::copy(const String& sourcePath, const String& destinationPath, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
  96 {
  97     createWorkerFileSystemCallbacksBridge(callbacks)->postCopyToMainThread(m_webFileSystem, sourcePath, destinationPath, m_modeForCurrentOperation);
  98 }
  99
 100 void WorkerAsyncFileSystemChromium::remove(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 101 {
 102     createWorkerFileSystemCallbacksBridge(callbacks)->postRemoveToMainThread(m_webFileSystem, path, m_modeForCurrentOperation);
 103 }
 104
 105 void WorkerAsyncFileSystemChromium::removeRecursively(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 106 {
 107     createWorkerFileSystemCallbacksBridge(callbacks)->postRemoveRecursivelyToMainThread(m_webFileSystem, path, m_modeForCurrentOperation);
 108 }
 109
 110 void WorkerAsyncFileSystemChromium::readMetadata(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 111 {
 112     createWorkerFileSystemCallbacksBridge(callbacks)->postReadMetadataToMainThread(m_webFileSystem, path, m_modeForCurrentOperation);
 113 }
 114
 115 void WorkerAsyncFileSystemChromium::createFile(const String& path, bool exclusive, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 116 {
 117     createWorkerFileSystemCallbacksBridge(callbacks)->postCreateFileToMainThread(m_webFileSystem, path, exclusive, m_modeForCurrentOperation);
 118 }
 119
 120 void WorkerAsyncFileSystemChromium::createDirectory(const String& path, bool exclusive, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 121 {
 122     createWorkerFileSystemCallbacksBridge(callbacks)->postCreateDirectoryToMainThread(m_webFileSystem, path, exclusive, m_modeForCurrentOperation);
 123 }
 124
 125 void WorkerAsyncFileSystemChromium::fileExists(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 126 {
 127     createWorkerFileSystemCallbacksBridge(callbacks)->postFileExistsToMainThread(m_webFileSystem, path, m_modeForCurrentOperation);
 128 }
 129
 130 void WorkerAsyncFileSystemChromium::directoryExists(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 131 {
 132     createWorkerFileSystemCallbacksBridge(callbacks)->postDirectoryExistsToMainThread(m_webFileSystem, path, m_modeForCurrentOperation);
 133 }
 134
 135 void WorkerAsyncFileSystemChromium::readDirectory(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 136 {
 137     createWorkerFileSystemCallbacksBridge(callbacks)->postReadDirectoryToMainThread(m_webFileSystem, path, m_modeForCurrentOperation);
 138 }
 139
 140 class WorkerFileWriterHelperCallbacks : public AsyncFileSystemCallbacks {
 141 public:
 142     static PassOwnPtr<WorkerFileWriterHelperCallbacks> create(AsyncFileWriterClient* client, const String& path, WebKit::WebFileSystem* webFileSystem, PassOwnPtr<WebCore::AsyncFileSystemCallbacks> callbacks, WorkerContext* workerContext)
 143     {
 144         return adoptPtr(new WorkerFileWriterHelperCallbacks(client, path, webFileSystem, callbacks, workerContext));
 145     }
 146
 147     virtual void didSucceed()
 148     {
 149         ASSERT_NOT_REACHED();
 150     }
 151
 152     virtual void didReadMetadata(const FileMetadata& metadata)
 153     {
 154         ASSERT(m_callbacks);
 155         if (metadata.type != FileMetadata::TypeFile || metadata.length < 0)
 156             m_callbacks->didFail(WebKit::WebFileErrorInvalidState);
 157         else {
 158             OwnPtr<WorkerAsyncFileWriterChromium> asyncFileWriterChromium = WorkerAsyncFileWriterChromium::create(m_webFileSystem, m_path, m_workerContext, m_client, WorkerAsyncFileWriterChromium::Asynchronous);
 159             m_callbacks->didCreateFileWriter(asyncFileWriterChromium.release(), metadata.length);
 160         }
 161     }
 162
 163     virtual void didReadDirectoryEntry(const String& name, bool isDirectory)
 164     {
 165         ASSERT_NOT_REACHED();
 166     }
 167
 168     virtual void didReadDirectoryEntries(bool hasMore)
 169     {
 170         ASSERT_NOT_REACHED();
 171     }
 172
 173     virtual void didOpenFileSystem(const String&, PassOwnPtr<AsyncFileSystem>)
 174     {
 175         ASSERT_NOT_REACHED();
 176     }
 177
 178     // Called when an AsyncFileWrter has been created successfully.
 179     virtual void didCreateFileWriter(PassOwnPtr<AsyncFileWriter>, long long)
 180     {
 181         ASSERT_NOT_REACHED();
 182     }
 183
 184     virtual void didFail(int code)
 185     {
 186         ASSERT(m_callbacks);
 187         m_callbacks->didFail(code);
 188     }
 189
 190 private:
 191     WorkerFileWriterHelperCallbacks(AsyncFileWriterClient* client, const String& path, WebKit::WebFileSystem* webFileSystem, PassOwnPtr<WebCore::AsyncFileSystemCallbacks> callbacks, WorkerContext* workerContext)
 192         : m_client(client)
 193         , m_path(path)
 194         , m_webFileSystem(webFileSystem)
 195         , m_callbacks(callbacks)
 196         , m_workerContext(workerContext)
 197     {
 198     }
 199
 200     AsyncFileWriterClient* m_client;
 201     String m_path;
 202     WebKit::WebFileSystem* m_webFileSystem;
 203     OwnPtr<WebCore::AsyncFileSystemCallbacks> m_callbacks;
 204     WorkerContext* m_workerContext;
 205 };
 206
 207 void WorkerAsyncFileSystemChromium::createWriter(AsyncFileWriterClient* client, const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 208 {
 209     createWorkerFileSystemCallbacksBridge(WorkerFileWriterHelperCallbacks::create(client, path, m_webFileSystem, callbacks, m_workerContext))->postReadMetadataToMainThread(m_webFileSystem, path, m_modeForCurrentOperation);
 210 }
 211
 212 PassRefPtr<WorkerFileSystemCallbacksBridge> WorkerAsyncFileSystemChromium::createWorkerFileSystemCallbacksBridge(PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 213 {
 214     ASSERT(!m_synchronous || !m_bridgeForCurrentOperation.get());
 215
 216     m_modeForCurrentOperation = fileSystemOperationsMode;
 217     m_modeForCurrentOperation.append(String::number(m_workerContext->thread()->runLoop().createUniqueId()));
 218
 219     m_bridgeForCurrentOperation = WorkerFileSystemCallbacksBridge::create(m_worker, m_scriptExecutionContext, new WebKit::WebFileSystemCallbacksImpl(callbacks));
 220     return m_bridgeForCurrentOperation;
 221 }
 222
 223 } // namespace WebCore
 224
 225 #endif // ENABLE(FILE_SYSTEM)