code.vuplus.com Git - vuplus_webkit/blob - Source/WebKit/chromium/src/WorkerAsyncFileSystemChromium.cpp

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   3  *
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   6  * met:
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   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.
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  16  * this software without specific prior written permission.
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  30
  31 #include "config.h"
  32 #include "WorkerAsyncFileSystemChromium.h"
  33
  34 #if ENABLE(FILE_SYSTEM) && ENABLE(WORKERS)
  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 "WebKitPlatformSupport.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 WebKit::WebURL& rootURL, bool synchronous)
  60     : AsyncFileSystem(type)
  61     , m_scriptExecutionContext(context)
  62     , m_webFileSystem(webKitPlatformSupport()->fileSystem())
  63     , m_workerContext(static_cast<WorkerContext*>(context))
  64     , m_synchronous(synchronous)
  65     , m_filesystemRootURL(rootURL)
  66 {
  67     ASSERT(m_webFileSystem);
  68     ASSERT(m_scriptExecutionContext->isWorkerContext());
  69
  70     WorkerLoaderProxy* workerLoaderProxy = &m_workerContext->thread()->workerLoaderProxy();
  71     m_worker = static_cast<WebWorkerBase*>(workerLoaderProxy);
  72 }
  73
  74 WorkerAsyncFileSystemChromium::~WorkerAsyncFileSystemChromium()
  75 {
  76 }
  77
  78 bool WorkerAsyncFileSystemChromium::waitForOperationToComplete()
  79 {
  80     if (!m_bridgeForCurrentOperation.get())
  81         return false;
  82
  83     RefPtr<WorkerFileSystemCallbacksBridge> bridge = m_bridgeForCurrentOperation.release();
  84     if (m_workerContext->thread()->runLoop().runInMode(m_workerContext, m_modeForCurrentOperation) == MessageQueueTerminated) {
  85         bridge->stop();
  86         return false;
  87     }
  88     return true;
  89 }
  90
  91 void WorkerAsyncFileSystemChromium::move(const String& sourcePath, const String& destinationPath, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
  92 {
  93     createWorkerFileSystemCallbacksBridge(callbacks)->postMoveToMainThread(m_webFileSystem, virtualPathToFileSystemURL(sourcePath), virtualPathToFileSystemURL(destinationPath), m_modeForCurrentOperation);
  94 }
  95
  96 void WorkerAsyncFileSystemChromium::copy(const String& sourcePath, const String& destinationPath, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
  97 {
  98     createWorkerFileSystemCallbacksBridge(callbacks)->postCopyToMainThread(m_webFileSystem, virtualPathToFileSystemURL(sourcePath), virtualPathToFileSystemURL(destinationPath), m_modeForCurrentOperation);
  99 }
 100
 101 void WorkerAsyncFileSystemChromium::remove(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 102 {
 103     createWorkerFileSystemCallbacksBridge(callbacks)->postRemoveToMainThread(m_webFileSystem, virtualPathToFileSystemURL(path), m_modeForCurrentOperation);
 104 }
 105
 106 void WorkerAsyncFileSystemChromium::removeRecursively(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 107 {
 108     createWorkerFileSystemCallbacksBridge(callbacks)->postRemoveRecursivelyToMainThread(m_webFileSystem, virtualPathToFileSystemURL(path), m_modeForCurrentOperation);
 109 }
 110
 111 void WorkerAsyncFileSystemChromium::readMetadata(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 112 {
 113     createWorkerFileSystemCallbacksBridge(callbacks)->postReadMetadataToMainThread(m_webFileSystem, virtualPathToFileSystemURL(path), m_modeForCurrentOperation);
 114 }
 115
 116 void WorkerAsyncFileSystemChromium::createFile(const String& path, bool exclusive, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 117 {
 118     createWorkerFileSystemCallbacksBridge(callbacks)->postCreateFileToMainThread(m_webFileSystem, virtualPathToFileSystemURL(path), exclusive, m_modeForCurrentOperation);
 119 }
 120
 121 void WorkerAsyncFileSystemChromium::createDirectory(const String& path, bool exclusive, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 122 {
 123     createWorkerFileSystemCallbacksBridge(callbacks)->postCreateDirectoryToMainThread(m_webFileSystem, virtualPathToFileSystemURL(path), exclusive, m_modeForCurrentOperation);
 124 }
 125
 126 void WorkerAsyncFileSystemChromium::fileExists(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 127 {
 128     createWorkerFileSystemCallbacksBridge(callbacks)->postFileExistsToMainThread(m_webFileSystem, virtualPathToFileSystemURL(path), m_modeForCurrentOperation);
 129 }
 130
 131 void WorkerAsyncFileSystemChromium::directoryExists(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 132 {
 133     createWorkerFileSystemCallbacksBridge(callbacks)->postDirectoryExistsToMainThread(m_webFileSystem, virtualPathToFileSystemURL(path), m_modeForCurrentOperation);
 134 }
 135
 136 void WorkerAsyncFileSystemChromium::readDirectory(const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 137 {
 138     createWorkerFileSystemCallbacksBridge(callbacks)->postReadDirectoryToMainThread(m_webFileSystem, virtualPathToFileSystemURL(path), m_modeForCurrentOperation);
 139 }
 140
 141 class WorkerFileWriterHelperCallbacks : public AsyncFileSystemCallbacks {
 142 public:
 143     static PassOwnPtr<WorkerFileWriterHelperCallbacks> create(AsyncFileWriterClient* client, const WebURL& path, WebKit::WebFileSystem* webFileSystem, PassOwnPtr<WebCore::AsyncFileSystemCallbacks> callbacks, WorkerContext* workerContext)
 144     {
 145         return adoptPtr(new WorkerFileWriterHelperCallbacks(client, path, webFileSystem, callbacks, workerContext));
 146     }
 147
 148     virtual void didSucceed()
 149     {
 150         ASSERT_NOT_REACHED();
 151     }
 152
 153     virtual void didReadMetadata(const FileMetadata& metadata)
 154     {
 155         ASSERT(m_callbacks);
 156         if (metadata.type != FileMetadata::TypeFile || metadata.length < 0)
 157             m_callbacks->didFail(WebKit::WebFileErrorInvalidState);
 158         else {
 159             OwnPtr<WorkerAsyncFileWriterChromium> asyncFileWriterChromium = WorkerAsyncFileWriterChromium::create(m_webFileSystem, m_path, m_workerContext, m_client, WorkerAsyncFileWriterChromium::Asynchronous);
 160             m_callbacks->didCreateFileWriter(asyncFileWriterChromium.release(), metadata.length);
 161         }
 162     }
 163
 164     virtual void didReadDirectoryEntry(const String& name, bool isDirectory)
 165     {
 166         ASSERT_NOT_REACHED();
 167     }
 168
 169     virtual void didReadDirectoryEntries(bool hasMore)
 170     {
 171         ASSERT_NOT_REACHED();
 172     }
 173
 174     virtual void didOpenFileSystem(const String&, PassOwnPtr<AsyncFileSystem>)
 175     {
 176         ASSERT_NOT_REACHED();
 177     }
 178
 179     // Called when an AsyncFileWrter has been created successfully.
 180     virtual void didCreateFileWriter(PassOwnPtr<AsyncFileWriter>, long long)
 181     {
 182         ASSERT_NOT_REACHED();
 183     }
 184
 185     virtual void didFail(int code)
 186     {
 187         ASSERT(m_callbacks);
 188         m_callbacks->didFail(code);
 189     }
 190
 191 private:
 192     WorkerFileWriterHelperCallbacks(AsyncFileWriterClient* client, const WebURL& path, WebKit::WebFileSystem* webFileSystem, PassOwnPtr<WebCore::AsyncFileSystemCallbacks> callbacks, WorkerContext* workerContext)
 193         : m_client(client)
 194         , m_path(path)
 195         , m_webFileSystem(webFileSystem)
 196         , m_callbacks(callbacks)
 197         , m_workerContext(workerContext)
 198     {
 199     }
 200
 201     AsyncFileWriterClient* m_client;
 202     WebURL m_path;
 203     WebKit::WebFileSystem* m_webFileSystem;
 204     OwnPtr<WebCore::AsyncFileSystemCallbacks> m_callbacks;
 205     WorkerContext* m_workerContext;
 206 };
 207
 208 void WorkerAsyncFileSystemChromium::createWriter(AsyncFileWriterClient* client, const String& path, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 209 {
 210     KURL pathAsURL = virtualPathToFileSystemURL(path);
 211     createWorkerFileSystemCallbacksBridge(WorkerFileWriterHelperCallbacks::create(client, pathAsURL, m_webFileSystem, callbacks, m_workerContext))->postReadMetadataToMainThread(m_webFileSystem, pathAsURL, m_modeForCurrentOperation);
 212 }
 213
 214 PassRefPtr<WorkerFileSystemCallbacksBridge> WorkerAsyncFileSystemChromium::createWorkerFileSystemCallbacksBridge(PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 215 {
 216     ASSERT(!m_synchronous || !m_bridgeForCurrentOperation.get());
 217
 218     m_modeForCurrentOperation = fileSystemOperationsMode;
 219     m_modeForCurrentOperation.append(String::number(m_workerContext->thread()->runLoop().createUniqueId()));
 220
 221     m_bridgeForCurrentOperation = WorkerFileSystemCallbacksBridge::create(m_worker, m_scriptExecutionContext, new WebKit::WebFileSystemCallbacksImpl(callbacks));
 222     return m_bridgeForCurrentOperation;
 223 }
 224
 225 KURL WorkerAsyncFileSystemChromium::virtualPathToFileSystemURL(const String& virtualPath) const
 226 {
 227     ASSERT(!m_filesystemRootURL.isEmpty());
 228     KURL url = m_filesystemRootURL;
 229     // Remove the extra leading slash.
 230     url.setPath(url.path() + encodeWithURLEscapeSequences(virtualPath.substring(1)));
 231     return url;
 232 }
 233
 234 } // namespace WebCore
 235
 236 #endif // ENABLE(FILE_SYSTEM)