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      1 /*
      2  * Copyright (C) 2013 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 #include "config.h"
     32 #include "LocalFileSystemClient.h"
     33 
     34 #include "WebFileSystemCallbacksImpl.h"
     35 #include "WebFrameImpl.h"
     36 #include "WebViewImpl.h"
     37 #include "core/dom/Document.h"
     38 #include "core/platform/AsyncFileSystemCallbacks.h"
     39 #include "public/platform/WebFileError.h"
     40 #include "public/platform/WebFileSystem.h"
     41 #include "public/platform/WebFileSystemType.h"
     42 #include "public/web/WebFrameClient.h"
     43 #include "public/web/WebPermissionClient.h"
     44 #include "wtf/text/WTFString.h"
     45 
     46 using namespace WebCore;
     47 
     48 namespace WebKit {
     49 
     50 PassOwnPtr<FileSystemClient> LocalFileSystemClient::create()
     51 {
     52     return adoptPtr(static_cast<FileSystemClient*>(new LocalFileSystemClient()));
     53 }
     54 
     55 LocalFileSystemClient::~LocalFileSystemClient()
     56 {
     57 }
     58 
     59 bool LocalFileSystemClient::allowFileSystem(ScriptExecutionContext* context)
     60 {
     61     Document* document = toDocument(context);
     62     WebFrameImpl* webFrame = WebFrameImpl::fromFrame(document->frame());
     63     WebKit::WebViewImpl* webView = webFrame->viewImpl();
     64 
     65     return !webView->permissionClient() || webView->permissionClient()->allowFileSystem(webFrame);
     66 }
     67 
     68 void LocalFileSystemClient::openFileSystem(ScriptExecutionContext* context, WebCore::FileSystemType type, PassOwnPtr<AsyncFileSystemCallbacks> callbacks, FileSystemSynchronousType, long long size, OpenFileSystemMode openMode)
     69 {
     70     Document* document = toDocument(context);
     71     WebFrameImpl* webFrame = WebFrameImpl::fromFrame(document->frame());
     72 
     73     webFrame->client()->openFileSystem(webFrame, static_cast<WebFileSystemType>(type), size, openMode == CreateFileSystemIfNotPresent, new WebFileSystemCallbacksImpl(callbacks));
     74 }
     75 
     76 void LocalFileSystemClient::deleteFileSystem(ScriptExecutionContext* context, WebCore::FileSystemType type, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
     77 {
     78     Document* document = toDocument(context);
     79     WebFrameImpl* webFrame = WebFrameImpl::fromFrame(document->frame());
     80 
     81     webFrame->client()->deleteFileSystem(webFrame, static_cast<WebFileSystemType>(type), new WebFileSystemCallbacksImpl(callbacks));
     82 }
     83 
     84 LocalFileSystemClient::LocalFileSystemClient()
     85 {
     86 }
     87 
     88 } // namespace WebKit
     89