third_party/WebKit/Source/web/WebDOMFileSystem.cpp

   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 "public/web/WebDOMFileSystem.h"
  33
  34 #include "bindings/core/v8/WrapperTypeInfo.h"
  35 #include "bindings/modules/v8/V8DOMFileSystem.h"
  36 #include "bindings/modules/v8/V8DirectoryEntry.h"
  37 #include "bindings/modules/v8/V8FileEntry.h"
  38 #include "core/dom/Document.h"
  39 #include "modules/filesystem/DOMFileSystem.h"
  40 #include "modules/filesystem/DirectoryEntry.h"
  41 #include "modules/filesystem/FileEntry.h"
  42 #include "web/WebLocalFrameImpl.h"
  43 #include <v8.h>
  44
  45 namespace blink {
  46
  47 WebDOMFileSystem WebDOMFileSystem::fromV8Value(v8::Local<v8::Value> value)
  48 {
  49     if (!V8DOMFileSystem::hasInstance(value, v8::Isolate::GetCurrent()))
  50         return WebDOMFileSystem();
  51     v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(value);
  52     DOMFileSystem* domFileSystem = V8DOMFileSystem::toImpl(object);
  53     ASSERT(domFileSystem);
  54     return WebDOMFileSystem(domFileSystem);
  55 }
  56
  57 WebURL WebDOMFileSystem::createFileSystemURL(v8::Local<v8::Value> value)
  58 {
  59     const Entry* const entry = V8Entry::toImplWithTypeCheck(v8::Isolate::GetCurrent(), value);
  60     if (entry)
  61         return entry->filesystem()->createFileSystemURL(entry);
  62     return WebURL();
  63 }
  64
  65 WebDOMFileSystem WebDOMFileSystem::create(
  66     WebLocalFrame* frame,
  67     WebFileSystemType type,
  68     const WebString& name,
  69     const WebURL& rootURL,
  70     SerializableType serializableType)
  71 {
  72     ASSERT(frame && toWebLocalFrameImpl(frame)->frame());
  73     DOMFileSystem* domFileSystem = DOMFileSystem::create(toWebLocalFrameImpl(frame)->frame()->document(), name, static_cast<FileSystemType>(type), rootURL);
  74     if (serializableType == SerializableTypeSerializable)
  75         domFileSystem->makeClonable();
  76     return WebDOMFileSystem(domFileSystem);
  77 }
  78
  79 void WebDOMFileSystem::reset()
  80 {
  81     m_private.reset();
  82 }
  83
  84 void WebDOMFileSystem::assign(const WebDOMFileSystem& other)
  85 {
  86     m_private = other.m_private;
  87 }
  88
  89 WebString WebDOMFileSystem::name() const
  90 {
  91     ASSERT(m_private.get());
  92     return m_private->name();
  93 }
  94
  95 WebFileSystem::Type WebDOMFileSystem::type() const
  96 {
  97     ASSERT(m_private.get());
  98     switch (m_private->type()) {
  99     case FileSystemTypeTemporary:
 100         return WebFileSystem::TypeTemporary;
 101     case FileSystemTypePersistent:
 102         return WebFileSystem::TypePersistent;
 103     case FileSystemTypeIsolated:
 104         return WebFileSystem::TypeIsolated;
 105     case FileSystemTypeExternal:
 106         return WebFileSystem::TypeExternal;
 107     default:
 108         ASSERT_NOT_REACHED();
 109         return WebFileSystem::TypeTemporary;
 110     }
 111 }
 112
 113 WebURL WebDOMFileSystem::rootURL() const
 114 {
 115     ASSERT(m_private.get());
 116     return m_private->rootURL();
 117 }
 118
 119 v8::Local<v8::Value> WebDOMFileSystem::toV8Value(v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
 120 {
 121     // We no longer use |creationContext| because it's often misused and points
 122     // to a context faked by user script.
 123     ASSERT(creationContext->CreationContext() == isolate->GetCurrentContext());
 124     if (!m_private.get())
 125         return v8::Local<v8::Value>();
 126     return toV8(m_private.get(), isolate->GetCurrentContext()->Global(), isolate);
 127 }
 128
 129 v8::Local<v8::Value> WebDOMFileSystem::createV8Entry(
 130     const WebString& path,
 131     EntryType entryType,
 132     v8::Local<v8::Object> creationContext,
 133     v8::Isolate* isolate)
 134 {
 135     // We no longer use |creationContext| because it's often misused and points
 136     // to a context faked by user script.
 137     ASSERT(creationContext->CreationContext() == isolate->GetCurrentContext());
 138     if (!m_private.get())
 139         return v8::Local<v8::Value>();
 140     if (entryType == EntryTypeDirectory)
 141         return toV8(DirectoryEntry::create(m_private.get(), path), isolate->GetCurrentContext()->Global(), isolate);
 142     ASSERT(entryType == EntryTypeFile);
 143     return toV8(FileEntry::create(m_private.get(), path), isolate->GetCurrentContext()->Global(), isolate);
 144 }
 145
 146 WebDOMFileSystem::WebDOMFileSystem(DOMFileSystem* domFileSystem)
 147     : m_private(domFileSystem)
 148 {
 149 }
 150
 151 WebDOMFileSystem& WebDOMFileSystem::operator=(DOMFileSystem* domFileSystem)
 152 {
 153     m_private = domFileSystem;
 154     return *this;
 155 }
 156
 157 } // namespace blink