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/*
* Copyright (C) 2011 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.
*/
#include "config.h"
#include "core/clipboard/DataObjectItem.h"
#include "core/clipboard/Pasteboard.h"
#include "core/fileapi/Blob.h"
#include "platform/clipboard/ClipboardMimeTypes.h"
#include "public/platform/Platform.h"
#include "public/platform/WebClipboard.h"
namespace WebCore {
PassRefPtrWillBeRawPtr<DataObjectItem> DataObjectItem::createFromString(const String& type, const String& data)
{
RefPtrWillBeRawPtr<DataObjectItem> item = adoptRefWillBeNoop(new DataObjectItem(StringKind, type));
item->m_data = data;
return item.release();
}
PassRefPtrWillBeRawPtr<DataObjectItem> DataObjectItem::createFromFile(PassRefPtrWillBeRawPtr<File> file)
{
RefPtrWillBeRawPtr<DataObjectItem> item = adoptRefWillBeNoop(new DataObjectItem(FileKind, file->type()));
item->m_file = file;
return item.release();
}
PassRefPtrWillBeRawPtr<DataObjectItem> DataObjectItem::createFromURL(const String& url, const String& title)
{
RefPtrWillBeRawPtr<DataObjectItem> item = adoptRefWillBeNoop(new DataObjectItem(StringKind, mimeTypeTextURIList));
item->m_data = url;
item->m_title = title;
return item.release();
}
PassRefPtrWillBeRawPtr<DataObjectItem> DataObjectItem::createFromHTML(const String& html, const KURL& baseURL)
{
RefPtrWillBeRawPtr<DataObjectItem> item = adoptRefWillBeNoop(new DataObjectItem(StringKind, mimeTypeTextHTML));
item->m_data = html;
item->m_baseURL = baseURL;
return item.release();
}
PassRefPtrWillBeRawPtr<DataObjectItem> DataObjectItem::createFromSharedBuffer(const String& name, PassRefPtr<SharedBuffer> buffer)
{
RefPtrWillBeRawPtr<DataObjectItem> item = adoptRefWillBeNoop(new DataObjectItem(FileKind, String()));
item->m_sharedBuffer = buffer;
item->m_title = name;
return item.release();
}
PassRefPtrWillBeRawPtr<DataObjectItem> DataObjectItem::createFromPasteboard(const String& type, uint64_t sequenceNumber)
{
if (type == mimeTypeImagePng)
return adoptRefWillBeNoop(new DataObjectItem(FileKind, type, sequenceNumber));
return adoptRefWillBeNoop(new DataObjectItem(StringKind, type, sequenceNumber));
}
DataObjectItem::DataObjectItem(Kind kind, const String& type)
: m_source(InternalSource)
, m_kind(kind)
, m_type(type)
, m_sequenceNumber(0)
{
}
DataObjectItem::DataObjectItem(Kind kind, const String& type, uint64_t sequenceNumber)
: m_source(PasteboardSource)
, m_kind(kind)
, m_type(type)
, m_sequenceNumber(sequenceNumber)
{
}
PassRefPtrWillBeRawPtr<Blob> DataObjectItem::getAsFile() const
{
if (kind() != FileKind)
return nullptr;
if (m_source == InternalSource) {
if (m_file)
return m_file.get();
ASSERT(m_sharedBuffer);
// FIXME: This code is currently impossible--we never populate m_sharedBuffer when dragging
// in. At some point though, we may need to support correctly converting a shared buffer
// into a file.
return nullptr;
}
ASSERT(m_source == PasteboardSource);
if (type() == mimeTypeImagePng) {
// FIXME: This is pretty inefficient. We copy the data from the browser
// to the renderer. We then place it in a blob in WebKit, which
// registers it and copies it *back* to the browser. When a consumer
// wants to read the data, we then copy the data back into the renderer.
// https://bugs.webkit.org/show_bug.cgi?id=58107 has been filed to track
// improvements to this code (in particular, add a registerClipboardBlob
// method to the blob registry; that way the data is only copied over
// into the renderer when it's actually read, not when the blob is
// initially constructed).
RefPtr<SharedBuffer> data = static_cast<PassRefPtr<SharedBuffer> >(blink::Platform::current()->clipboard()->readImage(blink::WebClipboard::BufferStandard));
RefPtr<RawData> rawData = RawData::create();
rawData->mutableData()->append(data->data(), data->size());
OwnPtr<BlobData> blobData = BlobData::create();
blobData->appendData(rawData, 0, -1);
blobData->setContentType(mimeTypeImagePng);
return Blob::create(BlobDataHandle::create(blobData.release(), data->size()));
}
return nullptr;
}
String DataObjectItem::getAsString() const
{
ASSERT(m_kind == StringKind);
if (m_source == InternalSource)
return m_data;
ASSERT(m_source == PasteboardSource);
blink::WebClipboard::Buffer buffer = Pasteboard::generalPasteboard()->buffer();
String data;
// This is ugly but there's no real alternative.
if (m_type == mimeTypeTextPlain) {
data = blink::Platform::current()->clipboard()->readPlainText(buffer);
} else if (m_type == mimeTypeTextHTML) {
blink::WebURL ignoredSourceURL;
unsigned ignored;
data = blink::Platform::current()->clipboard()->readHTML(buffer, &ignoredSourceURL, &ignored, &ignored);
} else {
data = blink::Platform::current()->clipboard()->readCustomData(buffer, m_type);
}
return blink::Platform::current()->clipboard()->sequenceNumber(buffer) == m_sequenceNumber ? data : String();
}
bool DataObjectItem::isFilename() const
{
// FIXME: https://bugs.webkit.org/show_bug.cgi?id=81261: When we properly support File dragout,
// we'll need to make sure this works as expected for DragDataChromium.
return m_kind == FileKind && m_file;
}
void DataObjectItem::trace(Visitor* visitor)
{
visitor->trace(m_file);
}
} // namespace WebCore
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