blob: 8daf0caa8950e584648555ac1ae0960dcb41d23a [file] [log] [blame]
/*
* Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
* Copyright (C) 2008, 2009 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 "core/clipboard/DataTransferItemList.h"
#include "bindings/core/v8/ExceptionState.h"
#include "core/clipboard/DataObject.h"
#include "core/clipboard/DataTransfer.h"
#include "core/clipboard/DataTransferItem.h"
#include "core/dom/ExceptionCode.h"
namespace blink {
DataTransferItemList* DataTransferItemList::Create(DataTransfer* data_transfer,
DataObject* list) {
return new DataTransferItemList(data_transfer, list);
}
size_t DataTransferItemList::length() const {
if (!data_transfer_->CanReadTypes())
return 0;
return data_object_->length();
}
DataTransferItem* DataTransferItemList::item(unsigned long index) {
if (!data_transfer_->CanReadTypes())
return nullptr;
DataObjectItem* item = data_object_->Item(index);
if (!item)
return nullptr;
return DataTransferItem::Create(data_transfer_, item);
}
void DataTransferItemList::deleteItem(unsigned long index,
ExceptionState& exception_state) {
if (!data_transfer_->CanWriteData()) {
exception_state.ThrowDOMException(kInvalidStateError,
"The list is not writable.");
return;
}
data_object_->DeleteItem(index);
}
void DataTransferItemList::clear() {
if (!data_transfer_->CanWriteData())
return;
data_object_->ClearAll();
}
DataTransferItem* DataTransferItemList::add(const String& data,
const String& type,
ExceptionState& exception_state) {
if (!data_transfer_->CanWriteData())
return nullptr;
DataObjectItem* item = data_object_->Add(data, type);
if (!item) {
exception_state.ThrowDOMException(
kNotSupportedError, "An item already exists for type '" + type + "'.");
return nullptr;
}
return DataTransferItem::Create(data_transfer_, item);
}
DataTransferItem* DataTransferItemList::add(File* file) {
if (!data_transfer_->CanWriteData())
return nullptr;
DataObjectItem* item = data_object_->Add(file);
if (!item)
return nullptr;
return DataTransferItem::Create(data_transfer_, item);
}
DataTransferItemList::DataTransferItemList(DataTransfer* data_transfer,
DataObject* data_object)
: data_transfer_(data_transfer), data_object_(data_object) {}
void DataTransferItemList::Trace(blink::Visitor* visitor) {
visitor->Trace(data_transfer_);
visitor->Trace(data_object_);
ScriptWrappable::Trace(visitor);
}
} // namespace blink