blob: 4f09d6803b622653e7a7fc76cf70cbdf23354149 [file] [log] [blame]
/*
* 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 "core/clipboard/DataTransferItem.h"
#include "base/location.h"
#include "bindings/core/v8/V8BindingForCore.h"
#include "bindings/core/v8/v8_function_string_callback.h"
#include "core/clipboard/DataObjectItem.h"
#include "core/clipboard/DataTransfer.h"
#include "core/dom/ExecutionContext.h"
#include "core/probe/CoreProbes.h"
#include "platform/wtf/StdLibExtras.h"
#include "platform/wtf/text/WTFString.h"
#include "public/platform/TaskType.h"
namespace blink {
DataTransferItem* DataTransferItem::Create(DataTransfer* data_transfer,
DataObjectItem* item) {
return new DataTransferItem(data_transfer, item);
}
String DataTransferItem::kind() const {
DEFINE_STATIC_LOCAL(const String, kind_string, ("string"));
DEFINE_STATIC_LOCAL(const String, kind_file, ("file"));
if (!data_transfer_->CanReadTypes())
return String();
switch (item_->Kind()) {
case DataObjectItem::kStringKind:
return kind_string;
case DataObjectItem::kFileKind:
return kind_file;
}
NOTREACHED();
return String();
}
String DataTransferItem::type() const {
if (!data_transfer_->CanReadTypes())
return String();
return item_->GetType();
}
void DataTransferItem::getAsString(ScriptState* script_state,
V8FunctionStringCallback* callback) {
if (!data_transfer_->CanReadData())
return;
if (!callback || item_->Kind() != DataObjectItem::kStringKind)
return;
callbacks_.emplace_back(callback);
ExecutionContext* context = ExecutionContext::From(script_state);
probe::AsyncTaskScheduled(context, "DataTransferItem.getAsString", callback);
context->GetTaskRunner(TaskType::kUserInteraction)
->PostTask(FROM_HERE,
WTF::Bind(&DataTransferItem::RunGetAsStringTask,
WrapPersistent(this), WrapPersistent(context),
WrapPersistent(callback), item_->GetAsString()));
}
File* DataTransferItem::getAsFile() const {
if (!data_transfer_->CanReadData())
return nullptr;
return item_->GetAsFile();
}
DataTransferItem::DataTransferItem(DataTransfer* data_transfer,
DataObjectItem* item)
: data_transfer_(data_transfer), item_(item) {}
void DataTransferItem::RunGetAsStringTask(ExecutionContext* context,
V8FunctionStringCallback* callback,
const String& data) {
DCHECK(callback);
probe::AsyncTask async_task(context, callback);
if (context)
callback->InvokeAndReportException(nullptr, data);
size_t index = callbacks_.Find(callback);
DCHECK(index != kNotFound);
callbacks_.EraseAt(index);
}
void DataTransferItem::Trace(blink::Visitor* visitor) {
visitor->Trace(data_transfer_);
visitor->Trace(item_);
visitor->Trace(callbacks_);
ScriptWrappable::Trace(visitor);
}
void DataTransferItem::TraceWrappers(
const ScriptWrappableVisitor* visitor) const {
for (auto callback : callbacks_)
visitor->TraceWrappers(callback);
ScriptWrappable::TraceWrappers(visitor);
}
} // namespace blink