blob: c5576f468974be468b22d1f99d847dbacccf4b44 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/strings/string16.h"
namespace ui {
class OSExchangeData;
namespace content {
class WebContents;
// An optional delegate that listens for drags of bookmark data.
class WebDragDestDelegate {
// Announces that a drag has started. It's valid that a drag starts, along
// with over/enter/leave/drop notifications without receiving any bookmark
// data.
virtual void DragInitialize(WebContents* contents) = 0;
// Notifications of drag progression.
virtual void OnDragOver() = 0;
virtual void OnDragEnter() = 0;
virtual void OnDrop() = 0;
// This should also clear any state kept about this drag.
virtual void OnDragLeave() = 0;
#if defined(USE_AURA)
// Called at the start of every drag to supply the data associated with the
// drag.
virtual void OnReceiveDragData(const ui::OSExchangeData& data) = 0;
#endif // USE_AURA
virtual ~WebDragDestDelegate() {}
} // namespace content