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// Copyright 2014 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.
#ifndef MOJO_SERVICES_VIEW_MANAGER_NODE_DELEGATE_H_
#define MOJO_SERVICES_VIEW_MANAGER_NODE_DELEGATE_H_
#include "mojo/services/view_manager/view_manager_export.h"
namespace gfx {
class Rect;
}
namespace mojo {
namespace service {
class Node;
class MOJO_VIEW_MANAGER_EXPORT NodeDelegate {
public:
// Invoked at the end of the Node's destructor (after it has been removed from
// the hierarchy and its active view has been reset).
virtual void OnNodeDestroyed(const Node* node) = 0;
// Invoked when the hierarchy has changed.
virtual void OnNodeHierarchyChanged(const Node* node,
const Node* new_parent,
const Node* old_parent) = 0;
virtual void OnNodeBoundsChanged(const Node* node,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) = 0;
protected:
virtual ~NodeDelegate() {}
};
} // namespace service
} // namespace mojo
#endif // MOJO_SERVICES_VIEW_MANAGER_NODE_DELEGATE_H_
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