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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 COMPONENTS_MUS_PUBLIC_CPP_VIEW_TREE_CONNECTION_H_
#define COMPONENTS_MUS_PUBLIC_CPP_VIEW_TREE_CONNECTION_H_
#include <string>
#include "components/mus/public/cpp/types.h"
#include "components/mus/public/interfaces/view_tree.mojom.h"
#include "third_party/mojo/src/mojo/public/cpp/bindings/interface_request.h"
namespace mojo {
class View;
class ViewTreeDelegate;
// Encapsulates a connection to a view tree. A unique connection is made
// every time an app is embedded.
class ViewTreeConnection {
public:
virtual ~ViewTreeConnection() {}
// The returned ViewTreeConnection instance owns itself, and is deleted when
// the last root is destroyed or the connection to the service is broken.
static ViewTreeConnection* Create(ViewTreeDelegate* delegate,
InterfaceRequest<ViewTreeClient> request);
// Returns the root of this connection.
virtual View* GetRoot() = 0;
// Returns a View known to this connection.
virtual View* GetViewById(Id id) = 0;
// Returns the focused view; null if focus is not yet known or another app is
// focused.
virtual View* GetFocusedView() = 0;
// Creates and returns a new View (which is owned by the ViewManager). Views
// are initially hidden, use SetVisible(true) to show.
virtual View* CreateView() = 0;
// Returns true if ACCESS_POLICY_EMBED_ROOT was specified.
virtual bool IsEmbedRoot() = 0;
// Returns the id for this connection.
virtual ConnectionSpecificId GetConnectionId() = 0;
};
} // namespace mojo
#endif // COMPONENTS_MUS_PUBLIC_CPP_VIEW_TREE_CONNECTION_H_
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