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mojo/services/view_manager/server_view_delegate.h

+// 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 SERVICES_VIEW_MANAGER_SERVER_VIEW_DELEGATE_H_
+#define SERVICES_VIEW_MANAGER_SERVER_VIEW_DELEGATE_H_
+
+#include "third_party/mojo_services/src/view_manager/public/interfaces/view_manager_constants.mojom.h"
+
+namespace gfx {
+class Rect;
+}
+
+namespace mojo {
+class ViewportMetrics;
+}
+
+namespace view_manager {
+
+class ServerView;
+
+class ServerViewDelegate {
+ public:
+  // Invoked when a view is about to be destroyed; before any of the children
+  // have been removed and before the view has been removed from its parent.
+  virtual void OnWillDestroyView(ServerView* view) = 0;
+
+  // Invoked at the end of the View's destructor (after it has been removed from
+  // the hierarchy).
+  virtual void OnViewDestroyed(const ServerView* view) = 0;
+
+  virtual void OnWillChangeViewHierarchy(ServerView* view,
+                                         ServerView* new_parent,
+                                         ServerView* old_parent) = 0;
+
+  virtual void OnViewHierarchyChanged(const ServerView* view,
+                                      const ServerView* new_parent,
+                                      const ServerView* old_parent) = 0;
+
+  virtual void OnViewBoundsChanged(const ServerView* view,
+                                   const gfx::Rect& old_bounds,
+                                   const gfx::Rect& new_bounds) = 0;
+
+  virtual void OnViewSurfaceIdChanged(const ServerView* view) = 0;
+
+  virtual void OnViewReordered(const ServerView* view,
+                               const ServerView* relative,
+                               mojo::OrderDirection direction) = 0;
+
+  virtual void OnWillChangeViewVisibility(ServerView* view) = 0;
+
+  virtual void OnViewSharedPropertyChanged(
+      const ServerView* view,
+      const std::string& name,
+      const std::vector<uint8_t>* new_data) = 0;
+
+  virtual void OnScheduleViewPaint(const ServerView* view) = 0;
+
+ protected:
+  virtual ~ServerViewDelegate() {}
+};
+
+}  // namespace view_manager
+
+#endif  // SERVICES_VIEW_MANAGER_SERVER_VIEW_DELEGATE_H_