mojo/services/view_manager/server_view.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MOJO_SERVICES_VIEW_MANAGER_SERVER_VIEW_H_
   6 #define MOJO_SERVICES_VIEW_MANAGER_SERVER_VIEW_H_
   7
   8 #include <vector>
   9
  10 #include "base/logging.h"
  11 #include "mojo/services/public/interfaces/view_manager/view_manager.mojom.h"
  12 #include "mojo/services/view_manager/ids.h"
  13 #include "mojo/services/view_manager/view_manager_export.h"
  14 #include "third_party/skia/include/core/SkBitmap.h"
  15 #include "ui/gfx/geometry/rect.h"
  16
  17 namespace mojo {
  18 namespace service {
  19
  20 class ServerViewDelegate;
  21
  22 // Server side representation of a view. Delegate is informed of interesting
  23 // events.
  24 //
  25 // It is assumed that all functions that mutate the tree have validated the
  26 // mutation is possible before hand. For example, Reorder() assumes the supplied
  27 // view is a child and not already in position.
  28 class MOJO_VIEW_MANAGER_EXPORT ServerView {
  29  public:
  30   ServerView(ServerViewDelegate* delegate, const ViewId& id);
  31   virtual ~ServerView();
  32
  33   const ViewId& id() const { return id_; }
  34
  35   void Add(ServerView* child);
  36   void Remove(ServerView* child);
  37   void Reorder(ServerView* child,
  38                ServerView* relative,
  39                OrderDirection direction);
  40
  41   const gfx::Rect& bounds() const { return bounds_; }
  42   void SetBounds(const gfx::Rect& bounds);
  43
  44   const ServerView* parent() const { return parent_; }
  45   ServerView* parent() { return parent_; }
  46
  47   const ServerView* GetRoot() const;
  48   ServerView* GetRoot() {
  49     return const_cast<ServerView*>(
  50         const_cast<const ServerView*>(this)->GetRoot());
  51   }
  52
  53   std::vector<const ServerView*> GetChildren() const;
  54   std::vector<ServerView*> GetChildren();
  55
  56   bool Contains(const ServerView* view) const;
  57
  58   // Returns true if the window is visible. This does not consider visibility
  59   // of any ancestors.
  60   bool visible() const { return visible_; }
  61   void SetVisible(bool value);
  62
  63   void SetBitmap(const SkBitmap& contents);
  64   const SkBitmap& bitmap() const { return bitmap_; }
  65
  66  private:
  67   typedef std::vector<ServerView*> Views;
  68
  69   // Implementation of removing a view. Doesn't send any notification.
  70   void RemoveImpl(ServerView* view);
  71
  72   ServerViewDelegate* delegate_;
  73   const ViewId id_;
  74   ServerView* parent_;
  75   Views children_;
  76   bool visible_;
  77   gfx::Rect bounds_;
  78   SkBitmap bitmap_;
  79
  80   DISALLOW_COPY_AND_ASSIGN(ServerView);
  81 };
  82
  83 }  // namespace service
  84 }  // namespace mojo
  85
  86 #endif  // MOJO_SERVICES_VIEW_MANAGER_SERVER_VIEW_H_