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_PUBLIC_CPP_VIEW_MANAGER_VIEW_H_ 6 #define MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_H_ 7 8 #include <vector> 9 10 #include "base/basictypes.h" 11 #include "base/observer_list.h" 12 #include "mojo/public/cpp/bindings/array.h" 13 #include "mojo/public/interfaces/application/service_provider.mojom.h" 14 #include "mojo/services/public/cpp/view_manager/types.h" 15 #include "mojo/services/public/interfaces/surfaces/surface_id.mojom.h" 16 #include "mojo/services/public/interfaces/view_manager/view_manager_constants.mojom.h" 17 #include "third_party/skia/include/core/SkColor.h" 18 #include "ui/gfx/geometry/rect.h" 19 20 class SkBitmap; 21 22 namespace mojo { 23 24 class BitmapUploader; 25 class ServiceProviderImpl; 26 class View; 27 class ViewManager; 28 class ViewObserver; 29 30 // Views are owned by the ViewManager. 31 // TODO(beng): Right now, you'll have to implement a ViewObserver to track 32 // destruction and NULL any pointers you have. 33 // Investigate some kind of smart pointer or weak pointer for these. 34 class View { 35 public: 36 typedef std::vector<View*> Children; 37 38 static View* Create(ViewManager* view_manager); 39 40 // Destroys this view and all its children. 41 void Destroy(); 42 43 ViewManager* view_manager() { return manager_; } 44 45 // Configuration. 46 Id id() const { return id_; } 47 48 // Geometric disposition. 49 const gfx::Rect& bounds() { return bounds_; } 50 void SetBounds(const gfx::Rect& bounds); 51 52 // Visibility. 53 void SetVisible(bool value); 54 // TODO(sky): add accessor. 55 56 // Observation. 57 void AddObserver(ViewObserver* observer); 58 void RemoveObserver(ViewObserver* observer); 59 60 // Tree. 61 View* parent() { return parent_; } 62 const View* parent() const { return parent_; } 63 const Children& children() const { return children_; } 64 65 void AddChild(View* child); 66 void RemoveChild(View* child); 67 68 void Reorder(View* relative, OrderDirection direction); 69 void MoveToFront(); 70 void MoveToBack(); 71 72 bool Contains(View* child) const; 73 74 View* GetChildById(Id id); 75 76 void SetSurfaceId(SurfaceIdPtr id); 77 78 // TODO(beng): temporary only. 79 void SetContents(const SkBitmap& contents); 80 void SetColor(SkColor color); 81 82 // Focus. 83 void SetFocus(); 84 85 // Embedding. 86 void Embed(const String& url); 87 scoped_ptr<ServiceProvider> Embed( 88 const String& url, 89 scoped_ptr<ServiceProviderImpl> exported_services); 90 91 protected: 92 // This class is subclassed only by test classes that provide a public ctor. 93 View(); 94 ~View(); 95 96 private: 97 friend class ViewPrivate; 98 friend class ViewManagerClientImpl; 99 100 explicit View(ViewManager* manager); 101 102 void LocalDestroy(); 103 void LocalAddChild(View* child); 104 void LocalRemoveChild(View* child); 105 // Returns true if the order actually changed. 106 bool LocalReorder(View* relative, OrderDirection direction); 107 void LocalSetBounds(const gfx::Rect& old_bounds, const gfx::Rect& new_bounds); 108 void CreateBitmapUploader(); 109 110 ViewManager* manager_; 111 Id id_; 112 View* parent_; 113 Children children_; 114 115 ObserverList<ViewObserver> observers_; 116 117 gfx::Rect bounds_; 118 // TODO(jamesr): Temporary, remove when all clients are using surfaces 119 // directly. 120 scoped_ptr<BitmapUploader> bitmap_uploader_; 121 122 DISALLOW_COPY_AND_ASSIGN(View); 123 }; 124 125 } // namespace mojo 126 127 #endif // MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_H_ 128