| OLD | NEW |
|---|
| (Empty) |
| 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_PUBLIC_CPP_VIEW_OBSERVER_H_ | |
| 6 #define MOJO_SERVICES_VIEW_MANAGER_PUBLIC_CPP_VIEW_OBSERVER_H_ | |
| 7 | |
| 8 #include <vector> | |
| 9 | |
| 10 #include "input_events/interfaces/input_events.mojom.h" | |
| 11 #include "view_manager/public/cpp/view.h" | |
| 12 | |
| 13 namespace mojo { | |
| 14 | |
| 15 class View; | |
| 16 | |
| 17 // A note on -ing and -ed suffixes: | |
| 18 // | |
| 19 // -ing methods are called before changes are applied to the local view model. | |
| 20 // -ed methods are called after changes are applied to the local view model. | |
| 21 // | |
| 22 // If the change originated from another connection to the view manager, it's | |
| 23 // possible that the change has already been applied to the service-side model | |
| 24 // prior to being called, so for example in the case of OnViewDestroying(), it's | |
| 25 // possible the view has already been destroyed on the service side. | |
| 26 | |
| 27 class ViewObserver { | |
| 28 public: | |
| 29 struct TreeChangeParams { | |
| 30 TreeChangeParams(); | |
| 31 View* target; | |
| 32 View* old_parent; | |
| 33 View* new_parent; | |
| 34 View* receiver; | |
| 35 }; | |
| 36 | |
| 37 virtual void OnTreeChanging(const TreeChangeParams& params) {} | |
| 38 virtual void OnTreeChanged(const TreeChangeParams& params) {} | |
| 39 | |
| 40 virtual void OnViewReordering(View* view, | |
| 41 View* relative_view, | |
| 42 OrderDirection direction) {} | |
| 43 virtual void OnViewReordered(View* view, | |
| 44 View* relative_view, | |
| 45 OrderDirection direction) {} | |
| 46 | |
| 47 virtual void OnViewDestroying(View* view) {} | |
| 48 virtual void OnViewDestroyed(View* view) {} | |
| 49 | |
| 50 virtual void OnViewBoundsChanging(View* view, | |
| 51 const Rect& old_bounds, | |
| 52 const Rect& new_bounds) {} | |
| 53 virtual void OnViewBoundsChanged(View* view, | |
| 54 const Rect& old_bounds, | |
| 55 const Rect& new_bounds) {} | |
| 56 | |
| 57 virtual void OnViewViewportMetricsChanged(View* view, | |
| 58 const ViewportMetrics& old_bounds, | |
| 59 const ViewportMetrics& new_bounds) { | |
| 60 } | |
| 61 | |
| 62 virtual void OnViewCaptureChanged(View* gained_capture, View* lost_capture) {} | |
| 63 virtual void OnViewFocusChanged(View* gained_focus, View* lost_focus) {} | |
| 64 virtual void OnViewActivationChanged(View* gained_active, View* lost_active) { | |
| 65 } | |
| 66 | |
| 67 virtual void OnViewInputEvent(View* view, const EventPtr& event) {} | |
| 68 | |
| 69 virtual void OnViewVisibilityChanging(View* view) {} | |
| 70 virtual void OnViewVisibilityChanged(View* view) {} | |
| 71 | |
| 72 // Invoked when this View's shared properties have changed. This can either | |
| 73 // be caused by SetSharedProperty() being called locally, or by us receiving | |
| 74 // a mojo message that this property has changed. If this property has been | |
| 75 // added, |old_data| is null. If this property was removed, |new_data| is | |
| 76 // null. | |
| 77 virtual void OnViewSharedPropertyChanged( | |
| 78 View* view, | |
| 79 const std::string& name, | |
| 80 const std::vector<uint8_t>* old_data, | |
| 81 const std::vector<uint8_t>* new_data) {} | |
| 82 | |
| 83 // Invoked when SetProperty() or ClearProperty() is called on the window. | |
| 84 // |key| is either a WindowProperty<T>* (SetProperty, ClearProperty). Either | |
| 85 // way, it can simply be compared for equality with the property | |
| 86 // constant. |old| is the old property value, which must be cast to the | |
| 87 // appropriate type before use. | |
| 88 virtual void OnViewLocalPropertyChanged( | |
| 89 View* view, | |
| 90 const void* key, | |
| 91 intptr_t old) {} | |
| 92 | |
| 93 virtual void OnViewEmbeddedAppDisconnected(View* view) {} | |
| 94 | |
| 95 // Sent when the drawn state changes. This is only sent for the root nodes | |
| 96 // when embedded. | |
| 97 virtual void OnViewDrawnChanging(View* view) {} | |
| 98 virtual void OnViewDrawnChanged(View* view) {} | |
| 99 | |
| 100 protected: | |
| 101 virtual ~ViewObserver() {} | |
| 102 }; | |
| 103 | |
| 104 } // namespace mojo | |
| 105 | |
| 106 #endif // MOJO_SERVICES_VIEW_MANAGER_PUBLIC_CPP_VIEW_OBSERVER_H_ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1391243003:
Move //mojo/services/X/public/... to //mojo/services/X/... (part 4). (Closed)
Base URL: https://github.com/domokit/mojo.git@no_public_3-x-no_public_2-x-no_public_1