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| 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 SERVICES_VIEW_MANAGER_SCHEDULED_ANIMATION_GROUP_H_ |
| 6 #define SERVICES_VIEW_MANAGER_SCHEDULED_ANIMATION_GROUP_H_ |
| 7 |
| 8 #include <vector> |
| 9 |
| 10 #include "base/memory/scoped_ptr.h" |
| 11 #include "base/time/time.h" |
| 12 #include "third_party/mojo_services/src/view_manager/public/interfaces/animation
s.mojom.h" |
| 13 #include "ui/gfx/animation/tween.h" |
| 14 #include "ui/gfx/transform.h" |
| 15 |
| 16 namespace view_manager { |
| 17 |
| 18 class ServerView; |
| 19 |
| 20 struct ScheduledAnimationValue { |
| 21 ScheduledAnimationValue(); |
| 22 ~ScheduledAnimationValue(); |
| 23 |
| 24 float float_value; |
| 25 gfx::Transform transform; |
| 26 }; |
| 27 |
| 28 struct ScheduledAnimationElement { |
| 29 ScheduledAnimationElement(); |
| 30 ~ScheduledAnimationElement(); |
| 31 |
| 32 mojo::AnimationProperty property; |
| 33 base::TimeDelta duration; |
| 34 gfx::Tween::Type tween_type; |
| 35 bool is_start_valid; |
| 36 ScheduledAnimationValue start_value; |
| 37 ScheduledAnimationValue target_value; |
| 38 // Start time is based on scheduled time and relative to any other elements |
| 39 // in the sequence. |
| 40 base::TimeTicks start_time; |
| 41 }; |
| 42 |
| 43 struct ScheduledAnimationSequence { |
| 44 ScheduledAnimationSequence(); |
| 45 ~ScheduledAnimationSequence(); |
| 46 |
| 47 bool run_until_stopped; |
| 48 std::vector<ScheduledAnimationElement> elements; |
| 49 |
| 50 // Sum of the duration of all elements. This does not take into account |
| 51 // |cycle_count|. |
| 52 base::TimeDelta duration; |
| 53 |
| 54 // The following values are updated as the animation progresses. |
| 55 |
| 56 // Number of cycles remaining. This is only used if |run_until_stopped| is |
| 57 // false. |
| 58 uint32_t cycle_count; |
| 59 |
| 60 // Index into |elements| of the element currently animating. |
| 61 size_t current_index; |
| 62 }; |
| 63 |
| 64 // Corresponds to a mojo::AnimationGroup and is responsible for running the |
| 65 // actual animation. |
| 66 class ScheduledAnimationGroup { |
| 67 public: |
| 68 ~ScheduledAnimationGroup(); |
| 69 |
| 70 // Returns a new ScheduledAnimationGroup from the supplied parameters, or |
| 71 // null if |transport_group| isn't valid. |
| 72 static scoped_ptr<ScheduledAnimationGroup> Create( |
| 73 ServerView* view, |
| 74 base::TimeTicks now, |
| 75 uint32_t id, |
| 76 const mojo::AnimationGroup& transport_group); |
| 77 |
| 78 uint32_t id() const { return id_; } |
| 79 |
| 80 // Gets the start value for any elements that don't have an explicit start. |
| 81 // value. |
| 82 void ObtainStartValues(); |
| 83 |
| 84 // Sets the values of any properties that are not in |other| to their final |
| 85 // value. |
| 86 void SetValuesToTargetValuesForPropertiesNotIn( |
| 87 const ScheduledAnimationGroup& other); |
| 88 |
| 89 // Advances the group. |time| is the current time. Returns true if the group |
| 90 // is done (nothing left to animate). |
| 91 bool Tick(base::TimeTicks time); |
| 92 |
| 93 ServerView* view() { return view_; } |
| 94 |
| 95 private: |
| 96 ScheduledAnimationGroup(ServerView* view, |
| 97 uint32_t id, |
| 98 base::TimeTicks time_scheduled); |
| 99 |
| 100 ServerView* view_; |
| 101 const uint32_t id_; |
| 102 base::TimeTicks time_scheduled_; |
| 103 std::vector<ScheduledAnimationSequence> sequences_; |
| 104 |
| 105 DISALLOW_COPY_AND_ASSIGN(ScheduledAnimationGroup); |
| 106 }; |
| 107 |
| 108 } // namespace view_manager |
| 109 |
| 110 #endif // SERVICES_VIEW_MANAGER_SCHEDULED_ANIMATION_GROUP_H_ |
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