| // Copyright 2019 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COBALT_DOM_INTERSECTION_OBSERVER_ENTRY_H_ |
| #define COBALT_DOM_INTERSECTION_OBSERVER_ENTRY_H_ |
| |
| #include "base/memory/ref_counted.h" |
| #include "cobalt/script/wrappable.h" |
| |
| namespace cobalt { |
| namespace dom { |
| |
| class DOMRectReadOnly; |
| class Element; |
| class IntersectionObserverEntryInit; |
| |
| // The IntersectionObserverEntry describes the intersection between the root and |
| // a target Element at a specific moment of transition. |
| // https://www.w3.org/TR/intersection-observer/#intersection-observer-entry |
| class IntersectionObserverEntry : public script::Wrappable { |
| public: |
| explicit IntersectionObserverEntry( |
| const IntersectionObserverEntryInit& init_dict); |
| ~IntersectionObserverEntry(); |
| |
| // Web API: IntersectionObserverEntry |
| // |
| double time() const { return time_; } |
| const scoped_refptr<DOMRectReadOnly>& root_bounds() { return root_bounds_; } |
| const scoped_refptr<DOMRectReadOnly>& bounding_client_rect() { |
| return bounding_client_rect_; |
| } |
| const scoped_refptr<DOMRectReadOnly>& intersection_rect() { |
| return intersection_rect_; |
| } |
| bool is_intersecting() const { return is_intersecting_; } |
| double intersection_ratio() const { return intersection_ratio_; } |
| const scoped_refptr<Element>& target() { return target_; } |
| |
| DEFINE_WRAPPABLE_TYPE(IntersectionObserverEntry); |
| void TraceMembers(script::Tracer* tracer) override; |
| |
| private: |
| double time_; |
| scoped_refptr<DOMRectReadOnly> root_bounds_; |
| scoped_refptr<DOMRectReadOnly> bounding_client_rect_; |
| scoped_refptr<DOMRectReadOnly> intersection_rect_; |
| bool is_intersecting_; |
| double intersection_ratio_; |
| scoped_refptr<Element> target_; |
| }; |
| |
| } // namespace dom |
| } // namespace cobalt |
| |
| #endif // COBALT_DOM_INTERSECTION_OBSERVER_ENTRY_H_ |