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| 1 // Copyright 2017 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 ScrollTimeline_h |
| 6 #define ScrollTimeline_h |
| 7 |
| 8 #include "core/CoreExport.h" |
| 9 #include "core/animation/AnimationTimeline.h" |
| 10 #include "core/animation/ScrollTimelineOptions.h" |
| 11 #include "core/dom/Element.h" |
| 12 #include "platform/bindings/ScriptWrappable.h" |
| 13 #include "platform/wtf/text/WTFString.h" |
| 14 |
| 15 namespace blink { |
| 16 |
| 17 class CORE_EXPORT ScrollTimeline final : public AnimationTimeline { |
| 18 DEFINE_WRAPPERTYPEINFO(); |
| 19 |
| 20 public: |
| 21 enum ScrollDirection { |
| 22 Auto, |
| 23 Block, |
| 24 Inline, |
| 25 }; |
| 26 |
| 27 static ScrollTimeline* Create(const Document&, |
| 28 ScrollTimelineOptions, |
| 29 ExceptionState&); |
| 30 |
| 31 // AnimationTimeline overrides. |
| 32 // TODO(smcgruer): We shouldn't have to override this many methods. Instead, |
| 33 // DocumentTimeline should own the |CurrentTimeInternal| methods so that we |
| 34 // only have to override |currentTime|. |
| 35 double currentTime(bool& is_null) override; |
| 36 double currentTime() override; |
| 37 double CurrentTimeInternal(bool& is_null) override; |
| 38 double CurrentTimeInternal() override; |
| 39 |
| 40 // IDL API implementation. |
| 41 Element* scrollSource(); |
| 42 String orientation(); |
| 43 void timeRange(DoubleOrScrollTimelineAutoKeyword&); |
| 44 |
| 45 DECLARE_VIRTUAL_TRACE(); |
| 46 |
| 47 private: |
| 48 ScrollTimeline(const Document&, Element*, ScrollDirection, double); |
| 49 |
| 50 Member<Element> scroll_source_; |
| 51 ScrollDirection orientation_; |
| 52 double time_range_; |
| 53 }; |
| 54 |
| 55 } // namespace blink |
| 56 |
| 57 #endif |
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