| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CSSInterpolationEnvironment_h |
| #define CSSInterpolationEnvironment_h |
| |
| #include "core/animation/InterpolationEnvironment.h" |
| #include "core/css/resolver/StyleResolverState.h" |
| |
| namespace blink { |
| |
| class ComputedStyle; |
| class CSSVariableResolver; |
| |
| class CSSInterpolationEnvironment : public InterpolationEnvironment { |
| public: |
| explicit CSSInterpolationEnvironment(const InterpolationTypesMap& map, |
| StyleResolverState& state, |
| CSSVariableResolver* variable_resolver) |
| : InterpolationEnvironment(map), |
| state_(&state), |
| style_(state.Style()), |
| variable_resolver_(variable_resolver) {} |
| |
| explicit CSSInterpolationEnvironment(const InterpolationTypesMap& map, |
| const ComputedStyle& style) |
| : InterpolationEnvironment(map), style_(&style) {} |
| |
| bool IsCSS() const final { return true; } |
| |
| StyleResolverState& GetState() { |
| DCHECK(state_); |
| return *state_; |
| } |
| const StyleResolverState& GetState() const { |
| DCHECK(state_); |
| return *state_; |
| } |
| |
| const ComputedStyle& Style() const { |
| DCHECK(style_); |
| return *style_; |
| } |
| |
| bool HasVariableResolver() const { return variable_resolver_; } |
| |
| CSSVariableResolver& VariableResolver() const { |
| DCHECK(HasVariableResolver()); |
| return *variable_resolver_; |
| } |
| |
| private: |
| StyleResolverState* state_ = nullptr; |
| const ComputedStyle* style_ = nullptr; |
| CSSVariableResolver* variable_resolver_ = nullptr; |
| }; |
| |
| DEFINE_TYPE_CASTS(CSSInterpolationEnvironment, |
| InterpolationEnvironment, |
| value, |
| value->IsCSS(), |
| value.IsCSS()); |
| |
| } // namespace blink |
| |
| #endif // CSSInterpolationEnvironment_h |