clip_path_paint_definition.cc | Explore in Territory

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/modules/csspaint/nativepaint/clip_path_paint_definition.h"

#include "cc/paint/paint_recorder.h"
#include "third_party/blink/renderer/core/animation/basic_shape_interpolation_functions.h"
#include "third_party/blink/renderer/core/animation/css/compositor_keyframe_double.h"
#include "third_party/blink/renderer/core/animation/element_animations.h"
#include "third_party/blink/renderer/core/animation/path_interpolation_functions.h"
#include "third_party/blink/renderer/core/css/basic_shape_functions.h"
#include "third_party/blink/renderer/core/css/css_identifier_value.h"
#include "third_party/blink/renderer/core/css/css_inherited_value.h"
#include "third_party/blink/renderer/core/css/css_initial_value.h"
#include "third_party/blink/renderer/core/css/css_revert_layer_value.h"
#include "third_party/blink/renderer/core/css/css_revert_value.h"
#include "third_party/blink/renderer/core/css/css_to_length_conversion_data.h"
#include "third_party/blink/renderer/core/css/css_unset_value.h"
#include "third_party/blink/renderer/core/css/css_value_list.h"
#include "third_party/blink/renderer/core/css/cssom/paint_worklet_deferred_image.h"
#include "third_party/blink/renderer/core/css/cssom/paint_worklet_input.h"
#include "third_party/blink/renderer/core/css/properties/longhands.h"
#include "third_party/blink/renderer/core/css/resolver/style_resolver.h"
#include "third_party/blink/renderer/core/css/resolver/style_resolver_state.h"
#include "third_party/blink/renderer/core/layout/layout_object.h"
#include "third_party/blink/renderer/core/style/computed_style_constants.h"
#include "third_party/blink/renderer/core/style/shape_clip_path_operation.h"
#include "ui/gfx/geometry/size_f.h"

namespace blink {

namespace {

// This struct contains the keyframe index and the intra-keyframe progress. It
// is calculated by GetAdjustedProgress.
struct AnimationProgress { … };

// This class includes information that is required by the compositor thread
// when painting clip path.
class ClipPathPaintWorkletInput : public PaintWorkletInput { … };

scoped_refptr<BasicShape> CreateBasicShape(
    BasicShape::ShapeType type,
    const InterpolableValue& interpolable_value,
    const NonInterpolableValue& untyped_non_interpolable_value) { … }

bool CanExtractShapeOrPath(const CSSValue* computed_value) { … }

scoped_refptr<BasicShape> GetAnimatedShapeFromKeyframe(
    const PropertySpecificKeyframe* frame,
    const KeyframeEffectModelBase* model,
    const Element* element) { … }

bool ValidateClipPathValue(const Element* element,
                           const CSSValue* value,
                           const InterpolableValue* interpolable_value) { … }

SkPath InterpolatePaths(const bool shapes_are_compatible,
                        const SkPath& from,
                        const SkPath& to,
                        const float progress) { … }

double GetLocalProgress(double global_progress,
                        double first_offset,
                        double next_offset) { … }

}  // namespace

template <>
struct DowncastTraits<ClipPathPaintWorkletInput> { … };

// TODO(crbug.com/1248605): Introduce helper functions commonly used by
// background-color and clip-path animations.
// static
Animation* ClipPathPaintDefinition::GetAnimationIfCompositable(
    const Element* element) { … }

// static
ClipPathPaintDefinition* ClipPathPaintDefinition::Create(
    LocalFrame& local_root) { … }

ClipPathPaintDefinition::ClipPathPaintDefinition(LocalFrame& local_root)
    : … { … }

PaintRecord ClipPathPaintDefinition::Paint(
    const CompositorPaintWorkletInput* compositor_input,
    const CompositorPaintWorkletJob::AnimatedPropertyValues&
        animated_property_values) { … }

// Creates a deferred image of size clip_area_size that will be painted via
// paint worklet. The clip paths will be scaled and translated according to
// reference_box.
// static
scoped_refptr<Image> ClipPathPaintDefinition::Paint(
    float zoom,
    const gfx::RectF& reference_box,
    const gfx::SizeF& clip_area_size,
    const Node& node,
    int worklet_id) { … }

// static
gfx::RectF ClipPathPaintDefinition::ClipAreaRect(
    const Node& node,
    const gfx::RectF& reference_box,
    float zoom) { … }

void ClipPathPaintDefinition::Trace(Visitor* visitor) const { … }

}  // namespace blink
chromium/third_party/blink/renderer/modules/csspaint/nativepaint/clip_path_paint_definition.cc
