Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 267 insertions, 0 deletions

diff --git a/layout/style/StyleAnimationValue.cpp b/layout/style/StyleAnimationValue.cpp
new file mode 100644
index 0000000000..9933d6b32c
--- /dev/null
+++ b/layout/style/StyleAnimationValue.cpp
@@ -0,0 +1,267 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* Utilities for animation of computed style values */
+
+#include "mozilla/StyleAnimationValue.h"
+
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/MathAlgorithms.h"
+#include "mozilla/PresShell.h"
+#include "mozilla/PresShellInlines.h"
+#include "mozilla/ServoStyleSet.h"
+#include "mozilla/Tuple.h"
+#include "mozilla/UniquePtr.h"
+#include "nsCOMArray.h"
+#include "nsString.h"
+#include "mozilla/ComputedStyle.h"
+#include "nsComputedDOMStyle.h"
+#include "nsCSSPseudoElements.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/FloatingPoint.h"
+#include "mozilla/Likely.h"
+#include "mozilla/ServoBindings.h"  // RawServoDeclarationBlock
+#include "mozilla/ServoCSSParser.h"
+#include "gfxMatrix.h"
+#include "gfxQuaternion.h"
+#include "mozilla/dom/Document.h"
+#include "nsIFrame.h"
+#include "gfx2DGlue.h"
+#include "mozilla/ComputedStyleInlines.h"
+#include "mozilla/layers/LayersMessages.h"
+
+using namespace mozilla;
+using namespace mozilla::css;
+using namespace mozilla::dom;
+using namespace mozilla::gfx;
+
+bool AnimationValue::operator==(const AnimationValue& aOther) const {
+  if (mServo && aOther.mServo) {
+    return Servo_AnimationValue_DeepEqual(mServo, aOther.mServo);
+  }
+  if (!mServo && !aOther.mServo) {
+    return true;
+  }
+  return false;
+}
+
+bool AnimationValue::operator!=(const AnimationValue& aOther) const {
+  return !operator==(aOther);
+}
+
+float AnimationValue::GetOpacity() const {
+  MOZ_ASSERT(mServo);
+  return Servo_AnimationValue_GetOpacity(mServo);
+}
+
+nscolor AnimationValue::GetColor(nscolor aForegroundColor) const {
+  MOZ_ASSERT(mServo);
+  return Servo_AnimationValue_GetColor(mServo, aForegroundColor);
+}
+
+bool AnimationValue::IsCurrentColor() const {
+  MOZ_ASSERT(mServo);
+  return Servo_AnimationValue_IsCurrentColor(mServo);
+}
+
+const StyleTranslate& AnimationValue::GetTranslateProperty() const {
+  MOZ_ASSERT(mServo);
+  return *Servo_AnimationValue_GetTranslate(mServo);
+}
+
+const StyleRotate& AnimationValue::GetRotateProperty() const {
+  MOZ_ASSERT(mServo);
+  return *Servo_AnimationValue_GetRotate(mServo);
+}
+
+const StyleScale& AnimationValue::GetScaleProperty() const {
+  MOZ_ASSERT(mServo);
+  return *Servo_AnimationValue_GetScale(mServo);
+}
+
+const StyleTransform& AnimationValue::GetTransformProperty() const {
+  MOZ_ASSERT(mServo);
+  return *Servo_AnimationValue_GetTransform(mServo);
+}
+
+const mozilla::StyleOffsetPath& AnimationValue::GetOffsetPathProperty() const {
+  MOZ_ASSERT(mServo);
+  return *Servo_AnimationValue_GetOffsetPath(mServo);
+}
+
+const mozilla::LengthPercentage& AnimationValue::GetOffsetDistanceProperty()
+    const {
+  MOZ_ASSERT(mServo);
+  return *Servo_AnimationValue_GetOffsetDistance(mServo);
+}
+
+const mozilla::StyleOffsetRotate& AnimationValue::GetOffsetRotateProperty()
+    const {
+  MOZ_ASSERT(mServo);
+  return *Servo_AnimationValue_GetOffsetRotate(mServo);
+}
+
+const mozilla::StylePositionOrAuto& AnimationValue::GetOffsetAnchorProperty()
+    const {
+  MOZ_ASSERT(mServo);
+  return *Servo_AnimationValue_GetOffsetAnchor(mServo);
+}
+
+MatrixScales AnimationValue::GetScaleValue(const nsIFrame* aFrame) const {
+  using namespace nsStyleTransformMatrix;
+
+  switch (Servo_AnimationValue_GetPropertyId(mServo)) {
+    case eCSSProperty_scale: {
+      const StyleScale& scale = GetScaleProperty();
+      return scale.IsNone()
+                 ? MatrixScales()
+                 : MatrixScales(scale.AsScale()._0, scale.AsScale()._1);
+    }
+    case eCSSProperty_rotate:
+    case eCSSProperty_translate:
+      return MatrixScales();
+    case eCSSProperty_transform:
+      break;
+    default:
+      MOZ_ASSERT_UNREACHABLE(
+          "Should only need to check in transform properties");
+      return MatrixScales();
+  }
+
+  TransformReferenceBox refBox(aFrame);
+  Matrix4x4 t =
+      ReadTransforms(StyleTranslate::None(), StyleRotate::None(),
+                     StyleScale::None(), Nothing(), GetTransformProperty(),
+                     refBox, aFrame->PresContext()->AppUnitsPerDevPixel());
+  Matrix transform2d;
+  bool canDraw2D = t.CanDraw2D(&transform2d);
+  if (!canDraw2D) {
+    return MatrixScales(0, 0);
+  }
+  return transform2d.ScaleFactors();
+}
+
+void AnimationValue::SerializeSpecifiedValue(nsCSSPropertyID aProperty,
+                                             const RawServoStyleSet* aRawSet,
+                                             nsACString& aString) const {
+  MOZ_ASSERT(mServo);
+  Servo_AnimationValue_Serialize(mServo, aProperty, aRawSet, &aString);
+}
+
+bool AnimationValue::IsInterpolableWith(nsCSSPropertyID aProperty,
+                                        const AnimationValue& aToValue) const {
+  if (IsNull() || aToValue.IsNull()) {
+    return false;
+  }
+
+  MOZ_ASSERT(mServo);
+  MOZ_ASSERT(aToValue.mServo);
+  return Servo_AnimationValues_IsInterpolable(mServo, aToValue.mServo);
+}
+
+double AnimationValue::ComputeDistance(nsCSSPropertyID aProperty,
+                                       const AnimationValue& aOther) const {
+  if (IsNull() || aOther.IsNull()) {
+    return 0.0;
+  }
+
+  MOZ_ASSERT(mServo);
+  MOZ_ASSERT(aOther.mServo);
+
+  double distance =
+      Servo_AnimationValues_ComputeDistance(mServo, aOther.mServo);
+  return distance < 0.0 ? 0.0 : distance;
+}
+
+/* static */
+AnimationValue AnimationValue::FromString(nsCSSPropertyID aProperty,
+                                          const nsACString& aValue,
+                                          Element* aElement) {
+  MOZ_ASSERT(aElement);
+
+  AnimationValue result;
+
+  nsCOMPtr<Document> doc = aElement->GetComposedDoc();
+  if (!doc) {
+    return result;
+  }
+
+  RefPtr<PresShell> presShell = doc->GetPresShell();
+  if (!presShell) {
+    return result;
+  }
+
+  // GetComputedStyle() flushes style, so we shouldn't assume that any
+  // non-owning references we have are still valid.
+  RefPtr<const ComputedStyle> computedStyle =
+      nsComputedDOMStyle::GetComputedStyle(aElement);
+  MOZ_ASSERT(computedStyle);
+
+  RefPtr<RawServoDeclarationBlock> declarations = ServoCSSParser::ParseProperty(
+      aProperty, aValue, ServoCSSParser::GetParsingEnvironment(doc));
+
+  if (!declarations) {
+    return result;
+  }
+
+  result.mServo = presShell->StyleSet()->ComputeAnimationValue(
+      aElement, declarations, computedStyle);
+  return result;
+}
+
+/* static */
+already_AddRefed<RawServoAnimationValue> AnimationValue::FromAnimatable(
+    nsCSSPropertyID aProperty, const layers::Animatable& aAnimatable) {
+  switch (aAnimatable.type()) {
+    case layers::Animatable::Tnull_t:
+      break;
+    case layers::Animatable::TStyleTransform: {
+      const StyleTransform& transform = aAnimatable.get_StyleTransform();
+      MOZ_ASSERT(!transform.HasPercent(),
+                 "Received transform operations should have been resolved.");
+      return Servo_AnimationValue_Transform(&transform).Consume();
+    }
+    case layers::Animatable::Tfloat:
+      return Servo_AnimationValue_Opacity(aAnimatable.get_float()).Consume();
+    case layers::Animatable::Tnscolor:
+      return Servo_AnimationValue_Color(aProperty, aAnimatable.get_nscolor())
+          .Consume();
+    case layers::Animatable::TStyleRotate:
+      return Servo_AnimationValue_Rotate(&aAnimatable.get_StyleRotate())
+          .Consume();
+    case layers::Animatable::TStyleScale:
+      return Servo_AnimationValue_Scale(&aAnimatable.get_StyleScale())
+          .Consume();
+    case layers::Animatable::TStyleTranslate:
+      MOZ_ASSERT(
+          aAnimatable.get_StyleTranslate().IsNone() ||
+              (!aAnimatable.get_StyleTranslate()
+                    .AsTranslate()
+                    ._0.HasPercent() &&
+               !aAnimatable.get_StyleTranslate().AsTranslate()._1.HasPercent()),
+          "Should have been resolved already");
+      return Servo_AnimationValue_Translate(&aAnimatable.get_StyleTranslate())
+          .Consume();
+    case layers::Animatable::TStyleOffsetPath:
+      return Servo_AnimationValue_OffsetPath(&aAnimatable.get_StyleOffsetPath())
+          .Consume();
+    case layers::Animatable::TLengthPercentage:
+      return Servo_AnimationValue_OffsetDistance(
+                 &aAnimatable.get_LengthPercentage())
+          .Consume();
+    case layers::Animatable::TStyleOffsetRotate:
+      return Servo_AnimationValue_OffsetRotate(
+                 &aAnimatable.get_StyleOffsetRotate())
+          .Consume();
+    case layers::Animatable::TStylePositionOrAuto:
+      return Servo_AnimationValue_OffsetAnchor(
+                 &aAnimatable.get_StylePositionOrAuto())
+          .Consume();
+    default:
+      MOZ_ASSERT_UNREACHABLE("Unsupported type");
+  }
+  return nullptr;
+}