Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 145 insertions, 0 deletions

diff --git a/dom/svg/SVGOrientSMILType.cpp b/dom/svg/SVGOrientSMILType.cpp
new file mode 100644
index 0000000000..8086bc902f
--- /dev/null
+++ b/dom/svg/SVGOrientSMILType.cpp
@@ -0,0 +1,145 @@
+/* -*- 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/. */
+
+#include "SVGOrientSMILType.h"
+
+#include "mozilla/SMILValue.h"
+#include "mozilla/dom/SVGMarkerElement.h"
+#include "nsDebug.h"
+#include "SVGAnimatedOrient.h"
+#include <math.h>
+
+namespace mozilla {
+
+using namespace dom::SVGAngle_Binding;
+using namespace dom::SVGMarkerElement_Binding;
+
+/*static*/
+SVGOrientSMILType SVGOrientSMILType::sSingleton;
+
+void SVGOrientSMILType::Init(SMILValue& aValue) const {
+  MOZ_ASSERT(aValue.IsNull(), "Unexpected value type");
+
+  aValue.mU.mOrient.mAngle = 0.0f;
+  aValue.mU.mOrient.mUnit = SVG_ANGLETYPE_UNSPECIFIED;
+  aValue.mU.mOrient.mOrientType = SVG_MARKER_ORIENT_ANGLE;
+  aValue.mType = this;
+}
+
+void SVGOrientSMILType::Destroy(SMILValue& aValue) const {
+  MOZ_ASSERT(aValue.mType == this, "Unexpected SMIL value.");
+  aValue.mU.mPtr = nullptr;
+  aValue.mType = SMILNullType::Singleton();
+}
+
+nsresult SVGOrientSMILType::Assign(SMILValue& aDest,
+                                   const SMILValue& aSrc) const {
+  MOZ_ASSERT(aDest.mType == aSrc.mType, "Incompatible SMIL types.");
+  MOZ_ASSERT(aDest.mType == this, "Unexpected SMIL value.");
+
+  aDest.mU.mOrient.mAngle = aSrc.mU.mOrient.mAngle;
+  aDest.mU.mOrient.mUnit = aSrc.mU.mOrient.mUnit;
+  aDest.mU.mOrient.mOrientType = aSrc.mU.mOrient.mOrientType;
+  return NS_OK;
+}
+
+bool SVGOrientSMILType::IsEqual(const SMILValue& aLeft,
+                                const SMILValue& aRight) const {
+  MOZ_ASSERT(aLeft.mType == aRight.mType, "Incompatible SMIL types");
+  MOZ_ASSERT(aLeft.mType == this, "Unexpected type for SMIL value");
+
+  return aLeft.mU.mOrient.mAngle == aRight.mU.mOrient.mAngle &&
+         aLeft.mU.mOrient.mUnit == aRight.mU.mOrient.mUnit &&
+         aLeft.mU.mOrient.mOrientType == aRight.mU.mOrient.mOrientType;
+}
+
+static float ValueInDegrees(const SMILValue& aValue) {
+  MOZ_ASSERT(aValue.mU.mOrient.mOrientType == SVG_MARKER_ORIENT_ANGLE);
+
+  return aValue.mU.mOrient.mAngle == 0.0f
+             ? 0.0f
+             : aValue.mU.mOrient.mAngle * SVGAnimatedOrient::GetDegreesPerUnit(
+                                              aValue.mU.mOrient.mUnit);
+}
+
+nsresult SVGOrientSMILType::Add(SMILValue& aDest, const SMILValue& aValueToAdd,
+                                uint32_t aCount) const {
+  MOZ_ASSERT(aValueToAdd.mType == aDest.mType, "Trying to add invalid types");
+  MOZ_ASSERT(aValueToAdd.mType == this, "Unexpected source type");
+
+  if (aDest.mU.mOrient.mOrientType != SVG_MARKER_ORIENT_ANGLE ||
+      aValueToAdd.mU.mOrient.mOrientType != SVG_MARKER_ORIENT_ANGLE) {
+    // TODO: it would be nice to be able to add to auto angles
+    return NS_ERROR_FAILURE;
+  }
+
+  // We may be dealing with two different angle units, so we normalize to
+  // degrees for the add:
+  float currentAngle = ValueInDegrees(aDest);
+  float angleToAdd = ValueInDegrees(aValueToAdd) * aCount;
+
+  // And then we give the resulting animated value the same units as the value
+  // that we're animating to/by (i.e. the same as aValueToAdd):
+  aDest.mU.mOrient.mAngle =
+      (currentAngle + angleToAdd) /
+      SVGAnimatedOrient::GetDegreesPerUnit(aValueToAdd.mU.mOrient.mUnit);
+  aDest.mU.mOrient.mUnit = aValueToAdd.mU.mOrient.mUnit;
+
+  return NS_OK;
+}
+
+nsresult SVGOrientSMILType::ComputeDistance(const SMILValue& aFrom,
+                                            const SMILValue& aTo,
+                                            double& aDistance) const {
+  MOZ_ASSERT(aFrom.mType == aTo.mType, "Trying to compare different types");
+  MOZ_ASSERT(aFrom.mType == this, "Unexpected source type");
+
+  if (aFrom.mU.mOrient.mOrientType != SVG_MARKER_ORIENT_ANGLE ||
+      aTo.mU.mOrient.mOrientType != SVG_MARKER_ORIENT_ANGLE) {
+    // TODO: it would be nice to be able to compute distance with auto angles
+    return NS_ERROR_FAILURE;
+  }
+
+  // Normalize both to degrees in case they're different angle units:
+  aDistance = fabs(ValueInDegrees(aTo) - ValueInDegrees(aFrom));
+
+  return NS_OK;
+}
+
+nsresult SVGOrientSMILType::Interpolate(const SMILValue& aStartVal,
+                                        const SMILValue& aEndVal,
+                                        double aUnitDistance,
+                                        SMILValue& aResult) const {
+  MOZ_ASSERT(aStartVal.mType == aEndVal.mType,
+             "Trying to interpolate different types");
+  MOZ_ASSERT(aStartVal.mType == this, "Unexpected types for interpolation.");
+  MOZ_ASSERT(aResult.mType == this, "Unexpected result type.");
+
+  if (aStartVal.mU.mOrient.mOrientType != SVG_MARKER_ORIENT_ANGLE ||
+      aEndVal.mU.mOrient.mOrientType != SVG_MARKER_ORIENT_ANGLE) {
+    // TODO: it would be nice to be able to handle auto angles too.
+    return NS_ERROR_FAILURE;
+  }
+
+  float start = ValueInDegrees(aStartVal);
+  float end = ValueInDegrees(aEndVal);
+  float result = (start + (end - start) * aUnitDistance);
+
+  // we use the unit of the nearest value for the result:
+  if (aUnitDistance > 0.5) {
+    aResult.mU.mOrient.mAngle =
+        result / SVGAnimatedOrient::GetDegreesPerUnit(aEndVal.mU.mOrient.mUnit);
+    aResult.mU.mOrient.mUnit = aEndVal.mU.mOrient.mUnit;
+  } else {
+    aResult.mU.mOrient.mAngle = result / SVGAnimatedOrient::GetDegreesPerUnit(
+                                             aStartVal.mU.mOrient.mUnit);
+    aResult.mU.mOrient.mUnit = aStartVal.mU.mOrient.mUnit;
+  }
+
+  return NS_OK;
+}
+
+}  // namespace mozilla