Revert of Make WebKitCSSMatrix an alias of DOMMatrix

third_party/WebKit/Source/core/css/CSSMatrix.cpp

Index: third_party/WebKit/Source/core/css/CSSMatrix.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSMatrix.cpp b/third_party/WebKit/Source/core/css/CSSMatrix.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..92af03334253d3ad62c8a6bded0454aefa996737
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/CSSMatrix.cpp
@@ -0,0 +1,205 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "core/css/CSSMatrix.h"
+
+#include "bindings/core/v8/ExceptionState.h"
+#include "core/CSSPropertyNames.h"
+#include "core/CSSValueKeywords.h"
+#include "core/css/CSSIdentifierValue.h"
+#include "core/css/CSSToLengthConversionData.h"
+#include "core/css/StylePropertySet.h"
+#include "core/css/parser/CSSParser.h"
+#include "core/css/resolver/TransformBuilder.h"
+#include "core/dom/ExceptionCode.h"
+#include "core/frame/UseCounter.h"
+#include "core/layout/api/LayoutViewItem.h"
+#include "core/style/ComputedStyle.h"
+#include "platform/wtf/MathExtras.h"
+
+namespace blink {
+
+CSSMatrix* CSSMatrix::Create(ExecutionContext* execution_context,
+                             const String& s,
+                             ExceptionState& exception_state) {
+  return new CSSMatrix(s, exception_state);
+}
+
+CSSMatrix::CSSMatrix(const TransformationMatrix& m)
+    : matrix_(TransformationMatrix::Create(m)) {}
+
+CSSMatrix::CSSMatrix(const String& s, ExceptionState& exception_state)
+    : matrix_(TransformationMatrix::Create()) {
+  setMatrixValue(s, exception_state);
+}
+
+static inline PassRefPtr<ComputedStyle> CreateInitialStyle() {
+  RefPtr<ComputedStyle> initial_style = ComputedStyle::Create();
+  initial_style->GetFont().Update(nullptr);
+  return initial_style;
+}
+
+void CSSMatrix::setMatrixValue(const String& string,
+                               ExceptionState& exception_state) {
+  if (string.IsEmpty())
+    return;
+
+  if (const CSSValue* value =
+          CSSParser::ParseSingleValue(CSSPropertyTransform, string)) {
+    // Check for a "none" transform. In these cases we can use the default
+    // identity matrix.
+    if (value->IsIdentifierValue() &&
+        (ToCSSIdentifierValue(value))->GetValueID() == CSSValueNone)
+      return;
+
+    DEFINE_STATIC_REF(ComputedStyle, initial_style, CreateInitialStyle());
+    TransformOperations operations =
+        TransformBuilder::CreateTransformOperations(
+            *value, CSSToLengthConversionData(initial_style, initial_style,
+                                              LayoutViewItem(nullptr), 1.0f));
+
+    // Convert transform operations to a TransformationMatrix. This can fail
+    // if a param has a percentage ('%')
+    if (operations.DependsOnBoxSize()) {
+      exception_state.ThrowDOMException(kSyntaxError,
+                                        "The transformation depends on the box "
+                                        "size, which is not supported.");
+    }
+    matrix_ = TransformationMatrix::Create();
+    operations.Apply(FloatSize(0, 0), *matrix_);
+  } else {  // There is something there but parsing failed.
+    exception_state.ThrowDOMException(kSyntaxError,
+                                      "Failed to parse '" + string + "'.");
+  }
+}
+
+// Perform a concatenation of the matrices (this * secondMatrix)
+CSSMatrix* CSSMatrix::multiply(CSSMatrix* second_matrix) const {
+  if (!second_matrix)
+    return nullptr;
+
+  return CSSMatrix::Create(
+      TransformationMatrix(*matrix_).Multiply(*second_matrix->matrix_));
+}
+
+CSSMatrix* CSSMatrix::inverse(ExceptionState& exception_state) const {
+  if (!matrix_->IsInvertible()) {
+    exception_state.ThrowDOMException(kNotSupportedError,
+                                      "The matrix is not invertable.");
+    return nullptr;
+  }
+
+  return CSSMatrix::Create(matrix_->Inverse());
+}
+
+CSSMatrix* CSSMatrix::translate(double x, double y, double z) const {
+  if (std::isnan(x))
+    x = 0;
+  if (std::isnan(y))
+    y = 0;
+  if (std::isnan(z))
+    z = 0;
+  return CSSMatrix::Create(TransformationMatrix(*matrix_).Translate3d(x, y, z));
+}
+
+CSSMatrix* CSSMatrix::scale(double scale_x,
+                            double scale_y,
+                            double scale_z) const {
+  if (std::isnan(scale_x))
+    scale_x = 1;
+  if (std::isnan(scale_y))
+    scale_y = scale_x;
+  if (std::isnan(scale_z))
+    scale_z = 1;
+  return CSSMatrix::Create(
+      TransformationMatrix(*matrix_).Scale3d(scale_x, scale_y, scale_z));
+}
+
+CSSMatrix* CSSMatrix::rotate(double rot_x, double rot_y, double rot_z) const {
+  if (std::isnan(rot_x))
+    rot_x = 0;
+
+  if (std::isnan(rot_y) && std::isnan(rot_z)) {
+    rot_z = rot_x;
+    rot_x = 0;
+    rot_y = 0;
+  }
+
+  if (std::isnan(rot_y))
+    rot_y = 0;
+  if (std::isnan(rot_z))
+    rot_z = 0;
+  return CSSMatrix::Create(
+      TransformationMatrix(*matrix_).Rotate3d(rot_x, rot_y, rot_z));
+}
+
+CSSMatrix* CSSMatrix::rotateAxisAngle(double x,
+                                      double y,
+                                      double z,
+                                      double angle) const {
+  if (std::isnan(x))
+    x = 0;
+  if (std::isnan(y))
+    y = 0;
+  if (std::isnan(z))
+    z = 0;
+  if (std::isnan(angle))
+    angle = 0;
+  if (!x && !y && !z)
+    z = 1;
+  return CSSMatrix::Create(
+      TransformationMatrix(*matrix_).Rotate3d(x, y, z, angle));
+}
+
+CSSMatrix* CSSMatrix::skewX(double angle) const {
+  if (std::isnan(angle))
+    angle = 0;
+  return CSSMatrix::Create(TransformationMatrix(*matrix_).SkewX(angle));
+}
+
+CSSMatrix* CSSMatrix::skewY(double angle) const {
+  if (std::isnan(angle))
+    angle = 0;
+  return CSSMatrix::Create(TransformationMatrix(*matrix_).SkewY(angle));
+}
+
+String CSSMatrix::toString() const {
+  // FIXME - Need to ensure valid CSS floating point values
+  // (https://bugs.webkit.org/show_bug.cgi?id=20674)
+  if (matrix_->IsAffine()) {
+    return String::Format("matrix(%g, %g, %g, %g, %g, %g)", matrix_->A(),
+                          matrix_->B(), matrix_->C(), matrix_->D(),
+                          matrix_->E(), matrix_->F());
+  }
+  return String::Format(
+      "matrix3d(%g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, "
+      "%g)",
+      matrix_->M11(), matrix_->M12(), matrix_->M13(), matrix_->M14(),
+      matrix_->M21(), matrix_->M22(), matrix_->M23(), matrix_->M24(),
+      matrix_->M31(), matrix_->M32(), matrix_->M33(), matrix_->M34(),
+      matrix_->M41(), matrix_->M42(), matrix_->M43(), matrix_->M44());
+}
+
+}  // namespace blink