Index: third_party/WebKit/Source/core/dom/DOMMatrix.cpp |
diff --git a/third_party/WebKit/Source/core/dom/DOMMatrix.cpp b/third_party/WebKit/Source/core/dom/DOMMatrix.cpp |
index 0e77259c9af33e0ffc0c6bc1bd47d0ce23edab1a..63d9226b4c95c33c1c3abd6993cf61a9485fe0b9 100644 |
--- a/third_party/WebKit/Source/core/dom/DOMMatrix.cpp |
+++ b/third_party/WebKit/Source/core/dom/DOMMatrix.cpp |
@@ -4,6 +4,14 @@ |
#include "core/dom/DOMMatrix.h" |
+#include "core/css/CSSIdentifierValue.h" |
+#include "core/css/CSSToLengthConversionData.h" |
+#include "core/css/CSSValueList.h" |
+#include "core/css/parser/CSSParser.h" |
+#include "core/css/resolver/TransformBuilder.h" |
+#include "core/layout/api/LayoutViewItem.h" |
+#include "core/style/ComputedStyle.h" |
+ |
namespace blink { |
DOMMatrix* DOMMatrix::create(ExceptionState& exceptionState) { |
@@ -215,4 +223,62 @@ DOMMatrix* DOMMatrix::invertSelf() { |
return this; |
} |
+DOMMatrix* DOMMatrix::setMatrixValue(const String& inputString, |
+ ExceptionState& exceptionState) { |
+ DEFINE_STATIC_LOCAL(String, identityMatrix2D, ("matrix(1, 0, 0, 1, 0, 0)")); |
+ String string = inputString; |
+ if (string.isEmpty()) |
+ string = identityMatrix2D; |
+ |
+ const CSSValue* value = |
+ CSSParser::parseSingleValue(CSSPropertyTransform, string); |
+ |
+ if (!value) { |
+ exceptionState.throwDOMException(SyntaxError, |
+ "Failed to parse '" + inputString + "'."); |
+ return nullptr; |
+ } |
+ |
+ if (value->isIdentifierValue()) { |
+ if ((toCSSIdentifierValue(value))->getValueID() == CSSValueNone) { |
+ return this; |
+ } |
+ } else { |
+ if (!value->isValueList()) { |
+ exceptionState.throwDOMException( |
+ SyntaxError, "Failed to parse '" + inputString + "'."); |
+ return nullptr; |
+ } |
+ } |
+ |
+ DEFINE_STATIC_REF(ComputedStyle, initialStyle, |
+ ComputedStyle::clone(ComputedStyle::initialStyle())); |
Timothy Loh
2016/10/25 04:48:01
We don't need to clone this at all, just use Compu
Hwanseung Lee
2016/10/27 16:24:48
Done.
|
+ if (value->isValueList() && |
+ TransformBuilder::hasRelativeLengths(toCSSValueList(*value))) { |
+ exceptionState.throwDOMException(SyntaxError, |
+ "Relative lengths not supported."); |
+ return nullptr; |
+ } |
+ |
+ TransformOperations operations; |
+ TransformBuilder::createTransformOperations( |
+ *value, CSSToLengthConversionData(initialStyle, initialStyle, |
+ LayoutViewItem(nullptr), 1.0f), |
+ operations); |
+ |
+ if (operations.dependsOnBoxSize()) { |
+ exceptionState.throwDOMException(SyntaxError, |
+ "The transformation depends on the box " |
+ "size, which is not supported."); |
+ return nullptr; |
+ } |
+ |
+ m_is2D = !operations.has3DOperation(); |
+ |
+ m_matrix = TransformationMatrix::create(); |
Timothy Loh
2016/10/25 04:48:01
It's probably better to just call makeIdentity() i
Hwanseung Lee
2016/10/26 14:51:43
Done.
|
+ operations.apply(FloatSize(0, 0), *m_matrix); |
+ |
+ return this; |
+} |
+ |
} // namespace blink |