1 files changed, 169 insertions, 0 deletions
diff --git a/layout/style/nsROCSSPrimitiveValue.cpp b/layout/style/nsROCSSPrimitiveValue.cpp
new file mode 100644
index 0000000000..84911d209b
--- /dev/null
+++ b/layout/style/nsROCSSPrimitiveValue.cpp
@@ -0,0 +1,169 @@
+/* -*- 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/. */
+
+/* DOM object representing values in DOM computed style */
+
+#include "nsROCSSPrimitiveValue.h"
+
+#include "mozilla/ErrorResult.h"
+#include "nsPresContext.h"
+#include "nsStyleUtil.h"
+#include "nsError.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+nsROCSSPrimitiveValue::nsROCSSPrimitiveValue() : CSSValue(), mType(CSS_PX) {
+  mValue.mFloat = 0.0f;
+}
+
+nsROCSSPrimitiveValue::~nsROCSSPrimitiveValue() { Reset(); }
+
+void nsROCSSPrimitiveValue::GetCssText(nsAString& aCssText) {
+  nsAutoString tmpStr;
+  aCssText.Truncate();
+
+  switch (mType) {
+    case CSS_PX: {
+      nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
+      tmpStr.AppendLiteral("px");
+      break;
+    }
+    case CSS_STRING: {
+      tmpStr.Append(mValue.mString);
+      break;
+    }
+    case CSS_PERCENTAGE: {
+      nsStyleUtil::AppendCSSNumber(mValue.mFloat * 100, tmpStr);
+      tmpStr.Append(char16_t('%'));
+      break;
+    }
+    case CSS_NUMBER: {
+      nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
+      break;
+    }
+    case CSS_NUMBER_INT32: {
+      tmpStr.AppendInt(mValue.mInt32);
+      break;
+    }
+    case CSS_NUMBER_UINT32: {
+      tmpStr.AppendInt(mValue.mUint32);
+      break;
+    }
+    case CSS_DEG: {
+      nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
+      tmpStr.AppendLiteral("deg");
+      break;
+    }
+    case CSS_S: {
+      nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
+      tmpStr.Append('s');
+      break;
+    }
+  }
+
+  aCssText.Assign(tmpStr);
+}
+
+uint16_t nsROCSSPrimitiveValue::CssValueType() const {
+  return CSSValue::CSS_PRIMITIVE_VALUE;
+}
+
+void nsROCSSPrimitiveValue::SetNumber(float aValue) {
+  Reset();
+  mValue.mFloat = aValue;
+  mType = CSS_NUMBER;
+}
+
+void nsROCSSPrimitiveValue::SetNumber(int32_t aValue) {
+  Reset();
+  mValue.mInt32 = aValue;
+  mType = CSS_NUMBER_INT32;
+}
+
+void nsROCSSPrimitiveValue::SetNumber(uint32_t aValue) {
+  Reset();
+  mValue.mUint32 = aValue;
+  mType = CSS_NUMBER_UINT32;
+}
+
+void nsROCSSPrimitiveValue::SetPercent(float aValue) {
+  Reset();
+  mValue.mFloat = aValue;
+  mType = CSS_PERCENTAGE;
+}
+
+void nsROCSSPrimitiveValue::SetDegree(float aValue) {
+  Reset();
+  mValue.mFloat = aValue;
+  mType = CSS_DEG;
+}
+
+void nsROCSSPrimitiveValue::SetAppUnits(nscoord aValue) {
+  SetPixels(nsPresContext::AppUnitsToFloatCSSPixels(aValue));
+}
+
+void nsROCSSPrimitiveValue::SetPixels(float aValue) {
+  Reset();
+  mValue.mFloat = aValue;
+  mType = CSS_PX;
+}
+
+void nsROCSSPrimitiveValue::SetAppUnits(float aValue) {
+  SetAppUnits(NSToCoordRound(aValue));
+}
+
+void nsROCSSPrimitiveValue::SetString(const nsACString& aString) {
+  Reset();
+  mValue.mString = ToNewUnicode(aString, mozilla::fallible);
+  if (mValue.mString) {
+    mType = CSS_STRING;
+  } else {
+    // XXXcaa We should probably let the caller know we are out of memory
+    mType = CSS_UNKNOWN;
+  }
+}
+
+void nsROCSSPrimitiveValue::SetString(const nsAString& aString) {
+  Reset();
+  mValue.mString = ToNewUnicode(aString, mozilla::fallible);
+  if (mValue.mString) {
+    mType = CSS_STRING;
+  } else {
+    // XXXcaa We should probably let the caller know we are out of memory
+    mType = CSS_UNKNOWN;
+  }
+}
+
+void nsROCSSPrimitiveValue::SetTime(float aValue) {
+  Reset();
+  mValue.mFloat = aValue;
+  mType = CSS_S;
+}
+
+void nsROCSSPrimitiveValue::Reset() {
+  switch (mType) {
+    case CSS_STRING:
+      NS_ASSERTION(mValue.mString, "Null string should never happen");
+      free(mValue.mString);
+      mValue.mString = nullptr;
+      break;
+  }
+
+  mType = CSS_UNKNOWN;
+}
+
+uint16_t nsROCSSPrimitiveValue::PrimitiveType() {
+  // New value types were introduced but not added to CSS OM.
+  // Return CSS_UNKNOWN to avoid exposing CSS_TURN to content.
+  if (mType > CSS_RGBCOLOR) {
+    if (mType == CSS_NUMBER_INT32 || mType == CSS_NUMBER_UINT32) {
+      return CSS_NUMBER;
+    }
+    return CSS_UNKNOWN;
+  }
+  return mType;
+}