1 files changed, 73 insertions, 0 deletions
diff --git a/dom/flex/FlexLineValues.cpp b/dom/flex/FlexLineValues.cpp
new file mode 100644
index 0000000000..aac403d58a
--- /dev/null
+++ b/dom/flex/FlexLineValues.cpp
@@ -0,0 +1,73 @@
+/* -*- 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 "FlexLineValues.h"
+
+#include "Flex.h"
+#include "FlexItemValues.h"
+#include "mozilla/dom/FlexBinding.h"
+#include "nsFlexContainerFrame.h"
+
+namespace mozilla::dom {
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(FlexLineValues, mParent, mItems)
+NS_IMPL_CYCLE_COLLECTING_ADDREF(FlexLineValues)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(FlexLineValues)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FlexLineValues)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+FlexLineValues::FlexLineValues(Flex* aParent, const ComputedFlexLineInfo* aLine)
+    : mParent(aParent) {
+  MOZ_ASSERT(aLine,
+             "Should never be instantiated with a null ComputedFlexLineInfo.");
+
+  // Eagerly copy values from aLine, because we're not
+  // going to keep it around.
+  mGrowthState = aLine->mGrowthState;
+
+  // Convert all the app unit values into css pixels.
+  mCrossStart = nsPresContext::AppUnitsToDoubleCSSPixels(aLine->mCrossStart);
+  mCrossSize = nsPresContext::AppUnitsToDoubleCSSPixels(aLine->mCrossSize);
+  mFirstBaselineOffset =
+      nsPresContext::AppUnitsToDoubleCSSPixels(aLine->mFirstBaselineOffset);
+  mLastBaselineOffset =
+      nsPresContext::AppUnitsToDoubleCSSPixels(aLine->mLastBaselineOffset);
+
+  mItems.SetLength(aLine->mItems.Length());
+  uint32_t index = 0;
+  for (auto&& i : aLine->mItems) {
+    FlexItemValues* item = new FlexItemValues(this, &i);
+    mItems.ElementAt(index) = item;
+    index++;
+  }
+}
+
+JSObject* FlexLineValues::WrapObject(JSContext* aCx,
+                                     JS::Handle<JSObject*> aGivenProto) {
+  return FlexLineValues_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+FlexLineGrowthState FlexLineValues::GrowthState() const { return mGrowthState; }
+
+double FlexLineValues::CrossStart() const { return mCrossStart; }
+
+double FlexLineValues::CrossSize() const { return mCrossSize; }
+
+double FlexLineValues::FirstBaselineOffset() const {
+  return mFirstBaselineOffset;
+}
+
+double FlexLineValues::LastBaselineOffset() const {
+  return mLastBaselineOffset;
+}
+
+void FlexLineValues::GetItems(nsTArray<RefPtr<FlexItemValues>>& aResult) {
+  aResult.AppendElements(mItems);
+}
+
+}  // namespace mozilla::dom