forked from mirrors/gecko-dev
09a4b54b80
MozReview-Commit-ID: 9xRBo1VVt0S --HG-- extra : rebase_source : 1f580126e78ea1e7c5d8d18f2fd9f5876541a893
108 lines
2.6 KiB
C++
108 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "FlexLine.h"
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#include "FlexItem.h"
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#include "mozilla/dom/FlexBinding.h"
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#include "nsFlexContainerFrame.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(FlexLine, mParent, mItems)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(FlexLine)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(FlexLine)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FlexLine)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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FlexLine::FlexLine(Flex* aParent,
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const ComputedFlexLineInfo* aLine)
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: mParent(aParent)
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{
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MOZ_ASSERT(aLine,
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"Should never be instantiated with a null ComputedFlexLineInfo.");
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// Eagerly copy values from aLine, because we're not
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// going to keep it around.
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switch (aLine->mGrowthState) {
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case ComputedFlexLineInfo::GrowthState::SHRINKING:
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mGrowthState = FlexLineGrowthState::Shrinking;
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break;
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case ComputedFlexLineInfo::GrowthState::GROWING:
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mGrowthState = FlexLineGrowthState::Growing;
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break;
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default:
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mGrowthState = FlexLineGrowthState::Unchanged;
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};
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// Convert all the app unit values into css pixels.
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mCrossStart = nsPresContext::AppUnitsToDoubleCSSPixels(
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aLine->mCrossStart);
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mCrossSize = nsPresContext::AppUnitsToDoubleCSSPixels(
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aLine->mCrossSize);
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mFirstBaselineOffset = nsPresContext::AppUnitsToDoubleCSSPixels(
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aLine->mFirstBaselineOffset);
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mLastBaselineOffset = nsPresContext::AppUnitsToDoubleCSSPixels(
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aLine->mLastBaselineOffset);
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mItems.SetLength(aLine->mItems.Length());
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uint32_t index = 0;
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for (auto&& i : aLine->mItems) {
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FlexItem* item = new FlexItem(this, &i);
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mItems.ElementAt(index) = item;
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index++;
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}
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}
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JSObject*
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FlexLine::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return FlexLineBinding::Wrap(aCx, this, aGivenProto);
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}
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FlexLineGrowthState
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FlexLine::GrowthState() const
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{
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return mGrowthState;
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}
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double
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FlexLine::CrossStart() const
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{
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return mCrossStart;
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}
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double
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FlexLine::CrossSize() const
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{
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return mCrossSize;
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}
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double
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FlexLine::FirstBaselineOffset() const
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{
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return mFirstBaselineOffset;
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}
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double
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FlexLine::LastBaselineOffset() const
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{
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return mLastBaselineOffset;
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}
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void
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FlexLine::GetItems(nsTArray<RefPtr<FlexItem>>& aResult)
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{
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aResult.AppendElements(mItems);
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}
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} // namespace dom
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} // namespace mozilla
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