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f54ee076ae
Backed out changeset b1e4c01e63b8 (bug 708901) Backed out changeset 37b52cce83c0 (bug 708901) Backed out changeset eee75f33f060 (bug 708901) Backed out changeset 479bf64c7986 (bug 708901) Backed out changeset 15a8fb94d15d (bug 708901) Backed out changeset be31ccd9a61d (bug 708901) Backed out changeset fc54f4eaedd5 (bug 708901) Backed out changeset 03c3a56c3d13 (bug 708901) Backed out changeset 73f11d3c1298 (bug 708901) Backed out changeset aed22fd80893 (bug 708901) Backed out changeset 74d8249fbe7e (bug 708901) Backed out changeset acb725eb3c1d (bug 1184468) Backed out changeset 70f3ea6efec4 (bug 1184468)
97 lines
3.5 KiB
C++
97 lines
3.5 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 "Grid.h"
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#include "GridArea.h"
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#include "GridDimension.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/GridBinding.h"
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#include "nsGridContainerFrame.h"
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namespace mozilla::dom {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Grid, mParent, mRows, mCols, mAreas)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(Grid)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(Grid)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Grid)
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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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Grid::Grid(nsISupports* aParent, nsGridContainerFrame* aFrame)
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: mParent(do_QueryInterface(aParent)),
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mRows(new GridDimension(this)),
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mCols(new GridDimension(this)) {
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MOZ_ASSERT(aFrame,
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"Should never be instantiated with a null nsGridContainerFrame");
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// Construct areas first, because lines may need to reference them
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// to extract additional names for boundary lines.
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// Add implicit areas first. Track the names that we add here, because
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// we will ignore future explicit areas with the same name.
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nsTHashtable<nsRefPtrHashKey<nsAtom>> namesSeen;
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nsGridContainerFrame::ImplicitNamedAreas* implicitAreas =
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aFrame->GetImplicitNamedAreas();
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if (implicitAreas) {
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for (auto iter = implicitAreas->iter(); !iter.done(); iter.next()) {
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auto& areaInfo = iter.get().value();
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namesSeen.PutEntry(areaInfo.name.AsAtom());
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GridArea* area =
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new GridArea(this, areaInfo.name.AsAtom(), GridDeclaration::Implicit,
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areaInfo.rows.start, areaInfo.rows.end,
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areaInfo.columns.start, areaInfo.columns.end);
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mAreas.AppendElement(area);
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}
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}
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// Add explicit areas next, as long as they don't have the same name
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// as the implicit areas, because the implicit values override what was
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// initially available in the explicit areas.
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if (auto* explicitAreas = aFrame->GetExplicitNamedAreas()) {
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for (auto& areaInfo : explicitAreas->AsSpan()) {
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if (!namesSeen.Contains(areaInfo.name.AsAtom())) {
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GridArea* area = new GridArea(
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this, areaInfo.name.AsAtom(), GridDeclaration::Explicit,
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areaInfo.rows.start, areaInfo.rows.end, areaInfo.columns.start,
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areaInfo.columns.end);
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mAreas.AppendElement(area);
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}
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}
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}
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// Now construct the tracks and lines.
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const ComputedGridTrackInfo* rowTrackInfo = aFrame->GetComputedTemplateRows();
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const ComputedGridLineInfo* rowLineInfo =
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aFrame->GetComputedTemplateRowLines();
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mRows->SetTrackInfo(rowTrackInfo);
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mRows->SetLineInfo(rowTrackInfo, rowLineInfo, mAreas, true);
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const ComputedGridTrackInfo* columnTrackInfo =
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aFrame->GetComputedTemplateColumns();
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const ComputedGridLineInfo* columnLineInfo =
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aFrame->GetComputedTemplateColumnLines();
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mCols->SetTrackInfo(columnTrackInfo);
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mCols->SetLineInfo(columnTrackInfo, columnLineInfo, mAreas, false);
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}
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Grid::~Grid() = default;
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JSObject* Grid::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
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return Grid_Binding::Wrap(aCx, this, aGivenProto);
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}
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GridDimension* Grid::Rows() const { return mRows; }
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GridDimension* Grid::Cols() const { return mCols; }
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void Grid::GetAreas(nsTArray<RefPtr<GridArea>>& aAreas) const {
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aAreas = mAreas.Clone();
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}
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} // namespace mozilla::dom
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