Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/sources/formale Sprachen/C/Firefox/dom/grid/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 4 kB

Quelle Grid.cpp Sprache: C

/* -*- 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 "Grid.h"

#include "GridArea.h"
#include "GridDimension.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/GridBinding.h"
#include "nsGridContainerFrame.h"
#include "nsTHashSet.h"

namespace mozilla::dom {

NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(Grid)

NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(Grid)
  tmp->ForgetFrame();
  NS_IMPL_CYCLE_COLLECTION_UNLINK(mParent, mRows, mCols, mAreas)
  NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
NS_IMPL_CYCLE_COLLECTION_UNLINK_END

NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(Grid)
  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParent, mRows, mCols, mAreas)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END

NS_IMPL_CYCLE_COLLECTING_ADDREF(Grid)
NS_IMPL_CYCLE_COLLECTING_RELEASE(Grid)

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Grid)
  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
  NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END

Grid::Grid(nsISupports* aParent, nsGridContainerFrame* aFrame)
    : mParent(do_QueryInterface(aParent)),
      mFrame(aFrame),
      mRows(new GridDimension(this)),
      mCols(new GridDimension(this)) {
  MOZ_ASSERT(aFrame,
             "Should never be instantiated with a null nsGridContainerFrame");

  aFrame->SetProperty(nsGridContainerFrame::GridFragmentInfo(), this);

  // Construct areas first, because lines may need to reference them
  // to extract additional names for boundary lines.

  // Add implicit areas first. Track the names that we add here, because
  // we will ignore future explicit areas with the same name.
  nsTHashSet<RefPtr<nsAtom>> namesSeen;
  nsGridContainerFrame::ImplicitNamedAreas* implicitAreas =
      aFrame->GetImplicitNamedAreas();
  if (implicitAreas) {
    for (auto iter = implicitAreas->iter(); !iter.done(); iter.next()) {
      auto& areaInfo = iter.get().value();
      namesSeen.Insert(areaInfo.name.AsAtom());
      GridArea* area =
          new GridArea(this, areaInfo.name.AsAtom(), GridDeclaration::Implicit,
                       areaInfo.rows.start, areaInfo.rows.end,
                       areaInfo.columns.start, areaInfo.columns.end);
      mAreas.AppendElement(area);
    }
  }

  // Add explicit areas next, as long as they don't have the same name
  // as the implicit areas, because the implicit values override what was
  // initially available in the explicit areas.
  if (auto* explicitAreas = aFrame->GetExplicitNamedAreas()) {
    for (auto& areaInfo : explicitAreas->AsSpan()) {
      if (!namesSeen.Contains(areaInfo.name.AsAtom())) {
        GridArea* area = new GridArea(
            this, areaInfo.name.AsAtom(), GridDeclaration::Explicit,
            areaInfo.rows.start, areaInfo.rows.end, areaInfo.columns.start,
            areaInfo.columns.end);
        mAreas.AppendElement(area);
      }
    }
  }

  // Now construct the tracks and lines.
  const ComputedGridTrackInfo* rowTrackInfo = aFrame->GetComputedTemplateRows();
  const ComputedGridLineInfo* rowLineInfo =
      aFrame->GetComputedTemplateRowLines();
  mRows->SetTrackInfo(rowTrackInfo);
  mRows->SetLineInfo(rowTrackInfo, rowLineInfo, mAreas, true);

  const ComputedGridTrackInfo* columnTrackInfo =
      aFrame->GetComputedTemplateColumns();
  const ComputedGridLineInfo* columnLineInfo =
      aFrame->GetComputedTemplateColumnLines();
  mCols->SetTrackInfo(columnTrackInfo);
  mCols->SetLineInfo(columnTrackInfo, columnLineInfo, mAreas, false);
}

Grid::~Grid() = default;

JSObject* Grid::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
  return Grid_Binding::Wrap(aCx, this, aGivenProto);
}

void Grid::ForgetFrame() {
  if (mFrame.IsAlive()) {
    mFrame->RemoveProperty(nsGridContainerFrame::GridFragmentInfo());
    mFrame.Clear(mFrame->PresContext()->GetPresShell());
  }
}

GridDimension* Grid::Rows() const { return mRows; }

GridDimension* Grid::Cols() const { return mCols; }

void Grid::GetAreas(nsTArray<RefPtr<GridArea>>& aAreas) const {
  aAreas = mAreas.Clone();
}

}  // namespace mozilla::dom

quality90%

¤ Dauer der Verarbeitung: 0.17 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.