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/closewatcher/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 2 kB

Quelle CloseWatcherManager.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 "CloseWatcherManager.h"
#include "CloseWatcher.h"

namespace mozilla::dom {

NS_IMPL_CYCLE_COLLECTION(CloseWatcherManager, mGroups)
NS_IMPL_CYCLE_COLLECTING_ADDREF(CloseWatcherManager)
NS_IMPL_CYCLE_COLLECTING_RELEASE(CloseWatcherManager)

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CloseWatcherManager)
  NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END

// https://html.spec.whatwg.org/multipage/interaction.html#notify-the-close-watcher-manager-about-user-activation
void CloseWatcherManager::NotifyUserInteraction() {
  if (mNextUserInteractionAllowsNewGroup) {
    mAllowedNumberOfGroups += 1;
    mNextUserInteractionAllowsNewGroup = false;
  }
}

bool CloseWatcherManager::CanGrow() const {
  return mGroups.Length() < mAllowedNumberOfGroups;
}

// https://html.spec.whatwg.org/multipage/interaction.html#process-close-watchers
MOZ_CAN_RUN_SCRIPT bool CloseWatcherManager::ProcessCloseRequest() {
  bool processedACloseWatcher = false;
  if (mGroups.IsEmpty()) {
    return processedACloseWatcher;
  }
  auto i = mGroups.Length() - 1;
  auto group = mGroups.ElementAt(i).Clone();
  for (RefPtr<CloseWatcher> watcher : group.BackwardRange()) {
    processedACloseWatcher = true;
    // TODO:(keithamus): https://github.com/whatwg/html/issues/10240 ?
    if (!watcher->RequestToClose()) {
      break;
    }
  }
  if (mAllowedNumberOfGroups > 1) {
    mAllowedNumberOfGroups -= 1;
  }
  return processedACloseWatcher;
}

// https://html.spec.whatwg.org/multipage/interaction.html#establish-a-close-watcher
// step 4-6
void CloseWatcherManager::Add(CloseWatcher& aWatcher) {
  if (CanGrow()) {
    mGroups.AppendElement()->AppendElement(&aWatcher);
  } else {
    MOZ_ASSERT(!mGroups.IsEmpty(),
               "CloseWatcherManager groups must be at least 1");
    auto i = mGroups.Length() - 1;
    MOZ_ASSERT(!mGroups.ElementAt(i).Contains(&aWatcher));
    mGroups.ElementAt(i).AppendElement(&aWatcher);
  }
  mNextUserInteractionAllowsNewGroup = true;
}

// https://html.spec.whatwg.org/multipage/interaction.html#close-watcher-destroy
void CloseWatcherManager::Remove(CloseWatcher& aWatcher) {
  CloseWatcherArray::ForwardIterator iter(mGroups);
  while (iter.HasMore()) {
    auto& group = iter.GetNext();
    group.RemoveElement(&aWatcher);
    if (group.IsEmpty()) {
      iter.Remove();
    }
  }
  mGroups.Compact();
}

bool CloseWatcherManager::Contains(const CloseWatcher& aWatcher) const {
  for (const auto& group : mGroups.BackwardRange()) {
    if (group.Contains(&aWatcher)) {
      return true;
    }
  }
  return false;
}

}  // namespace mozilla::dom

quality85%

¤ Dauer der Verarbeitung: 0.18 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.