1 files changed, 87 insertions, 0 deletions
diff --git a/dom/base/Timeout.cpp b/dom/base/Timeout.cpp
new file mode 100644
index 0000000000..1619231007
--- /dev/null
+++ b/dom/base/Timeout.cpp
@@ -0,0 +1,87 @@
+/* -*- 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 "Timeout.h"
+
+#include "mozilla/dom/TimeoutManager.h"
+#include "nsGlobalWindowInner.h"
+#include "GeckoProfiler.h"
+
+namespace mozilla::dom {
+
+Timeout::Timeout()
+    : mTimeoutId(0),
+      mFiringId(TimeoutManager::InvalidFiringId),
+#ifdef DEBUG
+      mFiringIndex(-1),
+#endif
+      mPopupState(PopupBlocker::openAllowed),
+      mReason(Reason::eTimeoutOrInterval),
+      mNestingLevel(0),
+      mCleared(false),
+      mRunning(false),
+      mIsInterval(false) {
+}
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(Timeout)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(Timeout)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindow)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mScriptHandler)
+  if (tmp->isInList()) {
+    tmp->remove();
+  }
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(Timeout)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindow)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mScriptHandler)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+void Timeout::SetWhenOrTimeRemaining(const TimeStamp& aBaseTime,
+                                     const TimeDuration& aDelay) {
+  MOZ_DIAGNOSTIC_ASSERT(mWindow);
+  mSubmitTime = aBaseTime;
+
+  mSubmitTime = aBaseTime;
+  if (profiler_is_active()) {
+    mCause = profiler_capture_backtrace();
+  }
+
+  // If we are frozen simply set mTimeRemaining to be the "time remaining" in
+  // the timeout (i.e., the interval itself).  This will be used to create a
+  // new mWhen time when the window is thawed.  The end effect is that time does
+  // not appear to pass for frozen windows.
+  if (mWindow->IsFrozen()) {
+    mWhen = TimeStamp();
+    mTimeRemaining = aDelay;
+    return;
+  }
+
+  // Since we are not frozen we must set a precise mWhen target wakeup
+  // time.  Even if we are suspended we want to use this target time so
+  // that it appears time passes while suspended.
+  mWhen = aBaseTime + aDelay;
+  mTimeRemaining = TimeDuration(0);
+}
+
+const TimeStamp& Timeout::When() const {
+  MOZ_DIAGNOSTIC_ASSERT(!mWhen.IsNull());
+  // Note, mWindow->IsFrozen() can be true here.  The Freeze() method calls
+  // When() to calculate the delay to populate mTimeRemaining.
+  return mWhen;
+}
+
+const TimeStamp& Timeout::SubmitTime() const { return mSubmitTime; }
+
+const TimeDuration& Timeout::TimeRemaining() const {
+  MOZ_DIAGNOSTIC_ASSERT(mWhen.IsNull());
+  // Note, mWindow->IsFrozen() can be false here.  The Thaw() method calls
+  // TimeRemaining() to calculate the new When() value.
+  return mTimeRemaining;
+}
+
+}  // namespace mozilla::dom