1 files changed, 157 insertions, 0 deletions
diff --git a/dom/base/IdleRequest.cpp b/dom/base/IdleRequest.cpp
new file mode 100644
index 000000000..26190f98b
--- /dev/null
+++ b/dom/base/IdleRequest.cpp
@@ -0,0 +1,157 @@
+/* -*- 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 "IdleRequest.h"
+
+#include "mozilla/Function.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/dom/IdleDeadline.h"
+#include "mozilla/dom/Performance.h"
+#include "mozilla/dom/PerformanceTiming.h"
+#include "mozilla/dom/WindowBinding.h"
+#include "nsComponentManagerUtils.h"
+#include "nsGlobalWindow.h"
+#include "nsISupportsPrimitives.h"
+#include "nsPIDOMWindow.h"
+
+namespace mozilla {
+namespace dom {
+
+IdleRequest::IdleRequest(JSContext* aCx, nsPIDOMWindowInner* aWindow,
+                         IdleRequestCallback& aCallback, uint32_t aHandle)
+  : mWindow(aWindow)
+  , mCallback(&aCallback)
+  , mHandle(aHandle)
+  , mTimeoutHandle(Nothing())
+{
+  MOZ_ASSERT(aWindow);
+
+  // Get the calling location.
+  nsJSUtils::GetCallingLocation(aCx, mFileName, &mLineNo, &mColumn);
+}
+
+IdleRequest::~IdleRequest()
+{
+}
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(IdleRequest)
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(IdleRequest)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(IdleRequest)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(IdleRequest)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindow)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mCallback)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(IdleRequest)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindow)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCallback)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IdleRequest)
+  NS_INTERFACE_MAP_ENTRY(nsIRunnable)
+  NS_INTERFACE_MAP_ENTRY(nsICancelableRunnable)
+  NS_INTERFACE_MAP_ENTRY(nsIIncrementalRunnable)
+  NS_INTERFACE_MAP_ENTRY(nsITimeoutHandler)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsITimeoutHandler)
+NS_INTERFACE_MAP_END
+
+nsresult
+IdleRequest::SetTimeout(uint32_t aTimeout)
+{
+  int32_t handle;
+  nsresult rv = nsGlobalWindow::Cast(mWindow)->SetTimeoutOrInterval(
+    this, aTimeout, false, Timeout::Reason::eIdleCallbackTimeout, &handle);
+  mTimeoutHandle = Some(handle);
+
+  return rv;
+}
+
+nsresult
+IdleRequest::Run()
+{
+  if (mCallback) {
+    RunIdleRequestCallback(false);
+  }
+
+  return NS_OK;
+}
+
+nsresult
+IdleRequest::Cancel()
+{
+  mCallback = nullptr;
+  CancelTimeout();
+  if (isInList()) {
+    remove();
+  }
+  Release();
+
+  return NS_OK;
+}
+
+void
+IdleRequest::SetDeadline(TimeStamp aDeadline)
+{
+  mozilla::dom::Performance* perf = mWindow->GetPerformance();
+  mDeadline =
+    perf ? perf->GetDOMTiming()->TimeStampToDOMHighRes(aDeadline) : 0.0;
+}
+
+nsresult
+IdleRequest::RunIdleRequestCallback(bool aDidTimeout)
+{
+  MOZ_ASSERT(NS_IsMainThread());
+
+  if (!aDidTimeout) {
+    CancelTimeout();
+  }
+
+  remove();
+  ErrorResult error;
+  RefPtr<IdleDeadline> deadline =
+    new IdleDeadline(mWindow, aDidTimeout, mDeadline);
+  mCallback->Call(*deadline, error, "requestIdleCallback handler");
+  mCallback = nullptr;
+  Release();
+
+  return error.StealNSResult();
+}
+
+void
+IdleRequest::CancelTimeout()
+{
+  if (mTimeoutHandle.isSome()) {
+    nsGlobalWindow::Cast(mWindow)->ClearTimeoutOrInterval(
+      mTimeoutHandle.value(), Timeout::Reason::eIdleCallbackTimeout);
+  }
+}
+
+nsresult
+IdleRequest::Call()
+{
+  SetDeadline(TimeStamp::Now());
+  return RunIdleRequestCallback(true);
+}
+
+void
+IdleRequest::GetLocation(const char** aFileName, uint32_t* aLineNo,
+                         uint32_t* aColumn)
+{
+  *aFileName = mFileName.get();
+  *aLineNo = mLineNo;
+  *aColumn = mColumn;
+}
+
+void
+IdleRequest::MarkForCC()
+{
+  mCallback->MarkForCC();
+}
+
+} // namespace dom
+} // namespace mozilla