gecko-dev/dom/animation/AnimationUtils.cpp

82 строки
2.1 KiB
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 "AnimationUtils.h"
#include "nsContentUtils.h" // For nsContentUtils::IsCallerChrome
#include "nsDebug.h"
#include "nsIAtom.h"
#include "nsIContent.h"
#include "nsIDocument.h"
#include "nsGlobalWindow.h"
#include "nsString.h"
#include "xpcpublic.h" // For xpc::NativeGlobal
#include "mozilla/Preferences.h"
namespace mozilla {
/* static */ void
AnimationUtils::LogAsyncAnimationFailure(nsCString& aMessage,
const nsIContent* aContent)
{
if (aContent) {
aMessage.AppendLiteral(" [");
aMessage.Append(nsAtomCString(aContent->NodeInfo()->NameAtom()));
nsIAtom* id = aContent->GetID();
if (id) {
aMessage.AppendLiteral(" with id '");
aMessage.Append(nsAtomCString(aContent->GetID()));
aMessage.Append('\'');
}
aMessage.Append(']');
}
aMessage.Append('\n');
printf_stderr("%s", aMessage.get());
}
/* static */ nsIDocument*
AnimationUtils::GetCurrentRealmDocument(JSContext* aCx)
{
nsGlobalWindow* win = xpc::CurrentWindowOrNull(aCx);
if (!win) {
return nullptr;
}
return win->GetDoc();
}
/* static */ bool
AnimationUtils::IsOffscreenThrottlingEnabled()
{
static bool sOffscreenThrottlingEnabled;
static bool sPrefCached = false;
if (!sPrefCached) {
sPrefCached = true;
Preferences::AddBoolVarCache(&sOffscreenThrottlingEnabled,
"dom.animations.offscreen-throttling");
}
return sOffscreenThrottlingEnabled;
}
/* static */ bool
AnimationUtils::IsCoreAPIEnabledForCaller()
{
static bool sCoreAPIEnabled;
static bool sPrefCached = false;
if (!sPrefCached) {
sPrefCached = true;
Preferences::AddBoolVarCache(&sCoreAPIEnabled,
"dom.animations-api.core.enabled");
}
return sCoreAPIEnabled || nsContentUtils::IsCallerChrome();
}
} // namespace mozilla