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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/scheduler/public/web_scheduling_priority.h"
namespace blink {
namespace {
const AtomicString& UserBlockingPriorityKeyword() {
DEFINE_STATIC_LOCAL(const AtomicString, user_blocking_priority,
("user-blocking"));
return user_blocking_priority;
}
const AtomicString& UserVisiblePriorityKeyword() {
DEFINE_STATIC_LOCAL(const AtomicString, user_visible_priority,
("user-visible"));
return user_visible_priority;
}
const AtomicString& BackgroundPriorityKeyword() {
DEFINE_STATIC_LOCAL(const AtomicString, background_priority, ("background"));
return background_priority;
}
} // namespace
AtomicString WebSchedulingPriorityToString(WebSchedulingPriority priority) {
switch (priority) {
case WebSchedulingPriority::kUserBlockingPriority:
return UserBlockingPriorityKeyword();
case WebSchedulingPriority::kUserVisiblePriority:
return UserVisiblePriorityKeyword();
case WebSchedulingPriority::kBackgroundPriority:
return BackgroundPriorityKeyword();
}
NOTREACHED();
return g_empty_atom;
}
WebSchedulingPriority WebSchedulingPriorityFromString(
const AtomicString& priority) {
if (priority == UserBlockingPriorityKeyword())
return WebSchedulingPriority::kUserBlockingPriority;
if (priority == UserVisiblePriorityKeyword())
return WebSchedulingPriority::kUserVisiblePriority;
if (priority == BackgroundPriorityKeyword())
return WebSchedulingPriority::kBackgroundPriority;
NOTREACHED();
return WebSchedulingPriority::kUserVisiblePriority;
}
} // namespace blink
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