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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_PRELOADING_PRELOADING_PREFS_H_
#define CHROME_BROWSER_PRELOADING_PRELOADING_PREFS_H_
#include "content/public/browser/preloading.h"
namespace user_prefs {
class PrefRegistrySyncable;
}
class PrefService;
namespace prefetch {
// Enum describing when to allow network predictions. The numerical value is
// stored in the prefs file, therefore the same enum with the same order must be
// used by the platform-dependent components.
enum class NetworkPredictionOptions {
kStandard = 0,
// This option is deprecated. It is now equivalent to kStandard.
kWifiOnlyDeprecated = 1,
kDisabled = 2,
kExtended = 3,
kDefault = kWifiOnlyDeprecated,
};
// Enum representing possible values of the Preload Pages opt-in state. These
// values are persisted to logs. Entries should not be renumbered and numeric
// values should never be reused. This is the the sanitized counterpart to
// NetworkPredictionOptions, which is persisted in prefs and cannot be modified
// arbitrarily. Prefer using PreloadPagesState over NetworkPredictionOptions to
// avoid having to deal with deprecated values.
// A Java counterpart will be generated for this enum.
// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.chrome.browser.prefetch.settings
enum class PreloadPagesState {
// The user is not opted into preloading.
kNoPreloading = 0,
// The user selected standard preloading.
kStandardPreloading = 1,
// The user selected extended preloading.
kExtendedPreloading = 2,
kMaxValue = kExtendedPreloading,
};
// Returns the PreloadPagesState corresponding to the NetworkPredictionOptions
// setting persisted in prefs. Note that this will return the pref value
// regardless of whether preloading is disabled via Finch. Prefer using
// IsSomePreloadingEnabled in most cases.
PreloadPagesState GetPreloadPagesState(const PrefService& prefs);
// Converts the given PreloadPagesState to a NetworkPredictionOptions and
// persist it in prefs.
void SetPreloadPagesState(PrefService* prefs, PreloadPagesState state);
// Returns PreloadingEligibility:kEligible if preloading is not entirely
// disabled. Returns the first blocking reason encountered otherwise.
content::PreloadingEligibility IsSomePreloadingEnabled(
const PrefService& prefs);
void RegisterPredictionOptionsProfilePrefs(
user_prefs::PrefRegistrySyncable* registry);
} // namespace prefetch
#endif // CHROME_BROWSER_PRELOADING_PRELOADING_PREFS_H_
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