| // Copyright 2014 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 "components/dom_distiller/core/distilled_page_prefs.h" |
| |
| #include "base/bind.h" |
| #include "base/location.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/observer_list.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "components/dom_distiller/core/pref_names.h" |
| #include "components/pref_registry/pref_registry_syncable.h" |
| #include "components/prefs/pref_service.h" |
| |
| namespace dom_distiller { |
| |
| DistilledPagePrefs::DistilledPagePrefs(PrefService* pref_service) |
| : pref_service_(pref_service) {} |
| |
| DistilledPagePrefs::~DistilledPagePrefs() {} |
| |
| // static |
| void DistilledPagePrefs::RegisterProfilePrefs( |
| user_prefs::PrefRegistrySyncable* registry) { |
| registry->RegisterIntegerPref( |
| prefs::kTheme, DistilledPagePrefs::THEME_LIGHT, |
| user_prefs::PrefRegistrySyncable::SYNCABLE_PREF); |
| registry->RegisterIntegerPref( |
| prefs::kFont, DistilledPagePrefs::FONT_FAMILY_SANS_SERIF, |
| user_prefs::PrefRegistrySyncable::SYNCABLE_PREF); |
| registry->RegisterDoublePref(prefs::kFontScale, 1.0); |
| registry->RegisterBooleanPref( |
| prefs::kReaderForAccessibility, false, |
| user_prefs::PrefRegistrySyncable::SYNCABLE_PREF); |
| } |
| |
| void DistilledPagePrefs::SetFontFamily( |
| DistilledPagePrefs::FontFamily new_font_family) { |
| pref_service_->SetInteger(prefs::kFont, new_font_family); |
| base::ThreadTaskRunnerHandle::Get()->PostTask( |
| FROM_HERE, |
| base::BindOnce(&DistilledPagePrefs::NotifyOnChangeFontFamily, |
| weak_ptr_factory_.GetWeakPtr(), new_font_family)); |
| } |
| |
| DistilledPagePrefs::FontFamily DistilledPagePrefs::GetFontFamily() { |
| int font_family = pref_service_->GetInteger(prefs::kFont); |
| if (font_family < 0 || |
| font_family >= DistilledPagePrefs::FONT_FAMILY_NUM_ENTRIES) { |
| // Persisted data was incorrect, trying to clean it up by storing the |
| // default. |
| SetFontFamily(DistilledPagePrefs::FONT_FAMILY_SANS_SERIF); |
| return DistilledPagePrefs::FONT_FAMILY_SANS_SERIF; |
| } |
| return static_cast<FontFamily>(font_family); |
| } |
| |
| void DistilledPagePrefs::SetTheme(DistilledPagePrefs::Theme new_theme) { |
| pref_service_->SetInteger(prefs::kTheme, new_theme); |
| base::ThreadTaskRunnerHandle::Get()->PostTask( |
| FROM_HERE, base::BindOnce(&DistilledPagePrefs::NotifyOnChangeTheme, |
| weak_ptr_factory_.GetWeakPtr(), new_theme)); |
| } |
| |
| DistilledPagePrefs::Theme DistilledPagePrefs::GetTheme() { |
| int theme = pref_service_->GetInteger(prefs::kTheme); |
| if (theme < 0 || theme >= DistilledPagePrefs::THEME_NUM_ENTRIES) { |
| // Persisted data was incorrect, trying to clean it up by storing the |
| // default. |
| SetTheme(DistilledPagePrefs::THEME_LIGHT); |
| return DistilledPagePrefs::THEME_LIGHT; |
| } |
| return static_cast<Theme>(theme); |
| } |
| |
| void DistilledPagePrefs::SetFontScaling(float scaling) { |
| pref_service_->SetDouble(prefs::kFontScale, scaling); |
| base::ThreadTaskRunnerHandle::Get()->PostTask( |
| FROM_HERE, base::BindOnce(&DistilledPagePrefs::NotifyOnChangeFontScaling, |
| weak_ptr_factory_.GetWeakPtr(), scaling)); |
| } |
| |
| float DistilledPagePrefs::GetFontScaling() { |
| float scaling = pref_service_->GetDouble(prefs::kFontScale); |
| if (scaling < 0.4 || scaling > 2.5) { |
| // Persisted data was incorrect, trying to clean it up by storing the |
| // default. |
| SetFontScaling(1.0); |
| return 1.0; |
| } |
| return scaling; |
| } |
| |
| void DistilledPagePrefs::AddObserver(Observer* obs) { |
| observers_.AddObserver(obs); |
| } |
| |
| void DistilledPagePrefs::RemoveObserver(Observer* obs) { |
| observers_.RemoveObserver(obs); |
| } |
| |
| void DistilledPagePrefs::NotifyOnChangeFontFamily( |
| DistilledPagePrefs::FontFamily new_font_family) { |
| for (Observer& observer : observers_) |
| observer.OnChangeFontFamily(new_font_family); |
| } |
| |
| void DistilledPagePrefs::NotifyOnChangeTheme( |
| DistilledPagePrefs::Theme new_theme) { |
| for (Observer& observer : observers_) |
| observer.OnChangeTheme(new_theme); |
| } |
| |
| void DistilledPagePrefs::NotifyOnChangeFontScaling(float scaling) { |
| for (Observer& observer : observers_) |
| observer.OnChangeFontScaling(scaling); |
| } |
| |
| } // namespace dom_distiller |