blob: 45cf79fa91c916b0841bcd14f4f8b1fb4552b49d [file] [log] [blame]
// 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), weak_ptr_factory_(this) {
}
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