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// Copyright (c) 2012 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 "chrome/browser/chromeos/display/display_preferences.h"
#include "ash/display/display_controller.h"
#include "ash/display/display_manager.h"
#include "ash/shell.h"
#include "base/string16.h"
#include "base/string_number_conversions.h"
#include "base/string_util.h"
#include "base/values.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chromeos/login/user_manager.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/prefs/scoped_user_pref_update.h"
#include "chrome/common/pref_names.h"
#include "googleurl/src/url_canon.h"
#include "googleurl/src/url_util.h"
#include "ui/gfx/display.h"
#include "ui/gfx/insets.h"
namespace chromeos {
namespace {
// This kind of boilerplates should be done by base::JSONValueConverter but it
// doesn't support classes like gfx::Insets for now.
// TODO(mukai): fix base::JSONValueConverter and use it here.
bool ValueToInsets(const base::DictionaryValue& value, gfx::Insets* insets) {
DCHECK(insets);
int top = 0;
int left = 0;
int bottom = 0;
int right = 0;
if (value.GetInteger("top", &top) &&
value.GetInteger("left", &left) &&
value.GetInteger("bottom", &bottom) &&
value.GetInteger("right", &right)) {
insets->Set(top, left, bottom, right);
return true;
}
return false;
}
void InsetsToValue(const gfx::Insets& insets, base::DictionaryValue* value) {
DCHECK(value);
value->SetInteger("top", insets.top());
value->SetInteger("left", insets.left());
value->SetInteger("bottom", insets.bottom());
value->SetInteger("right", insets.right());
}
ash::internal::DisplayManager* GetDisplayManager() {
return ash::Shell::GetInstance()->display_manager();
}
// Returns true id the current user can write display preferences to
// Local State.
bool IsValidUser() {
UserManager* user_manager = UserManager::Get();
return (user_manager->IsUserLoggedIn() &&
!user_manager->IsLoggedInAsDemoUser() &&
!user_manager->IsLoggedInAsGuest() &&
!user_manager->IsLoggedInAsStub());
}
void NotifyDisplayLayoutChanged() {
PrefService* local_state = g_browser_process->local_state();
ash::DisplayController* display_controller =
ash::Shell::GetInstance()->display_controller();
ash::DisplayLayout default_layout(
static_cast<ash::DisplayLayout::Position>(local_state->GetInteger(
prefs::kSecondaryDisplayLayout)),
local_state->GetInteger(prefs::kSecondaryDisplayOffset));
display_controller->SetDefaultDisplayLayout(default_layout);
const base::DictionaryValue* layouts = local_state->GetDictionary(
prefs::kSecondaryDisplays);
for (base::DictionaryValue::key_iterator it = layouts->begin_keys();
it != layouts->end_keys(); ++it) {
const base::Value* value = NULL;
if (!layouts->Get(*it, &value) || value == NULL) {
LOG(WARNING) << "Can't find dictionary value for " << *it;
continue;
}
ash::DisplayLayout layout;
if (!ash::DisplayLayout::ConvertFromValue(*value, &layout)) {
LOG(WARNING) << "Invalid preference value for " << *it;
continue;
}
int64 id = gfx::Display::kInvalidDisplayID;
if (!base::StringToInt64(*it, &id) || id == gfx::Display::kInvalidDisplayID)
continue;
display_controller->SetLayoutForDisplayId(id, layout);
}
}
void NotifyDisplayOverscans() {
PrefService* local_state = g_browser_process->local_state();
ash::DisplayController* display_controller =
ash::Shell::GetInstance()->display_controller();
const base::DictionaryValue* overscans = local_state->GetDictionary(
prefs::kDisplayOverscans);
for (base::DictionaryValue::key_iterator it = overscans->begin_keys();
it != overscans->end_keys(); ++it) {
int64 display_id = gfx::Display::kInvalidDisplayID;
if (!base::StringToInt64(*it, &display_id)) {
LOG(WARNING) << "Invalid key, cannot convert to display ID: " << *it;
continue;
}
const base::DictionaryValue* value = NULL;
if (!overscans->GetDictionary(*it, &value) || value == NULL) {
LOG(WARNING) << "Can't find dictionary value for " << *it;
continue;
}
gfx::Insets insets;
if (!ValueToInsets(*value, &insets)) {
LOG(WARNING) << "Can't convert the data into insets for " << *it;
continue;
}
display_controller->SetOverscanInsets(display_id, insets);
}
}
} // namespace
void RegisterDisplayLocalStatePrefs(PrefServiceSimple* local_state) {
// The default secondary display layout.
local_state->RegisterIntegerPref(prefs::kSecondaryDisplayLayout,
static_cast<int>(ash::DisplayLayout::RIGHT));
// The default offset of the secondary display position from the primary
// display.
local_state->RegisterIntegerPref(prefs::kSecondaryDisplayOffset, 0);
// Per-display preference.
local_state->RegisterDictionaryPref(prefs::kSecondaryDisplays);
// Primary output name.
local_state->RegisterInt64Pref(prefs::kPrimaryDisplayID,
gfx::Display::kInvalidDisplayID);
// Display overscan preference.
local_state->RegisterDictionaryPref(prefs::kDisplayOverscans);
}
void SetDisplayLayoutPref(const gfx::Display& display,
int layout,
int offset) {
ash::DisplayLayout display_layout(
static_cast<ash::DisplayLayout::Position>(layout), offset);
if (IsValidUser()) {
PrefService* local_state = g_browser_process->local_state();
DictionaryPrefUpdate update(local_state, prefs::kSecondaryDisplays);
std::string name = base::Int64ToString(display.id());
DCHECK(!name.empty());
base::DictionaryValue* pref_data = update.Get();
scoped_ptr<base::Value>layout_value(new base::DictionaryValue());
if (pref_data->HasKey(name)) {
base::Value* value = NULL;
if (pref_data->Get(name, &value) && value != NULL)
layout_value.reset(value->DeepCopy());
}
if (ash::DisplayLayout::ConvertToValue(display_layout, layout_value.get()))
pref_data->Set(name, layout_value.release());
local_state->SetInteger(prefs::kSecondaryDisplayLayout, layout);
local_state->SetInteger(prefs::kSecondaryDisplayOffset, offset);
}
ash::Shell::GetInstance()->display_controller()->SetLayoutForDisplayId(
display.id(), display_layout);
}
void StorePrimaryDisplayIDPref(int64 display_id) {
if (!IsValidUser())
return;
PrefService* local_state = g_browser_process->local_state();
if (GetDisplayManager()->IsInternalDisplayId(display_id))
local_state->ClearPref(prefs::kPrimaryDisplayID);
else
local_state->SetInt64(prefs::kPrimaryDisplayID, display_id);
}
void SetDisplayOverscan(const gfx::Display& display,
const gfx::Insets& insets) {
if (IsValidUser()) {
DictionaryPrefUpdate update(
g_browser_process->local_state(), prefs::kDisplayOverscans);
const std::string id = base::Int64ToString(display.id());
base::DictionaryValue* pref_data = update.Get();
base::DictionaryValue* insets_value = new base::DictionaryValue();
InsetsToValue(insets, insets_value);
pref_data->Set(id, insets_value);
}
ash::Shell::GetInstance()->display_controller()->SetOverscanInsets(
display.id(), insets);
}
void SetPrimaryDisplayIDPref(int64 display_id) {
StorePrimaryDisplayIDPref(display_id);
ash::Shell::GetInstance()->display_controller()->SetPrimaryDisplayId(
display_id);
}
void NotifyDisplayLocalStatePrefChanged() {
PrefService* local_state = g_browser_process->local_state();
ash::Shell::GetInstance()->display_controller()->SetPrimaryDisplayId(
local_state->GetInt64(prefs::kPrimaryDisplayID));
NotifyDisplayLayoutChanged();
NotifyDisplayOverscans();
}
} // namespace chromeos
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