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// 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 "chrome/browser/signin/easy_unlock_screenlock_state_handler.h"
#include "base/bind.h"
#include "base/strings/string16.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/chromeos/chromeos_utils.h"
#include "chrome/grit/generated_resources.h"
#include "ui/base/l10n/l10n_util.h"
namespace {
ScreenlockBridge::UserPodCustomIcon GetIconForState(
EasyUnlockScreenlockStateHandler::State state) {
switch (state) {
case EasyUnlockScreenlockStateHandler::STATE_NO_BLUETOOTH:
case EasyUnlockScreenlockStateHandler::STATE_NO_PHONE:
case EasyUnlockScreenlockStateHandler::STATE_PHONE_NOT_AUTHENTICATED:
case EasyUnlockScreenlockStateHandler::STATE_PHONE_LOCKED:
case EasyUnlockScreenlockStateHandler::STATE_PHONE_UNLOCKABLE:
case EasyUnlockScreenlockStateHandler::STATE_PHONE_UNSUPPORTED:
case EasyUnlockScreenlockStateHandler::STATE_RSSI_TOO_LOW:
return ScreenlockBridge::USER_POD_CUSTOM_ICON_LOCKED;
case EasyUnlockScreenlockStateHandler::STATE_TX_POWER_TOO_HIGH:
return ScreenlockBridge::USER_POD_CUSTOM_ICON_LOCKED_WITH_PROXIMITY_HINT;
case EasyUnlockScreenlockStateHandler::STATE_BLUETOOTH_CONNECTING:
return ScreenlockBridge::USER_POD_CUSTOM_ICON_SPINNER;
case EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED:
return ScreenlockBridge::USER_POD_CUSTOM_ICON_UNLOCKED;
default:
return ScreenlockBridge::USER_POD_CUSTOM_ICON_NONE;
}
}
bool HardlockOnClick(EasyUnlockScreenlockStateHandler::State state) {
return state != EasyUnlockScreenlockStateHandler::STATE_INACTIVE;
}
size_t GetTooltipResourceId(EasyUnlockScreenlockStateHandler::State state) {
switch (state) {
case EasyUnlockScreenlockStateHandler::STATE_NO_BLUETOOTH:
return IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_NO_BLUETOOTH;
case EasyUnlockScreenlockStateHandler::STATE_NO_PHONE:
return IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_NO_PHONE;
case EasyUnlockScreenlockStateHandler::STATE_PHONE_NOT_AUTHENTICATED:
return IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_PHONE_NOT_AUTHENTICATED;
case EasyUnlockScreenlockStateHandler::STATE_PHONE_LOCKED:
return IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_PHONE_LOCKED;
case EasyUnlockScreenlockStateHandler::STATE_PHONE_UNLOCKABLE:
return IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_PHONE_UNLOCKABLE;
case EasyUnlockScreenlockStateHandler::STATE_RSSI_TOO_LOW:
return IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_RSSI_TOO_LOW;
case EasyUnlockScreenlockStateHandler::STATE_TX_POWER_TOO_HIGH:
return IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_TX_POWER_TOO_HIGH;
case EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED:
return IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_HARDLOCK_INSTRUCTIONS;
case EasyUnlockScreenlockStateHandler::STATE_PHONE_UNSUPPORTED:
return IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_UNSUPPORTED_ANDROID_VERSION;
default:
return 0;
}
}
bool TooltipContainsDeviceType(EasyUnlockScreenlockStateHandler::State state) {
return state == EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED ||
state == EasyUnlockScreenlockStateHandler::STATE_PHONE_UNLOCKABLE ||
state == EasyUnlockScreenlockStateHandler::STATE_NO_BLUETOOTH ||
state == EasyUnlockScreenlockStateHandler::STATE_PHONE_UNSUPPORTED ||
state == EasyUnlockScreenlockStateHandler::STATE_RSSI_TOO_LOW ||
state == EasyUnlockScreenlockStateHandler::STATE_TX_POWER_TOO_HIGH;
}
} // namespace
EasyUnlockScreenlockStateHandler::EasyUnlockScreenlockStateHandler(
const std::string& user_email,
HardlockState initial_hardlock_state,
ScreenlockBridge* screenlock_bridge)
: state_(STATE_INACTIVE),
user_email_(user_email),
screenlock_bridge_(screenlock_bridge),
hardlock_state_(initial_hardlock_state),
hardlock_ui_shown_(false),
is_trial_run_(false) {
DCHECK(screenlock_bridge_);
screenlock_bridge_->AddObserver(this);
}
EasyUnlockScreenlockStateHandler::~EasyUnlockScreenlockStateHandler() {
screenlock_bridge_->RemoveObserver(this);
// Make sure the screenlock state set by this gets cleared.
ChangeState(STATE_INACTIVE);
}
bool EasyUnlockScreenlockStateHandler::IsActive() const {
return state_ != STATE_INACTIVE;
}
bool EasyUnlockScreenlockStateHandler::InStateValidOnRemoteAuthFailure() const {
// Note that NO_PHONE is not valid in this case because the phone may close
// the connection if the auth challenge sent to it is invalid. This case
// should be handled as authentication failure.
return state_ == EasyUnlockScreenlockStateHandler::STATE_NO_BLUETOOTH ||
state_ == EasyUnlockScreenlockStateHandler::STATE_PHONE_LOCKED;
}
void EasyUnlockScreenlockStateHandler::ChangeState(State new_state) {
if (state_ == new_state)
return;
state_ = new_state;
// If lock screen is not active or it forces offline password, just cache the
// current state. The screenlock state will get refreshed in |ScreenDidLock|.
if (!screenlock_bridge_->IsLocked())
return;
// Do nothing when auth type is online.
if (screenlock_bridge_->lock_handler()->GetAuthType(user_email_) ==
ScreenlockBridge::LockHandler::ONLINE_SIGN_IN) {
return;
}
// No hardlock UI for trial run.
if (!is_trial_run_ && hardlock_state_ != NO_HARDLOCK) {
ShowHardlockUI();
return;
}
UpdateScreenlockAuthType();
ScreenlockBridge::UserPodCustomIcon icon = GetIconForState(state_);
if (icon == ScreenlockBridge::USER_POD_CUSTOM_ICON_NONE) {
screenlock_bridge_->lock_handler()->HideUserPodCustomIcon(user_email_);
return;
}
ScreenlockBridge::UserPodCustomIconOptions icon_options;
icon_options.SetIcon(icon);
// Don't hardlock on trial run.
if (!is_trial_run_ && HardlockOnClick(state_))
icon_options.SetHardlockOnClick();
UpdateTooltipOptions(is_trial_run_, &icon_options);
// For states without tooltips, we still need to set an accessibility label.
if (state_ == EasyUnlockScreenlockStateHandler::STATE_BLUETOOTH_CONNECTING) {
icon_options.SetAriaLabel(
l10n_util::GetStringUTF16(IDS_SMART_LOCK_SPINNER_ACCESSIBILITY_LABEL));
}
screenlock_bridge_->lock_handler()->ShowUserPodCustomIcon(user_email_,
icon_options);
}
void EasyUnlockScreenlockStateHandler::SetHardlockState(
HardlockState new_state) {
if (hardlock_state_ == new_state)
return;
if (new_state == LOGIN_FAILED && hardlock_state_ != NO_HARDLOCK)
return;
hardlock_state_ = new_state;
// If hardlock_state_ was set to NO_HARDLOCK, this means the screen is about
// to get unlocked. No need to update it in this case.
if (hardlock_state_ != NO_HARDLOCK) {
hardlock_ui_shown_ = false;
RefreshScreenlockState();
}
}
void EasyUnlockScreenlockStateHandler::MaybeShowHardlockUI() {
if (hardlock_state_ != NO_HARDLOCK)
ShowHardlockUI();
}
void EasyUnlockScreenlockStateHandler::SetTrialRun() {
if (is_trial_run_)
return;
is_trial_run_ = true;
RefreshScreenlockState();
}
void EasyUnlockScreenlockStateHandler::OnScreenDidLock() {
RefreshScreenlockState();
}
void EasyUnlockScreenlockStateHandler::OnScreenDidUnlock() {
if (hardlock_state_ == LOGIN_FAILED)
hardlock_state_ = NO_HARDLOCK;
hardlock_ui_shown_ = false;
is_trial_run_ = false;
}
void EasyUnlockScreenlockStateHandler::OnFocusedUserChanged(
const std::string& user_id) {
}
void EasyUnlockScreenlockStateHandler::RefreshScreenlockState() {
State last_state = state_;
// This should force updating screenlock state.
state_ = STATE_INACTIVE;
ChangeState(last_state);
}
void EasyUnlockScreenlockStateHandler::ShowHardlockUI() {
DCHECK(hardlock_state_ != NO_HARDLOCK);
if (!screenlock_bridge_->IsLocked())
return;
// Do not override online signin.
const ScreenlockBridge::LockHandler::AuthType existing_auth_type =
screenlock_bridge_->lock_handler()->GetAuthType(user_email_);
if (existing_auth_type == ScreenlockBridge::LockHandler::ONLINE_SIGN_IN)
return;
if (existing_auth_type != ScreenlockBridge::LockHandler::OFFLINE_PASSWORD) {
screenlock_bridge_->lock_handler()->SetAuthType(
user_email_,
ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
base::string16());
}
if (hardlock_state_ == NO_PAIRING) {
screenlock_bridge_->lock_handler()->HideUserPodCustomIcon(user_email_);
hardlock_ui_shown_ = false;
return;
}
if (hardlock_ui_shown_)
return;
ScreenlockBridge::UserPodCustomIconOptions icon_options;
if (hardlock_state_ == LOGIN_FAILED) {
icon_options.SetIcon(ScreenlockBridge::USER_POD_CUSTOM_ICON_LOCKED);
} else if (hardlock_state_ == PAIRING_CHANGED ||
hardlock_state_ == PAIRING_ADDED) {
icon_options.SetIcon(
ScreenlockBridge::USER_POD_CUSTOM_ICON_LOCKED_TO_BE_ACTIVATED);
} else {
icon_options.SetIcon(ScreenlockBridge::USER_POD_CUSTOM_ICON_HARDLOCKED);
}
base::string16 device_name = GetDeviceName();
base::string16 tooltip;
if (hardlock_state_ == USER_HARDLOCK) {
tooltip = l10n_util::GetStringFUTF16(
IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_HARDLOCK_USER, device_name);
} else if (hardlock_state_ == PAIRING_CHANGED) {
tooltip = l10n_util::GetStringUTF16(
IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_HARDLOCK_PAIRING_CHANGED);
} else if (hardlock_state_ == PAIRING_ADDED) {
tooltip = l10n_util::GetStringFUTF16(
IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_HARDLOCK_PAIRING_ADDED, device_name,
device_name);
} else if (hardlock_state_ == LOGIN_FAILED) {
tooltip = l10n_util::GetStringUTF16(
IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_LOGIN_FAILURE);
} else {
LOG(ERROR) << "Unknown hardlock state " << hardlock_state_;
}
icon_options.SetTooltip(tooltip, true /* autoshow */);
screenlock_bridge_->lock_handler()->ShowUserPodCustomIcon(user_email_,
icon_options);
hardlock_ui_shown_ = true;
}
void EasyUnlockScreenlockStateHandler::UpdateTooltipOptions(
bool trial_run,
ScreenlockBridge::UserPodCustomIconOptions* icon_options) {
size_t resource_id = 0;
base::string16 device_name;
if (trial_run && state_ == STATE_AUTHENTICATED) {
resource_id = IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_INITIAL_AUTHENTICATED;
} else {
resource_id = GetTooltipResourceId(state_);
if (TooltipContainsDeviceType(state_))
device_name = GetDeviceName();
}
if (!resource_id)
return;
base::string16 tooltip;
if (device_name.empty()) {
tooltip = l10n_util::GetStringUTF16(resource_id);
} else {
tooltip = l10n_util::GetStringFUTF16(resource_id, device_name);
}
if (tooltip.empty())
return;
icon_options->SetTooltip(
tooltip,
trial_run || (state_ != STATE_AUTHENTICATED) /* autoshow tooltip */);
}
base::string16 EasyUnlockScreenlockStateHandler::GetDeviceName() {
#if defined(OS_CHROMEOS)
return chromeos::GetChromeDeviceType();
#else
// TODO(tbarzic): Figure out the name for non Chrome OS case.
return base::ASCIIToUTF16("Chrome");
#endif
}
void EasyUnlockScreenlockStateHandler::UpdateScreenlockAuthType() {
if (!is_trial_run_ && hardlock_state_ != NO_HARDLOCK)
return;
// Do not override online signin.
const ScreenlockBridge::LockHandler::AuthType existing_auth_type =
screenlock_bridge_->lock_handler()->GetAuthType(user_email_);
DCHECK_NE(ScreenlockBridge::LockHandler::ONLINE_SIGN_IN, existing_auth_type);
if (state_ == STATE_AUTHENTICATED) {
if (existing_auth_type != ScreenlockBridge::LockHandler::USER_CLICK) {
screenlock_bridge_->lock_handler()->SetAuthType(
user_email_,
ScreenlockBridge::LockHandler::USER_CLICK,
l10n_util::GetStringUTF16(
IDS_EASY_UNLOCK_SCREENLOCK_USER_POD_AUTH_VALUE));
}
} else if (existing_auth_type !=
ScreenlockBridge::LockHandler::OFFLINE_PASSWORD) {
screenlock_bridge_->lock_handler()->SetAuthType(
user_email_,
ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
base::string16());
}
}
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