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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/shelf/shelf_locking_manager.h"
#include "ash/session/session_controller_impl.h"
#include "ash/shelf/shelf.h"
#include "ash/shell.h"
#include "ash/wm/lock_state_controller.h"
namespace ash {
ShelfLockingManager::ShelfLockingManager(Shelf* shelf)
: shelf_(shelf), scoped_session_observer_(this) {
DCHECK(shelf_);
Shell::Get()->lock_state_controller()->AddObserver(this);
SessionControllerImpl* controller = Shell::Get()->session_controller();
session_locked_ =
controller->GetSessionState() != session_manager::SessionState::ACTIVE;
screen_locked_ = controller->IsScreenLocked();
}
ShelfLockingManager::~ShelfLockingManager() {
// |this| is destroyed after LockStateController for the primary display.
if (Shell::Get()->lock_state_controller())
Shell::Get()->lock_state_controller()->RemoveObserver(this);
}
void ShelfLockingManager::OnLockStateChanged(bool locked) {
screen_locked_ = locked;
UpdateLockedState();
}
void ShelfLockingManager::OnSessionStateChanged(
session_manager::SessionState state) {
session_locked_ = state != session_manager::SessionState::ACTIVE;
UpdateLockedState();
}
void ShelfLockingManager::OnLockStateEvent(EventType event) {
// Lock when the animation starts, ignoring pre-lock. There's no unlock event.
screen_locked_ |= event == EVENT_LOCK_ANIMATION_STARTED;
UpdateLockedState();
}
void ShelfLockingManager::UpdateLockedState() {
const ShelfAlignment alignment = shelf_->alignment();
if (is_locked() && alignment != ShelfAlignment::kBottomLocked) {
in_session_auto_hide_behavior_ = shelf_->auto_hide_behavior();
in_session_alignment_ = alignment;
shelf_->SetAlignment(ShelfAlignment::kBottomLocked);
} else if (!is_locked() && alignment == ShelfAlignment::kBottomLocked) {
in_session_auto_hide_behavior_ = ShelfAutoHideBehavior::kNever;
shelf_->SetAlignment(in_session_alignment_);
}
}
} // namespace ash
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