blob: 12721b1a42572443056a8554c93feb173a3459be [file] [log] [blame]
// Copyright 2016 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 "ash/wm/focus_rules.h"
#include "ash/public/cpp/shell_window_ids.h"
#include "ash/shell.h"
#include "ash/shell_delegate.h"
#include "ash/wm/window_state.h"
#include "ui/aura/window.h"
#include "ui/wm/public/activation_delegate.h"
namespace ash {
bool IsToplevelWindow(const aura::Window* window) {
// The window must in a valid hierarchy.
if (!window->GetRootWindow() || !window->parent())
return false;
// The window must exist within a container that supports activation.
// The window cannot be blocked by a modal transient.
return IsActivatableShellWindowId(window->parent()->id());
bool IsWindowConsideredActivatable(const aura::Window* window) {
// Only toplevel windows can be activated.
if (!IsToplevelWindow(window))
return false;
if (!IsWindowConsideredVisibleForActivation(window))
return false;
if (::wm::GetActivationDelegate(window) &&
!::wm::GetActivationDelegate(window)->ShouldActivate()) {
return false;
return window->CanFocus();
bool IsWindowConsideredVisibleForActivation(const aura::Window* window) {
// If the |window| doesn't belong to the current active user and also doesn't
// show for the current active user, then it should not be activated.
if (!Shell::Get()->shell_delegate()->CanShowWindowForUser(window))
return false;
if (window->IsVisible())
return true;
// Minimized windows are hidden in their minimized state, but they can always
// be activated.
if (wm::GetWindowState(window)->IsMinimized())
return true;
if (!window->TargetVisibility())
return false;
const int parent_shell_window_id = window->parent()->id();
return parent_shell_window_id == kShellWindowId_DefaultContainer ||
parent_shell_window_id == kShellWindowId_LockScreenContainer;
} // namespace ash