Move WindowModalityController to CoreWm.

ash/wm/window_modality_controller.cc

-// 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 "ash/wm/window_modality_controller.h"
-
-#include <algorithm>
-
-#include "ui/aura/client/aura_constants.h"
-#include "ui/aura/client/capture_client.h"
-#include "ui/aura/env.h"
-#include "ui/aura/root_window.h"
-#include "ui/aura/window.h"
-#include "ui/aura/window_property.h"
-#include "ui/base/events/event.h"
-#include "ui/base/ui_base_types.h"
-#include "ui/views/corewm/window_animations.h"
-#include "ui/views/corewm/window_util.h"
-
-namespace ash {
-
-// Transient child's modal parent.
-extern const aura::WindowProperty<aura::Window*>* const kModalParentKey;
-DEFINE_WINDOW_PROPERTY_KEY(aura::Window*, kModalParentKey, NULL);
-
-namespace {
-
-bool HasAncestor(aura::Window* window, aura::Window* ancestor) {
-  if (!window)
-    return false;
-  if (window == ancestor)
-    return true;
-  return HasAncestor(window->parent(), ancestor);
-}
-
-bool TransientChildIsWindowModal(aura::Window* window) {
-  return window->GetProperty(aura::client::kModalKey) == ui::MODAL_TYPE_WINDOW;
-}
-
-bool TransientChildIsChildModal(aura::Window* window) {
-  return window->GetProperty(aura::client::kModalKey) == ui::MODAL_TYPE_CHILD;
-}
-
-aura::Window* GetModalParent(aura::Window* window) {
-  return window->GetProperty(kModalParentKey);
-}
-
-bool IsModalTransientChild(aura::Window* transient, aura::Window* original) {
-  return transient->IsVisible() &&
-      (TransientChildIsWindowModal(transient) ||
-       (TransientChildIsChildModal(transient) &&
-        (HasAncestor(original, GetModalParent(transient)))));
-}
-
-aura::Window* GetModalTransientChild(
-    aura::Window* activatable,
-    aura::Window* original) {
-  aura::Window::Windows::const_iterator it;
-  for (it = activatable->transient_children().begin();
-       it != activatable->transient_children().end();
-       ++it) {
-    aura::Window* transient = *it;
-    if (IsModalTransientChild(transient, original)) {
-      return transient->transient_children().empty() ?
-          transient : GetModalTransientChild(transient, original);
-    }
-  }
-  return NULL;
-}
-
-}  // namespace
-
-void SetModalParent(aura::Window* child, aura::Window* parent) {
-  child->SetProperty(kModalParentKey, parent);
-}
-
-aura::Window* GetModalTransient(aura::Window* window) {
-  if (!window)
-    return NULL;
-
-  // We always want to check the for the transient child of the activatable
-  // window.
-  aura::Window* activatable = views::corewm::GetActivatableWindow(window);
-  if (!activatable)
-    return NULL;
-
-  return GetModalTransientChild(activatable, window);
-}
-
-namespace internal {
-
-////////////////////////////////////////////////////////////////////////////////
-// WindowModalityController, public:
-
-WindowModalityController::WindowModalityController() {
-  aura::Env::GetInstance()->AddObserver(this);
-}
-
-WindowModalityController::~WindowModalityController() {
-  aura::Env::GetInstance()->RemoveObserver(this);
-  for (size_t i = 0; i < windows_.size(); ++i)
-    windows_[i]->RemoveObserver(this);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// WindowModalityController, aura::EventFilter implementation:
-
-ui::EventResult WindowModalityController::OnKeyEvent(ui::KeyEvent* event) {
-  aura::Window* target = static_cast<aura::Window*>(event->target());
-  return GetModalTransient(target) ? ui::ER_CONSUMED : ui::ER_UNHANDLED;
-}
-
-ui::EventResult WindowModalityController::OnMouseEvent(ui::MouseEvent* event) {
-  aura::Window* target = static_cast<aura::Window*>(event->target());
-  return ProcessLocatedEvent(target, event) ? ui::ER_CONSUMED :
-                                              ui::ER_UNHANDLED;
-}
-
-ui::EventResult WindowModalityController::OnTouchEvent(ui::TouchEvent* event) {
-  aura::Window* target = static_cast<aura::Window*>(event->target());
-  return ProcessLocatedEvent(target, event) ? ui::ER_CONSUMED :
-                                              ui::ER_UNHANDLED;
-}
-
-void WindowModalityController::OnWindowInitialized(aura::Window* window) {
-  windows_.push_back(window);
-  window->AddObserver(this);
-}
-
-void WindowModalityController::OnWindowVisibilityChanged(
-    aura::Window* window,
-    bool visible) {
-  if (visible && window->GetProperty(aura::client::kModalKey) ==
-      ui::MODAL_TYPE_WINDOW) {
-    // Make sure no other window has capture, otherwise |window| won't get mouse
-    // events.
-    aura::Window* capture_window = aura::client::GetCaptureWindow(window);
-    if (capture_window)
-      capture_window->ReleaseCapture();
-  }
-}
-
-void WindowModalityController::OnWindowDestroyed(aura::Window* window) {
-  windows_.erase(std::find(windows_.begin(), windows_.end(), window));
-  window->RemoveObserver(this);
-}
-
-bool WindowModalityController::ProcessLocatedEvent(aura::Window* target,
-                                                   ui::LocatedEvent* event) {
-  aura::Window* modal_transient_child = GetModalTransient(target);
-  if (modal_transient_child && (event->type() == ui::ET_MOUSE_PRESSED ||
-                                event->type() == ui::ET_TOUCH_PRESSED)) {
-    views::corewm::AnimateWindow(modal_transient_child,
-                                 views::corewm::WINDOW_ANIMATION_TYPE_BOUNCE);
-  }
-  return !!modal_transient_child;
-}
-
-}  // namespace internal
-}  // namespace ash