Reland r141871.

Add RootWindowController that keeps per root window state.
Cleanup Shell::Init(). Separated initialization that are specific to shell, root window and primary display.
I also did small cleanup in detor. I'll do more cleanups when I have a chance.

BUG=123160
TEST=no functional change. all tests should pass.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=141871

Review URL: https://chromiumcodereview.appspot.com/10546024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@141881 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 218 insertions, 0 deletions

diff --git a/ash/root_window_controller.cc b/ash/root_window_controller.cc
new file mode 100644
index 0000000..0938beb
--- /dev/null
+++ b/ash/root_window_controller.cc
@@ -0,0 +1,218 @@
+// 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/root_window_controller.h"
+
+#include "ash/shell.h"
+#include "ash/shell_factory.h"
+#include "ash/shell_window_ids.h"
+#include "ash/wm/base_layout_manager.h"
+#include "ash/wm/event_client_impl.h"
+#include "ash/wm/property_util.h"
+#include "ash/wm/root_window_layout_manager.h"
+#include "ash/wm/screen_dimmer.h"
+#include "ash/wm/system_modal_container_layout_manager.h"
+#include "ash/wm/toplevel_window_event_filter.h"
+#include "ash/wm/visibility_controller.h"
+#include "ash/wm/workspace/workspace_manager.h"
+#include "ash/wm/workspace_controller.h"
+#include "ui/aura/client/tooltip_client.h"
+#include "ui/aura/root_window.h"
+
+namespace ash {
+namespace {
+
+// Creates a new window for use as a container.
+aura::Window* CreateContainer(int window_id,
+                              const char* name,
+                              aura::Window* parent) {
+  aura::Window* container = new aura::Window(NULL);
+  container->set_id(window_id);
+  container->SetName(name);
+  container->Init(ui::LAYER_NOT_DRAWN);
+  parent->AddChild(container);
+  if (window_id != internal::kShellWindowId_UnparentedControlContainer)
+    container->Show();
+  return container;
+}
+
+// Creates each of the special window containers that holds windows of various
+// types in the shell UI.
+void CreateContainersInRootWindow(aura::RootWindow* root_window) {
+  // These containers are just used by PowerButtonController to animate groups
+  // of containers simultaneously without messing up the current transformations
+  // on those containers.  These are direct children of the root window; all of
+  // the other containers are their children.
+  aura::Window* non_lock_screen_containers = CreateContainer(
+      internal::kShellWindowId_NonLockScreenContainersContainer,
+      "NonLockScreenContainersContainer",
+      root_window);
+  aura::Window* lock_screen_containers = CreateContainer(
+      internal::kShellWindowId_LockScreenContainersContainer,
+      "LockScreenContainersContainer",
+      root_window);
+  aura::Window* lock_screen_related_containers = CreateContainer(
+      internal::kShellWindowId_LockScreenRelatedContainersContainer,
+      "LockScreenRelatedContainersContainer",
+      root_window);
+
+  CreateContainer(internal::kShellWindowId_UnparentedControlContainer,
+                  "UnparentedControlContainer",
+                  non_lock_screen_containers);
+
+  aura::Window* desktop_background_containers = CreateContainer(
+      internal::kShellWindowId_DesktopBackgroundContainer,
+      "DesktopBackgroundContainer",
+      non_lock_screen_containers);
+  SetChildWindowVisibilityChangesAnimated(desktop_background_containers);
+
+  aura::Window* default_container = CreateContainer(
+      internal::kShellWindowId_DefaultContainer,
+      "DefaultContainer",
+      non_lock_screen_containers);
+  default_container->SetEventFilter(
+      new ToplevelWindowEventFilter(default_container));
+  SetChildWindowVisibilityChangesAnimated(default_container);
+
+  aura::Window* always_on_top_container = CreateContainer(
+      internal::kShellWindowId_AlwaysOnTopContainer,
+      "AlwaysOnTopContainer",
+      non_lock_screen_containers);
+  always_on_top_container->SetEventFilter(
+      new ToplevelWindowEventFilter(always_on_top_container));
+  SetChildWindowVisibilityChangesAnimated(always_on_top_container);
+
+  CreateContainer(internal::kShellWindowId_PanelContainer,
+                  "PanelContainer",
+                  non_lock_screen_containers);
+
+  CreateContainer(internal::kShellWindowId_LauncherContainer,
+                  "LauncherContainer",
+                  non_lock_screen_containers);
+
+  CreateContainer(internal::kShellWindowId_AppListContainer,
+                  "AppListContainer",
+                  non_lock_screen_containers);
+
+  aura::Window* modal_container = CreateContainer(
+      internal::kShellWindowId_SystemModalContainer,
+      "SystemModalContainer",
+      non_lock_screen_containers);
+  modal_container->SetEventFilter(
+      new ToplevelWindowEventFilter(modal_container));
+  modal_container->SetLayoutManager(
+      new internal::SystemModalContainerLayoutManager(modal_container));
+  SetChildWindowVisibilityChangesAnimated(modal_container);
+
+  // TODO(beng): Figure out if we can make this use
+  // SystemModalContainerEventFilter instead of stops_event_propagation.
+  aura::Window* lock_container = CreateContainer(
+      internal::kShellWindowId_LockScreenContainer,
+      "LockScreenContainer",
+      lock_screen_containers);
+  lock_container->SetLayoutManager(
+      new internal::BaseLayoutManager(root_window));
+  // TODO(beng): stopsevents
+
+  aura::Window* lock_modal_container = CreateContainer(
+      internal::kShellWindowId_LockSystemModalContainer,
+      "LockSystemModalContainer",
+      lock_screen_containers);
+  lock_modal_container->SetEventFilter(
+      new ToplevelWindowEventFilter(lock_modal_container));
+  lock_modal_container->SetLayoutManager(
+      new internal::SystemModalContainerLayoutManager(lock_modal_container));
+  SetChildWindowVisibilityChangesAnimated(lock_modal_container);
+
+  CreateContainer(internal::kShellWindowId_StatusContainer,
+                  "StatusContainer",
+                  lock_screen_related_containers);
+
+  aura::Window* settings_bubble_container = CreateContainer(
+      internal::kShellWindowId_SettingBubbleContainer,
+      "SettingBubbleContainer",
+      lock_screen_related_containers);
+  SetChildWindowVisibilityChangesAnimated(settings_bubble_container);
+
+  aura::Window* menu_container = CreateContainer(
+      internal::kShellWindowId_MenuContainer,
+      "MenuContainer",
+      lock_screen_related_containers);
+  SetChildWindowVisibilityChangesAnimated(menu_container);
+
+  aura::Window* drag_drop_container = CreateContainer(
+      internal::kShellWindowId_DragImageAndTooltipContainer,
+      "DragImageAndTooltipContainer",
+      lock_screen_related_containers);
+  SetChildWindowVisibilityChangesAnimated(drag_drop_container);
+
+  CreateContainer(internal::kShellWindowId_OverlayContainer,
+                  "OverlayContainer",
+                  lock_screen_related_containers);
+}
+
+}  // namespace
+
+namespace internal {
+
+RootWindowController::RootWindowController(aura::RootWindow* root_window)
+    : root_window_(root_window) {
+  SetRootWindowController(root_window, this);
+
+  event_client_.reset(new internal::EventClientImpl(root_window));
+  screen_dimmer_.reset(new internal::ScreenDimmer(root_window));
+}
+
+RootWindowController::~RootWindowController() {
+  SetRootWindowController(root_window_.get(), NULL);
+  event_client_.reset();
+  screen_dimmer_.reset();
+  workspace_controller_.reset();
+  root_window_.reset();
+}
+
+aura::Window* RootWindowController::GetContainer(int container_id) {
+  return root_window_->GetChildById(container_id);
+}
+
+void RootWindowController::InitLayoutManagers() {
+  root_window_layout_ =
+      new internal::RootWindowLayoutManager(root_window_.get());
+  root_window_->SetLayoutManager(root_window_layout_);
+
+  aura::Window* default_container =
+      GetContainer(internal::kShellWindowId_DefaultContainer);
+  // Workspace manager has its own layout managers.
+  workspace_controller_.reset(
+      new internal::WorkspaceController(default_container));
+
+  aura::Window* always_on_top_container =
+      GetContainer(internal::kShellWindowId_AlwaysOnTopContainer);
+  always_on_top_container->SetLayoutManager(
+      new internal::BaseLayoutManager(
+          always_on_top_container->GetRootWindow()));
+}
+
+void RootWindowController::CreateContainers() {
+  CreateContainersInRootWindow(root_window_.get());
+}
+
+void RootWindowController::CloseChildWindows() {
+  // Close background widget first as it depends on tooltip.
+  root_window_layout_->SetBackgroundWidget(NULL);
+  workspace_controller_.reset();
+  aura::client::SetTooltipClient(root_window_.get(), NULL);
+
+  while (!root_window_->children().empty()) {
+    aura::Window* child = root_window_->children()[0];
+    delete child;
+  }
+}
+
+bool RootWindowController::IsInMaximizedMode() const {
+  return workspace_controller_->workspace_manager()->IsInMaximizedMode();
+}
+
+}  // namespace internal
+}  // namespace ash