Move some more WM functionality down into ash.

ui/aura_shell/toplevel_layout_manager.cc

-// Copyright (c) 2011 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 "ui/aura_shell/toplevel_layout_manager.h"
-
-#include "ui/aura/client/aura_constants.h"
-#include "ui/aura/window.h"
-#include "ui/aura_shell/shelf_layout_manager.h"
-#include "ui/aura_shell/window_util.h"
-#include "ui/base/ui_base_types.h"
-#include "ui/gfx/screen.h"
-
-namespace aura_shell {
-namespace internal {
-
-ToplevelLayoutManager::ToplevelLayoutManager() : shelf_(NULL) {
-}
-
-ToplevelLayoutManager::~ToplevelLayoutManager() {
-  for (Windows::const_iterator i = windows_.begin(); i != windows_.end(); ++i)
-    (*i)->RemoveObserver(this);
-}
-
-void ToplevelLayoutManager::OnWindowResized() {
-}
-
-void ToplevelLayoutManager::OnWindowAddedToLayout(aura::Window* child) {
-  windows_.insert(child);
-  child->AddObserver(this);
-  if (child->GetProperty(aura::client::kShowStateKey)) {
-    UpdateBoundsFromShowState(child);
-    UpdateShelfVisibility();
-  }
-}
-
-void ToplevelLayoutManager::OnWillRemoveWindowFromLayout(
-    aura::Window* child) {
-  windows_.erase(child);
-  child->RemoveObserver(this);
-  UpdateShelfVisibility();
-}
-
-void ToplevelLayoutManager::OnChildWindowVisibilityChanged(aura::Window* child,
-                                                           bool visibile) {
-  UpdateShelfVisibility();
-}
-
-void ToplevelLayoutManager::SetChildBounds(aura::Window* child,
-                                           const gfx::Rect& requested_bounds) {
-  const static int kTitleHeight = 12;
-  gfx::Rect child_bounds(requested_bounds);
-  gfx::Rect work_area = gfx::Screen::GetMonitorWorkAreaNearestWindow(child);
-  if (child_bounds.y() < 0)
-    child_bounds.set_y(0);
-  else if (child_bounds.y() + kTitleHeight > work_area.bottom())
-    child_bounds.set_y(work_area.bottom() - kTitleHeight);
-  SetChildBoundsDirect(child, child_bounds);
-}
-
-void ToplevelLayoutManager::OnWindowPropertyChanged(aura::Window* window,
-                                                    const char* name,
-                                                    void* old) {
-  if (name == aura::client::kShowStateKey) {
-    UpdateBoundsFromShowState(window);
-    UpdateShelfVisibility();
-  }
-}
-
-void ToplevelLayoutManager::UpdateShelfVisibility() {
-  if (!shelf_)
-    return;
-
-  bool has_fullscreen_window = false;
-  for (Windows::const_iterator i = windows_.begin(); i != windows_.end(); ++i) {
-    if ((*i)->GetIntProperty(aura::client::kShowStateKey) ==
-        ui::SHOW_STATE_FULLSCREEN) {
-      has_fullscreen_window = true;
-      break;
-    }
-  }
-  shelf_->SetVisible(!has_fullscreen_window);
-}
-
-}  // namespace internal
-}  // namespace aura_shell