Aura: Add --aura-laptop-mode to fill the workspace with a single window.

ui/aura_shell/laptop_mode_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/laptop_mode_layout_manager.h"
+
+#include "ui/aura/client/aura_constants.h"
+#include "ui/aura/window.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 {
+
+LaptopModeLayoutManager::LaptopModeLayoutManager() {
+}
+
+LaptopModeLayoutManager::~LaptopModeLayoutManager() {
+  for (Windows::const_iterator i = windows_.begin(); i != windows_.end(); ++i)
+    (*i)->RemoveObserver(this);
+}
+
+void LaptopModeLayoutManager::OnWindowResized() {
+}
+
+void LaptopModeLayoutManager::OnWindowAddedToLayout(aura::Window* child) {
+  windows_.insert(child);
+  child->AddObserver(this);
+  if (child->GetProperty(aura::kShowStateKey))
+    window_util::UpdateBoundsFromShowState(child);
+}
+
+void LaptopModeLayoutManager::OnWillRemoveWindowFromLayout(
+    aura::Window* child) {
+  windows_.erase(child);
+  child->RemoveObserver(this);
+}
+
+void LaptopModeLayoutManager::OnChildWindowVisibilityChanged(
+    aura::Window* child,
+    bool visibile) {
+}
+
+void LaptopModeLayoutManager::SetChildBounds(
+    aura::Window* child,
+    const gfx::Rect& requested_bounds) {
+  // In laptop mode normal windows always fill the work area.
+  // TODO(jamescook): Make this apply only to tabbed browser windows -- right
+  // now browser popups fill the screen too.
+  if (child->type() == aura::WINDOW_TYPE_NORMAL) {
+    gfx::Rect work_area_bounds =
+        gfx::Screen::GetMonitorWorkAreaNearestWindow(child);
+    if (requested_bounds != work_area_bounds) {
+      child->SetBounds(work_area_bounds);
+      return;
+    }
+  }
+  SetChildBoundsDirect(child, requested_bounds);
+}
+
+void LaptopModeLayoutManager::OnWindowPropertyChanged(aura::Window* window,
+                                                      const char* name,
+                                                      void* old) {
+  if (name == aura::kShowStateKey)
+    window_util::UpdateBoundsFromShowState(window);
+}
+
+}  // namespace internal
+}  // namespace aura_shell