Preliminary interactive layout of window manager's demo_launcher

mojo/examples/window_manager/debug_panel.cc

Index: mojo/examples/window_manager/debug_panel.cc
diff --git a/mojo/examples/window_manager/debug_panel.cc b/mojo/examples/window_manager/debug_panel.cc
index c0438a2aef1912adf99cccfe8b90cbaf24ad2ed8..b39fc8efb8dd9e4cb75d1d18a3bf676672608012 100644
--- a/mojo/examples/window_manager/debug_panel.cc
+++ b/mojo/examples/window_manager/debug_panel.cc
@@ -46,25 +46,28 @@ DebugPanel::DebugPanel(Delegate* delegate, view_manager::Node* node)
   navigation_target_default_->SetChecked(true);
 
   views::WidgetDelegateView* widget_delegate = new views::WidgetDelegateView();
-  widget_delegate->GetContentsView()->set_background(
+  contents_view_ = widget_delegate->GetContentsView();
+  contents_view_->set_background(
       views::Background::CreateSolidBackground(0xFFDDDDDD));
-  widget_delegate->GetContentsView()->AddChildView(navigation_target_label_);
-  widget_delegate->GetContentsView()->AddChildView(navigation_target_default_);
-  widget_delegate->GetContentsView()->AddChildView(navigation_target_new_);
-  widget_delegate->GetContentsView()->AddChildView(navigation_target_source_);
-  widget_delegate->GetContentsView()->AddChildView(colored_square_);
-  widget_delegate->GetContentsView()->AddChildView(close_last_);
-  widget_delegate->GetContentsView()->AddChildView(cross_app_);
-  widget_delegate->GetContentsView()->SetLayoutManager(this);
-
-  views::Widget* widget = new views::Widget();
+  contents_view_->AddChildView(navigation_target_label_);
+  contents_view_->AddChildView(navigation_target_default_);
+  contents_view_->AddChildView(navigation_target_new_);
+  contents_view_->AddChildView(navigation_target_source_);
+  contents_view_->AddChildView(colored_square_);
+  contents_view_->AddChildView(close_last_);
+  contents_view_->AddChildView(cross_app_);
+  contents_view_->SetLayoutManager(this);
+
+  widget_ = new views::Widget();
   views::Widget::InitParams params(
       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
-  params.native_widget = new NativeWidgetViewManager(widget, node);
+  params.native_widget = new NativeWidgetViewManager(widget_, node);
   params.delegate = widget_delegate;
   params.bounds = gfx::Rect(node->bounds().size());
-  widget->Init(params);
-  widget->Show();
+  widget_->Init(params);
+  widget_->Show();
+
+  node->AddObserver(this);
 }
 
 DebugPanel::~DebugPanel() {
@@ -134,5 +137,13 @@ void DebugPanel::Navigate(const std::string& url) {
   delegate_->RequestNavigate(node_->id(), navigation::NEW_NODE, details.Pass());
 }
 
+void DebugPanel::OnNodeBoundsChanged(view_manager::Node* node,
+                                     const gfx::Rect& /*old_bounds*/,
+                                     const gfx::Rect& /*new_bounds*/) {
+  widget_->SetBounds(gfx::Rect(node->bounds().size()));
+  contents_view_->Layout();
+}
+
+
 }  // namespace examples
 }  // namespace mojo