Preliminary interactive layout of window manager's demo_launcher

mojo/examples/window_manager/debug_panel.cc

 // Copyright 2014 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 "mojo/examples/window_manager/debug_panel.h"
 
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "mojo/services/public/cpp/view_manager/node.h"
 #include "mojo/views/native_widget_view_manager.h"
@@ skipping 28 matching lines @@
       colored_square_(new views::BlueButton(
           this, base::ASCIIToUTF16("Local nav test"))),
       close_last_(new views::BlueButton(
           this, base::ASCIIToUTF16("Close last window"))),
       cross_app_(new views::BlueButton(
           this, base::ASCIIToUTF16("Cross-app nav test"))) {
   navigation_target_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
   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);
+  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);
 
-  views::Widget* widget = new views::Widget();
+  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() {
 }
 
 gfx::Size DebugPanel::GetPreferredSize(const views::View* view) const {
   return gfx::Size();
 }
 
 navigation::Target DebugPanel::navigation_target() const {
@@ skipping 49 matching lines @@
   }
 }
 
 void DebugPanel::Navigate(const std::string& url) {
   navigation::NavigationDetailsPtr details(
       navigation::NavigationDetails::New());
   details->url = 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