Move ash/wm's DialogFrameView to ui/views/window; etc.

ui/views/examples/widget_example.cc

 // 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 "ui/views/examples/widget_example.h"
 
 #include "base/utf_string_conversions.h"
 #include "ui/views/controls/button/text_button.h"
 #include "ui/views/layout/box_layout.h"
-#include "ui/views/layout/layout_manager.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/widget.h"
+#include "ui/views/window/dialog_delegate.h"
 
 namespace views {
 namespace examples {
-namespace {
-
-// A layout manager that layouts a single child at
-// the center of the host view.
-class CenterLayout : public LayoutManager {
- public:
-  CenterLayout() {}
-  virtual ~CenterLayout() {}
-
-  // Overridden from LayoutManager:
-  virtual void Layout(View* host) {
-    View* child = host->child_at(0);
-    gfx::Size size = child->GetPreferredSize();
-    child->SetBounds((host->width() - size.width()) / 2,
-                     (host->height() - size.height()) / 2,
-                     size.width(), size.height());
-  }
-
-  virtual gfx::Size GetPreferredSize(View* host) {
-    return gfx::Size();
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(CenterLayout);
-};
-
-}  // namespace
 
 WidgetExample::WidgetExample() : ExampleBase("Widget") {
 }
 
 WidgetExample::~WidgetExample() {
 }
 
 void WidgetExample::CreateExampleView(View* container) {
-  container->SetLayoutManager(
-      new BoxLayout(BoxLayout::kHorizontal, 0, 0, 2));
-  BuildButton(container, "Create a popup widget", POPUP);
-  BuildButton(container, "Create a transparent popup widget",
-              TRANSPARENT_POPUP);
+  container->SetLayoutManager(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 2));
+  BuildButton(container, "Popup widget", POPUP);
+  BuildButton(container, "Dialog widget", DIALOG);
 #if defined(OS_LINUX)
-  View* vert_container = new View();
-  container->AddChildView(vert_container);
-  vert_container->SetLayoutManager(
-      new BoxLayout(BoxLayout::kVertical, 0, 0, 20));
-  BuildButton(vert_container, "Create a child widget", CHILD);
-  BuildButton(vert_container, "Create a transparent child widget",
-              TRANSPARENT_CHILD);
+  // Windows does not support TYPE_CONTROL top-level widgets.
+  BuildButton(container, "Child widget", CHILD);
 #endif
 }
 
 void WidgetExample::BuildButton(View* container,
                                 const std::string& label,
                                 int tag) {
   TextButton* button = new TextButton(this, ASCIIToUTF16(label));
   button->set_tag(tag);
   container->AddChildView(button);
 }
 
-void WidgetExample::InitWidget(Widget* widget, bool transparent) {
-  // Add view/native buttons to close the popup widget.
-  TextButton* close_button = new TextButton(
-      this, ASCIIToUTF16("Close"));
-  close_button->set_tag(CLOSE_WIDGET);
-  // TODO(oshima): support transparent native view.
-  NativeTextButton* native_button = new NativeTextButton(
-      this, ASCIIToUTF16("Native Close"));
-  native_button->set_tag(CLOSE_WIDGET);
+void WidgetExample::ShowWidget(View* sender, Widget::InitParams params) {
+  // Setup shared Widget heirarchy and bounds parameters.
+  params.parent = sender->GetWidget()->GetNativeView();
+  params.bounds = gfx::Rect(sender->GetBoundsInScreen().CenterPoint(),
+                            gfx::Size(200, 100));
 
-  View* button_container = new View();
-  button_container->SetLayoutManager(
-      new BoxLayout(BoxLayout::kHorizontal, 0, 0, 1));
-  button_container->AddChildView(close_button);
-  button_container->AddChildView(native_button);
+  Widget* widget = new Widget();
+  widget->Init(params);
 
-  View* widget_container = new View();
-  widget_container->SetLayoutManager(new CenterLayout);
-  widget_container->AddChildView(button_container);
-
-  widget->SetContentsView(widget_container);
-
-  if (!transparent) {
-    widget_container->set_background(
-        Background::CreateStandardPanelBackground());
+  // If the Widget has no contents by default, add a view with a 'Close' button.
+  if (!widget->GetContentsView()) {
+    View* contents = new View();
+    contents->SetLayoutManager(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0));
+    contents->set_background(Background::CreateSolidBackground(SK_ColorGRAY));
+    BuildButton(contents, "Close", CLOSE_WIDGET);
+    widget->SetContentsView(contents);
   }
 
-  // Show the widget.
   widget->Show();
 }
 
-#if defined(OS_LINUX)
-void WidgetExample::CreateChild(View* parent, bool transparent) {
-  Widget* widget = new Widget;
-  // Compute where to place the child widget.
-  // We'll place it at the center of the root widget.
-  Widget* parent_widget = parent->GetWidget();
-  gfx::Rect bounds = parent_widget->GetClientAreaBoundsInScreen();
-  // Child widget is 200x200 square.
-  bounds.SetRect((bounds.width() - 200) / 2, (bounds.height() - 200) / 2,
-      200, 200);
-  // Initialize the child widget with the computed bounds.
-  Widget::InitParams params(Widget::InitParams::TYPE_CONTROL);
-  params.transparent = transparent;
-  params.parent = parent_widget->GetNativeView();
-  widget->Init(params);
-  InitWidget(widget, transparent);
-}
-#endif
-
-void WidgetExample::CreatePopup(View* parent, bool transparent) {
-  Widget* widget = new Widget;
-
-  // Compute where to place the popup widget.
-  // We'll place it right below the create button.
-  gfx::Point point = parent->GetMirroredPosition();
-  // The position in point is relative to the parent. Make it absolute.
-  View::ConvertPointToScreen(parent, &point);
-  // Add the height of create_button_.
-  point.Offset(0, parent->size().height());
-
-  // Initialize the popup widget with the computed bounds.
-  Widget::InitParams params(Widget::InitParams::TYPE_POPUP);
-  params.transparent = transparent;
-  params.parent = parent->GetWidget()->GetNativeView();
-  params.bounds = gfx::Rect(point.x(), point.y(), 200, 300);
-  widget->Init(params);
-  InitWidget(widget, transparent);
-}
-
 void WidgetExample::ButtonPressed(Button* sender, const ui::Event& event) {
   switch (sender->tag()) {
     case POPUP:
-      CreatePopup(sender, false);
+      ShowWidget(sender, Widget::InitParams(Widget::InitParams::TYPE_POPUP));
       break;
-    case TRANSPARENT_POPUP:
-      CreatePopup(sender, true);
+    case DIALOG: {
+      Widget::InitParams params(Widget::InitParams::TYPE_WINDOW);
+      params.delegate = new DialogDelegateView();
+      ShowWidget(sender, params);
       break;
-#if defined(OS_LINUX)
+    }
     case CHILD:
-      CreateChild(sender, false);
+      ShowWidget(sender, Widget::InitParams(Widget::InitParams::TYPE_CONTROL));
       break;
-    case TRANSPARENT_CHILD:
-      CreateChild(sender, true);
-      break;
-#endif
     case CLOSE_WIDGET:
       sender->GetWidget()->Close();
       break;
   }
 }
 
 }  // namespace examples
 }  // namespace views