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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ash/shell.h"
      6 #include "base/strings/utf_string_conversions.h"
      7 #include "ui/aura/window.h"
      8 #include "ui/aura/window_event_dispatcher.h"
      9 #include "ui/gfx/canvas.h"
     10 #include "ui/views/controls/button/checkbox.h"
     11 #include "ui/views/controls/button/label_button.h"
     12 #include "ui/views/controls/button/radio_button.h"
     13 #include "ui/views/widget/widget.h"
     14 #include "ui/views/widget/widget_delegate.h"
     15 
     16 namespace {
     17 
     18 // Default window position.
     19 const int kWindowLeft = 170;
     20 const int kWindowTop = 200;
     21 
     22 // Default window size.
     23 const int kWindowWidth = 400;
     24 const int kWindowHeight = 400;
     25 
     26 // A window showing samples of commonly used widgets.
     27 class WidgetsWindow : public views::WidgetDelegateView {
     28  public:
     29   WidgetsWindow();
     30   virtual ~WidgetsWindow();
     31 
     32   // Overridden from views::View:
     33   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
     34   virtual void Layout() OVERRIDE;
     35   virtual gfx::Size GetPreferredSize() const OVERRIDE;
     36 
     37   // Overridden from views::WidgetDelegate:
     38   virtual views::View* GetContentsView() OVERRIDE;
     39   virtual base::string16 GetWindowTitle() const OVERRIDE;
     40   virtual bool CanResize() const OVERRIDE;
     41 
     42  private:
     43   views::LabelButton* button_;
     44   views::LabelButton* disabled_button_;
     45   views::Checkbox* checkbox_;
     46   views::Checkbox* checkbox_disabled_;
     47   views::Checkbox* checkbox_checked_;
     48   views::Checkbox* checkbox_checked_disabled_;
     49   views::RadioButton* radio_button_;
     50   views::RadioButton* radio_button_disabled_;
     51   views::RadioButton* radio_button_selected_;
     52   views::RadioButton* radio_button_selected_disabled_;
     53 };
     54 
     55 WidgetsWindow::WidgetsWindow()
     56     : button_(new views::LabelButton(NULL, base::ASCIIToUTF16("Button"))),
     57       disabled_button_(
     58           new views::LabelButton(NULL, base::ASCIIToUTF16("Disabled button"))),
     59       checkbox_(new views::Checkbox(base::ASCIIToUTF16("Checkbox"))),
     60       checkbox_disabled_(new views::Checkbox(
     61           base::ASCIIToUTF16("Checkbox disabled"))),
     62       checkbox_checked_(new views::Checkbox(
     63           base::ASCIIToUTF16("Checkbox checked"))),
     64       checkbox_checked_disabled_(new views::Checkbox(
     65           base::ASCIIToUTF16("Checkbox checked disabled"))),
     66       radio_button_(new views::RadioButton(
     67           base::ASCIIToUTF16("Radio button"), 0)),
     68       radio_button_disabled_(new views::RadioButton(
     69           base::ASCIIToUTF16("Radio button disabled"), 0)),
     70       radio_button_selected_(new views::RadioButton(
     71           base::ASCIIToUTF16("Radio button selected"), 0)),
     72       radio_button_selected_disabled_(new views::RadioButton(
     73           base::ASCIIToUTF16("Radio button selected disabled"), 1)) {
     74   button_->SetStyle(views::Button::STYLE_BUTTON);
     75   AddChildView(button_);
     76   disabled_button_->SetEnabled(false);
     77   disabled_button_->SetStyle(views::Button::STYLE_BUTTON);
     78   AddChildView(disabled_button_);
     79   AddChildView(checkbox_);
     80   checkbox_disabled_->SetEnabled(false);
     81   AddChildView(checkbox_disabled_);
     82   checkbox_checked_->SetChecked(true);
     83   AddChildView(checkbox_checked_);
     84   checkbox_checked_disabled_->SetChecked(true);
     85   checkbox_checked_disabled_->SetEnabled(false);
     86   AddChildView(checkbox_checked_disabled_);
     87   AddChildView(radio_button_);
     88   radio_button_disabled_->SetEnabled(false);
     89   AddChildView(radio_button_disabled_);
     90   radio_button_selected_->SetChecked(true);
     91   AddChildView(radio_button_selected_);
     92   radio_button_selected_disabled_->SetChecked(true);
     93   radio_button_selected_disabled_->SetEnabled(false);
     94   AddChildView(radio_button_selected_disabled_);
     95 }
     96 
     97 WidgetsWindow::~WidgetsWindow() {
     98 }
     99 
    100 void WidgetsWindow::OnPaint(gfx::Canvas* canvas) {
    101   canvas->FillRect(GetLocalBounds(), SK_ColorWHITE);
    102 }
    103 
    104 void WidgetsWindow::Layout() {
    105   const int kVerticalPad = 5;
    106   int left = 5;
    107   int top = kVerticalPad;
    108   for (int i = 0; i < child_count(); ++i) {
    109     views::View* view = child_at(i);
    110     gfx::Size preferred = view->GetPreferredSize();
    111     view->SetBounds(left, top, preferred.width(), preferred.height());
    112     top += preferred.height() + kVerticalPad;
    113   }
    114 }
    115 
    116 gfx::Size WidgetsWindow::GetPreferredSize() const {
    117   return gfx::Size(kWindowWidth, kWindowHeight);
    118 }
    119 
    120 views::View* WidgetsWindow::GetContentsView() {
    121   return this;
    122 }
    123 
    124 base::string16 WidgetsWindow::GetWindowTitle() const {
    125   return base::ASCIIToUTF16("Examples: Widgets");
    126 }
    127 
    128 bool WidgetsWindow::CanResize() const {
    129   return true;
    130 }
    131 
    132 }  // namespace
    133 
    134 namespace ash {
    135 namespace shell {
    136 
    137 void CreateWidgetsWindow() {
    138   gfx::Rect bounds(kWindowLeft, kWindowTop, kWindowWidth, kWindowHeight);
    139   views::Widget* widget =
    140       views::Widget::CreateWindowWithContextAndBounds(
    141           new WidgetsWindow, Shell::GetPrimaryRootWindow(), bounds);
    142   widget->GetNativeView()->SetName("WidgetsWindow");
    143   widget->Show();
    144 }
    145 
    146 }  // namespace shell
    147 }  // namespace ash
    148