ui/views/examples/widget_example.cc

   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 "ui/views/examples/widget_example.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "ui/views/background.h"
   9 #include "ui/views/controls/button/label_button.h"
  10 #include "ui/views/controls/label.h"
  11 #include "ui/views/layout/box_layout.h"
  12 #include "ui/views/view.h"
  13 #include "ui/views/widget/widget.h"
  14 #include "ui/views/window/dialog_delegate.h"
  15
  16 using base::ASCIIToUTF16;
  17
  18 namespace views {
  19 namespace examples {
  20
  21 namespace {
  22
  23 class DialogExample : public DialogDelegateView {
  24  public:
  25   DialogExample();
  26   ~DialogExample() override;
  27   base::string16 GetWindowTitle() const override;
  28   View* CreateExtraView() override;
  29   View* CreateTitlebarExtraView() override;
  30   View* CreateFootnoteView() override;
  31 };
  32
  33 class ModalDialogExample : public DialogExample {
  34  public:
  35   ModalDialogExample() {}
  36
  37   // WidgetDelegate:
  38   ui::ModalType GetModalType() const override { return ui::MODAL_TYPE_WINDOW; }
  39
  40  private:
  41   DISALLOW_COPY_AND_ASSIGN(ModalDialogExample);
  42 };
  43
  44 DialogExample::DialogExample() {
  45   set_background(Background::CreateSolidBackground(SK_ColorGRAY));
  46   SetLayoutManager(new BoxLayout(BoxLayout::kVertical, 10, 10, 10));
  47   AddChildView(new Label(ASCIIToUTF16("Dialog contents label!")));
  48 }
  49
  50 DialogExample::~DialogExample() {}
  51
  52 base::string16 DialogExample::GetWindowTitle() const {
  53   return ASCIIToUTF16("Dialog Widget Example");
  54 }
  55
  56 View* DialogExample::CreateExtraView() {
  57   LabelButton* button = new LabelButton(NULL, ASCIIToUTF16("Extra button!"));
  58   button->SetStyle(Button::STYLE_BUTTON);
  59   return button;
  60 }
  61
  62 View* DialogExample::CreateTitlebarExtraView() {
  63   Label* label = new Label(ASCIIToUTF16("Extra view!"));
  64   label->SetEnabledColor(SK_ColorBLUE);
  65   return label;
  66 }
  67
  68 View* DialogExample::CreateFootnoteView() {
  69   return new Label(ASCIIToUTF16("Footnote label!"));
  70 }
  71
  72 }  // namespace
  73
  74 WidgetExample::WidgetExample() : ExampleBase("Widget") {
  75 }
  76
  77 WidgetExample::~WidgetExample() {
  78 }
  79
  80 void WidgetExample::CreateExampleView(View* container) {
  81   container->SetLayoutManager(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 10));
  82   BuildButton(container, "Popup widget", POPUP);
  83   BuildButton(container, "Dialog widget", DIALOG);
  84   BuildButton(container, "Modal Dialog", MODAL_DIALOG);
  85 #if defined(OS_LINUX)
  86   // Windows does not support TYPE_CONTROL top-level widgets.
  87   BuildButton(container, "Child widget", CHILD);
  88 #endif
  89 }
  90
  91 void WidgetExample::BuildButton(View* container,
  92                                 const std::string& label,
  93                                 int tag) {
  94   LabelButton* button = new LabelButton(this, ASCIIToUTF16(label));
  95   button->SetFocusable(true);
  96   button->set_tag(tag);
  97   container->AddChildView(button);
  98 }
  99
 100 void WidgetExample::ShowWidget(View* sender, Widget::InitParams params) {
 101   // Setup shared Widget heirarchy and bounds parameters.
 102   params.parent = sender->GetWidget()->GetNativeView();
 103   params.bounds = gfx::Rect(sender->GetBoundsInScreen().CenterPoint(),
 104                             gfx::Size(300, 200));
 105
 106   Widget* widget = new Widget();
 107   widget->Init(params);
 108
 109   // If the Widget has no contents by default, add a view with a 'Close' button.
 110   if (!widget->GetContentsView()) {
 111     View* contents = new View();
 112     contents->SetLayoutManager(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0));
 113     contents->set_background(Background::CreateSolidBackground(SK_ColorGRAY));
 114     BuildButton(contents, "Close", CLOSE_WIDGET);
 115     widget->SetContentsView(contents);
 116   }
 117
 118   widget->Show();
 119 }
 120
 121 void WidgetExample::ButtonPressed(Button* sender, const ui::Event& event) {
 122   switch (sender->tag()) {
 123     case POPUP:
 124       ShowWidget(sender, Widget::InitParams(Widget::InitParams::TYPE_POPUP));
 125       break;
 126     case DIALOG: {
 127       DialogDelegate::CreateDialogWidget(new DialogExample(), NULL,
 128           sender->GetWidget()->GetNativeView())->Show();
 129       break;
 130     }
 131     case MODAL_DIALOG: {
 132       DialogDelegate::CreateDialogWidget(new ModalDialogExample(), NULL,
 133           sender->GetWidget()->GetNativeView())->Show();
 134       break;
 135     }
 136     case CHILD:
 137       ShowWidget(sender, Widget::InitParams(Widget::InitParams::TYPE_CONTROL));
 138       break;
 139     case CLOSE_WIDGET:
 140       sender->GetWidget()->Close();
 141       break;
 142   }
 143 }
 144
 145 }  // namespace examples
 146 }  // namespace views