src/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 DialogExample::DialogExample() {
  34   set_background(Background::CreateSolidBackground(SK_ColorGRAY));
  35   SetLayoutManager(new BoxLayout(BoxLayout::kVertical, 10, 10, 10));
  36   AddChildView(new Label(ASCIIToUTF16("Dialog contents label!")));
  37 }
  38
  39 DialogExample::~DialogExample() {}
  40
  41 base::string16 DialogExample::GetWindowTitle() const {
  42   return ASCIIToUTF16("Dialog Widget Example");
  43 }
  44
  45 View* DialogExample::CreateExtraView() {
  46   LabelButton* button = new LabelButton(NULL, ASCIIToUTF16("Extra button!"));
  47   button->SetStyle(Button::STYLE_BUTTON);
  48   return button;
  49 }
  50
  51 View* DialogExample::CreateTitlebarExtraView() {
  52   Label* label = new Label(ASCIIToUTF16("Extra view!"));
  53   label->SetEnabledColor(SK_ColorBLUE);
  54   return label;
  55 }
  56
  57 View* DialogExample::CreateFootnoteView() {
  58   return new Label(ASCIIToUTF16("Footnote label!"));
  59 }
  60
  61 }  // namespace
  62
  63 WidgetExample::WidgetExample() : ExampleBase("Widget") {
  64 }
  65
  66 WidgetExample::~WidgetExample() {
  67 }
  68
  69 void WidgetExample::CreateExampleView(View* container) {
  70   container->SetLayoutManager(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 10));
  71   BuildButton(container, "Popup widget", POPUP);
  72   BuildButton(container, "Dialog widget", DIALOG);
  73 #if defined(OS_LINUX)
  74   // Windows does not support TYPE_CONTROL top-level widgets.
  75   BuildButton(container, "Child widget", CHILD);
  76 #endif
  77 }
  78
  79 void WidgetExample::BuildButton(View* container,
  80                                 const std::string& label,
  81                                 int tag) {
  82   LabelButton* button = new LabelButton(this, ASCIIToUTF16(label));
  83   button->SetFocusable(true);
  84   button->set_tag(tag);
  85   container->AddChildView(button);
  86 }
  87
  88 void WidgetExample::ShowWidget(View* sender, Widget::InitParams params) {
  89   // Setup shared Widget heirarchy and bounds parameters.
  90   params.parent = sender->GetWidget()->GetNativeView();
  91   params.bounds = gfx::Rect(sender->GetBoundsInScreen().CenterPoint(),
  92                             gfx::Size(300, 200));
  93
  94   Widget* widget = new Widget();
  95   widget->Init(params);
  96
  97   // If the Widget has no contents by default, add a view with a 'Close' button.
  98   if (!widget->GetContentsView()) {
  99     View* contents = new View();
 100     contents->SetLayoutManager(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 0));
 101     contents->set_background(Background::CreateSolidBackground(SK_ColorGRAY));
 102     BuildButton(contents, "Close", CLOSE_WIDGET);
 103     widget->SetContentsView(contents);
 104   }
 105
 106   widget->Show();
 107 }
 108
 109 void WidgetExample::ButtonPressed(Button* sender, const ui::Event& event) {
 110   switch (sender->tag()) {
 111     case POPUP:
 112       ShowWidget(sender, Widget::InitParams(Widget::InitParams::TYPE_POPUP));
 113       break;
 114     case DIALOG: {
 115       DialogDelegate::CreateDialogWidget(new DialogExample(), NULL,
 116           sender->GetWidget()->GetNativeView())->Show();
 117       break;
 118     }
 119     case CHILD:
 120       ShowWidget(sender, Widget::InitParams(Widget::InitParams::TYPE_CONTROL));
 121       break;
 122     case CLOSE_WIDGET:
 123       sender->GetWidget()->Close();
 124       break;
 125   }
 126 }
 127
 128 }  // namespace examples
 129 }  // namespace views