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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 "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   virtual ~DialogExample();
     27   virtual base::string16 GetWindowTitle() const OVERRIDE;
     28   virtual View* CreateExtraView() OVERRIDE;
     29   virtual View* CreateTitlebarExtraView() OVERRIDE;
     30   virtual 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
    130