src/ui/views/examples/button_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/button_example.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "grit/ui_resources.h"
   9 #include "ui/base/resource/resource_bundle.h"
  10 #include "ui/gfx/image/image.h"
  11 #include "ui/views/background.h"
  12 #include "ui/views/controls/button/blue_button.h"
  13 #include "ui/views/controls/button/image_button.h"
  14 #include "ui/views/controls/button/label_button.h"
  15 #include "ui/views/controls/button/text_button.h"
  16 #include "ui/views/layout/box_layout.h"
  17 #include "ui/views/view.h"
  18
  19 using base::ASCIIToUTF16;
  20
  21 namespace {
  22 const char kLabelButton[] = "Label Button";
  23 const char kTextButton[] = "Text Button";
  24 const char kMultiLineText[] = "Multi-Line\nButton Text Is Here To Stay!\n123";
  25 const char kLongText[] = "Start of Really Really Really Really Really Really "
  26                          "Really Really Really Really Really Really Really "
  27                          "Really Really Really Really Really Long Button Text";
  28 }  // namespace
  29
  30 namespace views {
  31 namespace examples {
  32
  33 ButtonExample::ButtonExample()
  34     : ExampleBase("Button"),
  35       text_button_(NULL),
  36       label_button_(NULL),
  37       image_button_(NULL),
  38       alignment_(TextButton::ALIGN_LEFT),
  39       use_native_theme_border_(false),
  40       icon_(NULL),
  41       count_(0) {
  42   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
  43   icon_ = rb.GetImageNamed(IDR_CLOSE_H).ToImageSkia();
  44 }
  45
  46 ButtonExample::~ButtonExample() {
  47 }
  48
  49 void ButtonExample::CreateExampleView(View* container) {
  50   container->set_background(Background::CreateSolidBackground(SK_ColorWHITE));
  51   container->SetLayoutManager(new BoxLayout(BoxLayout::kVertical, 10, 10, 10));
  52
  53   text_button_ = new TextButton(this, ASCIIToUTF16(kTextButton));
  54   text_button_->SetFocusable(true);
  55   container->AddChildView(text_button_);
  56
  57   label_button_ = new LabelButton(this, ASCIIToUTF16(kLabelButton));
  58   label_button_->SetFocusable(true);
  59   container->AddChildView(label_button_);
  60
  61   LabelButton* disabled_button =
  62       new LabelButton(this, ASCIIToUTF16("Disabled Button"));
  63   disabled_button->SetStyle(Button::STYLE_BUTTON);
  64   disabled_button->SetState(Button::STATE_DISABLED);
  65   container->AddChildView(disabled_button);
  66
  67   container->AddChildView(new BlueButton(this, ASCIIToUTF16("Blue Button")));
  68
  69   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
  70   image_button_ = new ImageButton(this);
  71   image_button_->SetFocusable(true);
  72   image_button_->SetImage(ImageButton::STATE_NORMAL,
  73                           rb.GetImageNamed(IDR_CLOSE).ToImageSkia());
  74   image_button_->SetImage(ImageButton::STATE_HOVERED,
  75                           rb.GetImageNamed(IDR_CLOSE_H).ToImageSkia());
  76   image_button_->SetImage(ImageButton::STATE_PRESSED,
  77                           rb.GetImageNamed(IDR_CLOSE_P).ToImageSkia());
  78   container->AddChildView(image_button_);
  79 }
  80
  81 void ButtonExample::TextButtonPressed(const ui::Event& event) {
  82   PrintStatus("Text Button Pressed! count: %d", ++count_);
  83   if (event.IsControlDown()) {
  84     if (event.IsShiftDown()) {
  85       if (event.IsAltDown()) {
  86         text_button_->SetMultiLine(!text_button_->multi_line());
  87         text_button_->SetText(ASCIIToUTF16(
  88             text_button_->multi_line() ? kMultiLineText : kTextButton));
  89       } else {
  90         switch (text_button_->icon_placement()) {
  91           case TextButton::ICON_ON_LEFT:
  92             text_button_->set_icon_placement(TextButton::ICON_ON_RIGHT);
  93             break;
  94           case TextButton::ICON_ON_RIGHT:
  95             text_button_->set_icon_placement(TextButton::ICON_ON_LEFT);
  96             break;
  97           case TextButton::ICON_CENTERED:
  98             // Do nothing.
  99             break;
 100         }
 101       }
 102     } else if (event.IsAltDown()) {
 103       if (text_button_->HasIcon())
 104         text_button_->SetIcon(gfx::ImageSkia());
 105       else
 106         text_button_->SetIcon(*icon_);
 107     } else {
 108       switch (alignment_) {
 109         case TextButton::ALIGN_LEFT:
 110           alignment_ = TextButton::ALIGN_CENTER;
 111           break;
 112         case TextButton::ALIGN_CENTER:
 113           alignment_ = TextButton::ALIGN_RIGHT;
 114           break;
 115         case TextButton::ALIGN_RIGHT:
 116           alignment_ = TextButton::ALIGN_LEFT;
 117           break;
 118       }
 119       text_button_->set_alignment(alignment_);
 120     }
 121   } else if (event.IsShiftDown()) {
 122     if (event.IsAltDown()) {
 123       text_button_->SetText(ASCIIToUTF16(
 124           text_button_->text().length() < 50 ? kLongText : kTextButton));
 125     } else {
 126       use_native_theme_border_ = !use_native_theme_border_;
 127       if (use_native_theme_border_) {
 128         text_button_->SetBorder(scoped_ptr<views::Border>(
 129             new TextButtonNativeThemeBorder(text_button_)));
 130       } else {
 131         text_button_->SetBorder(
 132             scoped_ptr<views::Border>(new TextButtonDefaultBorder()));
 133       }
 134     }
 135   } else if (event.IsAltDown()) {
 136     text_button_->SetIsDefault(!text_button_->is_default());
 137   } else {
 138     text_button_->ClearMaxTextSize();
 139   }
 140   example_view()->GetLayoutManager()->Layout(example_view());
 141 }
 142
 143 void ButtonExample::LabelButtonPressed(const ui::Event& event) {
 144   PrintStatus("Label Button Pressed! count: %d", ++count_);
 145   if (event.IsControlDown()) {
 146     if (event.IsShiftDown()) {
 147       if (event.IsAltDown()) {
 148         label_button_->SetTextMultiLine(!label_button_->GetTextMultiLine());
 149         label_button_->SetText(ASCIIToUTF16(
 150             label_button_->GetTextMultiLine() ? kMultiLineText : kLabelButton));
 151       } else {
 152         label_button_->SetText(ASCIIToUTF16(
 153             label_button_->GetText().empty() ? kLongText :
 154                 label_button_->GetText().length() > 50 ? kLabelButton : ""));
 155       }
 156     } else if (event.IsAltDown()) {
 157       label_button_->SetImage(Button::STATE_NORMAL,
 158           label_button_->GetImage(Button::STATE_NORMAL).isNull() ?
 159           *icon_ : gfx::ImageSkia());
 160     } else {
 161       label_button_->SetHorizontalAlignment(
 162           static_cast<gfx::HorizontalAlignment>(
 163               (label_button_->GetHorizontalAlignment() + 1) % 3));
 164     }
 165   } else if (event.IsShiftDown()) {
 166     if (event.IsAltDown()) {
 167       label_button_->SetFocusable(!label_button_->IsFocusable());
 168     } else {
 169       label_button_->SetStyle(static_cast<Button::ButtonStyle>(
 170           (label_button_->style() + 1) % Button::STYLE_COUNT));
 171     }
 172   } else if (event.IsAltDown()) {
 173     label_button_->SetIsDefault(!label_button_->is_default());
 174   } else {
 175     label_button_->set_min_size(gfx::Size());
 176   }
 177   example_view()->GetLayoutManager()->Layout(example_view());
 178 }
 179
 180 void ButtonExample::ButtonPressed(Button* sender, const ui::Event& event) {
 181   if (sender == text_button_)
 182     TextButtonPressed(event);
 183   else if (sender == label_button_)
 184     LabelButtonPressed(event);
 185   else
 186     PrintStatus("Image Button Pressed! count: %d", ++count_);
 187 }
 188
 189 }  // namespace examples
 190 }  // namespace views