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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/button_example.h"
      6 
      7 #include "base/strings/utf_string_conversions.h"
      8 #include "ui/base/resource/resource_bundle.h"
      9 #include "ui/gfx/image/image.h"
     10 #include "ui/resources/grit/ui_resources.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/layout/box_layout.h"
     16 #include "ui/views/view.h"
     17 
     18 using base::ASCIIToUTF16;
     19 
     20 namespace {
     21 const char kLabelButton[] = "Label Button";
     22 const char kMultiLineText[] = "Multi-Line\nButton Text Is Here To Stay!\n123";
     23 const char kLongText[] = "Start of Really Really Really Really Really Really "
     24                          "Really Really Really Really Really Really Really "
     25                          "Really Really Really Really Really Long Button Text";
     26 }  // namespace
     27 
     28 namespace views {
     29 namespace examples {
     30 
     31 ButtonExample::ButtonExample()
     32     : ExampleBase("Button"),
     33       label_button_(NULL),
     34       image_button_(NULL),
     35       icon_(NULL),
     36       count_(0) {
     37   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
     38   icon_ = rb.GetImageNamed(IDR_CLOSE_H).ToImageSkia();
     39 }
     40 
     41 ButtonExample::~ButtonExample() {
     42 }
     43 
     44 void ButtonExample::CreateExampleView(View* container) {
     45   container->set_background(Background::CreateSolidBackground(SK_ColorWHITE));
     46   container->SetLayoutManager(new BoxLayout(BoxLayout::kVertical, 10, 10, 10));
     47 
     48   label_button_ = new LabelButton(this, ASCIIToUTF16(kLabelButton));
     49   label_button_->SetFocusable(true);
     50   container->AddChildView(label_button_);
     51 
     52   LabelButton* disabled_button =
     53       new LabelButton(this, ASCIIToUTF16("Disabled Button"));
     54   disabled_button->SetStyle(Button::STYLE_BUTTON);
     55   disabled_button->SetState(Button::STATE_DISABLED);
     56   container->AddChildView(disabled_button);
     57 
     58   container->AddChildView(new BlueButton(this, ASCIIToUTF16("Blue Button")));
     59 
     60   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
     61   image_button_ = new ImageButton(this);
     62   image_button_->SetFocusable(true);
     63   image_button_->SetImage(ImageButton::STATE_NORMAL,
     64                           rb.GetImageNamed(IDR_CLOSE).ToImageSkia());
     65   image_button_->SetImage(ImageButton::STATE_HOVERED,
     66                           rb.GetImageNamed(IDR_CLOSE_H).ToImageSkia());
     67   image_button_->SetImage(ImageButton::STATE_PRESSED,
     68                           rb.GetImageNamed(IDR_CLOSE_P).ToImageSkia());
     69   container->AddChildView(image_button_);
     70 }
     71 
     72 void ButtonExample::LabelButtonPressed(const ui::Event& event) {
     73   PrintStatus("Label Button Pressed! count: %d", ++count_);
     74   if (event.IsControlDown()) {
     75     if (event.IsShiftDown()) {
     76       if (event.IsAltDown()) {
     77         label_button_->SetTextMultiLine(!label_button_->GetTextMultiLine());
     78         label_button_->SetText(ASCIIToUTF16(
     79             label_button_->GetTextMultiLine() ? kMultiLineText : kLabelButton));
     80       } else {
     81         label_button_->SetText(ASCIIToUTF16(
     82             label_button_->GetText().empty() ? kLongText :
     83                 label_button_->GetText().length() > 50 ? kLabelButton : ""));
     84       }
     85     } else if (event.IsAltDown()) {
     86       label_button_->SetImage(Button::STATE_NORMAL,
     87           label_button_->GetImage(Button::STATE_NORMAL).isNull() ?
     88           *icon_ : gfx::ImageSkia());
     89     } else {
     90       label_button_->SetHorizontalAlignment(
     91           static_cast<gfx::HorizontalAlignment>(
     92               (label_button_->GetHorizontalAlignment() + 1) % 3));
     93     }
     94   } else if (event.IsShiftDown()) {
     95     if (event.IsAltDown()) {
     96       label_button_->SetFocusable(!label_button_->IsFocusable());
     97     } else {
     98       label_button_->SetStyle(static_cast<Button::ButtonStyle>(
     99           (label_button_->style() + 1) % Button::STYLE_COUNT));
    100     }
    101   } else if (event.IsAltDown()) {
    102     label_button_->SetIsDefault(!label_button_->is_default());
    103   } else {
    104     label_button_->SetMinSize(gfx::Size());
    105   }
    106   example_view()->GetLayoutManager()->Layout(example_view());
    107 }
    108 
    109 void ButtonExample::ButtonPressed(Button* sender, const ui::Event& event) {
    110   if (sender == label_button_)
    111     LabelButtonPressed(event);
    112   else
    113     PrintStatus("Image Button Pressed! count: %d", ++count_);
    114 }
    115 
    116 }  // namespace examples
    117 }  // namespace views
    118