src/ui/views/examples/bubble_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/bubble_example.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "ui/views/bubble/bubble_delegate.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/widget/widget.h"
  13
  14 using base::ASCIIToUTF16;
  15
  16 namespace views {
  17 namespace examples {
  18
  19 namespace {
  20
  21 SkColor colors[] = { SK_ColorWHITE, SK_ColorGRAY, SK_ColorCYAN, 0xFFC1B1E1 };
  22
  23 BubbleBorder::Arrow arrows[] = {
  24     BubbleBorder::TOP_LEFT, BubbleBorder::TOP_CENTER,
  25     BubbleBorder::TOP_RIGHT, BubbleBorder::RIGHT_TOP,
  26     BubbleBorder::RIGHT_CENTER, BubbleBorder::RIGHT_BOTTOM,
  27     BubbleBorder::BOTTOM_RIGHT, BubbleBorder::BOTTOM_CENTER,
  28     BubbleBorder::BOTTOM_LEFT, BubbleBorder::LEFT_BOTTOM,
  29     BubbleBorder::LEFT_CENTER, BubbleBorder::LEFT_TOP };
  30
  31 base::string16 GetArrowName(BubbleBorder::Arrow arrow) {
  32   switch (arrow) {
  33     case BubbleBorder::TOP_LEFT:      return ASCIIToUTF16("TOP_LEFT");
  34     case BubbleBorder::TOP_RIGHT:     return ASCIIToUTF16("TOP_RIGHT");
  35     case BubbleBorder::BOTTOM_LEFT:   return ASCIIToUTF16("BOTTOM_LEFT");
  36     case BubbleBorder::BOTTOM_RIGHT:  return ASCIIToUTF16("BOTTOM_RIGHT");
  37     case BubbleBorder::LEFT_TOP:      return ASCIIToUTF16("LEFT_TOP");
  38     case BubbleBorder::RIGHT_TOP:     return ASCIIToUTF16("RIGHT_TOP");
  39     case BubbleBorder::LEFT_BOTTOM:   return ASCIIToUTF16("LEFT_BOTTOM");
  40     case BubbleBorder::RIGHT_BOTTOM:  return ASCIIToUTF16("RIGHT_BOTTOM");
  41     case BubbleBorder::TOP_CENTER:    return ASCIIToUTF16("TOP_CENTER");
  42     case BubbleBorder::BOTTOM_CENTER: return ASCIIToUTF16("BOTTOM_CENTER");
  43     case BubbleBorder::LEFT_CENTER:   return ASCIIToUTF16("LEFT_CENTER");
  44     case BubbleBorder::RIGHT_CENTER:  return ASCIIToUTF16("RIGHT_CENTER");
  45     case BubbleBorder::NONE:          return ASCIIToUTF16("NONE");
  46     case BubbleBorder::FLOAT:         return ASCIIToUTF16("FLOAT");
  47   }
  48   return ASCIIToUTF16("INVALID");
  49 }
  50
  51 class ExampleBubble : public BubbleDelegateView {
  52  public:
  53    ExampleBubble(View* anchor, BubbleBorder::Arrow arrow)
  54        : BubbleDelegateView(anchor, arrow) {}
  55
  56  protected:
  57   void Init() override {
  58     SetLayoutManager(new BoxLayout(BoxLayout::kVertical, 50, 50, 0));
  59     AddChildView(new Label(GetArrowName(arrow())));
  60   }
  61
  62  private:
  63   DISALLOW_COPY_AND_ASSIGN(ExampleBubble);
  64 };
  65
  66 }  // namespace
  67
  68 BubbleExample::BubbleExample() : ExampleBase("Bubble") {}
  69
  70 BubbleExample::~BubbleExample() {}
  71
  72 void BubbleExample::CreateExampleView(View* container) {
  73   PrintStatus("Click with optional modifiers: [Ctrl] for set_arrow(NONE), "
  74      "[Alt] for set_arrow(FLOAT), or [Shift] to reverse the arrow iteration.");
  75   container->SetLayoutManager(new BoxLayout(BoxLayout::kHorizontal, 0, 0, 10));
  76   no_shadow_ = new LabelButton(this, ASCIIToUTF16("No Shadow"));
  77   container->AddChildView(no_shadow_);
  78   big_shadow_ = new LabelButton(this, ASCIIToUTF16("Big Shadow"));
  79   container->AddChildView(big_shadow_);
  80   small_shadow_ = new LabelButton(this, ASCIIToUTF16("Small Shadow"));
  81   container->AddChildView(small_shadow_);
  82   align_to_edge_ = new LabelButton(this, ASCIIToUTF16("Align To Edge"));
  83   container->AddChildView(align_to_edge_);
  84   persistent_ = new LabelButton(this, ASCIIToUTF16("Persistent"));
  85   container->AddChildView(persistent_);
  86 }
  87
  88 void BubbleExample::ButtonPressed(Button* sender, const ui::Event& event) {
  89   static int arrow_index = 0, color_index = 0;
  90   static const int count = arraysize(arrows);
  91   arrow_index = (arrow_index + count + (event.IsShiftDown() ? -1 : 1)) % count;
  92   BubbleBorder::Arrow arrow = arrows[arrow_index];
  93   if (event.IsControlDown())
  94     arrow = BubbleBorder::NONE;
  95   else if (event.IsAltDown())
  96     arrow = BubbleBorder::FLOAT;
  97
  98   ExampleBubble* bubble = new ExampleBubble(sender, arrow);
  99   bubble->set_color(colors[(color_index++) % arraysize(colors)]);
 100
 101   if (sender == no_shadow_)
 102     bubble->set_shadow(BubbleBorder::NO_SHADOW);
 103   else if (sender == big_shadow_)
 104     bubble->set_shadow(BubbleBorder::BIG_SHADOW);
 105   else if (sender == small_shadow_)
 106     bubble->set_shadow(BubbleBorder::SMALL_SHADOW);
 107
 108   if (sender == persistent_)
 109     bubble->set_close_on_deactivate(false);
 110
 111   BubbleDelegateView::CreateBubble(bubble);
 112   if (sender == align_to_edge_)
 113     bubble->SetAlignment(BubbleBorder::ALIGN_EDGE_TO_ANCHOR_EDGE);
 114
 115   bubble->GetWidget()->Show();
 116 }
 117
 118 }  // namespace examples
 119 }  // namespace views