src/ash/system/tray/tray_popup_label_button_border.cc

   1 // Copyright 2013 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 "ash/system/tray/tray_popup_label_button_border.h"
   6
   7 #include "base/i18n/rtl.h"
   8 #include "grit/ash_resources.h"
   9 #include "ui/gfx/canvas.h"
  10 #include "ui/gfx/vector2d.h"
  11 #include "ui/native_theme/native_theme.h"
  12 #include "ui/views/controls/button/label_button.h"
  13 #include "ui/views/native_theme_delegate.h"
  14
  15 namespace ash {
  16 namespace internal {
  17
  18 namespace {
  19
  20 const int kTrayPopupLabelButtonPaddingHorizontal = 16;
  21 const int kTrayPopupLabelButtonPaddingVertical = 8;
  22
  23 const int kTrayPopupLabelButtonBorderImagesNormal[] = {
  24     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  25     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  26     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  27     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  28     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  29     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  30     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  31     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  32     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_NORMAL_BACKGROUND,
  33 };
  34
  35 const int kTrayPopupLabelButtonBorderImagesHovered[] = {
  36     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  37     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  38     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  39     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  40     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_HOVER_BACKGROUND,
  41     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  42     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  43     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  44     IDR_AURA_TRAY_POPUP_LABEL_BUTTON_BORDER,
  45 };
  46
  47 }  // namespace
  48
  49 TrayPopupLabelButtonBorder::TrayPopupLabelButtonBorder()
  50     : LabelButtonBorder(views::Button::STYLE_TEXTBUTTON) {
  51   SetPainter(false, views::Button::STATE_NORMAL,
  52              views::Painter::CreateImageGridPainter(
  53                  kTrayPopupLabelButtonBorderImagesNormal));
  54   SetPainter(false, views::Button::STATE_DISABLED,
  55              views::Painter::CreateImageGridPainter(
  56                  kTrayPopupLabelButtonBorderImagesNormal));
  57   SetPainter(false, views::Button::STATE_HOVERED,
  58              views::Painter::CreateImageGridPainter(
  59                  kTrayPopupLabelButtonBorderImagesHovered));
  60   SetPainter(false, views::Button::STATE_PRESSED,
  61              views::Painter::CreateImageGridPainter(
  62                  kTrayPopupLabelButtonBorderImagesHovered));
  63 }
  64
  65 TrayPopupLabelButtonBorder::~TrayPopupLabelButtonBorder() {}
  66
  67 void TrayPopupLabelButtonBorder::Paint(const views::View& view,
  68                                        gfx::Canvas* canvas) {
  69   const views::NativeThemeDelegate* native_theme_delegate =
  70       static_cast<const views::LabelButton*>(&view);
  71   ui::NativeTheme::ExtraParams extra;
  72   const ui::NativeTheme::State state =
  73       native_theme_delegate->GetThemeState(&extra);
  74   if (state == ui::NativeTheme::kNormal ||
  75       state == ui::NativeTheme::kDisabled) {
  76     // In normal and disabled state, the border is a vertical bar separating the
  77     // button from the preceding sibling. If this button is its parent's first
  78     // visible child, the separator bar should be omitted.
  79     const views::View* first_visible_child = NULL;
  80     for (int i = 0; i < view.parent()->child_count(); ++i) {
  81       const views::View* child = view.parent()->child_at(i);
  82       if (child->visible()) {
  83         first_visible_child = child;
  84         break;
  85       }
  86     }
  87     if (first_visible_child == &view)
  88       return;
  89   }
  90   if (base::i18n::IsRTL()) {
  91     canvas->Save();
  92     canvas->Translate(gfx::Vector2d(view.width(), 0));
  93     canvas->Scale(-1, 1);
  94     LabelButtonBorder::Paint(view, canvas);
  95     canvas->Restore();
  96   } else {
  97     LabelButtonBorder::Paint(view, canvas);
  98   }
  99 }
 100
 101 gfx::Insets TrayPopupLabelButtonBorder::GetInsets() const {
 102   return gfx::Insets(kTrayPopupLabelButtonPaddingVertical,
 103                      kTrayPopupLabelButtonPaddingHorizontal,
 104                      kTrayPopupLabelButtonPaddingVertical,
 105                      kTrayPopupLabelButtonPaddingHorizontal);
 106 }
 107
 108 }  // namespace internal
 109 }  // namespace ash