text: // Copyright 2015 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #include "ui/views/style/platform_style.h"
  
  #include "base/memory/ptr_util.h"
  #include "build/build_config.h"
  #include "ui/base/material_design/material_design_controller.h"
  #include "ui/base/resource/resource_bundle.h"
  #include "ui/gfx/shadow_value.h"
  #include "ui/native_theme/native_theme.h"
  #include "ui/resources/grit/ui_resources.h"
  #include "ui/views/background.h"
  #include "ui/views/controls/button/label_button.h"
  #include "ui/views/controls/button/label_button_border.h"
  #include "ui/views/controls/focusable_border.h"
  #include "ui/views/controls/scrollbar/scroll_bar_views.h"
  
  #if defined(OS_CHROMEOS)
  #include "ui/views/controls/scrollbar/overlay_scroll_bar.h"
  #elif defined(OS_LINUX)
  #define DESKTOP_LINUX
  #endif
  
  namespace views {
  namespace {
  
  #if !defined(DESKTOP_LINUX) && !defined(OS_MACOSX)
  // Default text and shadow colors for STYLE_BUTTON.
  const SkColor kStyleButtonTextColor = SK_ColorBLACK;
  const SkColor kStyleButtonShadowColor = SK_ColorWHITE;
  #endif
  
  }  // namespace
  
  #if !defined(OS_MACOSX)
  
  const int PlatformStyle::kComboboxNormalArrowPadding = 7;
  const int PlatformStyle::kMinLabelButtonWidth = 70;
  const int PlatformStyle::kMinLabelButtonHeight = 33;
  const bool PlatformStyle::kDefaultLabelButtonHasBoldFont = true;
  const bool PlatformStyle::kDialogDefaultButtonCanBeCancel = true;
  const bool PlatformStyle::kSelectWordOnRightClick = false;
  const CustomButton::NotifyAction PlatformStyle::kMenuNotifyActivationAction =
      CustomButton::NOTIFY_ON_RELEASE;
  const CustomButton::KeyClickAction PlatformStyle::kKeyClickActionOnSpace =
      CustomButton::CLICK_ON_KEY_RELEASE;
  const bool PlatformStyle::kReturnClicksFocusedControl = true;
  const bool PlatformStyle::kTreeViewHasFocusRing = false;
  const bool PlatformStyle::kTreeViewSelectionPaintsEntireRow = false;
  const bool PlatformStyle::kUseRipples = true;
  const bool PlatformStyle::kMirrorBubbleArrowInRTLByDefault = true;
  
  // static
  gfx::ImageSkia PlatformStyle::CreateComboboxArrow(bool is_enabled,
                                                    Combobox::Style style) {
    ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
    return *rb.GetImageSkiaNamed(IDR_MENU_DROPARROW);
  }
  
  // static
  std::unique_ptr<ScrollBar> PlatformStyle::CreateScrollBar(bool is_horizontal) {
  #if defined(OS_CHROMEOS)
    return base::MakeUnique<OverlayScrollBar>(is_horizontal);
  #else
    return base::MakeUnique<ScrollBarViews>(is_horizontal);
  #endif
  }
  
  // static
  SkColor PlatformStyle::TextColorForButton(
      const ButtonColorByState& color_by_state,
      const LabelButton& button) {
    return color_by_state[button.state()];
  }
  
  // static
  void PlatformStyle::OnTextfieldEditFailed() {}
  
  #endif  // OS_MACOSX
  
  #if !defined(DESKTOP_LINUX) && !defined(OS_MACOSX)
  // static
  void PlatformStyle::ApplyLabelButtonTextStyle(
      Label* label,
      ButtonColorByState* color_by_state) {
    ButtonColorByState& colors = *color_by_state;
    colors[Button::STATE_NORMAL] = kStyleButtonTextColor;
    colors[Button::STATE_HOVERED] = kStyleButtonTextColor;
    colors[Button::STATE_PRESSED] = kStyleButtonTextColor;
  
    label->SetShadows(gfx::ShadowValues(
        1, gfx::ShadowValue(gfx::Vector2d(0, 1), 0, kStyleButtonShadowColor)));
  }
  #endif
  
  #if !defined(DESKTOP_LINUX)
  // static
  std::unique_ptr<Border> PlatformStyle::CreateThemedLabelButtonBorder(
      LabelButton* button) {
    return button->CreateDefaultBorder();
  }
  #endif
  
  }  // namespace views
  