ui/gfx/native_theme_aura.cc - chromium/src - Git at Google

 // Copyright (c) 2012 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/gfx/native_theme_aura.h"

 #include "base/logging.h"
 #include "grit/gfx_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 #include "ui/gfx/skbitmap_operations.h"

 namespace {

 const SkColor kMenuBackgroundColor = SK_ColorWHITE;

 // Theme colors returned by GetSystemColor().
 const SkColor kInvalidColorIdColor = SkColorSetRGB(255, 0, 128);
 // Dialogs:
 const SkColor kDialogBackgroundColor = SK_ColorWHITE;
 // FocusableBorder:
 const SkColor kFocusedBorderColor = SkColorSetRGB(0x4D, 0x90, 0xFE);
 const SkColor kUnfocusedBorderColor = SkColorSetRGB(0xD9, 0xD9, 0xD9);
 // TextButton:
 const SkColor kTextButtonBackgroundColor = SkColorSetRGB(0xDE, 0xDE, 0xDE);
 const SkColor kTextButtonEnabledColor = SkColorSetRGB(0x44, 0x44, 0x44);
 const SkColor kTextButtonDisabledColor = SkColorSetRGB(0x99, 0x99, 0x99);
 const SkColor kTextButtonHighlightColor = SkColorSetRGB(0, 0, 0);
 const SkColor kTextButtonHoverColor = kTextButtonEnabledColor;
 // MenuItem:
 const SkColor kEnabledMenuItemForegroundColor = SK_ColorBLACK;
 const SkColor kDisabledMenuItemForegroundColor =
     SkColorSetRGB(0x80, 0x80, 0x80);
 const SkColor kFocusedMenuItemBackgroundColor = SkColorSetRGB(0xF1, 0xF1, 0xF1);
 // Textfield:
 const SkColor kTextfieldDefaultColor = SK_ColorBLACK;
 const SkColor kTextfieldDefaultBackground = SK_ColorWHITE;
 const SkColor kTextfieldSelectionBackgroundFocused =
     SkColorSetARGB(0x54, 0x4D, 0x90, 0xFE);
 const SkColor kTextfieldSelectionBackgroundUnfocused = SK_ColorLTGRAY;
 const SkColor kTextfieldSelectionColor =
     color_utils::AlphaBlend(SK_ColorBLACK,
         kTextfieldSelectionBackgroundFocused, 0xdd);

 }  // namespace

 namespace gfx {

 // static
 const NativeTheme* NativeTheme::instance() {
   return NativeThemeAura::instance();
 }

 // static
 const NativeThemeAura* NativeThemeAura::instance() {
   CR_DEFINE_STATIC_LOCAL(NativeThemeAura, s_native_theme, ());
   return &s_native_theme;
 }

 NativeThemeAura::NativeThemeAura() {
   // We don't draw scrollbar buttons.
   set_scrollbar_button_length(0);
 }

 NativeThemeAura::~NativeThemeAura() {
 }

 SkColor NativeThemeAura::GetSystemColor(ColorId color_id) const {
   // This implementation returns hardcoded colors.
   switch (color_id) {

     // Dialogs
     case kColorId_DialogBackground:
       return kDialogBackgroundColor;

     // FocusableBorder
     case kColorId_FocusedBorderColor:
       return kFocusedBorderColor;
     case kColorId_UnfocusedBorderColor:
       return kUnfocusedBorderColor;

     // TextButton
     case kColorId_TextButtonBackgroundColor:
       return kTextButtonBackgroundColor;
     case kColorId_TextButtonEnabledColor:
       return kTextButtonEnabledColor;
     case kColorId_TextButtonDisabledColor:
       return kTextButtonDisabledColor;
     case kColorId_TextButtonHighlightColor:
       return kTextButtonHighlightColor;
     case kColorId_TextButtonHoverColor:
       return kTextButtonHoverColor;

     // MenuItem
     case kColorId_EnabledMenuItemForegroundColor:
       return kEnabledMenuItemForegroundColor;
     case kColorId_DisabledMenuItemForegroundColor:
       return kDisabledMenuItemForegroundColor;
     case kColorId_FocusedMenuItemBackgroundColor:
       return kFocusedMenuItemBackgroundColor;

     // Textfield
     case kColorId_TextfieldDefaultColor:
       return kTextfieldDefaultColor;
     case kColorId_TextfieldDefaultBackground:
       return kTextfieldDefaultBackground;
     case kColorId_TextfieldSelectionColor:
       return kTextfieldSelectionColor;
     case kColorId_TextfieldSelectionBackgroundFocused:
       return kTextfieldSelectionBackgroundFocused;
     case kColorId_TextfieldSelectionBackgroundUnfocused:
       return kTextfieldSelectionBackgroundUnfocused;

     default:
       NOTREACHED() << "Invalid color_id: " << color_id;
       break;
   }

   return kInvalidColorIdColor;
 }

 void NativeThemeAura::PaintMenuPopupBackground(SkCanvas* canvas,
                                                const gfx::Size& size) const {
   canvas->drawColor(kMenuBackgroundColor, SkXfermode::kSrc_Mode);
 }

 void NativeThemeAura::PaintScrollbarTrack(
     SkCanvas* canvas,
     Part part,
     State state,
     const ScrollbarTrackExtraParams& extra_params,
     const gfx::Rect& rect) const {
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   if (part == kScrollbarVerticalTrack) {
     int center_offset = 0;
     int center_height = rect.height();

     if (rect.y() == extra_params.track_y) {
       // TODO(derat): Honor |state| instead of only using the highlighted images
       // after updating WebKit so we can draw the entire track in one go instead
       // of as two separate pieces: otherwise, only the portion of the scrollbar
       // that the mouse is over gets the highlighted state.
       SkBitmap* top = rb.GetBitmapNamed(IDR_SCROLL_BASE_VERTICAL_TOP_H);
       DrawTiledImage(canvas, *top,
                      0, 0, 1.0, 1.0,
                      rect.x(), rect.y(), top->width(), top->height());
       center_offset += top->height();
       center_height -= top->height();
     }

     if (rect.y() + rect.height() ==
         extra_params.track_y + extra_params.track_height) {
       SkBitmap* bottom = rb.GetBitmapNamed(IDR_SCROLL_BASE_VERTICAL_BOTTOM_H);
       DrawTiledImage(canvas, *bottom,
                      0, 0, 1.0, 1.0,
                      rect.x(), rect.y() + rect.height() - bottom->height(),
                      bottom->width(), bottom->height());
       center_height -= bottom->height();
     }

     if (center_height > 0) {
       SkBitmap* center = rb.GetBitmapNamed(IDR_SCROLL_BASE_VERTICAL_CENTER_H);
       DrawTiledImage(canvas, *center,
                      0, 0, 1.0, 1.0,
                      rect.x(), rect.y() + center_offset,
                      center->width(), center_height);
     }
   } else {
     int center_offset = 0;
     int center_width = rect.width();

     if (rect.x() == extra_params.track_x) {
       SkBitmap* left = rb.GetBitmapNamed(IDR_SCROLL_BASE_HORIZONTAL_LEFT_H);
       DrawTiledImage(canvas, *left,
                      0, 0, 1.0, 1.0,
                      rect.x(), rect.y(), left->width(), left->height());
       center_offset += left->width();
       center_width -= left->width();
     }

     if (rect.x() + rect.width() ==
         extra_params.track_x + extra_params.track_width) {
       SkBitmap* right = rb.GetBitmapNamed(IDR_SCROLL_BASE_HORIZONTAL_RIGHT_H);
       DrawTiledImage(canvas, *right,
                      0, 0, 1.0, 1.0,
                      rect.x() + rect.width() - right->width(), rect.y(),
                      right->width(), right->height());
       center_width -= right->width();
     }

     if (center_width > 0) {
       SkBitmap* center = rb.GetBitmapNamed(IDR_SCROLL_BASE_HORIZONTAL_CENTER_H);
       DrawTiledImage(canvas, *center,
                      0, 0, 1.0, 1.0,
                      rect.x() + center_offset, rect.y(),
                      center_width, center->height());
     }
   }
 }

 void NativeThemeAura::PaintArrowButton(SkCanvas* canvas,
                                        const gfx::Rect& rect,
                                        Part part,
                                        State state) const {
   DCHECK(rect.IsEmpty());
 }

 void NativeThemeAura::PaintScrollbarThumb(SkCanvas* canvas,
                                           Part part,
                                           State state,
                                           const gfx::Rect& rect) const {
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   if (part == kScrollbarVerticalThumb) {
     int top_resource_id =
         state == kHovered ? IDR_SCROLL_THUMB_VERTICAL_TOP_H :
         state == kPressed ? IDR_SCROLL_THUMB_VERTICAL_TOP_P :
         IDR_SCROLL_THUMB_VERTICAL_TOP;
     SkBitmap* top = rb.GetBitmapNamed(top_resource_id);
     DrawTiledImage(canvas, *top,
                    0, 0, 1.0, 1.0,
                    rect.x(), rect.y(), top->width(), top->height());

     int bottom_resource_id =
         state == kHovered ? IDR_SCROLL_THUMB_VERTICAL_BOTTOM_H :
         state == kPressed ? IDR_SCROLL_THUMB_VERTICAL_BOTTOM_P :
         IDR_SCROLL_THUMB_VERTICAL_BOTTOM;
     SkBitmap* bottom = rb.GetBitmapNamed(bottom_resource_id);
     DrawTiledImage(canvas, *bottom,
                    0, 0, 1.0, 1.0,
                    rect.x(), rect.y() + rect.height() - bottom->height(),
                    bottom->width(), bottom->height());

     if (rect.height() > top->height() + bottom->height()) {
       int center_resource_id =
           state == kHovered ? IDR_SCROLL_THUMB_VERTICAL_CENTER_H :
           state == kPressed ? IDR_SCROLL_THUMB_VERTICAL_CENTER_P :
           IDR_SCROLL_THUMB_VERTICAL_CENTER;
       SkBitmap* center = rb.GetBitmapNamed(center_resource_id);
       DrawTiledImage(canvas, *center,
                      0, 0, 1.0, 1.0,
                      rect.x(), rect.y() + top->height(),
                      center->width(),
                      rect.height() - top->height() - bottom->height());
     }
   } else {
     int left_resource_id =
         state == kHovered ? IDR_SCROLL_THUMB_HORIZONTAL_LEFT_H :
         state == kPressed ? IDR_SCROLL_THUMB_HORIZONTAL_LEFT_P :
         IDR_SCROLL_THUMB_HORIZONTAL_LEFT;
     SkBitmap* left = rb.GetBitmapNamed(left_resource_id);
     DrawTiledImage(canvas, *left,
                    0, 0, 1.0, 1.0,
                    rect.x(), rect.y(), left->width(), left->height());

     int right_resource_id =
         state == kHovered ? IDR_SCROLL_THUMB_HORIZONTAL_RIGHT_H :
         state == kPressed ? IDR_SCROLL_THUMB_HORIZONTAL_RIGHT_P :
         IDR_SCROLL_THUMB_HORIZONTAL_RIGHT;
     SkBitmap* right = rb.GetBitmapNamed(right_resource_id);
     DrawTiledImage(canvas, *right,
                    0, 0, 1.0, 1.0,
                    rect.x() + rect.width() - right->width(), rect.y(),
                    right->width(), right->height());

     if (rect.width() > left->width() + right->width()) {
       int center_resource_id =
           state == kHovered ? IDR_SCROLL_THUMB_HORIZONTAL_CENTER_H :
           state == kPressed ? IDR_SCROLL_THUMB_HORIZONTAL_CENTER_P :
           IDR_SCROLL_THUMB_HORIZONTAL_CENTER;
       SkBitmap* center = rb.GetBitmapNamed(center_resource_id);
       DrawTiledImage(canvas, *center,
                      0, 0, 1.0, 1.0,
                      rect.x() + left->width(), rect.y(),
                      rect.width() - left->width() - right->width(),
                      center->height());
     }
   }
 }

 }  // namespace gfx
	// Copyright (c) 2012 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/gfx/native_theme_aura.h"

	#include "base/logging.h"
	#include "grit/gfx_resources.h"
	#include "ui/base/resource/resource_bundle.h"
	#include "ui/gfx/rect.h"
	#include "ui/gfx/size.h"
	#include "ui/gfx/skbitmap_operations.h"

	namespace {

	const SkColor kMenuBackgroundColor = SK_ColorWHITE;

	// Theme colors returned by GetSystemColor().
	const SkColor kInvalidColorIdColor = SkColorSetRGB(255, 0, 128);
	// Dialogs:
	const SkColor kDialogBackgroundColor = SK_ColorWHITE;
	// FocusableBorder:
	const SkColor kFocusedBorderColor = SkColorSetRGB(0x4D, 0x90, 0xFE);
	const SkColor kUnfocusedBorderColor = SkColorSetRGB(0xD9, 0xD9, 0xD9);
	// TextButton:
	const SkColor kTextButtonBackgroundColor = SkColorSetRGB(0xDE, 0xDE, 0xDE);
	const SkColor kTextButtonEnabledColor = SkColorSetRGB(0x44, 0x44, 0x44);
	const SkColor kTextButtonDisabledColor = SkColorSetRGB(0x99, 0x99, 0x99);
	const SkColor kTextButtonHighlightColor = SkColorSetRGB(0, 0, 0);
	const SkColor kTextButtonHoverColor = kTextButtonEnabledColor;
	// MenuItem:
	const SkColor kEnabledMenuItemForegroundColor = SK_ColorBLACK;
	const SkColor kDisabledMenuItemForegroundColor =
	SkColorSetRGB(0x80, 0x80, 0x80);
	const SkColor kFocusedMenuItemBackgroundColor = SkColorSetRGB(0xF1, 0xF1, 0xF1);
	// Textfield:
	const SkColor kTextfieldDefaultColor = SK_ColorBLACK;
	const SkColor kTextfieldDefaultBackground = SK_ColorWHITE;
	const SkColor kTextfieldSelectionBackgroundFocused =
	SkColorSetARGB(0x54, 0x4D, 0x90, 0xFE);
	const SkColor kTextfieldSelectionBackgroundUnfocused = SK_ColorLTGRAY;
	const SkColor kTextfieldSelectionColor =
	color_utils::AlphaBlend(SK_ColorBLACK,
	kTextfieldSelectionBackgroundFocused, 0xdd);

	} // namespace

	namespace gfx {

	// static
	const NativeTheme* NativeTheme::instance() {
	return NativeThemeAura::instance();
	}

	// static
	const NativeThemeAura* NativeThemeAura::instance() {
	CR_DEFINE_STATIC_LOCAL(NativeThemeAura, s_native_theme, ());
	return &s_native_theme;
	}

	NativeThemeAura::NativeThemeAura() {
	// We don't draw scrollbar buttons.
	set_scrollbar_button_length(0);
	}

	NativeThemeAura::~NativeThemeAura() {
	}

	SkColor NativeThemeAura::GetSystemColor(ColorId color_id) const {
	// This implementation returns hardcoded colors.
	switch (color_id) {

	// Dialogs
	case kColorId_DialogBackground:
	return kDialogBackgroundColor;

	// FocusableBorder
	case kColorId_FocusedBorderColor:
	return kFocusedBorderColor;
	case kColorId_UnfocusedBorderColor:
	return kUnfocusedBorderColor;

	// TextButton
	case kColorId_TextButtonBackgroundColor:
	return kTextButtonBackgroundColor;
	case kColorId_TextButtonEnabledColor:
	return kTextButtonEnabledColor;
	case kColorId_TextButtonDisabledColor:
	return kTextButtonDisabledColor;
	case kColorId_TextButtonHighlightColor:
	return kTextButtonHighlightColor;
	case kColorId_TextButtonHoverColor:
	return kTextButtonHoverColor;

	// MenuItem
	case kColorId_EnabledMenuItemForegroundColor:
	return kEnabledMenuItemForegroundColor;
	case kColorId_DisabledMenuItemForegroundColor:
	return kDisabledMenuItemForegroundColor;
	case kColorId_FocusedMenuItemBackgroundColor:
	return kFocusedMenuItemBackgroundColor;

	// Textfield
	case kColorId_TextfieldDefaultColor:
	return kTextfieldDefaultColor;
	case kColorId_TextfieldDefaultBackground:
	return kTextfieldDefaultBackground;
	case kColorId_TextfieldSelectionColor:
	return kTextfieldSelectionColor;
	case kColorId_TextfieldSelectionBackgroundFocused:
	return kTextfieldSelectionBackgroundFocused;
	case kColorId_TextfieldSelectionBackgroundUnfocused:
	return kTextfieldSelectionBackgroundUnfocused;

	default:
	NOTREACHED() << "Invalid color_id: " << color_id;
	break;
	}

	return kInvalidColorIdColor;
	}

	void NativeThemeAura::PaintMenuPopupBackground(SkCanvas* canvas,
	const gfx::Size& size) const {
	canvas->drawColor(kMenuBackgroundColor, SkXfermode::kSrc_Mode);
	}

	void NativeThemeAura::PaintScrollbarTrack(
	SkCanvas* canvas,
	Part part,
	State state,
	const ScrollbarTrackExtraParams& extra_params,
	const gfx::Rect& rect) const {
	ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
	if (part == kScrollbarVerticalTrack) {
	int center_offset = 0;
	int center_height = rect.height();

	if (rect.y() == extra_params.track_y) {
	// TODO(derat): Honor \|state\| instead of only using the highlighted images
	// after updating WebKit so we can draw the entire track in one go instead
	// of as two separate pieces: otherwise, only the portion of the scrollbar
	// that the mouse is over gets the highlighted state.
	SkBitmap* top = rb.GetBitmapNamed(IDR_SCROLL_BASE_VERTICAL_TOP_H);
	DrawTiledImage(canvas, *top,
	0, 0, 1.0, 1.0,
	rect.x(), rect.y(), top->width(), top->height());
	center_offset += top->height();
	center_height -= top->height();
	}

	if (rect.y() + rect.height() ==
	extra_params.track_y + extra_params.track_height) {
	SkBitmap* bottom = rb.GetBitmapNamed(IDR_SCROLL_BASE_VERTICAL_BOTTOM_H);
	DrawTiledImage(canvas, *bottom,
	0, 0, 1.0, 1.0,
	rect.x(), rect.y() + rect.height() - bottom->height(),
	bottom->width(), bottom->height());
	center_height -= bottom->height();
	}

	if (center_height > 0) {
	SkBitmap* center = rb.GetBitmapNamed(IDR_SCROLL_BASE_VERTICAL_CENTER_H);
	DrawTiledImage(canvas, *center,
	0, 0, 1.0, 1.0,
	rect.x(), rect.y() + center_offset,
	center->width(), center_height);
	}
	} else {
	int center_offset = 0;
	int center_width = rect.width();

	if (rect.x() == extra_params.track_x) {
	SkBitmap* left = rb.GetBitmapNamed(IDR_SCROLL_BASE_HORIZONTAL_LEFT_H);
	DrawTiledImage(canvas, *left,
	0, 0, 1.0, 1.0,
	rect.x(), rect.y(), left->width(), left->height());
	center_offset += left->width();
	center_width -= left->width();
	}

	if (rect.x() + rect.width() ==
	extra_params.track_x + extra_params.track_width) {
	SkBitmap* right = rb.GetBitmapNamed(IDR_SCROLL_BASE_HORIZONTAL_RIGHT_H);
	DrawTiledImage(canvas, *right,
	0, 0, 1.0, 1.0,
	rect.x() + rect.width() - right->width(), rect.y(),
	right->width(), right->height());
	center_width -= right->width();
	}

	if (center_width > 0) {
	SkBitmap* center = rb.GetBitmapNamed(IDR_SCROLL_BASE_HORIZONTAL_CENTER_H);
	DrawTiledImage(canvas, *center,
	0, 0, 1.0, 1.0,
	rect.x() + center_offset, rect.y(),
	center_width, center->height());
	}
	}
	}

	void NativeThemeAura::PaintArrowButton(SkCanvas* canvas,
	const gfx::Rect& rect,
	Part part,
	State state) const {
	DCHECK(rect.IsEmpty());
	}

	void NativeThemeAura::PaintScrollbarThumb(SkCanvas* canvas,
	Part part,
	State state,
	const gfx::Rect& rect) const {
	ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
	if (part == kScrollbarVerticalThumb) {
	int top_resource_id =
	state == kHovered ? IDR_SCROLL_THUMB_VERTICAL_TOP_H :
	state == kPressed ? IDR_SCROLL_THUMB_VERTICAL_TOP_P :
	IDR_SCROLL_THUMB_VERTICAL_TOP;
	SkBitmap* top = rb.GetBitmapNamed(top_resource_id);
	DrawTiledImage(canvas, *top,
	0, 0, 1.0, 1.0,
	rect.x(), rect.y(), top->width(), top->height());

	int bottom_resource_id =
	state == kHovered ? IDR_SCROLL_THUMB_VERTICAL_BOTTOM_H :
	state == kPressed ? IDR_SCROLL_THUMB_VERTICAL_BOTTOM_P :
	IDR_SCROLL_THUMB_VERTICAL_BOTTOM;
	SkBitmap* bottom = rb.GetBitmapNamed(bottom_resource_id);
	DrawTiledImage(canvas, *bottom,
	0, 0, 1.0, 1.0,
	rect.x(), rect.y() + rect.height() - bottom->height(),
	bottom->width(), bottom->height());

	if (rect.height() > top->height() + bottom->height()) {
	int center_resource_id =
	state == kHovered ? IDR_SCROLL_THUMB_VERTICAL_CENTER_H :
	state == kPressed ? IDR_SCROLL_THUMB_VERTICAL_CENTER_P :
	IDR_SCROLL_THUMB_VERTICAL_CENTER;
	SkBitmap* center = rb.GetBitmapNamed(center_resource_id);
	DrawTiledImage(canvas, *center,
	0, 0, 1.0, 1.0,
	rect.x(), rect.y() + top->height(),
	center->width(),
	rect.height() - top->height() - bottom->height());
	}
	} else {
	int left_resource_id =
	state == kHovered ? IDR_SCROLL_THUMB_HORIZONTAL_LEFT_H :
	state == kPressed ? IDR_SCROLL_THUMB_HORIZONTAL_LEFT_P :
	IDR_SCROLL_THUMB_HORIZONTAL_LEFT;
	SkBitmap* left = rb.GetBitmapNamed(left_resource_id);
	DrawTiledImage(canvas, *left,
	0, 0, 1.0, 1.0,
	rect.x(), rect.y(), left->width(), left->height());

	int right_resource_id =
	state == kHovered ? IDR_SCROLL_THUMB_HORIZONTAL_RIGHT_H :
	state == kPressed ? IDR_SCROLL_THUMB_HORIZONTAL_RIGHT_P :
	IDR_SCROLL_THUMB_HORIZONTAL_RIGHT;
	SkBitmap* right = rb.GetBitmapNamed(right_resource_id);
	DrawTiledImage(canvas, *right,
	0, 0, 1.0, 1.0,
	rect.x() + rect.width() - right->width(), rect.y(),
	right->width(), right->height());

	if (rect.width() > left->width() + right->width()) {
	int center_resource_id =
	state == kHovered ? IDR_SCROLL_THUMB_HORIZONTAL_CENTER_H :
	state == kPressed ? IDR_SCROLL_THUMB_HORIZONTAL_CENTER_P :
	IDR_SCROLL_THUMB_HORIZONTAL_CENTER;
	SkBitmap* center = rb.GetBitmapNamed(center_resource_id);
	DrawTiledImage(canvas, *center,
	0, 0, 1.0, 1.0,
	rect.x() + left->width(), rect.y(),
	rect.width() - left->width() - right->width(),
	center->height());
	}
	}
	}

	} // namespace gfx