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ui/native_theme/native_theme_aura.cc

Index: ui/native_theme/native_theme_aura.cc
diff --git a/ui/native_theme/native_theme_aura.cc b/ui/native_theme/native_theme_aura.cc
deleted file mode 100644
index 362ff99d0770ab25ed2c4bf519c3ea56c514acfb..0000000000000000000000000000000000000000
--- a/ui/native_theme/native_theme_aura.cc
+++ /dev/null
@@ -1,329 +0,0 @@
-// 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/native_theme/native_theme_aura.h"
-
-#include <limits>
-
-#include "base/logging.h"
-#include "ui/base/layout.h"
-#include "ui/base/nine_image_painter_factory.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/image/image_skia.h"
-#include "ui/gfx/nine_image_painter.h"
-#include "ui/gfx/path.h"
-#include "ui/gfx/rect.h"
-#include "ui/gfx/size.h"
-#include "ui/gfx/skbitmap_operations.h"
-#include "ui/gfx/skia_util.h"
-#include "ui/native_theme/common_theme.h"
-#include "ui/native_theme/native_theme_switches.h"
-#include "ui/resources/grit/ui_resources.h"
-
-using gfx::NineImagePainter;
-
-#define EMPTY_IMAGE_GRID { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
-
-namespace ui {
-
-namespace {
-
-const int kScrollbarThumbImages[NativeTheme::kNumStates][9] = {
-  EMPTY_IMAGE_GRID,
-  IMAGE_GRID(IDR_SCROLLBAR_THUMB_BASE_HOVER),
-  IMAGE_GRID(IDR_SCROLLBAR_THUMB_BASE_NORMAL),
-  IMAGE_GRID(IDR_SCROLLBAR_THUMB_BASE_PRESSED)
-};
-
-const int kScrollbarArrowButtonImages[NativeTheme::kNumStates][9] = {
-  EMPTY_IMAGE_GRID,
-  IMAGE_GRID(IDR_SCROLLBAR_ARROW_BUTTON_BASE_HOVER),
-  IMAGE_GRID(IDR_SCROLLBAR_ARROW_BUTTON_BASE_NORMAL),
-  IMAGE_GRID(IDR_SCROLLBAR_ARROW_BUTTON_BASE_PRESSED)
-};
-
-const uint8 kScrollbarOverlayThumbFillAlphas[NativeTheme::kNumStates] = {
-  0,    // Does not matter, will not paint for disabled state.
-  178,  // Hover state, opacity 70%, alpha would be 0.7 * 255.
-  140,  // Normal state, opacity 55%, alpha would be 0.55 * 255.
-  178   // Pressed state, opacity 70%, alpha would be 0.7 * 255.
-};
-
-const uint8 kScrollbarOverlayThumbStrokeAlphas[NativeTheme::kNumStates] = {
-  0,   // Does not matter, will not paint for disabled state.
-  51,  // Hover state, opacity 20%, alpha would be 0.2 * 255.
-  38,  // Normal state, opacity 15%, alpha would be 0.15 * 255.
-  51   // Pressed state, opacity 20%, alpha would be 0.2 * 255.
-};
-
-const int kScrollbarOverlayThumbStrokeImages[9] =
-    IMAGE_GRID_NO_CENTER(IDR_SCROLLBAR_OVERLAY_THUMB_STROKE);
-
-const int kScrollbarOverlayThumbFillImages[9] =
-    IMAGE_GRID(IDR_SCROLLBAR_OVERLAY_THUMB_FILL);
-
-const int kScrollbarTrackImages[9] = IMAGE_GRID(IDR_SCROLLBAR_BASE);
-
-}  // namespace
-
-#if !defined(OS_WIN)
-// static
-NativeTheme* NativeTheme::instance() {
-  return NativeThemeAura::instance();
-}
-
-// static
-NativeThemeAura* NativeThemeAura::instance() {
-  CR_DEFINE_STATIC_LOCAL(NativeThemeAura, s_native_theme, ());
-  return &s_native_theme;
-}
-#endif
-
-NativeThemeAura::NativeThemeAura() {
-  // We don't draw scrollbar buttons.
-#if defined(OS_CHROMEOS)
-  set_scrollbar_button_length(0);
-#endif
-
-  // Images and alphas declarations assume the following order.
-  COMPILE_ASSERT(kDisabled == 0, states_unexpectedly_changed);
-  COMPILE_ASSERT(kHovered == 1, states_unexpectedly_changed);
-  COMPILE_ASSERT(kNormal == 2, states_unexpectedly_changed);
-  COMPILE_ASSERT(kPressed == 3, states_unexpectedly_changed);
-}
-
-NativeThemeAura::~NativeThemeAura() {
-}
-
-void NativeThemeAura::PaintMenuPopupBackground(
-    SkCanvas* canvas,
-    const gfx::Size& size,
-    const MenuBackgroundExtraParams& menu_background) const {
-  SkColor color = GetSystemColor(NativeTheme::kColorId_MenuBackgroundColor);
-  if (menu_background.corner_radius > 0) {
-    SkPaint paint;
-    paint.setStyle(SkPaint::kFill_Style);
-    paint.setFlags(SkPaint::kAntiAlias_Flag);
-    paint.setColor(color);
-
-    gfx::Path path;
-    SkRect rect = SkRect::MakeWH(SkIntToScalar(size.width()),
-                                 SkIntToScalar(size.height()));
-    SkScalar radius = SkIntToScalar(menu_background.corner_radius);
-    SkScalar radii[8] = {radius, radius, radius, radius,
-                         radius, radius, radius, radius};
-    path.addRoundRect(rect, radii);
-
-    canvas->drawPath(path, paint);
-  } else {
-    canvas->drawColor(color, SkXfermode::kSrc_Mode);
-  }
-}
-
-void NativeThemeAura::PaintMenuItemBackground(
-    SkCanvas* canvas,
-    State state,
-    const gfx::Rect& rect,
-    const MenuListExtraParams& menu_list) const {
-  CommonThemePaintMenuItemBackground(canvas, state, rect);
-}
-
-void NativeThemeAura::PaintArrowButton(
-      SkCanvas* gc,
-      const gfx::Rect& rect,
-      Part direction,
-      State state) const {
-  if (direction == kInnerSpinButton) {
-    FallbackTheme::PaintArrowButton(gc, rect, direction, state);
-    return;
-  }
-  PaintPainter(GetOrCreatePainter(
-                   kScrollbarArrowButtonImages, state,
-                   scrollbar_arrow_button_painters_),
-               gc, rect);
-
-  // Aura-win uses slightly different arrow colors.
-  SkColor arrow_color = GetArrowColor(state);
-  switch (state) {
-    case kHovered:
-    case kNormal:
-      arrow_color = SkColorSetRGB(0x50, 0x50, 0x50);
-      break;
-    case kPressed:
-      arrow_color = SK_ColorWHITE;
-    default:
-      break;
-  }
-  PaintArrow(gc, rect, direction, arrow_color);
-}
-
-void NativeThemeAura::PaintScrollbarTrack(
-    SkCanvas* sk_canvas,
-    Part part,
-    State state,
-    const ScrollbarTrackExtraParams& extra_params,
-    const gfx::Rect& rect) const {
-  // Overlay Scrollbar should never paint a scrollbar track.
-  DCHECK(!IsOverlayScrollbarEnabled());
-  if (!scrollbar_track_painter_)
-    scrollbar_track_painter_ = CreateNineImagePainter(kScrollbarTrackImages);
-  PaintPainter(scrollbar_track_painter_.get(), sk_canvas, rect);
-}
-
-void NativeThemeAura::PaintScrollbarThumb(SkCanvas* sk_canvas,
-                                          Part part,
-                                          State state,
-                                          const gfx::Rect& rect) const {
-  gfx::Rect thumb_rect(rect);
-  if (IsOverlayScrollbarEnabled()) {
-    // Overlay scrollbar has no track, just paint thumb directly.
-    // Do not paint if state is disabled.
-    if (state == kDisabled)
-      return;
-
-    if (!scrollbar_overlay_thumb_painter_) {
-      scrollbar_overlay_thumb_painter_ =
-          CreateDualPainter(kScrollbarOverlayThumbFillImages,
-                            kScrollbarOverlayThumbFillAlphas,
-                            kScrollbarOverlayThumbStrokeImages,
-                            kScrollbarOverlayThumbStrokeAlphas);
-    }
-
-    PaintDualPainter(
-        scrollbar_overlay_thumb_painter_.get(), sk_canvas, thumb_rect, state);
-    return;
-  }
-  // If there are no scrollbuttons then provide some padding so that thumb
-  // doesn't touch the top of the track.
-  const int extra_padding = (scrollbar_button_length() == 0) ? 2 : 0;
-  if (part == NativeTheme::kScrollbarVerticalThumb)
-    thumb_rect.Inset(2, extra_padding, 2, extra_padding);
-  else
-    thumb_rect.Inset(extra_padding, 2, extra_padding, 2);
-  PaintPainter(GetOrCreatePainter(
-                   kScrollbarThumbImages, state, scrollbar_thumb_painters_),
-               sk_canvas,
-               thumb_rect);
-}
-
-void NativeThemeAura::PaintScrollbarThumbStateTransition(
-    SkCanvas* canvas,
-    State startState,
-    State endState,
-    double progress,
-    const gfx::Rect& rect) const {
-  // Only Overlay scrollbars should have state transition animation.
-  DCHECK(IsOverlayScrollbarEnabled());
-  if (!scrollbar_overlay_thumb_painter_) {
-    scrollbar_overlay_thumb_painter_ =
-        CreateDualPainter(kScrollbarOverlayThumbFillImages,
-                          kScrollbarOverlayThumbFillAlphas,
-                          kScrollbarOverlayThumbStrokeImages,
-                          kScrollbarOverlayThumbStrokeAlphas);
-  }
-
-  PaintDualPainterTransition(scrollbar_overlay_thumb_painter_.get(),
-                             canvas,
-                             rect,
-                             startState,
-                             endState,
-                             progress);
-}
-
-void NativeThemeAura::PaintScrollbarCorner(SkCanvas* canvas,
-                                           State state,
-                                           const gfx::Rect& rect) const {
-  // Overlay Scrollbar should never paint a scrollbar corner.
-  DCHECK(!IsOverlayScrollbarEnabled());
-  SkPaint paint;
-  paint.setColor(SkColorSetRGB(0xF1, 0xF1, 0xF1));
-  paint.setStyle(SkPaint::kFill_Style);
-  paint.setXfermodeMode(SkXfermode::kSrc_Mode);
-  canvas->drawIRect(RectToSkIRect(rect), paint);
-}
-
-NineImagePainter* NativeThemeAura::GetOrCreatePainter(
-    const int images[kNumStates][9],
-    State state,
-    scoped_ptr<NineImagePainter> painters[kNumStates]) const {
-  if (painters[state])
-    return painters[state].get();
-  if (images[state][0] == 0) {
-    // Must always provide normal state images.
-    DCHECK_NE(kNormal, state);
-    return GetOrCreatePainter(images, kNormal, painters);
-  }
-  painters[state] = CreateNineImagePainter(images[state]);
-  return painters[state].get();
-}
-
-void NativeThemeAura::PaintPainter(NineImagePainter* painter,
-                                   SkCanvas* sk_canvas,
-                                   const gfx::Rect& rect) const {
-  DCHECK(painter);
-  scoped_ptr<gfx::Canvas> canvas(CommonThemeCreateCanvas(sk_canvas));
-  painter->Paint(canvas.get(), rect);
-}
-
-scoped_ptr<NativeThemeAura::DualPainter> NativeThemeAura::CreateDualPainter(
-    const int fill_image_ids[9],
-    const uint8 fill_alphas[kNumStates],
-    const int stroke_image_ids[9],
-    const uint8 stroke_alphas[kNumStates]) const {
-  scoped_ptr<NativeThemeAura::DualPainter> dual_painter(
-      new NativeThemeAura::DualPainter(CreateNineImagePainter(fill_image_ids),
-                                       fill_alphas,
-                                       CreateNineImagePainter(stroke_image_ids),
-                                       stroke_alphas));
-  return dual_painter.Pass();
-}
-
-void NativeThemeAura::PaintDualPainter(
-    NativeThemeAura::DualPainter* dual_painter,
-    SkCanvas* sk_canvas,
-    const gfx::Rect& rect,
-    State state) const {
-  DCHECK(dual_painter);
-  scoped_ptr<gfx::Canvas> canvas(CommonThemeCreateCanvas(sk_canvas));
-  dual_painter->fill_painter->Paint(
-      canvas.get(), rect, dual_painter->fill_alphas[state]);
-  dual_painter->stroke_painter->Paint(
-      canvas.get(), rect, dual_painter->stroke_alphas[state]);
-}
-
-void NativeThemeAura::PaintDualPainterTransition(
-    NativeThemeAura::DualPainter* dual_painter,
-    SkCanvas* sk_canvas,
-    const gfx::Rect& rect,
-    State startState,
-    State endState,
-    double progress) const {
-  DCHECK(dual_painter);
-  scoped_ptr<gfx::Canvas> canvas(CommonThemeCreateCanvas(sk_canvas));
-  uint8 fill_alpha = dual_painter->fill_alphas[startState] +
-                     (dual_painter->fill_alphas[endState] -
-                      dual_painter->fill_alphas[startState]) *
-                         progress;
-  uint8 stroke_alpha = dual_painter->stroke_alphas[startState] +
-                       (dual_painter->stroke_alphas[endState] -
-                        dual_painter->stroke_alphas[startState]) *
-                           progress;
-
-  dual_painter->fill_painter->Paint(canvas.get(), rect, fill_alpha);
-  dual_painter->stroke_painter->Paint(canvas.get(), rect, stroke_alpha);
-}
-
-NativeThemeAura::DualPainter::DualPainter(
-    scoped_ptr<NineImagePainter> fill_painter,
-    const uint8 fill_alphas[kNumStates],
-    scoped_ptr<NineImagePainter> stroke_painter,
-    const uint8 stroke_alphas[kNumStates])
-    : fill_painter(fill_painter.Pass()),
-      fill_alphas(fill_alphas),
-      stroke_painter(stroke_painter.Pass()),
-      stroke_alphas(stroke_alphas) {}
-
-NativeThemeAura::DualPainter::~DualPainter() {}
-
-}  // namespace ui