1// Copyright 2014 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/native_theme/native_theme_aurawin.h"
6
7#include "third_party/skia/include/core/SkCanvas.h"
8#include "ui/native_theme/common_theme.h"
9#include "ui/native_theme/native_theme_win.h"
10
11namespace ui {
12
13namespace {
14
15bool IsScrollbarPart(NativeTheme::Part part) {
16  switch (part) {
17    case NativeTheme::kScrollbarDownArrow:
18    case NativeTheme::kScrollbarLeftArrow:
19    case NativeTheme::kScrollbarRightArrow:
20    case NativeTheme::kScrollbarUpArrow:
21    case NativeTheme::kScrollbarHorizontalThumb:
22    case NativeTheme::kScrollbarVerticalThumb:
23    case NativeTheme::kScrollbarHorizontalTrack:
24    case NativeTheme::kScrollbarVerticalTrack:
25    case NativeTheme::kScrollbarHorizontalGripper:
26    case NativeTheme::kScrollbarVerticalGripper:
27    case NativeTheme::kScrollbarCorner:
28      return true;
29  }
30  return false;
31}
32
33}  // namespace
34
35// static
36NativeTheme* NativeTheme::instance() {
37  return NativeThemeAuraWin::instance();
38}
39
40// static
41NativeThemeAura* NativeThemeAura::instance() {
42  return NativeThemeAuraWin::instance();
43}
44
45// static
46NativeThemeAuraWin* NativeThemeAuraWin::instance() {
47  CR_DEFINE_STATIC_LOCAL(NativeThemeAuraWin, s_native_theme, ());
48  return &s_native_theme;
49}
50
51NativeThemeAuraWin::NativeThemeAuraWin() {
52}
53
54NativeThemeAuraWin::~NativeThemeAuraWin() {
55}
56
57void NativeThemeAuraWin::Paint(SkCanvas* canvas,
58                               Part part,
59                               State state,
60                               const gfx::Rect& rect,
61                               const ExtraParams& extra) const {
62  if (IsScrollbarPart(part) &&
63      NativeThemeWin::instance()->IsUsingHighContrastTheme()) {
64    NativeThemeWin::instance()->Paint(canvas, part, state, rect, extra);
65    return;
66  }
67
68  NativeThemeAura::Paint(canvas, part, state, rect, extra);
69}
70
71gfx::Size NativeThemeAuraWin::GetPartSize(Part part,
72                                          State state,
73                                          const ExtraParams& extra) const {
74  gfx::Size part_size = CommonThemeGetPartSize(part, state, extra);
75  if (!part_size.IsEmpty())
76    return part_size;
77
78  // We want aura on windows to use the same size for scrollbars as we would in
79  // the native theme.
80  if (IsScrollbarPart(part))
81    return NativeThemeWin::instance()->GetPartSize(part, state, extra);
82
83  return NativeThemeAura::GetPartSize(part, state, extra);
84}
85
86}  // namespace ui
87