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 "content/child/webthemeengine_impl_android.h"
6
7#include "base/logging.h"
8#include "skia/ext/platform_canvas.h"
9#include "third_party/WebKit/public/platform/WebRect.h"
10#include "third_party/WebKit/public/platform/WebSize.h"
11#include "ui/native_theme/native_theme.h"
12
13using blink::WebCanvas;
14using blink::WebColor;
15using blink::WebRect;
16using blink::WebThemeEngine;
17
18namespace content {
19
20static ui::NativeTheme::Part NativeThemePart(
21    WebThemeEngine::Part part) {
22  switch (part) {
23    case WebThemeEngine::PartScrollbarDownArrow:
24      return ui::NativeTheme::kScrollbarDownArrow;
25    case WebThemeEngine::PartScrollbarLeftArrow:
26      return ui::NativeTheme::kScrollbarLeftArrow;
27    case WebThemeEngine::PartScrollbarRightArrow:
28      return ui::NativeTheme::kScrollbarRightArrow;
29    case WebThemeEngine::PartScrollbarUpArrow:
30      return ui::NativeTheme::kScrollbarUpArrow;
31    case WebThemeEngine::PartScrollbarHorizontalThumb:
32    case WebThemeEngine::PartScrollbarVerticalThumb:
33    case WebThemeEngine::PartScrollbarHorizontalTrack:
34    case WebThemeEngine::PartScrollbarVerticalTrack:
35    case WebThemeEngine::PartScrollbarCorner:
36      // Android doesn't draw scrollbars.
37      NOTREACHED();
38      return static_cast<ui::NativeTheme::Part>(0);
39    case WebThemeEngine::PartCheckbox:
40      return ui::NativeTheme::kCheckbox;
41    case WebThemeEngine::PartRadio:
42      return ui::NativeTheme::kRadio;
43    case WebThemeEngine::PartButton:
44      return ui::NativeTheme::kPushButton;
45    case WebThemeEngine::PartTextField:
46      return ui::NativeTheme::kTextField;
47    case WebThemeEngine::PartMenuList:
48      return ui::NativeTheme::kMenuList;
49    case WebThemeEngine::PartSliderTrack:
50      return ui::NativeTheme::kSliderTrack;
51    case WebThemeEngine::PartSliderThumb:
52      return ui::NativeTheme::kSliderThumb;
53    case WebThemeEngine::PartInnerSpinButton:
54      return ui::NativeTheme::kInnerSpinButton;
55    case WebThemeEngine::PartProgressBar:
56      return ui::NativeTheme::kProgressBar;
57    default:
58      return ui::NativeTheme::kScrollbarDownArrow;
59  }
60}
61
62static ui::NativeTheme::State NativeThemeState(
63    WebThemeEngine::State state) {
64  switch (state) {
65    case WebThemeEngine::StateDisabled:
66      return ui::NativeTheme::kDisabled;
67    case WebThemeEngine::StateHover:
68      return ui::NativeTheme::kHovered;
69    case WebThemeEngine::StateNormal:
70      return ui::NativeTheme::kNormal;
71    case WebThemeEngine::StatePressed:
72      return ui::NativeTheme::kPressed;
73    default:
74      return ui::NativeTheme::kDisabled;
75  }
76}
77
78static void GetNativeThemeExtraParams(
79    WebThemeEngine::Part part,
80    WebThemeEngine::State state,
81    const WebThemeEngine::ExtraParams* extra_params,
82    ui::NativeTheme::ExtraParams* native_theme_extra_params) {
83  switch (part) {
84    case WebThemeEngine::PartScrollbarHorizontalTrack:
85    case WebThemeEngine::PartScrollbarVerticalTrack:
86      // Android doesn't draw scrollbars.
87      NOTREACHED();
88      break;
89    case WebThemeEngine::PartCheckbox:
90      native_theme_extra_params->button.checked = extra_params->button.checked;
91      native_theme_extra_params->button.indeterminate =
92          extra_params->button.indeterminate;
93      break;
94    case WebThemeEngine::PartRadio:
95      native_theme_extra_params->button.checked = extra_params->button.checked;
96      break;
97    case WebThemeEngine::PartButton:
98      native_theme_extra_params->button.is_default =
99          extra_params->button.isDefault;
100      native_theme_extra_params->button.has_border =
101          extra_params->button.hasBorder;
102      // Native buttons have a different focus style.
103      native_theme_extra_params->button.is_focused = false;
104      native_theme_extra_params->button.background_color =
105          extra_params->button.backgroundColor;
106      break;
107    case WebThemeEngine::PartTextField:
108      native_theme_extra_params->text_field.is_text_area =
109          extra_params->textField.isTextArea;
110      native_theme_extra_params->text_field.is_listbox =
111          extra_params->textField.isListbox;
112      native_theme_extra_params->text_field.background_color =
113          extra_params->textField.backgroundColor;
114      break;
115    case WebThemeEngine::PartMenuList:
116      native_theme_extra_params->menu_list.has_border =
117          extra_params->menuList.hasBorder;
118      native_theme_extra_params->menu_list.has_border_radius =
119          extra_params->menuList.hasBorderRadius;
120      native_theme_extra_params->menu_list.arrow_x =
121          extra_params->menuList.arrowX;
122      native_theme_extra_params->menu_list.arrow_y =
123          extra_params->menuList.arrowY;
124      native_theme_extra_params->menu_list.background_color =
125          extra_params->menuList.backgroundColor;
126      break;
127    case WebThemeEngine::PartSliderTrack:
128    case WebThemeEngine::PartSliderThumb:
129      native_theme_extra_params->slider.vertical =
130          extra_params->slider.vertical;
131      native_theme_extra_params->slider.in_drag = extra_params->slider.inDrag;
132      break;
133    case WebThemeEngine::PartInnerSpinButton:
134      native_theme_extra_params->inner_spin.spin_up =
135          extra_params->innerSpin.spinUp;
136      native_theme_extra_params->inner_spin.read_only =
137          extra_params->innerSpin.readOnly;
138      break;
139    case WebThemeEngine::PartProgressBar:
140      native_theme_extra_params->progress_bar.determinate =
141          extra_params->progressBar.determinate;
142      native_theme_extra_params->progress_bar.value_rect_x =
143          extra_params->progressBar.valueRectX;
144      native_theme_extra_params->progress_bar.value_rect_y =
145          extra_params->progressBar.valueRectY;
146      native_theme_extra_params->progress_bar.value_rect_width =
147          extra_params->progressBar.valueRectWidth;
148      native_theme_extra_params->progress_bar.value_rect_height =
149          extra_params->progressBar.valueRectHeight;
150      break;
151    default:
152      break;  // Parts that have no extra params get here.
153  }
154}
155
156blink::WebSize WebThemeEngineImpl::getSize(WebThemeEngine::Part part) {
157  ui::NativeTheme::ExtraParams extra;
158  return ui::NativeTheme::instance()->GetPartSize(
159      NativeThemePart(part), ui::NativeTheme::kNormal, extra);
160}
161
162void WebThemeEngineImpl::paint(
163    blink::WebCanvas* canvas,
164    WebThemeEngine::Part part,
165    WebThemeEngine::State state,
166    const blink::WebRect& rect,
167    const WebThemeEngine::ExtraParams* extra_params) {
168  ui::NativeTheme::ExtraParams native_theme_extra_params;
169  GetNativeThemeExtraParams(
170      part, state, extra_params, &native_theme_extra_params);
171  ui::NativeTheme::instance()->Paint(
172      canvas,
173      NativeThemePart(part),
174      NativeThemeState(state),
175      gfx::Rect(rect),
176      native_theme_extra_params);
177}
178}  // namespace content
179