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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/webfallbackthemeengine_impl.h"
6 
7 #include "skia/ext/platform_canvas.h"
8 #include "third_party/WebKit/public/platform/WebRect.h"
9 #include "third_party/WebKit/public/platform/WebSize.h"
10 #include "ui/native_theme/fallback_theme.h"
11 
12 using blink::WebCanvas;
13 using blink::WebColor;
14 using blink::WebRect;
15 using blink::WebFallbackThemeEngine;
16 
17 namespace content {
18 
NativeThemePart(WebFallbackThemeEngine::Part part)19 static ui::NativeTheme::Part NativeThemePart(
20     WebFallbackThemeEngine::Part part) {
21   switch (part) {
22     case WebFallbackThemeEngine::PartScrollbarDownArrow:
23       return ui::NativeTheme::kScrollbarDownArrow;
24     case WebFallbackThemeEngine::PartScrollbarLeftArrow:
25       return ui::NativeTheme::kScrollbarLeftArrow;
26     case WebFallbackThemeEngine::PartScrollbarRightArrow:
27       return ui::NativeTheme::kScrollbarRightArrow;
28     case WebFallbackThemeEngine::PartScrollbarUpArrow:
29       return ui::NativeTheme::kScrollbarUpArrow;
30     case WebFallbackThemeEngine::PartScrollbarHorizontalThumb:
31       return ui::NativeTheme::kScrollbarHorizontalThumb;
32     case WebFallbackThemeEngine::PartScrollbarVerticalThumb:
33       return ui::NativeTheme::kScrollbarVerticalThumb;
34     case WebFallbackThemeEngine::PartScrollbarHorizontalTrack:
35       return ui::NativeTheme::kScrollbarHorizontalTrack;
36     case WebFallbackThemeEngine::PartScrollbarVerticalTrack:
37       return ui::NativeTheme::kScrollbarVerticalTrack;
38     case WebFallbackThemeEngine::PartScrollbarCorner:
39       return ui::NativeTheme::kScrollbarCorner;
40     case WebFallbackThemeEngine::PartCheckbox:
41       return ui::NativeTheme::kCheckbox;
42     case WebFallbackThemeEngine::PartRadio:
43       return ui::NativeTheme::kRadio;
44     case WebFallbackThemeEngine::PartButton:
45       return ui::NativeTheme::kPushButton;
46     case WebFallbackThemeEngine::PartTextField:
47       return ui::NativeTheme::kTextField;
48     case WebFallbackThemeEngine::PartMenuList:
49       return ui::NativeTheme::kMenuList;
50     case WebFallbackThemeEngine::PartSliderTrack:
51       return ui::NativeTheme::kSliderTrack;
52     case WebFallbackThemeEngine::PartSliderThumb:
53       return ui::NativeTheme::kSliderThumb;
54     case WebFallbackThemeEngine::PartInnerSpinButton:
55       return ui::NativeTheme::kInnerSpinButton;
56     case WebFallbackThemeEngine::PartProgressBar:
57       return ui::NativeTheme::kProgressBar;
58     default:
59       return ui::NativeTheme::kScrollbarDownArrow;
60   }
61 }
62 
NativeThemeState(WebFallbackThemeEngine::State state)63 static ui::NativeTheme::State NativeThemeState(
64     WebFallbackThemeEngine::State state) {
65   switch (state) {
66     case WebFallbackThemeEngine::StateDisabled:
67       return ui::NativeTheme::kDisabled;
68     case WebFallbackThemeEngine::StateHover:
69       return ui::NativeTheme::kHovered;
70     case WebFallbackThemeEngine::StateNormal:
71       return ui::NativeTheme::kNormal;
72     case WebFallbackThemeEngine::StatePressed:
73       return ui::NativeTheme::kPressed;
74     default:
75       return ui::NativeTheme::kDisabled;
76   }
77 }
78 
GetNativeThemeExtraParams(WebFallbackThemeEngine::Part part,WebFallbackThemeEngine::State state,const WebFallbackThemeEngine::ExtraParams * extra_params,ui::NativeTheme::ExtraParams * native_theme_extra_params)79 static void GetNativeThemeExtraParams(
80     WebFallbackThemeEngine::Part part,
81     WebFallbackThemeEngine::State state,
82     const WebFallbackThemeEngine::ExtraParams* extra_params,
83     ui::NativeTheme::ExtraParams* native_theme_extra_params) {
84   switch (part) {
85     case WebFallbackThemeEngine::PartScrollbarHorizontalTrack:
86     case WebFallbackThemeEngine::PartScrollbarVerticalTrack:
87       native_theme_extra_params->scrollbar_track.track_x =
88           extra_params->scrollbarTrack.trackX;
89       native_theme_extra_params->scrollbar_track.track_y =
90           extra_params->scrollbarTrack.trackY;
91       native_theme_extra_params->scrollbar_track.track_width =
92           extra_params->scrollbarTrack.trackWidth;
93       native_theme_extra_params->scrollbar_track.track_height =
94           extra_params->scrollbarTrack.trackHeight;
95       break;
96     case WebFallbackThemeEngine::PartCheckbox:
97       native_theme_extra_params->button.checked = extra_params->button.checked;
98       native_theme_extra_params->button.indeterminate =
99           extra_params->button.indeterminate;
100       break;
101     case WebFallbackThemeEngine::PartRadio:
102       native_theme_extra_params->button.checked = extra_params->button.checked;
103       break;
104     case WebFallbackThemeEngine::PartButton:
105       native_theme_extra_params->button.is_default =
106           extra_params->button.isDefault;
107       native_theme_extra_params->button.has_border =
108           extra_params->button.hasBorder;
109       // Native buttons have a different focus style.
110       native_theme_extra_params->button.is_focused = false;
111       native_theme_extra_params->button.background_color =
112           extra_params->button.backgroundColor;
113       break;
114     case WebFallbackThemeEngine::PartTextField:
115       native_theme_extra_params->text_field.is_text_area =
116           extra_params->textField.isTextArea;
117       native_theme_extra_params->text_field.is_listbox =
118           extra_params->textField.isListbox;
119       native_theme_extra_params->text_field.background_color =
120           extra_params->textField.backgroundColor;
121       break;
122     case WebFallbackThemeEngine::PartMenuList:
123       native_theme_extra_params->menu_list.has_border =
124           extra_params->menuList.hasBorder;
125       native_theme_extra_params->menu_list.has_border_radius =
126           extra_params->menuList.hasBorderRadius;
127       native_theme_extra_params->menu_list.arrow_x =
128           extra_params->menuList.arrowX;
129       native_theme_extra_params->menu_list.arrow_y =
130           extra_params->menuList.arrowY;
131       native_theme_extra_params->menu_list.background_color =
132           extra_params->menuList.backgroundColor;
133       break;
134     case WebFallbackThemeEngine::PartSliderTrack:
135     case WebFallbackThemeEngine::PartSliderThumb:
136       native_theme_extra_params->slider.vertical =
137           extra_params->slider.vertical;
138       native_theme_extra_params->slider.in_drag = extra_params->slider.inDrag;
139       break;
140     case WebFallbackThemeEngine::PartInnerSpinButton:
141       native_theme_extra_params->inner_spin.spin_up =
142           extra_params->innerSpin.spinUp;
143       native_theme_extra_params->inner_spin.read_only =
144           extra_params->innerSpin.readOnly;
145       break;
146     case WebFallbackThemeEngine::PartProgressBar:
147       native_theme_extra_params->progress_bar.determinate =
148           extra_params->progressBar.determinate;
149       native_theme_extra_params->progress_bar.value_rect_x =
150           extra_params->progressBar.valueRectX;
151       native_theme_extra_params->progress_bar.value_rect_y =
152           extra_params->progressBar.valueRectY;
153       native_theme_extra_params->progress_bar.value_rect_width =
154           extra_params->progressBar.valueRectWidth;
155       native_theme_extra_params->progress_bar.value_rect_height =
156           extra_params->progressBar.valueRectHeight;
157       break;
158     default:
159       break;  // Parts that have no extra params get here.
160   }
161 }
162 
WebFallbackThemeEngineImpl()163 WebFallbackThemeEngineImpl::WebFallbackThemeEngineImpl()
164     : theme_(new ui::FallbackTheme()) {
165 }
166 
~WebFallbackThemeEngineImpl()167 WebFallbackThemeEngineImpl::~WebFallbackThemeEngineImpl() {}
168 
getSize(WebFallbackThemeEngine::Part part)169 blink::WebSize WebFallbackThemeEngineImpl::getSize(
170     WebFallbackThemeEngine::Part part) {
171   ui::NativeTheme::ExtraParams extra;
172   return theme_->GetPartSize(NativeThemePart(part),
173                              ui::NativeTheme::kNormal,
174                              extra);
175 }
176 
paint(blink::WebCanvas * canvas,WebFallbackThemeEngine::Part part,WebFallbackThemeEngine::State state,const blink::WebRect & rect,const WebFallbackThemeEngine::ExtraParams * extra_params)177 void WebFallbackThemeEngineImpl::paint(
178     blink::WebCanvas* canvas,
179     WebFallbackThemeEngine::Part part,
180     WebFallbackThemeEngine::State state,
181     const blink::WebRect& rect,
182     const WebFallbackThemeEngine::ExtraParams* extra_params) {
183   ui::NativeTheme::ExtraParams native_theme_extra_params;
184   GetNativeThemeExtraParams(
185       part, state, extra_params, &native_theme_extra_params);
186   theme_->Paint(canvas,
187                 NativeThemePart(part),
188                 NativeThemeState(state),
189                 gfx::Rect(rect),
190                 native_theme_extra_params);
191 }
192 
193 }  // namespace content
194