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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/native_theme/native_theme_aura.h" | 5 #include "ui/native_theme/native_theme_aura.h" |
6 | 6 |
7 #include <limits> | 7 #include <limits> |
8 #include <utility> | 8 #include <utility> |
9 | 9 |
10 #include "base/logging.h" | 10 #include "base/logging.h" |
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179 cc::PaintFlags flags; | 179 cc::PaintFlags flags; |
180 flags.setColor(kTrackColor); | 180 flags.setColor(kTrackColor); |
181 canvas->drawIRect(gfx::RectToSkIRect(rect), flags); | 181 canvas->drawIRect(gfx::RectToSkIRect(rect), flags); |
182 } | 182 } |
183 | 183 |
184 void NativeThemeAura::PaintScrollbarThumb( | 184 void NativeThemeAura::PaintScrollbarThumb( |
185 cc::PaintCanvas* canvas, | 185 cc::PaintCanvas* canvas, |
186 Part part, | 186 Part part, |
187 State state, | 187 State state, |
188 const gfx::Rect& rect, | 188 const gfx::Rect& rect, |
189 ScrollbarOverlayColorTheme theme) const { | 189 const NativeTheme::ScrollbarThumbExtraParams& params) const { |
190 // Do not paint if state is disabled. | 190 // Do not paint if state is disabled. |
191 if (state == kDisabled) | 191 if (state == kDisabled) |
192 return; | 192 return; |
193 | 193 |
194 TRACE_EVENT0("blink", "NativeThemeAura::PaintScrollbarThumb"); | 194 TRACE_EVENT0("blink", "NativeThemeAura::PaintScrollbarThumb"); |
195 | 195 |
196 SkAlpha thumb_alpha = SK_AlphaTRANSPARENT; | 196 SkAlpha thumb_alpha = SK_AlphaTRANSPARENT; |
197 gfx::Rect thumb_rect(rect); | 197 gfx::Rect thumb_rect(rect); |
198 SkColor thumb_color; | 198 SkColor thumb_color; |
199 | 199 |
200 if (use_overlay_scrollbars_) { | 200 if (use_overlay_scrollbars_) { |
201 // Constants used for painting overlay scrollbar thumb. | 201 // Constants used for painting overlay scrollbar thumb. |
202 constexpr SkAlpha kOverlayScrollbarFillAlphaNormal = 0x4D; | 202 constexpr SkAlpha kOverlayScrollbarFillAlphaNormal = 0x4D; |
203 constexpr SkAlpha kOverlayScrollbarFillAlphaHovered = 0x80; | 203 constexpr SkAlpha kOverlayScrollbarFillAlphaHovered = 0x80; |
204 constexpr SkAlpha kOverlayScrollbarFillAlphaPressed = 0x80; | 204 constexpr SkAlpha kOverlayScrollbarFillAlphaPressed = 0x80; |
205 constexpr SkAlpha kOverlayScrollbarStrokeAlphaNormal = 0x4D; | 205 constexpr SkAlpha kOverlayScrollbarStrokeAlphaNormal = 0x4D; |
206 constexpr SkAlpha kOverlayScrollbarStrokeAlphaHovered = 0x58; | 206 constexpr SkAlpha kOverlayScrollbarStrokeAlphaHovered = 0x58; |
207 constexpr SkAlpha kOverlayScrollbarStrokeAlphaPressed = 0x80; | 207 constexpr SkAlpha kOverlayScrollbarStrokeAlphaPressed = 0x80; |
208 | 208 |
209 // Indexed by ScrollbarOverlayColorTheme. | 209 // Indexed by ScrollbarOverlayColorTheme. |
210 constexpr SkColor kOverlayScrollbarThumbColor[] = {SK_ColorBLACK, | 210 constexpr SkColor kOverlayScrollbarThumbColor[] = {SK_ColorBLACK, |
211 SK_ColorWHITE}; | 211 SK_ColorWHITE}; |
212 constexpr SkColor kOverlayScrollbarStrokeColor[] = {SK_ColorWHITE, | 212 constexpr SkColor kOverlayScrollbarStrokeColor[] = {SK_ColorWHITE, |
213 SK_ColorBLACK}; | 213 SK_ColorBLACK}; |
214 | 214 |
215 thumb_color = kOverlayScrollbarThumbColor[theme]; | 215 thumb_color = kOverlayScrollbarThumbColor[params.scrollbar_theme]; |
216 | 216 |
217 SkAlpha stroke_alpha = SK_AlphaTRANSPARENT; | 217 SkAlpha stroke_alpha = SK_AlphaTRANSPARENT; |
218 switch (state) { | 218 switch (state) { |
219 case NativeTheme::kDisabled: | 219 case NativeTheme::kDisabled: |
220 thumb_alpha = SK_AlphaTRANSPARENT; | 220 thumb_alpha = SK_AlphaTRANSPARENT; |
221 stroke_alpha = SK_AlphaTRANSPARENT; | 221 stroke_alpha = SK_AlphaTRANSPARENT; |
222 break; | 222 break; |
223 case NativeTheme::kHovered: | 223 case NativeTheme::kHovered: |
224 thumb_alpha = kOverlayScrollbarFillAlphaHovered; | 224 thumb_alpha = kOverlayScrollbarFillAlphaHovered; |
225 stroke_alpha = kOverlayScrollbarStrokeAlphaHovered; | 225 stroke_alpha = kOverlayScrollbarStrokeAlphaHovered; |
226 break; | 226 break; |
227 case NativeTheme::kNormal: | 227 case NativeTheme::kNormal: |
228 thumb_alpha = kOverlayScrollbarFillAlphaNormal; | 228 thumb_alpha = kOverlayScrollbarFillAlphaNormal; |
229 stroke_alpha = kOverlayScrollbarStrokeAlphaNormal; | 229 stroke_alpha = kOverlayScrollbarStrokeAlphaNormal; |
230 break; | 230 break; |
231 case NativeTheme::kPressed: | 231 case NativeTheme::kPressed: |
232 thumb_alpha = kOverlayScrollbarFillAlphaPressed; | 232 thumb_alpha = kOverlayScrollbarFillAlphaPressed; |
233 stroke_alpha = kOverlayScrollbarStrokeAlphaPressed; | 233 stroke_alpha = kOverlayScrollbarStrokeAlphaPressed; |
234 break; | 234 break; |
235 case NativeTheme::kNumStates: | 235 case NativeTheme::kNumStates: |
236 NOTREACHED(); | 236 NOTREACHED(); |
237 break; | 237 break; |
238 } | 238 } |
239 | 239 |
240 // In overlay mode, draw a stroke (border). | 240 // In overlay mode, draw a stroke (border). |
241 constexpr int kStrokeWidth = kOverlayScrollbarStrokeWidth; | 241 constexpr int kStrokeWidth = kOverlayScrollbarStrokeWidth; |
242 cc::PaintFlags flags; | 242 cc::PaintFlags flags; |
243 flags.setColor( | 243 flags.setColor(SkColorSetA( |
244 SkColorSetA(kOverlayScrollbarStrokeColor[theme], stroke_alpha)); | 244 kOverlayScrollbarStrokeColor[params.scrollbar_theme], stroke_alpha)); |
245 flags.setStyle(cc::PaintFlags::kStroke_Style); | 245 flags.setStyle(cc::PaintFlags::kStroke_Style); |
246 flags.setStrokeWidth(kStrokeWidth); | 246 flags.setStrokeWidth(kStrokeWidth); |
247 | 247 |
248 gfx::RectF stroke_rect(thumb_rect); | 248 gfx::RectF stroke_rect(thumb_rect); |
249 constexpr float kHalfStrokeWidth = kStrokeWidth / 2.f; | 249 constexpr float kHalfStrokeWidth = kStrokeWidth / 2.f; |
250 stroke_rect.Inset(kHalfStrokeWidth, kHalfStrokeWidth); | 250 stroke_rect.Inset(kHalfStrokeWidth, kHalfStrokeWidth); |
251 canvas->drawRect(gfx::RectFToSkRect(stroke_rect), flags); | 251 canvas->drawRect(gfx::RectFToSkRect(stroke_rect), flags); |
252 | 252 |
253 // Inset the all the edges edges so we fill-in the stroke below. | 253 // The edge to which the scrollbar is attached shouldn't have a border. |
bokan
2017/03/24 18:06:12
Please keep the comment this is currently replacin
| |
254 thumb_rect.Inset(kStrokeWidth, kStrokeWidth); | 254 if (part == NativeTheme::kScrollbarVerticalThumb) { |
255 if (params.isLeftVerticalScrollbar) | |
256 thumb_rect.Inset(0, kStrokeWidth, kStrokeWidth, kStrokeWidth); | |
257 else | |
258 thumb_rect.Inset(kStrokeWidth, kStrokeWidth, 0, kStrokeWidth); | |
259 } else { | |
260 thumb_rect.Inset(kStrokeWidth, kStrokeWidth, kStrokeWidth, 0); | |
261 } | |
255 } else { | 262 } else { |
256 switch (state) { | 263 switch (state) { |
257 case NativeTheme::kDisabled: | 264 case NativeTheme::kDisabled: |
258 thumb_alpha = SK_AlphaTRANSPARENT; | 265 thumb_alpha = SK_AlphaTRANSPARENT; |
259 break; | 266 break; |
260 case NativeTheme::kHovered: | 267 case NativeTheme::kHovered: |
261 thumb_alpha = 0x4D; | 268 thumb_alpha = 0x4D; |
262 break; | 269 break; |
263 case NativeTheme::kNormal: | 270 case NativeTheme::kNormal: |
264 thumb_alpha = 0x33; | 271 thumb_alpha = 0x33; |
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340 | 347 |
341 gfx::Rect NativeThemeAura::GetNinePatchAperture(Part part) const { | 348 gfx::Rect NativeThemeAura::GetNinePatchAperture(Part part) const { |
342 DCHECK(SupportsNinePatch(part)); | 349 DCHECK(SupportsNinePatch(part)); |
343 | 350 |
344 return gfx::Rect( | 351 return gfx::Rect( |
345 kOverlayScrollbarBorderPatchWidth, kOverlayScrollbarBorderPatchWidth, | 352 kOverlayScrollbarBorderPatchWidth, kOverlayScrollbarBorderPatchWidth, |
346 kOverlayScrollbarCenterPatchSize, kOverlayScrollbarCenterPatchSize); | 353 kOverlayScrollbarCenterPatchSize, kOverlayScrollbarCenterPatchSize); |
347 } | 354 } |
348 | 355 |
349 } // namespace ui | 356 } // namespace ui |
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