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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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 "core/css/MediaValues.h" | 5 #include "core/css/MediaValues.h" |
| 6 | 6 |
| 7 #include "core/css/CSSHelper.h" | 7 #include "core/css/CSSHelper.h" |
| 8 #include "core/css/MediaValuesCached.h" | 8 #include "core/css/MediaValuesCached.h" |
| 9 #include "core/css/MediaValuesDynamic.h" | 9 #include "core/css/MediaValuesDynamic.h" |
| 10 #include "core/dom/Document.h" | 10 #include "core/dom/Document.h" |
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| 172 frame->GetPage()->GetChromeClient().GetScreenInfo()); | 172 frame->GetPage()->GetChromeClient().GetScreenInfo()); |
| 173 } | 173 } |
| 174 | 174 |
| 175 bool MediaValues::ComputeLengthImpl(double value, | 175 bool MediaValues::ComputeLengthImpl(double value, |
| 176 CSSPrimitiveValue::UnitType type, | 176 CSSPrimitiveValue::UnitType type, |
| 177 unsigned default_font_size, | 177 unsigned default_font_size, |
| 178 double viewport_width, | 178 double viewport_width, |
| 179 double viewport_height, | 179 double viewport_height, |
| 180 double& result) { | 180 double& result) { |
| 181 // The logic in this function is duplicated from | 181 // The logic in this function is duplicated from |
| 182 // CSSToLengthConversionData::zoomedComputedPixels() because | 182 // CSSToLengthConversionData::ZoomedComputedPixels() because |
| 183 // MediaValues::computeLength() needs nearly identical logic, but we haven't | 183 // MediaValues::ComputeLength() needs nearly identical logic, but we haven't |
| 184 // found a way to make CSSToLengthConversionData::zoomedComputedPixels() more | 184 // found a way to make CSSToLengthConversionData::ZoomedComputedPixels() more |
| 185 // generic (to solve both cases) without hurting performance. | 185 // generic (to solve both cases) without hurting performance. |
| 186 // FIXME - Unite the logic here with CSSToLengthConversionData in a performant | 186 // FIXME - Unite the logic here with CSSToLengthConversionData in a performant |
| 187 // way. | 187 // way. |
| 188 switch (type) { | 188 switch (type) { |
| 189 case CSSPrimitiveValue::UnitType::kEms: | 189 case CSSPrimitiveValue::UnitType::kEms: |
| 190 case CSSPrimitiveValue::UnitType::kRems: | 190 case CSSPrimitiveValue::UnitType::kRems: |
| 191 result = value * default_font_size; | 191 result = value * default_font_size; |
| 192 return true; | 192 return true; |
| 193 case CSSPrimitiveValue::UnitType::kPixels: | 193 case CSSPrimitiveValue::UnitType::kPixels: |
| 194 case CSSPrimitiveValue::UnitType::kUserUnits: | 194 case CSSPrimitiveValue::UnitType::kUserUnits: |
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| 237 | 237 |
| 238 LocalFrame* MediaValues::FrameFrom(Document& document) { | 238 LocalFrame* MediaValues::FrameFrom(Document& document) { |
| 239 Document* executing_document = document.ImportsController() | 239 Document* executing_document = document.ImportsController() |
| 240 ? document.ImportsController()->Master() | 240 ? document.ImportsController()->Master() |
| 241 : &document; | 241 : &document; |
| 242 DCHECK(executing_document); | 242 DCHECK(executing_document); |
| 243 return executing_document->GetFrame(); | 243 return executing_document->GetFrame(); |
| 244 } | 244 } |
| 245 | 245 |
| 246 } // namespace blink | 246 } // namespace blink |
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