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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #include "config.h" | 31 #include "config.h" |
32 #include "core/css/CSSToLengthConversionData.h" | 32 #include "core/css/CSSToLengthConversionData.h" |
33 | 33 |
| 34 #include "core/rendering/RenderView.h" |
34 #include "core/rendering/style/RenderStyle.h" | 35 #include "core/rendering/style/RenderStyle.h" |
35 | 36 |
36 namespace WebCore { | 37 namespace WebCore { |
37 | 38 |
| 39 CSSToLengthConversionData::CSSToLengthConversionData(const RenderStyle* style, c
onst RenderStyle* rootStyle, const RenderView* renderView, float zoom, bool comp
utingFontSize) |
| 40 : m_style(style) |
| 41 , m_rootStyle(rootStyle) |
| 42 , m_viewportWidth(renderView ? renderView->layoutViewportWidth() : 0) |
| 43 , m_viewportHeight(renderView ? renderView->layoutViewportHeight() : 0) |
| 44 , m_zoom(zoom) |
| 45 , m_useEffectiveZoom(false) |
| 46 , m_computingFontSize(computingFontSize) |
| 47 { |
| 48 ASSERT(zoom > 0); |
| 49 } |
| 50 |
| 51 CSSToLengthConversionData::CSSToLengthConversionData(const RenderStyle* style, c
onst RenderStyle* rootStyle, const RenderView* renderView, bool computingFontSiz
e) |
| 52 : m_style(style) |
| 53 , m_rootStyle(rootStyle) |
| 54 , m_viewportWidth(renderView ? renderView->layoutViewportWidth() : 0) |
| 55 , m_viewportHeight(renderView ? renderView->layoutViewportHeight() : 0) |
| 56 , m_useEffectiveZoom(true) |
| 57 , m_computingFontSize(computingFontSize) |
| 58 { |
| 59 } |
| 60 |
| 61 CSSToLengthConversionData::CSSToLengthConversionData(const RenderStyle* style, c
onst RenderStyle* rootStyle, float viewportWidth, float viewportHeight, float zo
om, bool computingFontSize) |
| 62 : m_style(style) |
| 63 , m_rootStyle(rootStyle) |
| 64 , m_viewportWidth(viewportWidth) |
| 65 , m_viewportHeight(viewportHeight) |
| 66 , m_zoom(zoom) |
| 67 , m_useEffectiveZoom(false) |
| 68 , m_computingFontSize(computingFontSize) |
| 69 { |
| 70 ASSERT(zoom > 0); |
| 71 } |
| 72 |
38 float CSSToLengthConversionData::zoom() const | 73 float CSSToLengthConversionData::zoom() const |
39 { | 74 { |
40 if (m_useEffectiveZoom) | 75 if (m_useEffectiveZoom) |
41 return m_style ? m_style->effectiveZoom() : 1; | 76 return m_style ? m_style->effectiveZoom() : 1; |
42 return m_zoom; | 77 return m_zoom; |
43 } | 78 } |
44 | 79 |
| 80 double CSSToLengthConversionData::viewportWidthPercent() const |
| 81 { |
| 82 m_style->setHasViewportUnits(); |
| 83 return m_viewportWidth / 100; |
| 84 } |
| 85 double CSSToLengthConversionData::viewportHeightPercent() const |
| 86 { |
| 87 m_style->setHasViewportUnits(); |
| 88 return m_viewportHeight / 100; |
| 89 } |
| 90 double CSSToLengthConversionData::viewportMinPercent() const |
| 91 { |
| 92 m_style->setHasViewportUnits(); |
| 93 return std::min(m_viewportWidth, m_viewportHeight) / 100; |
| 94 } |
| 95 double CSSToLengthConversionData::viewportMaxPercent() const |
| 96 { |
| 97 m_style->setHasViewportUnits(); |
| 98 return std::max(m_viewportWidth, m_viewportHeight) / 100; |
| 99 } |
| 100 |
45 } // namespace WebCore | 101 } // namespace WebCore |
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