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| 1 /* | 1 /* |
| 2 * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved. | 2 * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved. |
| 3 * Copyright (C) 2013 Google Inc. All rights reserved. | 3 * Copyright (C) 2013 Google Inc. All rights reserved. |
| 4 * | 4 * |
| 5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
| 6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
| 7 * are met: | 7 * are met: |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. 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 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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| 50 | 50 |
| 51 FrameViewBase* FrameViewBase::root() const { | 51 FrameViewBase* FrameViewBase::root() const { |
| 52 const FrameViewBase* top = this; | 52 const FrameViewBase* top = this; |
| 53 while (top->parent()) | 53 while (top->parent()) |
| 54 top = top->parent(); | 54 top = top->parent(); |
| 55 if (top->isFrameView()) | 55 if (top->isFrameView()) |
| 56 return const_cast<FrameViewBase*>(static_cast<const FrameViewBase*>(top)); | 56 return const_cast<FrameViewBase*>(static_cast<const FrameViewBase*>(top)); |
| 57 return 0; | 57 return 0; |
| 58 } | 58 } |
| 59 | 59 |
| 60 IntRect FrameViewBase::convertFromRootFrame(const IntRect& rectInRootFrame) cons
t { | 60 IntRect FrameViewBase::convertFromRootFrame( |
| 61 const IntRect& rectInRootFrame) const { |
| 61 if (const FrameViewBase* parentFrameViewBase = parent()) { | 62 if (const FrameViewBase* parentFrameViewBase = parent()) { |
| 62 IntRect parentRect = parentFrameViewBase->convertFromRootFrame(rectInRootFra
me); | 63 IntRect parentRect = |
| 64 parentFrameViewBase->convertFromRootFrame(rectInRootFrame); |
| 63 return convertFromContainingWidget(parentRect); | 65 return convertFromContainingWidget(parentRect); |
| 64 } | 66 } |
| 65 return rectInRootFrame; | 67 return rectInRootFrame; |
| 66 } | 68 } |
| 67 | 69 |
| 68 IntRect FrameViewBase::convertToRootFrame(const IntRect& localRect) const { | 70 IntRect FrameViewBase::convertToRootFrame(const IntRect& localRect) const { |
| 69 if (const FrameViewBase* parentFrameViewBase = parent()) { | 71 if (const FrameViewBase* parentFrameViewBase = parent()) { |
| 70 IntRect parentRect = convertToContainingWidget(localRect); | 72 IntRect parentRect = convertToContainingWidget(localRect); |
| 71 return parentFrameViewBase->convertToRootFrame(parentRect); | 73 return parentFrameViewBase->convertToRootFrame(parentRect); |
| 72 } | 74 } |
| 73 return localRect; | 75 return localRect; |
| 74 } | 76 } |
| 75 | 77 |
| 76 IntPoint FrameViewBase::convertFromRootFrame(const IntPoint& pointInRootFrame) c
onst { | 78 IntPoint FrameViewBase::convertFromRootFrame( |
| 79 const IntPoint& pointInRootFrame) const { |
| 77 if (const FrameViewBase* parentFrameViewBase = parent()) { | 80 if (const FrameViewBase* parentFrameViewBase = parent()) { |
| 78 IntPoint parentPoint = parentFrameViewBase->convertFromRootFrame(pointInRoot
Frame); | 81 IntPoint parentPoint = |
| 82 parentFrameViewBase->convertFromRootFrame(pointInRootFrame); |
| 79 return convertFromContainingWidget(parentPoint); | 83 return convertFromContainingWidget(parentPoint); |
| 80 } | 84 } |
| 81 return pointInRootFrame; | 85 return pointInRootFrame; |
| 82 } | 86 } |
| 83 | 87 |
| 84 FloatPoint FrameViewBase::convertFromRootFrame( | 88 FloatPoint FrameViewBase::convertFromRootFrame( |
| 85 const FloatPoint& pointInRootFrame) const { | 89 const FloatPoint& pointInRootFrame) const { |
| 86 // FrameViewBase / windows are required to be IntPoint aligned, but we may nee
d to | 90 // FrameViewBase / windows are required to be IntPoint aligned, but we may |
| 87 // convert FloatPoint values within them (eg. for event co-ordinates). | 91 // need to convert FloatPoint values within them (eg. for event co-ordinates). |
| 88 IntPoint flooredPoint = flooredIntPoint(pointInRootFrame); | 92 IntPoint flooredPoint = flooredIntPoint(pointInRootFrame); |
| 89 FloatPoint parentPoint = this->convertFromRootFrame(flooredPoint); | 93 FloatPoint parentPoint = this->convertFromRootFrame(flooredPoint); |
| 90 FloatSize windowFraction = pointInRootFrame - flooredPoint; | 94 FloatSize windowFraction = pointInRootFrame - flooredPoint; |
| 91 // Use linear interpolation handle any fractional value (eg. for iframes | 95 // Use linear interpolation handle any fractional value (eg. for iframes |
| 92 // subject to a transform beyond just a simple translation). | 96 // subject to a transform beyond just a simple translation). |
| 93 // FIXME: Add FloatPoint variants of all co-ordinate space conversion APIs. | 97 // FIXME: Add FloatPoint variants of all co-ordinate space conversion APIs. |
| 94 if (!windowFraction.isEmpty()) { | 98 if (!windowFraction.isEmpty()) { |
| 95 const int kFactor = 1000; | 99 const int kFactor = 1000; |
| 96 IntPoint parentLineEnd = this->convertFromRootFrame( | 100 IntPoint parentLineEnd = this->convertFromRootFrame( |
| 97 flooredPoint + roundedIntSize(windowFraction.scaledBy(kFactor))); | 101 flooredPoint + roundedIntSize(windowFraction.scaledBy(kFactor))); |
| 98 FloatSize parentFraction = | 102 FloatSize parentFraction = |
| 99 (parentLineEnd - parentPoint).scaledBy(1.0f / kFactor); | 103 (parentLineEnd - parentPoint).scaledBy(1.0f / kFactor); |
| 100 parentPoint.move(parentFraction); | 104 parentPoint.move(parentFraction); |
| 101 } | 105 } |
| 102 return parentPoint; | 106 return parentPoint; |
| 103 } | 107 } |
| 104 | 108 |
| 105 IntPoint FrameViewBase::convertToRootFrame(const IntPoint& localPoint) const { | 109 IntPoint FrameViewBase::convertToRootFrame(const IntPoint& localPoint) const { |
| 106 if (const FrameViewBase* parentFrameViewBase = parent()) { | 110 if (const FrameViewBase* parentFrameViewBase = parent()) { |
| 107 IntPoint parentPoint = convertToContainingWidget(localPoint); | 111 IntPoint parentPoint = convertToContainingWidget(localPoint); |
| 108 return parentFrameViewBase->convertToRootFrame(parentPoint); | 112 return parentFrameViewBase->convertToRootFrame(parentPoint); |
| 109 } | 113 } |
| 110 return localPoint; | 114 return localPoint; |
| 111 } | 115 } |
| 112 | 116 |
| 113 IntRect FrameViewBase::convertToContainingWidget(const IntRect& localRect) const
{ | 117 IntRect FrameViewBase::convertToContainingWidget( |
| 118 const IntRect& localRect) const { |
| 114 if (const FrameViewBase* parentFrameViewBase = parent()) { | 119 if (const FrameViewBase* parentFrameViewBase = parent()) { |
| 115 IntRect parentRect(localRect); | 120 IntRect parentRect(localRect); |
| 116 parentRect.setLocation( | 121 parentRect.setLocation( |
| 117 parentFrameViewBase->convertChildToSelf(this, localRect.location())); | 122 parentFrameViewBase->convertChildToSelf(this, localRect.location())); |
| 118 return parentRect; | 123 return parentRect; |
| 119 } | 124 } |
| 120 return localRect; | 125 return localRect; |
| 121 } | 126 } |
| 122 | 127 |
| 123 IntRect FrameViewBase::convertFromContainingWidget(const IntRect& parentRect) co
nst { | 128 IntRect FrameViewBase::convertFromContainingWidget( |
| 129 const IntRect& parentRect) const { |
| 124 if (const FrameViewBase* parentFrameViewBase = parent()) { | 130 if (const FrameViewBase* parentFrameViewBase = parent()) { |
| 125 IntRect localRect = parentRect; | 131 IntRect localRect = parentRect; |
| 126 localRect.setLocation( | 132 localRect.setLocation( |
| 127 parentFrameViewBase->convertSelfToChild(this, localRect.location())); | 133 parentFrameViewBase->convertSelfToChild(this, localRect.location())); |
| 128 return localRect; | 134 return localRect; |
| 129 } | 135 } |
| 130 | 136 |
| 131 return parentRect; | 137 return parentRect; |
| 132 } | 138 } |
| 133 | 139 |
| 134 IntPoint FrameViewBase::convertToContainingWidget(const IntPoint& localPoint) co
nst { | 140 IntPoint FrameViewBase::convertToContainingWidget( |
| 141 const IntPoint& localPoint) const { |
| 135 if (const FrameViewBase* parentFrameViewBase = parent()) | 142 if (const FrameViewBase* parentFrameViewBase = parent()) |
| 136 return parentFrameViewBase->convertChildToSelf(this, localPoint); | 143 return parentFrameViewBase->convertChildToSelf(this, localPoint); |
| 137 | 144 |
| 138 return localPoint; | 145 return localPoint; |
| 139 } | 146 } |
| 140 | 147 |
| 141 IntPoint FrameViewBase::convertFromContainingWidget( | 148 IntPoint FrameViewBase::convertFromContainingWidget( |
| 142 const IntPoint& parentPoint) const { | 149 const IntPoint& parentPoint) const { |
| 143 if (const FrameViewBase* parentFrameViewBase = parent()) | 150 if (const FrameViewBase* parentFrameViewBase = parent()) |
| 144 return parentFrameViewBase->convertSelfToChild(this, parentPoint); | 151 return parentFrameViewBase->convertSelfToChild(this, parentPoint); |
| 145 | 152 |
| 146 return parentPoint; | 153 return parentPoint; |
| 147 } | 154 } |
| 148 | 155 |
| 149 IntPoint FrameViewBase::convertChildToSelf(const FrameViewBase*, | 156 IntPoint FrameViewBase::convertChildToSelf(const FrameViewBase*, |
| 150 const IntPoint& point) const { | 157 const IntPoint& point) const { |
| 151 return point; | 158 return point; |
| 152 } | 159 } |
| 153 | 160 |
| 154 IntPoint FrameViewBase::convertSelfToChild(const FrameViewBase*, | 161 IntPoint FrameViewBase::convertSelfToChild(const FrameViewBase*, |
| 155 const IntPoint& point) const { | 162 const IntPoint& point) const { |
| 156 return point; | 163 return point; |
| 157 } | 164 } |
| 158 | 165 |
| 159 } // namespace blink | 166 } // namespace blink |
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