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| 1 /* | 1 /* |
| 2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 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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| 92 goodTargets.clear(); | 92 goodTargets.clear(); |
| 93 | 93 |
| 94 int touchPointPadding = | 94 int touchPointPadding = |
| 95 ceil(std::max(touchBoxInRootFrame.width(), touchBoxInRootFrame.height()) * | 95 ceil(std::max(touchBoxInRootFrame.width(), touchBoxInRootFrame.height()) * |
| 96 0.5); | 96 0.5); |
| 97 | 97 |
| 98 IntPoint touchPoint = touchBoxInRootFrame.center(); | 98 IntPoint touchPoint = touchBoxInRootFrame.center(); |
| 99 IntPoint contentsPoint = mainFrame->view()->rootFrameToContents(touchPoint); | 99 IntPoint contentsPoint = mainFrame->view()->rootFrameToContents(touchPoint); |
| 100 | 100 |
| 101 HitTestResult result = mainFrame->eventHandler().hitTestResultAtPoint( | 101 HitTestResult result = mainFrame->eventHandler().hitTestResultAtPoint( |
| 102 contentsPoint, HitTestRequest::ReadOnly | HitTestRequest::Active | | 102 contentsPoint, |
| 103 HitTestRequest::ListBased, | 103 HitTestRequest::ReadOnly | HitTestRequest::Active | |
| 104 HitTestRequest::ListBased, |
| 104 LayoutSize(touchPointPadding, touchPointPadding)); | 105 LayoutSize(touchPointPadding, touchPointPadding)); |
| 105 const HeapListHashSet<Member<Node>>& hitResults = | 106 const HeapListHashSet<Member<Node>>& hitResults = |
| 106 result.listBasedTestResult(); | 107 result.listBasedTestResult(); |
| 107 | 108 |
| 108 // Blacklist nodes that are container of disambiguated nodes. | 109 // Blacklist nodes that are container of disambiguated nodes. |
| 109 // It is not uncommon to have a clickable <div> that contains other clickable | 110 // It is not uncommon to have a clickable <div> that contains other clickable |
| 110 // objects. This heuristic avoids excessive disambiguation in that case. | 111 // objects. This heuristic avoids excessive disambiguation in that case. |
| 111 HeapHashSet<Member<Node>> blackList; | 112 HeapHashSet<Member<Node>> blackList; |
| 112 for (const auto& hitResult : hitResults) { | 113 for (const auto& hitResult : hitResults) { |
| 113 // Ignore any Nodes that can't be clicked on. | 114 // Ignore any Nodes that can't be clicked on. |
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| 155 // (we consider not really ambiguous enough) than the best candidate to | 156 // (we consider not really ambiguous enough) than the best candidate to |
| 156 // avoid excessive popups. | 157 // avoid excessive popups. |
| 157 if (touchTarget.value.score < bestScore * 0.5) | 158 if (touchTarget.value.score < bestScore * 0.5) |
| 158 continue; | 159 continue; |
| 159 goodTargets.push_back(touchTarget.value.windowBoundingBox); | 160 goodTargets.push_back(touchTarget.value.windowBoundingBox); |
| 160 highlightNodes.push_back(touchTarget.key); | 161 highlightNodes.push_back(touchTarget.key); |
| 161 } | 162 } |
| 162 } | 163 } |
| 163 | 164 |
| 164 } // namespace blink | 165 } // namespace blink |
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