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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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44 #include "core/page/FrameView.h" | 44 #include "core/page/FrameView.h" |
45 #include "core/rendering/HitTestResult.h" | 45 #include "core/rendering/HitTestResult.h" |
46 #include "core/rendering/RenderBlock.h" | 46 #include "core/rendering/RenderBlock.h" |
47 | 47 |
48 using namespace std; | 48 using namespace std; |
49 | 49 |
50 namespace WebCore { | 50 namespace WebCore { |
51 | 51 |
52 static IntRect boundingBoxForEventNodes(Node* eventNode) | 52 static IntRect boundingBoxForEventNodes(Node* eventNode) |
53 { | 53 { |
54 if (!eventNode->document()->view()) | 54 if (!eventNode->document().view()) |
55 return IntRect(); | 55 return IntRect(); |
56 | 56 |
57 IntRect result; | 57 IntRect result; |
58 Node* node = eventNode; | 58 Node* node = eventNode; |
59 while (node) { | 59 while (node) { |
60 // Skip the whole sub-tree if the node doesn't propagate events. | 60 // Skip the whole sub-tree if the node doesn't propagate events. |
61 if (node != eventNode && node->willRespondToMouseClickEvents()) { | 61 if (node != eventNode && node->willRespondToMouseClickEvents()) { |
62 node = NodeTraversal::nextSkippingChildren(node, eventNode); | 62 node = NodeTraversal::nextSkippingChildren(node, eventNode); |
63 continue; | 63 continue; |
64 } | 64 } |
65 result.unite(node->pixelSnappedBoundingBox()); | 65 result.unite(node->pixelSnappedBoundingBox()); |
66 node = NodeTraversal::next(node, eventNode); | 66 node = NodeTraversal::next(node, eventNode); |
67 } | 67 } |
68 return eventNode->document()->view()->contentsToWindow(result); | 68 return eventNode->document().view()->contentsToWindow(result); |
69 } | 69 } |
70 | 70 |
71 static float scoreTouchTarget(IntPoint touchPoint, int padding, IntRect bounding
Box) | 71 static float scoreTouchTarget(IntPoint touchPoint, int padding, IntRect bounding
Box) |
72 { | 72 { |
73 if (boundingBox.isEmpty()) | 73 if (boundingBox.isEmpty()) |
74 return 0; | 74 return 0; |
75 | 75 |
76 float reciprocalPadding = 1.f / padding; | 76 float reciprocalPadding = 1.f / padding; |
77 float score = 1; | 77 float score = 1; |
78 | 78 |
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141 for (HashMap<Node*, TouchTargetData>::iterator it = touchTargets.begin(); it
!= touchTargets.end(); ++it) { | 141 for (HashMap<Node*, TouchTargetData>::iterator it = touchTargets.begin(); it
!= touchTargets.end(); ++it) { |
142 // Currently the scoring function uses the overlap area with the fat poi
nt as the score. | 142 // Currently the scoring function uses the overlap area with the fat poi
nt as the score. |
143 // We ignore the candidates that has less than 1/2 overlap (we consider
not really ambiguous enough) than the best candidate to avoid excessive popups. | 143 // We ignore the candidates that has less than 1/2 overlap (we consider
not really ambiguous enough) than the best candidate to avoid excessive popups. |
144 if (it->value.score < bestScore * 0.5) | 144 if (it->value.score < bestScore * 0.5) |
145 continue; | 145 continue; |
146 goodTargets.append(it->value.windowBoundingBox); | 146 goodTargets.append(it->value.windowBoundingBox); |
147 } | 147 } |
148 } | 148 } |
149 | 149 |
150 } // namespace WebCore | 150 } // namespace WebCore |
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