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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 | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
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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1240 | 1240 |
1241 return String(); | 1241 return String(); |
1242 } | 1242 } |
1243 | 1243 |
1244 LayoutRect AXNodeObject::elementRect() const | 1244 LayoutRect AXNodeObject::elementRect() const |
1245 { | 1245 { |
1246 // First check if it has a custom rect, for example if this element is tied to a canvas path. | 1246 // First check if it has a custom rect, for example if this element is tied to a canvas path. |
1247 if (!m_explicitElementRect.isEmpty()) | 1247 if (!m_explicitElementRect.isEmpty()) |
1248 return m_explicitElementRect; | 1248 return m_explicitElementRect; |
1249 | 1249 |
1250 // AXNodeObjects have no mechanism yet to return a size or position. | 1250 // FIXME: If there are a lot of elements in the canvas, it will be inefficie nt. |
1251 // We can avoid the inefficient calculations by using AXComputedObjectAttrib uteCache. | |
1252 if (node()->parentElement()->isInCanvasSubtree()) { | |
1253 LayoutRect rect; | |
1254 | |
1255 for (Node* child = node()->firstChild(); child; child = child->nextSibli ng()) { | |
1256 if (child->isHTMLElement()) { | |
1257 if (AXObject* obj = axObjectCache()->get(child)) { | |
1258 if (rect.isEmpty()) | |
1259 rect = obj->elementRect(); | |
1260 else | |
1261 rect.unite(obj->elementRect()); | |
1262 } | |
1263 } | |
1264 } | |
1265 | |
1266 if (!rect.isEmpty()) | |
1267 return rect; | |
1268 } | |
1269 | |
1270 // If this object doesn't have an explicit element rect or computable from i ts children, | |
1251 // For now, let's return the position of the ancestor that does have a posit ion, | 1271 // For now, let's return the position of the ancestor that does have a posit ion, |
dmazzoni
2014/06/10 15:43:02
nit: lowercase 'f' since this is continuing the se
zino
2014/06/12 07:50:14
Done.
| |
1252 // and make it the width of that parent, and about the height of a line of t ext, so that it's clear the object is a child of the parent. | 1272 // and make it the width of that parent, and about the height of a line of t ext, so that it's clear the object is a child of the parent. |
1253 | 1273 |
1254 LayoutRect boundingBox; | 1274 LayoutRect boundingBox; |
1255 | 1275 |
1256 for (AXObject* positionProvider = parentObject(); positionProvider; position Provider = positionProvider->parentObject()) { | 1276 for (AXObject* positionProvider = parentObject(); positionProvider; position Provider = positionProvider->parentObject()) { |
1257 if (positionProvider->isAXRenderObject()) { | 1277 if (positionProvider->isAXRenderObject()) { |
1258 LayoutRect parentRect = positionProvider->elementRect(); | 1278 LayoutRect parentRect = positionProvider->elementRect(); |
1259 boundingBox.setSize(LayoutSize(parentRect.width(), LayoutUnit(std::m in(10.0f, parentRect.height().toFloat())))); | 1279 boundingBox.setSize(LayoutSize(parentRect.width(), LayoutUnit(std::m in(10.0f, parentRect.height().toFloat())))); |
1260 boundingBox.setLocation(parentRect.location()); | 1280 boundingBox.setLocation(parentRect.location()); |
1261 break; | 1281 break; |
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1681 float range = maxValueForRange() - minValueForRange(); | 1701 float range = maxValueForRange() - minValueForRange(); |
1682 float value = valueForRange(); | 1702 float value = valueForRange(); |
1683 | 1703 |
1684 value += range * (percentChange / 100); | 1704 value += range * (percentChange / 100); |
1685 setValue(String::number(value)); | 1705 setValue(String::number(value)); |
1686 | 1706 |
1687 axObjectCache()->postNotification(node(), AXObjectCache::AXValueChanged, tru e); | 1707 axObjectCache()->postNotification(node(), AXObjectCache::AXValueChanged, tru e); |
1688 } | 1708 } |
1689 | 1709 |
1690 } // namespace WebCore | 1710 } // namespace WebCore |
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