bool LineBoxList::hitTest(LayoutBoxModelObject* renderer, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction) const { if (hitTestAction != HitTestForeground) return false; ASSERT(renderer->isLayoutBlock() || (renderer->isLayoutInline() && renderer->hasLayer())); // The only way an inline could hit test like this is if it has a layer. // If we have no lines then we have no work to do. if (!firstLineBox()) return false; LayoutPoint point = locationInContainer.point(); LayoutRect rect(firstLineBox()->isHorizontal() ? IntRect(point.x(), point.y() - locationInContainer.topPadding(), 1, locationInContainer.topPadding() + locationInContainer.bottomPadding() + 1) : IntRect(point.x() - locationInContainer.leftPadding(), point.y(), locationInContainer.rightPadding() + locationInContainer.leftPadding() + 1, 1)); if (!anyLineIntersectsRect(renderer, rect, accumulatedOffset)) return false; // See if our root lines contain the point. If so, then we hit test // them further. Note that boxes can easily overlap, so we can't make any assumptions // based off positions of our first line box or our last line box. for (InlineFlowBox* curr = lastLineBox(); curr; curr = curr->prevLineBox()) { RootInlineBox& root = curr->root(); if (rangeIntersectsRect(renderer, curr->logicalTopVisualOverflow(root.lineTop()), curr->logicalBottomVisualOverflow(root.lineBottom()), rect, accumulatedOffset)) { bool inside = curr->nodeAtPoint(result, locationInContainer, accumulatedOffset, root.lineTop(), root.lineBottom()); if (inside) { renderer->updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset)); return true; } } } return false; }