本文整理汇总了C++中HTMLSelectElement::setActiveSelectionAnchorIndex方法的典型用法代码示例。如果您正苦于以下问题：C++ HTMLSelectElement::setActiveSelectionAnchorIndex方法的具体用法？C++ HTMLSelectElement::setActiveSelectionAnchorIndex怎么用？C++ HTMLSelectElement::setActiveSelectionAnchorIndex使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类HTMLSelectElement的用法示例。
在下文中一共展示了HTMLSelectElement::setActiveSelectionAnchorIndex方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: autoscroll
void RenderListBox::autoscroll()
{
IntPoint pos = document()->frame()->view()->windowToContents(document()->frame()->eventHandler()->currentMousePosition());
int rx = 0;
int ry = 0;
absolutePosition(rx, ry);
int offsetX = pos.x() - rx;
int offsetY = pos.y() - ry;
int endIndex = -1;
int rows = numVisibleItems();
int offset = m_indexOffset;
if (offsetY < borderTop() + paddingTop() && scrollToRevealElementAtListIndex(offset - 1))
endIndex = offset - 1;
else if (offsetY > height() - paddingBottom() - borderBottom() && scrollToRevealElementAtListIndex(offset + rows))
endIndex = offset + rows - 1;
else
endIndex = listIndexAtOffset(offsetX, offsetY);
if (endIndex >= 0) {
HTMLSelectElement* select = static_cast<HTMLSelectElement*>(node());
m_inAutoscroll = true;
if (!select->multiple())
select->setActiveSelectionAnchorIndex(endIndex);
select->setActiveSelectionEndIndex(endIndex);
select->updateListBoxSelection(!select->multiple());
m_inAutoscroll = false;
}
}示例2: autoscroll
void RenderListBox::autoscroll()
{
IntPoint pos = frame()->view()->windowToContents(frame()->eventHandler()->currentMousePosition());
int endIndex = scrollToward(pos);
if (endIndex >= 0) {
HTMLSelectElement* select = toHTMLSelectElement(node());
m_inAutoscroll = true;
if (!select->multiple())
select->setActiveSelectionAnchorIndex(endIndex);
select->setActiveSelectionEndIndex(endIndex);
select->updateListBoxSelection(!select->multiple());
m_inAutoscroll = false;
}
}