Exemplo n.º 1
0
void RenderListItem::updateListMarkerNumbers()
{
    // If distribution recalc is needed, updateListMarkerNumber will be re-invoked
    // after distribution is calculated.
    if (node()->document().childNeedsDistributionRecalc())
        return;

    Node* listNode = enclosingList(this);
    ASSERT(listNode);

    bool isListReversed = false;
    HTMLOListElement* oListElement = isHTMLOListElement(listNode) ? toHTMLOListElement(listNode) : 0;
    if (oListElement) {
        oListElement->itemCountChanged();
        isListReversed = oListElement->isReversed();
    }

    // FIXME: The n^2 protection below doesn't help if the elements were inserted after the
    // the list had already been displayed.

    // Avoid an O(n^2) walk over the children below when they're all known to be attaching.
    if (listNode->needsAttach())
        return;

    for (RenderListItem* item = previousOrNextItem(isListReversed, listNode, this); item; item = previousOrNextItem(isListReversed, listNode, item)) {
        if (!item->m_isValueUpToDate) {
            // If an item has been marked for update before, we can safely
            // assume that all the following ones have too.
            // This gives us the opportunity to stop here and avoid
            // marking the same nodes again.
            break;
        }
        item->updateValue();
    }
}
void RenderListItem::updateListMarkerNumbers()
{
    Node* listNode = enclosingList(this);
    // The list node can be the shadow root which has no renderer.
    ASSERT(listNode);
    if (!listNode)
        return;

    bool isListReversed = false;
    HTMLOListElement* oListElement = (listNode && listNode->hasTagName(olTag)) ? toHTMLOListElement(listNode) : 0;
    if (oListElement) {
        oListElement->itemCountChanged();
        isListReversed = oListElement->isReversed();
    }
    for (RenderListItem* item = previousOrNextItem(isListReversed, listNode, this); item; item = previousOrNextItem(isListReversed, listNode, item)) {
        if (!item->m_isValueUpToDate) {
            // If an item has been marked for update before, we can safely
            // assume that all the following ones have too.
            // This gives us the opportunity to stop here and avoid
            // marking the same nodes again.
            break;
        }
        item->updateValue();
    }
}
Exemplo n.º 3
0
void RenderListItem::updateListMarkerNumbers()
{
    // If distribution recalc is needed, updateListMarkerNumber will be re-invoked
    // after distribution is calculated.
    if (node()->document().childNeedsDistributionRecalc())
        return;

    Node* listNode = enclosingList(this);
    // The list node can be the shadow root which has no renderer.
    ASSERT(listNode);
    if (!listNode)
        return;

    bool isListReversed = false;
    HTMLOListElement* oListElement = isHTMLOListElement(listNode) ? toHTMLOListElement(listNode) : 0;
    if (oListElement) {
        oListElement->itemCountChanged();
        isListReversed = oListElement->isReversed();
    }
    for (RenderListItem* item = previousOrNextItem(isListReversed, listNode, this); item; item = previousOrNextItem(isListReversed, listNode, item)) {
        if (!item->m_isValueUpToDate) {
            // If an item has been marked for update before, we can safely
            // assume that all the following ones have too.
            // This gives us the opportunity to stop here and avoid
            // marking the same nodes again.
            break;
        }
        item->updateValue();
    }
}
Exemplo n.º 4
0
inline int RenderListItem::calcValue() const
{
    if (m_hasExplicitValue)
        return m_explicitValue;

    Node* list = enclosingList(this);
    HTMLOListElement* oListElement = isHTMLOListElement(list) ? toHTMLOListElement(list) : 0;
    int valueStep = 1;
    if (oListElement && oListElement->isReversed())
        valueStep = -1;

    // FIXME: This recurses to a possible depth of the length of the list.
    // That's not good -- we need to change this to an iterative algorithm.
    if (RenderListItem* previousItem = previousListItem(list, this))
        return previousItem->value() + valueStep;

    if (oListElement)
        return oListElement->start();

    return 1;
}
inline int RenderListItem::calcValue() const
{
    if (m_hasExplicitValue)
        return m_explicitValue;
    Node* list = enclosingList(this);
    RenderObject* listRenderer = list ? list->renderer() : 0;
    HTMLOListElement* oListElement = (list && list->hasTagName(olTag)) ? static_cast<HTMLOListElement*>(list) : 0;
    int valueStep = 1;
    if (oListElement && oListElement->isReversed())
        valueStep = -1;

    // FIXME: This recurses to a possible depth of the length of the list.
    // That's not good -- we need to change this to an iterative algorithm.
    if (RenderListItem* previousItem = previousListItem(listRenderer, this))
        return previousItem->value() + valueStep;

    if (oListElement)
        return oListElement->start();

    return 1;
}