InlineBox* RootInlineBox::closestLeafChildForXPos(int x)
{
InlineBox* firstLeaf = firstLeafChildAfterBox();
InlineBox* lastLeaf = lastLeafChildBeforeBox();
if (firstLeaf == lastLeaf)
return firstLeaf;
// Avoid returning a list marker when possible.
if (x <= firstLeaf->m_x && !firstLeaf->object()->isListMarker())
// The x coordinate is less or equal to left edge of the firstLeaf.
// Return it.
return firstLeaf;
if (x >= lastLeaf->m_x + lastLeaf->m_width && !lastLeaf->object()->isListMarker())
// The x coordinate is greater or equal to right edge of the lastLeaf.
// Return it.
return lastLeaf;
for (InlineBox* leaf = firstLeaf; leaf && leaf != lastLeaf; leaf = leaf->nextLeafChild()) {
if (!leaf->object()->isListMarker()) {
int leafX = leaf->m_x;
if (x < leafX + leaf->m_width)
// The x coordinate is less than the right edge of the box.
// Return it.
return leaf;
}
}
return lastLeaf;
}
InlineBox* RootInlineBox::closestLeafChildForXPos(int x, bool onlyEditableLeaves)
{
InlineBox* firstLeaf = firstLeafChildAfterBox();
InlineBox* lastLeaf = lastLeafChildBeforeBox();
if (firstLeaf == lastLeaf && (!onlyEditableLeaves || isEditableLeaf(firstLeaf)))
return firstLeaf;
// Avoid returning a list marker when possible.
if (x <= firstLeaf->m_x && !firstLeaf->object()->isListMarker() && (!onlyEditableLeaves || isEditableLeaf(firstLeaf)))
// The x coordinate is less or equal to left edge of the firstLeaf.
// Return it.
return firstLeaf;
if (x >= lastLeaf->m_x + lastLeaf->m_width && !lastLeaf->object()->isListMarker() && (!onlyEditableLeaves || isEditableLeaf(lastLeaf)))
// The x coordinate is greater or equal to right edge of the lastLeaf.
// Return it.
return lastLeaf;
InlineBox* closestLeaf = 0;
for (InlineBox* leaf = firstLeaf; leaf; leaf = leaf->nextLeafChild()) {
if (!leaf->object()->isListMarker() && (!onlyEditableLeaves || isEditableLeaf(leaf))) {
closestLeaf = leaf;
if (x < leaf->m_x + leaf->m_width)
// The x coordinate is less than the right edge of the box.
// Return it.
return leaf;
}
}
return closestLeaf ? closestLeaf : lastLeaf;
}
