NS_IMETHODIMP
nsXFormsRepeatElement::GetIndex(PRUint32 *aIndex)
{
NS_ENSURE_ARG(aIndex);
if (mIsParent) {
if (!mCurrentRepeat) {
*aIndex = 0;
return NS_OK;
}
return mCurrentRepeat->GetIndex(aIndex);
}
*aIndex = mCurrentIndex;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsRepeatElement::SetIndex(PRUint32 *aIndex,
PRBool aIsRefresh)
{
NS_ENSURE_ARG(aIndex);
#ifdef DEBUG_XF_REPEAT
printf("\tSetindex to %d (current: %d, max: %d), aIsRefresh=%d\n",
*aIndex, mCurrentIndex, mMaxIndex, aIsRefresh);
#endif
nsresult rv;
// Set repeat-index
if (mIsParent) {
NS_ASSERTION(mCurrentRepeat,
"How can we be a repeat parent without a child?");
// We're the parent of nested repeats, set through the correct repeat
return mCurrentRepeat->SetIndex(aIndex, aIsRefresh);
}
// Do nothing if we are not showing anything
if (mMaxIndex == 0) {
SanitizeIndex(aIndex, PR_TRUE);
mCurrentIndex = *aIndex;
return NS_OK;
}
if (aIsRefresh && !mCurrentIndex) {
// If we are refreshing, get existing index value from parent
NS_ASSERTION(mParent,
"SetIndex with aIsRefresh == PR_TRUE for a non-nested repeat?!");
rv = mParent->GetIndex(aIndex);
NS_ENSURE_SUCCESS(rv, rv);
}
// Check min. and max. value
SanitizeIndex(aIndex, PR_TRUE);
// Do nothing if setting to existing value
if (!aIsRefresh && mCurrentIndex && *aIndex == mCurrentIndex)
return NS_OK;
#ifdef DEBUG_XF_REPEAT
printf("\tWill set index to %d\n",
*aIndex);
#endif
// Set the repeat-index
rv = SetChildIndex(*aIndex, PR_TRUE, aIsRefresh);
NS_ENSURE_SUCCESS(rv, rv);
// Unset previous repeat-index
if (mCurrentIndex) {
// We had the previous selection, unset directly
SetChildIndex(mCurrentIndex, PR_FALSE, aIsRefresh);
}
if (mParent) {
// Selection is in another repeat, inform parent (it will inform the
// previous owner of its new state)
rv = mParent->SetCurrentRepeat(this, *aIndex);
NS_ENSURE_SUCCESS(rv, rv);
}
// Set current index to new value
mCurrentIndex = *aIndex;
// Inform of index change
mParent ? mParent->IndexHasChanged() : IndexHasChanged();
return NS_OK;
}