NS_IMETHODIMP
nsXFormsControlStub::ResetBoundNode(const nsString &aBindAttribute,
PRUint16 aResultType,
PRBool *aContextChanged)
{
NS_ENSURE_ARG(aContextChanged);
// Clear existing bound node, etc.
*aContextChanged = mBoundNode ? PR_TRUE : PR_FALSE;
nsCOMPtr<nsIDOMNode> oldBoundNode;
oldBoundNode.swap(mBoundNode);
mUsesModelBinding = PR_FALSE;
mAppearDisabled = PR_FALSE;
mDependencies.Clear();
RemoveIndexListeners();
if (!mHasParent || !mHasDoc || !HasBindingAttribute())
return NS_OK_XFORMS_NOTREADY;
nsCOMPtr<nsIDOMXPathResult> result;
nsresult rv = ProcessNodeBinding(aBindAttribute, aResultType,
getter_AddRefs(result));
if (NS_FAILED(rv)) {
nsXFormsUtils::ReportError(NS_LITERAL_STRING("controlBindError"), mElement);
return rv;
}
if (rv == NS_OK_XFORMS_DEFERRED || rv == NS_OK_XFORMS_NOTREADY || !result) {
// Binding was deferred, or not bound
return rv;
}
// Get context node, if any
if (mUsesModelBinding) {
// When bound via @bind, we'll get a snapshot back
result->SnapshotItem(0, getter_AddRefs(mBoundNode));
} else {
result->GetSingleNodeValue(getter_AddRefs(mBoundNode));
}
*aContextChanged = (oldBoundNode != mBoundNode);
// Some controls may not be bound to certain types of content. If the content
// is a disallowed type, report the error and dispatch a binding exception
// event.
PRBool isAllowed = IsContentAllowed();
if (!mBoundNode || !isAllowed) {
// If there's no result (ie, no instance node) returned by the above, it
// means that the binding is not pointing to an instance data node, so we
// should disable the control.
mAppearDisabled = PR_TRUE;
if (!isAllowed) {
// build the error string that we want output to the ErrorConsole
nsAutoString localName;
mElement->GetLocalName(localName);
const PRUnichar *strings[] = { localName.get() };
nsXFormsUtils::ReportError(
NS_LITERAL_STRING("boundTypeErrorComplexContent"),
strings, 1, mElement, mElement);
nsXFormsUtils::DispatchEvent(mElement, eEvent_BindingException);
}
nsCOMPtr<nsIXTFElementWrapper> wrapper(do_QueryInterface(mElement));
NS_ENSURE_STATE(wrapper);
PRInt32 iState;
GetDisabledIntrinsicState(&iState);
return wrapper->SetIntrinsicState(iState);
}
// Check for presence of @xsi:type on bound node and add as a dependency
nsCOMPtr<nsIDOMElement> boundEl(do_QueryInterface(mBoundNode));
if (boundEl) {
nsCOMPtr<nsIDOMAttr> attrNode;
rv = boundEl->GetAttributeNodeNS(NS_LITERAL_STRING(NS_NAMESPACE_XML_SCHEMA_INSTANCE),
NS_LITERAL_STRING("type"),
getter_AddRefs(attrNode));
if (NS_SUCCEEDED(rv) && attrNode) {
mDependencies.AppendObject(attrNode);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsXFormsRepeatElement::Refresh()
{
#ifdef DEBUG_XF_REPEAT
printf("nsXFormsRepeatElement::Refresh()\n");
#endif
if (mAddingChildren || mIsParent)
return NS_OK;
nsPostRefresh postRefresh = nsPostRefresh();
PRUint32 oldIndex = mCurrentIndex;
/// @todo The spec says: "This node-set must consist of contiguous child
/// element nodes, with the same local name and namespace name of a common
/// parent node. The behavior of element repeat with respect to
/// non-homogeneous node-sets is undefined."
/// @see http://www.w3.org/TR/xforms/slice9.html#ui-repeat
///
/// Can/should we check this somehow? (XXX)
// Get the nodeset we are bound to
nsresult rv;
nsCOMPtr<nsIDOMXPathResult> result;
rv = ProcessNodeBinding(NS_LITERAL_STRING("nodeset"),
nsIDOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
getter_AddRefs(result));
NS_ENSURE_SUCCESS(rv, rv);
// Unroll the repeat rows
rv = UnrollRows(result);
NS_ENSURE_SUCCESS(rv, rv);
// Maintain the index
if (mCurrentIndex || !mMaxIndex) {
// Somebody might have been fooling around with our children since last
// refresh (either using delete or through script). Or we might have an
// empty nodeset. So fix the index value.
SanitizeIndex(&mCurrentIndex);
} else if (mMaxIndex) {
// repeat-index has not been initialized, set it.
if (!mParent) {
GetStartingIndex(&mCurrentIndex);
// Inform listeners of initial index value
IndexHasChanged();
} else if (mLevel > 1) {
// Set repeat-index for inner repeats. If parent <contextcontainer/>
// element is selected then mCurrentIndex is setted on starting index.
nsCOMPtr<nsIDOMNode> temp = mElement;
nsCOMPtr<nsIDOMNode> parent;
nsCOMPtr<nsIXFormsRepeatItemElement> context;
while (!context) {
rv = temp->GetParentNode(getter_AddRefs(parent));
NS_ENSURE_SUCCESS(rv, rv);
if (!parent)
break;
context = do_QueryInterface(parent);
temp.swap(parent);
}
if (context) {
PRBool hasIndex = PR_FALSE;
context->GetIndexState(&hasIndex);
if (hasIndex) {
PRUint32 index = 0;
GetStartingIndex(&index);
SetIndex(&index, PR_FALSE);
}
}
return NS_OK;
}
}
// If we have the repeat-index, set it.
if (mCurrentIndex) {
SetChildIndex(mCurrentIndex, PR_TRUE, PR_TRUE);
}
if (mCurrentIndex != oldIndex) {
mParent ? mParent->IndexHasChanged() : IndexHasChanged();
}
return NS_OK;
}
NS_IMETHODIMP
nsXFormsItemSetElement::Refresh()
{
// We need to create item elements for each element referenced by the
// nodeset. Each of these items will create an anonymous HTML option element
// which will return from GetAnonymousNodes. We then clone our template
// content and insert the cloned content as children of the HTML option.
if (!nsXFormsUtils::IsDocumentReadyForBind(mElement)) {
// not ready to bind yet, defer
nsXFormsModelElement::DeferElementBind(this);
return NS_OK;
}
nsCOMPtr<nsIModelElementPrivate> model;
nsCOMPtr<nsIDOMXPathResult> result;
nsresult rv = ProcessNodeBinding(NS_LITERAL_STRING("nodeset"),
nsIDOMXPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
getter_AddRefs(result),
getter_AddRefs(model));
if (NS_FAILED(rv) | !result | !model)
return rv;
nsCOMPtr<nsIDOMNode> node, templateNode, cloneNode, tmpNode;
nsCOMPtr<nsIDOMElement> itemNode, itemWrapperNode, contextContainer;
nsCOMPtr<nsIDOMNodeList> templateNodes;
mElement->GetChildNodes(getter_AddRefs(templateNodes));
PRUint32 templateNodeCount = 0;
if (templateNodes)
templateNodes->GetLength(&templateNodeCount);
nsCOMPtr<nsIContent> content(do_QueryInterface(mElement));
NS_ENSURE_STATE(content);
nsCOMPtr<nsIDocument> doc = content->GetCurrentDoc();
nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(doc));
NS_ENSURE_STATE(domDoc);
PRUint32 nodeCount;
result->GetSnapshotLength(&nodeCount);
nsCOMPtr<nsIDOMNode> parent, tmp;
mElement->GetParentNode(getter_AddRefs(parent));
while (parent) {
if (nsXFormsUtils::IsXFormsElement(parent, NS_LITERAL_STRING("select1")) ||
nsXFormsUtils::IsXFormsElement(parent, NS_LITERAL_STRING("select"))) {
break;
}
tmp.swap(parent);
tmp->GetParentNode(getter_AddRefs(parent));
}
nsCOMPtr<nsIXFormsItemSetUIElement> uiItemSet(do_QueryInterface(mElement));
nsCOMPtr<nsIDOMElement> anonContent;
if (uiItemSet) {
uiItemSet->GetAnonymousItemSetContent(getter_AddRefs(anonContent));
}
NS_ENSURE_STATE(anonContent);
nsCOMPtr<nsIDOMNode> childNode, nodeReturn;
while (NS_SUCCEEDED(anonContent->GetFirstChild(getter_AddRefs(childNode))) &&
childNode) {
anonContent->RemoveChild(childNode, getter_AddRefs(nodeReturn));
}
for (PRUint32 i = 0; i < nodeCount; ++i) {
result->SnapshotItem(i, getter_AddRefs(node));
NS_ASSERTION(node, "incorrect snapshot length");
rv = domDoc->CreateElementNS(NS_LITERAL_STRING(NS_NAMESPACE_XFORMS),
NS_LITERAL_STRING("item"),
getter_AddRefs(itemNode));
NS_ENSURE_SUCCESS(rv, rv);
anonContent->AppendChild(itemNode, getter_AddRefs(tmpNode));
nsCOMPtr<nsIXFormsContextControl> ctx(do_QueryInterface(itemNode));
if (ctx) {
ctx->SetContext(node, i + 1, nodeCount);
}
// Clone the template content under the item
for (PRUint32 j = 0; j < templateNodeCount; ++j) {
templateNodes->Item(j, getter_AddRefs(templateNode));
templateNode->CloneNode(PR_TRUE, getter_AddRefs(cloneNode));
itemNode->AppendChild(cloneNode, getter_AddRefs(templateNode));
}
}
// refresh parent so that it has a chance to reflect the changes we just made
if (parent) {
nsCOMPtr<nsIXFormsControlBase> control = do_QueryInterface(parent);
if (control) {
control->Refresh();
}
}
return NS_OK;
}