sap.ui.define([
"sap/ui/core/Element"
], function(Element) {
/**
* Class responsible for iterating through the control tree.
* It performs a BFS ordered iteration of the tree, excluding
* the root control itself.
* @class
* @param {sap.ui.core.Element} oRoot The root element.
* @name spet.auth.ControlIterator
*/
return function(oRoot) {
var aQueue = [oRoot],
iAIndex = 0,
iIIndex = 0,
aAggregations;
function updateAggregations() {
var mAggregations = aQueue[0].getMetadata().getAllAggregations();
aAggregations = jQuery.map(mAggregations, function(oV){return oV; });
}
updateAggregations();
/**
* Goes to the next element in the tree.
* @function
* @name spet.auth.ControlIterator#next
* @returns {sap.ui.core.Element|null} Returns the next element
* or null if none exists.
*/
this.next = function() {
var fnInner = function() {
for (; iAIndex < aAggregations.length; ++iAIndex) {
var oContents = aAggregations[iAIndex].get(aQueue[0]),
oInfo;
if (aAggregations[iAIndex].multiple) {
if (oContents && iIIndex < oContents.length) {
return oContents[iIIndex++];
}
else {
oInfo = aQueue[0].getBindingInfo(aAggregations[iAIndex].name);
if (iIIndex === 0 && oInfo && oInfo.template) {
++iIIndex;
return oInfo.template;
}
}
}
else {
if (iIIndex === 0 && oContents) {
++iIIndex;
return oContents;
}
}
iIIndex = 0;
}
return null;
};
do {
var oResult = fnInner();
if (oResult) {
if (oResult instanceof Element) {
aQueue.push(oResult);
return oResult;
}
}
else {
iAIndex = 0;
iIIndex = 0;
aQueue.shift();
if (aQueue.length) {
updateAggregations();
}
}
}while (aQueue.length);
return null;
};
/**
* Removes the element which was previously returned
* by the `next` method.
* @function
* @name spet.auth.ControlIterator#remove
* @returns {void}
*/
this.remove = function() {
var oAggregation = aAggregations[iAIndex],
oInfo;
--iIIndex;
aQueue.pop();
if (oAggregation.multiple) {
oInfo = aQueue[0].getBindingInfo(oAggregation.name);
if (oInfo && oInfo.template) {
aQueue[0].unbindAggregation(oAggregation.name);
}
else {
aAggregations[iAIndex].remove(aQueue[0], iIIndex);
}
}
else {
aAggregations[iAIndex].set(aQueue[0], null);
}
};
};
}, /* bExport = */ false);