/// <summary>
/// Function that retrieves the Automation element in which we want to act.
/// </summary>
/// <param name="curNode">The current node of the tree in which we start.</param>
/// <param name="relPath">The relative path at the starting point.</param>
/// <param name="dstPath">The destination path we want to reach.</param>
/// <returns>Either and error or the Node that was being looking for.</returns>
public static Either <WalkerError, AutomationElement> walkTree(AutomationElement curNode
, List <VTreeNode> relPath
, List <Either <STreeNode, CTreeNode> > dstPath)
{
var iniState = new WState {
relPath = new List <VTreeNode>(relPath)
, destPath = new List <Either <STreeNode, CTreeNode> >(dstPath)
, curAutNode = curNode
};
var fState = whileS(walkNode, checkState, iniState);
var res = fState.Match <Either <WalkerError, AutomationElement> >(
Left: (wstate) =>
{
return(wstate.curAutNode);
},
Right: (werror) =>
{
return(werror);
}
);
return(res);
}
/// <summary>
/// Make a step throught the UI Automation Tree
/// </summary>
/// <param name="curState">
/// State to be computed and actualized.
/// </param>
/// <returns>
/// Either a new state or a error.
/// </returns>
public static Either <WState, WalkerError> walkNode(WState curState)
{
if (!curState.destPath.Any())
{
var error =
new WalkerError {
nodeError =
new NodeError {
errCode = NodeErrCode.WrongMove
, descr = "No destination path."
}
, errorPath = curState.relPath
};
}
var curAutNode = curState.curAutNode;
var curDestPath = curState.destPath;
var curRelPath = curState.relPath;
// Update variables for current iteration.
var nextNode = curDestPath.First();
curRelPath.Add(new VTreeNode {
name = curAutNode.Current.Name
});
Either <NodeError, AutomationElement> procNodeRes =
nextNode.Match <Either <NodeError, AutomationElement> >(
Left: (sNode) =>
{
var nNode = makeMove(sNode, curAutNode);
var nextMoveRes = nNode.Match <Either <NodeError, AutomationElement> >(
Left: (nodeError) =>
{
return(nodeError);
},
Right: (nxtNode) =>
{
return(nxtNode);
}
);
return(nextMoveRes);
},
Right: (cNode) =>
{
var t = new TaskCompletionSource <Option <WalkerError> >();
var lScope = cNode.postActionEvents.Item2.scope;
var eventType = cNode.postActionEvents.Item2.changeType;
var property = cNode.postActionEvents.Item1;
var tP = addSyncPropertyEventWatcher(curAutNode, TreeScope.Children, property);
var tS = addSyncStructureEventWatcher(curAutNode, lScope, eventType);
// Return not used, need to refactor this
var inkRes = invkNodeAction(cNode, curAutNode);
var cRes = inkRes.Match <Either <NodeError, AutomationElement> >(
Some: (nodeError) =>
{
return(nodeError);
},
None: () =>
{
var pChangeRes = tP.Result;
if (pChangeRes == None)
{
var sChangeRes = tS.Result;
if (sChangeRes == None)
{
var nNode = makeMove(cNode.sNode, curAutNode);
var nextMoveRes =
nNode.Match <Either <NodeError, AutomationElement> >(
Left: (_nodeError) =>
{
return(_nodeError);
},
Right: (_nxtNode) =>
{
return(_nxtNode);
}
);
return(nextMoveRes);
}
else
{
return(new NodeError {
errCode = NodeErrCode.InvalidOp
, descr = "Structure Change Error"
});
}
}
else
{
return(new NodeError {
errCode = NodeErrCode.InvalidOp
, descr = "Property Change Error"
});
}
}
);
var resVal = cRes.Match <Either <NodeError, AutomationElement> >(
Left: (nError) =>
{
return(nError);
},
Right: (autElem) =>
{
return(autElem);
}
);
return(resVal);
}
);
var itRes = procNodeRes.Match <Either <WalkerError, AutomationElement> >(
Left: (nodeError) =>
{
return(new WalkerError {
nodeError = nodeError, errorPath = curRelPath
});
},
Right: (autNode) =>
{
return(autNode);
}
);
var fRes = itRes.Match <Either <WState, WalkerError> >(
Left: (walkerError) =>
{
return(walkerError);
},
Right: (autElem) =>
{
curDestPath = updatePath(curDestPath);
return(new WState {
relPath = curRelPath
, destPath = curDestPath
, curAutNode = curAutNode
});
}
);
return(fRes);
}
