public static AccessibleTreeItem GetComponentTree(IntPtr hWnd, out Int32 vmID)
{
screenContents.Clear();
screenContentsString = string.Empty;
AccessibleTreeItem accessibleTreeItem = new AccessibleTreeItem();
vmID = 0;
if (JabApi.isJavaWindow(hWnd) == 1)
{
unsafe
{
IntPtr acPtr;
if (JabApi.getAccessibleContextFromHWND(hWnd, out vmID, out acPtr))
{
AccessibleContextInfo ac = new AccessibleContextInfo();
accessibleTreeItem = GetAccessibleContextInfo(vmID, acPtr, out ac, null, 0, string.Empty); // RECURSION SEED
return(accessibleTreeItem);
}
}
}
return(null);
}
private static AccessibleTreeItem BuildAccessibleTree(AccessibleContextInfo acInfo, AccessibleTreeItem parentItem)
{
if (!ReferenceEquals(acInfo, null))
{
AccessibleTreeItem item = new AccessibleTreeItem(acInfo);
if (!ReferenceEquals(parentItem, null))
{
screenContents.Add(item);
parentItem.children.Add(item);
}
return(item);
}
return(null);
}
public static AccessibleTreeItem Find(AccessibleTreeItem node, string name)
{
if (node == null)
{
return(null);
}
if (node.name == name)
{
return(node);
}
foreach (var child in node.children)
{
var found = Find(child, name);
if (found != null)
{
return(found);
}
}
return(null);
}
private static AccessibleTreeItem GetAccessibleContextInfo(Int32 vmID, IntPtr currentPtr, out AccessibleContextInfo currentContext, AccessibleTreeItem parentItem, int level, string lineage)
{
unsafe
{
// Allocate global memory space for the size of AccessibleContextInfo and store the address in acPtr
IntPtr acPtr = Marshal.AllocHGlobal(Marshal.SizeOf(new AccessibleContextInfo()));
try
{
Marshal.StructureToPtr(new AccessibleContextInfo(), acPtr, true);
if (JabApi.getAccessibleContextInfo(vmID, currentPtr, acPtr))
{
currentContext = (AccessibleContextInfo)Marshal.PtrToStructure(acPtr, typeof(AccessibleContextInfo));
if (!ReferenceEquals(currentContext, null))
{
AccessibleTreeItem newItem = BuildAccessibleTree(currentContext, parentItem);
if (!ReferenceEquals(newItem, null))
{
//Checks to see if current object has any text items.
if (currentContext.accessibleText == true)
{
AccessibleTextItemsInfo textItem;
//Gets text items.
textItem = GetAccessibleTextInfo(vmID, currentPtr);
newItem.textValue = textItem.sentence;
string treeInfo = Repeat("\t", level) + currentContext.name + " = \"" + textItem.sentence + "\"";
screenContentsString += treeInfo + Environment.NewLine;
Debug.Print(treeInfo);
}
else
{
string treeInfo = Repeat("\t", level) + currentContext.name;
screenContentsString += treeInfo + Environment.NewLine;
Debug.Print(treeInfo);
}
//Start collecting children
int nextLevel = level + 1;
for (int i = 0; i < currentContext.childrenCount; i++)
{
string lineageInfo = Repeat("\t", level) + level.ToString() + " Child " + i.ToString() + " Lineage = {" + lineage + "}";
screenContentsString += lineageInfo + Environment.NewLine;
Debug.Print(lineageInfo);
string currentlineage;
if (lineage == string.Empty)
{
currentlineage = i.ToString();
}
else
{
currentlineage = lineage + ", " + i.ToString();
}
if (currentContext.role_en_US != "unknown" && currentContext.states_en_US.Contains("visible")) // Note the optomization here, I found this get me to an acceptable speed
{
AccessibleContextInfo childContext = new AccessibleContextInfo();
IntPtr childPtr = JabApi.getAccessibleChildFromContext(vmID, currentPtr, i);
GetAccessibleContextInfo(vmID, childPtr, out childContext, newItem, nextLevel, currentlineage);
//TODO: Not sure when or where to release the java objects, the JVM will leak memory until released
//JabApi.releaseJavaObject(vmID, childPtr);
}
}
}
return(newItem);
}
}
else
{
currentContext = new AccessibleContextInfo();
}
}
finally
{
if (acPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(acPtr);
}
//TODO: Not sure when or where to release the java objects, the JVM will leak memory until released
//JabApi.releaseJavaObject(vmID, currentPtr);
}
}
return(null);
}
