public override FocusType GetFocusType(IAccessible accessibleObject, out string url)
{
url = null;
// Walk up tree finding parent
var parent = accessibleObject;
while (parent != null)
{
var role = AccessibleObjectHelper.GetRole(parent);
if (role == AccessibleRole.Text && AccessibleObjectHelper.HasState(accessibleObject, AccessibleStates.Focusable))
{
// Could be the location bar, if the parent is a grouping
if (accessibleObject.accParent is IAccessible immediateParent)
{
if (AccessibleObjectHelper.GetRole(immediateParent) == AccessibleRole.Grouping && (AccessibleStates)immediateParent.accState[0] == AccessibleStates.None)
{
return(FocusType.Location);
}
else
{
if (AccessibleObjectHelper.FindAncestor(immediateParent, AccessibleRole.Dialog) != null)
{
return(FocusType.FindInPage);
}
}
}
}
parent = parent.accParent as IAccessible;
}
return(FocusType.Other);
}
public override FocusType GetFocusType(IAccessible accessibleObject, out string url)
{
url = null;
// Walk up tree finding parent
var parent = accessibleObject;
while (parent != null)
{
var role = AccessibleObjectHelper.GetRole(parent);
if (role == AccessibleRole.ToolBar)
{
// This is on the toolbar, so either location box or search box
if (accessibleObject.accParent is IAccessible immediateParent)
{
if (AccessibleObjectHelper.GetRole(immediateParent) == AccessibleRole.ComboBox)
{
if (AccessibleObjectHelper.HasState(accessibleObject, AccessibleStates.HasPopup))
{
return(FocusType.Location);
}
else
{
return(FocusType.Search);
}
}
else
{
if (parent.accParent is IAccessible propertyPage &&
AccessibleObjectHelper.GetRole(propertyPage) == AccessibleRole.PropertyPage)
{
// Get URL for page
var document = AccessibleObjectHelper.FindChild(AccessibleObjectHelper.FindChild(propertyPage),
role: AccessibleRole.Document);
if (document != null)
{
url = AccessibleObjectHelper.GetValue(document);
}
}
return(FocusType.FindInPage);
}
}
}
else if (role == AccessibleRole.Document && AccessibleObjectHelper.HasState(accessibleObject, AccessibleStates.Focusable))
{
// This is a web page
url = AccessibleObjectHelper.GetValue(parent);
return(FocusType.Page);
}
parent = parent.accParent as IAccessible;
}
return(FocusType.Other);
}
private void OnEventReceived(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
{
if (idObject == GOOGLE_CHROME_ACCESSIBILITY_OBJECT_ID)
{
EventReceived = true;
SendMessage(hwnd, WM_GETOBJECT, 0, idObject);
// Chrome only enables accessibility if it gets a top-level IAccessible request, so let's make one first
var _ = AccessibleObjectHelper.GetAccessibleObjectFromWindow(hwnd).accName;
}
}
public override FocusType GetFocusType(IAccessible accessibleObject, out string url)
{
url = null;
// Walk up tree finding parent
var parent = accessibleObject;
while (parent != null)
{
var role = AccessibleObjectHelper.GetRole(parent);
if (role == AccessibleRole.Document && AccessibleObjectHelper.HasState(accessibleObject, AccessibleStates.Focusable))
{
// This is a web page
url = AccessibleObjectHelper.GetValue(parent);
return(FocusType.Page);
}
parent = parent.accParent as IAccessible;
}
return(FocusType.Other);
}
