void UpdateSelectedItem()
{
if (_hwndPopupList == IntPtr.Zero)
{
Logger.WindowWatcher.Verbose("PopupList UpdateSelectedItem ignored: PopupList is null");
return;
}
if (!IsVisible)
{
if (_selectedItemIndex == -1 &&
SelectedItemText == string.Empty &&
SelectedItemBounds == Rect.Empty)
{
// Don't change anything, or fire an updated event
return;
}
// Set to the way things should be when not visible, and fire an updated event
_selectedItemIndex = -1;
SelectedItemText = string.Empty;
SelectedItemBounds = Rect.Empty;
ListBounds = Rect.Empty;
}
else
{
string text;
Rect itemBounds;
var hwndListView = Win32Helper.GetFirstChildWindow(_hwndPopupList);
ListBounds = Win32Helper.GetWindowBounds(_hwndPopupList);
_selectedItemIndex = Win32Helper.GetListViewSelectedItemInfo(hwndListView, out text, out itemBounds);
if (string.IsNullOrEmpty(text))
{
// We (unexpectedly) failed to get information about the selected item - not sure this is a problem
Logger.WindowWatcher.Info("PopupList UpdateSelectedItem - IsVisible but GetListViewSelectedItemInfo failed ");
_selectedItemIndex = -1;
SelectedItemText = string.Empty;
SelectedItemBounds = Rect.Empty;
ListBounds = Rect.Empty;
}
else
{
// Normal case - all is OK
itemBounds.Offset(ListBounds.Left, ListBounds.Top);
SelectedItemBounds = itemBounds;
SelectedItemText = text;
}
}
OnSelectedItemChanged();
}
// Runs on our automation thread
void _windowWatcher_FormulaEditLocationChanged(object sender, EventArgs e)
{
if (IsVisible && _selectedItemIndex != -1 && _hwndPopupList != IntPtr.Zero)
{
string text;
Rect itemBounds;
var hwndListView = Win32Helper.GetFirstChildWindow(_hwndPopupList);
ListBounds = Win32Helper.GetWindowBounds(_hwndPopupList);
Win32Helper.GetListViewSelectedItemInfo(hwndListView, out text, out itemBounds);
itemBounds.Offset(ListBounds.Left, ListBounds.Top);
SelectedItemBounds = itemBounds;
OnSelectedItemChanged();
}
}
// Runs on our automation thread
void InstallEventHandlers()
{
Logger.WindowWatcher.Verbose(string.Format("PopupList Installing event handlers on thread {0}", Thread.CurrentThread.ManagedThreadId));
try
{
// TODO: Clean up
var hwndListView = Win32Helper.GetFirstChildWindow(_hwndPopupList);
_selectionChangeHook = new WinEventHook(WinEventHook.WinEvent.EVENT_OBJECT_SELECTION, WinEventHook.WinEvent.EVENT_OBJECT_SELECTION, _syncContextAuto, _syncContextMain, hwndListView);
_selectionChangeHook.WinEventReceived += _selectionChangeHook_WinEventReceived;
Logger.WindowWatcher.Verbose("PopupList selection event handler added");
}
catch (Exception ex)
{
// Probably no longer visible
Logger.WindowWatcher.Warn(string.Format("PopupList event handler error {0}", ex));
_hwndPopupList = IntPtr.Zero;
IsVisible = false;
}
}
void UpdateSelectedItem()
{
if (_hwndPopupList == IntPtr.Zero)
{
Logger.WindowWatcher.Verbose($"PopupList UpdateSelectedItem ignored: PopupList is null");
return;
}
if (!IsVisible)
{
if (_selectedItemIndex == -1 &&
SelectedItemText == string.Empty &&
SelectedItemBounds == Rect.Empty)
{
// Don't change anything, or fire an updated event
return;
}
// Set to the way things should be when not visible, and fire an updated event
_selectedItemIndex = -1;
SelectedItemText = string.Empty;
SelectedItemBounds = Rect.Empty;
ListBounds = Rect.Empty;
}
else
{
string text;
Rect itemBounds;
var hwndListView = Win32Helper.GetFirstChildWindow(_hwndPopupList);
ListBounds = Win32Helper.GetWindowBounds(_hwndPopupList);
_selectedItemIndex = Win32Helper.GetListViewSelectedItemInfo(hwndListView, out text, out itemBounds);
itemBounds.Offset(ListBounds.Left, ListBounds.Top);
SelectedItemBounds = itemBounds;
SelectedItemText = text;
}
OnSelectedItemChanged();
}
