/// <summary>
/// Raised on link handling timer tick, used for:
/// 1. Know when the tooltip is hidden by checking the visibility of the tooltip window.
/// 2. Call HandleMouseMove so the mouse cursor will react if over a link element.
/// 3. Call HandleMouseDown and HandleMouseUp to simulate click on a link if one was clicked.
/// </summary>
protected virtual void OnLinkHandlingTimerTick(EventArgs e)
{
try {
var handle = _tooltipHandle;
if (handle != IntPtr.Zero && Win32Utils.IsWindowVisible(handle))
{
var mPos = Control.MousePosition;
var mButtons = Control.MouseButtons;
var rect = Win32Utils.GetWindowRectangle(handle);
if (rect.Contains(mPos))
{
HtmlContainer.HandleMouseMove(_associatedControl, new MouseEventArgs(mButtons, 0, mPos.X - rect.X, mPos.Y - rect.Y, 0));
}
}
else
{
_linkHandlingTimer.Stop();
_tooltipHandle = IntPtr.Zero;
var mPos = Control.MousePosition;
var mButtons = Control.MouseButtons;
var rect = Win32Utils.GetWindowRectangle(handle);
if (rect.Contains(mPos))
{
if (mButtons == MouseButtons.Left)
{
var args = new MouseEventArgs(mButtons, 1, mPos.X - rect.X, mPos.Y - rect.Y, 0);
HtmlContainer.HandleMouseDown(_associatedControl, args);
HtmlContainer.HandleMouseUp(_associatedControl, args);
}
}
}
} catch (Exception ex) {
OnRenderError(this, new HtmlRenderErrorEventArgs(HtmlRenderErrorType.General, "Error in link handling for tooltip", ex));
}
}
/// <summary>
/// Handle mouse down to handle selection.
/// </summary>
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
_htmlContainer?.HandleMouseDown(this, e);
}