/// <summary>
/// Raises the <see cref="FloatingWindowHost.ActiveWindowChanged" /> event.
/// </summary>
/// <param name="e">The event data.</param>
protected virtual void OnActiveWindowChanged(ActiveWindowChangedEventArgs e)
{
EventHandler <ActiveWindowChangedEventArgs> handler = ActiveWindowChanged;
if (handler != null)
{
handler(this, e);
}
}
/// <summary>
/// Activates the topmost window and sets focus on it.
/// </summary>
public void ActivateTopmostWindow()
{
// First, try to activate a modal window, if exists
var topmostWindow = this.ModalWindow;
if (topmostWindow == null)
{
topmostWindow = GetTopmostWindow();
}
SetFocusToActiveWindow(topmostWindow);
ActiveWindowChangedEventArgs e = new ActiveWindowChangedEventArgs(null, topmostWindow);
OnActiveWindowChanged(e);
}
/// <summary>
/// Sets the specified floating window topmost, and set Focus on it.
/// </summary>
/// <param name="window">FloatingWindow to set topmost.</param>
/// <exception cref="ArgumentNullException">FloatingWindow is null.</exception>
public void SetTopmostWindow(FloatingWindow window)
{
if (window == null)
{
throw new ArgumentNullException("window");
}
FloatingWindow topmostWindow = GetTopmostWindow();
if (topmostWindow == null || window != topmostWindow)
{
SetTopmost(window);
SetFocusToActiveWindow(window);
if (!window.TopMost && !window.IsModal)
{
ShowTopmostWindows();
}
ActiveWindowChangedEventArgs e = new ActiveWindowChangedEventArgs(topmostWindow, window);
OnActiveWindowChanged(e);
}
}
/// <summary>
/// Handles the ActiveWindowChanged event of the Host control.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="SilverFlow.Controls.ActiveWindowChangedEventArgs"/> instance containing the event data.</param>
private void ActiveWindowChanged(object sender, ActiveWindowChangedEventArgs e)
{
if (e.Old == this)
OnDeactivated(EventArgs.Empty);
if (e.New == this)
OnActivated(EventArgs.Empty);
}