private static void setText(ExtendedTextBox textBox, string text, bool evenIfFocused)
{
if (evenIfFocused || !textBox.IsKeyboardFocused)
{
textBox.SetText(text);
}
}
private static void setTime(ExtendedTextBox textBox, string time, bool evenIfFocused)
{
if (evenIfFocused ||
!textBox.IsKeyboardFocused ||
textBox.Tag == null ||
textBox.Text == (textBox.Tag as string))
{
textBox.SetText(time);
textBox.Tag = time;
}
}
private void initialise()
{
if (DesignerProperties.GetIsInDesignMode(this))
{
return;
}
if (this.textbox != null)
{
throw new Exception("Auto completion popup cannot be initialised more than once.");
}
this.textbox = this.TextBox;
if (this.textbox == null)
{
throw new Exception("Auto completion popup must have a valid text box.");
}
this.textbox.PreviewKeyDown += this.textboxOnPreviewKeyDown;
this.textbox.TextChanged += this.textboxOnTextChanged;
this.textbox.LostKeyboardFocus += (sender, args) =>
{
if (this.textbox.Focusable && this.textbox.IsEnabled)
{
var element = Keyboard.FocusedElement as FrameworkElement;
while (true)
{
if (element == null)
{
break;
}
if (element == this)
{
this.textbox.Focus();
return;
}
element = element.Parent as FrameworkElement;
}
}
this.close();
};
}
private static void setTime(ExtendedTextBox textBox, string time, bool evenIfFocused)
{
if (evenIfFocused
|| !textBox.IsKeyboardFocused
|| textBox.Text == (textBox.Tag as string))
{
textBox.SetText(time);
textBox.Tag = time;
}
}
private static void setText(ExtendedTextBox textBox, string text, bool evenIfFocused)
{
if (evenIfFocused || !textBox.IsKeyboardFocused)
{
textBox.SetText(text);
}
}
private void initialise()
{
if (DesignerProperties.GetIsInDesignMode(this))
{
return;
}
if (this.textbox != null)
{
throw new Exception("Auto completion popup cannot be initialised more than once.");
}
this.textbox = this.TextBox;
if (this.textbox == null)
{
throw new Exception("Auto completion popup must have a valid text box.");
}
this.textbox.PreviewKeyDown += this.textboxOnPreviewKeyDown;
this.textbox.TextChanged += this.textboxOnTextChanged;
this.textbox.LostKeyboardFocus += (sender, args) =>
{
if (this.textbox.Focusable && this.textbox.IsEnabled)
{
var isKeyboardFocusWithin = popup.IsKeyboardFocusWithin;
if (isKeyboardFocusWithin)
{
if (listBox.IsKeyboardFocusWithin)
{
this.textbox.Focus();
}
return;
}
}
this.close();
};
this.popup.LostKeyboardFocus += (sender, args) =>
{
if (!this.textbox.IsKeyboardFocusWithin && !this.popup.IsKeyboardFocusWithin)
{
this.close();
}
};
this.popup.PreviewKeyDown += (sender, args) =>
{
if (args.Key == Key.Tab)
{
if (Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift))
{
this.textbox.Focus();
args.Handled = true;
}
else
{
if (this.textbox.PredictFocus(FocusNavigationDirection.Down) is UIElement nextElement)
{
Keyboard.Focus(nextElement);
args.Handled = true;
}
}
}
else if (args.Key == Key.Down || args.Key == Key.Up || args.Key == Key.Escape)
{
this.textbox.Focus();
args.Handled = true;
}
};
}
private void initialise()
{
if (DesignerProperties.GetIsInDesignMode(this))
return;
if (this.textbox != null)
throw new Exception("Auto completion popup cannot be initialised more than once.");
this.textbox = this.TextBox;
if (this.textbox == null)
throw new Exception("Auto completion popup must have a valid text box.");
this.textbox.PreviewKeyDown += this.textboxOnPreviewKeyDown;
this.textbox.TextChanged += this.textboxOnTextChanged;
this.textbox.LostKeyboardFocus += (sender, args) =>
{
if (this.textbox.Focusable && this.textbox.IsEnabled)
{
var element = Keyboard.FocusedElement as FrameworkElement;
while (true)
{
if (element == null)
break;
if (element == this)
{
this.textbox.Focus();
return;
}
element = element.Parent as FrameworkElement;
}
}
this.close();
};
}
