Example #1
0
		internal void FocusItem(ListBoxItem item)
		{
			if (item != null) {
				focusedItem = item;
				if (!item.IsFocused)
					item.Focus ();
			}
		}
Example #2
0
		internal virtual void NotifyListItemLoaded (ListBoxItem listBoxItem)
		{
			if (ItemContainerGenerator.ItemFromContainer (listBoxItem) == SelectedItem) {
				listBoxItem.IsSelected = true;
				listBoxItem.Focus ();
			}
		}
Example #3
0
        private void MakeSingleSelection(ListBoxItem listItem)
        {
            if (ItemsControlFromItemContainer(listItem) == this)
            {
                ItemInfo info = ItemInfoFromContainer(listItem);

                SelectionChange.SelectJustThisItem(info, true /* assumeInItemsCollection */);

                listItem.Focus();

                UpdateAnchorAndActionItem(info);
            }
        }
Example #4
0
		public void Focusable ()
		{
			bool loaded = false;
			ListBoxItem item = new ListBoxItem { Content = "Hello World" };
			item.Loaded += delegate { loaded = true; };

			ListBox box = new ListBox ();
			box.Items.Add (item);
			TestPanel.Children.Add (box);

			EnqueueConditional (() => loaded);
			Enqueue (() => {
				Assert.IsTrue (item.Focus (), "#1");
				box.SelectedItem = item;
				box.SelectedItem = null;
				Assert.IsTrue (item.Focus (), "#2");
			});
			EnqueueTestComplete ();
		}
Example #5
0
        protected override void OnKeyDown(KeyEventArgs e)
        {
            if (!e.Handled)
            {
                bool handled         = false;
                int  newFocusedIndex = -1;
                switch (e.Key)
                {
                case Key.Space:
                case Key.Enter:
                    if ((Key.Enter != e.Key) || KeyboardNavigation.GetAcceptsReturn(this))
                    {
                        if (ModifierKeys.Alt != (Keyboard.Modifiers & (ModifierKeys.Control | ModifierKeys.Alt)))
                        {
                            // KeyEventArgs.OriginalSource (used by WPF) isn't available in Silverlight; use FocusManager.GetFocusedElement instead
                            ListBoxItem listBoxItem = FocusManager.GetFocusedElement() as ListBoxItem;
                            if (null != listBoxItem)
                            {
                                if ((ModifierKeys.Control == (Keyboard.Modifiers & ModifierKeys.Control)) && listBoxItem.IsSelected)
                                {
                                    SelectedItem = null;
                                }
                                else
                                {
                                    SelectedItem = ItemContainerGenerator.ItemFromContainer(listBoxItem);
                                }
                                handled = true;
                            }
                        }
                    }
                    break;

                case Key.Home:
                    newFocusedIndex = 0;
                    break;

                case Key.End:
                    newFocusedIndex = Items.Count - 1;
                    break;

                case Key.PageUp:
                    newFocusedIndex = NavigateByPage(false);
                    break;

                case Key.PageDown:
                    newFocusedIndex = NavigateByPage(true);
                    break;

                case Key.Left:
                    if (IsVerticalOrientation())
                    {
                        ElementScrollViewerScrollInDirection(Key.Left);
                    }
                    else
                    {
                        newFocusedIndex = _focusedIndex - 1;
                    }
                    break;

                case Key.Up:
                    if (IsVerticalOrientation())
                    {
                        newFocusedIndex = _focusedIndex - 1;
                    }
                    else
                    {
                        ElementScrollViewerScrollInDirection(Key.Up);
                    }
                    break;

                case Key.Right:
                    if (IsVerticalOrientation())
                    {
                        ElementScrollViewerScrollInDirection(Key.Right);
                    }
                    else
                    {
                        newFocusedIndex = _focusedIndex + 1;
                    }
                    break;

                case Key.Down:
                    if (IsVerticalOrientation())
                    {
                        newFocusedIndex = _focusedIndex + 1;
                    }
                    else
                    {
                        ElementScrollViewerScrollInDirection(Key.Down);
                    }
                    break;

                // case Key.Divide:  // Feature only used by SelectionMode.Extended
                // case Key.Oem2:  // Key not supported by Silverlight
                //    break;
                // case Key.Oem5:  // Key not supported by Silverlight
                //     break;
                default:
                    Debug.Assert(!handled);
                    break;
                }
                if ((-1 != newFocusedIndex) &&
                    (-1 != _focusedIndex) &&
                    (newFocusedIndex != _focusedIndex) &&
                    (0 <= newFocusedIndex) &&
                    (newFocusedIndex < Items.Count))
                {
                    // A key press will change the focused ListBoxItem
                    ListBoxItem listBoxItem = (ListBoxItem)ItemContainerGenerator.ContainerFromIndex(newFocusedIndex);
                    Debug.Assert(null != listBoxItem);
                    ScrollIntoView(ItemContainerGenerator.ItemFromContainer(listBoxItem));
                    if ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
                    {
                        listBoxItem.Focus();
                    }
                    else
                    {
                        SelectedItem = ItemContainerGenerator.ItemFromContainer(listBoxItem);
                    }
                    handled = true;
                }
                if (handled)
                {
                    e.Handled = true;
                }
            }
        }
Example #6
0
        private void MakeSingleSelection(ListBoxItem listItem)
        {
            if (ItemsControlFromItemContainer(listItem) == this) 
            {
                object item = ItemContainerGenerator.ItemFromContainer(listItem); 
 
                SelectionChange.SelectJustThisItem(item, true /* assumeInItemsCollection */);
 
                listItem.Focus();

                UpdateAnchorAndActionItem(listItem);
            } 
        }