public void EditingEnded (UITextField textField)
{
NSIndexPath indexPath = IndexPathForView (textField);
if (indexPath.Row > 0) {
// Edit the item in place.
ListItem item = List[indexPath.Row - 1];
// If the contents of the text field at the end of editing is the same as it started, don't trigger an update.
if (item.Text != textField.Text) {
item.Text = textField.Text;
TriggerNewDataForWidget ();
// Notify the document of a change.
document.UpdateChangeCount (UIDocumentChangeKind.Done);
}
} else if (textField.Text.Length > 0) {
// Adds the item to the top of the list.
ListItem item = new ListItem (textField.Text);
int insertedIndex = List.InsertItem (item);
// Update the edit row to show the check box.
ListItemCell itemCell = (ListItemCell)TableView.CellAt (indexPath);
itemCell.CheckBox.Hidden = false;
// Insert a new add item row into the table view.
TableView.BeginUpdates ();
NSIndexPath targetIndexPath = NSIndexPath.FromRowSection (insertedIndex, 0);
TableView.InsertRows (new NSIndexPath[] { targetIndexPath }, UITableViewRowAnimation.Automatic);
TableView.EndUpdates ();
TriggerNewDataForWidget ();
// Notify the document of a change.
document.UpdateChangeCount (UIDocumentChangeKind.Done);
}
}
public int IndexOfItem(ListItem item)
{
return items.IndexOf (item);
}
void ConfigureListItemCell(CheckBoxCell itemCell, ListColor color, ListItem item)
{
itemCell.CheckBox.TintColor = AppColors.ColorFrom(color);
itemCell.CheckBox.Checked = item.IsComplete;
itemCell.Label.Text = item.Text;
itemCell.Label.TextColor = UIColor.White;
// Configure a completed list item cell.
if (item.IsComplete)
itemCell.Label.TextColor = UIColor.LightGray;
}
public ListOperationInfo MoveItem(ListItem item, int toIndex)
{
int fromIndex = items.IndexOf (item);
if (fromIndex == -1)
throw new InvalidProgramException ("Moving an item that isn't in the list is undefined.");
items.RemoveAt (fromIndex);
int normalizedToIndex = toIndex;
if (fromIndex < toIndex)
normalizedToIndex--;
items.Insert (normalizedToIndex, item);
var moveInfo = new ListOperationInfo {
FromIndex = fromIndex,
ToIndex = normalizedToIndex
};
return moveInfo;
}
// Toggles an item's completion state and moves the item to the appropriate index. The normalized from/to indexes are returned in the ListOperationInfo struct.
public ListOperationInfo ToggleItem(ListItem item, int preferredDestinationIndex)
{
int fromIndex = items.IndexOf (item);
if (fromIndex == -1)
throw new InvalidProgramException ("Toggling an item that isn't in the list is undefined.");
items.RemoveAt (fromIndex);
item.IsComplete = !item.IsComplete;
int toIndex = preferredDestinationIndex;
if (toIndex == -1)
toIndex = item.IsComplete ? Count : IndexOfFirstCompletedItem();
items.Insert (toIndex, item);
var toggleInfo = new ListOperationInfo {
FromIndex = fromIndex,
ToIndex = toIndex
};
return toggleInfo;
}
public bool CanMoveItem(ListItem item, int index, bool inclusive)
{
int fromIndex = items.IndexOf (item);
if (fromIndex == -1)
return false;
if (item.IsComplete)
return index <= Count && index >= IndexOfFirstCompletedItem ();
else if (inclusive)
return index >= 0 && index <= IndexOfFirstCompletedItem ();
else
return index >= 0 && index < IndexOfFirstCompletedItem ();
}
public int InsertItem(ListItem item)
{
if (item.IsComplete) {
items.Add (item);
return items.Count - 1;
} else {
items.Insert (0, item);
return 0;
}
}
public void InsertItem(ListItem item, int index)
{
items.Insert (index, item);
}
public int IndexOfItem(ListItem item)
{
return(items.IndexOf(item));
}
public void InsertItem(ListItem item, int index)
{
items.Insert(index, item);
}
