/// <summary>
/// Removes a tag from the collection
/// </summary>
internal void RemoveTag(TokenizedTagItem tag, bool cancelEvent = false)
{
if (this.ItemsSource != null)
{
((IList)this.ItemsSource).Remove(tag); // assume IList for convenience
this.Items.Refresh();
//UpdateAllTagsProperty();
if (TagRemoved != null && !cancelEvent)
{
TagRemoved(this, new TokenizedTagEventArgs(tag));
}
// select the last item
if (this.SelectedItem == null && this.Items.Count > 0)
{
//TokenizedTagItem itemToSelect = this.Items.GetItemAt(0) as TokenizedTagItem;
TokenizedTagItem itemToSelect = Items.GetItemAt(Items.Count - 1) as TokenizedTagItem;
if (!object.ReferenceEquals(itemToSelect, null))
{
RaiseTagClick(itemToSelect);
if (this.IsSelectable)
{
this.SelectedItem = itemToSelect;
}
}
//this.SelectedItem = this.Items.CurrentItem;
}
}
}
/// <summary>
/// Adds a tag to the collection
/// </summary>
internal void AddTag(TokenizedTagItem tag)
{
TokenizedTagItem itemToSelect = null;
if (this.SelectedItem == null && this.Items.Count > 0)
{
itemToSelect = (TokenizedTagItem)this.SelectedItem;
}
((IList)this.ItemsSource).Add(tag); // assume IList for convenience
this.Items.Refresh();
// select the previous item
if (!object.ReferenceEquals(itemToSelect, null))
{
// && !object.ReferenceEquals(TagApplied, null)
//TagApplied.Invoke(this, new TokenizedTagEventArgs(appliedTag));
RaiseTagClick(itemToSelect);
if (this.IsSelectable)
{
this.SelectedItem = itemToSelect;
}
}
// update values
//UpdateAllTagsProperty();
TagAdded?.Invoke(this, new TokenizedTagEventArgs(tag));
}
/// <summary>
/// Raises the TagDoubleClick event
/// </summary>
internal void RaiseTagDoubleClick(TokenizedTagItem tag)
{
//if (this.IsSelectable)
// this.SelectedItem = tag;
UpdateAllTagsProperty();
tag.IsEditing = true;
}
/// <summary>
/// Raises the TagClick event
/// </summary>
internal void RaiseTagApplied(TokenizedTagItem tag)
{
/*
* if (this.IsSelectable)
* this.SelectedItem = tag;
*/
TagApplied?.Invoke(this, new TokenizedTagEventArgs(tag));
}
/// <summary>
/// Raises the TagClick event
/// </summary>
internal void RaiseTagApplied(TokenizedTagItem tag)
{
/*
* if (this.IsSelectable)
* this.SelectedItem = tag;
*/
if (this.TagApplied != null)
{
TagApplied(this, new TokenizedTagEventArgs(tag));
}
}
internal TokenizedTagItem InitializeNewTag(bool suppressEditing = false)
{
var newItem = new TokenizedTagItem()
{
IsEditing = !suppressEditing
};
AddTag(newItem);
UpdateAllTagsProperty();
this.IsEditing = !suppressEditing;
return(newItem);
}
public void OnApplyTemplate(TokenizedTagItem appliedTag = null)
{
Button createBtn = this.GetTemplateChild("PART_CreateTagButton") as Button;
if (createBtn != null)
{
createBtn.Click -= createBtn_Click;
createBtn.Click += createBtn_Click;
//createBtn.Focus();
// nixin - focuses
//createBtn_Click(createBtn, null);
}
base.OnApplyTemplate();
if (appliedTag != null && !object.ReferenceEquals(TagApplied, null))
{
TagApplied.Invoke(this, new TokenizedTagEventArgs(appliedTag));
}
}
void TokenizedTagControl_LostKeyboardFocus(object sender, System.Windows.Input.KeyboardFocusChangedEventArgs e)
{
if (!IsSelectable)
{
this.SelectedItem = null;
return;
}
TokenizedTagItem itemToSelect = null;
if (this.Items.Count > 0 && !object.ReferenceEquals((TokenizedTagItem)this.Items.CurrentItem, null))
{
if (this.SelectedItem != null && ((TokenizedTagItem)this.SelectedItem).Text != null &&
!((TokenizedTagItem)this.SelectedItem).IsEditing)
{
itemToSelect = (TokenizedTagItem)this.SelectedItem;
}
else if (!String.IsNullOrWhiteSpace(((TokenizedTagItem)this.Items.CurrentItem).Text))
{
itemToSelect = (TokenizedTagItem)this.Items.CurrentItem;
}
}
// select the previous item
if (!object.ReferenceEquals(itemToSelect, null))
{
e.Handled = true;
RaiseTagApplied(itemToSelect);
if (this.IsSelectable)
{
this.SelectedItem = itemToSelect;
//itemToSelect.Focus();
}
}
//RaiseTagClick(itemToSelect);
}
public TokenizedTagEventArgs(TokenizedTagItem item)
{
this.Item = item;
}