private void AutoSuggestBox_SuggestionChosen(AutoSuggestBox sender, AutoSuggestBoxSuggestionChosenEventArgs args)
{
AddToken(args.SelectedItem);
sender.Text = string.Empty;
sender.Focus(FocusState.Programmatic);
SuggestionChosen?.Invoke(sender, args);
}
private void ChoseItem(Object o)
{
if (UpdateTextOnSelect)
{
UpdateTextFromSuggestion(o);
}
SuggestionChosen?.Invoke(this, new AutoSuggestBoxSuggestionChosenEventArgs(o));
}
private void OnSuggestionListItemClick(object sender, ItemClickEventArgs e)
{
if (this.Log().IsEnabled(Microsoft.Extensions.Logging.LogLevel.Debug))
{
this.Log().Debug($"Suggestion item clicked {e.ClickedItem}");
}
SuggestionChosen?.Invoke(this, new AutoSuggestBoxSuggestionChosenEventArgs(e.ClickedItem));
IsSuggestionListOpen = false;
}
/// <summary>
/// Initializes a new instance of the <see cref="AutoSuggestBox"/> class
/// </summary>
public AutoSuggestBox()
{
NativeAutoSuggestBox = new NativeAutoSuggestBox(
Android.App.Application.Context
);
NativeAutoSuggestBox.SuggestionChosen += (s, e) => { SuggestionChosen?.Invoke(this, new AutoSuggestBoxSuggestionChosenEventArgs(e.SelectedItem)); };
NativeAutoSuggestBox.TextChanged += (s, e) => {
suppressTextChangedEvent = true;
Text = NativeAutoSuggestBox.Text;
suppressTextChangedEvent = false;
TextChanged?.Invoke(this, new AutoSuggestBoxTextChangedEventArgs((AutoSuggestionBoxTextChangeReason)e.Reason));
};
NativeAutoSuggestBox.QuerySubmitted += (s, e) => QuerySubmitted?.Invoke(this, new AutoSuggestBoxQuerySubmittedEventArgs(e.QueryText, e.ChosenSuggestion));
}
protected override void OnApplyTemplate()
{
_borderElement = base.GetTemplateChild("BorderElement") as Border;
_autoSuggestBox = base.GetTemplateChild("AutoSuggestBox") as AutoSuggestBox;
_displayContent = base.GetTemplateChild("DisplayContent") as Border;
_autoSuggestBox.TextChanged += (s, a) => TextChanged?.Invoke(s, a);
_autoSuggestBox.SuggestionChosen += (s, a) => SuggestionChosen?.Invoke(s, a);
_autoSuggestBox.QuerySubmitted += (s, a) => QuerySubmitted?.Invoke(s, a);
_isInitialized = true;
UpdateMode();
UpdateVisualState();
base.OnApplyTemplate();
}
/// <summary>
/// Initializes a new instance of the <see cref="AutoSuggestBox"/> class
/// </summary>
public AutoSuggestBox()
{
#if !NETSTANDARD2_0
NativeAutoSuggestBox = new NativeAutoSuggestBox(
#if __ANDROID__
Android.App.Application.Context
#endif
);
NativeAutoSuggestBox.SuggestionChosen += (s, e) => { SuggestionChosen?.Invoke(this, new AutoSuggestBoxSuggestionChosenEventArgs(e.SelectedItem)); };
NativeAutoSuggestBox.TextChanged += (s, e) => {
suppressTextChangedEvent = true;
Text = NativeAutoSuggestBox.Text;
suppressTextChangedEvent = false;
TextChanged?.Invoke(this, new AutoSuggestBoxTextChangedEventArgs((AutoSuggestionBoxTextChangeReason)e.Reason));
};
NativeAutoSuggestBox.QuerySubmitted += (s, e) => QuerySubmitted?.Invoke(this, new AutoSuggestBoxQuerySubmittedEventArgs(e.QueryText, e.ChosenSuggestion));
#else
throw new PlatformNotSupportedException();
#endif
}
protected override void OnApplyTemplate()
{
base.OnApplyTemplate();
_container = base.GetTemplateChild("container") as Grid;
_autoSuggestBox = base.GetTemplateChild("autoSuggestBox") as AutoSuggestBox;
_displayText = base.GetTemplateChild("displayText") as TextBlock;
_border = base.GetTemplateChild("border") as Border;
_container.PointerEntered += OnPointerEntered;
_container.PointerExited += OnPointerExited;
_autoSuggestBox.GotFocus += OnGotFocus;
_autoSuggestBox.LostFocus += OnLostFocus;
_autoSuggestBox.TextChanged += (s, a) => TextChanged?.Invoke(s, a);
_autoSuggestBox.SuggestionChosen += (s, a) => SuggestionChosen?.Invoke(s, a);
_autoSuggestBox.QuerySubmitted += (s, a) => QuerySubmitted?.Invoke(s, a);
UpdateMode();
}
private void OnSuggestionsListSelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (m_ignoreSelectionChange)
{
return;
}
if (IsSuggestionListOpen)
{
var selectedItem = m_suggestionsList.SelectedItem;
if (selectedItem != null)
{
m_suggestionsList.ScrollIntoView(selectedItem);
SuggestionChosen?.Invoke(this, new AutoSuggestBoxSuggestionChosenEventArgs {
SelectedItem = selectedItem
});
if (UpdateTextOnSelect)
{
var selectedValue = m_suggestionsList.SelectedValue;
if (selectedValue != null)
{
UpdateTextValue(selectedValue.ToString(), AutoSuggestionBoxTextChangeReason.SuggestionChosen);
}
}
}
else
{
m_suggestionsList.ScrollToTop();
UpdateTextValue(m_searchText);
}
if (m_textBox != null)
{
m_textBox.CaretIndex = m_textBox.Text.Length;
}
}
}
internal void RaiseSuggestionChosen(object selectedItem)
{
SuggestionChosen?.Invoke(this, new AutoSuggestBoxSuggestionChosenEventArgs(selectedItem));
}
internal void RaiseSuggestionChosen(object selectedItem)
{
SuggestionChosen?.Invoke(this, new AutoCompleteViewEventArgs(selectedItem));
}
internal void RaiseSuggestionChosen(AutoSuggestBox sender, AutoSuggestBoxSuggestionChosenEventArgs args)
{
SuggestionChosen?.Invoke(sender, args);
}
public void FireSuggestionChosen(AutoSuggestBoxSuggestionChosenEventArgs args)
{
SuggestionChosen?.Invoke(this, args);
}
private void AutoSuggestBox_SuggestionChosen(AutoSuggestBox sender, AutoSuggestBoxSuggestionChosenEventArgs args)
{
SuggestionChosen?.Invoke(sender, args);
}
internal async Task CommitSuggestionAsync(object selectedItem)
{
var currentQuery = _currentQuery;
var range = currentQuery?.Range.GetClone();
var id = Guid.NewGuid();
var prefix = currentQuery?.Prefix;
var query = currentQuery?.QueryText;
// range has length of 0 at the end of the commit.
// Checking length == 0 to avoid committing twice.
if (prefix == null || query == null || range == null || range.Length == 0)
{
return;
}
var textBefore = range.Text;
var format = CreateTokenFormat(range);
var eventArgs = new SuggestionChosenEventArgs
{
Id = id,
Prefix = prefix,
QueryText = query,
SelectedItem = selectedItem,
DisplayText = query,
Format = format
};
if (SuggestionChosen != null)
{
await SuggestionChosen.InvokeAsync(this, eventArgs);
}
var text = eventArgs.DisplayText;
// Since this operation is async, the document may have changed at this point.
// Double check if the range still has the expected query.
if (string.IsNullOrEmpty(text) || textBefore != range.Text ||
!TryExtractQueryFromRange(range, out var testPrefix, out var testQuery) ||
testPrefix != prefix || testQuery != query)
{
return;
}
var displayText = prefix + text;
void RealizeToken()
{
if (TryCommitSuggestionIntoDocument(range, displayText, id, eventArgs.Format ?? format, true))
{
var token = new RichSuggestToken(id, displayText)
{
Active = true, Item = selectedItem
};
token.UpdateTextRange(range);
_tokens.Add(range.Link, token);
}
}
lock (_tokensLock)
{
this.CreateSingleEdit(RealizeToken);
}
}
