private ImmutableArray <AsyncCompletionData.CompletionFilter> GetFilters(RoslynCompletionItem item)
{
var listBuilder = new ArrayBuilder <AsyncCompletionData.CompletionFilter>();
foreach (var filter in CompletionItemFilter.AllFilters)
{
if (filter.Matches(item))
{
if (!s_filterCache.TryGetValue(filter.DisplayText, out var itemFilter))
{
var imageId = filter.Tags.GetFirstGlyph().GetImageId();
itemFilter = new AsyncCompletionData.CompletionFilter(
filter.DisplayText,
filter.AccessKey.ToString(),
new ImageElement(new ImageId(imageId.Guid, imageId.Id), EditorFeaturesResources.Filter_image_element));
s_filterCache[filter.DisplayText] = itemFilter;
}
listBuilder.Add(itemFilter);
}
}
return(listBuilder.ToImmutableAndFree());
}
/// <summary>
/// Constructs a new instance of <see cref="CompletionFilterWithState"/> when selected state is known.
/// </summary>
/// <param name="filter">Reference to <see cref="CompletionFilter"/></param>
/// <param name="isAvailable">Whether this <see cref="CompletionFilter"/> is available</param>
/// <param name="isSelected">Whether this <see cref="CompletionFilter"/> is selected</param>
public CompletionFilterWithState(CompletionFilter filter, bool isAvailable, bool isSelected)
{
Filter = filter ?? throw new ArgumentNullException(nameof(filter));
IsAvailable = isAvailable;
IsSelected = isSelected;
}
/// <summary>
/// Constructs a new instance of <see cref="CompletionFilterWithState"/> which is not selected.
/// </summary>
/// <param name="filter">Reference to <see cref="CompletionFilter"/></param>
/// <param name="isAvailable">Whether this <see cref="CompletionFilter"/> is available</param>
public CompletionFilterWithState(CompletionFilter filter, bool isAvailable)
: this(filter, isAvailable, isSelected : false)
{
}