Esempio n. 1
0
        public SearchableGroupedList(ObservableList <T> originalItems, Func <string, IComponent> groupedItemHeaderGenerator, params UnitSize[] columns)
        {
            _groupedItemHeaderGenerator = groupedItemHeaderGenerator;
            _searchBox = new SearchBox().Underlined().SetPlaceholder("Type to search").SearchAsYouType().Width(100.px()).Grow();
            _list      = ItemsList(new IComponent[0], columns);

            _groupComparer = StringComparer.OrdinalIgnoreCase;

            Items = new ObservableList <IComponent>();

            _defered =
                Defer(
                    Items,
                    item =>
            {
                var searchTerms   = (_searchBox.Text ?? "").Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                var filteredItems = originalItems.OfType <T>().Where(i => searchTerms.Length == 0 || searchTerms.All(st => i.IsMatch(st))).ToArray();
                AddGroupedItems(filteredItems, _list.Items, isGrid: (columns is object && columns.Length > 1));
                return(_list.Stretch().AsTask());
            }
                    )
                .WidthStretch()
                .Grow();

            originalItems.Observe(_ => _defered.Refresh());

            _searchBox.OnSearch((_, __) => _defered.Refresh());

            _searchBoxContainer           = Stack().Horizontal().WidthStretch().Children(_searchBox).AlignItems(ItemAlign.Center);
            _searchBoxContainerComponents = new List <IComponent> {
                _searchBox
            };
            _stack = Stack().Children(_searchBoxContainer, _defered.Scroll()).WidthStretch().MaxHeight(100.percent());
        }
Esempio n. 2
0
        public SearchableList(ObservableList <T> items, params UnitSize[] columns)
        {
            Items      = items ?? new ObservableList <T>();
            _searchBox = new SearchBox().Underlined().SetPlaceholder("Type to search").SearchAsYouType().Width(100.px()).Grow();
            _list      = ItemsList(new IComponent[0], columns);
            _defered   =
                Defer(
                    Items,
                    item =>
            {
                var searchTerms   = (_searchBox.Text ?? "").Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                var filteredItems = Items.Where(i => searchTerms.Length == 0 || searchTerms.All(st => i.IsMatch(st))).Select(i => i.Render()).ToArray();

                _list.Items.Clear();

                if (filteredItems.Any())
                {
                    _list.Items.AddRange(filteredItems);
                }

                if (filteredItems.Length >= _minimumItemsToShowBox)
                {
                    _searchBox.Show();
                }
                else
                {
                    _searchBox.Collapse();
                }

                return(_list.Stretch().AsTask());
            }
                    )
                .WidthStretch()
                .Grow(1);

            _searchBox.OnSearch((_, __) => _defered.Refresh());
            _searchBoxContainer           = Stack().Horizontal().WidthStretch().Children(_searchBox).AlignItems(ItemAlign.Center);
            _searchBoxContainerComponents = new List <IComponent>()
            {
                _searchBox
            };
            _stack = Stack().Children(_searchBoxContainer, _defered.Scroll()).WidthStretch().MaxHeight(100.percent());
        }