Exemplo n.º 1
0
        public override void OnApplyTemplate()
        {
            base.OnApplyTemplate();

            HorizontalAlignment        = System.Windows.HorizontalAlignment.Stretch;
            HorizontalContentAlignment = System.Windows.HorizontalAlignment.Stretch;

            _templateRoot = MoreVisualTreeExtensions.FindFirstChildOfType <Panel>(this);
            if (_templateRoot == null)
            {
                throw new InvalidOperationException("Must include a Panel in the root of the template.");
            }

            if (!_transitionedIn)
            {
                var @in = GetTransitionIn();
                if (@in != null && _templateRoot != null)
                {
                    var transition = @in.GetTransition(_templateRoot);
                    transition.Completed += (x, xe) => transition.Stop();
                    transition.Begin();
                }
                _transitionedIn = true;
            }
        }
Exemplo n.º 2
0
        public override void OnApplyTemplate()
        {
            if (_button != null)
            {
                _button.Click -= OnClick;
            }

            base.OnApplyTemplate();

            _root = MoreVisualTreeExtensions.FindFirstChildOfType <Grid>(this);
            if (null == _root)
            {
                throw new NotSupportedException("Must include a Grid for manipulating.");
            }

            _button = GetTemplateChild("_button") as Button;
            if (_button != null)
            {
                _button.Click += OnClick;
            }

            TransformAnimator.EnsureAnimator(_root, ref _ta);
            OpacityAnimator.EnsureAnimator(_root, ref _oa);
            if (_oa != null)
            {
                _root.Opacity = 0;
                _oa.GoTo(1.0, new Duration(TimeSpan.FromSeconds(.5)));
            }
        }
Exemplo n.º 3
0
        public override void OnApplyTemplate()
        {
            if (_image != null)
            {
                _image.FinalImageAvailable -= OnFinalImageAvailable;
            }

            base.OnApplyTemplate();

            _image = MoreVisualTreeExtensions.FindFirstChildOfType <SmoothImage>(this);
            if (_image != null)
            {
                _image.FinalImageAvailable += OnFinalImageAvailable;
            }

            UpdateMap();
        }
Exemplo n.º 4
0
        public override void OnApplyTemplate()
        {
            _templateApplied = true;
            base.OnApplyTemplate();

            _stack = MoreVisualTreeExtensions.FindFirstChildOfType <Panel>(this);

            if (!_haveItems)
            {
                UpdateItems();
            }

            if (double.IsNaN(MinimumItemHeight) || MinimumItemHeight < 1)
            {
#if DEBUG_GIC
                Debug.WriteLine(""); Debug.WriteLine("<< Developer: You should set the minimum item height for this control. " + Name + ">>"); Debug.WriteLine("");
#endif

                // Just an approximate for initial stack panel population.
                MinimumItemHeight = 50;
            }
        }
Exemplo n.º 5
0
        public override void OnApplyTemplate()
        {
            if (_scrollViewer != null && IsPullToRefreshEnabled)
            {
                _scrollViewer.ManipulationStarted -= OnManipulationStarted;
            }
            if (_top != null)
            {
                _top.MouseLeftButtonDown -= OnJumpToTop;
            }
            if (_bottom != null)
            {
                _bottom.MouseLeftButtonDown -= OnJumpToBottom;
            }

            _ta = null;
            base.OnApplyTemplate();

            if (IsPullToRefreshEnabled)
            {
                SizeChanged += OnSizeChanged;
            }

            _scrollViewer = MoreVisualTreeExtensions.FindFirstChildOfType <ScrollViewer>(this);
            if (null == _scrollViewer)
            {
                return;
                // Must be at design time.
                //throw new NotSupportedException("Control Template must include a ScrollViewer.");
            }

            Dispatcher.BeginInvoke(() =>
            {
                _top    = VisualTreeExtensions.GetVisualDescendants(_scrollViewer).OfType <Rectangle>().Where(b => b.Name == TopJumpName).FirstOrDefault();
                _bottom = VisualTreeExtensions.GetVisualDescendants(_scrollViewer).OfType <Rectangle>().Where(b => b.Name == BottomJumpName).FirstOrDefault();

                if (_top != null)
                {
                    _top.MouseLeftButtonUp += OnJumpToTop;
                }
                if (_bottom != null)
                {
                    _bottom.MouseLeftButtonUp += OnJumpToBottom;
                }
            });

            _header = GetTemplateChild("Header") as ContentPresenter;
            if (_header != null)
            {
                TransformYAnimator.EnsureAnimator(_header, ref _ta);
            }

            if (IsPullToRefreshEnabled)
            {
                _scrollViewer.ManipulationStarted += OnManipulationStarted;
            }

            Dispatcher.BeginInvoke(() =>
            {
                int i         = 0;
                UIElement uie = Parent as UIElement;
                while (i < 8 && uie != null && _piv == null)
                {
                    uie  = VisualTreeHelper.GetParent(uie) as UIElement;
                    _piv = uie as LoadingPivotItem;
                }

                var implroot = VisualTreeHelper.GetChild(_scrollViewer, 0) as FrameworkElement;
                if (implroot != null)
                {
                    VisualStateGroup group = FindVisualState(implroot, "ScrollStates");
                    if (group != null)
                    {
                        group.CurrentStateChanging += OnScrollingStateChanging;
                        // should probably disconnect too
                    }
                }

                this.InvokeOnLayoutUpdated(Bump);
            });
        }