Ejemplo n.º 1
0
        protected TwoPanelsWithResizer(
            Hideability hideable, int minPanelSizePx, Tuple <int?, int?> fixedSize, SpacingPolicy?spacingPolicy)
        {
            MinPanelSizePx = minPanelSizePx;

            if (fixedSize == null && !spacingPolicy.HasValue ||
                fixedSize != null && spacingPolicy.HasValue ||
                fixedSize != null && fixedSize.Item1.HasValue && fixedSize.Item2.HasValue ||
                fixedSize != null && !fixedSize.Item1.HasValue && !fixedSize.Item2.HasValue)
            {
                throw new Exception("Either spacing policy needs to be provided OR exactly one fixedSize dimension");
            }

            Hideable             = hideable;
            _fixedSize           = fixedSize;
            _spacingPolicy       = spacingPolicy;
            _container.ClassName = GetType().FullName;
            _container.Id        = UniqueIdGenerator.GenerateAsString();
            _splitter.ClassName  = Magics.CssClassSplitter;

            _container.AppendChild(FirstPanel);
            _container.AppendChild(_splitter);
            _container.AppendChild(SecondPanel);

            _splitter.OnTouchStart += x => {
                if (!x.HasHtmlTarget())
                {
                    return;
                }

                var htmlTarget = x.HtmlTarget();

                if (!htmlTarget.IsElementOrItsDescendant(_splitter))
                {
                    return;
                }

                _isDragging = true;
                _touchId    = x.TargetTouches[0].Identifier;
                Logger.Debug(GetType(), "TouchStart {0}", _touchId);
            };

            _splitter.OnTouchEnd += ev => {
                _isDragging = false;
                _touchId    = 0;
                Logger.Debug(GetType(), "TouchEnd {0}", _touchId);
            };

            _splitter.OnTouchMove += ev => {
                if (!_isDragging)
                {
                    return;
                }

                var touch = ev.Touches.FirstOrDefault(x => x.Identifier == _touchId);

                Logger.Debug(GetType(), "TouchMove {0} present?={1}", _touchId, touch != null);

                if (touch == null)
                {
                    return;
                }

                var sizes = CalculateSizesOnUserResize(touch.PageX, touch.PageY);

                if (sizes.Item1 < minPanelSizePx || sizes.Item2 < minPanelSizePx)
                {
                    return;
                }
                Logger.Debug(GetType(), "updating sizes for panelType={0} id={1} to ({2}; {3})", GetType().FullName, _container.Id, sizes.Item1, sizes.Item2);

                _container.AddClasses(Magics.CssClassActive);
                ev.PreventDefault();
                Sizes = sizes;
                SetPanelsSize(sizes);
            };

            DocumentUtil.AddMouseDownListener(_splitter, x => {
                if (!x.HasHtmlTarget())
                {
                    return;
                }

                var htmlTarget = x.HtmlTarget();

                if (!htmlTarget.IsElementOrItsDescendant(_splitter))
                {
                    return;
                }

                _isDragging = true;
                x.PreventDefault();
            });

            DocumentUtil.AddMouseUpListener(_splitter, x => {
                _isDragging = false;
            });

            DocumentUtil.AddMouseMoveListener(_splitter, ev => {
                if (!_isDragging)
                {
                    return;
                }
                ev.PreventDefault();

                var sizes = CalculateSizesOnUserResize(ev.PageX, ev.PageY);

                if (sizes.Item1 < minPanelSizePx || sizes.Item2 < minPanelSizePx)
                {
                    return;
                }
                Logger.Debug(GetType(), "updating sizes for panelType={0} id={1} to ({2}; {3})", GetType().FullName, _container.Id, sizes.Item1, sizes.Item2);

                _container.AddClasses(Magics.CssClassActive);

                Sizes = sizes;
                SetPanelsSize(sizes);
            });

            DocumentUtil.AddElementAttachedToDocumentListener(_container, InitializeWidthsOnAttachOrResize);
            DocumentUtil.AddElementResizeListener(_container, InitializeWidthsOnAttachOrResize);
        }
Ejemplo n.º 2
0
 public static void AddResizeEventListener(this Element self, Action action)
 {
     DocumentUtil.AddElementResizeListener(self, action);
 }