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);
}
public static void AddResizeEventListener(this Element self, Action action)
{
DocumentUtil.AddElementResizeListener(self, action);
}