protected virtual void SetDisplayMode(NavigationViewDisplayModes mode)
{
this.Collapse();
this.displayMode = mode;
mode = this.GetEffectiveDisplayMode((float)this.Size.Width);
this.EnsureDisplayMode(mode);
}
public virtual void Collapse()
{
if (this.IsCollapsed)
{
return;
}
CancelEventArgs e = new CancelEventArgs();
this.OnCollapsing(e);
if (e.Cancel)
{
return;
}
this.IsCollapsed = true;
foreach (LightVisualElement lightVisualElement in (IEnumerable <RadPageViewItem>) this.Items)
{
lightVisualElement.DrawText = false;
}
NavigationViewDisplayModes effectiveDisplayMode = this.GetEffectiveDisplayMode((float)this.Size.Width);
if (effectiveDisplayMode == NavigationViewDisplayModes.Expanded)
{
if (this.AllowAnimation)
{
Size size1 = new Size(TelerikDpiHelper.ScaleInt(this.ExpandedPaneWidth, new SizeF(1f / this.DpiScaleFactor.Width, 0.0f)), 0);
Size size2 = new Size(TelerikDpiHelper.ScaleInt(this.CollapsedPaneWidth, new SizeF(1f / this.DpiScaleFactor.Width, 0.0f)), 0);
AnimatedPropertySetting animatedPropertySetting = new AnimatedPropertySetting(RadElement.MinSizeProperty, (object)size1, (object)size2, this.AnimationFrames, this.AnimationInterval);
animatedPropertySetting.AnimationFinished += (AnimationFinishedEventHandler)((param0, param1) => this.OnCollapsed(EventArgs.Empty));
animatedPropertySetting.ApplyValue((RadObject)this.ItemContainer);
}
else
{
this.ItemContainer.MinSize = new Size(TelerikDpiHelper.ScaleInt(this.CollapsedPaneWidth, new SizeF(1f / this.DpiScaleFactor.Width, 0.0f)), 0);
this.OnCollapsed(EventArgs.Empty);
}
}
else
{
this.programmaticallyClosingPopup = true;
this.Popup.ClosePopup(RadPopupCloseReason.Mouse);
this.HamburgerButton.StretchHorizontally = false;
this.programmaticallyClosingPopup = false;
if (effectiveDisplayMode == NavigationViewDisplayModes.Compact)
{
this.ItemContainer.MinSize = new Size(TelerikDpiHelper.ScaleInt(this.CollapsedPaneWidth, new SizeF(1f / this.DpiScaleFactor.Width, 0.0f)), 0);
this.ItemContainer.MaxSize = new Size(TelerikDpiHelper.ScaleInt(this.CollapsedPaneWidth, new SizeF(1f / this.DpiScaleFactor.Width, 0.0f)), 0);
if (!this.Children.Contains((RadElement)this.ItemContainer))
{
int num = (int)this.Popup.RootElement.ResetValue(VisualElement.BackColorProperty, ValueResetFlags.Local);
this.Children.Insert(0, (RadElement)this.ItemContainer);
}
}
if (!this.Children.Contains((RadElement)this.HamburgerButton))
{
int num = (int)this.HamburgerButton.ResetValue(RadElement.AlignmentProperty, ValueResetFlags.Local);
this.Children.Add((RadElement)this.HamburgerButton);
}
this.OnCollapsed(EventArgs.Empty);
}
}
protected virtual void EnsureDisplayMode(NavigationViewDisplayModes mode)
{
switch (mode)
{
case NavigationViewDisplayModes.Minimal:
this.ItemContainer.MaxSize = Size.Empty;
this.HamburgerButton.StretchHorizontally = false;
if (!this.PopupStack.Children.Contains((RadElement)this.ItemContainer))
{
this.PopupStack.Children.Add((RadElement)this.ItemContainer);
}
if (this.Children.Contains((RadElement)this.HamburgerButton))
{
break;
}
this.Children.Add((RadElement)this.HamburgerButton);
break;
case NavigationViewDisplayModes.Compact:
foreach (LightVisualElement lightVisualElement in (IEnumerable <RadPageViewItem>) this.Items)
{
lightVisualElement.DrawText = false;
}
this.HamburgerButton.StretchHorizontally = false;
this.ItemContainer.MinSize = new Size(TelerikDpiHelper.ScaleInt(this.CollapsedPaneWidth, new SizeF(1f / this.DpiScaleFactor.Width, 0.0f)), 0);
this.ItemContainer.MaxSize = new Size(TelerikDpiHelper.ScaleInt(this.CollapsedPaneWidth, new SizeF(1f / this.DpiScaleFactor.Width, 0.0f)), 0);
if (!this.Children.Contains((RadElement)this.ItemContainer))
{
this.Children.Insert(0, (RadElement)this.ItemContainer);
}
if (this.Children.Contains((RadElement)this.HamburgerButton))
{
break;
}
this.Children.Add((RadElement)this.HamburgerButton);
break;
case NavigationViewDisplayModes.Expanded:
foreach (LightVisualElement lightVisualElement in (IEnumerable <RadPageViewItem>) this.Items)
{
lightVisualElement.DrawText = !this.IsCollapsed;
}
this.ItemContainer.MaxSize = Size.Empty;
this.HamburgerButton.StretchHorizontally = true;
if (!this.Children.Contains((RadElement)this.ItemContainer))
{
this.Children.Insert(0, (RadElement)this.ItemContainer);
}
if (this.Children.Contains((RadElement)this.ItemContainer))
{
break;
}
this.Children.Add((RadElement)this.HamburgerButton);
break;
}
}
protected override SizeF MeasureOverride(SizeF availableSize)
{
NavigationViewDisplayModes effectiveDisplayMode = this.GetEffectiveDisplayMode(availableSize.Width);
if (this.displayModeCache != effectiveDisplayMode)
{
this.EnsureDisplayMode(effectiveDisplayMode);
this.displayModeCache = effectiveDisplayMode;
}
SizeF sizeF = base.MeasureOverride(availableSize);
if (this.GetEffectiveDisplayMode(availableSize.Width) == NavigationViewDisplayModes.Expanded)
{
if (this.IsCollapsed)
{
this.HamburgerButton.Measure(new SizeF((float)this.CollapsedPaneWidth, (float)this.HeaderHeight));
}
else
{
this.HamburgerButton.Measure(new SizeF(this.ItemContainer.DesiredSize.Width, (float)this.HeaderHeight));
}
}
return(sizeF);
}
protected override RectangleF ArrangeItems(RectangleF itemsRect)
{
RectangleF rectangleF = itemsRect;
NavigationViewDisplayModes effectiveDisplayMode = this.GetEffectiveDisplayMode((float)this.Size.Width);
if (this.ItemContainer.Visibility != ElementVisibility.Collapsed)
{
SizeF desiredSize = this.ItemContainer.DesiredSize;
Padding margin = this.ItemContainer.Margin;
RectangleF finalRect = new RectangleF(itemsRect.X + (float)margin.Left, itemsRect.Y + (float)margin.Top + this.HamburgerButton.DesiredSize.Height, desiredSize.Width, desiredSize.Height - (float)margin.Vertical);
if (this.RightToLeft)
{
switch (effectiveDisplayMode)
{
case NavigationViewDisplayModes.Compact:
if (!this.IsCollapsed)
{
break;
}
goto case NavigationViewDisplayModes.Expanded;
case NavigationViewDisplayModes.Expanded:
finalRect.X = itemsRect.Right - (float)margin.Horizontal - desiredSize.Width;
break;
}
}
this.ItemContainer.Arrange(finalRect);
switch (effectiveDisplayMode - 1)
{
case NavigationViewDisplayModes.Auto:
rectangleF = new RectangleF(this.RightToLeft ? itemsRect.X : itemsRect.X + (float)margin.Horizontal, itemsRect.Y, itemsRect.Width, itemsRect.Height);
break;
case NavigationViewDisplayModes.Minimal:
rectangleF = new RectangleF(this.RightToLeft ? itemsRect.X : (float)this.CollapsedPaneWidth + itemsRect.X + (float)margin.Horizontal, itemsRect.Y, itemsRect.Width - (float)this.CollapsedPaneWidth, itemsRect.Height);
break;
case NavigationViewDisplayModes.Compact:
rectangleF = new RectangleF(this.RightToLeft ? itemsRect.X : finalRect.Right + (float)margin.Right, itemsRect.Y, itemsRect.Width - finalRect.Width - (float)margin.Horizontal, itemsRect.Height);
break;
}
}
if (this.HeaderElement.Visibility != ElementVisibility.Collapsed)
{
RectangleF finalRect = new RectangleF(rectangleF.Location, new SizeF(rectangleF.Width, (float)this.HeaderHeight));
if (effectiveDisplayMode == NavigationViewDisplayModes.Minimal)
{
if (this.RightToLeft)
{
finalRect.Width -= this.HamburgerButton.DesiredSize.Width;
}
else
{
finalRect.X += (float)(this.CollapsedPaneWidth + this.ItemContainer.Margin.Horizontal);
}
}
this.HeaderElement.Arrange(finalRect);
rectangleF.Y += (float)this.HeaderHeight;
rectangleF.Height -= (float)this.HeaderHeight;
}
return(rectangleF);
}