forked from dotnet/maui
/
MasterDetailPageRenderer.cs
158 lines (137 loc) · 4.1 KB
/
MasterDetailPageRenderer.cs
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using System;
using Microsoft.Maui.Controls.Platform;
using Microsoft.Maui.Controls.Compatibility.Platform.Tizen.Renderers;
namespace Microsoft.Maui.Controls.Compatibility.Platform.Tizen
{
#pragma warning disable CS0618 // Type or member is obsolete
[Obsolete("MasterDetailPage is obsolete as of version 5.0.0. Please use FlyoutPage instead.")]
public class MasterDetailPageRenderer : VisualElementRenderer<MasterDetailPage>
{
Native.FlyoutPage _mdpage;
MasterDetailContainer _masterContainer = null;
MasterDetailContainer _detailContainer = null;
/// <summary>
/// Default constructor.
/// </summary>
public MasterDetailPageRenderer()
{
RegisterPropertyHandler(nameof(Element.Master), UpdateMasterPage);
RegisterPropertyHandler(nameof(Element.Detail), UpdateDetailPage);
RegisterPropertyHandler(MasterDetailPage.IsPresentedProperty,
UpdateIsPresented);
RegisterPropertyHandler(MasterDetailPage.MasterBehaviorProperty,
UpdateMasterBehavior);
RegisterPropertyHandler(MasterDetailPage.IsGestureEnabledProperty,
UpdateIsGestureEnabled);
}
protected override void OnElementChanged(ElementChangedEventArgs<MasterDetailPage> e)
{
if (_mdpage == null)
{
_mdpage = new Native.FlyoutPage(Forms.NativeParent)
{
IsPresented = e.NewElement.IsPresented,
Flyout = _masterContainer = new MasterDetailContainer(Element, true),
Detail = _detailContainer = new MasterDetailContainer(Element, false),
};
_mdpage.IsPresentedChanged += (sender, ev) =>
{
Element.IsPresented = ev.IsPresent;
};
_mdpage.UpdateIsPresentChangeable += (sender, ev) =>
{
(Element as IMasterDetailPageController).CanChangeIsPresented = ev.CanChange;
};
SetNativeView(_mdpage);
}
if (e.OldElement != null)
{
(e.OldElement as IMasterDetailPageController).BackButtonPressed -= OnBackButtonPressed;
e.OldElement.Appearing -= OnMasterDetailAppearing;
e.OldElement.Disappearing -= OnMasterDetailDisappearing;
}
if (e.NewElement != null)
{
(e.NewElement as IMasterDetailPageController).BackButtonPressed += OnBackButtonPressed;
e.NewElement.Appearing += OnMasterDetailAppearing;
e.NewElement.Disappearing += OnMasterDetailDisappearing;
}
UpdateMasterBehavior();
base.OnElementChanged(e);
}
void OnMasterDetailDisappearing(object sender, EventArgs e)
{
_masterContainer?.SendDisappearing();
_detailContainer?.SendDisappearing();
}
void OnMasterDetailAppearing(object sender, EventArgs e)
{
_masterContainer?.SendAppearing();
_detailContainer?.SendAppearing();
}
protected override void OnElementReady()
{
base.OnElementReady();
UpdateMasterPage(false);
UpdateDetailPage(false);
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (_masterContainer != null)
{
_masterContainer.Dispose();
_masterContainer = null;
}
if (_detailContainer != null)
{
_detailContainer.Dispose();
_detailContainer = null;
}
if (Element != null)
{
Element.Appearing -= OnMasterDetailAppearing;
Element.Disappearing -= OnMasterDetailDisappearing;
}
}
base.Dispose(disposing);
}
protected void UpdateMasterPageRatio(double popoverRatio, double splitRatio)
{
_mdpage.PopoverRatio = popoverRatio;
_mdpage.SplitRatio = splitRatio;
}
void OnBackButtonPressed(object sender, BackButtonPressedEventArgs e)
{
if ((Element != null) && Element.IsPresented && !_mdpage.IsSplit)
{
Element.IsPresented = false;
e.Handled = true;
}
}
void UpdateMasterBehavior()
{
_mdpage.FlyoutLayoutBehavior = (FlyoutLayoutBehavior)Element.MasterBehavior;
}
void UpdateMasterPage(bool isInit)
{
if (!isInit)
_masterContainer.ChildView = Element.Master;
}
void UpdateDetailPage(bool isInit)
{
if (!isInit)
_detailContainer.ChildView = Element.Detail;
}
void UpdateIsPresented()
{
_mdpage.IsPresented = Element.IsPresented;
}
void UpdateIsGestureEnabled()
{
_mdpage.IsGestureEnabled = Element.IsGestureEnabled;
}
}
#pragma warning restore CS0618 // Type or member is obsolete
}