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-rw-r--r--Xamarin.Forms.Platform.MacOS/Renderers/NavigationPageRenderer.cs355
1 files changed, 0 insertions, 355 deletions
diff --git a/Xamarin.Forms.Platform.MacOS/Renderers/NavigationPageRenderer.cs b/Xamarin.Forms.Platform.MacOS/Renderers/NavigationPageRenderer.cs
deleted file mode 100644
index 23d7f856..00000000
--- a/Xamarin.Forms.Platform.MacOS/Renderers/NavigationPageRenderer.cs
+++ /dev/null
@@ -1,355 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Linq;
-using System.Threading.Tasks;
-using AppKit;
-using CoreAnimation;
-using Foundation;
-using Xamarin.Forms.Internals;
-
-namespace Xamarin.Forms.Platform.MacOS
-{
- public class NavigationPageRenderer : NSViewController, IVisualElementRenderer, IEffectControlProvider
- {
- bool _disposed;
- bool _appeared;
- EventTracker _events;
- VisualElementTracker _tracker;
- Stack<NavigationChildPageWrapper> _currentStack = new Stack<NavigationChildPageWrapper>();
-
- IPageController PageController => Element as IPageController;
-
- IElementController ElementController => Element as IElementController;
-
- INavigationPageController NavigationController => Element as INavigationPageController;
-
- void IEffectControlProvider.RegisterEffect(Effect effect)
- {
- var platformEffect = effect as PlatformEffect;
- if (platformEffect != null)
- platformEffect.Container = View;
- }
-
- public NavigationPageRenderer() : this(IntPtr.Zero)
- {
- }
-
- public NavigationPageRenderer(IntPtr handle)
- {
- View = new NSView { WantsLayer = true };
- }
-
- public VisualElement Element { get; private set; }
-
- public event EventHandler<VisualElementChangedEventArgs> ElementChanged;
-
- public SizeRequest GetDesiredSize(double widthConstraint, double heightConstraint)
- {
- return NativeView.GetSizeRequest(widthConstraint, heightConstraint);
- }
-
- public NSViewController ViewController => this;
-
- public NSView NativeView => View;
-
- public void SetElement(VisualElement element)
- {
- var oldElement = Element;
- Element = element;
-
- Init();
-
- OnElementChanged(new VisualElementChangedEventArgs(oldElement, element));
-
- EffectUtilities.RegisterEffectControlProvider(this, oldElement, element);
- }
-
- public void SetElementSize(Size size)
- {
- Element.Layout(new Rectangle(Element.X, Element.Y, size.Width, size.Height));
- }
-
- public Task<bool> PopToRootAsync(Page page, bool animated = true)
- {
- return OnPopToRoot(page, animated);
- }
-
- public Task<bool> PopViewAsync(Page page, bool animated = true)
- {
- return OnPop(page, animated);
- }
-
- public Task<bool> PushPageAsync(Page page, bool animated = true)
- {
- return OnPush(page, animated);
- }
-
- protected override void Dispose(bool disposing)
- {
- if (!_disposed && disposing)
- {
- if (Element != null)
- {
- PageController?.SendDisappearing();
- ((Element as IPageContainer<Page>)?.CurrentPage as IPageController)?.SendDisappearing();
- Element.PropertyChanged -= HandlePropertyChanged;
- Element = null;
- }
-
- _tracker?.Dispose();
- _tracker = null;
-
- _events?.Dispose();
- _events = null;
-
- _disposed = true;
- }
- base.Dispose(disposing);
- }
-
- public override void ViewDidDisappear()
- {
- base.ViewDidDisappear();
- if (!_appeared)
- return;
- Platform.NativeToolbarTracker.TryHide(Element as NavigationPage);
- _appeared = false;
- PageController?.SendDisappearing();
- }
-
- public override void ViewDidAppear()
- {
- base.ViewDidAppear();
- Platform.NativeToolbarTracker.Navigation = (NavigationPage)Element;
- if (_appeared)
- return;
-
- _appeared = true;
- PageController?.SendAppearing();
- }
-
- protected virtual void OnElementChanged(VisualElementChangedEventArgs e)
- {
- if (e.OldElement != null)
- e.OldElement.PropertyChanged -= HandlePropertyChanged;
-
- if (e.NewElement != null)
- e.NewElement.PropertyChanged += HandlePropertyChanged;
-
- ElementChanged?.Invoke(this, e);
- }
-
- protected virtual void ConfigurePageRenderer()
- {
- View.WantsLayer = true;
- }
-
- protected virtual Task<bool> OnPopToRoot(Page page, bool animated)
- {
- var renderer = Platform.GetRenderer(page);
- if (renderer == null || renderer.ViewController == null)
- return Task.FromResult(false);
-
- Platform.NativeToolbarTracker.UpdateToolBar();
- return Task.FromResult(true);
- }
-
- protected virtual async Task<bool> OnPop(Page page, bool animated)
- {
- var removed = await PopPageAsync(page, animated);
- Platform.NativeToolbarTracker.UpdateToolBar();
- return removed;
- }
-
- protected virtual async Task<bool> OnPush(Page page, bool animated)
- {
- var shown = await AddPage(page, animated);
- Platform.NativeToolbarTracker.UpdateToolBar();
- return shown;
- }
-
- void Init()
- {
- ConfigurePageRenderer();
-
- var navPage = (NavigationPage)Element;
-
- if (navPage.CurrentPage == null)
- throw new InvalidOperationException(
- "NavigationPage must have a root Page before being used. Either call PushAsync with a valid Page, or pass a Page to the constructor before usage.");
-
- Platform.NativeToolbarTracker.Navigation = navPage;
-
- NavigationController.PushRequested += OnPushRequested;
- NavigationController.PopRequested += OnPopRequested;
- NavigationController.PopToRootRequested += OnPopToRootRequested;
- NavigationController.RemovePageRequested += OnRemovedPageRequested;
- NavigationController.InsertPageBeforeRequested += OnInsertPageBeforeRequested;
-
- navPage.Popped += (sender, e) => Platform.NativeToolbarTracker.UpdateToolBar();
- navPage.PoppedToRoot += (sender, e) => Platform.NativeToolbarTracker.UpdateToolBar();
-
- UpdateBarBackgroundColor();
- UpdateBarTextColor();
-
- _events = new EventTracker(this);
- _events.LoadEvents(NativeView);
- _tracker = new VisualElementTracker(this);
-
- ((INavigationPageController)navPage).Pages.ForEach(async p => await PushPageAsync(p, false));
-
- UpdateBackgroundColor();
- }
-
- IVisualElementRenderer CreateViewControllerForPage(Page page)
- {
- if (Platform.GetRenderer(page) == null)
- Platform.SetRenderer(page, Platform.CreateRenderer(page));
-
- var pageRenderer = Platform.GetRenderer(page);
- return pageRenderer;
- }
-
- //TODO: Implement InserPageBefore
- void InsertPageBefore(Page page, Page before)
- {
- if (before == null)
- throw new ArgumentNullException(nameof(before));
- if (page == null)
- throw new ArgumentNullException(nameof(page));
- }
-
- void OnInsertPageBeforeRequested(object sender, NavigationRequestedEventArgs e)
- {
- InsertPageBefore(e.Page, e.BeforePage);
- }
-
- void OnPopRequested(object sender, NavigationRequestedEventArgs e)
- {
- e.Task = PopViewAsync(e.Page, e.Animated);
- }
-
- void OnPopToRootRequested(object sender, NavigationRequestedEventArgs e)
- {
- e.Task = PopToRootAsync(e.Page, e.Animated);
- }
-
- void OnPushRequested(object sender, NavigationRequestedEventArgs e)
- {
- e.Task = PushPageAsync(e.Page, e.Animated);
- }
-
- void OnRemovedPageRequested(object sender, NavigationRequestedEventArgs e)
- {
- RemovePage(e.Page, true);
- Platform.NativeToolbarTracker.UpdateToolBar();
- }
-
- void RemovePage(Page page, bool removeFromStack)
- {
- (page as IPageController)?.SendDisappearing();
- var target = Platform.GetRenderer(page);
- target?.NativeView?.RemoveFromSuperview();
- target?.ViewController?.RemoveFromParentViewController();
- target?.Dispose();
- if (removeFromStack)
- {
- var newStack = new Stack<NavigationChildPageWrapper>();
- foreach (var stack in _currentStack)
- {
- if (stack.Page != page)
- {
- newStack.Push(stack);
- }
- }
- _currentStack = newStack;
- }
- }
-
- async Task<bool> PopPageAsync(Page page, bool animated)
- {
- if (page == null)
- throw new ArgumentNullException(nameof(page));
-
- var wrapper = _currentStack.Peek();
- if (page != wrapper.Page)
- throw new NotSupportedException("Popped page does not appear on top of current navigation stack, please file a bug.");
-
- _currentStack.Pop();
- (page as IPageController)?.SendDisappearing();
-
- var target = Platform.GetRenderer(page);
- var previousPage = _currentStack.Peek().Page;
-
- if (animated)
- {
- var previousPageRenderer = Platform.GetRenderer(previousPage);
- return await this.HandleAsyncAnimation(target.ViewController, previousPageRenderer.ViewController,
- NSViewControllerTransitionOptions.SlideBackward, () => Platform.DisposeRendererAndChildren(target), true);
- }
-
- RemovePage(page, false);
- return true;
- }
-
- async Task<bool> AddPage(Page page, bool animated)
- {
- if (page == null)
- throw new ArgumentNullException(nameof(page));
-
- Page oldPage = null;
- if (_currentStack.Count >= 1)
- oldPage = _currentStack.Peek().Page;
-
- _currentStack.Push(new NavigationChildPageWrapper(page));
-
- var vc = CreateViewControllerForPage(page);
- vc.SetElementSize(new Size(View.Bounds.Width, View.Bounds.Height));
- page.Layout(new Rectangle(0, 0, View.Bounds.Width, View.Frame.Height));
-
- if (_currentStack.Count == 1 || !animated)
- {
- vc.NativeView.WantsLayer = true;
- AddChildViewController(vc.ViewController);
- View.AddSubview(vc.NativeView);
- return true;
- }
- var vco = Platform.GetRenderer(oldPage);
- AddChildViewController(vc.ViewController);
- return await this.HandleAsyncAnimation(vco.ViewController, vc.ViewController,
- NSViewControllerTransitionOptions.SlideForward, () => (page as IPageController)?.SendAppearing(), true);
- }
-
- void UpdateBackgroundColor()
- {
- if (View.Layer == null)
- return;
- var color = Element.BackgroundColor == Color.Default ? Color.White : Element.BackgroundColor;
- View.Layer.BackgroundColor = color.ToCGColor();
- }
-
- void UpdateBarBackgroundColor()
- {
- Platform.NativeToolbarTracker.UpdateToolBar();
- }
-
- void UpdateBarTextColor()
- {
- Platform.NativeToolbarTracker.UpdateToolBar();
- }
-
- void HandlePropertyChanged(object sender, PropertyChangedEventArgs e)
- {
- if (_tracker == null)
- return;
-
- if (e.PropertyName == NavigationPage.BarBackgroundColorProperty.PropertyName)
- UpdateBarBackgroundColor();
- else if (e.PropertyName == NavigationPage.BarTextColorProperty.PropertyName)
- UpdateBarTextColor();
- else if (e.PropertyName == VisualElement.BackgroundColorProperty.PropertyName)
- UpdateBackgroundColor();
- }
- }
-} \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-11 23:23:25 +0000