diff options
Diffstat (limited to 'Xamarin.Forms.Platform.MacOS/Renderers/TabbedPageRenderer.cs')
| -rw-r--r-- | Xamarin.Forms.Platform.MacOS/Renderers/TabbedPageRenderer.cs | 403 |
1 files changed, 0 insertions, 403 deletions
diff --git a/Xamarin.Forms.Platform.MacOS/Renderers/TabbedPageRenderer.cs b/Xamarin.Forms.Platform.MacOS/Renderers/TabbedPageRenderer.cs deleted file mode 100644 index 3aee095d..00000000 --- a/Xamarin.Forms.Platform.MacOS/Renderers/TabbedPageRenderer.cs +++ /dev/null @@ -1,403 +0,0 @@ -using System; -using System.Collections.Specialized; -using System.ComponentModel; -using AppKit; -using CoreGraphics; -using Xamarin.Forms.Internals; -using Xamarin.Forms.PlatformConfiguration.macOSSpecific; - -namespace Xamarin.Forms.Platform.MacOS -{ - public class TabbedPageRenderer : NSTabViewController, IVisualElementRenderer, IEffectControlProvider - { - const float DefaultImageSizeSegmentedButton = 19; - const int TabHolderHeight = 30; - - bool _disposed; - bool _updatingControllers; - bool _barBackgroundColorWasSet; - bool _barTextColorWasSet; - bool _defaultBarTextColorSet; - bool _defaultBarColorSet; - VisualElementTracker _tracker; - bool _loaded; - Size _queuedSize; - - - public VisualElement Element { get; private set; } - - public event EventHandler<VisualElementChangedEventArgs> ElementChanged; - - public SizeRequest GetDesiredSize(double widthConstraint, double heightConstraint) - { - return NativeView.GetSizeRequest(widthConstraint, heightConstraint); - } - - public NSView NativeView => View; - - public void SetElement(VisualElement element) - { - var oldElement = Element; - Element = element; - - if (oldElement != null) - { - oldElement.PropertyChanged -= OnPropertyChanged; - var tabbedPage = oldElement as TabbedPage; - if (tabbedPage != null) tabbedPage.PagesChanged -= OnPagesChanged; - } - - if (element != null) - { - if (_tracker == null) - { - _tracker = new VisualElementTracker(this); - _tracker.NativeControlUpdated += (sender, e) => UpdateNativeWidget(); - } - } - - OnElementChanged(new VisualElementChangedEventArgs(oldElement, element)); - - ConfigureTabView(); - - OnPagesChanged(null, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset)); - - Tabbed.PropertyChanged += OnPropertyChanged; - Tabbed.PagesChanged += OnPagesChanged; - - UpdateBarBackgroundColor(); - - UpdateBarTextColor(); - - EffectUtilities.RegisterEffectControlProvider(this, oldElement, element); - } - - IPageController PageController => Element as IPageController; - - IElementController ElementController => Element; - - void IEffectControlProvider.RegisterEffect(Effect effect) - { - var platformEffect = effect as PlatformEffect; - if (platformEffect != null) - platformEffect.Container = View; - } - - public void SetElementSize(Size size) - { - if (_loaded) - Element.Layout(new Rectangle(Element.X, Element.Y, size.Width, size.Height)); - else - _queuedSize = size; - } - - public NSViewController ViewController => this; - - public override void ViewWillLayout() - { - base.ViewWillLayout(); - - if (Element == null) - return; - - if (!Element.Bounds.IsEmpty) - View.Frame = new System.Drawing.RectangleF((float)Element.X, (float)Element.Y, (float)Element.Width, (float)Element.Height); - - var frame = View.Frame; - PageController.ContainerArea = new Rectangle(0, 0, frame.Width, frame.Height - TabHolderHeight); - - if (!_queuedSize.IsZero) - { - Element.Layout(new Rectangle(Element.X, Element.Y, _queuedSize.Width, _queuedSize.Height)); - _queuedSize = Size.Zero; - } - - _loaded = true; - } - - - public override nint SelectedTabViewItemIndex - { - get { return base.SelectedTabViewItemIndex; } - set - { - base.SelectedTabViewItemIndex = value; - if (!_updatingControllers) - UpdateCurrentPage(); - } - } - - public override void ViewDidAppear() - { - PageController.SendAppearing(); - base.ViewDidAppear(); - } - - public override void ViewDidDisappear() - { - base.ViewDidDisappear(); - PageController.SendDisappearing(); - } - - protected override void Dispose(bool disposing) - { - if (disposing && !_disposed) - { - _disposed = true; - PageController.SendDisappearing(); - Tabbed.PropertyChanged -= OnPropertyChanged; - Tabbed.PagesChanged -= OnPagesChanged; - - if (_tracker != null) - { - _tracker.Dispose(); - _tracker = null; - } - } - - base.Dispose(disposing); - } - - protected virtual void ConfigureTabView() - { - View.WantsLayer = true; - TabView.WantsLayer = true; - TabView.DrawsBackground = false; - var tabStyle = Tabbed.OnThisPlatform().GetTabsStyle(); - switch (tabStyle) - { - case TabsStyle.OnNavigation: - case TabsStyle.Hidden: - TabStyle = NSTabViewControllerTabStyle.Unspecified; - break; - case TabsStyle.Icons: - TabStyle = NSTabViewControllerTabStyle.Toolbar; - break; - case TabsStyle.OnBottom: - TabStyle = NSTabViewControllerTabStyle.SegmentedControlOnBottom; - break; - default: - TabStyle = NSTabViewControllerTabStyle.SegmentedControlOnTop; - break; - } - - TabView.TabViewType = NSTabViewType.NSNoTabsNoBorder; - } - - protected virtual void OnElementChanged(VisualElementChangedEventArgs e) - { - ElementChanged?.Invoke(this, e); - } - - protected virtual NSTabViewItem GetTabViewItem(Page page, IVisualElementRenderer pageRenderer) - { - var tvi = new NSTabViewItem { ViewController = pageRenderer.ViewController, Label = page.Title ?? "" }; - if (!string.IsNullOrEmpty (page.Icon)) { - var image = GetTabViewItemIcon (page.Icon); - if (image != null) - tvi.Image = image; - } - return tvi; - } - - protected virtual NSImage GetTabViewItemIcon(string imageName) - { - var image = NSImage.ImageNamed (imageName); - if(image == null) - image = new NSImage (imageName); - - if (image == null) - return null; - - bool shouldResize = TabStyle == NSTabViewControllerTabStyle.SegmentedControlOnTop || - TabStyle == NSTabViewControllerTabStyle.SegmentedControlOnBottom; - if (shouldResize) - image = image.ResizeTo(new CGSize(DefaultImageSizeSegmentedButton, DefaultImageSizeSegmentedButton)); - return image; - } - - protected virtual void UpdateNativeWidget() - { - TabView.Layout(); - } - - protected TabbedPage Tabbed => (TabbedPage)Element; - - void OnPagePropertyChanged(object sender, PropertyChangedEventArgs e) - { - if (e.PropertyName == Page.TitleProperty.PropertyName) - { - var page = (Page)sender; - var index = TabbedPage.GetIndex(page); - TabViewItems[index].Label = page.Title; - } - else if (e.PropertyName == Page.IconProperty.PropertyName) - { - var page = (Page)sender; - - var index = TabbedPage.GetIndex(page); - TabViewItems[index].Label = page.Title; - - if (!string.IsNullOrEmpty(page.Icon)) - { - TabViewItems[index].Image = new NSImage(page.Icon); - } - else if (TabViewItems[index].Image != null) - { - TabViewItems[index].Image = new NSImage(); - } - } - } - - void OnPagesChanged(object sender, NotifyCollectionChangedEventArgs e) - { - e.Apply((o, i, c) => SetupPage((Page)o, i), (o, i) => TeardownPage((Page)o), Reset); - - SetControllers(); - - UpdateChildrenOrderIndex(); - - SetSelectedTabViewItem(); - } - - void OnPropertyChanged(object sender, PropertyChangedEventArgs e) - { - if (e.PropertyName == nameof(TabbedPage.CurrentPage)) - { - var current = Tabbed.CurrentPage; - if (current == null) - return; - - SetSelectedTabViewItem(); - } - else if (e.PropertyName == TabbedPage.BarBackgroundColorProperty.PropertyName) - UpdateBarBackgroundColor(); - else if (e.PropertyName == TabbedPage.BarTextColorProperty.PropertyName) - UpdateBarTextColor(); - } - - void Reset() - { - var i = 0; - foreach (var page in Tabbed.Children) - SetupPage(page, i++); - } - - void SetControllers() - { - _updatingControllers = true; - for (var i = 0; i < ElementController.LogicalChildren.Count; i++) - { - var child = ElementController.LogicalChildren[i]; - var page = child as Page; - if (page == null) - continue; - - var pageRenderer = Platform.GetRenderer(page); - if (pageRenderer != null) - { - pageRenderer.ViewController.Identifier = i.ToString(); - - NSTabViewItem newTvi = GetTabViewItem(page, pageRenderer); - - AddTabViewItem(newTvi); - } - } - _updatingControllers = false; - } - - void SetupPage(Page page, int index) - { - var renderer = Platform.GetRenderer(page); - if (renderer == null) - { - renderer = Platform.CreateRenderer(page); - Platform.SetRenderer(page, renderer); - } - - renderer.ViewController.Identifier = index.ToString(); - - page.PropertyChanged += OnPagePropertyChanged; - } - - void TeardownPage(Page page) - { - page.PropertyChanged -= OnPagePropertyChanged; - - Platform.SetRenderer(page, null); - } - - void SetSelectedTabViewItem() - { - if (Tabbed.CurrentPage == null) - return; - var selectedIndex = TabbedPage.GetIndex(Tabbed.CurrentPage); - SelectedTabViewItemIndex = selectedIndex; - } - - void UpdateChildrenOrderIndex() - { - for (var i = 0; i < TabViewItems.Length; i++) - { - int originalIndex; - if (int.TryParse(TabViewItems[i].ViewController.Identifier, out originalIndex)) - { - var page = PageController.InternalChildren[originalIndex]; - TabbedPage.SetIndex(page as Page, i); - } - } - } - - void UpdateCurrentPage() - { - var count = PageController.InternalChildren.Count; - Tabbed.CurrentPage = SelectedTabViewItemIndex >= 0 && SelectedTabViewItemIndex < count - ? Tabbed.GetPageByIndex((int)SelectedTabViewItemIndex) - : null; - } - - //TODO: Implement UpdateBarBackgroundColor - void UpdateBarBackgroundColor() - { - if (Tabbed == null || TabView == null) - return; - - var barBackgroundColor = Tabbed.BarBackgroundColor; - var isDefaultColor = barBackgroundColor.IsDefault; - - if (isDefaultColor && !_barBackgroundColorWasSet) - return; - - if (!_defaultBarColorSet) - { - //_defaultBarColor = TabView.color; - _defaultBarColorSet = true; - } - - if (!isDefaultColor) - _barBackgroundColorWasSet = true; - } - - //TODO: Implement UpdateBarTextColor - void UpdateBarTextColor() - { - if (Tabbed == null || TabView == null) - return; - - var barTextColor = Tabbed.BarTextColor; - var isDefaultColor = barTextColor.IsDefault; - - if (isDefaultColor && !_barTextColorWasSet) - return; - - if (!_defaultBarTextColorSet) - { - // _defaultBarTextColor = TabBar.TintColor; - _defaultBarTextColorSet = true; - } - - if (!isDefaultColor) - _barTextColorWasSet = true; - } - } -}
\ No newline at end of file |