+++ /dev/null
-using System.Collections.Generic;
-using System.Collections.Specialized;
-using System.ComponentModel;
-using System.Linq;
-using ElmSharp;
-using Xamarin.Forms.PlatformConfiguration.TizenSpecific;
-using EColor = ElmSharp.Color;
-using EToolbarItem = ElmSharp.ToolbarItem;
-using EToolbarItemEventArgs = ElmSharp.ToolbarItemEventArgs;
-
-namespace Xamarin.Forms.Platform.Tizen
-{
- public class TabbedPageRenderer : VisualElementRenderer<TabbedPage>
- {
- Box _outterLayout;
- Box _innerBox;
- Scroller _scroller;
- Toolbar _toolbar;
- Dictionary<EToolbarItem, Page> _itemToItemPage = new Dictionary<EToolbarItem, Page>();
- List<EToolbarItem> _toolbarItemList = new List<EToolbarItem>();
- bool _isResettingToolbarItems = false;
- bool _isInitialized = false;
- bool _isUpdateByToolbar = false;
- bool _isUpdateByScroller = false;
- bool _isUpdateByCurrentPage = false;
-
- public TabbedPageRenderer()
- {
- RegisterPropertyHandler(Page.TitleProperty, UpdateTitle);
- RegisterPropertyHandler(nameof(Element.CurrentPage), OnCurrentPageChanged);
- RegisterPropertyHandler(TabbedPage.BarBackgroundColorProperty, UpdateBarBackgroundColor);
- RegisterPropertyHandler(TabbedPage.BarTextColorProperty, UpdateBarTextColor);
- RegisterPropertyHandler(TabbedPage.SelectedTabColorProperty, UpdateSelectedTabColor);
- RegisterPropertyHandler(TabbedPage.UnselectedTabColorProperty, UpdateUnselectedTabColor);
- }
-
- protected override void OnElementChanged(ElementChangedEventArgs<TabbedPage> e)
- {
- if (_toolbar == null)
- {
- //Create box that holds toolbar and selected content
- _outterLayout = new Box(Forms.NativeParent)
- {
- AlignmentX = -1,
- AlignmentY = -1,
- WeightX = 1,
- WeightY = 1,
- IsHorizontal = false,
- };
- _outterLayout.Show();
-
- //Create toolbar that is placed inside the _outterLayout
- _toolbar = new Toolbar(Forms.NativeParent)
- {
- AlignmentX = -1,
- WeightX = 1,
- SelectionMode = ToolbarSelectionMode.Always,
- };
-
- if (Device.Idiom == TargetIdiom.Phone)
- {
- //Set ShrinkMode to Expand as defauly only for Mobile profile
- _toolbar.ShrinkMode = ToolbarShrinkMode.Expand;
- }
- else if (Device.Idiom == TargetIdiom.TV)
- {
- //According to TV UX Guideline, toolbar style should be set to "tabbar_with_title" in case of TabbedPage only for TV profile.
- _toolbar.Style = "tabbar_with_title";
- }
-
- _toolbar.Show();
- //Add callback for Toolbar item selection
- _toolbar.Selected += OnToolbarItemSelected;
- _outterLayout.PackEnd(_toolbar);
-
- _scroller = new Scroller(_outterLayout)
- {
- AlignmentX = -1,
- AlignmentY = -1,
- WeightX = 1,
- WeightY = 1,
- HorizontalPageScrollLimit = 1,
- ScrollBlock = ScrollBlock.Vertical,
- HorizontalScrollBarVisiblePolicy = ScrollBarVisiblePolicy.Invisible
- };
- _scroller.SetPageSize(1.0, 1.0);
- _scroller.PageScrolled += OnItemPageScrolled;
-
- _innerBox = new Box(Forms.NativeParent)
- {
- AlignmentX = -1,
- AlignmentY = -1,
- WeightX = 1,
- WeightY = 1,
- IsHorizontal = true,
- };
-
- _innerBox.SetLayoutCallback(OnInnerLayoutUpdate);
-
- _scroller.SetContent(_innerBox);
- _scroller.Show();
-
- _outterLayout.PackEnd(_scroller);
-
- SetNativeView(_outterLayout);
- UpdateTitle();
- }
-
- if (e.OldElement != null)
- {
- e.OldElement.PagesChanged -= OnElementPagesChanged;
- _isInitialized = false;
- }
- if (e.NewElement != null)
- {
- e.NewElement.PagesChanged += OnElementPagesChanged;
- }
-
- base.OnElementChanged(e);
- }
-
- protected override void Dispose(bool disposing)
- {
- if (disposing)
- {
- Element.PagesChanged -= OnElementPagesChanged;
- if (_outterLayout != null)
- {
- _outterLayout.Unrealize();
- _outterLayout = null;
- }
- if (_toolbar != null)
- {
- _toolbar.Selected -= OnToolbarItemSelected;
- _scroller.PageScrolled -= OnItemPageScrolled;
- _toolbar.Unrealize();
- _toolbar = null;
- }
- }
- base.Dispose(disposing);
- }
-
- protected override void OnElementReady()
- {
- base.OnElementReady();
- _isInitialized = true;
- FillToolbarAndContents();
- Element.UpdateFocusTreePolicy();
- }
-
- protected override void UpdateThemeStyle()
- {
- var style = Element.OnThisPlatform().GetStyle();
- if (!string.IsNullOrEmpty(style))
- {
- _toolbar.Style = style;
- ((IVisualElementController)Element).NativeSizeChanged();
- }
- }
-
- void OnInnerLayoutUpdate()
- {
- if (!_isInitialized)
- return;
-
- int baseX = _innerBox.Geometry.X;
- Rect bound = _scroller.Geometry;
- int index = 0;
- foreach (var page in Element.Children)
- {
- var nativeView = Platform.GetRenderer(page).NativeView;
- bound.X = baseX + index * bound.Width;
- nativeView.Geometry = bound;
- index++;
- }
- _innerBox.MinimumWidth = Element.Children.Count * bound.Width;
- if (_toolbar.SelectedItem == null)
- return;
- int currentPage = MultiPage<Page>.GetIndex(_itemToItemPage[_toolbar.SelectedItem]);
- _scroller.ScrollTo(currentPage, 0, false);
- }
-
- void OnItemPageScrolled(object sender, System.EventArgs e)
- {
- if (_isUpdateByToolbar || _isUpdateByCurrentPage)
- return;
- _isUpdateByScroller = true;
-
- var oldPage = Element.CurrentPage;
- var toBeSelectedItem = _toolbarItemList[_scroller.HorizontalPageIndex];
- var newPage = _itemToItemPage[toBeSelectedItem];
-
- if (oldPage != newPage)
- {
- oldPage?.SendDisappearing();
- newPage.SendAppearing();
-
- toBeSelectedItem.IsSelected = true;
- Element.CurrentPage = newPage;
- Element.UpdateFocusTreePolicy();
- }
-
- _isUpdateByScroller = false;
- }
-
- void UpdateBarBackgroundColor(bool initialize)
- {
- if (initialize && Element.BarBackgroundColor.IsDefault)
- return;
-
- EColor bgColor = Element.BarBackgroundColor.ToNative();
- _toolbar.BackgroundColor = bgColor;
- foreach (EToolbarItem item in _itemToItemPage.Keys)
- {
- ApplyBarItemColors(item, BarItemColorType.Background, bgColor);
- }
- }
-
- void UpdateBarTextColor(bool initialize)
- {
- if (initialize && Element.BarTextColor.IsDefault)
- return;
-
- foreach (EToolbarItem item in _itemToItemPage.Keys)
- {
- ApplyBarItemColors(item, BarItemColorType.Text, Element.BarTextColor.ToNative());
- }
- }
-
- void UpdateSelectedTabColor(bool initialize)
- {
- if (initialize && Element.SelectedTabColor.IsDefault)
- return;
-
- foreach (EToolbarItem item in _itemToItemPage.Keys)
- {
- ApplyBarItemColors(item, BarItemColorType.SelectedTab, Element.SelectedTabColor.ToNative());
- }
- }
-
- void UpdateUnselectedTabColor(bool initialize)
- {
- if (initialize && Element.UnselectedTabColor.IsDefault)
- return;
-
- foreach (EToolbarItem item in _itemToItemPage.Keys)
- {
- ApplyBarItemColors(item, BarItemColorType.UnselectedTab, Element.UnselectedTabColor.ToNative());
- }
- }
-
- void UpdateTitle()
- {
- _toolbar.Text = Element.Title;
- }
-
- void UpdateTitle(Page page)
- {
- if (_itemToItemPage.ContainsValue(page))
- {
- var pair = _itemToItemPage.FirstOrDefault(x => x.Value == page);
- pair.Key.SetPartText(null, pair.Value.Title);
- }
- }
-
- void OnPageTitleChanged(object sender, PropertyChangedEventArgs e)
- {
- if (e.PropertyName == Page.TitleProperty.PropertyName)
- {
- UpdateTitle(sender as Page);
- }
- }
-
- void OnElementPagesChanged(object sender, NotifyCollectionChangedEventArgs e)
- {
- switch (e.Action)
- {
- case NotifyCollectionChangedAction.Add:
- AddToolbarItems(e);
- break;
- case NotifyCollectionChangedAction.Remove:
- RemoveToolbarItems(e);
- break;
- default:
- ResetToolbarItems();
- break;
- }
- Element.UpdateFocusTreePolicy();
- }
-
- void AddToolbarItems(NotifyCollectionChangedEventArgs e)
- {
- int index = e.NewStartingIndex < 0 ? _toolbar.ItemsCount : e.NewStartingIndex;
- foreach (Page item in e.NewItems)
- {
- AddToolbarItem(item, index++);
- }
- }
-
- EToolbarItem AddToolbarItem(Page newItem, int index)
- {
- EToolbarItem toolbarItem;
-
- // TODO: investigate if we can use the other image source types: stream, font, uri
-
- var iconSource = newItem.IconImageSource as FileImageSource;
- var icon = iconSource.IsNullOrEmpty() ? null : ResourcePath.GetPath(iconSource);
-
- if (index == 0)
- {
- toolbarItem = _toolbar.Prepend(newItem.Title, icon);
- }
- else
- {
- toolbarItem = _toolbar.InsertAfter(_toolbarItemList[index - 1], newItem.Title, icon);
- }
- _toolbarItemList.Insert(index, toolbarItem);
- _itemToItemPage.Add(toolbarItem, newItem);
-
- ApplyBarItemColors(toolbarItem, BarItemColorType.Background, Element.BarBackgroundColor.ToNative());
- ApplyBarItemColors(toolbarItem, BarItemColorType.Text, Element.BarTextColor.ToNative());
- ApplyBarItemColors(toolbarItem, BarItemColorType.SelectedTab, Element.SelectedTabColor.ToNative());
- ApplyBarItemColors(toolbarItem, BarItemColorType.UnselectedTab, Element.UnselectedTabColor.ToNative());
-
- var childContent = Platform.GetOrCreateRenderer(newItem).NativeView;
- _innerBox.PackEnd(childContent);
-
- newItem.PropertyChanged += OnPageTitleChanged;
-
- return toolbarItem;
- }
-
- void RemoveToolbarItems(NotifyCollectionChangedEventArgs e)
- {
- foreach (Page item in e.OldItems)
- {
- RemoveToolbarItem(item);
- }
- }
-
- void RemoveToolbarItem(Page oldItem)
- {
- foreach (var pair in _itemToItemPage)
- {
- if (pair.Value == oldItem)
- {
- pair.Value.PropertyChanged -= OnPageTitleChanged;
- _toolbarItemList.Remove(pair.Key);
- _itemToItemPage.Remove(pair.Key);
- pair.Key.Delete();
- return;
- }
- }
- }
-
- void ResetToolbarItems()
- {
- _isResettingToolbarItems = true;
- foreach (var pair in _itemToItemPage)
- {
- pair.Value.PropertyChanged -= OnPageTitleChanged;
- pair.Key.Delete();
- }
- _itemToItemPage.Clear();
- _toolbarItemList.Clear();
-
- FillToolbarAndContents();
- _isResettingToolbarItems = false;
- }
-
- void FillToolbarAndContents()
- {
- int index = 0;
- //add items to toolbar
- foreach (Page child in Element.Children)
- {
- EToolbarItem toolbarItem = AddToolbarItem(child, index++);
-
- if (Element.CurrentPage == child)
- {
- //select item on the toolbar and fill content
- toolbarItem.IsSelected = true;
- }
- }
- }
-
- void OnToolbarItemSelected(object sender, EToolbarItemEventArgs e)
- {
- if (_toolbar.SelectedItem == null || _isResettingToolbarItems)
- return;
- if (_isUpdateByCurrentPage || _isUpdateByScroller)
- return;
- _isUpdateByToolbar = true;
-
- var oldPage = Element.CurrentPage;
- var newPage = _itemToItemPage[_toolbar.SelectedItem];
-
- if (oldPage != newPage)
- {
- oldPage?.SendDisappearing();
- Element.CurrentPage = newPage;
- newPage?.SendAppearing();
-
- int index = MultiPage<Page>.GetIndex(newPage);
- _scroller.ScrollTo(index, 0, true);
-
- Element.UpdateFocusTreePolicy();
- }
- _isUpdateByToolbar = false;
- }
-
- void OnCurrentPageChanged()
- {
- // To update TabIndex order
- CustomFocusManager.StartReorderTabIndex();
-
- if (_isUpdateByScroller || _isUpdateByToolbar || !_isInitialized)
- return;
-
- _isUpdateByCurrentPage = true;
- Page oldPage = null;
- if (_toolbar.SelectedItem != null && _itemToItemPage.ContainsKey(_toolbar.SelectedItem))
- oldPage = _itemToItemPage[_toolbar.SelectedItem];
-
- oldPage?.SendDisappearing();
- Element.CurrentPage?.SendAppearing();
-
- int index = MultiPage<Page>.GetIndex(Element.CurrentPage);
- _toolbarItemList[index].IsSelected = true;
- _scroller.ScrollTo(index, 0, true);
-
- Element.UpdateFocusTreePolicy();
- _isUpdateByCurrentPage = false;
- }
-
- void ApplyBarItemColors(EToolbarItem item, BarItemColorType type, EColor color)
- {
- if (color.IsDefault)
- {
- ClearBarItemColors(item, type);
- }
- else
- {
- switch (type)
- {
- case BarItemColorType.Background:
- item.SetPartColor("bg", color);
- break;
- case BarItemColorType.Text:
- if (string.IsNullOrEmpty(item.Icon))
- {
- item.SetPartColor("text", color);
- item.SetPartColor("text_pressed", color);
- item.SetPartColor("text_selected", color);
- }
- else
- {
- item.SetPartColor("text_under_icon", color);
- item.SetPartColor("text_under_icon_pressed", color);
- item.SetPartColor("text_under_icon_selected", color);
- }
- item.SetPartColor("underline", color);
- break;
- case BarItemColorType.SelectedTab:
- if (string.IsNullOrEmpty(item.Icon))
- {
- item.SetPartColor("text_selected", color);
- }
- else
- {
- item.SetPartColor("text_under_icon_selected", color);
- item.SetPartColor("icon_selected", color);
- }
- item.SetPartColor("underline", color);
- break;
- case BarItemColorType.UnselectedTab:
- if (string.IsNullOrEmpty(item.Icon))
- {
- item.SetPartColor("text", color);
- item.SetPartColor("text_pressed", color);
- }
- else
- {
- item.SetPartColor("text_under_icon", color);
- item.SetPartColor("text_under_icon_pressed", color);
- item.SetPartColor("icon", color);
- item.SetPartColor("icon_pressed", color);
- }
- break;
- default:
- break;
- }
- }
- }
-
- void ClearBarItemColors(EToolbarItem item, BarItemColorType type)
- {
- switch (type)
- {
- case BarItemColorType.Background:
- item.DeletePartColor("bg");
- break;
- case BarItemColorType.Text:
- if (string.IsNullOrEmpty(item.Icon))
- {
- item.DeletePartColor("text");
- item.DeletePartColor("text_pressed");
- item.DeletePartColor("text_selected");
- }
- else
- {
- item.DeletePartColor("text_under_icon");
- item.DeletePartColor("text_under_icon_pressed");
- item.DeletePartColor("text_under_icon_selected");
- }
- item.DeletePartColor("underline");
- break;
- case BarItemColorType.SelectedTab:
- if (string.IsNullOrEmpty(item.Icon))
- {
- item.DeletePartColor("text_selected");
- }
- else
- {
- item.DeletePartColor("text_under_icon_selected");
- item.DeletePartColor("icon_selected");
- }
- item.DeletePartColor("underline");
- break;
- case BarItemColorType.UnselectedTab:
- if (string.IsNullOrEmpty(item.Icon))
- {
- item.DeletePartColor("text");
- item.DeletePartColor("text_pressed");
- }
- else
- {
- item.DeletePartColor("text_under_icon");
- item.DeletePartColor("text_under_icon_pressed");
- item.DeletePartColor("icon");
- item.DeletePartColor("icon_pressed");
- }
- break;
- default:
- break;
- }
- }
- }
-
- enum BarItemColorType
- {
- Background,
- Text,
- SelectedTab,
- UnselectedTab
- }
-}
projects / platform / core / csapi / xsf.git / commitdiff