예제 #1
0
파일: ShellView.cs 프로젝트: Glepooek/maui
        internal void SwitchShellItem(ShellItem newItem, bool animate = true)
        {
            // Implicit items aren't items that are surfaced to the user
            // or data structures. So, we just want to find the element
            // the user defined on Shell
            if (Routing.IsImplicit(newItem))
            {
                if (Routing.IsImplicit(newItem.CurrentItem))
                {
                    SelectedItem = newItem.CurrentItem.CurrentItem;
                }
                else
                {
                    SelectedItem = newItem.CurrentItem;
                }
            }
            else
            {
                SelectedItem = newItem;
            }

            var handler = CreateShellItemView();

            if (handler.VirtualView != newItem)
            {
                handler.SetVirtualView(newItem);
            }
        }
예제 #2
0
        void MapMenuItems()
        {
            List <BaseShellItem> items;

            IShellItemController shellItemController = VirtualView;

            if (Routing.IsImplicit(VirtualView))
            {
                items = new List <BaseShellItem>(((IShellSectionController)VirtualView.CurrentItem).GetItems());
            }
            else
            {
                items = new List <BaseShellItem>(shellItemController.GetItems());
            }

            bool   hasTabs      = shellItemController.ShowTabs;
            object?selectedItem = null;

            _mainLevelTabs.SyncItems(items, (navItem, baseShellItem) =>
            {
                SetValues(baseShellItem, navItem);

                if (baseShellItem is not ShellSection shellSection)
                {
                    navItem.MenuItemsSource = null;
                    if (baseShellItem.Parent == VirtualView.CurrentItem)
                    {
                        selectedItem = navItem;
                    }

                    return;
                }

                var shellSectionItems = ((IShellSectionController)shellSection).GetItems();

                if (shellSection == VirtualView.CurrentItem)
                {
                    selectedItem = navItem;
                }

                if (shellSectionItems.Count <= 1)
                {
                    if (navItem.MenuItemsSource != null)
                    {
                        navItem.MenuItemsSource = null;
                    }
                }
                else
                {
                    navItem.MenuItemsSource ??= new ObservableCollection <NavigationViewItemViewModel>();
                    navItem
                    .MenuItemsSource
                    .SyncItems(shellSectionItems, (shellContentNavItem, shellContent) =>
                    {
                        SetValues(shellContent, shellContentNavItem);

                        if (shellSection == VirtualView.CurrentItem &&
                            shellContent == VirtualView.CurrentItem.CurrentItem)
                        {
                            selectedItem = shellContentNavItem;
                        }
                    });

                    hasTabs = hasTabs || shellSectionItems.Count > 1;
                }

                void SetValues(BaseShellItem bsi, NavigationViewItemViewModel vm)
                {
                    vm.Content     = bsi.Title;
                    var iconSource = bsi.Icon?.ToIconSource(MauiContext !);

                    if (iconSource != null)
                    {
                        if (vm.Foreground != null)
                        {
                            iconSource.Foreground = vm.Foreground;
                        }
                        else if (PlatformView.Resources.TryGetValue("NavigationViewItemForeground", out object nviForeground) &&
                                 nviForeground is WBrush brush)
                        {
                            iconSource.Foreground = brush;
                        }
                    }

                    vm.Icon = iconSource?.CreateIconElement();
                }
            });
예제 #3
0
        void MapMenuItems()
        {
            List <BaseShellItem> items;

            if (Routing.IsImplicit(VirtualView))
            {
                items = new List <BaseShellItem>(((IShellSectionController)VirtualView.CurrentItem).GetItems());
            }
            else
            {
                items = new List <BaseShellItem>(((IShellItemController)VirtualView).GetItems());
            }

            bool   hasTabs      = items.Count > 1;
            object?selectedItem = null;

            _mainLevelTabs.SyncItems(items, (navItem, baseShellItem) =>
            {
                SetValues(baseShellItem, navItem);

                if (baseShellItem is not ShellSection shellSection)
                {
                    navItem.MenuItemsSource = null;
                    if (baseShellItem.Parent == VirtualView.CurrentItem)
                    {
                        selectedItem = navItem;
                    }

                    return;
                }

                var shellSectionItems = ((IShellSectionController)shellSection).GetItems();

                if (shellSection == VirtualView.CurrentItem)
                {
                    selectedItem = navItem;
                }

                if (shellSectionItems.Count <= 1)
                {
                    if (navItem.MenuItemsSource != null)
                    {
                        navItem.MenuItemsSource = null;
                    }
                }
                else
                {
                    navItem.MenuItemsSource ??= new ObservableCollection <NavigationViewItemViewModel>();
                    navItem
                    .MenuItemsSource
                    .SyncItems(shellSectionItems, (shellContentNavItem, shellContent) =>
                    {
                        SetValues(shellContent, shellContentNavItem);

                        if (shellSection == VirtualView.CurrentItem &&
                            shellContent == VirtualView.CurrentItem.CurrentItem)
                        {
                            selectedItem = shellContentNavItem;
                        }
                    });

                    hasTabs = hasTabs || shellSectionItems.Count > 1;
                }

                void SetValues(BaseShellItem bsi, NavigationViewItemViewModel vm)
                {
                    vm.Content = bsi.Title;
                    vm.Icon    = bsi.Icon?.ToIconSource(MauiContext !)?.CreateIconElement();
                }
            });
예제 #4
0
        void MapMenuItems()
        {
            // NavigationView makes a lot of changes to properties before it's been loaded
            // So we like to just wait until it's loaded to project our changes over it
            if (!ShellItemNavigationView.IsLoaded)
            {
                return;
            }

            IShellItemController shellItemController = VirtualView;
            var items = new List <BaseShellItem>();

            // only add items if we should be showing the tabs
            if (shellItemController.ShowTabs)
            {
                foreach (var item in shellItemController.GetItems())
                {
                    if (Routing.IsImplicit(item))
                    {
                        items.Add(item.CurrentItem);
                    }
                    else
                    {
                        items.Add(item);
                    }
                }
            }

            object?selectedItem = null;

            _mainLevelTabs.SyncItems(items, (navItem, baseShellItem) =>
            {
                SetValues(baseShellItem, navItem);

                if (baseShellItem is not ShellSection shellSection)
                {
                    navItem.MenuItemsSource = null;
                    if (baseShellItem.Parent == VirtualView.CurrentItem)
                    {
                        selectedItem = navItem;
                    }

                    return;
                }

                var shellSectionItems = ((IShellSectionController)shellSection).GetItems();

                if (shellSection == VirtualView.CurrentItem)
                {
                    selectedItem = navItem;
                }

                if (shellSectionItems.Count <= 1)
                {
                    if (navItem.MenuItemsSource != null)
                    {
                        navItem.MenuItemsSource = null;
                    }
                }
                else
                {
                    navItem.MenuItemsSource ??= new ObservableCollection <NavigationViewItemViewModel>();
                    navItem
                    .MenuItemsSource
                    .SyncItems(shellSectionItems, (shellContentNavItem, shellContent) =>
                    {
                        SetValues(shellContent, shellContentNavItem);

                        if (shellSection == VirtualView.CurrentItem &&
                            shellContent == VirtualView.CurrentItem.CurrentItem)
                        {
                            selectedItem = shellContentNavItem;
                        }
                    });
                }

                void SetValues(BaseShellItem bsi, NavigationViewItemViewModel vm)
                {
                    vm.Content     = bsi.Title;
                    var iconSource = bsi.Icon?.ToIconSource(MauiContext !);

                    if (iconSource != null)
                    {
                        if (vm.Foreground != null)
                        {
                            iconSource.Foreground = vm.Foreground;
                        }
                        else if (PlatformView.Resources.TryGetValue("NavigationViewItemForeground", out object nviForeground) &&
                                 nviForeground is WBrush brush)
                        {
                            iconSource.Foreground = brush;
                        }
                    }

                    vm.Icon = iconSource?.CreateIconElement();
                }
            });