mirror of
https://github.com/yaobiao131/downkyicore.git
synced 2025-08-10 00:52:31 +00:00
feat: 首次完成测试
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姚彪
461
DownKyi/ViewModels/ViewMyToViewVideoViewModel.cs
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461
DownKyi/ViewModels/ViewMyToViewVideoViewModel.cs
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using System;
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using System.Collections;
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using System.Collections.ObjectModel;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using Avalonia.Media.Imaging;
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using DownKyi.Core.BiliApi.History;
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using DownKyi.Core.BiliApi.VideoStream;
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using DownKyi.Core.Storage;
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using DownKyi.Events;
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using DownKyi.Images;
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using DownKyi.Services;
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using DownKyi.Services.Download;
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using DownKyi.Utils;
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using DownKyi.ViewModels.PageViewModels;
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using Prism.Commands;
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using Prism.Events;
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using Prism.Regions;
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using Prism.Services.Dialogs;
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namespace DownKyi.ViewModels;
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public class ViewMyToViewVideoViewModel : ViewModelBase
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{
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public const string Tag = "PageMyToView";
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private CancellationTokenSource tokenSource;
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#region 页面属性申明
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private string pageName = Tag;
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public string PageName
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{
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get => pageName;
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set => SetProperty(ref pageName, value);
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}
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private VectorImage arrowBack;
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public VectorImage ArrowBack
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{
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get => arrowBack;
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set => SetProperty(ref arrowBack, value);
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}
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private VectorImage downloadManage;
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public VectorImage DownloadManage
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{
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get => downloadManage;
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set => SetProperty(ref downloadManage, value);
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}
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private bool contentVisibility;
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public bool ContentVisibility
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{
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get => contentVisibility;
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set => SetProperty(ref contentVisibility, value);
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}
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private ObservableCollection<ToViewMedia> medias;
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public ObservableCollection<ToViewMedia> Medias
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{
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get => medias;
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set => SetProperty(ref medias, value);
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}
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private bool isSelectAll;
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public bool IsSelectAll
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{
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get => isSelectAll;
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set => SetProperty(ref isSelectAll, value);
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}
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private bool loading;
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public bool Loading
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{
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get => loading;
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set => SetProperty(ref loading, value);
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}
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private bool loadingVisibility;
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public bool LoadingVisibility
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{
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get => loadingVisibility;
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set => SetProperty(ref loadingVisibility, value);
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}
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private bool noDataVisibility;
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public bool NoDataVisibility
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{
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get => noDataVisibility;
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set => SetProperty(ref noDataVisibility, value);
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}
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#endregion
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public ViewMyToViewVideoViewModel(IEventAggregator eventAggregator, IDialogService dialogService) : base(
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eventAggregator)
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{
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this.dialogService = dialogService;
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#region 属性初始化
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// 初始化loading
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Loading = true;
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LoadingVisibility = false;
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NoDataVisibility = false;
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ArrowBack = NavigationIcon.Instance().ArrowBack;
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ArrowBack.Fill = DictionaryResource.GetColor("ColorTextDark");
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// 下载管理按钮
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DownloadManage = ButtonIcon.Instance().DownloadManage;
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DownloadManage.Height = 24;
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DownloadManage.Width = 24;
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DownloadManage.Fill = DictionaryResource.GetColor("ColorPrimary");
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Medias = new ObservableCollection<ToViewMedia>();
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#endregion
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}
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#region 命令申明
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// 返回事件
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private DelegateCommand backSpaceCommand;
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public DelegateCommand BackSpaceCommand =>
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backSpaceCommand ?? (backSpaceCommand = new DelegateCommand(ExecuteBackSpace));
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/// <summary>
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/// 返回事件
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/// </summary>
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private void ExecuteBackSpace()
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{
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InitView();
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ArrowBack.Fill = DictionaryResource.GetColor("ColorText");
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// 结束任务
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tokenSource?.Cancel();
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NavigationParam parameter = new NavigationParam
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{
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ViewName = ParentView,
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ParentViewName = null,
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Parameter = null
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};
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eventAggregator.GetEvent<NavigationEvent>().Publish(parameter);
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}
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// 前往下载管理页面
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private DelegateCommand downloadManagerCommand;
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public DelegateCommand DownloadManagerCommand => downloadManagerCommand ??
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(downloadManagerCommand =
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new DelegateCommand(ExecuteDownloadManagerCommand));
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/// <summary>
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/// 前往下载管理页面
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/// </summary>
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private void ExecuteDownloadManagerCommand()
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{
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NavigationParam parameter = new NavigationParam
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{
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ViewName = ViewDownloadManagerViewModel.Tag,
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ParentViewName = Tag,
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Parameter = null
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};
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eventAggregator.GetEvent<NavigationEvent>().Publish(parameter);
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}
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// 全选按钮点击事件
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private DelegateCommand<object> selectAllCommand;
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public DelegateCommand<object> SelectAllCommand =>
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selectAllCommand ?? (selectAllCommand = new DelegateCommand<object>(ExecuteSelectAllCommand));
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/// <summary>
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/// 全选按钮点击事件
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/// </summary>
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/// <param name="parameter"></param>
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private void ExecuteSelectAllCommand(object parameter)
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{
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if (IsSelectAll)
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{
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foreach (var item in Medias)
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{
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item.IsSelected = true;
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}
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}
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else
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{
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foreach (var item in Medias)
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{
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item.IsSelected = false;
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}
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}
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}
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// 列表选择事件
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private DelegateCommand<object> mediasCommand;
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public DelegateCommand<object> MediasCommand =>
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mediasCommand ?? (mediasCommand = new DelegateCommand<object>(ExecuteMediasCommand));
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/// <summary>
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/// 列表选择事件
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/// </summary>
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/// <param name="parameter"></param>
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private void ExecuteMediasCommand(object parameter)
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{
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if (!(parameter is IList selectedMedia))
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{
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return;
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}
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if (selectedMedia.Count == Medias.Count)
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{
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IsSelectAll = true;
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}
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else
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{
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IsSelectAll = false;
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}
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}
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// 添加选中项到下载列表事件
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private DelegateCommand addToDownloadCommand;
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public DelegateCommand AddToDownloadCommand => addToDownloadCommand ??
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(addToDownloadCommand =
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new DelegateCommand(ExecuteAddToDownloadCommand));
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/// <summary>
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/// 添加选中项到下载列表事件
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/// </summary>
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private void ExecuteAddToDownloadCommand()
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{
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AddToDownload(true);
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}
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// 添加所有视频到下载列表事件
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private DelegateCommand addAllToDownloadCommand;
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public DelegateCommand AddAllToDownloadCommand => addAllToDownloadCommand ??
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(addAllToDownloadCommand =
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new DelegateCommand(ExecuteAddAllToDownloadCommand));
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/// <summary>
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/// 添加所有视频到下载列表事件
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/// </summary>
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private void ExecuteAddAllToDownloadCommand()
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{
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AddToDownload(false);
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}
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#endregion
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/// <summary>
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/// 添加到下载
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/// </summary>
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/// <param name="isOnlySelected"></param>
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private async void AddToDownload(bool isOnlySelected)
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{
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// 稍后再看里只有视频
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AddToDownloadService addToDownloadService = new AddToDownloadService(PlayStreamType.VIDEO);
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// 选择文件夹
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string directory = await addToDownloadService.SetDirectory(dialogService);
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// 视频计数
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int i = 0;
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await Task.Run(() =>
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{
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// 为了避免执行其他操作时，
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// Medias变化导致的异常
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var list = Medias.ToList();
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// 添加到下载
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foreach (var media in list)
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{
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// 只下载选中项，跳过未选中项
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if (isOnlySelected && !media.IsSelected)
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{
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continue;
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}
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/// 有分P的就下载全部
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// 开启服务
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VideoInfoService videoInfoService = new VideoInfoService(media.Bvid);
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addToDownloadService.SetVideoInfoService(videoInfoService);
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addToDownloadService.GetVideo();
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addToDownloadService.ParseVideo(videoInfoService);
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// 下载
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i += addToDownloadService.AddToDownload(eventAggregator, directory);
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}
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});
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if (directory == null)
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{
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return;
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}
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// 通知用户添加到下载列表的结果
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if (i <= 0)
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{
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eventAggregator.GetEvent<MessageEvent>().Publish(DictionaryResource.GetString("TipAddDownloadingZero"));
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}
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else
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{
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eventAggregator.GetEvent<MessageEvent>()
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.Publish(
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$"{DictionaryResource.GetString("TipAddDownloadingFinished1")}{i}{DictionaryResource.GetString("TipAddDownloadingFinished2")}");
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}
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}
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private async void UpdateToViewMediaList()
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{
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LoadingVisibility = true;
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NoDataVisibility = false;
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Medias.Clear();
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await Task.Run(() =>
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{
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CancellationToken cancellationToken = tokenSource.Token;
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var toViewList = ToView.GetToView();
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if (toViewList == null || toViewList.Count == 0)
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{
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LoadingVisibility = false;
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NoDataVisibility = true;
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return;
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}
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foreach (var toView in toViewList)
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{
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// 查询、保存封面
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string coverUrl = toView.Pic;
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Bitmap cover;
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if (coverUrl == null || coverUrl == "")
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{
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cover = null;
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}
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else
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{
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if (!coverUrl.ToLower().StartsWith("http"))
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{
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coverUrl = $"https:{toView.Pic}";
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}
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StorageCover storageCover = new StorageCover();
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cover = storageCover.GetCoverThumbnail(toView.Aid, toView.Bvid, toView.Cid, coverUrl, 160, 100);
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}
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// 获取用户头像
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long upMid = -1;
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string upName;
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Bitmap upHeader;
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if (toView.Owner != null && toView.Owner.Face != null)
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{
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upMid = toView.Owner.Mid;
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upName = toView.Owner.Name;
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StorageHeader storageHeader = new StorageHeader();
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upHeader = storageHeader.GetHeaderThumbnail(toView.Owner.Mid, upName, toView.Owner.Face, 24, 24);
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}
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else
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{
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upName = "";
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upHeader = null;
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}
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App.PropertyChangeAsync(() =>
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{
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ToViewMedia media = new ToViewMedia(eventAggregator)
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{
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Aid = toView.Aid,
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Bvid = toView.Bvid,
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UpMid = upMid,
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Cover = cover ??
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ImageHelper.LoadFromResource(
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new Uri($"avares://DownKyi/Resources/video-placeholder.png")),
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Title = toView.Title,
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UpName = upName,
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UpHeader = upHeader
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};
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Medias.Add(media);
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ContentVisibility = true;
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LoadingVisibility = false;
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NoDataVisibility = false;
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});
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// 判断是否该结束线程，若为true，跳出循环
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if (cancellationToken.IsCancellationRequested)
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{
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break;
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}
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}
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}, (tokenSource = new CancellationTokenSource()).Token);
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}
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/// <summary>
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/// 初始化页面数据
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/// </summary>
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private void InitView()
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{
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ArrowBack.Fill = DictionaryResource.GetColor("ColorTextDark");
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ContentVisibility = false;
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LoadingVisibility = false;
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NoDataVisibility = false;
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Medias.Clear();
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IsSelectAll = false;
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}
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/// <summary>
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/// 导航到页面时执行
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/// </summary>
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/// <param name="navigationContext"></param>
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public override void OnNavigatedTo(NavigationContext navigationContext)
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{
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base.OnNavigatedTo(navigationContext);
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ArrowBack.Fill = DictionaryResource.GetColor("ColorTextDark");
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DownloadManage = ButtonIcon.Instance().DownloadManage;
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DownloadManage.Height = 24;
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DownloadManage.Width = 24;
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DownloadManage.Fill = DictionaryResource.GetColor("ColorPrimary");
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// 根据传入参数不同执行不同任务
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long mid = navigationContext.Parameters.GetValue<long>("Parameter");
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if (mid == 0)
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{
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IsSelectAll = false;
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foreach (var media in Medias)
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{
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media.IsSelected = false;
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}
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return;
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}
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InitView();
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UpdateToViewMediaList();
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}
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}
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Reference in New Issue
Block a user