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PCL-ISE/Plain Craft Launcher 2/Pages/PageDownload/PageDownloadMod.xaml.vb
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Public Class PageDownloadMod
Public Const PageSize = 40
''' <summary>
''' 在切换到该页面时自动设置的目标版本。
''' </summary>
Public Shared TargetVersion As McVersion = Nothing
''' <summary>
''' 在切换到该页面时自动设置的搜索框内的内容。
''' </summary>
Public Shared TargetName As String = Nothing
'加载器信息
Public Shared Loader As New LoaderTask(Of CompProjectRequest, Integer)("CompProject Mod", AddressOf CompProjectsGet, AddressOf LoaderInput) With {.ReloadTimeout = 60 * 1000}
Public Shared Storage As New CompProjectStorage
Public Shared Page As Integer = 0
Private IsLoaderInited As Boolean = False
Private Sub PageDownloadMod_Inited(sender As Object, e As EventArgs) Handles Me.Loaded
'不知道从 Initialized 改成 Loaded 会不会有问题,但用 Initialized 会导致初始的筛选器修改被覆盖回默认值
If TargetVersion IsNot Nothing Then
'设置目标
ResetFilter() '重置筛选器
TextSearchVersion.Text = TargetVersion.Version.McName
Dim GetTargetItemByName =
Function(Name As String) As MyComboBoxItem
For Each Item As MyComboBoxItem In ComboSearchLoader.Items
If Item.Content = Name Then Return Item
Next
Return ComboSearchLoader.Items(0)
End Function
If TargetVersion.Version.HasForge Then
ComboSearchLoader.SelectedItem = GetTargetItemByName("Forge")
ElseIf TargetVersion.Version.HasFabric Then
ComboSearchLoader.SelectedItem = GetTargetItemByName("Fabric")
ElseIf TargetVersion.Version.HasNeoForge Then
ComboSearchLoader.SelectedItem = GetTargetItemByName("NeoForge")
End If
TargetVersion = Nothing
If TargetName IsNot Nothing Then
'设置搜索框内容
TextSearchName.Text = TargetName
TargetName = Nothing
End If
'如果已经完成请求,则重新开始
If IsLoaderInited Then StartNewSearch()
PanScroll.ScrollToHome()
End If
'加载器初始化
If IsLoaderInited Then Return
IsLoaderInited = True
PageLoaderInit(Load, PanLoad, PanContent, PanAlways, Loader, AddressOf Load_OnFinish, AddressOf LoaderInput)
If McVersionHighest = -1 Then McVersionHighest = Math.Max(McVersionHighest, Integer.Parse(CType(TextSearchVersion.Items(1), MyComboBoxItem).Content.ToString.Split(".")(1)))
End Sub
Private Shared Function LoaderInput() As CompProjectRequest
Dim Request As New CompProjectRequest(CompType.Mod, Storage, (Page + 1) * PageSize)
If FrmDownloadMod IsNot Nothing Then
Dim ModLoader As CompModLoaderType = Val(FrmDownloadMod.ComboSearchLoader.SelectedItem.Tag)
Dim GameVersion As String = If(FrmDownloadMod.TextSearchVersion.Text = "全部 (也可自行输入)", Nothing,
If(FrmDownloadMod.TextSearchVersion.Text.Contains(".") OrElse FrmDownloadMod.TextSearchVersion.Text.Contains("w"), FrmDownloadMod.TextSearchVersion.Text, Nothing))
If GameVersion IsNot Nothing AndAlso GameVersion.Contains(".") AndAlso Val(GameVersion.Split(".")(1)) < 14 AndAlso '1.14-
ModLoader = CompModLoaderType.Forge Then '选择了 Forge
ModLoader = CompModLoaderType.Any '此时,视作没有筛选 Mod Loader(因为部分老 Mod 没有设置自己支持的加载器)
End If
If TargetName IsNot Nothing Then
FrmDownloadMod.TextSearchName.Text = TargetName
TargetName = Nothing
End If
With Request
.SearchText = FrmDownloadMod.TextSearchName.Text
.GameVersion = GameVersion
.Tag = FrmDownloadMod.ComboSearchTag.SelectedItem.Tag
.ModLoader = ModLoader
.Source = CType(Val(FrmDownloadMod.ComboSearchSource.SelectedItem.Tag), CompSourceType)
End With
End If
Return Request
End Function
'结果 UI 化
Private Sub Load_OnFinish()
Try
Log($"[Comp] 开始可视化 Mod 列表,已储藏 {Storage.Results.Count} 个结果,当前在第 {Page + 1} 页")
'列表项
PanProjects.Children.Clear()
For i = Math.Min(Page * PageSize, Storage.Results.Count - 1) To Math.Min((Page + 1) * PageSize - 1, Storage.Results.Count - 1)
PanProjects.Children.Add(Storage.Results(i).ToCompItem(Loader.Input.GameVersion Is Nothing, Loader.Input.ModLoader = CompModLoaderType.Any))
Next
'页码
CardPages.Visibility = If(Storage.Results.Count > 40 OrElse
Storage.CurseForgeOffset < Storage.CurseForgeTotal OrElse Storage.ModrinthOffset < Storage.ModrinthTotal,
Visibility.Visible, Visibility.Collapsed)
LabPage.Text = Page + 1
BtnPageFirst.IsEnabled = Page > 1
BtnPageFirst.Opacity = If(Page > 1, 1, 0.2)
BtnPageLeft.IsEnabled = Page > 0
BtnPageLeft.Opacity = If(Page > 0, 1, 0.2)
Dim IsRightEnabled As Boolean = '由于 WPF 的未知 bug,读取到的 IsEnabled 可能是错误的值(#3319)
Storage.Results.Count > PageSize * (Page + 1) OrElse
Storage.CurseForgeOffset < Storage.CurseForgeTotal OrElse Storage.ModrinthOffset < Storage.ModrinthTotal
BtnPageRight.IsEnabled = IsRightEnabled
BtnPageRight.Opacity = If(IsRightEnabled, 1, 0.2)
'错误信息
If Storage.ErrorMessage Is Nothing Then
HintError.Visibility = Visibility.Collapsed
Else
HintError.Visibility = Visibility.Visible
HintError.Text = Storage.ErrorMessage
End If
'强制返回顶部
PanBack.ScrollToTop()
Catch ex As Exception
Log(ex, "可视化 Mod 列表出错", LogLevel.Feedback)
End Try
End Sub
'自动重试
Private Sub Load_State(sender As Object, state As MyLoading.MyLoadingState, oldState As MyLoading.MyLoadingState) Handles Load.StateChanged
Select Case Loader.State
Case LoadState.Failed
Dim ErrorMessage As String = ""
If Loader.Error IsNot Nothing Then ErrorMessage = Loader.Error.Message
If ErrorMessage.Contains("不是有效的 json 文件") Then
Log("[Download] 下载的 Mod 列表 json 文件损坏,已自动重试", LogLevel.Debug)
PageLoaderRestart()
End If
End Select
End Sub
'切换页码
Private Sub BtnPageFirst_Click(sender As Object, e As RoutedEventArgs) Handles BtnPageFirst.Click
ChangePage(0)
End Sub
Private Sub BtnPageLeft_Click(sender As Object, e As RoutedEventArgs) Handles BtnPageLeft.Click
ChangePage(Page - 1)
End Sub
Private Sub BtnPageRight_Click(sender As Object, e As RoutedEventArgs) Handles BtnPageRight.Click
ChangePage(Page + 1)
End Sub
Private Sub ChangePage(NewPage As Integer)
CardPages.IsEnabled = False
Page = NewPage
FrmMain.BackToTop()
Log($"[Download] Mod 切换到第 {Page + 1} 页")
RunInThread(
Sub()
Thread.Sleep(100) '等待向上滚的动画结束
RunInUi(Sub() CardPages.IsEnabled = True)
Loader.Start()
End Sub)
End Sub
#Region "搜索"
'搜索按钮
Private Sub StartNewSearch() Handles BtnSearchRun.Click
Page = 0
If Loader.ShouldStart(LoaderInput()) Then Storage = New CompProjectStorage '避免连续搜索两次使得 CompProjectStorage 引用丢失(#1311)
Loader.Start()
End Sub
Private Sub EnterTrigger(sender As Object, e As KeyEventArgs) Handles TextSearchName.KeyDown, TextSearchVersion.KeyDown
If e.Key = Key.Enter Then StartNewSearch()
End Sub
'重置按钮
Private Sub ResetFilter() Handles BtnSearchReset.Click
TextSearchName.Text = ""
TextSearchVersion.Text = "全部 (也可自行输入)"
TextSearchVersion.SelectedIndex = 0
ComboSearchSource.SelectedIndex = 0
ComboSearchTag.SelectedIndex = 0
ComboSearchLoader.SelectedIndex = 0
Loader.LastFinishedTime = 0 '要求强制重新开始
End Sub
'版本选择
'#3067:当下拉菜单展开时,程序会被 WPF 挂起,因而无法更新 Grid 布局,所以必须延迟到下拉菜单收起后才能更新
Private Sub TextSearchVersion_TextChanged() Handles TextSearchVersion.TextChanged
If Not TextSearchVersion.IsDropDownOpen Then UpdateSearchLoaderVisibility()
End Sub
Private Sub UpdateSearchLoaderVisibility() Handles TextSearchVersion.DropDownClosed
If TextSearchVersion.Text.Contains(".") OrElse TextSearchVersion.Text.Contains("w") Then
ComboSearchLoader.Visibility = Visibility.Visible
Grid.SetColumnSpan(TextSearchVersion, 1)
Else
ComboSearchLoader.Visibility = Visibility.Collapsed
Grid.SetColumnSpan(TextSearchVersion, 2)
ComboSearchLoader.SelectedIndex = 0
End If
End Sub
#End Region
End Class