feat: 数据包下载 (WIP)

Plain Craft Launcher 2/Pages/PageDownload/PageDownloadLeft.xaml.vb

@@ -10,7 +10,7 @@
     ''' <summary>
     ''' 勾选事件改变页面。
     ''' </summary>
-    Private Sub PageCheck(sender As MyListItem, e As RouteEventArgs) Handles ItemInstall.Check, ItemClient.Check, ItemOptiFine.Check, ItemForge.Check, ItemNeoForge.Check, ItemLiteLoader.Check, ItemMod.Check, ItemFabric.Check, ItemPack.Check
+    Private Sub PageCheck(sender As MyListItem, e As RouteEventArgs) Handles ItemInstall.Check, ItemClient.Check, ItemOptiFine.Check, ItemForge.Check, ItemNeoForge.Check, ItemLiteLoader.Check, ItemMod.Check, ItemFabric.Check, ItemPack.Check, ItemDataPack.Check
         '尚未初始化控件属性时，sender.Tag 为 Nothing，会导致切换到页面 0
         '若使用 IsLoaded，则会导致模拟点击不被执行（模拟点击切换页面时，控件的 IsLoaded 为 False）
         If sender.Tag IsNot Nothing Then PageChange(Val(sender.Tag))
@@ -46,6 +46,9 @@
             Case FormMain.PageSubType.DownloadPack
                 If FrmDownloadPack Is Nothing Then FrmDownloadPack = New PageDownloadPack
                 Return FrmDownloadPack
+            Case FormMain.PageSubType.DownloadDataPack
+                If FrmDownloadDataPack Is Nothing Then FrmDownloadDataPack = New PageDownloadDataPack
+                Return FrmDownloadDataPack
             Case Else
                 Throw New Exception("未知的下载子页面种类：" & ID)
         End Select
@@ -114,6 +117,12 @@
                 CompProjectCache.Clear()
                 If FrmDownloadPack IsNot Nothing Then FrmDownloadPack.PageLoaderRestart()
                 ItemPack.Checked = True
+            Case FormMain.PageSubType.DownloadDataPack
+                PageDownloadDataPack.Storage = New CompProjectStorage
+                PageDownloadDataPack.Page = 0
+                CompProjectCache.Clear()
+                If FrmDownloadDataPack IsNot Nothing Then FrmDownloadDataPack.PageLoaderRestart()
+                ItemDataPack.Checked = True
             Case FormMain.PageSubType.DownloadClient
                 DlClientListLoader.Start(IsForceRestart:=True)
                 ItemClient.Checked = True