Add import from NewPipe-button

src/ChannelProvider/__init__.py

@@ -49,3 +49,6 @@ class ChannelProvider:
     def prepend_channel(self, channel: Channel) -> int:
         self.m_channels.insert(0, channel)
         return len(self.m_channels)
+
+    def set_channels(self, channels: list[Channel]) -> None:
+        self.m_channels = channels

src/main.py

@@ -95,6 +95,25 @@ class Cast(wx.Frame):
 
         return providers
 
+    def show_importer(self, _) -> None:
+
+        with wx.FileDialog(self, "Open Newpipe json file", wildcard="Json files (*.json)|*.json",
+                       style=wx.FD_OPEN | wx.FD_FILE_MUST_EXIST) as file_dialog:
+
+            if file_dialog.ShowModal() == wx.ID_CANCEL:
+                return     # the user changed their mind
+
+        # Proceed loading the file chosen by the user
+        subfile = file_dialog.GetPath()
+        channels = list()
+        if os.path.isfile(subfile):
+            import_from_newpipe(subfile)
+            subscriptions = get_subscriptions()
+            for channel in subscriptions:
+                channels.append(YouTube.YouTube(channel[0], channel[1]))
+            self.m_providers[1].set_channels(channels)
+            self.show_channel_list(None,self.m_selected_provider_index)
+
     def show_provider_list(self, _) -> None:
         self.m_sizer.Clear(delete_windows=True)
         self.m_sizer = wx.BoxSizer(wx.VERTICAL)
@@ -130,6 +149,12 @@ class Cast(wx.Frame):
         #self.m_sizer.AddSpacer(SPACER_HEIGHT * 4)
         bck_callback = lambda event: self.show_provider_list(event)
         self.add_back_button(bck_callback)
+
+        if self.m_selected_provider.get_name() == "YouTube":
+            importbtn = wx.Button(self.m_panel, -1, label="Import from NewPipe",size=(WIDTH, BTN_HEIGHT))
+            importbtn.Bind(wx.EVT_BUTTON, lambda event: self.show_importer(event))
+            self.m_sizer.Add(importbtn)
+
         channel_index = 0
 
         for channel in self.m_selected_provider.get_channels():