Use new nio AsyncClient.mxc_to_http()

Has the correct behavior for all servers,
e.g. mxc://privacytoosl.io/id → https://chat.privacytools.io/...

TODO.md

@@ -1,8 +1,9 @@
 - Media
-  - Verify things work with chat.privacytools.io (subdomain weirdness)
+  - Upload progression and pausing 
   - Confirmation box after picking file to upload
-  - Handle upload/set avatar errors: bad path, is a dir, file too big, etc
-  - Show real progression for mxc thumbnail loadings, uploads and downloads
+  - Handle set avatar upload errors
+  - Show real progression for mxc thumbnail loadings
+  - Support encrypted m.file
 
   - Show reason under broken thumbnail icons
   - Support m.file thumbnails

src/python/backend.py

@@ -136,11 +136,6 @@ class Backend:
         return hsluv.hsluv_to_rgb([hue, saturation, lightness])
 
 
-    @staticmethod
-    async def mxc_to_http(mxc: str) -> Optional[str]:
-        return nio.Api.mxc_to_http(mxc)
-
-
     async def load_settings(self) -> tuple:
         from .config_files import Theme
         settings = await self.ui_settings.read()

src/python/media_cache.py

@@ -40,11 +40,6 @@ class Media:
             raise ValueError(f"Invalid mxc URI: {self.mxc}")
 
 
-    @property
-    def http(self) -> str:
-        return nio.Api.mxc_to_http(self.mxc)
-
-
     @property
     def local_path(self) -> Path:
         parsed = urlparse(self.mxc)

src/qml/Chat/Timeline/EventImage.qml

@@ -57,7 +57,8 @@ HMxcImage {
         let isMxc  = toOpen.startsWith("mxc://")
 
         isMxc ?
-        py.callCoro("mxc_to_http", [toOpen], callback) : callback(toOpen)
+        py.callClientCoro(chatPage.userId, "mxc_to_http", [toOpen], callback) :
+        callback(toOpen)
     }