Port 'HTTP Image' demo to Python (#62)

demos/HTTP Image/code.rs

@@ -5,6 +5,7 @@ use crate::workbench;
 use glib::source::Priority;
 use gtk::{gdk, glib};
 use soup::prelude::*;
+use soup::Status;
 
 pub fn main() {
     glib::spawn_future_local(async_main());
@@ -27,12 +28,8 @@ async fn get_image_bytes(url: &str) -> glib::Bytes {
         .await
         .unwrap();
 
-    if message.status_code() != 200 {
-        panic!(
-            "Got {}, {:?}",
-            message.status_code(),
-            message.reason_phrase()
-        );
+    if message.status() != Status::Ok {
+        panic!("Got {}, {:?}", message.status(), message.reason_phrase());
     }
     image_bytes
 }

demos/HTTP Image/main.js

@@ -22,10 +22,14 @@ async function getImageBytes(url) {
     method: "GET",
     uri: GLib.Uri.parse(url, GLib.UriFlags.NONE),
   });
-  const bytes = await session.send_and_read_async(message, null, null);
-  const { status_code, reason_phrase } = message;
-  if (status_code !== 200) {
-    throw new Error(`Got ${status_code}, ${reason_phrase}`);
+  const bytes = await session.send_and_read_async(
+    message,
+    GLib.PRIORITY_DEFAULT,
+    null,
+  );
+  const status = message.get_status();
+  if (status !== Soup.Status.OK) {
+    throw new Error(`Got ${status}, ${message.reason_phrase}`);
   }
   return bytes;
 }

demos/HTTP Image/main.py

@@ -0,0 +1,31 @@
+import gi
+
+gi.require_version("Gdk", "4.0")
+gi.require_version("Soup", "3.0")
+from gi.repository import GLib, Gdk, Soup
+import workbench
+
+# https://picsum.photos/
+IMAGE_URL = "https://picsum.photos/800"
+
+
+def on_receive_bytes(session, result, message):
+    bytes = session.send_and_read_finish(result)
+    if message.get_status() != Soup.Status.OK:
+        raise Exception(f"Got {message.get_status()}, {message.get_reason_phrase()}")
+    texture = Gdk.Texture.new_from_bytes(bytes)
+    workbench.builder.get_object("picture").set_paintable(texture)
+
+
+def get_image_bytes(url):
+    session = Soup.Session()
+    message = Soup.Message(
+        method="GET",
+        uri=GLib.Uri.parse(url, GLib.UriFlags.NONE),
+    )
+    session.send_and_read_async(
+        message, GLib.PRIORITY_DEFAULT, None, on_receive_bytes, message
+    )
+
+
+get_image_bytes(IMAGE_URL)

demos/HTTP Image/main.vala

@@ -24,11 +24,11 @@ private async Bytes ? get_image_bytes (string url) throws Error {
 
     Bytes image_bytes = yield session.send_and_read_async (message, Priority.DEFAULT, null);
 
-    uint status_code = message.status_code;
+    Soup.Status status = message.get_status ();
     string reason = message.reason_phrase;
 
-    if (status_code != 200) {
-        throw new MessageError.FAILED (@"Got $status_code: $reason");
+    if (status != Soup.Status.OK) {
+        throw new MessageError.FAILED (@"Got $status: $reason");
     }
 
     return image_bytes;