Fix album-art-data fetching, bump version 0.2.4

Cargo.lock

@@ -1427,7 +1427,7 @@ dependencies = [
 
 [[package]]
 name = "mpd_info_screen"
-version = "0.2.3"
+version = "0.2.4"
 dependencies = [
  "ggez",
  "image",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mpd_info_screen"
-version = "0.2.3"
+version = "0.2.4"
 edition = "2018"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

README.md

@@ -9,7 +9,7 @@ counter, and the filename currently being played
 
 # Usage
 
-    mpd_info_screen 0.2.3
+    mpd_info_screen 0.2.4
     
     USAGE:
         mpd_info_screen [FLAGS] [OPTIONS] <host> [port]

src/display.rs

@@ -186,6 +186,12 @@ impl MPDDisplay {
             .try_read()
             .map_err(|_| String::from("ERROR get_image_from_data: Failed to get read_handle"))?;
 
+        if !read_handle.is_art_data_ready() {
+            return Err(String::from(
+                "ERROR get_image_from_data: art data not ready",
+            ));
+        }
+
         let mut image_format: image::ImageFormat = image::ImageFormat::Png;
         match read_handle.get_art_type().as_str() {
             "image/png" => image_format = image::ImageFormat::Png,

src/mpd_handler.rs

@@ -318,6 +318,10 @@ impl MPDHandler {
         self.art_data_type.clone()
     }
 
+    pub fn is_art_data_ready(&self) -> bool {
+        self.art_data.len() == self.art_data_size
+    }
+
     pub fn get_art_data(&self) -> &[u8] {
         &self.art_data
     }