Merge pull request #2667 from SpiritCroc/avatar-fallback

Fall back to initials avatar when image avatar doesn't work

Author: bmarty

changelog.d/2667.bugfix

@@ -0,0 +1 @@
+Fall back to name-based generated avatars when image avatars don't load.

libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/components/avatar/Avatar.kt

@@ -23,16 +23,21 @@ import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.SideEffect
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.platform.LocalInspectionMode
 import androidx.compose.ui.semantics.clearAndSetSemantics
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import coil.compose.AsyncImage
+import coil.compose.AsyncImagePainter
+import coil.compose.SubcomposeAsyncImage
+import coil.compose.SubcomposeAsyncImageContent
 import io.element.android.compound.theme.ElementTheme
 import io.element.android.libraries.designsystem.colors.AvatarColorsProvider
 import io.element.android.libraries.designsystem.preview.ElementThemedPreview
@@ -71,16 +76,34 @@ private fun ImageAvatar(
     modifier: Modifier = Modifier,
     contentDescription: String? = null,
 ) {
-    AsyncImage(
-        model = avatarData,
-        onError = {
-            Timber.e(it.result.throwable, "Error loading avatar $it\n${it.result}")
-        },
-        contentDescription = contentDescription,
-        contentScale = ContentScale.Crop,
-        placeholder = debugPlaceholderAvatar(),
-        modifier = modifier
-    )
+    if (LocalInspectionMode.current) {
+        // For compose previews, use debugPlaceholderAvatar()
+        // instead of falling back to initials avatar on load failure
+        AsyncImage(
+            model = avatarData,
+            contentDescription = contentDescription,
+            placeholder = debugPlaceholderAvatar(),
+            modifier = modifier
+        )
+    } else {
+        SubcomposeAsyncImage(
+            model = avatarData,
+            contentDescription = contentDescription,
+            contentScale = ContentScale.Crop,
+            modifier = modifier
+        ) {
+            when (val state = painter.state) {
+                is AsyncImagePainter.State.Success -> SubcomposeAsyncImageContent()
+                is AsyncImagePainter.State.Error -> {
+                    SideEffect {
+                        Timber.e(state.result.throwable, "Error loading avatar $state\n${state.result}")
+                    }
+                    InitialsAvatar(avatarData = avatarData)
+                }
+                else -> InitialsAvatar(avatarData = avatarData)
+            }
+        }
+    }
 }
 
 @Composable