[fenix] For https://github.com/mozilla-mobile/fenix/issues/23432 - Use the imageUrl as the favicon for a provided top site

app/src/main/java/org/mozilla/fenix/ext/Client.kt

@@ -0,0 +1,29 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.ext
+
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import mozilla.components.concept.fetch.Client
+import mozilla.components.concept.fetch.Request
+import java.io.IOException
+
+/**
+ * Given an image [url], fetches and returns a [Bitmap] if possible, otherwise null.
+ *
+ * @param url The image URL to fetch from.
+ */
+suspend fun Client.bitmapForUrl(url: String): Bitmap? = withContext(Dispatchers.IO) {
+    // Code below will cache it in Gecko's cache, which ensures that as long as we've fetched it once,
+    // we will be able to display this avatar as long as the cache isn't purged (e.g. via 'clear user data').
+    val body = try {
+        fetch(Request(url, useCaches = true)).body
+    } catch (e: IOException) {
+        return@withContext null
+    }
+    body.useStream { BitmapFactory.decodeStream(it) }
+}

app/src/main/java/org/mozilla/fenix/ext/String.kt

@@ -4,20 +4,13 @@
 
 package org.mozilla.fenix.ext
 
-import android.graphics.Bitmap
-import android.graphics.BitmapFactory
 import android.net.Uri
 import android.text.Editable
 import android.util.Patterns
 import android.webkit.URLUtil
 import androidx.core.net.toUri
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
-import mozilla.components.concept.fetch.Client
-import mozilla.components.concept.fetch.Request
 import mozilla.components.lib.publicsuffixlist.PublicSuffixList
 import mozilla.components.support.ktx.android.net.hostWithoutCommonPrefixes
-import java.io.IOException
 import java.net.IDN
 import java.util.Locale
 
@@ -110,14 +103,3 @@ fun String.simplifiedUrl(): String {
  * Returns an [Editable] for the provided string.
  */
 fun String.toEditable(): Editable = Editable.Factory.getInstance().newEditable(this)
-
-suspend fun bitmapForUrl(url: String, client: Client): Bitmap? = withContext(Dispatchers.IO) {
-    // Code below will cache it in Gecko's cache, which ensures that as long as we've fetched it once,
-    // we will be able to display this avatar as long as the cache isn't purged (e.g. via 'clear user data').
-    val body = try {
-        client.fetch(Request(url, useCaches = true)).body
-    } catch (e: IOException) {
-        return@withContext null
-    }
-    body.useStream { BitmapFactory.decodeStream(it) }
-}

app/src/main/java/org/mozilla/fenix/home/topsites/TopSiteItemViewHolder.kt

@@ -10,12 +10,18 @@ import android.view.MotionEvent
 import android.view.View
 import android.widget.PopupWindow
 import androidx.appcompat.content.res.AppCompatResources.getDrawable
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.Dispatchers.Main
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import mozilla.components.browser.menu.BrowserMenuBuilder
 import mozilla.components.browser.menu.item.SimpleBrowserMenuItem
 import mozilla.components.feature.top.sites.TopSite
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.databinding.TopSiteItemBinding
+import org.mozilla.fenix.ext.bitmapForUrl
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.loadIntoView
 import org.mozilla.fenix.home.sessioncontrol.TopSiteInteractor
@@ -72,6 +78,15 @@ class TopSiteItemViewHolder(
             binding.topSiteTitle.setCompoundDrawablesWithIntrinsicBounds(null, null, null, null)
         }
 
+        if (topSite is TopSite.Provided) {
+            CoroutineScope(IO).launch {
+                itemView.context.components.core.client.bitmapForUrl(topSite.imageUrl)?.let { bitmap ->
+                    withContext(Main) {
+                        binding.faviconImage.setImageBitmap(bitmap)
+                    }
+                }
+            }
+        } else {
             when (topSite.url) {
                 SupportUtils.POCKET_TRENDING_URL -> {
                     binding.faviconImage.setImageDrawable(getDrawable(itemView.context, R.drawable.ic_pocket))
@@ -95,6 +110,7 @@ class TopSiteItemViewHolder(
                     itemView.context.components.core.icons.loadIntoView(binding.faviconImage, topSite.url)
                 }
             }
+        }
 
         this.topSite = topSite
     }

app/src/main/java/org/mozilla/fenix/settings/account/AccountUiView.kt

@@ -114,7 +114,7 @@ class AccountUiView(
     private suspend fun toRoundedDrawable(
         url: String,
         context: Context
-    ) = bitmapForUrl(url, httpClient)?.let { bitmap ->
+    ) = httpClient.bitmapForUrl(url)?.let { bitmap ->
         RoundedBitmapDrawableFactory.create(context.resources, bitmap).apply {
             isCircular = true
             setAntiAlias(true)