Bug 1809798 - Loads the right wallpaper for the right orientation

Before, the orientation was taken from the application context which
didn't update during orientation change. Which caused to load the wrong
wallpaper when the phone was rotated. With these changes we can send
the correct orientation taken from the HomeActivity context.

app/src/main/java/org/mozilla/fenix/home/HomeFragment.kt

@@ -1013,7 +1013,7 @@ class HomeFragment : Fragment() {
                     // qualified type to load the image
                     val wallpaper = Wallpaper.Default.copy(name = wallpaperName)
                     val wallpaperImage =
-                        requireComponents.useCases.wallpaperUseCases.loadBitmap(wallpaper)
+                        context?.let { requireComponents.useCases.wallpaperUseCases.loadBitmap(it, wallpaper) }
                     wallpaperImage?.let {
                         it.scaleToBottomOfView(binding.wallpaperImageView)
                         binding.wallpaperImageView.isVisible = true

app/src/main/java/org/mozilla/fenix/wallpapers/WallpapersUseCases.kt

@@ -5,13 +5,14 @@
 package org.mozilla.fenix.wallpapers
 
 import android.content.Context
-import android.content.res.Configuration
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
+import androidx.annotation.UiContext
 import androidx.annotation.VisibleForTesting
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import mozilla.components.concept.fetch.Client
+import mozilla.components.support.utils.ext.isLandscape
 import org.mozilla.fenix.components.AppStore
 import org.mozilla.fenix.components.appstate.AppAction
 import org.mozilla.fenix.ext.settings
@@ -62,7 +63,6 @@ class WallpapersUseCases(
     val loadBitmap: LoadBitmapUseCase by lazy {
         DefaultLoadBitmapUseCase(
             getFilesDir = { context.filesDir },
-            getOrientation = { context.resources.configuration.orientation },
         )
     }
 
@@ -160,23 +160,25 @@ class WallpapersUseCases(
         /**
          * Load the bitmap for a [wallpaper], if available.
          *
+         * @param context The context used to get wallpaper orientation.
          * @param wallpaper The wallpaper to load a bitmap for.
          */
-        suspend operator fun invoke(wallpaper: Wallpaper): Bitmap?
+        suspend operator fun invoke(@UiContext context: Context, wallpaper: Wallpaper): Bitmap?
     }
 
     @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
     internal class DefaultLoadBitmapUseCase(
         private val getFilesDir: suspend () -> File,
-        private val getOrientation: () -> Int,
     ) : LoadBitmapUseCase {
-        override suspend fun invoke(wallpaper: Wallpaper): Bitmap? =
+        override suspend fun invoke(@UiContext context: Context, wallpaper: Wallpaper): Bitmap? =
-            loadWallpaperFromDisk(wallpaper)
+            loadWallpaperFromDisk(context, wallpaper)
 
-        private suspend fun loadWallpaperFromDisk(
+        @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
+        internal suspend fun loadWallpaperFromDisk(
+            @UiContext context: Context,
             wallpaper: Wallpaper,
         ): Bitmap? = Result.runCatching {
-            val path = wallpaper.getLocalPathFromContext()
+            val path = wallpaper.getLocalPathFromContext(context)
             withContext(Dispatchers.IO) {
                 val file = File(getFilesDir(), path)
                 BitmapFactory.decodeStream(file.inputStream())
@@ -187,18 +189,14 @@ class WallpapersUseCases(
          * Get the expected local path on disk for a wallpaper. This will differ depending
          * on orientation and app theme.
          */
-        private fun Wallpaper.getLocalPathFromContext(): String {
+        private fun Wallpaper.getLocalPathFromContext(@UiContext context: Context): String {
-            val orientation = if (isLandscape()) {
+            val orientation = if (context.isLandscape()) {
                 Wallpaper.ImageType.Landscape
             } else {
                 Wallpaper.ImageType.Portrait
             }
             return Wallpaper.getLocalPath(name, orientation)
         }
-
-        private fun isLandscape(): Boolean {
-            return getOrientation() == Configuration.ORIENTATION_LANDSCAPE
-        }
     }
 
     /**

app/src/test/java/org/mozilla/fenix/wallpapers/WallpapersUseCasesTest.kt

@@ -4,6 +4,7 @@
 
 package org.mozilla.fenix.wallpapers
 
+import android.content.Context
 import io.mockk.Runs
 import io.mockk.coEvery
 import io.mockk.coVerify
@@ -494,6 +495,21 @@ class WallpapersUseCasesTest {
         verify { appStore.dispatch(AppAction.WallpaperAction.UpdateCurrentWallpaper(wallpaper)) }
     }
 
+    @Test
+    fun `GIVEN the context WHEN bitmap is loaded THEN loadWallpaperFromDisk method is called with the correct context and wallpaper`() =
+        runTest {
+            val wallpaper: Wallpaper = mockk {
+                every { name } returns "test"
+            }
+            val context = mockk<Context>(relaxed = true)
+            val defaultLoadBitmapUseCase = spyk(WallpapersUseCases.DefaultLoadBitmapUseCase { mockFolder })
+            coEvery { defaultLoadBitmapUseCase.loadWallpaperFromDisk(context, wallpaper) } returns mockk()
+
+            defaultLoadBitmapUseCase.invoke(context, wallpaper)
+
+            coVerify { defaultLoadBitmapUseCase.loadWallpaperFromDisk(context, wallpaper) }
+        }
+
     private enum class TimeRelation {
         BEFORE,
         NOW,