Kepp PreviewDataProvider instace over a configuration change

Add a view model, PreviewViewModel, to retain a PreviewDataProvider
instance.
Tangentally, move ChooserActivity#isImageType method into
MimeTypeClassifier (to avoid keep a link to the activity).

Fix: 281929002
Test: manual testing, vierify through injected debug logging that the
 object is not re-created.
Change-Id: I7be397089ca33e589a3ecbd6012929bfe3c5433a

2 files changed, 5 insertions, 16 deletions

diff --git a/java/tests/src/com/android/intentresolver/contentpreview/ChooserContentPreviewUiTest.kt b/java/tests/src/com/android/intentresolver/contentpreview/ChooserContentPreviewUiTest.kt
index 5a4b6c76..0bcd8423 100644
--- a/java/tests/src/com/android/intentresolver/contentpreview/ChooserContentPreviewUiTest.kt
+++ b/java/tests/src/com/android/intentresolver/contentpreview/ChooserContentPreviewUiTest.kt
@@ -16,7 +16,6 @@
 
 package com.android.intentresolver.contentpreview
 
-import android.content.ClipDescription
 import android.content.Intent
 import android.graphics.Bitmap
 import android.net.Uri
@@ -37,9 +36,6 @@ import org.mockito.Mockito.verify
 class ChooserContentPreviewUiTest {
     private val lifecycle = mock<Lifecycle>()
     private val previewData = mock<PreviewDataProvider>()
-    private val imageClassifier = MimeTypeClassifier { mimeType ->
-        mimeType != null && ClipDescription.compareMimeTypes(mimeType, "image/*")
-    }
     private val headlineGenerator = mock<HeadlineGenerator>()
     private val imageLoader =
         object : ImageLoader {
@@ -67,11 +63,10 @@ class ChooserContentPreviewUiTest {
                 lifecycle,
                 previewData,
                 Intent(Intent.ACTION_VIEW),
-                imageClassifier,
                 imageLoader,
                 actionFactory,
                 transitionCallback,
-                headlineGenerator
+                headlineGenerator,
             )
         assertThat(testSubject.preferredContentPreview)
             .isEqualTo(ContentPreviewType.CONTENT_PREVIEW_TEXT)
@@ -87,11 +82,10 @@ class ChooserContentPreviewUiTest {
                 lifecycle,
                 previewData,
                 Intent(Intent.ACTION_SEND),
-                imageClassifier,
                 imageLoader,
                 actionFactory,
                 transitionCallback,
-                headlineGenerator
+                headlineGenerator,
             )
         assertThat(testSubject.preferredContentPreview)
             .isEqualTo(ContentPreviewType.CONTENT_PREVIEW_FILE)
@@ -116,11 +110,10 @@ class ChooserContentPreviewUiTest {
                 lifecycle,
                 previewData,
                 Intent(Intent.ACTION_SEND).apply { putExtra(Intent.EXTRA_TEXT, "Shared text") },
-                imageClassifier,
                 imageLoader,
                 actionFactory,
                 transitionCallback,
-                headlineGenerator
+                headlineGenerator,
             )
         assertThat(testSubject.mContentPreviewUi)
             .isInstanceOf(FilesPlusTextContentPreviewUi::class.java)
@@ -145,11 +138,10 @@ class ChooserContentPreviewUiTest {
                 lifecycle,
                 previewData,
                 Intent(Intent.ACTION_SEND),
-                imageClassifier,
                 imageLoader,
                 actionFactory,
                 transitionCallback,
-                headlineGenerator
+                headlineGenerator,
             )
         assertThat(testSubject.preferredContentPreview)
             .isEqualTo(ContentPreviewType.CONTENT_PREVIEW_IMAGE)
diff --git a/java/tests/src/com/android/intentresolver/contentpreview/PreviewDataProviderTest.kt b/java/tests/src/com/android/intentresolver/contentpreview/PreviewDataProviderTest.kt
index 5be373b3..2c47efa5 100644
--- a/java/tests/src/com/android/intentresolver/contentpreview/PreviewDataProviderTest.kt
+++ b/java/tests/src/com/android/intentresolver/contentpreview/PreviewDataProviderTest.kt
@@ -16,7 +16,6 @@
 
 package com.android.intentresolver.contentpreview
 
-import android.content.ClipDescription
 import android.content.ContentInterface
 import android.content.Intent
 import android.database.MatrixCursor
@@ -44,9 +43,7 @@ import org.mockito.Mockito.verify
 @OptIn(ExperimentalCoroutinesApi::class)
 class PreviewDataProviderTest {
     private val contentResolver = mock<ContentInterface>()
-    private val mimeTypeClassifier = MimeTypeClassifier { mimeType ->
-        mimeType != null && ClipDescription.compareMimeTypes(mimeType, "image/*")
-    }
+    private val mimeTypeClassifier = DefaultMimeTypeClassifier
 
     private val lifecycleOwner = TestLifecycleOwner()
     private val dispatcher = UnconfinedTestDispatcher()