Add headline view argument to content preview UI

"Sticky" headline is one of the requirements of the scrollable preview
feature. Currently headling row is included in every preview type we
have and to be "sticky" it should be moved out of all of them. This
change is a preparation work that makes all of the preview UI
controllers aware of a possible external headline row (but no actual
external headline view is used).

Bug: 287102904
Test: manual testing of all preivew types checking that there are no
regressions
Test: atest com.android.intentresolver.contentpreview

Change-Id: Ib6110aaa82246e3354fdce18f431ab1c116e7b73

4 files changed, 171 insertions, 3 deletions

diff --git a/java/tests/src/com/android/intentresolver/contentpreview/FileContentPreviewUiTest.kt b/java/tests/src/com/android/intentresolver/contentpreview/FileContentPreviewUiTest.kt
new file mode 100644
index 00000000..6409da8a
--- /dev/null
+++ b/java/tests/src/com/android/intentresolver/contentpreview/FileContentPreviewUiTest.kt
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.intentresolver.contentpreview
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.platform.app.InstrumentationRegistry
+import com.android.intentresolver.R
+import com.android.intentresolver.mock
+import com.android.intentresolver.whenever
+import com.android.intentresolver.widget.ActionRow
+import com.google.common.truth.Truth
+import java.util.function.Consumer
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class FileContentPreviewUiTest {
+    private val fileCount = 2
+    private val text = "Sharing 2 files"
+    private val actionFactory =
+        object : ChooserContentPreviewUi.ActionFactory {
+            override fun getEditButtonRunnable(): Runnable? = null
+            override fun getCopyButtonRunnable(): Runnable? = null
+            override fun createCustomActions(): List<ActionRow.Action> = emptyList()
+            override fun getModifyShareAction(): ActionRow.Action? = null
+            override fun getExcludeSharedTextAction(): Consumer<Boolean> = Consumer<Boolean> {}
+        }
+    private val headlineGenerator =
+        mock<HeadlineGenerator> { whenever(getFilesHeadline(fileCount)).thenReturn(text) }
+
+    private val context
+        get() = InstrumentationRegistry.getInstrumentation().context
+
+    @Test
+    fun test_display_titleIsDisplayed() {
+        val testSubject =
+            FileContentPreviewUi(
+                fileCount,
+                actionFactory,
+                headlineGenerator,
+            )
+
+        val layoutInflater = LayoutInflater.from(context)
+        val gridLayout = layoutInflater.inflate(R.layout.chooser_grid, null, false) as ViewGroup
+
+        val previewView =
+            testSubject.display(
+                context.resources,
+                layoutInflater,
+                gridLayout,
+                /*headlineViewParent=*/ null
+            )
+
+        Truth.assertThat(previewView).isNotNull()
+        val headlineView = previewView?.findViewById<TextView>(R.id.headline)
+        Truth.assertThat(headlineView).isNotNull()
+        Truth.assertThat(headlineView?.text).isEqualTo(text)
+    }
+}
diff --git a/java/tests/src/com/android/intentresolver/contentpreview/FilesPlusTextContentPreviewUiTest.kt b/java/tests/src/com/android/intentresolver/contentpreview/FilesPlusTextContentPreviewUiTest.kt
index fe13a215..1144e3c9 100644
--- a/java/tests/src/com/android/intentresolver/contentpreview/FilesPlusTextContentPreviewUiTest.kt
+++ b/java/tests/src/com/android/intentresolver/contentpreview/FilesPlusTextContentPreviewUiTest.kt
@@ -167,7 +167,7 @@ class FilesPlusTextContentPreviewUiTest {
         val gridLayout = layoutInflater.inflate(R.layout.chooser_grid, null, false) as ViewGroup
 
         val previewView =
-            testSubject.display(context.resources, LayoutInflater.from(context), gridLayout)
+            testSubject.display(context.resources, LayoutInflater.from(context), gridLayout, null)
 
         verify(headlineGenerator, times(1)).getFilesHeadline(sharedFileCount)
         verify(headlineGenerator, never()).getImagesHeadline(sharedFileCount)
@@ -201,7 +201,12 @@ class FilesPlusTextContentPreviewUiTest {
         val gridLayout = layoutInflater.inflate(R.layout.chooser_grid, null, false) as ViewGroup
 
         loadedFileMetadata?.let(testSubject::updatePreviewMetadata)
-        return testSubject.display(context.resources, LayoutInflater.from(context), gridLayout)
+        return testSubject.display(
+            context.resources,
+            LayoutInflater.from(context),
+            gridLayout,
+            /*headlineViewParent=*/ null
+        )
     }
 
     private fun createFileInfosWithMimeTypes(vararg mimeTypes: String): List<FileInfo> {
diff --git a/java/tests/src/com/android/intentresolver/contentpreview/TextContentPreviewUiTest.kt b/java/tests/src/com/android/intentresolver/contentpreview/TextContentPreviewUiTest.kt
new file mode 100644
index 00000000..69053f73
--- /dev/null
+++ b/java/tests/src/com/android/intentresolver/contentpreview/TextContentPreviewUiTest.kt
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.intentresolver.contentpreview
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.lifecycle.testing.TestLifecycleOwner
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.platform.app.InstrumentationRegistry
+import com.android.intentresolver.R
+import com.android.intentresolver.mock
+import com.android.intentresolver.whenever
+import com.android.intentresolver.widget.ActionRow
+import com.google.common.truth.Truth.assertThat
+import java.util.function.Consumer
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class TextContentPreviewUiTest {
+    private val text = "Shared Text"
+    private val title = "Preview Title"
+    private val lifecycleOwner = TestLifecycleOwner()
+    private val actionFactory =
+        object : ChooserContentPreviewUi.ActionFactory {
+            override fun getEditButtonRunnable(): Runnable? = null
+            override fun getCopyButtonRunnable(): Runnable? = null
+            override fun createCustomActions(): List<ActionRow.Action> = emptyList()
+            override fun getModifyShareAction(): ActionRow.Action? = null
+            override fun getExcludeSharedTextAction(): Consumer<Boolean> = Consumer<Boolean> {}
+        }
+    private val imageLoader = mock<ImageLoader>()
+    private val headlineGenerator =
+        mock<HeadlineGenerator> { whenever(getTextHeadline(text)).thenReturn(text) }
+
+    private val context
+        get() = InstrumentationRegistry.getInstrumentation().context
+
+    @Test
+    fun test_display_headlineIsDisplayed() {
+        val testSubject =
+            TextContentPreviewUi(
+                lifecycleOwner.lifecycle,
+                text,
+                title,
+                /*previewThumbnail=*/ null,
+                actionFactory,
+                imageLoader,
+                headlineGenerator,
+            )
+        val layoutInflater = LayoutInflater.from(context)
+        val gridLayout = layoutInflater.inflate(R.layout.chooser_grid, null, false) as ViewGroup
+
+        val previewView =
+            testSubject.display(
+                context.resources,
+                layoutInflater,
+                gridLayout,
+                /*headlineViewParent=*/ null
+            )
+
+        assertThat(previewView).isNotNull()
+        val headlineView = previewView?.findViewById<TextView>(R.id.headline)
+        assertThat(headlineView).isNotNull()
+        assertThat(headlineView?.text).isEqualTo(text)
+    }
+}
diff --git a/java/tests/src/com/android/intentresolver/contentpreview/UnifiedContentPreviewUiTest.kt b/java/tests/src/com/android/intentresolver/contentpreview/UnifiedContentPreviewUiTest.kt
index e7de0b7b..6b22b850 100644
--- a/java/tests/src/com/android/intentresolver/contentpreview/UnifiedContentPreviewUiTest.kt
+++ b/java/tests/src/com/android/intentresolver/contentpreview/UnifiedContentPreviewUiTest.kt
@@ -159,7 +159,12 @@ class UnifiedContentPreviewUiTest {
             val layoutInflater = LayoutInflater.from(context)
             val gridLayout = layoutInflater.inflate(chooser_grid, null, false) as ViewGroup
 
-            testSubject.display(context.resources, LayoutInflater.from(context), gridLayout)
+            testSubject.display(
+                context.resources,
+                LayoutInflater.from(context),
+                gridLayout,
+                /*headlineViewParent=*/ null
+            )
             emptySourceFlow.tryEmit(endMarker)
         }
     }