Merge "desktop-exploded-view: truncate the task header app title if it overflows" into main

quickstep/res/layout/task_header_view.xml

@@ -35,7 +35,8 @@
         app:layout_constraintTop_toTopOf="parent" />
     <TextView
         android:id="@+id/header_app_title"
-        android:layout_width="wrap_content"
+        android:layout_width="0dp"
+        android:ellipsize="end"
         android:layout_height="wrap_content"
         android:layout_marginStart="@dimen/task_thumbnail_header_margin_between_views"
         android:layout_marginEnd="@dimen/task_thumbnail_header_margin_between_views"
@@ -43,6 +44,7 @@
         android:text="@string/header_default_app_title"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toEndOf="@id/header_app_icon"
+        app:layout_constraintEnd_toStartOf="@id/header_close_button"
         app:layout_constraintTop_toTopOf="parent" />
     <ImageButton
         android:id="@+id/header_close_button"

quickstep/tests/multivalentScreenshotTests/src/com/android/quickstep/task/thumbnail/TaskHeaderViewScreenshotTest.kt

@@ -19,6 +19,7 @@ package com.android.quickstep.task.thumbnail
 import android.content.Context
 import android.graphics.drawable.BitmapDrawable
 import android.view.LayoutInflater
+import android.widget.FrameLayout
 import com.android.launcher3.R
 import com.android.quickstep.task.thumbnail.SplashHelper.createSplash
 import com.android.quickstep.views.TaskHeaderView
@@ -31,6 +32,7 @@ import platform.test.runner.parameterized.Parameters
 import platform.test.screenshot.DeviceEmulationSpec
 import platform.test.screenshot.Displays
 import platform.test.screenshot.ViewScreenshotTestRule
+import platform.test.screenshot.ViewScreenshotTestRule.Mode.WrapContent
 import platform.test.screenshot.getEmulatedDevicePathConfig
 
 /** Screenshot tests for [TaskHeaderView]. */
@@ -45,18 +47,42 @@ class TaskHeaderViewScreenshotTest(emulationSpec: DeviceEmulationSpec) {
 
     @Test
     fun taskHeaderView_showHeader() {
-        screenshotRule.screenshotTest("taskHeaderView_showHeader") { activity ->
+        screenshotRule.screenshotTest("taskHeaderView_showHeader", mode = WrapContent) { activity ->
             activity.actionBar?.hide()
-            createTaskHeaderView(activity).apply {
-                setState(
-                    TaskHeaderUiState.ShowHeader(
-                        TaskHeaderUiState.ThumbnailHeader(
-                            BitmapDrawable(activity.resources, createSplash()),
-                            "Example",
-                        ) {}
-                    )
+            val container = FrameLayout(activity)
+            val headerView = createTaskHeaderView(activity)
+
+            container.addView(headerView, CONTAINER_WIDTH, CONTAINER_HEIGHT)
+            headerView.setState(
+                TaskHeaderUiState.ShowHeader(
+                    TaskHeaderUiState.ThumbnailHeader(
+                        BitmapDrawable(activity.resources, createSplash()),
+                        "Example",
+                    ) {}
                 )
-            }
+            )
+            container
+        }
+    }
+
+    @Test
+    fun taskNarrowHeaderView_showHeader() {
+        screenshotRule.screenshotTest("taskNarrowHeaderView_showHeader", mode = WrapContent) {
+            activity ->
+            activity.actionBar?.hide()
+            val container = FrameLayout(activity)
+            val headerView = createTaskHeaderView(activity)
+
+            container.addView(headerView, CONTAINER_NARROW_WIDTH, CONTAINER_HEIGHT)
+            headerView.setState(
+                TaskHeaderUiState.ShowHeader(
+                    TaskHeaderUiState.ThumbnailHeader(
+                        BitmapDrawable(activity.resources, createSplash()),
+                        "Example",
+                    ) {}
+                )
+            )
+            container
         }
     }
 
@@ -68,6 +94,10 @@ class TaskHeaderViewScreenshotTest(emulationSpec: DeviceEmulationSpec) {
     }
 
     companion object {
+        private const val CONTAINER_HEIGHT = 65
+        private const val CONTAINER_WIDTH = 400
+        private const val CONTAINER_NARROW_WIDTH = 300
+
         @Parameters(name = "{0}")
         @JvmStatic
         fun getTestSpecs() =