Add thumbnail blur view for ripple reveal effect in the screenshot thumbnail

Bug: 335315940
Bug: 329659738
Test: Manual
Flag: ACONFIG com.android.systemui.screenshot_shelf_ui2 TRUNKFOOD
Change-Id: I5b998ca1d91ab07a06fa4888433406baa6d45944

4 files changed, 22 insertions, 1 deletions

diff --git a/packages/SystemUI/res/layout/screenshot_shelf.xml b/packages/SystemUI/res/layout/screenshot_shelf.xml
index 7adfa6ca1c29..e778c77d63a5 100644
--- a/packages/SystemUI/res/layout/screenshot_shelf.xml
+++ b/packages/SystemUI/res/layout/screenshot_shelf.xml
@@ -84,6 +84,22 @@
             android:clickable="true"
             app:layout_constraintStart_toStartOf="@id/screenshot_preview_border"
             app:layout_constraintBottom_toBottomOf="@id/screenshot_preview_border"/>
+        <!--  Keep the same dimension with screenshot_preview.  -->
+        <ImageView
+            android:id="@+id/screenshot_preview_blur"
+            android:layout_width="@dimen/overlay_x_scale"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="@dimen/overlay_border_width"
+            android:layout_marginBottom="@dimen/overlay_border_width"
+            android:layout_gravity="center"
+            android:elevation="4dp"
+            android:contentDescription="@string/screenshot_edit_description"
+            android:scaleType="fitEnd"
+            android:background="@drawable/overlay_preview_background"
+            android:adjustViewBounds="true"
+            android:visibility="invisible"
+            app:layout_constraintStart_toStartOf="@id/screenshot_preview_border"
+            app:layout_constraintBottom_toBottomOf="@id/screenshot_preview_border"/>
         <ImageView
             android:id="@+id/screenshot_badge"
             android:layout_width="56dp"
diff --git a/packages/SystemUI/src/com/android/systemui/screenshot/ScreenshotShelfViewProxy.kt b/packages/SystemUI/src/com/android/systemui/screenshot/ScreenshotShelfViewProxy.kt
index 9b754f3271a7..9b5e71827ead 100644
--- a/packages/SystemUI/src/com/android/systemui/screenshot/ScreenshotShelfViewProxy.kt
+++ b/packages/SystemUI/src/com/android/systemui/screenshot/ScreenshotShelfViewProxy.kt
@@ -103,7 +103,7 @@ constructor(
         }
         screenshotPreview = view.screenshotPreview
         thumbnailObserver.setViews(
-            view.screenshotPreview,
+            view.blurredScreenshotPreview,
             view.requireViewById(R.id.screenshot_preview_border)
         )
     }
diff --git a/packages/SystemUI/src/com/android/systemui/screenshot/ui/ScreenshotShelfView.kt b/packages/SystemUI/src/com/android/systemui/screenshot/ui/ScreenshotShelfView.kt
index 4437bf533353..21ac23b1ce15 100644
--- a/packages/SystemUI/src/com/android/systemui/screenshot/ui/ScreenshotShelfView.kt
+++ b/packages/SystemUI/src/com/android/systemui/screenshot/ui/ScreenshotShelfView.kt
@@ -35,6 +35,7 @@ import kotlin.math.max
 class ScreenshotShelfView(context: Context, attrs: AttributeSet? = null) :
     FrameLayout(context, attrs) {
     lateinit var screenshotPreview: ImageView
+    lateinit var blurredScreenshotPreview: ImageView
     private lateinit var screenshotStatic: ViewGroup
     var onTouchInterceptListener: ((MotionEvent) -> Boolean)? = null
 
@@ -48,6 +49,7 @@ class ScreenshotShelfView(context: Context, attrs: AttributeSet? = null) :
         // Get focus so that the key events go to the layout.
         isFocusableInTouchMode = true
         screenshotPreview = requireViewById(R.id.screenshot_preview)
+        blurredScreenshotPreview = requireViewById(R.id.screenshot_preview_blur)
         screenshotStatic = requireViewById(R.id.screenshot_static)
         actionsContainerBackground = requireViewById(R.id.actions_container_background)
         dismissButton = requireViewById(R.id.screenshot_dismiss_button)
diff --git a/packages/SystemUI/src/com/android/systemui/screenshot/ui/binder/ScreenshotShelfViewBinder.kt b/packages/SystemUI/src/com/android/systemui/screenshot/ui/binder/ScreenshotShelfViewBinder.kt
index 734a530efea7..bc35e6b17345 100644
--- a/packages/SystemUI/src/com/android/systemui/screenshot/ui/binder/ScreenshotShelfViewBinder.kt
+++ b/packages/SystemUI/src/com/android/systemui/screenshot/ui/binder/ScreenshotShelfViewBinder.kt
@@ -55,8 +55,10 @@ object ScreenshotShelfViewBinder {
         view.onTouchInterceptListener = { swipeGestureListener.onMotionEvent(it) }
 
         val previewView: ImageView = view.requireViewById(R.id.screenshot_preview)
+        val previewViewBlur: ImageView = view.requireViewById(R.id.screenshot_preview_blur)
         val previewBorder = view.requireViewById<View>(R.id.screenshot_preview_border)
         previewView.clipToOutline = true
+        previewViewBlur.clipToOutline = true
         val actionsContainer: LinearLayout = view.requireViewById(R.id.screenshot_actions)
         val dismissButton = view.requireViewById<View>(R.id.screenshot_dismiss_button)
         dismissButton.visibility = if (viewModel.showDismissButton) View.VISIBLE else View.GONE
@@ -72,6 +74,7 @@ object ScreenshotShelfViewBinder {
                         viewModel.preview.collect { bitmap ->
                             if (bitmap != null) {
                                 setScreenshotBitmap(previewView, bitmap)
+                                setScreenshotBitmap(previewViewBlur, bitmap)
                                 previewView.visibility = View.VISIBLE
                                 previewBorder.visibility = View.VISIBLE
                             } else {