Unfurl media player on AOD=>lockscreen wakeup

Clip MediaContainerView to round rect with new height
when ExpandableView#actualHeight updates

Bug: 213503823
Test: MediaContainerTest
Test: press power button to wakeup, media player unfurls
Test: press power button to sleep, media player furls up

Change-Id: I58101a307f31fd5a90f05674352aad00c234a5fa

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/MediaContainerView.java

@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2020 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.systemui.statusbar.notification.stack;
-
-import android.animation.AnimatorListenerAdapter;
-import android.content.Context;
-import android.util.AttributeSet;
-
-import com.android.systemui.statusbar.notification.row.ExpandableView;
-
-/**
- * Root view to insert Lock screen media controls into the notification stack.
- */
-public class MediaContainerView extends ExpandableView {
-
-    public MediaContainerView(Context context, AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-    @Override
-    public long performRemoveAnimation(long duration, long delay, float translationDirection,
-            boolean isHeadsUpAnimation, float endLocation, Runnable onFinishedRunnable,
-            AnimatorListenerAdapter animationListener) {
-        return 0;
-    }
-
-    @Override
-    public void performAddAnimation(long delay, long duration, boolean isHeadsUpAppear,
-            Runnable onEnd) {
-        // No animation, it doesn't need it, this would be local
-    }
-}

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/MediaContainerView.kt

@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2022 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.systemui.statusbar.notification.stack
+
+import android.animation.AnimatorListenerAdapter
+import android.content.Context
+import android.content.res.Configuration
+import android.graphics.Canvas
+import android.graphics.Path
+import android.graphics.RectF
+import android.util.AttributeSet
+import com.android.systemui.R
+import com.android.systemui.statusbar.notification.row.ExpandableView
+
+/**
+ * Root view to insert Lock screen media controls into the notification stack.
+ */
+class MediaContainerView(context: Context, attrs: AttributeSet?) : ExpandableView(context, attrs) {
+
+    var cornerRadius = 0f
+    var clipHeight = 0
+    var clipRect = RectF()
+    var clipPath = Path()
+
+    init {
+        setWillNotDraw(false) // Run onDraw after invalidate.
+        updateResources()
+    }
+
+    override fun onConfigurationChanged(newConfig: Configuration?) {
+        super.onConfigurationChanged(newConfig)
+        updateResources()
+    }
+
+    private fun updateResources() {
+        cornerRadius = context.resources
+                .getDimensionPixelSize(R.dimen.notification_corner_radius).toFloat()
+    }
+
+    public override fun updateClipping() {
+        if (clipHeight != actualHeight) {
+            clipHeight = actualHeight
+        }
+        invalidate()
+    }
+
+    override fun onDraw(canvas: Canvas) {
+        super.onDraw(canvas)
+
+        val bounds = canvas.clipBounds
+        bounds.bottom = clipHeight
+        clipRect.set(bounds)
+
+        clipPath.reset()
+        clipPath.addRoundRect(clipRect, cornerRadius, cornerRadius, Path.Direction.CW)
+        canvas.clipPath(clipPath)
+    }
+
+
+    override fun performRemoveAnimation(duration: Long, delay: Long, translationDirection: Float,
+                                        isHeadsUpAnimation: Boolean, endLocation: Float,
+                                        onFinishedRunnable: Runnable?,
+                                        animationListener: AnimatorListenerAdapter?): Long {
+        return 0
+    }
+
+    override fun performAddAnimation(delay: Long, duration: Long, isHeadsUpAppear: Boolean,
+                                     onEnd: Runnable?) {
+        // No animation, it doesn't need it, this would be local
+    }
+}

packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/MediaContainerViewTest.kt

@@ -0,0 +1,38 @@
+package com.android.systemui.statusbar.notification.stack
+
+import android.testing.AndroidTestingRunner
+import android.testing.TestableLooper
+import android.view.LayoutInflater
+import androidx.test.filters.SmallTest
+import com.android.systemui.SysuiTestCase
+import com.android.systemui.R
+import junit.framework.Assert.assertTrue
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * Tests for {@link MediaContainView}.
+ */
+@SmallTest
+@RunWith(AndroidTestingRunner::class)
+@TestableLooper.RunWithLooper
+class MediaContainerViewTest : SysuiTestCase() {
+
+    lateinit var mediaContainerView : MediaContainerView
+
+    @Before
+    fun setUp() {
+        mediaContainerView = LayoutInflater.from(context).inflate(
+                R.layout.keyguard_media_container, null, false) as MediaContainerView
+    }
+
+    @Test
+    fun testUpdateClipping_updatesClipHeight() {
+        assertTrue(mediaContainerView.clipHeight == 0)
+
+        mediaContainerView.actualHeight = 10
+        mediaContainerView.updateClipping()
+        assertTrue(mediaContainerView.clipHeight == 10)
+    }
+}