AOD: Use double tap coordinates to trigger Ambient Indication

Bug: 38386446
Test: Double tap on AOD, verify that it still works. On device that supports double tap coordinates, verify that double tapping on ambient music opens ambient music.
Change-Id: Ic75ba731a980c9598c85927e83d2032f01da4822
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/DozeParameters.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/DozeParameters.java
index d7e7abe..6b7397b 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/DozeParameters.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/DozeParameters.java
@@ -157,6 +157,10 @@
         return 2 * getPulseVisibleDuration();
     }
 
+    public boolean doubleTapReportsTouchCoordinates() {
+        return mContext.getResources().getBoolean(R.bool.doze_double_tap_reports_touch_coordinates);
+    }
+
 
     /**
      * Parses a spec of the form `1,2,3,!5,*`. The resulting object will match numbers that are
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
index 7564c82..aaa6447 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
@@ -32,7 +32,6 @@
 import static com.android.systemui.statusbar.phone.BarTransitions.MODE_TRANSPARENT;
 import static com.android.systemui.statusbar.phone.BarTransitions.MODE_WARNING;
 
-import android.R.style;
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.annotation.NonNull;
@@ -99,14 +98,11 @@
 import android.os.ServiceManager;
 import android.os.SystemClock;
 import android.os.SystemProperties;
-import android.os.SystemService;
 import android.os.Trace;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.os.Vibrator;
 import android.provider.Settings;
-import android.service.dreams.DreamService;
-import android.service.dreams.IDreamManager;
 import android.service.notification.NotificationListenerService;
 import android.service.notification.NotificationListenerService.RankingMap;
 import android.service.notification.StatusBarNotification;
@@ -120,7 +116,6 @@
 import android.util.Slog;
 import android.util.SparseArray;
 import android.util.SparseBooleanArray;
-import android.view.ContextThemeWrapper;
 import android.view.Display;
 import android.view.IWindowManager;
 import android.view.KeyEvent;
@@ -5302,6 +5297,37 @@
             mAnimateWakeup = animateWakeup;
         }
 
+        @Override
+        public void onDoubleTap(float screenX, float screenY) {
+            if (screenX > 0 && screenY > 0 && mAmbientIndicationContainer != null 
+                && mAmbientIndicationContainer.getVisibility() == View.VISIBLE) {
+                mAmbientIndicationContainer.getLocationOnScreen(mTmpInt2);
+                float viewX = screenX - mTmpInt2[0];
+                float viewY = screenY - mTmpInt2[1];
+                if (0 <= viewX && viewX <= mAmbientIndicationContainer.getWidth()
+                        && 0 <= viewY && viewY <= mAmbientIndicationContainer.getHeight()) {
+                    dispatchDoubleTap(viewX, viewY);
+                }
+            }
+        }
+
+        public void dispatchDoubleTap(float viewX, float viewY) {
+            dispatchTap(mAmbientIndicationContainer, viewX, viewY);
+            dispatchTap(mAmbientIndicationContainer, viewX, viewY);
+        }
+
+        private void dispatchTap(View view, float x, float y) {
+            long now = SystemClock.elapsedRealtime();
+            dispatchTouchEvent(view, x, y, now, MotionEvent.ACTION_DOWN);
+            dispatchTouchEvent(view, x, y, now, MotionEvent.ACTION_UP);
+        }
+
+        private void dispatchTouchEvent(View view, float x, float y, long now, int action) {
+            MotionEvent ev = MotionEvent.obtain(now, now, action, x, y, 0 /* meta */);
+            view.dispatchTouchEvent(ev);
+            ev.recycle();
+        }
+
         private boolean shouldAnimateWakeup() {
             return mAnimateWakeup;
         }