call: lock screen rotation

Block screen rotation when video starts to avoid destroying view and
as result displaying black square.

Change-Id: I4391235808cb29189316ec67894af23fde0c3121

ring-android/app/src/main/java/cx/ring/fragments/CallFragment.java

@@ -27,6 +27,7 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
 import android.graphics.Bitmap;
 import android.graphics.PixelFormat;
@@ -162,6 +163,7 @@ public class CallFragment extends Fragment implements CallInterface, ContactDeta
     private MenuItem addContactBtn = null;
     private MenuItem flipCameraBtn = null;
     private MenuItem dialPadBtn = null;
+    private MenuItem changeScreenOrientationBtn = null;
 
     @BindView(R.id.camera_preview_surface)
     SurfaceView videoPreview = null;
@@ -409,6 +411,7 @@ public class CallFragment extends Fragment implements CallInterface, ContactDeta
         addContactBtn = m.findItem(R.id.menuitem_addcontact);
         flipCameraBtn = m.findItem(R.id.menuitem_camera_flip);
         dialPadBtn = m.findItem(R.id.menuitem_dialpad);
+        changeScreenOrientationBtn = m.findItem(R.id.menuitem_change_screen_orientation);
     }
 
     @Override
@@ -430,6 +433,9 @@ public class CallFragment extends Fragment implements CallInterface, ContactDeta
         if (dialPadBtn != null) {
             dialPadBtn.setVisible(ongoingCall && getConference() != null && !getConference().isIncoming());
         }
+        if (changeScreenOrientationBtn != null) {
+            changeScreenOrientationBtn.setVisible(mVideoSurface.getVisibility() == View.VISIBLE);
+        }
     }
 
     @Override
@@ -476,6 +482,9 @@ public class CallFragment extends Fragment implements CallInterface, ContactDeta
                         mNumeralDialEditText,
                         InputMethodManager.SHOW_IMPLICIT);
                 break;
+            case R.id.menuitem_change_screen_orientation:
+                changeScreenOrientation();
+                break;
         }
         return true;
     }
@@ -807,6 +816,7 @@ public class CallFragment extends Fragment implements CallInterface, ContactDeta
                 contactBubbleLayout.setVisibility(View.GONE);
                 Conference c = getConference();
                 application.videoSurfaces.put(c.getId(), new WeakReference<>(holder));
+                blockSensorScreenRotation();
                 try {
                     mCallbacks.getRemoteService().videoSurfaceAdded(c.getId());
                 } catch (RemoteException e) {
@@ -1113,6 +1123,29 @@ public class CallFragment extends Fragment implements CallInterface, ContactDeta
         }
     }
 
+    public void changeScreenOrientation() {
+        int currentOrientation = getResources().getConfiguration().orientation;
+        if (currentOrientation == Configuration.ORIENTATION_LANDSCAPE) {
+            getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
+        } else {
+            getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
+        }
+    }
+
+    private void blockSensorScreenRotation() {
+        changeScreenOrientationBtn.setVisible(true);
+        int currentOrientation = getResources().getConfiguration().orientation;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
+            getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);
+            return;
+        }
+        if (currentOrientation == Configuration.ORIENTATION_LANDSCAPE) {
+            getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
+        } else {
+            getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
+        }
+    }
+
     /**
      * Helper accessor that check nullity or emptiness of components to access first call participant
      *

ring-android/app/src/main/res/drawable/ic_screen_rotation_white.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:pathData="M16.48,2.52c3.27,1.55 5.61,4.72 5.97,8.48h1.5C23.44,4.84 18.29,0 12,0l-0.66,0.03 3.81,3.81 1.33,-1.32zM10.23,1.75c-0.59,-0.59 -1.54,-0.59 -2.12,0L1.75,8.11c-0.59,0.59 -0.59,1.54 0,2.12l12.02,12.02c0.59,0.59 1.54,0.59 2.12,0l6.36,-6.36c0.59,-0.59 0.59,-1.54 0,-2.12L10.23,1.75zM14.83,21.19L2.81,9.17l6.36,-6.36 12.02,12.02 -6.36,6.36zM7.52,21.48C4.25,19.94 1.91,16.76 1.55,13L0.05,13C0.56,19.16 5.71,24 12,24l0.66,-0.03 -3.81,-3.81 -1.33,1.32z"
+        android:fillColor="#FFFFFF"/>
+</vector>

ring-android/app/src/main/res/menu/ac_call.xml

@@ -33,4 +33,10 @@
         app:showAsAction="ifRoom"
         android:icon="@drawable/ic_dialpad_white"
         android:title="@string/dial_numeric_pad"/>
+
+    <item
+        android:id="@+id/menuitem_change_screen_orientation"
+        app:showAsAction="always"
+        android:icon="@drawable/ic_screen_rotation_white"
+        android:title="@string/ab_action_change_screen_orientation" />
 </menu>
\ No newline at end of file

ring-android/app/src/main/res/values/strings.xml

@@ -120,6 +120,7 @@ along with this program; if not, write to the Free Software
     <string name="ab_action_contact_add_question">Add to contacts ?</string>
     <string name="ab_action_audio_call">Audio call</string>
     <string name="ab_action_video_call">Video call</string>
+    <string name="ab_action_change_screen_orientation">Change screen orientation</string>
     <string name="share_via">Share via</string>
     <string name="write_a_message">Write a message</string>
     <string name="scan_qr">Scan QR Code</string>