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Commit 89c2cb6f authored by Michael Wright's avatar Michael Wright
Browse files

Monitor MediaRouter for remote display connections. 

Since we're reusing the cast tile for screen sharing we need to make sure there's only ever one
mirroring presentation going on at a time.

Bug: 9905068
Change-Id: I249932d0f8853880dd453eb57c2a258e6ae952b0
parent c55214a9

services/core/java/com/android/server/media/projection/MediaProjectionManagerService.java

+37 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ import android.app.AppOpsManager; 
import android.content.Context;

import android.content.pm.PackageManager;

import android.hardware.display.DisplayManager;

import android.media.MediaRouter;

import android.media.projection.IMediaProjectionManager;

import android.media.projection.IMediaProjection;

import android.media.projection.IMediaProjectionCallback;
@@ -68,6 +69,10 @@ public final class MediaProjectionManagerService extends SystemService 
    private final Context mContext;

    private final AppOpsManager mAppOps;



    private final MediaRouter mMediaRouter;

    private final MediaRouterCallback mMediaRouterCallback;

    private MediaRouter.RouteInfo mMediaRouteInfo;



    private IBinder mProjectionToken;

    private MediaProjection mProjectionGrant;
@@ -77,6 +82,8 @@ public final class MediaProjectionManagerService extends SystemService 
        mDeathEaters = new ArrayMap<IBinder, IBinder.DeathRecipient>();

        mCallbackDelegate = new CallbackDelegate();

        mAppOps = (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE);

        mMediaRouter = (MediaRouter) mContext.getSystemService(Context.MEDIA_ROUTER_SERVICE);

        mMediaRouterCallback = new MediaRouterCallback();

        Watchdog.getInstance().addMonitor(this);

    }
@@ -84,6 +91,12 @@ public final class MediaProjectionManagerService extends SystemService 
    public void onStart() {

        publishBinderService(Context.MEDIA_PROJECTION_SERVICE, new BinderService(),

                false /*allowIsolated*/);

        mMediaRouter.addCallback(MediaRouter.ROUTE_TYPE_REMOTE_DISPLAY, mMediaRouterCallback);

    }



    @Override

    public void onSwitchUser(int userId) {

        mMediaRouter.rebindAsUser(userId);

    }



    @Override
@@ -95,6 +108,9 @@ public final class MediaProjectionManagerService extends SystemService 
        if (mProjectionGrant != null) {

            mProjectionGrant.stop();

        }

        if (mMediaRouteInfo != null) {

            mMediaRouter.getDefaultRoute().select();

        }

        mProjectionToken = projection.asBinder();

        mProjectionGrant = projection;

        dispatchStart(projection);
@@ -448,6 +464,27 @@ public final class MediaProjectionManagerService extends SystemService 
        }

    }



    private class MediaRouterCallback extends MediaRouter.SimpleCallback {

        @Override

        public void onRouteSelected(MediaRouter router, int type, MediaRouter.RouteInfo info) {

            synchronized (mLock) {

                if ((type & MediaRouter.ROUTE_TYPE_REMOTE_DISPLAY) != 0) {

                    mMediaRouteInfo = info;

                    if (mProjectionGrant != null) {

                        mProjectionGrant.stop();

                    }

                }

            }

        }



        @Override

        public void onRouteUnselected(MediaRouter route, int type, MediaRouter.RouteInfo info) {

            if (mMediaRouteInfo == info) {

                mMediaRouteInfo = null;

            }

        }

    }





    private static class CallbackDelegate {

        private Map<IBinder, IMediaProjectionCallback> mClientCallbacks;