public void requestResume() {
if (mRemoteDisplay != null) {
mRemoteDisplay.resume();
}
}
/**
* This function is called repeatedly after each asynchronous operation until all preconditions
* for the connection have been satisfied and the connection is established (or not).
*/
private void updateConnection() {
// Step 0. Stop scans if necessary to prevent interference while connected.
// Resume scans later when no longer attempting to connect.
updateScanState();
// Step 1. Before we try to connect to a new device, tell the system we
// have disconnected from the old one.
if ((mRemoteDisplay != null || mExtRemoteDisplay != null)
&& mConnectedDevice != mDesiredDevice) {
Slog.i(
TAG,
"Stopped listening for RTSP connection on "
+ mRemoteDisplayInterface
+ " from Wifi display: "
+ mConnectedDevice.deviceName);
if (mRemoteDisplay != null) {
mRemoteDisplay.dispose();
} else if (mExtRemoteDisplay != null) {
ExtendedRemoteDisplayHelper.dispose(mExtRemoteDisplay);
}
mExtRemoteDisplay = null;
mRemoteDisplay = null;
mRemoteDisplayInterface = null;
mRemoteDisplayConnected = false;
mHandler.removeCallbacks(mRtspTimeout);
mWifiP2pManager.setMiracastMode(WifiP2pManager.MIRACAST_DISABLED);
unadvertiseDisplay();
// continue to next step
}
// Step 2. Before we try to connect to a new device, disconnect from the old one.
if (mDisconnectingDevice != null) {
return; // wait for asynchronous callback
}
if (mConnectedDevice != null && mConnectedDevice != mDesiredDevice) {
Slog.i(TAG, "Disconnecting from Wifi display: " + mConnectedDevice.deviceName);
mDisconnectingDevice = mConnectedDevice;
mConnectedDevice = null;
mConnectedDeviceGroupInfo = null;
unadvertiseDisplay();
final WifiP2pDevice oldDevice = mDisconnectingDevice;
mWifiP2pManager.removeGroup(
mWifiP2pChannel,
new ActionListener() {
@Override
public void onSuccess() {
Slog.i(TAG, "Disconnected from Wifi display: " + oldDevice.deviceName);
next();
}
@Override
public void onFailure(int reason) {
Slog.i(
TAG,
"Failed to disconnect from Wifi display: "
+ oldDevice.deviceName
+ ", reason="
+ reason);
next();
}
private void next() {
if (mDisconnectingDevice == oldDevice) {
mDisconnectingDevice = null;
updateConnection();
}
}
});
return; // wait for asynchronous callback
}
// Step 3. Before we try to connect to a new device, stop trying to connect
// to the old one.
if (mCancelingDevice != null) {
return; // wait for asynchronous callback
}
if (mConnectingDevice != null && mConnectingDevice != mDesiredDevice) {
Slog.i(TAG, "Canceling connection to Wifi display: " + mConnectingDevice.deviceName);
mCancelingDevice = mConnectingDevice;
mConnectingDevice = null;
unadvertiseDisplay();
mHandler.removeCallbacks(mConnectionTimeout);
final WifiP2pDevice oldDevice = mCancelingDevice;
mWifiP2pManager.cancelConnect(
mWifiP2pChannel,
new ActionListener() {
@Override
public void onSuccess() {
Slog.i(TAG, "Canceled connection to Wifi display: " + oldDevice.deviceName);
next();
}
@Override
public void onFailure(int reason) {
Slog.i(
TAG,
"Failed to cancel connection to Wifi display: "
+ oldDevice.deviceName
+ ", reason="
+ reason);
next();
}
private void next() {
if (mCancelingDevice == oldDevice) {
mCancelingDevice = null;
updateConnection();
}
}
});
return; // wait for asynchronous callback
}
// Step 4. If we wanted to disconnect, or we're updating after starting an
// autonomous GO, then mission accomplished.
if (mDesiredDevice == null) {
if (mWifiDisplayCertMode) {
mListener.onDisplaySessionInfo(getSessionInfo(mConnectedDeviceGroupInfo, 0));
}
unadvertiseDisplay();
return; // done
}
// Step 5. Try to connect.
if (mConnectedDevice == null && mConnectingDevice == null) {
Slog.i(TAG, "Connecting to Wifi display: " + mDesiredDevice.deviceName);
mConnectingDevice = mDesiredDevice;
WifiP2pConfig config = new WifiP2pConfig();
WpsInfo wps = new WpsInfo();
if (mWifiDisplayWpsConfig != WpsInfo.INVALID) {
wps.setup = mWifiDisplayWpsConfig;
} else if (mConnectingDevice.wpsPbcSupported()) {
wps.setup = WpsInfo.PBC;
} else if (mConnectingDevice.wpsDisplaySupported()) {
// We do keypad if peer does display
wps.setup = WpsInfo.KEYPAD;
} else {
wps.setup = WpsInfo.DISPLAY;
}
config.wps = wps;
config.deviceAddress = mConnectingDevice.deviceAddress;
// Helps with STA & P2P concurrency
config.groupOwnerIntent = WifiP2pConfig.MIN_GROUP_OWNER_INTENT;
WifiDisplay display = createWifiDisplay(mConnectingDevice);
advertiseDisplay(display, null, 0, 0, 0);
final WifiP2pDevice newDevice = mDesiredDevice;
mWifiP2pManager.connect(
mWifiP2pChannel,
config,
new ActionListener() {
@Override
public void onSuccess() {
// The connection may not yet be established. We still need to wait
// for WIFI_P2P_CONNECTION_CHANGED_ACTION. However, we might never
// get that broadcast, so we register a timeout.
Slog.i(TAG, "Initiated connection to Wifi display: " + newDevice.deviceName);
mHandler.postDelayed(mConnectionTimeout, CONNECTION_TIMEOUT_SECONDS * 1000);
}
@Override
public void onFailure(int reason) {
if (mConnectingDevice == newDevice) {
Slog.i(
TAG,
"Failed to initiate connection to Wifi display: "
+ newDevice.deviceName
+ ", reason="
+ reason);
mConnectingDevice = null;
handleConnectionFailure(false);
}
}
});
return; // wait for asynchronous callback
}
// Step 6. Listen for incoming RTSP connection.
if (mConnectedDevice != null && mRemoteDisplay == null && mExtRemoteDisplay == null) {
Inet4Address addr = getInterfaceAddress(mConnectedDeviceGroupInfo);
if (addr == null) {
Slog.i(
TAG,
"Failed to get local interface address for communicating "
+ "with Wifi display: "
+ mConnectedDevice.deviceName);
handleConnectionFailure(false);
return; // done
}
mWifiP2pManager.setMiracastMode(WifiP2pManager.MIRACAST_SOURCE);
final WifiP2pDevice oldDevice = mConnectedDevice;
final int port = getPortNumber(mConnectedDevice);
final String iface = addr.getHostAddress() + ":" + port;
mRemoteDisplayInterface = iface;
Slog.i(
TAG,
"Listening for RTSP connection on "
+ iface
+ " from Wifi display: "
+ mConnectedDevice.deviceName);
RemoteDisplay.Listener listener =
new RemoteDisplay.Listener() {
@Override
public void onDisplayConnected(
Surface surface, int width, int height, int flags, int session) {
if (mConnectedDevice == oldDevice && !mRemoteDisplayConnected) {
Slog.i(
TAG,
"Opened RTSP connection with Wifi display: " + mConnectedDevice.deviceName);
mRemoteDisplayConnected = true;
mHandler.removeCallbacks(mRtspTimeout);
if (mWifiDisplayCertMode) {
mListener.onDisplaySessionInfo(
getSessionInfo(mConnectedDeviceGroupInfo, session));
}
final WifiDisplay display = createWifiDisplay(mConnectedDevice);
advertiseDisplay(display, surface, width, height, flags);
}
}
@Override
public void onDisplayDisconnected() {
if (mConnectedDevice == oldDevice) {
Slog.i(
TAG,
"Closed RTSP connection with Wifi display: " + mConnectedDevice.deviceName);
mHandler.removeCallbacks(mRtspTimeout);
disconnect();
}
}
@Override
public void onDisplayError(int error) {
if (mConnectedDevice == oldDevice) {
Slog.i(
TAG,
"Lost RTSP connection with Wifi display due to error "
+ error
+ ": "
+ mConnectedDevice.deviceName);
mHandler.removeCallbacks(mRtspTimeout);
handleConnectionFailure(false);
}
}
};
if (ExtendedRemoteDisplayHelper.isAvailable()) {
mExtRemoteDisplay = ExtendedRemoteDisplayHelper.listen(iface, listener, mHandler, mContext);
} else {
mRemoteDisplay =
RemoteDisplay.listen(iface, listener, mHandler, mContext.getOpPackageName());
}
// Use extended timeout value for certification, as some tests require user inputs
int rtspTimeout =
mWifiDisplayCertMode ? RTSP_TIMEOUT_SECONDS_CERT_MODE : RTSP_TIMEOUT_SECONDS;
mHandler.postDelayed(mRtspTimeout, rtspTimeout * 1000);
}
}
public void requestPause() {
if (mRemoteDisplay != null) {
mRemoteDisplay.pause();
}
}