talk-ios/VideoCalls/CallViewController.m

504 строки
16 KiB
Objective-C

//
// CallViewController.m
// VideoCalls
//
// Created by Ivan Sein on 31.07.17.
// Copyright © 2017 struktur AG. All rights reserved.
//
#import "CallViewController.h"
#import <WebRTC/RTCCameraVideoCapturer.h>
#import <WebRTC/RTCMediaStream.h>
#import <WebRTC/RTCEAGLVideoView.h>
#import <WebRTC/RTCVideoTrack.h>
#import "ARDCaptureController.h"
#import "CallParticipantViewCell.h"
#import "NBMPeersFlowLayout.h"
#import "NCCallController.h"
#import "NCAPIController.h"
#import "NCSettingsController.h"
#import "UIImageView+AFNetworking.h"
typedef NS_ENUM(NSInteger, CallState) {
CallStateJoining,
CallStateWaitingParticipants,
CallStateInCall
};
@interface CallViewController () <NCCallControllerDelegate, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout, UICollectionViewDataSource, RTCEAGLVideoViewDelegate>
{
CallState _callState;
NSMutableArray *_peersInCall;
NSMutableDictionary *_renderersDict;
NCCallController *_callController;
ARDCaptureController *_captureController;
NSTimer *_detailedViewTimer;
BOOL _isAudioOnly;
BOOL _userDisabledVideo;
}
@property (nonatomic, strong) IBOutlet UIView *buttonsContainerView;
@property (nonatomic, strong) IBOutlet UIButton *audioMuteButton;
@property (nonatomic, strong) IBOutlet UIButton *videoDisableButton;
@property (nonatomic, strong) IBOutlet UIButton *switchCameraButton;
@property (nonatomic, strong) IBOutlet UIButton *hangUpButton;
@property (nonatomic, strong) IBOutlet UICollectionView *collectionView;
@property (nonatomic, strong) IBOutlet UICollectionViewFlowLayout *flowLayout;
@end
@implementation CallViewController
@synthesize delegate = _delegate;
- (instancetype)initCallInRoom:(NCRoom *)room asUser:(NSString*)displayName audioOnly:(BOOL)audioOnly
{
self = [super init];
if (!self) {
return nil;
}
_callController = [[NCCallController alloc] initWithDelegate:self forAudioOnlyCall:audioOnly];
_callController.room = room;
_callController.userDisplayName = displayName;
_room = room;
_isAudioOnly = audioOnly;
_peersInCall = [[NSMutableArray alloc] init];
_renderersDict = [[NSMutableDictionary alloc] init];
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
[self setCallState:CallStateJoining];
[_callController startCall];
[[UIDevice currentDevice] setProximityMonitoringEnabled:YES];
[UIApplication sharedApplication].idleTimerDisabled = YES;
UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showDetailedView)];
[tapGestureRecognizer setNumberOfTapsRequired:1];
[self.view addGestureRecognizer:tapGestureRecognizer];
[self.audioMuteButton.layer setCornerRadius:24.0f];
[self.videoDisableButton.layer setCornerRadius:24.0f];
[self.switchCameraButton.layer setCornerRadius:24.0f];
[self.hangUpButton.layer setCornerRadius:24.0f];
[self setDetailedViewTimer];
self.collectionView.delegate = self;
self.waitingImageView.layer.cornerRadius = 64;
self.waitingImageView.layer.masksToBounds = YES;
[self setWaitingScreen];
if ([[[NCSettingsController sharedInstance] videoSettingsModel] videoDisabledSettingFromStore] || _isAudioOnly) {
_userDisabledVideo = YES;
[self disableLocalVideo];
}
[self.collectionView registerNib:[UINib nibWithNibName:kCallParticipantCellNibName bundle:nil] forCellWithReuseIdentifier:kCallParticipantCellIdentifier];
if (@available(iOS 11.0, *)) {
[self.collectionView setContentInsetAdjustmentBehavior:UIScrollViewContentInsetAdjustmentNever];
}
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(sensorStateChange:)
name:@"UIDeviceProximityStateDidChangeNotification" object:nil];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
[[UIDevice currentDevice] setProximityMonitoringEnabled:NO];
[UIApplication sharedApplication].idleTimerDisabled = NO;
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Proximity sensor
- (void)sensorStateChange:(NSNotificationCenter *)notification
{
if ([[UIDevice currentDevice] proximityState] == YES) {
[self disableLocalVideo];
[_callController setAudioSessionToVoiceChatMode];
} else {
// Only enable video if it was not disabled by the user.
if (!_userDisabledVideo) {
[self enableLocalVideo];
}
[_callController setAudioSessionToVideoChatMode];
}
}
#pragma mark - User Interface
- (void)setCallState:(CallState)state
{
switch (state) {
case CallStateJoining:
break;
case CallStateWaitingParticipants:
break;
case CallStateInCall:
break;
default:
break;
}
}
- (void)setWaitingScreen
{
if (_room.type == kNCRoomTypeOneToOneCall) {
self.waitingLabel.text = [NSString stringWithFormat:@"Waiting for %@ to join call…", _room.displayName];
[self.waitingImageView setImageWithURLRequest:[[NCAPIController sharedInstance] createAvatarRequestForUser:_room.name andSize:256]
placeholderImage:nil success:nil failure:nil];
} else {
self.waitingLabel.text = @"Waiting for others to join call…";
if (_room.type == kNCRoomTypeGroupCall) {
[self.waitingImageView setImage:[UIImage imageNamed:@"group-white85"]];
} else {
[self.waitingImageView setImage:[UIImage imageNamed:@"public-white85"]];
}
self.waitingImageView.backgroundColor = [UIColor colorWithRed:0.84 green:0.84 blue:0.84 alpha:1.0]; /*#d5d5d5*/
self.waitingImageView.contentMode = UIViewContentModeCenter;
}
[self setWaitingScreenVisibility];
}
- (void)setWaitingScreenVisibility
{
self.collectionView.backgroundView = self.waitingView;
if (_peersInCall.count > 0) {
self.collectionView.backgroundView = nil;
}
}
- (void)showDetailedView
{
[self showButtonsContainer];
[self showPeersInfo];
[self setDetailedViewTimer];
}
- (void)hideDetailedView
{
[self hideButtonsContainer];
[self hidePeersInfo];
[self invalidateDetailedViewTimer];
}
- (void)showButtonsContainer
{
[UIView animateWithDuration:0.3f animations:^{
[self.buttonsContainerView setAlpha:1.0f];
[self.view layoutIfNeeded];
}];
}
- (void)hideButtonsContainer {
[UIView animateWithDuration:0.3f animations:^{
[self.buttonsContainerView setAlpha:0.0f];
[self.view layoutIfNeeded];
}];
}
- (void)setDetailedViewTimer
{
[self invalidateDetailedViewTimer];
_detailedViewTimer = [NSTimer scheduledTimerWithTimeInterval:3.0 target:self selector:@selector(hideDetailedView) userInfo:nil repeats:NO];
}
- (void)invalidateDetailedViewTimer
{
[_detailedViewTimer invalidate];
_detailedViewTimer = nil;
}
#pragma mark - Call actions
- (IBAction)audioButtonPressed:(id)sender
{
UIButton *audioButton = sender;
if ([_callController isAudioEnabled]) {
[_callController enableAudio:NO];
[audioButton setImage:[UIImage imageNamed:@"audio-off"] forState:UIControlStateNormal];
} else {
[_callController enableAudio:YES];
[audioButton setImage:[UIImage imageNamed:@"audio"] forState:UIControlStateNormal];
}
}
- (IBAction)videoButtonPressed:(id)sender
{
if ([_callController isVideoEnabled]) {
[self disableLocalVideo];
_userDisabledVideo = YES;
} else {
[self enableLocalVideo];
_userDisabledVideo = NO;
}
}
- (void)disableLocalVideo
{
[_callController enableVideo:NO];
[_captureController stopCapture];
[_switchCameraButton setEnabled:NO];
[_videoDisableButton setImage:[UIImage imageNamed:@"video-off"] forState:UIControlStateNormal];
}
- (void)enableLocalVideo
{
[_callController enableVideo:YES];
[_captureController startCapture];
[_switchCameraButton setEnabled:YES];
[_videoDisableButton setImage:[UIImage imageNamed:@"video"] forState:UIControlStateNormal];
}
- (IBAction)switchCameraButtonPressed:(id)sender
{
[self switchCamera];
}
- (void)switchCamera
{
[_captureController switchCamera];
[self flipLocalVideoView];
}
- (void)flipLocalVideoView
{
CATransition *animation = [CATransition animation];
animation.duration = .5f;
animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
animation.type = @"oglFlip";
animation.subtype = kCATransitionFromRight;
[self.localVideoView.layer addAnimation:animation forKey:nil];
}
- (IBAction)hangupButtonPressed:(id)sender
{
[self hangup];
}
- (void)hangup
{
self.waitingLabel.text = @"Call ended";
[_localVideoView.captureSession stopRunning];
_localVideoView.captureSession = nil;
[_captureController stopCapture];
_captureController = nil;
for (NCPeerConnection *peerConnection in _peersInCall) {
RTCEAGLVideoView *renderer = [_renderersDict objectForKey:peerConnection.peerId];
[[peerConnection.remoteStream.videoTracks firstObject] removeRenderer:renderer];
[_renderersDict removeObjectForKey:peerConnection.peerId];
}
[_callController leaveCall];
}
- (void)finishCall
{
_callController = nil;
[self.delegate callViewControllerDidFinish:self];
}
#pragma mark - UICollectionView Datasource
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
[self setWaitingScreenVisibility];
return [_peersInCall count];
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
CallParticipantViewCell *cell = (CallParticipantViewCell *)[collectionView dequeueReusableCellWithReuseIdentifier:kCallParticipantCellIdentifier forIndexPath:indexPath];
NCPeerConnection *peerConnection = [_peersInCall objectAtIndex:indexPath.row];
[cell setVideoView:[_renderersDict objectForKey:peerConnection.peerId]];
[cell setUserAvatar:[_callController getUserIdFromSessionId:peerConnection.peerId]];
[cell setDisplayName:peerConnection.peerName];
[cell setAudioDisabled:peerConnection.isRemoteAudioDisabled];
[cell setVideoDisabled: (_isAudioOnly) ? YES : peerConnection.isRemoteVideoDisabled];
return cell;
}
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
CGRect frame = [NBMPeersFlowLayout frameForWithNumberOfItems:_peersInCall.count
row:indexPath.row
contentSize:self.collectionView.frame.size];
return frame.size;
}
- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{
[self.collectionView reloadData];
}
#pragma mark - Call Controller delegate
- (void)callControllerDidJoinCall:(NCCallController *)callController
{
[self setCallState:CallStateWaitingParticipants];
}
- (void)callControllerDidEndCall:(NCCallController *)callController
{
[self finishCall];
}
- (void)callController:(NCCallController *)callController peerJoined:(NCPeerConnection *)peer
{
// Start adding cell for that peer and wait until add
}
- (void)callController:(NCCallController *)callController peerLeft:(NCPeerConnection *)peer
{
RTCEAGLVideoView *renderer = [_renderersDict objectForKey:peer.peerId];
[[peer.remoteStream.videoTracks firstObject] removeRenderer:renderer];
[_renderersDict removeObjectForKey:peer.peerId];
[_peersInCall removeObject:peer];
[self.collectionView reloadData];
}
- (void)callController:(NCCallController *)callController didCreateLocalVideoCapturer:(RTCCameraVideoCapturer *)videoCapturer
{
_localVideoView.captureSession = videoCapturer.captureSession;
_captureController = [[ARDCaptureController alloc] initWithCapturer:videoCapturer settings:[[NCSettingsController sharedInstance] videoSettingsModel]];
[_captureController startCapture];
}
- (void)callController:(NCCallController *)callController didAddLocalStream:(RTCMediaStream *)localStream
{
}
- (void)callController:(NCCallController *)callController didRemoveLocalStream:(RTCMediaStream *)localStream
{
}
- (void)callController:(NCCallController *)callController didAddStream:(RTCMediaStream *)remoteStream ofPeer:(NCPeerConnection *)remotePeer
{
RTCEAGLVideoView *renderView = [[RTCEAGLVideoView alloc] initWithFrame:CGRectZero];
renderView.delegate = self;
RTCVideoTrack *remoteVideoTrack = [remotePeer.remoteStream.videoTracks firstObject];
[remoteVideoTrack addRenderer:renderView];
[_renderersDict setObject:renderView forKey:remotePeer.peerId];
[_peersInCall addObject:remotePeer];
[self.collectionView reloadData];
[self showDetailedView];
}
- (void)callController:(NCCallController *)callController didRemoveStream:(RTCMediaStream *)remoteStream ofPeer:(NCPeerConnection *)remotePeer
{
}
- (void)callController:(NCCallController *)callController iceStatusChanged:(RTCIceConnectionState)state ofPeer:(NCPeerConnection *)peer
{
if (state == RTCIceConnectionStateClosed) {
[_peersInCall removeObject:peer];
[self.collectionView reloadData];
}
}
- (void)callController:(NCCallController *)callController didAddDataChannel:(RTCDataChannel *)dataChannel
{
}
- (void)callController:(NCCallController *)callController didReceiveDataChannelMessage:(NSString *)message fromPeer:(NCPeerConnection *)peer
{
if ([message isEqualToString:@"audioOn"] || [message isEqualToString:@"audioOff"]) {
[self updatePeer:peer block:^(CallParticipantViewCell *cell) {
[cell setAudioDisabled:peer.isRemoteAudioDisabled];
}];
} else if ([message isEqualToString:@"videoOn"] || [message isEqualToString:@"videoOff"]) {
if (!_isAudioOnly) {
[self updatePeer:peer block:^(CallParticipantViewCell *cell) {
[cell setVideoDisabled:peer.isRemoteVideoDisabled];
}];
}
}
}
- (void)callController:(NCCallController *)callController didReceiveNick:(NSString *)nick fromPeer:(NCPeerConnection *)peer
{
[self updatePeer:peer block:^(CallParticipantViewCell *cell) {
[cell setDisplayName:nick];
}];
}
#pragma mark - RTCEAGLVideoViewDelegate
- (void)videoView:(RTCEAGLVideoView*)videoView didChangeVideoSize:(CGSize)size
{
for (RTCEAGLVideoView *rendererView in [_renderersDict allValues]) {
if ([videoView isEqual:rendererView]) {
rendererView.frame = CGRectMake(0, 0, size.width, size.height);
}
}
[self.collectionView reloadData];
}
#pragma mark - Cell updates
- (NSIndexPath *)indexPathOfPeer:(NCPeerConnection *)peer {
NSUInteger idx = [_peersInCall indexOfObject:peer];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:idx inSection:0];
return indexPath;
}
- (void)updatePeer:(NCPeerConnection *)peer block:(void(^)(CallParticipantViewCell* cell))block {
NSIndexPath *indexPath = [self indexPathOfPeer:peer];
dispatch_async(dispatch_get_main_queue(), ^{
CallParticipantViewCell *cell = (id)[self.collectionView cellForItemAtIndexPath:indexPath];
block(cell);
});
}
- (void)showPeersInfo
{
NSArray *visibleCells = [_collectionView visibleCells];
for (CallParticipantViewCell *cell in visibleCells) {
[UIView animateWithDuration:0.3f animations:^{
[cell.peerNameLabel setAlpha:1.0f];
[cell.audioOffIndicator setAlpha:0.5f];
[cell layoutIfNeeded];
}];
}
}
- (void)hidePeersInfo
{
NSArray *visibleCells = [_collectionView visibleCells];
for (CallParticipantViewCell *cell in visibleCells) {
[UIView animateWithDuration:0.3f animations:^{
[cell.peerNameLabel setAlpha:0.0f];
[cell.audioOffIndicator setAlpha:0.0f];
[cell layoutIfNeeded];
}];
}
}
@end