Merge branch 'charlesmchen/audioPlayer2'

Signal/Images.xcassets/audio_pause_white_large.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "audio_pause_white_large@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "audio_pause_white_large@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "audio_pause_white_large@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Signal/Images.xcassets/audio_play_white_large.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "audio_play_white_large@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "audio_play_white_large@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "audio_play_white_large@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Signal/src/Models/TSMessageAdapaters/TSVideoAttachmentAdapter.h

@@ -2,6 +2,7 @@
 //  Copyright (c) 2017 Open Whisper Systems. All rights reserved.
 //
 
+#import "OWSAudioAttachmentPlayer.h"
 #import "OWSMessageEditing.h"
 #import "OWSMessageMediaAdapter.h"
 #import <JSQMessagesViewController/JSQVideoMediaItem.h>
@@ -10,22 +11,16 @@ NS_ASSUME_NONNULL_BEGIN
 
 @class TSAttachmentStream;
 
-@interface TSVideoAttachmentAdapter : JSQVideoMediaItem <OWSMessageEditing, OWSMessageMediaAdapter>
+@interface TSVideoAttachmentAdapter
+    : JSQVideoMediaItem <OWSMessageEditing, OWSMessageMediaAdapter, OWSAudioAttachmentPlayerDelegate>
 
 @property NSString *attachmentId;
 @property (nonatomic, strong) NSString *contentType;
-@property (nonatomic) BOOL isAudioPlaying;
-@property (nonatomic) BOOL isPaused;
 
 - (instancetype)initWithAttachment:(TSAttachmentStream *)attachment incoming:(BOOL)incoming;
 
 - (BOOL)isAudio;
 - (BOOL)isVideo;
-- (void)setAudioProgressFromFloat:(float)progress;
-- (void)setAudioIconToPlay;
-- (void)setAudioIconToPause;
-- (void)setDurationOfAudio:(NSTimeInterval)duration;
-- (void)resetAudioDuration;
 
 @end
 

Signal/src/Models/TSMessageAdapaters/TSVideoAttachmentAdapter.m

@@ -28,6 +28,8 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, nullable) UILabel *durationLabel;
 @property (nonatomic) BOOL incoming;
 @property (nonatomic, nullable) AttachmentUploadView *attachmentUploadView;
+@property (nonatomic) BOOL isAudioPlaying;
+@property (nonatomic) BOOL isPaused;
 
 @end
 
@@ -96,16 +98,6 @@ NS_ASSUME_NONNULL_BEGIN
     });
 }
 
-- (void)resetAudioDuration {
-    NSError *err;
-    AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL:_attachment.mediaURL error:&err];
-    _durationLabel.text   = [self formatDuration:player.duration];
-}
-
-- (void)setDurationOfAudio:(NSTimeInterval)duration {
-    _durationLabel.text = [self formatDuration:duration];
-}
-
 - (void)setAudioIconToPlay {
     [_audioPlayPauseButton
         setBackgroundImage:[UIImage imageNamed:(_incoming ? @"audio_play_button_blue" : @"audio_play_button")]

Signal/src/Signal-Bridging-Header.h

@@ -10,6 +10,7 @@
 #import "FLAnimatedImage.h"
 #import "NotificationsManager.h"
 #import "OWSAnyTouchGestureRecognizer.h"
+#import "OWSAudioAttachmentPlayer.h"
 #import "OWSCallNotificationsAdaptee.h"
 #import "OWSContactAvatarBuilder.h"
 #import "OWSContactsManager.h"

Signal/src/ViewControllers/AttachmentApprovalViewController.swift

@@ -5,7 +5,7 @@
 import Foundation
 import MediaPlayer
 
-class AttachmentApprovalViewController: UIViewController {
+class AttachmentApprovalViewController: UIViewController, OWSAudioAttachmentPlayerDelegate {
 
     let TAG = "[AttachmentApprovalViewController]"
 
@@ -17,6 +17,11 @@ class AttachmentApprovalViewController: UIViewController {
 
     var videoPlayer: MPMoviePlayerController?
 
+    var audioPlayer: OWSAudioAttachmentPlayer?
+    var audioPlayButton: UIButton?
+    var isAudioPlayingFlag = false
+    var isAudioPaused = false
+
     // MARK: Initializers
 
     @available(*, unavailable, message:"use attachment: constructor instead.")
@@ -89,9 +94,63 @@ class AttachmentApprovalViewController: UIViewController {
         }
     }
 
+    private func wrapViewsInVerticalStack(subviews: [UIView]) -> UIView {
+        assert(subviews.count > 0)
+
+        let stackView = UIView()
+
+        var lastView: UIView?
+        for subview in subviews {
+
+            stackView.addSubview(subview)
+            subview.autoHCenterInSuperview()
+
+            if lastView == nil {
+                subview.autoPinEdge(toSuperviewEdge:.top)
+            } else {
+                subview.autoPinEdge(.top, to:.bottom, of:lastView!, withOffset:10)
+            }
+
+            lastView = subview
+        }
+
+        lastView?.autoPinEdge(toSuperviewEdge:.bottom)
+
+        return stackView
+    }
+
     private func createAudioPreview(attachmentPreviewView: UIView) {
-        // TODO: Add audio player.
-        createGenericPreview(attachmentPreviewView:attachmentPreviewView)
+        guard let dataUrl = attachment.getTemporaryDataUrl() else {
+            createGenericPreview(attachmentPreviewView:attachmentPreviewView)
+            return
+        }
+
+        audioPlayer = OWSAudioAttachmentPlayer(mediaUrl: dataUrl, delegate: self)
+
+        var subviews = [UIView]()
+
+        let audioPlayButton = UIButton()
+        self.audioPlayButton = audioPlayButton
+        setAudioIconToPlay()
+        audioPlayButton.imageView?.layer.minificationFilter = kCAFilterTrilinear
+        audioPlayButton.imageView?.layer.magnificationFilter = kCAFilterTrilinear
+        audioPlayButton.addTarget(self, action:#selector(audioPlayButtonPressed), for:.touchUpInside)
+        let buttonSize = createHeroViewSize()
+        audioPlayButton.autoSetDimension(.width, toSize:buttonSize)
+        audioPlayButton.autoSetDimension(.height, toSize:buttonSize)
+        subviews.append(audioPlayButton)
+
+        if let fileExtensionLabel = createFileExtensionLabel() {
+            subviews.append(fileExtensionLabel)
+        }
+
+        let fileSizeLabel = createFileSizeLabel()
+        subviews.append(fileSizeLabel)
+
+        let stackView = wrapViewsInVerticalStack(subviews:subviews)
+        attachmentPreviewView.addSubview(stackView)
+        stackView.autoPinWidthToSuperview()
+        stackView.autoVCenterInSuperview()
     }
 
     private func createAnimatedPreview(attachmentPreviewView: UIView) {
@@ -148,42 +207,63 @@ class AttachmentApprovalViewController: UIViewController {
     }
 
     private func createGenericPreview(attachmentPreviewView: UIView) {
-        let stackView = UIView()
-        attachmentPreviewView.addSubview(stackView)
-        stackView.autoCenterInSuperview()
+        var subviews = [UIView]()
 
-        let imageSize = ScaleFromIPhone5To7Plus(175, 225)
-        let image = UIImage(named:"file-icon-large")
+        let imageView = createHeroImageView(imageName: "file-icon-large")
+        subviews.append(imageView)
+
+        if let fileExtensionLabel = createFileExtensionLabel() {
+            subviews.append(fileExtensionLabel)
+        }
+
+        let fileSizeLabel = createFileSizeLabel()
+        subviews.append(fileSizeLabel)
+
+        let stackView = wrapViewsInVerticalStack(subviews:subviews)
+        attachmentPreviewView.addSubview(stackView)
+        stackView.autoPinWidthToSuperview()
+        stackView.autoVCenterInSuperview()
+    }
+
+    private func createHeroViewSize() -> CGFloat {
+        return ScaleFromIPhone5To7Plus(175, 225)
+    }
+
+    private func createHeroImageView(imageName: String) -> UIView {
+        let imageSize = createHeroViewSize()
+        let image = UIImage(named:imageName)
         assert(image != nil)
         let imageView = UIImageView(image:image)
         imageView.layer.minificationFilter = kCAFilterTrilinear
         imageView.layer.magnificationFilter = kCAFilterTrilinear
-        stackView.addSubview(imageView)
-        imageView.autoHCenterInSuperview()
-        imageView.autoPinEdge(toSuperviewEdge:.top)
         imageView.autoSetDimension(.width, toSize:imageSize)
         imageView.autoSetDimension(.height, toSize:imageSize)
 
-        var lastView: UIView = imageView
+        return imageView
+    }
 
-        let labelFont = UIFont.ows_regularFont(withSize:ScaleFromIPhone5To7Plus(18, 24))
+    private func labelFont() -> UIFont {
+        return UIFont.ows_regularFont(withSize:ScaleFromIPhone5To7Plus(18, 24))
+    }
 
-        if let fileExtension = attachment.fileExtension {
-            let fileExtensionLabel = UILabel()
-            fileExtensionLabel.text = String(format:NSLocalizedString("ATTACHMENT_APPROVAL_FILE_EXTENSION_FORMAT",
-                                                                 comment: "Format string for file extension label in call interstitial view"),
-                                             fileExtension.capitalized)
-
-            fileExtensionLabel.textColor = UIColor.white
-            fileExtensionLabel.font = labelFont
-            fileExtensionLabel.textAlignment = .center
-            stackView.addSubview(fileExtensionLabel)
-            fileExtensionLabel.autoHCenterInSuperview()
-            fileExtensionLabel.autoPinEdge(.top, to:.bottom, of:lastView, withOffset:10)
-
-            lastView = fileExtensionLabel
+    private func createFileExtensionLabel() -> UIView? {
+        guard let fileExtension = attachment.fileExtension else {
+            return nil
         }
 
+        let fileExtensionLabel = UILabel()
+        fileExtensionLabel.text = String(format:NSLocalizedString("ATTACHMENT_APPROVAL_FILE_EXTENSION_FORMAT",
+                                                                  comment: "Format string for file extension label in call interstitial view"),
+                                         fileExtension.capitalized)
+
+        fileExtensionLabel.textColor = UIColor.white
+        fileExtensionLabel.font = labelFont()
+        fileExtensionLabel.textAlignment = .center
+
+        return fileExtensionLabel
+    }
+
+    private func createFileSizeLabel() -> UIView {
         let numberFormatter = NumberFormatter()
         numberFormatter.numberStyle = NumberFormatter.Style.decimal
         let fileSizeLabel = UILabel()
@@ -200,12 +280,10 @@ class AttachmentApprovalViewController: UIViewController {
                                     fileSizeText)
 
         fileSizeLabel.textColor = UIColor.white
-        fileSizeLabel.font = labelFont
+        fileSizeLabel.font = labelFont()
         fileSizeLabel.textAlignment = .center
-        stackView.addSubview(fileSizeLabel)
-        fileSizeLabel.autoHCenterInSuperview()
-        fileSizeLabel.autoPinEdge(.top, to:.bottom, of:lastView, withOffset:10)
-        fileSizeLabel.autoPinEdge(toSuperviewEdge:.bottom)
+
+        return fileSizeLabel
     }
 
     private func createButtonRow(attachmentPreviewView: UIView) {
@@ -282,4 +360,42 @@ class AttachmentApprovalViewController: UIViewController {
             successCompletion?()
         })
     }
+
+    func audioPlayButtonPressed(sender: UIButton) {
+        audioPlayer?.togglePlayState()
+    }
+
+    // MARK: - OWSAudioAttachmentPlayerDelegate
+
+    public func isAudioPlaying() -> Bool {
+        return isAudioPlayingFlag
+    }
+
+    public func setIsAudioPlaying(_ isAudioPlaying: Bool) {
+        isAudioPlayingFlag = isAudioPlaying
+    }
+
+    public func isPaused() -> Bool {
+        return isAudioPaused
+    }
+
+    public func setIsPaused(_ isPaused: Bool) {
+        isAudioPaused = isPaused
+    }
+
+    public func setAudioProgressFrom(_ progress: Float) {
+        // Ignore
+    }
+
+    public func setAudioIconToPlay() {
+        let image = UIImage(named:"audio_play_white_large")
+        assert(image != nil)
+        audioPlayButton?.setImage(image, for:.normal)
+    }
+
+    public func setAudioIconToPause() {
+        let image = UIImage(named:"audio_pause_white_large")
+        assert(image != nil)
+        audioPlayButton?.setImage(image, for:.normal)
+    }
 }

Signal/src/ViewControllers/MessagesViewController.m

@@ -1789,7 +1789,8 @@ typedef enum : NSUInteger {
                             }
                         } else if ([messageMedia isAudio]) {
                             if (self.audioAttachmentPlayer) {
-                                if (self.audioAttachmentPlayer.mediaAdapter == messageMedia) {
+                                // Is this player associated with this media adapter?
+                                if (self.audioAttachmentPlayer.owner == messageMedia) {
                                     // Tap to pause & unpause.
                                     [self.audioAttachmentPlayer togglePlayState];
                                     return;
@@ -1800,6 +1801,8 @@ typedef enum : NSUInteger {
                             self.audioAttachmentPlayer =
                                 [[OWSAudioAttachmentPlayer alloc] initWithMediaAdapter:messageMedia
                                                                     databaseConnection:self.uiDatabaseConnection];
+                            // Associate the player with this media adapter.
+                            self.audioAttachmentPlayer.owner = messageMedia;
                             [self.audioAttachmentPlayer play];
                         }
                     }

Signal/src/ViewControllers/OWSAudioAttachmentPlayer.h

@@ -9,13 +9,39 @@ NS_ASSUME_NONNULL_BEGIN
 @class TSVideoAttachmentAdapter;
 @class YapDatabaseConnection;
 
+@protocol OWSAudioAttachmentPlayerDelegate <NSObject>
+
+- (BOOL)isAudioPlaying;
+- (void)setIsAudioPlaying:(BOOL)isAudioPlaying;
+
+- (BOOL)isPaused;
+- (void)setIsPaused:(BOOL)isPaused;
+
+- (void)setAudioProgressFromFloat:(float)progress;
+- (void)setAudioIconToPlay;
+- (void)setAudioIconToPause;
+
+@end
+
+#pragma mark -
+
 @interface OWSAudioAttachmentPlayer : NSObject <AVAudioPlayerDelegate>
 
-@property (nonatomic, readonly) TSVideoAttachmentAdapter *mediaAdapter;
+@property (nonatomic, readonly, weak) id<OWSAudioAttachmentPlayerDelegate> delegate;
 
+// This property can be used to associate instances of the player with view
+// or model objects.
+@property (nonatomic, weak) id owner;
+
+// A convenience initializer for MessagesViewController.
+//
+// It assumes the delegate (e.g. view) for this player will be the adapter.
 - (instancetype)initWithMediaAdapter:(TSVideoAttachmentAdapter *)mediaAdapter
                   databaseConnection:(YapDatabaseConnection *)databaseConnection;
 
+// An generic initializer.
+- (instancetype)initWithMediaUrl:(NSURL *)mediaUrl delegate:(id<OWSAudioAttachmentPlayerDelegate>)delegate;
+
 - (void)play;
 - (void)pause;
 - (void)stop;

Signal/src/ViewControllers/OWSAudioAttachmentPlayer.m

@@ -13,7 +13,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 @interface OWSAudioAttachmentPlayer ()
 
-@property (nonatomic) TSAttachmentStream *attachmentStream;
+@property (nonatomic, readonly) NSURL *mediaUrl;
 
 @property (nonatomic, nullable) AVAudioPlayer *audioPlayer;
 @property (nonatomic, nullable) NSTimer *audioPlayerPoller;
@@ -24,31 +24,49 @@ NS_ASSUME_NONNULL_BEGIN
 
 @implementation OWSAudioAttachmentPlayer
 
-- (instancetype)initWithMediaAdapter:(TSVideoAttachmentAdapter *)mediaAdapter
-                  databaseConnection:(YapDatabaseConnection *)databaseConnection
++ (NSURL *)mediaUrlForMediaAdapter:(TSVideoAttachmentAdapter *)mediaAdapter
+                databaseConnection:(YapDatabaseConnection *)databaseConnection
 {
-    self = [super init];
-    if (!self) {
-        return self;
-    }
-
     OWSAssert(mediaAdapter);
     OWSAssert([mediaAdapter isAudio]);
     OWSAssert(mediaAdapter.attachmentId);
     OWSAssert(databaseConnection);
 
-    _mediaAdapter = mediaAdapter;
-
     __block TSAttachment *attachment = nil;
     [databaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
         attachment = [TSAttachment fetchObjectWithUniqueID:mediaAdapter.attachmentId transaction:transaction];
     }];
     OWSAssert(attachment);
 
+    TSAttachmentStream *attachmentStream = nil;
     if ([attachment isKindOfClass:[TSAttachmentStream class]]) {
-        self.attachmentStream = (TSAttachmentStream *)attachment;
+        attachmentStream = (TSAttachmentStream *)attachment;
     }
-    OWSAssert(self.attachmentStream);
+    OWSAssert(attachmentStream);
+
+    return attachmentStream.mediaURL;
+}
+
+- (instancetype)initWithMediaAdapter:(TSVideoAttachmentAdapter *)mediaAdapter
+                  databaseConnection:(YapDatabaseConnection *)databaseConnection
+{
+    return [self initWithMediaUrl:[OWSAudioAttachmentPlayer mediaUrlForMediaAdapter:mediaAdapter
+                                                                 databaseConnection:databaseConnection]
+                         delegate:mediaAdapter];
+}
+
+- (instancetype)initWithMediaUrl:(NSURL *)mediaUrl delegate:(id<OWSAudioAttachmentPlayerDelegate>)delegate
+{
+    self = [super init];
+    if (!self) {
+        return self;
+    }
+
+    OWSAssert(mediaUrl);
+    OWSAssert(delegate);
+
+    _delegate = delegate;
+    _mediaUrl = mediaUrl;
 
     [[NSNotificationCenter defaultCenter] addObserver:self
                                              selector:@selector(applicationDidEnterBackground:)
@@ -74,20 +92,21 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (void)play
 {
-    OWSAssert(self.attachmentStream);
-    OWSAssert(![self.mediaAdapter isAudioPlaying]);
+    OWSAssert([NSThread isMainThread]);
+    OWSAssert(self.mediaUrl);
+    OWSAssert(![self.delegate isAudioPlaying]);
 
     [ViewControllerUtils setAudioIgnoresHardwareMuteSwitch:YES];
 
     [self.audioPlayerPoller invalidate];
 
-    self.mediaAdapter.isAudioPlaying = YES;
-    self.mediaAdapter.isPaused = NO;
-    [self.mediaAdapter setAudioIconToPause];
+    self.delegate.isAudioPlaying = YES;
+    self.delegate.isPaused = NO;
+    [self.delegate setAudioIconToPause];
 
     if (!self.audioPlayer) {
         NSError *error;
-        self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:self.attachmentStream.mediaURL error:&error];
+        self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:self.mediaUrl error:&error];
         if (error) {
             DDLogError(@"%@ error: %@", self.tag, error);
             [self stop];
@@ -107,35 +126,34 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (void)pause
 {
-    OWSAssert(self.attachmentStream);
+    OWSAssert([NSThread isMainThread]);
 
-    self.mediaAdapter.isAudioPlaying = NO;
-    self.mediaAdapter.isPaused = YES;
+    self.delegate.isAudioPlaying = NO;
+    self.delegate.isPaused = YES;
     [self.audioPlayer pause];
     [self.audioPlayerPoller invalidate];
     double current = [self.audioPlayer currentTime] / [self.audioPlayer duration];
-    [self.mediaAdapter setAudioProgressFromFloat:(float)current];
-    [self.mediaAdapter setAudioIconToPlay];
+    [self.delegate setAudioProgressFromFloat:(float)current];
+    [self.delegate setAudioIconToPlay];
 }
 
 - (void)stop
 {
-    OWSAssert(self.attachmentStream);
+    OWSAssert([NSThread isMainThread]);
 
     [self.audioPlayer pause];
     [self.audioPlayerPoller invalidate];
-    [self.mediaAdapter setAudioProgressFromFloat:0];
-    [self.mediaAdapter setDurationOfAudio:self.audioPlayer.duration];
-    [self.mediaAdapter setAudioIconToPlay];
-    self.mediaAdapter.isAudioPlaying = NO;
-    self.mediaAdapter.isPaused = NO;
+    [self.delegate setAudioProgressFromFloat:0];
+    [self.delegate setAudioIconToPlay];
+    self.delegate.isAudioPlaying = NO;
+    self.delegate.isPaused = NO;
 }
 
 - (void)togglePlayState
 {
-    OWSAssert(self.attachmentStream);
+    OWSAssert([NSThread isMainThread]);
 
-    if (self.mediaAdapter.isAudioPlaying) {
+    if (self.delegate.isAudioPlaying) {
         [self pause];
     } else {
         [self play];
@@ -146,17 +164,19 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (void)audioPlayerUpdated:(NSTimer *)timer
 {
+    OWSAssert([NSThread isMainThread]);
+
     OWSAssert(self.audioPlayer);
     OWSAssert(self.audioPlayerPoller);
 
     double current = [self.audioPlayer currentTime] / [self.audioPlayer duration];
-    double interval = [self.audioPlayer duration] - [self.audioPlayer currentTime];
-    [self.mediaAdapter setDurationOfAudio:interval];
-    [self.mediaAdapter setAudioProgressFromFloat:(float)current];
+    [self.delegate setAudioProgressFromFloat:(float)current];
 }
 
 - (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
 {
+    OWSAssert([NSThread isMainThread]);
+
     [self stop];
 }