Temp

NotificationService/NotificationService.m

@@ -63,9 +63,20 @@ static int64_t makePeerId(int32_t namespace, int32_t value) {
     return self;
 }
 
+- (void)completeWithContent:(UNNotificationContent * _Nonnull)content {
+    /*NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:@"org.telegram.Telegram-iOS.background"];
+    NSURLSession *session = [NSURLSession sessionWithConfiguration:configuration];
+    NSURLSessionDownloadTask *task = [session downloadTaskWithURL:[NSURL URLWithString:@"https://telegram.org"]];
+    [task resume];*/
+    
+    if (_contentHandler) {
+        _contentHandler(content);
+    }
+}
+
 - (void)didReceiveNotificationRequest:(UNNotificationRequest *)request withContentHandler:(void (^)(UNNotificationContent * _Nonnull))contentHandler {
     if (_rootPath == nil) {
-        contentHandler(request.content);
+        [self completeWithContent:request.content];
         return;
     }
     
@@ -289,8 +300,8 @@ static int64_t makePeerId(int32_t namespace, int32_t value) {
                         _bestAttemptContent.attachments = @[attachment];
                     }
                 }
-                if (_contentHandler && _bestAttemptContent != nil) {
-                    _contentHandler(_bestAttemptContent);
+                if (_bestAttemptContent != nil) {
+                    [self completeWithContent:_bestAttemptContent];
                 }
             } else {
                 BuildConfig *buildConfig = [[BuildConfig alloc] initWithBaseAppBundleId:_baseAppBundleId];
@@ -322,21 +333,21 @@ static int64_t makePeerId(int32_t namespace, int32_t value) {
                                 }
                             }
                             
-                            if (strongSelf->_contentHandler && strongSelf->_bestAttemptContent != nil) {
-                                strongSelf->_contentHandler(strongSelf->_bestAttemptContent);
+                            if (strongSelf->_bestAttemptContent != nil) {
+                                [strongSelf completeWithContent:strongSelf->_bestAttemptContent];
                             }
                         }
                     });
                 });
             }
         } else {
-            if (_contentHandler && _bestAttemptContent != nil) {
-                _contentHandler(_bestAttemptContent);
+            if (_bestAttemptContent != nil) {
+                [self completeWithContent:_bestAttemptContent];
             }
         }
     } else {
-        if (_contentHandler && _bestAttemptContent != nil) {
-            _contentHandler(_bestAttemptContent);
+        if (_bestAttemptContent != nil) {
+            [self completeWithContent:_bestAttemptContent];
         }
     }
 }
@@ -349,7 +360,7 @@ static int64_t makePeerId(int32_t namespace, int32_t value) {
     
     if (_contentHandler) {
         if(_bestAttemptContent) {
-            _contentHandler(_bestAttemptContent);
+            [self completeWithContent:_bestAttemptContent];
             _bestAttemptContent = nil;
         }
         _contentHandler = nil;

submodules/ChatListUI/Sources/ChatListController.swift

@@ -15,6 +15,7 @@ import TelegramNotices
 import SearchUI
 import DeleteChatPeerActionSheetItem
 import LanguageSuggestionUI
+import ContextUI
 
 public func useSpecialTabBarIcons() -> Bool {
     return (Date(timeIntervalSince1970: 1545642000)...Date(timeIntervalSince1970: 1546387200)).contains(Date())
@@ -64,6 +65,27 @@ private func fixListNodeScrolling(_ listNode: ListView, searchNode: NavigationBa
     return false
 }
 
+private final class ContextControllerContentSourceImpl: ContextControllerContentSource {
+    let controller: ViewController
+    weak var sourceNode: ASDisplayNode?
+    
+    init(controller: ViewController, sourceNode: ASDisplayNode?) {
+        self.controller = controller
+        self.sourceNode = sourceNode
+    }
+    
+    func transitionInfo() -> ContextControllerTakeControllerInfo? {
+        let sourceNode = self.sourceNode
+        return ContextControllerTakeControllerInfo(contentAreaInScreenSpace: CGRect(origin: CGPoint(), size: CGSize(width: 10.0, height: 10.0)), sourceNode: { [weak sourceNode] in
+            if let sourceNode = sourceNode {
+                return (sourceNode, sourceNode.bounds)
+            } else {
+                return nil
+            }
+        })
+    }
+}
+
 public class ChatListControllerImpl: TelegramBaseController, ChatListController, UIViewControllerPreviewingDelegate {
     private var validLayout: ContainerViewLayout?
     
@@ -356,6 +378,19 @@ public class ChatListControllerImpl: TelegramBaseController, ChatListController,
                 preconditionFailure("debug tap")
             }
         }
+        
+        self.customPresentPreviewingController = { [weak self] controller, sourceNode in
+            guard let strongSelf = self else {
+                return nil
+            }
+            var items: [ContextMenuItem] = []
+            for i in 0 ..< 5 {
+                items.append(.action(ContextMenuActionItem(text: "Item \(i)", icon: { _ in nil }, action: { controller, f in
+                    f(.default)
+                })))
+            }
+            return ContextController(account: strongSelf.context.account, theme: strongSelf.presentationData.theme, strings: strongSelf.presentationData.strings, source: .controller(ContextControllerContentSourceImpl(controller: controller, sourceNode: sourceNode)), items: items, reactionItems: [])
+        }
     }
 
     required public init(coder aDecoder: NSCoder) {
@@ -1068,6 +1103,13 @@ public class ChatListControllerImpl: TelegramBaseController, ChatListController,
                 return true
             })
         }
+        
+        if #available(iOSApplicationExtension 9.0, iOS 9.0, *) {
+            if !self.didSetup3dTouch {
+                self.didSetup3dTouch = true
+                self.registerForPreviewingNonNative(with: self, sourceView: self.view, theme: PeekControllerTheme(presentationTheme: self.presentationData.theme))
+            }
+        }
     }
     
     override public func viewWillDisappear(_ animated: Bool) {

submodules/ContextUI/Sources/ContextContentContainerNode.swift

@@ -9,7 +9,7 @@ final class ContextContentContainerNode: ASDisplayNode {
         super.init()
     }
     
-    func updateLayout(size: CGSize, transition: ContainedViewLayoutTransition) {
+    func updateLayout(size: CGSize, scaledSize: CGSize, transition: ContainedViewLayoutTransition) {
         guard let contentNode = self.contentNode else {
             return
         }
@@ -17,6 +17,9 @@ final class ContextContentContainerNode: ASDisplayNode {
         case .extracted:
             break
         case let .controller(controller):
+            transition.updatePosition(node: controller, position: CGPoint(x: scaledSize.width / 2.0, y: scaledSize.height / 2.0))
+            transition.updateBounds(node: controller, bounds: CGRect(origin: CGPoint(), size: size))
+            transition.updateTransformScale(node: controller, scale: scaledSize.width / size.width)
             controller.updateLayout(size: size, transition: transition)
         }
     }

submodules/ContextUI/Sources/ContextContentSourceNode.swift

@@ -38,7 +38,8 @@ final class ContextControllerContentNode: ASDisplayNode {
     }
     
     func updateLayout(size: CGSize, transition: ContainedViewLayoutTransition) {
-        controller.containerLayoutUpdated(ContainerViewLayout(size: size, metrics: LayoutMetrics(widthClass: .compact, heightClass: .compact), deviceMetrics: .iPhoneX, intrinsicInsets: UIEdgeInsets(), safeInsets: UIEdgeInsets(), statusBarHeight: nil, inputHeight: nil, inputHeightIsInteractivellyChanging: false, inVoiceOver: false), transition: transition)
+        transition.updateFrame(node: self.controller.displayNode, frame: CGRect(origin: CGPoint(), size: size))
+        self.controller.containerLayoutUpdated(ContainerViewLayout(size: size, metrics: LayoutMetrics(widthClass: .compact, heightClass: .compact), deviceMetrics: .iPhoneX, intrinsicInsets: UIEdgeInsets(), safeInsets: UIEdgeInsets(), statusBarHeight: nil, inputHeight: nil, inputHeightIsInteractivellyChanging: false, inVoiceOver: false), transition: transition)
     }
 }
 

submodules/ContextUI/Sources/ContextController.swift

@@ -339,7 +339,25 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
                 self.clippingNode.layer.animateBoundsOriginYAdditive(from: updatedContentAreaInScreenSpace.minY, to: 0.0, duration: 0.18 * animationDurationFactor, timingFunction: CAMediaTimingFunctionName.easeInEaseOut.rawValue)
             }
         case let .controller(source):
-            break
+            let contentParentNode = ContextControllerContentNode(controller: source.controller)
+            self.contentContainerNode.contentNode = .controller(contentParentNode)
+            self.contentContainerNode.clipsToBounds = true
+            self.contentContainerNode.cornerRadius = 14.0
+            self.contentContainerNode.addSubnode(contentParentNode)
+            
+            let transitionInfo = source.transitionInfo()
+            if let transitionInfo = transitionInfo, let (sourceNode, sourceNodeRect) = transitionInfo.sourceNode() {
+                let projectedFrame = convertFrame(sourceNodeRect, from: sourceNode.view, to: self.view)
+                self.originalProjectedContentViewFrame = (projectedFrame, projectedFrame)
+                
+                var updatedContentAreaInScreenSpace = transitionInfo.contentAreaInScreenSpace
+                updatedContentAreaInScreenSpace.origin.x = 0.0
+                updatedContentAreaInScreenSpace.size.width = self.bounds.width
+                self.contentAreaInScreenSpace = updatedContentAreaInScreenSpace
+                
+                //self.clippingNode.layer.animateFrame(from: updatedContentAreaInScreenSpace, to: self.clippingNode.frame, duration: 0.18 * animationDurationFactor, timingFunction: CAMediaTimingFunctionName.easeInEaseOut.rawValue)
+                //self.clippingNode.layer.animateBoundsOriginYAdditive(from: updatedContentAreaInScreenSpace.minY, to: 0.0, duration: 0.18 * animationDurationFactor, timingFunction: CAMediaTimingFunctionName.easeInEaseOut.rawValue)
+            }
         }
         
         if let validLayout = self.validLayout {
@@ -375,14 +393,15 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
                 self?.didCompleteAnimationIn = true
             })
         }
-        self.actionsContainerNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.2 * animationDurationFactor)
         
         let springDuration: Double = 0.42 * animationDurationFactor
         let springDamping: CGFloat = 104.0
-        self.actionsContainerNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: springDuration, initialVelocity: 0.0, damping: springDamping)
         if let contentNode = self.contentContainerNode.contentNode {
             switch contentNode {
             case let .extracted(extracted):
+                self.actionsContainerNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.2 * animationDurationFactor)
+                self.actionsContainerNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: springDuration, initialVelocity: 0.0, damping: springDamping)
+                
                 if let originalProjectedContentViewFrame = self.originalProjectedContentViewFrame {
                     let contentParentNode = extracted
                     let localSourceFrame = self.view.convert(originalProjectedContentViewFrame.1, to: self.scrollNode.view)
@@ -396,8 +415,23 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
                     self.contentContainerNode.layer.animateSpring(from: NSValue(cgPoint: contentContainerOffset), to: NSValue(cgPoint: CGPoint()), keyPath: "position", duration: springDuration, initialVelocity: 0.0, damping: springDamping, additive: true)
                     contentParentNode.applyAbsoluteOffsetSpring?(-contentContainerOffset.y, springDuration, springDamping)
                 }
-            case let .controller(controller):
-                break
+            case .controller:
+                self.actionsContainerNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.2 * animationDurationFactor)
+                self.actionsContainerNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: springDuration, initialVelocity: 0.0, damping: springDamping)
+                self.contentContainerNode.allowsGroupOpacity = true
+                self.contentContainerNode.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.2 * animationDurationFactor, completion: { [weak self] _ in
+                    self?.contentContainerNode.allowsGroupOpacity = false
+                })
+                self.contentContainerNode.layer.animateSpring(from: 0.1 as NSNumber, to: 1.0 as NSNumber, keyPath: "transform.scale", duration: springDuration, initialVelocity: 0.0, damping: springDamping)
+                
+                if let originalProjectedContentViewFrame = self.originalProjectedContentViewFrame {
+                    let actionsSideInset: CGFloat = 11.0
+                    
+                    let localSourceFrame = self.view.convert(CGRect(origin: CGPoint(x: actionsSideInset, y: originalProjectedContentViewFrame.1.minY), size: CGSize(width: actionsSideInset, height: originalProjectedContentViewFrame.1.height)), to: self.scrollNode.view)
+                    self.actionsContainerNode.layer.animateSpring(from: NSValue(cgPoint: CGPoint(x: localSourceFrame.center.x - self.actionsContainerNode.position.x, y: localSourceFrame.center.y - self.actionsContainerNode.position.y)), to: NSValue(cgPoint: CGPoint()), keyPath: "position", duration: springDuration, initialVelocity: 0.0, damping: springDamping, additive: true)
+                    let contentContainerOffset = CGPoint(x: localSourceFrame.center.x - self.contentContainerNode.frame.center.x, y: localSourceFrame.center.y - self.contentContainerNode.frame.center.y)
+                    self.contentContainerNode.layer.animateSpring(from: NSValue(cgPoint: contentContainerOffset), to: NSValue(cgPoint: CGPoint()), keyPath: "position", duration: springDuration, initialVelocity: 0.0, damping: springDamping, additive: true)
+                }
             }
         }
     }
@@ -410,6 +444,10 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
         
         switch self.source {
         case let .extracted(source):
+            guard let maybeContentNode = self.contentContainerNode.contentNode, case let .extracted(contentParentNode) = maybeContentNode else {
+                return
+            }
+            
             let putBackInfo = source.putBack()
             
             if putBackInfo == nil {
@@ -438,7 +476,7 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
             var completedContentNode = false
             var completedActionsNode = false
             
-            if let putBackInfo = putBackInfo, let contentParentNode = self.contentParentNode, let parentSupernode = contentParentNode.supernode {
+            if let putBackInfo = putBackInfo, let parentSupernode = contentParentNode.supernode {
                 self.originalProjectedContentViewFrame = (convertFrame(contentParentNode.frame, from: parentSupernode.view, to: self.view), convertFrame(contentParentNode.contentRect, from: contentParentNode.view, to: self.view))
                 
                 var updatedContentAreaInScreenSpace = putBackInfo.contentAreaInScreenSpace
@@ -449,9 +487,7 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
                 self.clippingNode.layer.animateBoundsOriginYAdditive(from: 0.0, to: updatedContentAreaInScreenSpace.minY, duration: transitionDuration * animationDurationFactor, timingFunction: transitionCurve.timingFunction, removeOnCompletion: false)
             }
             
-            let contentParentNode = self.contentParentNode
-            
-            contentParentNode?.willUpdateIsExtractedToContextPreview?(false)
+            contentParentNode.willUpdateIsExtractedToContextPreview?(false)
             
             let intermediateCompletion: () -> Void = { [weak contentParentNode] in
                 if completedEffect && completedContentNode && completedActionsNode {
@@ -518,7 +554,7 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
                 animateOutToItem = false
             }
             
-            if animateOutToItem, let originalProjectedContentViewFrame = self.originalProjectedContentViewFrame, let contentParentNode = self.contentParentNode {
+            if animateOutToItem, let originalProjectedContentViewFrame = self.originalProjectedContentViewFrame {
                 let localSourceFrame = self.view.convert(originalProjectedContentViewFrame.1, to: self.scrollNode.view)
                 self.actionsContainerNode.layer.animatePosition(from: CGPoint(), to: CGPoint(x: localSourceFrame.center.x - self.actionsContainerNode.position.x, y: localSourceFrame.center.y - self.actionsContainerNode.position.y), duration: transitionDuration * animationDurationFactor, timingFunction: transitionCurve.timingFunction, removeOnCompletion: false, additive: true)
                 let contentContainerOffset = CGPoint(x: localSourceFrame.center.x - self.contentContainerNode.frame.center.x - contentParentNode.contentRect.minX, y: localSourceFrame.center.y - self.contentContainerNode.frame.center.y - contentParentNode.contentRect.minY)
@@ -532,7 +568,7 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
                 if let reactionContextNode = self.reactionContextNode {
                     reactionContextNode.animateOut(to: CGRect(origin: CGPoint(x: originalProjectedContentViewFrame.1.minX, y: originalProjectedContentViewFrame.1.minY), size: contentParentNode.contentRect.size), animatingOutToReaction: self.reactionContextNodeIsAnimatingOut)
                 }
-            } else if let contentParentNode = self.contentParentNode {
+            } else {
                 if let snapshotView = contentParentNode.contentNode.view.snapshotContentTree() {
                     self.contentContainerNode.view.addSubview(snapshotView)
                 }
@@ -553,8 +589,138 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
                 }
             }
         case let .controller(source):
+            guard let maybeContentNode = self.contentContainerNode.contentNode, case let .controller(controller) = maybeContentNode else {
+                return
+            }
+            
+            let transitionInfo = source.transitionInfo()
+            
+            if transitionInfo == nil {
+                result = .dismissWithoutContent
+            }
+            
+            switch result {
+            case let .custom(value):
+                switch value {
+                case let .animated(duration, curve):
+                    transitionDuration = duration
+                    transitionCurve = curve
+                default:
                     break
                 }
+            default:
+                break
+            }
+            
+            self.isUserInteractionEnabled = false
+            self.isAnimatingOut = true
+            
+            self.scrollNode.view.setContentOffset(self.scrollNode.view.contentOffset, animated: false)
+            
+            var completedEffect = false
+            var completedContentNode = false
+            var completedActionsNode = false
+            
+            if let transitionInfo = transitionInfo, let (sourceNode, sourceNodeRect) = transitionInfo.sourceNode() {
+                let projectedFrame = convertFrame(sourceNodeRect, from: sourceNode.view, to: self.view)
+                self.originalProjectedContentViewFrame = (projectedFrame, projectedFrame)
+                
+                var updatedContentAreaInScreenSpace = transitionInfo.contentAreaInScreenSpace
+                updatedContentAreaInScreenSpace.origin.x = 0.0
+                updatedContentAreaInScreenSpace.size.width = self.bounds.width
+            }
+            
+            let intermediateCompletion: () -> Void = {
+                if completedEffect && completedContentNode && completedActionsNode {
+                    switch result {
+                    case .default, .custom:
+                        break
+                    case .dismissWithoutContent:
+                        break
+                    }
+                    
+                    completion()
+                }
+            }
+            
+            if #available(iOS 10.0, *) {
+                if let propertyAnimator = self.propertyAnimator {
+                    let propertyAnimator = propertyAnimator as? UIViewPropertyAnimator
+                    propertyAnimator?.stopAnimation(true)
+                }
+                self.propertyAnimator = UIViewPropertyAnimator(duration: transitionDuration, curve: .easeInOut, animations: { [weak self] in
+                    self?.effectView.effect = nil
+                })
+            }
+            
+            if let _ = self.propertyAnimator {
+                if #available(iOSApplicationExtension 10.0, iOS 10.0, *) {
+                    self.displayLinkAnimator = DisplayLinkAnimator(duration: 0.2 * animationDurationFactor, from: 0.0, to: 0.999, update: { [weak self] value in
+                        (self?.propertyAnimator as? UIViewPropertyAnimator)?.fractionComplete = value
+                        }, completion: {
+                            completedEffect = true
+                            intermediateCompletion()
+                    })
+                }
+                self.effectView.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.05 * animationDurationFactor, delay: 0.15, timingFunction: CAMediaTimingFunctionName.easeInEaseOut.rawValue, removeOnCompletion: false)
+            } else {
+                UIView.animate(withDuration: 0.21 * animationDurationFactor, animations: {
+                    if #available(iOS 9.0, *) {
+                        self.effectView.effect = nil
+                    } else {
+                        self.effectView.alpha = 0.0
+                    }
+                }, completion: { _ in
+                    completedEffect = true
+                    intermediateCompletion()
+                })
+            }
+            
+            self.dimNode.layer.animateAlpha(from: 1.0, to: 0.0, duration: transitionDuration * animationDurationFactor, removeOnCompletion: false)
+            self.actionsContainerNode.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.2 * animationDurationFactor, removeOnCompletion: false, completion: { _ in
+                completedActionsNode = true
+                intermediateCompletion()
+            })
+            self.contentContainerNode.layer.animateAlpha(from: 1.0, to: 0.0, duration: 0.2 * animationDurationFactor, removeOnCompletion: false, completion: { _ in
+            })
+            self.actionsContainerNode.layer.animateScale(from: 1.0, to: 0.1, duration: transitionDuration * animationDurationFactor, timingFunction: transitionCurve.timingFunction, removeOnCompletion: false)
+            self.contentContainerNode.layer.animateScale(from: 1.0, to: 0.01, duration: transitionDuration * animationDurationFactor, timingFunction: transitionCurve.timingFunction, removeOnCompletion: false)
+            
+            let animateOutToItem: Bool
+            switch result {
+            case .default, .custom:
+                animateOutToItem = true
+            case .dismissWithoutContent:
+                animateOutToItem = false
+            }
+            
+            if animateOutToItem, let originalProjectedContentViewFrame = self.originalProjectedContentViewFrame {
+                let actionsSideInset: CGFloat = 11.0
+                
+                let localSourceFrame = self.view.convert(CGRect(origin: CGPoint(x: actionsSideInset, y: originalProjectedContentViewFrame.1.minY), size: CGSize(width: actionsSideInset, height: originalProjectedContentViewFrame.1.height)), to: self.scrollNode.view)
+                
+                self.actionsContainerNode.layer.animatePosition(from: CGPoint(), to: CGPoint(x: localSourceFrame.center.x - self.actionsContainerNode.position.x, y: localSourceFrame.center.y - self.actionsContainerNode.position.y), duration: transitionDuration * animationDurationFactor, timingFunction: transitionCurve.timingFunction, removeOnCompletion: false, additive: true)
+                let contentContainerOffset = CGPoint(x: localSourceFrame.center.x - self.contentContainerNode.frame.center.x, y: localSourceFrame.center.y - self.contentContainerNode.frame.center.y)
+                self.contentContainerNode.layer.animatePosition(from: CGPoint(), to: contentContainerOffset, duration: transitionDuration * animationDurationFactor, timingFunction: transitionCurve.timingFunction, removeOnCompletion: false, additive: true, completion: { _ in
+                    completedContentNode = true
+                    intermediateCompletion()
+                })
+            } else {
+                if let snapshotView = controller.view.snapshotContentTree() {
+                    self.contentContainerNode.view.addSubview(snapshotView)
+                }
+                
+                self.contentContainerNode.allowsGroupOpacity = true
+                self.contentContainerNode.layer.animateAlpha(from: 1.0, to: 0.0, duration: transitionDuration * animationDurationFactor, removeOnCompletion: false, completion: { _ in
+                    completedContentNode = true
+                    intermediateCompletion()
+                })
+                
+                if let reactionContextNode = self.reactionContextNode {
+                    reactionContextNode.animateOut(to: nil, animatingOutToReaction: self.reactionContextNodeIsAnimatingOut)
+                }
+            }
+        }
     }
     
     func animateOutToReaction(value: String, into targetNode: ASImageNode, hideNode: Bool, completion: @escaping () -> Void) {
@@ -646,13 +812,16 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
         }
         let actionsBottomInset: CGFloat = 11.0
         
-        if let originalProjectedContentViewFrame = self.originalProjectedContentViewFrame, let contentParentNode = self.contentParentNode {
+        if let contentNode = self.contentContainerNode.contentNode {
+            switch contentNode {
+            case let .extracted(contentParentNode):
+                if let originalProjectedContentViewFrame = self.originalProjectedContentViewFrame {
                     let isInitialLayout = self.actionsContainerNode.frame.size.width.isZero
                     let previousContainerFrame = self.view.convert(self.contentContainerNode.frame, from: self.scrollNode.view)
                     
                     let actionsSize = self.actionsContainerNode.updateLayout(constrainedWidth: layout.size.width - actionsSideInset * 2.0, transition: actionsContainerTransition)
                     let contentSize = originalProjectedContentViewFrame.1.size
-            self.contentContainerNode.updateLayout(size: contentSize, transition: transition)
+                    self.contentContainerNode.updateLayout(size: contentSize, scaledSize: contentSize, transition: transition)
                     
                     let maximumActionsFrameOrigin = max(60.0, layout.size.height - layout.intrinsicInsets.bottom - actionsBottomInset - actionsSize.height)
                     var originalActionsFrame = CGRect(origin: CGPoint(x: max(actionsSideInset, min(layout.size.width - actionsSize.width - actionsSideInset, originalProjectedContentViewFrame.1.minX)), y: min(originalProjectedContentViewFrame.1.maxY + contentActionsSpacing, maximumActionsFrameOrigin)), size: actionsSize)
@@ -697,6 +866,63 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
                         reactionContextNode.updateLayout(size: layout.size, insets: insets, anchorRect: CGRect(origin: CGPoint(x: absoluteContentRect.minX + contentParentNode.contentRect.minX, y: absoluteContentRect.minY + contentParentNode.contentRect.minY), size: contentParentNode.contentRect.size), transition: transition)
                     }
                 }
+            case let .controller(contentParentNode):
+                let topEdge = max(contentTopInset, self.contentAreaInScreenSpace?.minY ?? 0.0)
+                
+                contentParentNode.updateLayout(size: layout.size, transition: transition)
+                
+                let isInitialLayout = self.actionsContainerNode.frame.size.width.isZero
+                let previousContainerFrame = self.view.convert(self.contentContainerNode.frame, from: self.scrollNode.view)
+                
+                let actionsSize = self.actionsContainerNode.updateLayout(constrainedWidth: layout.size.width - actionsSideInset * 2.0, transition: actionsContainerTransition)
+                let contentScale = (layout.size.width - actionsSideInset * 2.0) / layout.size.width
+                let proposedContentHeight = layout.size.height - topEdge - contentActionsSpacing - actionsSize.height - layout.intrinsicInsets.bottom - actionsBottomInset
+                let contentUnscaledSize = CGSize(width: layout.size.width, height: max(400.0, proposedContentHeight))
+                let contentSize = CGSize(width: floor(contentUnscaledSize.width * contentScale), height: floor(contentUnscaledSize.height * contentScale))
+                
+                self.contentContainerNode.updateLayout(size: contentUnscaledSize, scaledSize: contentSize, transition: transition)
+                
+                let maximumActionsFrameOrigin = max(60.0, layout.size.height - layout.intrinsicInsets.bottom - actionsBottomInset - actionsSize.height)
+                var originalActionsFrame = CGRect(origin: CGPoint(x: actionsSideInset, y: maximumActionsFrameOrigin), size: actionsSize)
+                var originalContentFrame = CGRect(origin: CGPoint(x: actionsSideInset, y: originalActionsFrame.minY - contentActionsSpacing - contentSize.height), size: contentSize)
+                if originalContentFrame.minY < topEdge {
+                    let requiredOffset = topEdge - originalContentFrame.minY
+                    let availableOffset = max(0.0, layout.size.height - layout.intrinsicInsets.bottom - actionsBottomInset - originalActionsFrame.maxY)
+                    let offset = min(requiredOffset, availableOffset)
+                    originalActionsFrame = originalActionsFrame.offsetBy(dx: 0.0, dy: offset)
+                    originalContentFrame = originalContentFrame.offsetBy(dx: 0.0, dy: offset)
+                }
+                
+                let contentHeight = max(layout.size.height, max(layout.size.height, originalActionsFrame.maxY + actionsBottomInset) - originalContentFrame.minY + contentTopInset)
+                
+                let scrollContentSize = CGSize(width: layout.size.width, height: contentHeight)
+                if self.scrollNode.view.contentSize != scrollContentSize {
+                    self.scrollNode.view.contentSize = scrollContentSize
+                }
+                
+                let overflowOffset = min(0.0, originalContentFrame.minY - contentTopInset)
+                
+                let contentContainerFrame = originalContentFrame
+                transition.updateFrame(node: self.contentContainerNode, frame: contentContainerFrame.offsetBy(dx: 0.0, dy: -overflowOffset))
+                actionsContainerTransition.updateFrame(node: self.actionsContainerNode, frame: originalActionsFrame.offsetBy(dx: 0.0, dy: -overflowOffset))
+                
+                if isInitialLayout {
+                    self.scrollNode.view.contentOffset = CGPoint(x: 0.0, y: -overflowOffset)
+                    let currentContainerFrame = self.view.convert(self.contentContainerNode.frame, from: self.scrollNode.view)
+                    if overflowOffset < 0.0 {
+                        transition.animateOffsetAdditive(node: self.scrollNode, offset: currentContainerFrame.minY - previousContainerFrame.minY)
+                    }
+                }
+                
+                let absoluteContentRect = contentContainerFrame.offsetBy(dx: 0.0, dy: -self.scrollNode.view.contentOffset.y)
+                
+                if let reactionContextNode = self.reactionContextNode {
+                    let insets = layout.insets(options: [.statusBar])
+                    transition.updateFrame(node: reactionContextNode, frame: CGRect(origin: CGPoint(), size: layout.size))
+                    reactionContextNode.updateLayout(size: layout.size, insets: insets, anchorRect: CGRect(origin: CGPoint(x: absoluteContentRect.minX, y: absoluteContentRect.minY), size: contentSize), transition: transition)
+                }
+            }
+        }
         
         if let previousActionsContainerNode = previousActionsContainerNode {
             if transition.isAnimated {
@@ -718,7 +944,10 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
     }
     
     func scrollViewDidScroll(_ scrollView: UIScrollView) {
-        if let contentParentNode = self.contentParentNode, let layout = self.validLayout {
+        guard let layout = self.validLayout else {
+            return
+        }
+        if let maybeContentNode = self.contentContainerNode.contentNode, case let .extracted(contentParentNode) = maybeContentNode {
             let contentContainerFrame = self.contentContainerNode.frame
             contentParentNode.updateAbsoluteRect?(contentContainerFrame.offsetBy(dx: 0.0, dy: -self.scrollNode.view.contentOffset.y), layout.size)
         }
@@ -734,7 +963,9 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
             }
         }
         let mappedPoint = self.view.convert(point, to: self.scrollNode.view)
-        if let contentParentNode = self.contentParentNode {
+        if let maybeContentNode = self.contentContainerNode.contentNode {
+            switch maybeContentNode {
+            case let .extracted(contentParentNode):
                 let contentPoint = self.view.convert(point, to: contentParentNode.contentNode.view)
                 if let result = contentParentNode.contentNode.hitTest(contentPoint, with: event) {
                     if result is TextSelectionNodeView {
@@ -743,6 +974,9 @@ private final class ContextControllerNode: ViewControllerTracingNode, UIScrollVi
                         return contentParentNode.contentNode.view
                     }
                 }
+            case let .controller(controller):
+                break
+            }
         }
         
         if self.actionsContainerNode.frame.contains(mappedPoint) {
@@ -765,9 +999,11 @@ public final class ContextControllerTakeViewInfo {
 
 public final class ContextControllerTakeControllerInfo {
     public let contentAreaInScreenSpace: CGRect
+    public let sourceNode: () -> (ASDisplayNode, CGRect)?
     
-    public init(contentAreaInScreenSpace: CGRect) {
+    public init(contentAreaInScreenSpace: CGRect, sourceNode: @escaping () -> (ASDisplayNode, CGRect)?) {
         self.contentAreaInScreenSpace = contentAreaInScreenSpace
+        self.sourceNode = sourceNode
     }
 }
 

submodules/Display/Display/PeekControllerGestureRecognizer.swift

@@ -18,7 +18,7 @@ private func traceDeceleratingScrollView(_ view: UIView, at point: CGPoint) -> B
 
 public final class PeekControllerGestureRecognizer: UIPanGestureRecognizer {
     private let contentAtPoint: (CGPoint) -> Signal<(ASDisplayNode, PeekControllerContent)?, NoError>?
-    private let present: (PeekControllerContent, ASDisplayNode) -> PeekController?
+    private let present: (PeekControllerContent, ASDisplayNode) -> ViewController?
     private let updateContent: (PeekControllerContent?) -> Void
     private let activateBySingleTap: Bool
     
@@ -36,7 +36,7 @@ public final class PeekControllerGestureRecognizer: UIPanGestureRecognizer {
     private var menuActivation: PeerkControllerMenuActivation?
     private weak var presentedController: PeekController?
     
-    public init(contentAtPoint: @escaping (CGPoint) -> Signal<(ASDisplayNode, PeekControllerContent)?, NoError>?, present: @escaping (PeekControllerContent, ASDisplayNode) -> PeekController?, updateContent: @escaping (PeekControllerContent?) -> Void = { _ in }, activateBySingleTap: Bool = false) {
+    public init(contentAtPoint: @escaping (CGPoint) -> Signal<(ASDisplayNode, PeekControllerContent)?, NoError>?, present: @escaping (PeekControllerContent, ASDisplayNode) -> ViewController?, updateContent: @escaping (PeekControllerContent?) -> Void = { _ in }, activateBySingleTap: Bool = false) {
         self.contentAtPoint = contentAtPoint
         self.present = present
         self.updateContent = updateContent
@@ -259,6 +259,7 @@ public final class PeekControllerGestureRecognizer: UIPanGestureRecognizer {
                                 }
                             } else {
                                 if let presentedController = strongSelf.present(content, sourceNode) {
+                                    if let presentedController = presentedController as? PeekController {
                                         if forceActivate {
                                             strongSelf.candidateContent = nil
                                             if case .press = content.menuActivation() {
@@ -284,6 +285,11 @@ public final class PeekControllerGestureRecognizer: UIPanGestureRecognizer {
                                                     }
                                             }
                                         }
+                                    } else {
+                                        if strongSelf.state != .ended {
+                                            strongSelf.state = .ended
+                                        }
+                                    }
                                 }
                             }
                         } else if strongSelf.presentedController == nil {

submodules/Display/Display/ViewController.swift

@@ -224,6 +224,8 @@ open class ViewControllerPresentationArguments {
     public var scrollToTopWithTabBar: (() -> Void)?
     public var longTapWithTabBar: (() -> Void)?
     
+    public var customPresentPreviewingController: ((ViewController, ASDisplayNode) -> ViewController?)?
+    
     open func updateNavigationCustomData(_ data: Any?, progress: CGFloat, transition: ContainedViewLayoutTransition) {
         
     }
@@ -491,12 +493,14 @@ open class ViewControllerPresentationArguments {
     
     @available(iOSApplicationExtension 9.0, iOS 9.0, *)
     open func registerForPreviewing(with delegate: UIViewControllerPreviewingDelegate, sourceView: UIView, theme: PeekControllerTheme, onlyNative: Bool) {
-        if self.traitCollection.forceTouchCapability == .available {
+        if false, self.traitCollection.forceTouchCapability == .available {
             let _ = super.registerForPreviewing(with: delegate, sourceView: sourceView)
         } else if !onlyNative {
             if self.previewingContext == nil {
                 let previewingContext = SimulatedViewControllerPreviewing(theme: theme, delegate: delegate, sourceView: sourceView, node: self.displayNode, present: { [weak self] c, a in
                     self?.presentInGlobalOverlay(c, with: a)
+                }, customPresent: { [weak self] c, n in
+                    return self?.customPresentPreviewingController?(c, n)
                 })
                 self.previewingContext = previewingContext
             }
@@ -505,10 +509,12 @@ open class ViewControllerPresentationArguments {
     
     @available(iOSApplicationExtension 9.0, iOS 9.0, *)
     public func registerForPreviewingNonNative(with delegate: UIViewControllerPreviewingDelegate, sourceView: UIView, theme: PeekControllerTheme) {
-        if self.traitCollection.forceTouchCapability != .available {
+        if true || self.traitCollection.forceTouchCapability != .available {
             if self.previewingContext == nil {
                 let previewingContext = SimulatedViewControllerPreviewing(theme: theme, delegate: delegate, sourceView: sourceView, node: self.displayNode, present: { [weak self] c, a in
                     self?.presentInGlobalOverlay(c, with: a)
+                }, customPresent: { [weak self] c, n in
+                    return self?.customPresentPreviewingController?(c, n)
                 })
                 self.previewingContext = previewingContext
             }

submodules/Display/Display/ViewControllerPreviewing.swift

@@ -5,7 +5,7 @@ import SwiftSignalKit
 
 @available(iOSApplicationExtension 9.0, iOS 9.0, *)
 private final class ViewControllerPeekContent: PeekControllerContent {
-    private let controller: ViewController
+    let controller: ViewController
     private let menu: [PeekControllerMenuItem]
     
     init(controller: ViewController) {
@@ -101,7 +101,7 @@ final class SimulatedViewControllerPreviewing: NSObject, UIViewControllerPreview
     
     var sourceRect: CGRect = CGRect()
     
-    init(theme: PeekControllerTheme, delegate: UIViewControllerPreviewingDelegate, sourceView: UIView, node: ASDisplayNode, present: @escaping (ViewController, Any?) -> Void) {
+    init(theme: PeekControllerTheme, delegate: UIViewControllerPreviewingDelegate, sourceView: UIView, node: ASDisplayNode, present: @escaping (ViewController, Any?) -> Void, customPresent: ((ViewController, ASDisplayNode) -> ViewController?)?) {
         self.delegateImpl = delegate
         self.sourceView = sourceView
         self.node = node
@@ -109,11 +109,16 @@ final class SimulatedViewControllerPreviewing: NSObject, UIViewControllerPreview
         self.recognizer = PeekControllerGestureRecognizer(contentAtPoint: { point in
             return contentAtPointImpl?(point)
         }, present: { content, sourceNode in
+            if let content = content as? ViewControllerPeekContent, let controller = customPresent?(content.controller, sourceNode) {
+                present(controller, nil)
+                return controller
+            } else {
                 let controller = PeekController(theme: theme, content: content, sourceNode: {
                     return sourceNode
                 })
                 present(controller, nil)
                 return controller
+            }
         })
         
         node.view.addGestureRecognizer(self.recognizer)

submodules/TelegramUI/TelegramUI/AppDelegate.swift

@@ -1277,6 +1277,14 @@ final class SharedApplicationContext {
         self.isInForegroundPromise.set(true)
         self.isActiveValue = true
         self.isActivePromise.set(true)
+        
+        let configuration = URLSessionConfiguration.background(withIdentifier: "org.telegram.Telegram-iOS.background")
+        let session = URLSession(configuration: configuration)
+        if #available(iOS 9.0, *) {
+            session.getAllTasks(completionHandler: { tasks in
+                print(tasks)
+            })
+        }
     }
     
     func applicationWillTerminate(_ application: UIApplication) {
@@ -1741,6 +1749,11 @@ final class SharedApplicationContext {
         })
     }
     
+    func application(_ application: UIApplication, handleEventsForBackgroundURLSession identifier: String, completionHandler: @escaping () -> Void) {
+        Logger.shared.log("App \(self.episodeId)", "handleEventsForBackgroundURLSession \(identifier)")
+        completionHandler()
+    }
+    
     override var next: UIResponder? {
         if let context = self.contextValue, let controller = context.context.keyShortcutsController {
             return controller

submodules/TelegramUI/TelegramUI/ChatController.swift

@@ -563,7 +563,7 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
                     if Namespaces.Message.allScheduled.contains(message.id.namespace) {
                         reactionItems = []
                     }
-                    let controller = ContextController(account: strongSelf.context.account, theme: strongSelf.presentationData.theme, strings: strongSelf.presentationData.strings, source: ChatMessageContextExtractedContentSource(chatNode: strongSelf.chatDisplayNode, message: message), items: actions, reactionItems: reactionItems, recognizer: recognizer)
+                    let controller = ContextController(account: strongSelf.context.account, theme: strongSelf.presentationData.theme, strings: strongSelf.presentationData.strings, source: .extracted(ChatMessageContextExtractedContentSource(chatNode: strongSelf.chatDisplayNode, message: message)), items: actions, reactionItems: reactionItems, recognizer: recognizer)
                     strongSelf.currentContextController = controller
                     controller.reactionSelected = { [weak controller] value in
                         guard let strongSelf = self, let message = updatedMessages.first else {
@@ -1392,7 +1392,7 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
                         }
                     })))
                     
-                    let controller = ContextController(account: strongSelf.context.account, theme: strongSelf.presentationData.theme, strings: strongSelf.presentationData.strings, source: ChatMessageContextExtractedContentSource(chatNode: strongSelf.chatDisplayNode, message: message), items: actions, reactionItems: [], recognizer: nil)
+                    let controller = ContextController(account: strongSelf.context.account, theme: strongSelf.presentationData.theme, strings: strongSelf.presentationData.strings, source: .extracted(ChatMessageContextExtractedContentSource(chatNode: strongSelf.chatDisplayNode, message: message)), items: actions, reactionItems: [], recognizer: nil)
                     strongSelf.currentContextController = controller
                     strongSelf.window?.presentInGlobalOverlay(controller)
                 })
@@ -1432,7 +1432,7 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
                         f(.dismissWithoutContent)
                     })))
                     
-                    let controller = ContextController(account: strongSelf.context.account, theme: strongSelf.presentationData.theme, strings: strongSelf.presentationData.strings, source: ChatMessageContextExtractedContentSource(chatNode: strongSelf.chatDisplayNode, message: message), items: actions, reactionItems: [], recognizer: nil)
+                    let controller = ContextController(account: strongSelf.context.account, theme: strongSelf.presentationData.theme, strings: strongSelf.presentationData.strings, source: .extracted(ChatMessageContextExtractedContentSource(chatNode: strongSelf.chatDisplayNode, message: message)), items: actions, reactionItems: [], recognizer: nil)
                     strongSelf.currentContextController = controller
                     strongSelf.window?.presentInGlobalOverlay(controller)
                 })

submodules/TelegramUI/TelegramUI/ChatMessageInteractiveMediaNode.swift

@@ -832,7 +832,7 @@ final class ChatMessageInteractiveMediaNode: ASDisplayNode, GalleryItemTransitio
                                         }
                                         strongSelf.fetchDisposable.set(visibilityAwareFetchSignal.start())
                                     }
-                                } else if case .prefetch = automaticDownload, message.id.namespace != Namespaces.Message.SecretIncoming && message.id.namespace != Namespaces.Message.Local {
+                                } else if case .prefetch = automaticDownload, message.id.namespace != Namespaces.Message.SecretIncoming /*&& message.id.namespace != Namespaces.Message.Local*/ {
                                     if let file = media as? TelegramMediaFile {
                                         let fetchSignal = preloadVideoResource(postbox: context.account.postbox, resourceReference: AnyMediaReference.message(message: MessageReference(message), media: file).resourceReference(file.resource), duration: 4.0)
                                         let visibilityAwareFetchSignal = strongSelf.visibilityPromise.get()

submodules/TelegramUI/TelegramUI/FetchVideoMediaResource.swift

@@ -73,6 +73,151 @@ struct VideoConversionConfiguration {
     }
 }
 
+private final class FetchVideoLibraryMediaResourceItem {
+    let priority: MediaBoxFetchPriority
+    let signal: Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError>
+    let next: (MediaResourceDataFetchResult) -> Void
+    let error: (MediaResourceDataFetchError) -> Void
+    let completion: () -> Void
+    var isActive: Bool = false
+    var disposable: Disposable?
+    
+    init(priority: MediaBoxFetchPriority, signal: Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError>, next: @escaping (MediaResourceDataFetchResult) -> Void, error: @escaping (MediaResourceDataFetchError) -> Void, completion: @escaping () -> Void) {
+        self.priority = priority
+        self.signal = signal
+        self.next = next
+        self.error = error
+        self.completion = completion
+    }
+    
+    deinit {
+        self.disposable?.dispose()
+    }
+}
+
+private let fetchVideoLimit: Int = 2
+
+private final class FetchVideoLibraryMediaResourceContextImpl {
+    private let queue: Queue
+    var items: [FetchVideoLibraryMediaResourceItem] = []
+    
+    init(queue: Queue) {
+        self.queue = queue
+    }
+    
+    func add(priority: MediaBoxFetchPriority, signal: Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError>, next: @escaping (MediaResourceDataFetchResult) -> Void, error: @escaping (MediaResourceDataFetchError) -> Void, completion: @escaping () -> Void) -> Disposable {
+        let queue = self.queue
+        
+        let item = FetchVideoLibraryMediaResourceItem(priority: priority, signal: signal, next: next, error: error, completion: completion)
+        self.items.append(item)
+        
+        self.update()
+        
+        return ActionDisposable { [weak self, weak item] in
+            queue.async {
+                guard let strongSelf = self, let item = item else {
+                    return
+                }
+                for i in 0 ..< strongSelf.items.count {
+                    if strongSelf.items[i] === item {
+                        strongSelf.items[i].disposable?.dispose()
+                        strongSelf.items.remove(at: i)
+                        strongSelf.update()
+                        break
+                    }
+                }
+            }
+        }
+    }
+    
+    func update() {
+        let queue = self.queue
+        
+        var activeCount = 0
+        for item in self.items {
+            if item.isActive {
+                activeCount += 1
+            }
+        }
+        
+        while activeCount < fetchVideoLimit {
+            var maxPriorityIndex: Int?
+            for i in 0 ..< self.items.count {
+                if !self.items[i].isActive {
+                    if let maxPriorityIndexValue = maxPriorityIndex {
+                        if self.items[i].priority.rawValue > self.items[maxPriorityIndexValue].priority.rawValue {
+                            maxPriorityIndex = i
+                        }
+                    } else {
+                        maxPriorityIndex = i
+                    }
+                }
+            }
+            if let maxPriorityIndex = maxPriorityIndex {
+                let item = self.items[maxPriorityIndex]
+                item.isActive = true
+                activeCount += 1
+                assert(item.disposable == nil)
+                item.disposable = self.items[maxPriorityIndex].signal.start(next: { [weak item] value in
+                    queue.async {
+                        item?.next(value)
+                    }
+                }, error: { [weak item] value in
+                    queue.async {
+                        item?.error(value)
+                    }
+                }, completed: { [weak self, weak item] in
+                    queue.async {
+                        guard let strongSelf = self, let item = item else {
+                            return
+                        }
+                        for i in 0 ..< strongSelf.items.count {
+                            if strongSelf.items[i] === item {
+                                strongSelf.items.remove(at: i)
+                                item.completion()
+                                strongSelf.update()
+                                break
+                            }
+                        }
+                    }
+                })
+            } else {
+                break
+            }
+        }
+    }
+}
+
+private final class FetchVideoLibraryMediaResourceContext {
+    private let queue = Queue()
+    private let impl: QueueLocalObject<FetchVideoLibraryMediaResourceContextImpl>
+    
+    init() {
+        let queue = self.queue
+        self.impl = QueueLocalObject(queue: queue, generate: {
+            return FetchVideoLibraryMediaResourceContextImpl(queue: queue)
+        })
+    }
+    
+    func wrap(priority: MediaBoxFetchPriority, signal: Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError>) -> Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError> {
+        return Signal { subscriber in
+            let disposable = MetaDisposable()
+            self.impl.with { impl in
+                disposable.set(impl.add(priority: priority, signal: signal, next: { value in
+                    subscriber.putNext(value)
+                }, error: { error in
+                    subscriber.putError(error)
+                }, completion: {
+                    subscriber.putCompletion()
+                }))
+            }
+            return disposable
+        }
+    }
+}
+
+private let throttlingContext = FetchVideoLibraryMediaResourceContext()
+
 public func fetchVideoLibraryMediaResource(postbox: Postbox, resource: VideoLibraryMediaResource) -> Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError> {
     return postbox.preferencesView(keys: [PreferencesKeys.appConfiguration])
     |> take(1)
@@ -82,9 +227,8 @@ public func fetchVideoLibraryMediaResource(postbox: Postbox, resource: VideoLibr
     |> introduceError(MediaResourceDataFetchError.self)
     |> mapToSignal { appConfiguration -> Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError> in
         let config = VideoConversionConfiguration.with(appConfiguration: appConfiguration)
-        return Signal { subscriber in
+        let signal = Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError> { subscriber in
             subscriber.putNext(.reset)
-            
             let fetchResult = PHAsset.fetchAssets(withLocalIdentifiers: [resource.localIdentifier], options: nil)
             var requestId: PHImageRequestID?
             let disposable = MetaDisposable()
@@ -189,6 +333,7 @@ public func fetchVideoLibraryMediaResource(postbox: Postbox, resource: VideoLibr
                 disposable.dispose()
             }
         }
+        return throttlingContext.wrap(priority: .default, signal: signal)
     }
 }
 
@@ -201,7 +346,7 @@ func fetchLocalFileVideoMediaResource(postbox: Postbox, resource: LocalFileVideo
     |> introduceError(MediaResourceDataFetchError.self)
     |> mapToSignal { appConfiguration -> Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError> in
         let config = VideoConversionConfiguration.with(appConfiguration: appConfiguration)
-        return Signal { subscriber in
+        let signal = Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError> { subscriber in
             subscriber.putNext(.reset)
             
             let avAsset = AVURLAsset(url: URL(fileURLWithPath: resource.path))
@@ -267,6 +412,7 @@ func fetchLocalFileVideoMediaResource(postbox: Postbox, resource: LocalFileVideo
                 disposable.dispose()
             }
         }
+        return throttlingContext.wrap(priority: .default, signal: signal)
     }
 }