first steps

AsyncDisplayKit/ASVideoPlayerNode.mm

@@ -0,0 +1,146 @@
+//
+//  ASVideoPlayerNode.m
+//  AsyncDisplayKit
+//
+//  Created by Erekle on 5/6/16.
+//  Copyright © 2016 Facebook. All rights reserved.
+//
+
+#import "ASVideoPlayerNode.h"
+
+static NSString * const kASVideoPlayerNodePlayButton = @"playButton";
+
+@interface ASVideoPlayerNode()
+{
+  ASDN::RecursiveMutex _videoPlayerLock;
+  
+  NSURL *_url;
+  AVAsset *_asset;
+  
+  ASVideoNode *_videoNode;
+  
+  ASDisplayNode *_controlsHolderNode;
+
+  NSArray *_neededControls;
+
+  NSMutableDictionary *_cachedControls;
+}
+
+@end
+
+@implementation ASVideoPlayerNode
+- (instancetype)init
+{
+  if (!(self = [super init])) {
+    return nil;
+  }
+
+  [self privateInit];
+
+  return self;
+}
+
+- (instancetype)initWithUrl:(NSURL*)url
+{
+  if (!(self = [super init])) {
+    return nil;
+  }
+  
+  _url = url;
+  
+  [self privateInit];
+  
+  return self;
+}
+
+- (instancetype)initWithAsset:(AVAsset *)asset
+{
+  if (!(self = [super init])) {
+    return nil;
+  }
+  
+  _asset = asset;
+
+  [self privateInit];
+
+  return self;
+}
+
+- (void)privateInit
+{
+
+  _neededControls = [self createNeededControlElementsArray];
+  _cachedControls = [[NSMutableDictionary alloc] init];
+
+  _videoNode = [[ASVideoNode alloc] init];
+  _videoNode.asset = [AVAsset assetWithURL:_url];
+  [self addSubnode:_videoNode];
+
+  _controlsHolderNode = [[ASDisplayNode alloc] init];
+  _controlsHolderNode.backgroundColor = [UIColor greenColor];
+  [self addSubnode:_controlsHolderNode];
+
+  [self createControls];
+}
+
+- (NSArray*)createNeededControlElementsArray
+{
+  //TODO:: Maybe here we will ask delegate what he needs and we force delegate to use our static strings or something like that
+  return @[kASVideoPlayerNodePlayButton];
+}
+
+#pragma mark - UI
+- (void)createControls
+{
+  for (NSString *controlType in _neededControls) {
+    if ([controlType isEqualToString:kASVideoPlayerNodePlayButton]) {
+      [self createPlayButton];
+    }
+  }
+}
+
+- (void)createPlayButton
+{
+  ASControlNode *playButton = [_cachedControls objectForKey:kASVideoPlayerNodePlayButton];
+  if (!playButton) {
+    playButton = [[ASControlNode alloc] init];
+    playButton.preferredFrameSize = CGSizeMake(20.0, 20.0);
+    playButton.backgroundColor  = [UIColor redColor];
+
+    [_cachedControls setObject:playButton forKey:kASVideoPlayerNodePlayButton];
+  }
+
+  [self addSubnode:playButton];
+}
+
+#pragma mark - Layout
+- (ASLayoutSpec*)layoutSpecThatFits:(ASSizeRange)constrainedSize
+{
+  _videoNode.preferredFrameSize = constrainedSize.max;
+
+  ASLayoutSpec *spacer = [[ASLayoutSpec alloc] init];
+  spacer.flexGrow = YES;
+
+  ASStackLayoutSpec *controlsSpec = [ASStackLayoutSpec stackLayoutSpecWithDirection:ASStackLayoutDirectionHorizontal
+                                                                            spacing:0.0
+                                                                     justifyContent:ASStackLayoutJustifyContentStart
+                                                                         alignItems:ASStackLayoutAlignItemsStart
+                                                                           children:[_cachedControls allValues]];
+
+  UIEdgeInsets insets = UIEdgeInsetsMake(8.0, 8.0, 8.0, 8.0);
+
+  ASInsetLayoutSpec *controlsInsetSpec = [ASInsetLayoutSpec insetLayoutSpecWithInsets:insets child:controlsSpec];
+
+  ASStackLayoutSpec *mainVerticalStack = [ASStackLayoutSpec stackLayoutSpecWithDirection:ASStackLayoutDirectionVertical
+                                                                                 spacing:0.0
+                                                                          justifyContent:ASStackLayoutJustifyContentStart
+                                                                              alignItems:ASStackLayoutAlignItemsStart
+                                                                                children:@[spacer,controlsInsetSpec]];
+
+  
+  ASOverlayLayoutSpec *overlaySpec = [ASOverlayLayoutSpec overlayLayoutSpecWithChild:_videoNode overlay:mainVerticalStack];
+
+  return [ASStaticLayoutSpec staticLayoutSpecWithChildren:@[overlaySpec]];
+}
+
+@end