Get CatDealsCollectionView example running again #trivial

examples/CatDealsCollectionView/Sample/BlurbNode.h

@@ -1,18 +1,18 @@
 //
 //  BlurbNode.h
-//  Sample
+//  Texture
 //
 //  Copyright (c) 2014-present, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
+//  LICENSE file in the /ASDK-Licenses directory of this source tree. An additional
+//  grant of patent rights can be found in the PATENTS file in the same directory.
 //
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
-//  FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-//  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-//  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//  Modifications to this file made after 4/13/2017 are: Copyright (c) through the present,
+//  Pinterest, Inc.  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
 //
 
 #import <AsyncDisplayKit/AsyncDisplayKit.h>

examples/CatDealsCollectionView/Sample/BlurbNode.m

@@ -1,18 +1,18 @@
 //
 //  BlurbNode.m
-//  Sample
+//  Texture
 //
 //  Copyright (c) 2014-present, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
+//  LICENSE file in the /ASDK-Licenses directory of this source tree. An additional
+//  grant of patent rights can be found in the PATENTS file in the same directory.
 //
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
-//  FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-//  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-//  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//  Modifications to this file made after 4/13/2017 are: Copyright (c) through the present,
+//  Pinterest, Inc.  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
 //
 
 #import "BlurbNode.h"
@@ -57,16 +57,15 @@ - (instancetype)init
   NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:blurb];
   [string addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"HelveticaNeue-Light" size:16.0f] range:NSMakeRange(0, blurb.length)];
   [string addAttributes:@{
-                          NSLinkAttributeName: [NSURL URLWithString:@"http://lorempixel.com/"],
-                          NSForegroundColorAttributeName: [UIColor blueColor],
-                          NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle | NSUnderlinePatternDot),
-                          }
-                  range:[blurb rangeOfString:@"lorempixel.com"]];
+    NSLinkAttributeName: [NSURL URLWithString:@"http://lorempixel.com/"],
+    NSForegroundColorAttributeName: [UIColor blueColor],
+    NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle | NSUnderlinePatternDot),
+  } range:[blurb rangeOfString:@"lorempixel.com"]];
   [string addAttributes:@{
-                          NSLinkAttributeName: [NSURL URLWithString:@"http://www.catipsum.com/"],
-                          NSForegroundColorAttributeName: [UIColor blueColor],
-                          NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle | NSUnderlinePatternDot),
-                          } range:[blurb rangeOfString:@"catipsum.com"]];
+    NSLinkAttributeName: [NSURL URLWithString:@"http://www.catipsum.com/"],
+    NSForegroundColorAttributeName: [UIColor blueColor],
+    NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle | NSUnderlinePatternDot),
+  } range:[blurb rangeOfString:@"catipsum.com"]];
   _textNode.attributedText = string;
 
   // add it as a subnode, and we're done
@@ -90,7 +89,7 @@ - (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize
   centerSpec.sizingOptions = ASCenterLayoutSpecSizingOptionMinimumY;
   centerSpec.child = _textNode;
 
-  UIEdgeInsets padding =UIEdgeInsetsMake(kTextPadding, kTextPadding, kTextPadding, kTextPadding);
+  UIEdgeInsets padding = UIEdgeInsetsMake(kTextPadding, kTextPadding, kTextPadding, kTextPadding);
   return [ASInsetLayoutSpec insetLayoutSpecWithInsets:padding child:centerSpec];
 }
 

examples/CatDealsCollectionView/Sample/ItemNode.h

@@ -20,7 +20,6 @@
 
 @interface ItemNode : ASCellNode
 
-- initWithViewModel:(ItemViewModel *)viewModel;
 + (CGSize)sizeForWidth:(CGFloat)width;
 + (CGSize)preferredViewSize;
 

examples/CatDealsCollectionView/Sample/ItemNode.m

@@ -20,6 +20,16 @@
 #import "PlaceholderNetworkImageNode.h"
 #import <AsyncDisplayKit/ASDisplayNodeExtras.h>
 
+static CGFloat ASIsRTL()
+{
+  static BOOL __isRTL = NO;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    __isRTL = [UIApplication sharedApplication].userInterfaceLayoutDirection == UIUserInterfaceLayoutDirectionRightToLeft;
+  });
+  return __isRTL;
+}
+
 const CGFloat kFixedLabelsAreaHeight = 96.0;
 const CGFloat kDesignWidth = 320.0;
 const CGFloat kDesignHeight = 299.0;
@@ -28,7 +38,7 @@
 
 @interface ItemNode() <ASNetworkImageNodeDelegate>
 
-@property (nonatomic, strong) ItemViewModel *viewModel;
+@property (nonatomic, strong) ItemViewModel *nodeModel;
 
 @property (nonatomic, strong) PlaceholderNetworkImageNode *dealImageView;
 
@@ -46,28 +56,35 @@ @interface ItemNode() <ASNetworkImageNodeDelegate>
 @end
 
 @implementation ItemNode
-@dynamic viewModel;
+// Defined on ASCellNode
+@dynamic nodeModel;
 
-- (instancetype)initWithViewModel:(ItemViewModel *)viewModel
++ (void)load
+{
+  // Need to happen on main thread.
+  ASIsRTL();
+}
+
+- (instancetype)init
 {
   self = [super init];
   if (self != nil) {
-    self.viewModel = viewModel;
-    [self setup];
-    [self updateLabels];
+    [self setupNodes];
     [self updateBackgroundColor];
-
-    ASSetDebugName(self, @"Item #%zd", viewModel.identifier);
-    self.accessibilityIdentifier = viewModel.titleText;
   }
   return self;
 }
 
-+ (BOOL)isRTL {
-  return [UIApplication sharedApplication].userInterfaceLayoutDirection == UIUserInterfaceLayoutDirectionRightToLeft;
+- (void)setNodeModel:(ItemViewModel *)nodeModel
+{
+  [super setNodeModel:nodeModel];
+
+  [self updateLabels];
+  [self updateAccessibilityIdentifier];
 }
 
-- (void)setup {
+- (void)setupNodes
+{
   self.dealImageView = [[PlaceholderNetworkImageNode alloc] init];
   self.dealImageView.delegate = self;
   self.dealImageView.placeholderEnabled = YES;
@@ -138,7 +155,7 @@ - (void)setup {
   self.soldOutLabelBackground.hidden = YES;
   self.soldOutLabelFlat.hidden = YES;
 
-  if ([ItemNode isRTL]) {
+  if (ASIsRTL()) {
     self.titleLabel.style.alignSelf = ASStackLayoutAlignSelfEnd;
     self.firstInfoLabel.style.alignSelf = ASStackLayoutAlignSelfEnd;
     self.distanceLabel.style.alignSelf = ASStackLayoutAlignSelfEnd;
@@ -154,49 +171,56 @@ - (void)setup {
   }
 }
 
-- (void)updateLabels {
+- (void)updateLabels
+{
   // Set Title text
-  if (self.viewModel.titleText) {
-    self.titleLabel.attributedText = [[NSAttributedString alloc] initWithString:self.viewModel.titleText attributes:[ItemStyles titleStyle]];
+  if (self.nodeModel.titleText) {
+    self.titleLabel.attributedText = [[NSAttributedString alloc] initWithString:self.nodeModel.titleText attributes:[ItemStyles titleStyle]];
   }
-  if (self.viewModel.firstInfoText) {
-    self.firstInfoLabel.attributedText = [[NSAttributedString alloc] initWithString:self.viewModel.firstInfoText attributes:[ItemStyles subtitleStyle]];
+  if (self.nodeModel.firstInfoText) {
+    self.firstInfoLabel.attributedText = [[NSAttributedString alloc] initWithString:self.nodeModel.firstInfoText attributes:[ItemStyles subtitleStyle]];
   }
 
-  if (self.viewModel.secondInfoText) {
-    self.secondInfoLabel.attributedText = [[NSAttributedString alloc] initWithString:self.viewModel.secondInfoText attributes:[ItemStyles secondInfoStyle]];
+  if (self.nodeModel.secondInfoText) {
+    self.secondInfoLabel.attributedText = [[NSAttributedString alloc] initWithString:self.nodeModel.secondInfoText attributes:[ItemStyles secondInfoStyle]];
   }
-  if (self.viewModel.originalPriceText) {
-    self.originalPriceLabel.attributedText = [[NSAttributedString alloc] initWithString:self.viewModel.originalPriceText attributes:[ItemStyles originalPriceStyle]];
+  if (self.nodeModel.originalPriceText) {
+    self.originalPriceLabel.attributedText = [[NSAttributedString alloc] initWithString:self.nodeModel.originalPriceText attributes:[ItemStyles originalPriceStyle]];
   }
-  if (self.viewModel.finalPriceText) {
-        self.finalPriceLabel.attributedText = [[NSAttributedString alloc] initWithString:self.viewModel.finalPriceText attributes:[ItemStyles finalPriceStyle]];
+  if (self.nodeModel.finalPriceText) {
+    self.finalPriceLabel.attributedText = [[NSAttributedString alloc] initWithString:self.nodeModel.finalPriceText attributes:[ItemStyles finalPriceStyle]];
   }
-  if (self.viewModel.distanceLabelText) {
-    NSString *format = [ItemNode isRTL] ? @"%@ •" : @"• %@";
-    NSString *distanceText = [NSString stringWithFormat:format, self.viewModel.distanceLabelText];
+  if (self.nodeModel.distanceLabelText) {
+    NSString *format = ASIsRTL() ? @"%@ •" : @"• %@";
+    NSString *distanceText = [NSString stringWithFormat:format, self.nodeModel.distanceLabelText];
 
     self.distanceLabel.attributedText = [[NSAttributedString alloc] initWithString:distanceText attributes:[ItemStyles distanceStyle]];
   }
 
-  BOOL isSoldOut = self.viewModel.soldOutText != nil;
+  BOOL isSoldOut = self.nodeModel.soldOutText != nil;
 
   if (isSoldOut) {
-    NSString *soldOutText = self.viewModel.soldOutText;
+    NSString *soldOutText = self.nodeModel.soldOutText;
     self.soldOutLabelFlat.attributedText = [[NSAttributedString alloc] initWithString:soldOutText attributes:[ItemStyles soldOutStyle]];
   }
   self.soldOutOverlay.hidden = !isSoldOut;
   self.soldOutLabelFlat.hidden = !isSoldOut;
   self.soldOutLabelBackground.hidden = !isSoldOut;
 
-  BOOL hasBadge = self.viewModel.badgeText != nil;
+  BOOL hasBadge = self.nodeModel.badgeText != nil;
   if (hasBadge) {
-    self.badge.attributedText = [[NSAttributedString alloc] initWithString:self.viewModel.badgeText attributes:[ItemStyles badgeStyle]];
+    self.badge.attributedText = [[NSAttributedString alloc] initWithString:self.nodeModel.badgeText attributes:[ItemStyles badgeStyle]];
     self.badge.backgroundColor = [ItemStyles badgeColor];
   }
   self.badge.hidden = !hasBadge;
 }
 
+- (void)updateAccessibilityIdentifier
+{
+  ASSetDebugName(self, @"Item #%zd", self.nodeModel.identifier);
+  self.accessibilityIdentifier = self.nodeModel.titleText;
+}
+
 - (void)updateBackgroundColor
 {
   if (self.highlighted) {
@@ -208,9 +232,6 @@ - (void)updateBackgroundColor
   }
 }
 
-- (void)imageNode:(ASNetworkImageNode *)imageNode didLoadImage:(UIImage *)image {
-}
-
 - (void)setSelected:(BOOL)selected
 {
   [super setSelected:selected];
@@ -223,21 +244,22 @@ - (void)setHighlighted:(BOOL)highlighted
   [self updateBackgroundColor];
 }
 
-#pragma mark - superclass
+#pragma mark - ASDisplayNode
 
-- (void)displayWillStart {
+- (void)displayWillStart
+{
   [super displayWillStart];
   [self didEnterPreloadState];
 }
 
-- (void)didEnterPreloadState {
+- (void)didEnterPreloadState
+{
   [super didEnterPreloadState];
-  if (self.viewModel) {
+  if (self.nodeModel) {
     [self loadImage];
   }
 }
 
-
 - (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize {
 
   ASLayoutSpec *textSpec = [self textSpec];
@@ -253,7 +275,8 @@ - (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize {
   return soldOutOverlay;
 }
 
-- (ASLayoutSpec *)textSpec {
+- (ASLayoutSpec *)textSpec
+{
   CGFloat kInsetHorizontal = 16.0;
   CGFloat kInsetTop = 6.0;
   CGFloat kInsetBottom = 0.0;
@@ -271,7 +294,7 @@ - (ASLayoutSpec *)textSpec {
 
   NSArray *info1Children = @[self.firstInfoLabel, self.distanceLabel, horizontalSpacer1, self.originalPriceLabel];
   NSArray *info2Children = @[self.secondInfoLabel, horizontalSpacer2, self.finalPriceLabel];
-  if ([ItemNode isRTL]) {
+  if (ASIsRTL()) {
     info1Children = [[info1Children reverseObjectEnumerator] allObjects];
     info2Children = [[info2Children reverseObjectEnumerator] allObjects];
   }
@@ -288,7 +311,8 @@ - (ASLayoutSpec *)textSpec {
   return textWrapper;
 }
 
-- (ASLayoutSpec *)imageSpecWithSize:(ASSizeRange)constrainedSize {
+- (ASLayoutSpec *)imageSpecWithSize:(ASSizeRange)constrainedSize
+{
   CGFloat imageRatio = [self imageRatioFromSize:constrainedSize.max];
 
   ASRatioLayoutSpec *imagePlace = [ASRatioLayoutSpec ratioLayoutSpecWithRatio:imageRatio child:self.dealImageView];
@@ -310,34 +334,38 @@ - (ASLayoutSpec *)soldOutLabelSpec {
   return soldOutLabelOverBackground;
 }
 
-
-+ (CGSize)sizeForWidth:(CGFloat)width {
++ (CGSize)sizeForWidth:(CGFloat)width
+{
   CGFloat height = [self scaledHeightForPreferredSize:[self preferredViewSize] scaledWidth:width];
   return CGSizeMake(width, height);
 }
 
 
-+ (CGSize)preferredViewSize {
++ (CGSize)preferredViewSize
+{
   return CGSizeMake(kDesignWidth, kDesignHeight);
 }
 
-+ (CGFloat)scaledHeightForPreferredSize:(CGSize)preferredSize scaledWidth:(CGFloat)scaledWidth {
++ (CGFloat)scaledHeightForPreferredSize:(CGSize)preferredSize scaledWidth:(CGFloat)scaledWidth
+{
   CGFloat scale = scaledWidth / kDesignWidth;
   CGFloat scaledHeight = ceilf(scale * (kDesignHeight - kFixedLabelsAreaHeight)) + kFixedLabelsAreaHeight;
 
   return scaledHeight;
 }
 
-#pragma mark - view operations
+#pragma mark - Image
 
-- (CGFloat)imageRatioFromSize:(CGSize)size {
+- (CGFloat)imageRatioFromSize:(CGSize)size
+{
   CGFloat imageHeight = size.height - kFixedLabelsAreaHeight;
   CGFloat imageRatio = imageHeight / size.width;
 
   return imageRatio;
 }
 
-- (CGSize)imageSize {
+- (CGSize)imageSize
+{
   if (!CGSizeEqualToSize(self.dealImageView.frame.size, CGSizeZero)) {
     return self.dealImageView.frame.size;
   } else if (!CGSizeEqualToSize(self.calculatedSize, CGSizeZero)) {
@@ -349,13 +377,14 @@ - (CGSize)imageSize {
   }
 }
 
-- (void)loadImage {
+- (void)loadImage
+{
   CGSize imageSize = [self imageSize];
   if (CGSizeEqualToSize(CGSizeZero, imageSize)) {
     return;
   }
 
-  NSURL *url = [self.viewModel imageURLWithSize:imageSize];
+  NSURL *url = [self.nodeModel imageURLWithSize:imageSize];
 
   // if we're trying to set the deal image to what it already was, skip the work
   if ([[url absoluteString] isEqualToString:[self.dealImageView.URL absoluteString]]) {