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* [Yoga] Rewrite YOGA_TREE_CONTIGUOUS mode with support for mixing with ASLayoutSpec. After experimentation with the ASYogaLayoutSpec (or non-contiguous) approach to integrating Yoga, test results and feedback from the authors of Yoga have shown that this approach can't be made completely correct, There are issues with some of the features required to represent Web-style flexbox; in particular: padding, margins, and border handling have varience. This diff is a first step towards a truly correct and elegant implementation of Yoga integration with Texture. In addition to reducing the footprint of the integration, which is an explicit goal of work at this stage, these changes already support improved behavior - including mixing between ASLayoutSpecs even as subnodes of Yoga layout-driven nodes, in addition to above them. Yoga may be used for any set of nodes. Because Yoga usage is limited at this time, it's safe to merge this diff and further improvements will be refinements in this direction. * [ASDKgram] Add Yoga layout implementation for PhotoCellNode. * [Yoga] Final fixes for the upgraded implementation of the Contiguous layout mode. * [Yoga] Add CHANGELOG.md entry and fix for Yoga rounding to screen scale. * [Yoga] Minor cleanup to remove old comments and generalize utility methods.
59 lines
2.3 KiB
Objective-C
59 lines
2.3 KiB
Objective-C
//
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// ASAvailability.h
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// Texture
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the /ASDK-Licenses directory of this source tree. An additional
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// grant of patent rights can be found in the PATENTS file in the same directory.
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//
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// Modifications to this file made after 4/13/2017 are: Copyright (c) 2017-present,
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// Pinterest, Inc. Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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#import <CoreFoundation/CFBase.h>
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#pragma once
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#ifndef kCFCoreFoundationVersionNumber_iOS_9_0
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#define kCFCoreFoundationVersionNumber_iOS_9_0 1240.10
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#endif
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#ifndef kCFCoreFoundationVersionNumber_iOS_10_0
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#define kCFCoreFoundationVersionNumber_iOS_10_0 1348.00
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#endif
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#define AS_AT_LEAST_IOS9 (kCFCoreFoundationVersionNumber >= kCFCoreFoundationVersionNumber_iOS_9_0)
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#define AS_AT_LEAST_IOS10 (kCFCoreFoundationVersionNumber >= kCFCoreFoundationVersionNumber_iOS_10_0)
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// If Yoga is available, make it available anywhere we use ASAvailability.
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// This reduces Yoga-specific code in other files.
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// NOTE: Yoga integration is experimental and not fully tested. Use with caution and test layouts carefully.
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#ifndef YOGA_HEADER_PATH
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#define YOGA_HEADER_PATH <yoga/Yoga.h>
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#endif
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#ifndef YOGA
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#define YOGA __has_include(YOGA_HEADER_PATH)
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#endif
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// Contiguous Yoga layout attempts to build a connected tree of YGNodeRef objects, across multiple levels
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// in the ASDisplayNode tree (based on .yogaChildren). When disabled, ASYogaLayoutSpec is used, with a
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// disjoint Yoga tree for each level in the hierarchy. Currently, both modes are experimental.
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#ifndef YOGA_TREE_CONTIGUOUS
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#define YOGA_TREE_CONTIGUOUS YOGA // To enable, set to YOGA, as the code depends on YOGA also being set.
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#endif
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#define AS_PIN_REMOTE_IMAGE __has_include(<PINRemoteImage/PINRemoteImage.h>)
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#define AS_IG_LIST_KIT __has_include(<IGListKit/IGListKit.h>)
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/**
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* For IGListKit versions < 3.0, you have to use IGListCollectionView.
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* For 3.0 and later, that class is removed and you use UICollectionView.
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*/
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#define IG_LIST_COLLECTION_VIEW __has_include(<IGListKit/IGListCollectionView.h>)
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