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c0be871812
Previously we were only propagating the trait collection on `viewWillTransitionToSize` since it is called shortly after `willTransitionToTraitCollection`. However, some important things can happen in that time “shortly after” (like collection view layout). As long as nothing changes from `willTransitionToTraitCollection` to `viewWillTransitionToSize` (which it shouldn’t) the traits will not be re-propagated anyhow. Also make sure to use the `ASEnvironmentTraitCollectionMakeDefault` method when creating new envTraitCollection so the struct isn’t filled with junk.
72 lines
2.5 KiB
Plaintext
72 lines
2.5 KiB
Plaintext
//
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// ASEnvironment.mm
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// AsyncDisplayKit
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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 root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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#import "ASEnvironmentInternal.h"
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#import "ASAvailability.h"
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ASEnvironmentLayoutOptionsState ASEnvironmentLayoutOptionsStateMakeDefault()
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{
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return (ASEnvironmentLayoutOptionsState) {
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// Default values can be defined in here
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};
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}
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ASEnvironmentHierarchyState ASEnvironmentHierarchyStateMakeDefault()
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{
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return (ASEnvironmentHierarchyState) {
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// Default values can be defined in here
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};
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}
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ASEnvironmentTraitCollection ASEnvironmentTraitCollectionMakeDefault()
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{
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return (ASEnvironmentTraitCollection) {
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// Default values can be defined in here
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.userInterfaceIdiom = UIUserInterfaceIdiomUnspecified,
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.containerSize = CGSizeZero,
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};
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}
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ASEnvironmentTraitCollection ASEnvironmentTraitCollectionFromUITraitCollection(UITraitCollection *traitCollection)
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{
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ASEnvironmentTraitCollection environmentTraitCollection = ASEnvironmentTraitCollectionMakeDefault();
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if (AS_AT_LEAST_IOS8) {
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environmentTraitCollection.displayScale = traitCollection.displayScale;
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environmentTraitCollection.horizontalSizeClass = traitCollection.horizontalSizeClass;
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environmentTraitCollection.verticalSizeClass = traitCollection.verticalSizeClass;
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environmentTraitCollection.userInterfaceIdiom = traitCollection.userInterfaceIdiom;
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if (AS_AT_LEAST_IOS9) {
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environmentTraitCollection.forceTouchCapability = traitCollection.forceTouchCapability;
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}
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}
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return environmentTraitCollection;
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}
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BOOL ASEnvironmentTraitCollectionIsEqualToASEnvironmentTraitCollection(ASEnvironmentTraitCollection lhs, ASEnvironmentTraitCollection rhs)
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{
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return
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lhs.verticalSizeClass == rhs.verticalSizeClass &&
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lhs.horizontalSizeClass == rhs.horizontalSizeClass &&
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lhs.displayScale == rhs.displayScale &&
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lhs.userInterfaceIdiom == rhs.userInterfaceIdiom &&
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lhs.forceTouchCapability == rhs.forceTouchCapability &&
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CGSizeEqualToSize(lhs.containerSize, rhs.containerSize);
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}
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ASEnvironmentState ASEnvironmentStateMakeDefault()
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{
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return (ASEnvironmentState) {
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.layoutOptionsState = ASEnvironmentLayoutOptionsStateMakeDefault(),
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.hierarchyState = ASEnvironmentHierarchyStateMakeDefault(),
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.environmentTraitCollection = ASEnvironmentTraitCollectionMakeDefault()
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};
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}
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