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f0b1f12160
* [ASEnvironmentTraitCollection] default user interface idiom to ASEnvironmentTraitCollection UIUserInterfaceIdiomUnspecified is -1 so we were actually defaulting our trait collection to UIUserInterfaceIdiomPhone (which is 0). * Fix a few places where we weren’t using the default method to create the base traits
80 lines
3.7 KiB
Objective-C
80 lines
3.7 KiB
Objective-C
//
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// ASEnvironmentInternal.h
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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 <AsyncDisplayKit/ASEnvironment.h>
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#pragma once
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BOOL ASEnvironmentStatePropagationEnabled();
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BOOL ASEnvironmentStateTraitCollectionPropagationEnabled();
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#pragma mark - Set and get extensible values for layout options
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void _ASEnvironmentLayoutOptionsExtensionSetBoolAtIndex(id<ASEnvironment> object, int idx, BOOL value);
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BOOL _ASEnvironmentLayoutOptionsExtensionGetBoolAtIndex(id<ASEnvironment> object, int idx);
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void _ASEnvironmentLayoutOptionsExtensionSetIntegerAtIndex(id<ASEnvironment> object, int idx, NSInteger value);
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NSInteger _ASEnvironmentLayoutOptionsExtensionGetIntegerAtIndex(id<ASEnvironment> object, int idx);
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void _ASEnvironmentLayoutOptionsExtensionSetEdgeInsetsAtIndex(id<ASEnvironment> object, int idx, UIEdgeInsets value);
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UIEdgeInsets _ASEnvironmentLayoutOptionsExtensionGetEdgeInsetsAtIndex(id<ASEnvironment> object, int idx);
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#pragma mark - Traversing an ASEnvironment Tree
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void ASEnvironmentPerformBlockOnObjectAndChildren(id<ASEnvironment> object, void(^block)(id<ASEnvironment> object));
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void ASEnvironmentPerformBlockOnObjectAndParents(id<ASEnvironment> object, void(^block)(id<ASEnvironment> object));
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#pragma mark -
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enum class ASEnvironmentStatePropagation { DOWN, UP };
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#pragma mark - Merging
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static const struct ASEnvironmentStateExtensions ASEnvironmentDefaultStateExtensions = {};
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static const struct ASEnvironmentLayoutOptionsState ASEnvironmentDefaultLayoutOptionsState = ASEnvironmentLayoutOptionsStateMakeDefault();
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ASEnvironmentState ASEnvironmentMergeObjectAndState(ASEnvironmentState environmentState, ASEnvironmentLayoutOptionsState state, ASEnvironmentStatePropagation propagation);
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static const struct ASEnvironmentHierarchyState ASEnvironmentDefaultHierarchyState = ASEnvironmentHierarchyStateMakeDefault();
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ASEnvironmentState ASEnvironmentMergeObjectAndState(ASEnvironmentState environmentState, ASEnvironmentHierarchyState state, ASEnvironmentStatePropagation propagation);
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static const struct ASEnvironmentTraitCollection ASEnvironmentDefaultTraitCollection = ASEnvironmentTraitCollectionMakeDefault();
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ASEnvironmentState ASEnvironmentMergeObjectAndState(ASEnvironmentState environmentState, ASEnvironmentTraitCollection state, ASEnvironmentStatePropagation propagation);
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#pragma mark - Propagation
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template <typename ASEnvironmentStateType>
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void ASEnvironmentStatePropagateDown(id<ASEnvironment> object, ASEnvironmentStateType state) {
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ASEnvironmentPerformBlockOnObjectAndChildren(object, ^(id<ASEnvironment> node) {
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node.environmentState = ASEnvironmentMergeObjectAndState(node.environmentState, state, ASEnvironmentStatePropagation::DOWN);
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});
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}
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template <typename ASEnvironmentStateType>
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void ASEnvironmentStatePropagateUp(id<ASEnvironment> object, ASEnvironmentStateType state) {
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ASEnvironmentPerformBlockOnObjectAndParents(object, ^(id<ASEnvironment> node) {
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node.environmentState = ASEnvironmentMergeObjectAndState(node.environmentState, state, ASEnvironmentStatePropagation::UP);
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});
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}
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template <typename ASEnvironmentStateType>
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void ASEnvironmentStateApply(id<ASEnvironment> object, ASEnvironmentStateType& state, ASEnvironmentStatePropagation propagate) {
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if (propagate == ASEnvironmentStatePropagation::DOWN) {
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ASEnvironmentStatePropagateUp(object, state);
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} else if (propagate == ASEnvironmentStatePropagation::UP) {
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ASEnvironmentStatePropagateDown(object, state);
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}
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}
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