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Disable a11y cache #1274

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merged 2 commits into from
Dec 9, 2018
Merged

Disable a11y cache #1274

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c559639
disable a11y cache
wsdwsd0829 Dec 1, 2018
63f45ee
style update
wsdwsd0829 Dec 8, 2018
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1 change: 1 addition & 0 deletions Source/ASExperimentalFeatures.h
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ typedef NS_OPTIONS(NSUInteger, ASExperimentalFeatures) {
ASExperimentalFramesetterCache = 1 << 7, // exp_framesetter_cache
ASExperimentalClearDataDuringDeallocation = 1 << 8, // exp_clear_data_during_deallocation
ASExperimentalDidEnterPreloadSkipASMLayout = 1 << 9, // exp_did_enter_preload_skip_asm_layout
ASExperimentalDisableAccessibilityCache = 1 << 10, // exp_disable_a11y_cache
ASExperimentalFeatureAll = 0xFFFFFFFF
};

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3 changes: 2 additions & 1 deletion Source/ASExperimentalFeatures.mm
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Expand Up @@ -21,7 +21,8 @@
@"exp_collection_teardown",
@"exp_framesetter_cache",
@"exp_clear_data_during_deallocation",
@"exp_did_enter_preload_skip_asm_layout"]));
@"exp_did_enter_preload_skip_asm_layout",
@"exp_disable_a11y_cache"]));

if (flags == ASExperimentalFeatureAll) {
return allNames;
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3 changes: 2 additions & 1 deletion Source/Details/_ASDisplayViewAccessiblity.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -273,7 +273,8 @@ - (NSArray *)accessibilityElements
if (viewNode == nil) {
return @[];
}
if (_accessibilityElements == nil) {

if (_accessibilityElements == nil || ASActivateExperimentalFeature(ASExperimentalDisableAccessibilityCache)) {
_accessibilityElements = [viewNode accessibilityElements];
}
return _accessibilityElements;
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4 changes: 3 additions & 1 deletion Tests/ASConfigurationTests.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,8 @@
ASExperimentalCollectionTeardown,
ASExperimentalFramesetterCache,
ASExperimentalClearDataDuringDeallocation,
ASExperimentalDidEnterPreloadSkipASMLayout
ASExperimentalDidEnterPreloadSkipASMLayout,
ASExperimentalDisableAccessibilityCache
};

@interface ASConfigurationTests : ASTestCase <ASConfigurationDelegate>
Expand All @@ -45,6 +46,7 @@ + (NSArray *)names {
@"exp_framesetter_cache",
@"exp_clear_data_during_deallocation",
@"exp_did_enter_preload_skip_asm_layout",
@"exp_disable_a11y_cache"
];
}

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191 changes: 189 additions & 2 deletions Tests/ASDisplayViewAccessibilityTests.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -14,12 +14,22 @@

#import <AsyncDisplayKit/ASDisplayNode.h>
#import <AsyncDisplayKit/ASDisplayNode+Beta.h>
#import <AsyncDisplayKit/ASTextNode.h>
#import "ASConfiguration.h"
#import "ASConfigurationInternal.h"

@interface ASDisplayViewAccessibilityTests : XCTestCase
@end

@implementation ASDisplayViewAccessibilityTests

- (void)setUp
{
ASConfiguration *config = [[ASConfiguration alloc] initWithDictionary:nil];
config.experimentalFeatures = ASExperimentalDisableAccessibilityCache;
[ASConfigurationManager test_resetWithConfiguration:config];
}

- (void)testAccessibilityElementsAccessors
{
// Setup nodes with accessibility info
Expand All @@ -39,7 +49,8 @@ - (void)testAccessibilityElementsAccessors
XCTAssertEqual([node.view indexOfAccessibilityElement:node.view.accessibilityElements.firstObject], 0);*/
}

- (void)testThatSubnodeAccessibilityLabelAggregationWorks {
- (void)testThatSubnodeAccessibilityLabelAggregationWorks
{
// Setup nodes
ASDisplayNode *node = nil;
ASDisplayNode *innerNode1 = nil;
Expand All @@ -62,7 +73,8 @@ - (void)testThatSubnodeAccessibilityLabelAggregationWorks {
[node.view.accessibilityElements.firstObject accessibilityLabel]);
}

- (void)testThatContainerAccessibilityLabelOverrideStopsAggregation {
- (void)testThatContainerAccessibilityLabelOverrideStopsAggregation
{
// Setup nodes
ASDisplayNode *node = nil;
ASDisplayNode *innerNode = nil;
Expand All @@ -82,4 +94,179 @@ - (void)testThatContainerAccessibilityLabelOverrideStopsAggregation {
[node.view.accessibilityElements.firstObject accessibilityLabel]);
}

- (void)testAccessibilityLayerbackedNodesOperationInContainer {
ASDisplayNode *contianer = [[ASDisplayNode alloc] init];
contianer.frame = CGRectMake(50, 50, 200, 400);
contianer.backgroundColor = [UIColor grayColor];
contianer.isAccessibilityContainer = YES;
// Do any additional setup after loading the view, typically from a nib.
ASTextNode *text1 = [[ASTextNode alloc] init];
text1.layerBacked = YES;
text1.attributedText = [[NSAttributedString alloc] initWithString:@"hello"];
text1.frame = CGRectMake(50, 100, 200, 200);
[contianer addSubnode:text1];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *elements = contianer.view.accessibilityElements;
XCTAssertTrue(elements.count == 1);
XCTAssertTrue([[elements.firstObject accessibilityLabel] isEqualToString:@"hello"]);
ASTextNode *text2 = [[ASTextNode alloc] init];
text2.layerBacked = YES;
text2.attributedText = [[NSAttributedString alloc] initWithString:@"world"];
text2.frame = CGRectMake(50, 300, 200, 200);
[contianer addSubnode:text2];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *updatedElements = contianer.view.accessibilityElements;
XCTAssertTrue(updatedElements.count == 1);
XCTAssertTrue([[updatedElements.firstObject accessibilityLabel] isEqualToString:@"hello, world"]);
ASTextNode *text3 = [[ASTextNode alloc] init];
text3.attributedText = [[NSAttributedString alloc] initWithString:@"!!!!"];
text3.frame = CGRectMake(50, 400, 200, 100);
text3.layerBacked = YES;
[text2 addSubnode:text3];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *updatedElements2 = contianer.view.accessibilityElements;
XCTAssertTrue([[updatedElements2.firstObject accessibilityLabel] isEqualToString:@"hello, world, !!!!"]);
}

- (void)testAccessibilityNonLayerbackedNodesOperationInContainer
{
ASDisplayNode *contianer = [[ASDisplayNode alloc] init];
contianer.frame = CGRectMake(50, 50, 200, 600);
contianer.backgroundColor = [UIColor grayColor];
contianer.isAccessibilityContainer = YES;
// Do any additional setup after loading the view, typically from a nib.
ASTextNode *text1 = [[ASTextNode alloc] init];
text1.attributedText = [[NSAttributedString alloc] initWithString:@"hello"];
text1.frame = CGRectMake(50, 100, 200, 200);
[contianer addSubnode:text1];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *elements = contianer.view.accessibilityElements;
XCTAssertTrue(elements.count == 1);
XCTAssertTrue([[elements.firstObject accessibilityLabel] isEqualToString:@"hello"]);
ASTextNode *text2 = [[ASTextNode alloc] init];
text2.attributedText = [[NSAttributedString alloc] initWithString:@"world"];
text2.frame = CGRectMake(50, 300, 200, 200);
[contianer addSubnode:text2];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *updatedElements = contianer.view.accessibilityElements;
XCTAssertTrue(updatedElements.count == 1);
XCTAssertTrue([[updatedElements.firstObject accessibilityLabel] isEqualToString:@"hello, world"]);
ASTextNode *text3 = [[ASTextNode alloc] init];
text3.attributedText = [[NSAttributedString alloc] initWithString:@"!!!!"];
text3.frame = CGRectMake(50, 400, 200, 100);
[text2 addSubnode:text3];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *updatedElements2 = contianer.view.accessibilityElements;
XCTAssertTrue([[updatedElements2.firstObject accessibilityLabel] isEqualToString:@"hello, world, !!!!"]);
}

- (void)testAccessibilityNonLayerbackedNodesOperationInNonContainer
{
ASDisplayNode *contianer = [[ASDisplayNode alloc] init];
contianer.frame = CGRectMake(50, 50, 200, 600);
contianer.backgroundColor = [UIColor grayColor];
// Do any additional setup after loading the view, typically from a nib.
ASTextNode *text1 = [[ASTextNode alloc] init];
text1.attributedText = [[NSAttributedString alloc] initWithString:@"hello"];
text1.frame = CGRectMake(50, 100, 200, 200);
[contianer addSubnode:text1];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *elements = contianer.view.accessibilityElements;
XCTAssertTrue(elements.count == 1);
XCTAssertTrue([[elements.firstObject accessibilityLabel] isEqualToString:@"hello"]);
ASTextNode *text2 = [[ASTextNode alloc] init];
text2.attributedText = [[NSAttributedString alloc] initWithString:@"world"];
text2.frame = CGRectMake(50, 300, 200, 200);
[contianer addSubnode:text2];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *updatedElements = contianer.view.accessibilityElements;
XCTAssertTrue(updatedElements.count == 2);
XCTAssertTrue([[updatedElements.firstObject accessibilityLabel] isEqualToString:@"hello"]);
XCTAssertTrue([[updatedElements.lastObject accessibilityLabel] isEqualToString:@"world"]);
ASTextNode *text3 = [[ASTextNode alloc] init];
text3.attributedText = [[NSAttributedString alloc] initWithString:@"!!!!"];
text3.frame = CGRectMake(50, 400, 200, 100);
[text2 addSubnode:text3];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *updatedElements2 = contianer.view.accessibilityElements;
//text3 won't be read out cause it's overshadowed by text2
XCTAssertTrue(updatedElements2.count == 2);
XCTAssertTrue([[updatedElements2.firstObject accessibilityLabel] isEqualToString:@"hello"]);
XCTAssertTrue([[updatedElements2.lastObject accessibilityLabel] isEqualToString:@"world"]);
}
- (void)testAccessibilityLayerbackedNodesOperationInNonContainer
{
ASDisplayNode *contianer = [[ASDisplayNode alloc] init];
contianer.frame = CGRectMake(50, 50, 200, 600);
contianer.backgroundColor = [UIColor grayColor];
// Do any additional setup after loading the view, typically from a nib.
ASTextNode *text1 = [[ASTextNode alloc] init];
text1.layerBacked = YES;
text1.attributedText = [[NSAttributedString alloc] initWithString:@"hello"];
text1.frame = CGRectMake(50, 0, 100, 100);
[contianer addSubnode:text1];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *elements = contianer.view.accessibilityElements;
XCTAssertTrue(elements.count == 1);
XCTAssertTrue([[elements.firstObject accessibilityLabel] isEqualToString:@"hello"]);
ASTextNode *text2 = [[ASTextNode alloc] init];
text2.layerBacked = YES;
text2.attributedText = [[NSAttributedString alloc] initWithString:@"world"];
text2.frame = CGRectMake(50, 100, 100, 100);
[contianer addSubnode:text2];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *updatedElements = contianer.view.accessibilityElements;
XCTAssertTrue(updatedElements.count == 2);
XCTAssertTrue([[updatedElements.firstObject accessibilityLabel] isEqualToString:@"hello"]);
XCTAssertTrue([[updatedElements.lastObject accessibilityLabel] isEqualToString:@"world"]);
ASTextNode *text3 = [[ASTextNode alloc] init];
text3.layerBacked = YES;
text3.attributedText = [[NSAttributedString alloc] initWithString:@"!!!!"];
text3.frame = CGRectMake(50, 200, 100, 100);
[text2 addSubnode:text3];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *updatedElements2 = contianer.view.accessibilityElements;
//text3 won't be read out cause it's overshadowed by text2
XCTAssertTrue(updatedElements2.count == 2);
XCTAssertTrue([[updatedElements2.firstObject accessibilityLabel] isEqualToString:@"hello"]);
XCTAssertTrue([[updatedElements2.lastObject accessibilityLabel] isEqualToString:@"world"]);
}

- (void)testAccessibilityUpdatesWithElementsChanges
{
ASDisplayNode *contianer = [[ASDisplayNode alloc] init];
contianer.frame = CGRectMake(50, 50, 200, 600);
contianer.backgroundColor = [UIColor grayColor];
contianer.isAccessibilityContainer = YES;
// Do any additional setup after loading the view, typically from a nib.
ASTextNode *text1 = [[ASTextNode alloc] init];
text1.layerBacked = YES;
text1.attributedText = [[NSAttributedString alloc] initWithString:@"hello"];
text1.frame = CGRectMake(50, 0, 100, 100);
[contianer addSubnode:text1];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *elements = contianer.view.accessibilityElements;
XCTAssertTrue(elements.count == 1);
XCTAssertTrue([[elements.firstObject accessibilityLabel] isEqualToString:@"hello"]);
text1.attributedText = [[NSAttributedString alloc] initWithString:@"greeting"];
[contianer layoutIfNeeded];
[contianer.layer displayIfNeeded];
NSArray<UIAccessibilityElement *> *elements2 = contianer.view.accessibilityElements;
XCTAssertTrue(elements2.count == 1);
XCTAssertTrue([[elements2.firstObject accessibilityLabel] isEqualToString:@"greeting"]);
}

@end