550b49e690
Summary: In this diff we load and call a private API enabling voiceover hierarchy and pass it over via existing channel when client is in the accessibility mode Reviewed By: lblasa Differential Revision: D49393813 fbshipit-source-id: 437af1131547218cd52f4a56797707411787d7cf
91 lines
2.3 KiB
Objective-C
91 lines
2.3 KiB
Objective-C
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#if FB_SONARKIT_ENABLED
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#import "UIDTreeObserver.h"
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#import "UIDAllyTraversal.h"
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#import "UIDContext.h"
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#import "UIDHierarchyTraversal.h"
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#import "UIDTimeUtilities.h"
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@implementation UIDTreeObserver
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- (instancetype)init {
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self = [super init];
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if (self) {
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_children = [NSMutableDictionary new];
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}
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return self;
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}
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- (void)subscribe:(id)node {
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}
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- (void)unsubscribe {
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}
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- (void)processNode:(id)node withContext:(UIDContext*)context {
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[self processNode:node withSnapshot:false withContext:context];
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}
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- (void)processNode:(id)node
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withSnapshot:(BOOL)snapshot
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withContext:(UIDContext*)context {
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NSTimeInterval timestamp = UIDPerformanceTimeIntervalSince1970();
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uint64_t t0 = UIDPerformanceNow();
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UIDNodeDescriptor* descriptor =
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[context.descriptorRegister descriptorForClass:[node class]];
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UIDNodeDescriptor* rootDescriptor = [context.descriptorRegister
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descriptorForClass:[context.application class]];
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NSArray* nodes;
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switch (_traversalMode) {
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case UIDTraversalModeViewHierarchy: {
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UIDHierarchyTraversal* const traversal = [UIDHierarchyTraversal
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createWithDescriptorRegister:context.descriptorRegister];
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nodes = [traversal traverse:node];
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break;
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}
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case UIDTraversalModeAccessibilityHierarchy: {
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UIDAllyTraversal* allyTraversal = [[UIDAllyTraversal alloc]
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initWithDescriptorRegister:context.descriptorRegister];
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nodes = [allyTraversal traverse:context.application root:node];
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break;
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}
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default:
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// Unexpected value, abort
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return;
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}
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uint64_t t1 = UIDPerformanceNow();
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UIImage* screenshot = [rootDescriptor snapshotForNode:context.application];
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uint64_t t2 = UIDPerformanceNow();
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UIDSubtreeUpdate* update = [UIDSubtreeUpdate new];
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update.observerType = _type;
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update.rootId = [descriptor identifierForNode:node];
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update.nodes = nodes;
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update.snapshot = screenshot;
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update.timestamp = timestamp;
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update.traversalMS = UIDMonotonicTimeConvertMachUnitsToMS(t1 - t0);
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update.snapshotMS = UIDMonotonicTimeConvertMachUnitsToMS(t2 - t1);
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[context.updateDigester digest:update];
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}
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- (void)cleanup {
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}
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@end
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#endif
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