db7aa9eeaf
Summary: Move UIDebugger plugin to OSS space. Reviewed By: passy Differential Revision: D47634848 fbshipit-source-id: 90e8c0181a2434d0e5d76bdb99b902051e6d702e
122 lines
3.2 KiB
Objective-C
122 lines
3.2 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 "UIDUIApplicationObserver.h"
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#import "UIDContext.h"
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#import "UIDMainThread.h"
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#import "UIDUIViewBasicObserver.h"
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#define UID_THROTTLE_SECONDS 1
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@interface UIDUIApplicationObserver ()<UIDUIViewObserverDelegate> {
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UIDContext* _context;
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UIDUIViewBasicObserver* _viewObserver;
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CFRunLoopObserverRef _observer;
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NSTimeInterval _lastInvocationTimestamp;
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bool _dirty;
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}
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@end
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@implementation UIDUIApplicationObserver
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- (instancetype)initWithContext:(UIDContext*)context {
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self = [super init];
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if (self) {
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_context = context;
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_lastInvocationTimestamp = 0;
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_dirty = true;
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_viewObserver = [[UIDUIViewBasicObserver alloc] initWithContext:_context
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delegate:self];
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self.type = @"UIApplication";
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}
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return self;
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}
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- (void)subscribe:(UIApplication*)node {
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__weak typeof(self) weakSelf = self;
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_observer = CFRunLoopObserverCreateWithHandler(
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kCFAllocatorDefault,
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kCFRunLoopBeforeWaiting,
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true,
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INT_MAX,
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^(CFRunLoopObserverRef observer, CFRunLoopActivity activity) {
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typeof(self) strongSelf = weakSelf;
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if (strongSelf) {
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NSTimeInterval currentTimestamp =
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[NSDate timeIntervalSinceReferenceDate];
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if (strongSelf->_lastInvocationTimestamp == 0 ||
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(currentTimestamp - strongSelf->_lastInvocationTimestamp >=
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UID_THROTTLE_SECONDS)) {
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strongSelf->_lastInvocationTimestamp = currentTimestamp;
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if (strongSelf->_dirty) {
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strongSelf->_dirty = false;
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[self processNode:strongSelf->_context.application
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withSnapshot:true
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withContext:strongSelf->_context];
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}
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}
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}
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});
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CFRunLoopAddObserver(CFRunLoopGetMain(), _observer, kCFRunLoopCommonModes);
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[[NSNotificationCenter defaultCenter]
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addObserver:self
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selector:@selector(orientationChanged:)
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name:UIDeviceOrientationDidChangeNotification
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object:nil];
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}
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- (void)unsubscribe {
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CFRunLoopRemoveObserver(CFRunLoopGetMain(), _observer, kCFRunLoopCommonModes);
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CFRelease(_observer);
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_observer = nil;
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[[NSNotificationCenter defaultCenter]
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removeObserver:self
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name:UIDeviceOrientationDidChangeNotification
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object:nil];
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_dirty = true;
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}
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- (void)orientationChanged:(NSNotification*)notification {
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/**
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Do not mark as dirty immediately as the view draws before
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is animated into position. Dispatch after the same throttle amount
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achieves the desired effect.
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*/
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UIDRunBlockOnMainThreadAfter(
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^{
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self->_dirty = true;
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},
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UID_THROTTLE_SECONDS);
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}
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- (void)viewUpdateWith:(UIView*)node {
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_dirty = true;
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}
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@end
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@implementation UIDUIApplicationObserverBuilder
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- (BOOL)canBuildFor:(id)node {
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return [node isKindOfClass:[UIApplication class]];
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}
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- (UIDTreeObserver*)buildWithContext:(UIDContext*)context {
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return [[UIDUIApplicationObserver alloc] initWithContext:context];
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}
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@end
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#endif
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