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prevent from publishing dimensions change event when app changes state #11

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merged 6 commits into from
Jun 9, 2022
Merged

prevent from publishing dimensions change event when app changes state #11

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8653851
fix useWindowDimensions, prevent from publishing dimensions change ev…
lbaldy May 24, 2022
b0c3bc7
update code structure and add comments
lbaldy Jun 6, 2022
e21080d
improve comments
lbaldy Jun 7, 2022
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simplify comments
lbaldy Jun 7, 2022
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update comments
lbaldy Jun 7, 2022
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shorten the condition, rename the variable to give it more meaningful…
lbaldy Jun 7, 2022
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61 changes: 40 additions & 21 deletions React/CoreModules/RCTDeviceInfo.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ @interface RCTDeviceInfo () <NativeDeviceInfoSpec, RCTInitializing>
@implementation RCTDeviceInfo {
UIInterfaceOrientation _currentInterfaceOrientation;
NSDictionary *_currentInterfaceDimensions;
BOOL _isFullscreen;
}

@synthesize bridge = _bridge;
Expand Down Expand Up @@ -60,7 +61,7 @@ - (void)initialize
_currentInterfaceDimensions = RCTExportedDimensions(_moduleRegistry, _bridge);

[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(interfaceFrameDidChange)
selector:@selector(interfaceOrientationDidChange)
name:UIApplicationDidBecomeActiveNotification
object:nil];

Expand Down Expand Up @@ -174,21 +175,35 @@ - (void)interfaceOrientationDidChange
- (void)_interfaceOrientationDidChange
{
UIInterfaceOrientation nextOrientation = [RCTSharedApplication() statusBarOrientation];
UIApplicationState appState = [RCTSharedApplication() applicationState];
BOOL isRunningInFullScreen = CGRectEqualToRect([UIApplication sharedApplication].delegate.window.frame, [UIApplication sharedApplication].delegate.window.screen.bounds);


BOOL isActive = appState == UIApplicationStateActive;
// We are catching here two situations for multitasking view:
// a) The app is in Split View and the container gets resized -> !isRunningInFullScreen
// b) The app changes to/from fullscreen example: App runs in slide over mode and goes into fullscreen-> isRunningInFullScreen != _isFullscreen
// The above two cases a || b can be shortened to !isRunningInFullScreen || !_isFullscreen;
BOOL isResizingOrChangingToFullscreen = !isRunningInFullScreen || !_isFullscreen;
BOOL isOrientationChanging = (UIInterfaceOrientationIsPortrait(_currentInterfaceOrientation) &&
!UIInterfaceOrientationIsPortrait(nextOrientation)) || (UIInterfaceOrientationIsLandscape(_currentInterfaceOrientation) &&
!UIInterfaceOrientationIsLandscape(nextOrientation));

// Update when we go from portrait to landscape, or landscape to portrait
if ((UIInterfaceOrientationIsPortrait(_currentInterfaceOrientation) &&
!UIInterfaceOrientationIsPortrait(nextOrientation)) ||
(UIInterfaceOrientationIsLandscape(_currentInterfaceOrientation) &&
!UIInterfaceOrientationIsLandscape(nextOrientation))) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
[[_moduleRegistry moduleForName:"EventDispatcher"]
sendDeviceEventWithName:@"didUpdateDimensions"
body:RCTExportedDimensions(_moduleRegistry, _bridge)];
#pragma clang diagnostic pop
// Also update when the fullscreen state changes (multitasking) and only when the app is in active state.
if ((isOrientationChanging || isResizingOrChangingToFullscreen) && isActive) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
[[_moduleRegistry moduleForName:"EventDispatcher"] sendDeviceEventWithName:@"didUpdateDimensions"
body:RCTExportedDimensions(_moduleRegistry, _bridge)];
// We only want to track the current _currentInterfaceOrientation and _isFullscreen only
// when it happens and only when it is published.
_currentInterfaceOrientation = nextOrientation;
_isFullscreen = isRunningInFullScreen;
#pragma clang diagnostic pop
}

_currentInterfaceOrientation = nextOrientation;

}

- (void)interfaceFrameDidChange
Expand All @@ -202,16 +217,20 @@ - (void)interfaceFrameDidChange
- (void)_interfaceFrameDidChange
{
NSDictionary *nextInterfaceDimensions = RCTExportedDimensions(_moduleRegistry, _bridge);

if (!([nextInterfaceDimensions isEqual:_currentInterfaceDimensions])) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
[[_moduleRegistry moduleForName:"EventDispatcher"] sendDeviceEventWithName:@"didUpdateDimensions"
body:nextInterfaceDimensions];
#pragma clang diagnostic pop
UIApplicationState appState = [RCTSharedApplication() applicationState];

BOOL isActive = appState == UIApplicationStateActive;
// update and publish the even only when the app is in active state
if (!([nextInterfaceDimensions isEqual:_currentInterfaceDimensions]) && isActive) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
[[_moduleRegistry moduleForName:"EventDispatcher"] sendDeviceEventWithName:@"didUpdateDimensions"
body:nextInterfaceDimensions];
// We only want to track the current _currentInterfaceOrientation only
// when it happens and only when it is published.
_currentInterfaceDimensions = nextInterfaceDimensions;
#pragma clang diagnostic pop
}

_currentInterfaceDimensions = nextInterfaceDimensions;
Comment on lines -213 to -214
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@parasharrajat parasharrajat Jun 6, 2022 •
edited
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Why are we moving these inside the if blocks?

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I added a comment in code, but that's moved inside so that we make sure that the state between JS and Obj-C is synced. Meaning we only update the 'Native' state when it's published to JS.

}

- (std::shared_ptr<TurboModule>)getTurboModule:(const ObjCTurboModule::InitParams &)params
Expand Down