2014 snapchat source code
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//
// SCCaptureImageWhileRecordingState.m
// Snapchat
//
// Created by Sun Lei on 22/02/2018.
//
#import "SCCaptureImageWhileRecordingState.h"
#import "SCCaptureImageWhileRecordingStateTransitionPayload.h"
#import "SCManagedCapturerV1_Private.h"
#import <SCFoundation/SCAssertWrapper.h>
#import <SCFoundation/SCQueuePerformer.h>
@interface SCCaptureImageWhileRecordingState () {
__weak id<SCCaptureStateDelegate> _delegate;
SCQueuePerformer *_performer;
}
@end
@implementation SCCaptureImageWhileRecordingState
- (instancetype)initWithPerformer:(SCQueuePerformer *)performer
bookKeeper:(SCCaptureStateMachineBookKeeper *)bookKeeper
delegate:(id<SCCaptureStateDelegate>)delegate
{
self = [super initWithPerformer:performer bookKeeper:bookKeeper delegate:delegate];
if (self) {
_delegate = delegate;
_performer = performer;
}
return self;
}
- (SCCaptureStateMachineStateId)stateId
{
return SCCaptureImageWhileRecordingStateId;
}
- (void)didBecomeCurrentState:(SCStateTransitionPayload *)payload
resource:(SCCaptureResource *)resource
context:(NSString *)context
{
SCAssertPerformer(_performer);
SCAssert(payload.fromState == SCCaptureRecordingStateId, @"");
SCAssert(payload.toState == [self stateId], @"");
SCAssert([payload isKindOfClass:[SCCaptureImageWhileRecordingStateTransitionPayload class]], @"");
;
SCCaptureImageWhileRecordingStateTransitionPayload *captureImagePayload =
(SCCaptureImageWhileRecordingStateTransitionPayload *)payload;
@weakify(self);
sc_managed_capturer_capture_still_image_completion_handler_t block =
^(UIImage *fullScreenImage, NSDictionary *metadata, NSError *error, SCManagedCapturerState *state) {
captureImagePayload.block(fullScreenImage, metadata, error, state);
[_performer perform:^{
@strongify(self);
[self _cancelRecordingWithContext:context resource:resource];
}];
};
[SCCaptureWorker
captureStillImageWithCaptureResource:resource
aspectRatio:captureImagePayload.aspectRatio
captureSessionID:captureImagePayload.captureSessionID
shouldCaptureFromVideo:[SCCaptureWorker shouldCaptureImageFromVideoWithResource:resource]
completionHandler:block
context:context];
[_delegate currentState:self requestToTransferToNewState:SCCaptureRunningStateId payload:nil context:context];
}
- (void)_cancelRecordingWithContext:(NSString *)context resource:(SCCaptureResource *)resource
{
SCTraceODPCompatibleStart(2);
SCAssertPerformer(_performer);
[SCCaptureWorker cancelRecordingWithCaptureResource:resource];
NSString *apiName =
[NSString sc_stringWithFormat:@"%@/%@", NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
[self.bookKeeper logAPICalled:apiName context:context];
}
@end