2014 snapchat source code
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//
// SCCaptureImageState.m
// Snapchat
//
// Created by Lin Jia on 1/8/18.
//
#import "SCCaptureImageState.h"
#import "SCCaptureImageStateTransitionPayload.h"
#import "SCManagedCapturerV1_Private.h"
#import "SCStateTransitionPayload.h"
#import <SCFoundation/SCAssertWrapper.h>
#import <SCFoundation/SCQueuePerformer.h>
@interface SCCaptureImageState () {
__weak id<SCCaptureStateDelegate> _delegate;
SCQueuePerformer *_performer;
}
@end
@implementation SCCaptureImageState
- (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;
}
- (void)didBecomeCurrentState:(SCStateTransitionPayload *)payload
resource:(SCCaptureResource *)resource
context:(NSString *)context
{
SCAssertPerformer(_performer);
SCAssert(payload.toState == [self stateId], @"");
if (![payload isKindOfClass:[SCCaptureImageStateTransitionPayload class]]) {
SCAssertFail(@"wrong payload pass in");
[_delegate currentState:self requestToTransferToNewState:payload.fromState payload:nil context:context];
return;
}
SCCaptureImageStateTransitionPayload *captureImagePayload = (SCCaptureImageStateTransitionPayload *)payload;
[SCCaptureWorker
captureStillImageWithCaptureResource:resource
aspectRatio:captureImagePayload.aspectRatio
captureSessionID:captureImagePayload.captureSessionID
shouldCaptureFromVideo:[SCCaptureWorker shouldCaptureImageFromVideoWithResource:resource]
completionHandler:captureImagePayload.block
context:context];
[_delegate currentState:self requestToTransferToNewState:SCCaptureRunningStateId payload:nil context:context];
}
- (SCCaptureStateMachineStateId)stateId
{
return SCCaptureImageStateId;
}
@end