78 lines
2.6 KiB
Objective-C
78 lines
2.6 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <objc/runtime.h>
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#import <JavaScriptCore/JavaScriptCore.h>
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#import "RCTInvalidating.h"
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typedef void (^RCTJavaScriptCompleteBlock)(NSError *error);
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typedef void (^RCTJavaScriptCallback)(id json, NSError *error);
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/**
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* Abstracts away a JavaScript execution context - we may be running code in a
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* web view (for debugging purposes), or may be running code in a `JSContext`.
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*/
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@protocol RCTJavaScriptExecutor <RCTInvalidating>
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/**
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* Executes given method with arguments on JS thread and calls the given callback
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* with JSValue and JSContext as a result of the JS module call.
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*/
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- (void)executeJSCall:(NSString *)name
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method:(NSString *)method
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arguments:(NSArray *)arguments
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context:(NSNumber *)executorID
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callback:(RCTJavaScriptCallback)onComplete;
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/**
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* Runs an application script, and notifies of the script load being complete via `onComplete`.
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*/
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- (void)executeApplicationScript:(NSString *)script
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sourceURL:(NSURL *)url
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onComplete:(RCTJavaScriptCompleteBlock)onComplete;
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- (void)injectJSONText:(NSString *)script
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asGlobalObjectNamed:(NSString *)objectName
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callback:(RCTJavaScriptCompleteBlock)onComplete;
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/**
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* Enqueue a block to run in the executors JS thread. Fallback to `dispatch_async`
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* on the main queue if the executor doesn't own a thread.
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*/
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- (void)executeBlockOnJavaScriptQueue:(dispatch_block_t)block;
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@optional
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/**
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* Special case for Timers + ContextExecutor - instead of the default
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* if jsthread then call else dispatch call on jsthread
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* ensure the call is made async on the jsthread
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*/
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- (void)executeAsyncBlockOnJavaScriptQueue:(dispatch_block_t)block;
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@end
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static const char *RCTJavaScriptExecutorID = "RCTJavaScriptExecutorID";
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__used static id<RCTJavaScriptExecutor> RCTCreateExecutor(Class executorClass)
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{
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static NSUInteger executorID = 0;
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id<RCTJavaScriptExecutor> executor = [[executorClass alloc] init];
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if (executor) {
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objc_setAssociatedObject(executor, RCTJavaScriptExecutorID, @(++executorID), OBJC_ASSOCIATION_RETAIN);
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}
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return executor;
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}
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__used static NSNumber *RCTGetExecutorID(id<RCTJavaScriptExecutor> executor)
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{
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return executor ? objc_getAssociatedObject(executor, RCTJavaScriptExecutorID) : @0;
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}
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