realm-js/ReactNative/RealmReactModule.m

75 lines
2.3 KiB
Objective-C

////////////////////////////////////////////////////////////////////////////
//
// Copyright 2015 Realm Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////
#import <objc/runtime.h>
#import "RealmReactModule.h"
#import "Base/RCTLog.h"
#import "Base/RCTBridge.h"
@import RealmJS;
@import JavaScriptCore;
@interface RCTBridge (executor)
@property (weak) id<RCTJavaScriptExecutor> javaScriptExecutor;
@end
@interface RCTJavaScriptContext : NSObject <RCTInvalidating>
@property (nonatomic, assign, readonly) JSGlobalContextRef ctx;
- (void)executeBlockOnJavaScriptQueue:(dispatch_block_t)block;
- (instancetype)initWithJSContext:(JSGlobalContextRef)context;
@end
@implementation Realm
RCT_EXPORT_MODULE()
@synthesize bridge = _bridge;
-(void)setBridge:(RCTBridge *)bridge {
_bridge = bridge;
Ivar executorIvar = class_getInstanceVariable([bridge class], "_javaScriptExecutor");
id contextExecutor = object_getIvar(bridge, executorIvar);
Ivar contextIvar = class_getInstanceVariable([contextExecutor class], "_context");
// The executor could be a RCTWebSocketExecutor, in which case it won't have a JS context.
if (!contextIvar) {
return;
}
[contextExecutor executeBlockOnJavaScriptQueue:^{
RCTJavaScriptContext *rctJSContext = object_getIvar(contextExecutor, contextIvar);
JSGlobalContextRef ctx;
if (rctJSContext) {
ctx = rctJSContext.ctx;
}
else {
ctx = JSGlobalContextCreate(NULL);
object_setIvar(contextExecutor, contextIvar, [[RCTJavaScriptContext alloc] initWithJSContext:ctx]);
}
[RealmJS initializeContext:ctx];
RCTLogInfo(@"Realm initialized");
}];
}
@end