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Add `RCTJavaScriptWillStartExecutingNotification` 

Summary:
`RCTJavaScriptWillStartLoadingNotification` is being posted when starting the bridge, not when starting to execute JS code.

Here, we add `RCTJavaScriptWillStartExecutingNotification`, and in post it before executing JS with `RCTCxxBridge`.

Reviewed By: fromcelticpark

Differential Revision: D7153659

fbshipit-source-id: 902075308d54a47bef43b6f57edf2e624f621ceb
This commit is contained in:
David Aurelio 2018-03-06 11:01:34 -08:00 committed by Facebook Github Bot
parent b7bb2e5745
commit 48c339ddc7
3 changed files with 11 additions and 1 deletions
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8
React/Base/RCTBridge.h
View File

@ -19,10 +19,16 @@
@class RCTPerformanceLogger;
/**
* This notification fires when the bridge starts loading the JS bundle.
* This notification fires when the bridge initializes.
*/
RCT_EXTERN NSString *const RCTJavaScriptWillStartLoadingNotification;
/**
* This notification fires when the bridge starts executing the JS bundle.
*/
RCT_EXTERN NSString *const RCTJavaScriptWillStartExecutingNotification;
/**
* This notification fires when the bridge has finished loading the JS bundle.
*/

1
React/Base/RCTBridge.m
View File

@ -23,6 +23,7 @@
#import "RCTUtils.h"
NSString *const RCTJavaScriptWillStartLoadingNotification = @"RCTJavaScriptWillStartLoadingNotification";
NSString *const RCTJavaScriptWillStartExecutingNotification = @"RCTJavaScriptWillStartExecutingNotification";
NSString *const RCTJavaScriptDidLoadNotification = @"RCTJavaScriptDidLoadNotification";
NSString *const RCTJavaScriptDidFailToLoadNotification = @"RCTJavaScriptDidFailToLoadNotification";
NSString *const RCTDidInitializeModuleNotification = @"RCTDidInitializeModuleNotification";

3
React/CxxBridge/RCTCxxBridge.mm
View File

@ -1162,6 +1162,9 @@ RCT_NOT_IMPLEMENTED(- (instancetype)initWithBundleURL:(__unused NSURL *)bundleUR
{
[self _tryAndHandleError:^{
NSString *sourceUrlStr = deriveSourceURL(url);
[[NSNotificationCenter defaultCenter]
postNotificationName:RCTJavaScriptWillStartExecutingNotification
object:self->_parentBridge userInfo:@{@"bridge": self}];
if (isRAMBundle(script)) {
[self->_performanceLogger markStartForTag:RCTPLRAMBundleLoad];
auto ramBundle = std::make_unique<JSIndexedRAMBundle>(sourceUrlStr.UTF8String);