react-native/React/Base/RCTDevMenu.m

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/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTDevMenu.h"
#import "RCTRedBox.h"
#import "RCTRootView.h"
@interface RCTDevMenu () <UIActionSheetDelegate> {
BOOL _liveReload;
}
@property (nonatomic, weak) RCTRootView *view;
@end
@implementation RCTDevMenu
- (instancetype)initWithRootView:(RCTRootView *)rootView
{
if (self = [super init]) {
self.view = rootView;
}
return self;
}
- (void)show
{
NSString *debugTitle = self.view.executorClass == nil ? @"Enable Debugging" : @"Disable Debugging";
NSString *liveReloadTitle = _liveReload ? @"Disable Live Reload" : @"Enable Live Reload";
UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"React Native: Development"
delegate:self
cancelButtonTitle:@"Cancel"
destructiveButtonTitle:nil
otherButtonTitles:@"Reload", debugTitle, liveReloadTitle, nil];
actionSheet.actionSheetStyle = UIBarStyleBlack;
[actionSheet showInView:self.view];
}
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (buttonIndex == 0) {
[self.view reload];
} else if (buttonIndex == 1) {
self.view.executorClass = self.view.executorClass == nil ? NSClassFromString(@"RCTWebSocketExecutor") : nil;
[self.view reload];
} else if (buttonIndex == 2) {
_liveReload = !_liveReload;
[self _pollAndReload];
}
}
- (void)_pollAndReload
{
if (_liveReload) {
NSURL *url = [self.view scriptURL];
NSURL *longPollURL = [[NSURL alloc] initWithString:@"/onchange" relativeToURL:url];
[self performSelectorInBackground:@selector(_checkForUpdates:) withObject:longPollURL];
}
}
- (void)_checkForUpdates:(NSURL *)URL
{
NSMutableURLRequest *longPollRequest = [NSMutableURLRequest requestWithURL:URL];
longPollRequest.timeoutInterval = 30;
NSHTTPURLResponse *response;
[NSURLConnection sendSynchronousRequest:longPollRequest returningResponse:&response error:nil];
dispatch_async(dispatch_get_main_queue(), ^{
if (_liveReload && response.statusCode == 205) {
[[RCTRedBox sharedInstance] dismiss];
[self.view reload];
}
[self _pollAndReload];
});
}
@end