/** * Copyright (c) 2015-present, Facebook, Inc. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. */ #import "RCTWebViewManager.h" #import "RCTBridge.h" #import "RCTUIManager.h" #import "RCTWebView.h" #import "UIView+React.h" @interface RCTWebViewManager () @end @implementation RCTWebViewManager { NSConditionLock *_shouldStartLoadLock; BOOL _shouldStartLoad; } RCT_EXPORT_MODULE() - (UIView *)view { RCTWebView *webView = [RCTWebView new]; webView.delegate = self; return webView; } RCT_EXPORT_VIEW_PROPERTY(source, NSDictionary) RCT_REMAP_VIEW_PROPERTY(bounces, _webView.scrollView.bounces, BOOL) RCT_REMAP_VIEW_PROPERTY(scrollEnabled, _webView.scrollView.scrollEnabled, BOOL) RCT_REMAP_VIEW_PROPERTY(decelerationRate, _webView.scrollView.decelerationRate, CGFloat) RCT_EXPORT_VIEW_PROPERTY(scalesPageToFit, BOOL) RCT_EXPORT_VIEW_PROPERTY(messagingEnabled, BOOL) RCT_EXPORT_VIEW_PROPERTY(injectedJavaScript, NSString) RCT_EXPORT_VIEW_PROPERTY(contentInset, UIEdgeInsets) RCT_EXPORT_VIEW_PROPERTY(automaticallyAdjustContentInsets, BOOL) RCT_EXPORT_VIEW_PROPERTY(onLoadingStart, RCTDirectEventBlock) RCT_EXPORT_VIEW_PROPERTY(onLoadingFinish, RCTDirectEventBlock) RCT_EXPORT_VIEW_PROPERTY(onLoadingError, RCTDirectEventBlock) RCT_EXPORT_VIEW_PROPERTY(onMessage, RCTDirectEventBlock) RCT_EXPORT_VIEW_PROPERTY(onShouldStartLoadWithRequest, RCTDirectEventBlock) RCT_REMAP_VIEW_PROPERTY(allowsInlineMediaPlayback, _webView.allowsInlineMediaPlayback, BOOL) RCT_REMAP_VIEW_PROPERTY(mediaPlaybackRequiresUserAction, _webView.mediaPlaybackRequiresUserAction, BOOL) RCT_REMAP_VIEW_PROPERTY(dataDetectorTypes, _webView.dataDetectorTypes, UIDataDetectorTypes) RCT_EXPORT_METHOD(goBack:(nonnull NSNumber *)reactTag) { [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary *viewRegistry) { RCTWebView *view = viewRegistry[reactTag]; if (![view isKindOfClass:[RCTWebView class]]) { RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view); } else { [view goBack]; } }]; } RCT_EXPORT_METHOD(goForward:(nonnull NSNumber *)reactTag) { [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary *viewRegistry) { id view = viewRegistry[reactTag]; if (![view isKindOfClass:[RCTWebView class]]) { RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view); } else { [view goForward]; } }]; } RCT_EXPORT_METHOD(reload:(nonnull NSNumber *)reactTag) { [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary *viewRegistry) { RCTWebView *view = viewRegistry[reactTag]; if (![view isKindOfClass:[RCTWebView class]]) { RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view); } else { [view reload]; } }]; } RCT_EXPORT_METHOD(stopLoading:(nonnull NSNumber *)reactTag) { [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary *viewRegistry) { RCTWebView *view = viewRegistry[reactTag]; if (![view isKindOfClass:[RCTWebView class]]) { RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view); } else { [view stopLoading]; } }]; } RCT_EXPORT_METHOD(postMessage:(nonnull NSNumber *)reactTag message:(NSString *)message) { [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary *viewRegistry) { RCTWebView *view = viewRegistry[reactTag]; if (![view isKindOfClass:[RCTWebView class]]) { RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view); } else { [view postMessage:message]; } }]; } RCT_EXPORT_METHOD(injectJavaScript:(nonnull NSNumber *)reactTag script:(NSString *)script) { [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary *viewRegistry) { RCTWebView *view = viewRegistry[reactTag]; if (![view isKindOfClass:[RCTWebView class]]) { RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view); } else { [view injectJavaScript:script]; } }]; } #pragma mark - Exported synchronous methods - (BOOL)webView:(__unused RCTWebView *)webView shouldStartLoadForRequest:(NSMutableDictionary *)request withCallback:(RCTDirectEventBlock)callback { _shouldStartLoadLock = [[NSConditionLock alloc] initWithCondition:arc4random()]; _shouldStartLoad = YES; request[@"lockIdentifier"] = @(_shouldStartLoadLock.condition); callback(request); // Block the main thread for a maximum of 250ms until the JS thread returns if ([_shouldStartLoadLock lockWhenCondition:0 beforeDate:[NSDate dateWithTimeIntervalSinceNow:.25]]) { BOOL returnValue = _shouldStartLoad; [_shouldStartLoadLock unlock]; _shouldStartLoadLock = nil; return returnValue; } else { RCTLogWarn(@"Did not receive response to shouldStartLoad in time, defaulting to YES"); return YES; } } RCT_EXPORT_METHOD(startLoadWithResult:(BOOL)result lockIdentifier:(NSInteger)lockIdentifier) { if ([_shouldStartLoadLock tryLockWhenCondition:lockIdentifier]) { _shouldStartLoad = result; [_shouldStartLoadLock unlockWithCondition:0]; } else { RCTLogWarn(@"startLoadWithResult invoked with invalid lockIdentifier: " "got %lld, expected %lld", (long long)lockIdentifier, (long long)_shouldStartLoadLock.condition); } } @end