mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Ramanpreet Nara
7a6dd9807c
Summary: @public This diff implements message passing between the `WKWebView` and React Native. As with `<WebView/>`, we can only send/receive strings. **Usage:** 1. Set `messagingEnabled` to `true`. 1. To send data from the web view to React Native, call `postMessage(data)` within the web view. This forces React Native to execute the `onMessage` prop on the `WKWebView` component. `onMessage` will be called with an event `e`, where `e.nativeEvent.data` will be the data you passed into `postMessage`. 1. To send data from React Native to the web view, call `UIManager.dispatchViewManagerCommand` to dispatch the `UIManager.RCTWKWebView.Commands.postMessage` command. Look at [[ https://fburl.com/u1wusf2f | this part of the existing `<WebView/>` ]] component for more details. After you make the call, React Native will dispatch a `'message'` event to the `document` object within the webview. You can listen to the event by doing `document.addEventListener('message', callback)`. Let the event dispatched be `e`. Then, `e.data` is the data you sent over from React Native. [[ P58627181 | This Playground.js ]] illustrates the usage. Reviewed By: shergin Differential Revision: D6304850 fbshipit-source-id: 29075ef753296e9fb5a9cddeb1ad0f4ff7e28650
40 lines
1.1 KiB
Objective-C
40 lines
1.1 KiB
Objective-C
#import "RCTWKWebViewManager.h"
|
|
|
|
#import "RCTUIManager.h"
|
|
#import "RCTWKWebView.h"
|
|
|
|
@implementation RCTWKWebViewManager
|
|
|
|
RCT_EXPORT_MODULE()
|
|
|
|
- (UIView *)view
|
|
{
|
|
return [RCTWKWebView new];
|
|
}
|
|
|
|
RCT_EXPORT_VIEW_PROPERTY(source, NSDictionary)
|
|
RCT_EXPORT_VIEW_PROPERTY(onLoadingStart, RCTDirectEventBlock)
|
|
RCT_EXPORT_VIEW_PROPERTY(onLoadingFinish, RCTDirectEventBlock)
|
|
RCT_EXPORT_VIEW_PROPERTY(onLoadingError, RCTDirectEventBlock)
|
|
RCT_EXPORT_VIEW_PROPERTY(injectedJavaScript, NSString)
|
|
|
|
/**
|
|
* Expose methods to enable messaging the webview.
|
|
*/
|
|
RCT_EXPORT_VIEW_PROPERTY(messagingEnabled, BOOL)
|
|
RCT_EXPORT_VIEW_PROPERTY(onMessage, RCTDirectEventBlock)
|
|
|
|
RCT_EXPORT_METHOD(postMessage:(nonnull NSNumber *)reactTag message:(NSString *)message)
|
|
{
|
|
[self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, RCTWKWebView *> *viewRegistry) {
|
|
RCTWKWebView *view = viewRegistry[reactTag];
|
|
if (![view isKindOfClass:[RCTWKWebView class]]) {
|
|
RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view);
|
|
} else {
|
|
[view postMessage:message];
|
|
}
|
|
}];
|
|
}
|
|
|
|
@end
|