react-native-webview/apple/RNCWebView.m

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/**
* 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 "RNCWebView.h"
#import <React/RCTConvert.h>
#import <React/RCTAutoInsetsProtocol.h>
#import "RNCWKProcessPoolManager.h"
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#if !TARGET_OS_OSX
#import <UIKit/UIKit.h>
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#else
#import <React/RCTUIKit.h>
#endif // !TARGET_OS_OSX
#import "objc/runtime.h"
static NSTimer *keyboardTimer;
static NSString *const HistoryShimName = @"ReactNativeHistoryShim";
static NSString *const MessageHandlerName = @"ReactNativeWebView";
static NSURLCredential* clientAuthenticationCredential;
static NSDictionary* customCertificatesForHost;
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#if !TARGET_OS_OSX
// runtime trick to remove WKWebView keyboard default toolbar
// see: http://stackoverflow.com/questions/19033292/ios-7-uiwebview-keyboard-issue/19042279#19042279
@interface _SwizzleHelperWK : UIView
@property (nonatomic, copy) WKWebView *webView;
@end
@implementation _SwizzleHelperWK
-(id)inputAccessoryView
{
if (_webView == nil) {
return nil;
}
if ([_webView respondsToSelector:@selector(inputAssistantItem)]) {
UITextInputAssistantItem *inputAssistantItem = [_webView inputAssistantItem];
inputAssistantItem.leadingBarButtonGroups = @[];
inputAssistantItem.trailingBarButtonGroups = @[];
}
return nil;
}
@end
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#endif // !TARGET_OS_OSX
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#if TARGET_OS_OSX
@interface RNCWKWebView : WKWebView
@end
@implementation RNCWKWebView
- (void)scrollWheel:(NSEvent *)theEvent {
RNCWebView *rncWebView = (RNCWebView *)[self superview];
RCTAssert([rncWebView isKindOfClass:[rncWebView class]], @"superview must be an RNCWebView");
if (![rncWebView scrollEnabled]) {
[[self nextResponder] scrollWheel:theEvent];
return;
}
[super scrollWheel:theEvent];
}
@end
#endif // TARGET_OS_OSX
@interface RNCWebView () <WKUIDelegate, WKNavigationDelegate, WKScriptMessageHandler,
#if !TARGET_OS_OSX
UIScrollViewDelegate,
#endif // !TARGET_OS_OSX
RCTAutoInsetsProtocol>
@property (nonatomic, copy) RCTDirectEventBlock onFileDownload;
@property (nonatomic, copy) RCTDirectEventBlock onLoadingStart;
@property (nonatomic, copy) RCTDirectEventBlock onLoadingFinish;
@property (nonatomic, copy) RCTDirectEventBlock onLoadingError;
@property (nonatomic, copy) RCTDirectEventBlock onLoadingProgress;
@property (nonatomic, copy) RCTDirectEventBlock onShouldStartLoadWithRequest;
@property (nonatomic, copy) RCTDirectEventBlock onHttpError;
@property (nonatomic, copy) RCTDirectEventBlock onMessage;
@property (nonatomic, copy) RCTDirectEventBlock onScroll;
@property (nonatomic, copy) RCTDirectEventBlock onContentProcessDidTerminate;
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#if !TARGET_OS_OSX
@property (nonatomic, copy) WKWebView *webView;
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#else
@property (nonatomic, copy) RNCWKWebView *webView;
#endif // !TARGET_OS_OSX
@property (nonatomic, strong) WKUserScript *postMessageScript;
@property (nonatomic, strong) WKUserScript *atStartScript;
@property (nonatomic, strong) WKUserScript *atEndScript;
@end
@implementation RNCWebView
{
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#if !TARGET_OS_OSX
UIColor * _savedBackgroundColor;
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#else
RCTUIColor * _savedBackgroundColor;
#endif // !TARGET_OS_OSX
BOOL _savedHideKeyboardAccessoryView;
BOOL _savedKeyboardDisplayRequiresUserAction;
// Workaround for StatusBar appearance bug for iOS 12
// https://github.com/react-native-community/react-native-webview/issues/62
BOOL _isFullScreenVideoOpen;
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#if !TARGET_OS_OSX
UIStatusBarStyle _savedStatusBarStyle;
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#endif // !TARGET_OS_OSX
BOOL _savedStatusBarHidden;
#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
UIScrollViewContentInsetAdjustmentBehavior _savedContentInsetAdjustmentBehavior;
#endif
}
- (instancetype)initWithFrame:(CGRect)frame
{
if ((self = [super initWithFrame:frame])) {
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#if !TARGET_OS_OSX
super.backgroundColor = [UIColor clearColor];
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#else
super.backgroundColor = [RCTUIColor clearColor];
#endif // !TARGET_OS_OSX
_bounces = YES;
_scrollEnabled = YES;
_showsHorizontalScrollIndicator = YES;
_showsVerticalScrollIndicator = YES;
_directionalLockEnabled = YES;
_automaticallyAdjustContentInsets = YES;
_autoManageStatusBarEnabled = YES;
_contentInset = UIEdgeInsetsZero;
_savedKeyboardDisplayRequiresUserAction = YES;
#if !TARGET_OS_OSX
_savedStatusBarStyle = RCTSharedApplication().statusBarStyle;
_savedStatusBarHidden = RCTSharedApplication().statusBarHidden;
#endif // !TARGET_OS_OSX
_injectedJavaScript = nil;
_injectedJavaScriptForMainFrameOnly = YES;
_injectedJavaScriptBeforeContentLoaded = nil;
_injectedJavaScriptBeforeContentLoadedForMainFrameOnly = YES;
#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
_savedContentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
#endif
}
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#if !TARGET_OS_OSX
[[NSNotificationCenter defaultCenter]addObserver:self
selector:@selector(appDidBecomeActive)
name:UIApplicationDidBecomeActiveNotification
object:nil];
[[NSNotificationCenter defaultCenter]addObserver:self
selector:@selector(appWillResignActive)
name:UIApplicationWillResignActiveNotification
object:nil];
if (@available(iOS 12.0, *)) {
// Workaround for a keyboard dismissal bug present in iOS 12
// https://openradar.appspot.com/radar?id=5018321736957952
[[NSNotificationCenter defaultCenter]
addObserver:self
selector:@selector(keyboardWillHide)
name:UIKeyboardWillHideNotification object:nil];
[[NSNotificationCenter defaultCenter]
addObserver:self
selector:@selector(keyboardWillShow)
name:UIKeyboardWillShowNotification object:nil];
// Workaround for StatusBar appearance bug for iOS 12
// https://github.com/react-native-community/react-native-webview/issues/62
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(showFullScreenVideoStatusBars)
name:UIWindowDidBecomeVisibleNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(hideFullScreenVideoStatusBars)
name:UIWindowDidBecomeHiddenNotification
object:nil];
}
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#endif // !TARGET_OS_OSX
return self;
}
fix(WKWebView): resolved crash with WebKit on iOS 9.x. (#342) This PR fixes two crashes when enableWebKit is true (which was the default) on iOS 9.x. The first one when the WebView component was mounted (fixes issue #150) and the second one, when the component was unmounted (fixes issue #213). The first problem happen when the RNCWKWebView.m was loaded: The programming guide for WebKit (version 2006) ([pdf](http://mirror.informatimago.com/next/developer.apple.com/documentation/Cocoa/Conceptual/DisplayWebContent/WebKit_DisplayWebContent.pdf)) from Apple said, that it is (was) required to check if the 'new' WebKit Framework was available. This was required when the WebKit framework was only available on Mac OS X (10.2) when the Safari was installed. 😆 Because WebKit is (currently..) a fix part of iOS we didn't need this check this anymore to determinate if WebKit is available. I also see no other reference that this is required in iOS so I just remove this code. Without this code the WebView works also on iOS 9.x. The second issue happen when the WKWebView was removed from the native view hierarchy. Its required (only on iOS 9) to remove the UIScrollView delegate before cleaning up the webview. Its possible to try this PR with: ``` npm install --save "react-native-webview@jerolimov/react-native-webview#fix-ios9-crash" # or yarn add "react-native-webview@jerolimov/react-native-webview#fix-ios9-crash" ``` If you use CocoaPods, you should also update your Pods with ``` cd ios && pod update && cd .. ```
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- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
/**
* See https://stackoverflow.com/questions/25713069/why-is-wkwebview-not-opening-links-with-target-blank/25853806#25853806 for details.
*/
- (WKWebView *)webView:(WKWebView *)webView createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration forNavigationAction:(WKNavigationAction *)navigationAction windowFeatures:(WKWindowFeatures *)windowFeatures
{
if (!navigationAction.targetFrame.isMainFrame) {
[webView loadRequest:navigationAction.request];
}
return nil;
}
- (WKWebViewConfiguration *)setUpWkWebViewConfig
{
WKWebViewConfiguration *wkWebViewConfig = [WKWebViewConfiguration new];
WKPreferences *prefs = [[WKPreferences alloc]init];
BOOL _prefsUsed = NO;
if (!_javaScriptEnabled) {
prefs.javaScriptEnabled = NO;
_prefsUsed = YES;
}
if (_allowFileAccessFromFileURLs) {
[prefs setValue:@TRUE forKey:@"allowFileAccessFromFileURLs"];
_prefsUsed = YES;
}
if (_javaScriptCanOpenWindowsAutomatically) {
[prefs setValue:@TRUE forKey:@"javaScriptCanOpenWindowsAutomatically"];
_prefsUsed = YES;
}
if (_prefsUsed) {
wkWebViewConfig.preferences = prefs;
}
if (_incognito) {
wkWebViewConfig.websiteDataStore = [WKWebsiteDataStore nonPersistentDataStore];
} else if (_cacheEnabled) {
wkWebViewConfig.websiteDataStore = [WKWebsiteDataStore defaultDataStore];
}
if(self.useSharedProcessPool) {
wkWebViewConfig.processPool = [[RNCWKProcessPoolManager sharedManager] sharedProcessPool];
}
wkWebViewConfig.userContentController = [WKUserContentController new];
#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 130000 /* iOS 13 */
if (@available(iOS 13.0, *)) {
WKWebpagePreferences *pagePrefs = [[WKWebpagePreferences alloc]init];
pagePrefs.preferredContentMode = _contentMode;
wkWebViewConfig.defaultWebpagePreferences = pagePrefs;
}
#endif
// Shim the HTML5 history API:
[wkWebViewConfig.userContentController addScriptMessageHandler:[[RNCWeakScriptMessageDelegate alloc] initWithDelegate:self]
name:HistoryShimName];
[self resetupScripts:wkWebViewConfig];
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#if !TARGET_OS_OSX
wkWebViewConfig.allowsInlineMediaPlayback = _allowsInlineMediaPlayback;
#if WEBKIT_IOS_10_APIS_AVAILABLE
wkWebViewConfig.mediaTypesRequiringUserActionForPlayback = _mediaPlaybackRequiresUserAction
? WKAudiovisualMediaTypeAll
: WKAudiovisualMediaTypeNone;
wkWebViewConfig.dataDetectorTypes = _dataDetectorTypes;
#else
wkWebViewConfig.mediaPlaybackRequiresUserAction = _mediaPlaybackRequiresUserAction;
#endif
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#endif // !TARGET_OS_OSX
if (_applicationNameForUserAgent) {
wkWebViewConfig.applicationNameForUserAgent = [NSString stringWithFormat:@"%@ %@", wkWebViewConfig.applicationNameForUserAgent, _applicationNameForUserAgent];
}
return wkWebViewConfig;
}
- (void)didMoveToWindow
{
if (self.window != nil && _webView == nil) {
WKWebViewConfiguration *wkWebViewConfig = [self setUpWkWebViewConfig];
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#if !TARGET_OS_OSX
_webView = [[WKWebView alloc] initWithFrame:self.bounds configuration: wkWebViewConfig];
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#else
_webView = [[RNCWKWebView alloc] initWithFrame:self.bounds configuration: wkWebViewConfig];
#endif // !TARGET_OS_OSX
[self setBackgroundColor: _savedBackgroundColor];
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#if !TARGET_OS_OSX
_webView.scrollView.delegate = self;
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#endif // !TARGET_OS_OSX
_webView.UIDelegate = self;
_webView.navigationDelegate = self;
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#if !TARGET_OS_OSX
if (_pullToRefreshEnabled) {
[self addPullToRefreshControl];
}
_webView.scrollView.scrollEnabled = _scrollEnabled;
_webView.scrollView.pagingEnabled = _pagingEnabled;
//For UIRefreshControl to work correctly, the bounces should always be true
_webView.scrollView.bounces = _pullToRefreshEnabled || _bounces;
_webView.scrollView.showsHorizontalScrollIndicator = _showsHorizontalScrollIndicator;
_webView.scrollView.showsVerticalScrollIndicator = _showsVerticalScrollIndicator;
_webView.scrollView.directionalLockEnabled = _directionalLockEnabled;
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#endif // !TARGET_OS_OSX
_webView.allowsLinkPreview = _allowsLinkPreview;
[_webView addObserver:self forKeyPath:@"estimatedProgress" options:NSKeyValueObservingOptionOld | NSKeyValueObservingOptionNew context:nil];
_webView.allowsBackForwardNavigationGestures = _allowsBackForwardNavigationGestures;
if (_userAgent) {
_webView.customUserAgent = _userAgent;
}
#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
if ([_webView.scrollView respondsToSelector:@selector(setContentInsetAdjustmentBehavior:)]) {
_webView.scrollView.contentInsetAdjustmentBehavior = _savedContentInsetAdjustmentBehavior;
}
#endif
[self addSubview:_webView];
[self setHideKeyboardAccessoryView: _savedHideKeyboardAccessoryView];
[self setKeyboardDisplayRequiresUserAction: _savedKeyboardDisplayRequiresUserAction];
[self visitSource];
}
}
// Update webview property when the component prop changes.
- (void)setAllowsBackForwardNavigationGestures:(BOOL)allowsBackForwardNavigationGestures {
_allowsBackForwardNavigationGestures = allowsBackForwardNavigationGestures;
_webView.allowsBackForwardNavigationGestures = _allowsBackForwardNavigationGestures;
}
- (void)removeFromSuperview
{
if (_webView) {
[_webView.configuration.userContentController removeScriptMessageHandlerForName:MessageHandlerName];
[_webView removeObserver:self forKeyPath:@"estimatedProgress"];
[_webView removeFromSuperview];
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#if !TARGET_OS_OSX
fix(WKWebView): resolved crash with WebKit on iOS 9.x. (#342) This PR fixes two crashes when enableWebKit is true (which was the default) on iOS 9.x. The first one when the WebView component was mounted (fixes issue #150) and the second one, when the component was unmounted (fixes issue #213). The first problem happen when the RNCWKWebView.m was loaded: The programming guide for WebKit (version 2006) ([pdf](http://mirror.informatimago.com/next/developer.apple.com/documentation/Cocoa/Conceptual/DisplayWebContent/WebKit_DisplayWebContent.pdf)) from Apple said, that it is (was) required to check if the 'new' WebKit Framework was available. This was required when the WebKit framework was only available on Mac OS X (10.2) when the Safari was installed. 😆 Because WebKit is (currently..) a fix part of iOS we didn't need this check this anymore to determinate if WebKit is available. I also see no other reference that this is required in iOS so I just remove this code. Without this code the WebView works also on iOS 9.x. The second issue happen when the WKWebView was removed from the native view hierarchy. Its required (only on iOS 9) to remove the UIScrollView delegate before cleaning up the webview. Its possible to try this PR with: ``` npm install --save "react-native-webview@jerolimov/react-native-webview#fix-ios9-crash" # or yarn add "react-native-webview@jerolimov/react-native-webview#fix-ios9-crash" ``` If you use CocoaPods, you should also update your Pods with ``` cd ios && pod update && cd .. ```
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_webView.scrollView.delegate = nil;
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#endif // !TARGET_OS_OSX
_webView = nil;
if (_onContentProcessDidTerminate) {
NSMutableDictionary<NSString *, id> *event = [self baseEvent];
_onContentProcessDidTerminate(event);
}
}
[super removeFromSuperview];
}
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#if !TARGET_OS_OSX
-(void)showFullScreenVideoStatusBars
{
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
if (!_autoManageStatusBarEnabled) {
return;
}
_isFullScreenVideoOpen = YES;
RCTUnsafeExecuteOnMainQueueSync(^{
[RCTSharedApplication() setStatusBarStyle:self->_savedStatusBarStyle animated:YES];
});
#pragma clang diagnostic pop
}
-(void)hideFullScreenVideoStatusBars
{
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
if (!_autoManageStatusBarEnabled) {
return;
}
_isFullScreenVideoOpen = NO;
RCTUnsafeExecuteOnMainQueueSync(^{
[RCTSharedApplication() setStatusBarHidden:self->_savedStatusBarHidden animated:YES];
[RCTSharedApplication() setStatusBarStyle:self->_savedStatusBarStyle animated:YES];
});
#pragma clang diagnostic pop
}
-(void)keyboardWillHide
{
keyboardTimer = [NSTimer scheduledTimerWithTimeInterval:0 target:self selector:@selector(keyboardDisplacementFix) userInfo:nil repeats:false];
[[NSRunLoop mainRunLoop] addTimer:keyboardTimer forMode:NSRunLoopCommonModes];
}
-(void)keyboardWillShow
{
if (keyboardTimer != nil) {
[keyboardTimer invalidate];
}
}
-(void)keyboardDisplacementFix
{
// Additional viewport checks to prevent unintentional scrolls
UIScrollView *scrollView = self.webView.scrollView;
double maxContentOffset = scrollView.contentSize.height - scrollView.frame.size.height;
if (maxContentOffset < 0) {
maxContentOffset = 0;
}
if (scrollView.contentOffset.y > maxContentOffset) {
// https://stackoverflow.com/a/9637807/824966
[UIView animateWithDuration:.25 animations:^{
scrollView.contentOffset = CGPointMake(0, maxContentOffset);
}];
}
}
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#endif // !TARGET_OS_OSX
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context{
if ([keyPath isEqual:@"estimatedProgress"] && object == self.webView) {
if(_onLoadingProgress){
NSMutableDictionary<NSString *, id> *event = [self baseEvent];
[event addEntriesFromDictionary:@{@"progress":[NSNumber numberWithDouble:self.webView.estimatedProgress]}];
_onLoadingProgress(event);
}
}else{
[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
}
}
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#if !TARGET_OS_OSX
- (void)setBackgroundColor:(UIColor *)backgroundColor
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#else
- (void)setBackgroundColor:(RCTUIColor *)backgroundColor
#endif // !TARGET_OS_OSX
{
_savedBackgroundColor = backgroundColor;
if (_webView == nil) {
return;
}
CGFloat alpha = CGColorGetAlpha(backgroundColor.CGColor);
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BOOL opaque = (alpha == 1.0);
#if !TARGET_OS_OSX
self.opaque = _webView.opaque = opaque;
_webView.scrollView.backgroundColor = backgroundColor;
_webView.backgroundColor = backgroundColor;
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#else
// https://stackoverflow.com/questions/40007753/macos-wkwebview-background-transparency
NSOperatingSystemVersion version = { 10, 12, 0 };
if ([[NSProcessInfo processInfo] isOperatingSystemAtLeastVersion:version]) {
[_webView setValue:@(opaque) forKey: @"drawsBackground"];
} else {
[_webView setValue:@(!opaque) forKey: @"drawsTransparentBackground"];
}
#endif // !TARGET_OS_OSX
}
#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
- (void)setContentInsetAdjustmentBehavior:(UIScrollViewContentInsetAdjustmentBehavior)behavior
{
_savedContentInsetAdjustmentBehavior = behavior;
if (_webView == nil) {
return;
}
if ([_webView.scrollView respondsToSelector:@selector(setContentInsetAdjustmentBehavior:)]) {
CGPoint contentOffset = _webView.scrollView.contentOffset;
_webView.scrollView.contentInsetAdjustmentBehavior = behavior;
_webView.scrollView.contentOffset = contentOffset;
}
}
#endif
/**
* This method is called whenever JavaScript running within the web view calls:
* - window.webkit.messageHandlers[MessageHandlerName].postMessage
*/
- (void)userContentController:(WKUserContentController *)userContentController
didReceiveScriptMessage:(WKScriptMessage *)message
{
if ([message.name isEqualToString:HistoryShimName]) {
if (_onLoadingFinish) {
NSMutableDictionary<NSString *, id> *event = [self baseEvent];
[event addEntriesFromDictionary: @{@"navigationType": message.body}];
_onLoadingFinish(event);
}
} else if ([message.name isEqualToString:MessageHandlerName]) {
if (_onMessage) {
NSMutableDictionary<NSString *, id> *event = [self baseEvent];
[event addEntriesFromDictionary: @{@"data": message.body}];
_onMessage(event);
}
}
}
- (void)setSource:(NSDictionary *)source
{
if (![_source isEqualToDictionary:source]) {
_source = [source copy];
if (_webView != nil) {
[self visitSource];
}
}
}
- (void)setAllowingReadAccessToURL:(NSString *)allowingReadAccessToURL
{
if (![_allowingReadAccessToURL isEqualToString:allowingReadAccessToURL]) {
_allowingReadAccessToURL = [allowingReadAccessToURL copy];
if (_webView != nil) {
[self visitSource];
}
}
}
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#if !TARGET_OS_OSX
- (void)setContentInset:(UIEdgeInsets)contentInset
{
_contentInset = contentInset;
[RCTView autoAdjustInsetsForView:self
withScrollView:_webView.scrollView
updateOffset:NO];
}
- (void)refreshContentInset
{
[RCTView autoAdjustInsetsForView:self
withScrollView:_webView.scrollView
updateOffset:YES];
}
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#endif // !TARGET_OS_OSX
- (void)visitSource
{
// Check for a static html source first
NSString *html = [RCTConvert NSString:_source[@"html"]];
if (html) {
NSURL *baseURL = [RCTConvert NSURL:_source[@"baseUrl"]];
if (!baseURL) {
baseURL = [NSURL URLWithString:@"about:blank"];
}
[_webView loadHTMLString:html baseURL:baseURL];
return;
}
NSURLRequest *request = [self requestForSource:_source];
// Because of the way React works, as pages redirect, we actually end up
// passing the redirect urls back here, so we ignore them if trying to load
// the same url. We'll expose a call to 'reload' to allow a user to load
// the existing page.
if ([request.URL isEqual:_webView.URL]) {
return;
}
if (!request.URL) {
// Clear the webview
[_webView loadHTMLString:@"" baseURL:nil];
return;
}
if (request.URL.host) {
[_webView loadRequest:request];
}
else {
NSURL* readAccessUrl = _allowingReadAccessToURL ? [RCTConvert NSURL:_allowingReadAccessToURL] : request.URL;
[_webView loadFileURL:request.URL allowingReadAccessToURL:readAccessUrl];
}
}
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#if !TARGET_OS_OSX
-(void)setKeyboardDisplayRequiresUserAction:(BOOL)keyboardDisplayRequiresUserAction
{
if (_webView == nil) {
_savedKeyboardDisplayRequiresUserAction = keyboardDisplayRequiresUserAction;
return;
}
if (_savedKeyboardDisplayRequiresUserAction == true) {
return;
}
UIView* subview;
for (UIView* view in _webView.scrollView.subviews) {
if([[view.class description] hasPrefix:@"WK"])
subview = view;
}
if(subview == nil) return;
Class class = subview.class;
NSOperatingSystemVersion iOS_11_3_0 = (NSOperatingSystemVersion){11, 3, 0};
NSOperatingSystemVersion iOS_12_2_0 = (NSOperatingSystemVersion){12, 2, 0};
NSOperatingSystemVersion iOS_13_0_0 = (NSOperatingSystemVersion){13, 0, 0};
Method method;
IMP override;
if ([[NSProcessInfo processInfo] isOperatingSystemAtLeastVersion: iOS_13_0_0]) {
// iOS 13.0.0 - Future
SEL selector = sel_getUid("_elementDidFocus:userIsInteracting:blurPreviousNode:activityStateChanges:userObject:");
method = class_getInstanceMethod(class, selector);
IMP original = method_getImplementation(method);
override = imp_implementationWithBlock(^void(id me, void* arg0, BOOL arg1, BOOL arg2, BOOL arg3, id arg4) {
((void (*)(id, SEL, void*, BOOL, BOOL, BOOL, id))original)(me, selector, arg0, TRUE, arg2, arg3, arg4);
});
}
else if ([[NSProcessInfo processInfo] isOperatingSystemAtLeastVersion: iOS_12_2_0]) {
// iOS 12.2.0 - iOS 13.0.0
SEL selector = sel_getUid("_elementDidFocus:userIsInteracting:blurPreviousNode:changingActivityState:userObject:");
method = class_getInstanceMethod(class, selector);
IMP original = method_getImplementation(method);
override = imp_implementationWithBlock(^void(id me, void* arg0, BOOL arg1, BOOL arg2, BOOL arg3, id arg4) {
((void (*)(id, SEL, void*, BOOL, BOOL, BOOL, id))original)(me, selector, arg0, TRUE, arg2, arg3, arg4);
});
}
else if ([[NSProcessInfo processInfo] isOperatingSystemAtLeastVersion: iOS_11_3_0]) {
// iOS 11.3.0 - 12.2.0
SEL selector = sel_getUid("_startAssistingNode:userIsInteracting:blurPreviousNode:changingActivityState:userObject:");
method = class_getInstanceMethod(class, selector);
IMP original = method_getImplementation(method);
override = imp_implementationWithBlock(^void(id me, void* arg0, BOOL arg1, BOOL arg2, BOOL arg3, id arg4) {
((void (*)(id, SEL, void*, BOOL, BOOL, BOOL, id))original)(me, selector, arg0, TRUE, arg2, arg3, arg4);
});
} else {
// iOS 9.0 - 11.3.0
SEL selector = sel_getUid("_startAssistingNode:userIsInteracting:blurPreviousNode:userObject:");
method = class_getInstanceMethod(class, selector);
IMP original = method_getImplementation(method);
override = imp_implementationWithBlock(^void(id me, void* arg0, BOOL arg1, BOOL arg2, id arg3) {
((void (*)(id, SEL, void*, BOOL, BOOL, id))original)(me, selector, arg0, TRUE, arg2, arg3);
});
}
method_setImplementation(method, override);
}
-(void)setHideKeyboardAccessoryView:(BOOL)hideKeyboardAccessoryView
{
if (_webView == nil) {
_savedHideKeyboardAccessoryView = hideKeyboardAccessoryView;
return;
}
if (_savedHideKeyboardAccessoryView == false) {
return;
}
UIView* subview;
for (UIView* view in _webView.scrollView.subviews) {
if([[view.class description] hasPrefix:@"WK"])
subview = view;
}
if(subview == nil) return;
NSString* name = [NSString stringWithFormat:@"%@_SwizzleHelperWK", subview.class.superclass];
Class newClass = NSClassFromString(name);
if(newClass == nil)
{
newClass = objc_allocateClassPair(subview.class, [name cStringUsingEncoding:NSASCIIStringEncoding], 0);
if(!newClass) return;
Method method = class_getInstanceMethod([_SwizzleHelperWK class], @selector(inputAccessoryView));
class_addMethod(newClass, @selector(inputAccessoryView), method_getImplementation(method), method_getTypeEncoding(method));
objc_registerClassPair(newClass);
}
object_setClass(subview, newClass);
}
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// UIScrollViewDelegate method
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
scrollView.decelerationRate = _decelerationRate;
}
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#endif // !TARGET_OS_OSX
- (void)setScrollEnabled:(BOOL)scrollEnabled
{
_scrollEnabled = scrollEnabled;
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#if !TARGET_OS_OSX
_webView.scrollView.scrollEnabled = scrollEnabled;
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#endif // !TARGET_OS_OSX
}
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#if !TARGET_OS_OSX
// UIScrollViewDelegate method
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
// Don't allow scrolling the scrollView.
if (!_scrollEnabled) {
scrollView.bounds = _webView.bounds;
}
else if (_onScroll != nil) {
NSDictionary *event = @{
@"contentOffset": @{
@"x": @(scrollView.contentOffset.x),
@"y": @(scrollView.contentOffset.y)
},
@"contentInset": @{
@"top": @(scrollView.contentInset.top),
@"left": @(scrollView.contentInset.left),
@"bottom": @(scrollView.contentInset.bottom),
@"right": @(scrollView.contentInset.right)
},
@"contentSize": @{
@"width": @(scrollView.contentSize.width),
@"height": @(scrollView.contentSize.height)
},
@"layoutMeasurement": @{
@"width": @(scrollView.frame.size.width),
@"height": @(scrollView.frame.size.height)
},
@"zoomScale": @(scrollView.zoomScale ?: 1),
};
_onScroll(event);
}
}
- (void)setDirectionalLockEnabled:(BOOL)directionalLockEnabled
{
_directionalLockEnabled = directionalLockEnabled;
_webView.scrollView.directionalLockEnabled = directionalLockEnabled;
}
- (void)setShowsHorizontalScrollIndicator:(BOOL)showsHorizontalScrollIndicator
{
_showsHorizontalScrollIndicator = showsHorizontalScrollIndicator;
_webView.scrollView.showsHorizontalScrollIndicator = showsHorizontalScrollIndicator;
}
- (void)setShowsVerticalScrollIndicator:(BOOL)showsVerticalScrollIndicator
{
_showsVerticalScrollIndicator = showsVerticalScrollIndicator;
_webView.scrollView.showsVerticalScrollIndicator = showsVerticalScrollIndicator;
}
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#endif // !TARGET_OS_OSX
- (void)postMessage:(NSString *)message
{
NSDictionary *eventInitDict = @{@"data": message};
NSString *source = [NSString
stringWithFormat:@"window.dispatchEvent(new MessageEvent('message', %@));",
RCTJSONStringify(eventInitDict, NULL)
];
[self injectJavaScript: source];
}
- (void)layoutSubviews
{
[super layoutSubviews];
// Ensure webview takes the position and dimensions of RNCWebView
_webView.frame = self.bounds;
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#if !TARGET_OS_OSX
_webView.scrollView.contentInset = _contentInset;
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#endif // !TARGET_OS_OSX
}
- (NSMutableDictionary<NSString *, id> *)baseEvent
{
NSDictionary *event = @{
@"url": _webView.URL.absoluteString ?: @"",
@"title": _webView.title ?: @"",
@"loading" : @(_webView.loading),
@"canGoBack": @(_webView.canGoBack),
@"canGoForward" : @(_webView.canGoForward)
};
return [[NSMutableDictionary alloc] initWithDictionary: event];
}
+ (void)setClientAuthenticationCredential:(nullable NSURLCredential*)credential {
clientAuthenticationCredential = credential;
}
+ (void)setCustomCertificatesForHost:(nullable NSDictionary*)certificates {
customCertificatesForHost = certificates;
}
- (void) webView:(WKWebView *)webView
didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential * _Nullable))completionHandler
{
NSString* host = nil;
if (webView.URL != nil) {
host = webView.URL.host;
}
if ([[challenge protectionSpace] authenticationMethod] == NSURLAuthenticationMethodClientCertificate) {
completionHandler(NSURLSessionAuthChallengeUseCredential, clientAuthenticationCredential);
return;
}
if ([[challenge protectionSpace] serverTrust] != nil && customCertificatesForHost != nil && host != nil) {
SecCertificateRef localCertificate = (__bridge SecCertificateRef)([customCertificatesForHost objectForKey:host]);
if (localCertificate != nil) {
NSData *localCertificateData = (NSData*) CFBridgingRelease(SecCertificateCopyData(localCertificate));
SecTrustRef trust = [[challenge protectionSpace] serverTrust];
long count = SecTrustGetCertificateCount(trust);
for (long i = 0; i < count; i++) {
SecCertificateRef serverCertificate = SecTrustGetCertificateAtIndex(trust, i);
if (serverCertificate == nil) { continue; }
NSData *serverCertificateData = (NSData *) CFBridgingRelease(SecCertificateCopyData(serverCertificate));
if ([serverCertificateData isEqualToData:localCertificateData]) {
NSURLCredential *useCredential = [NSURLCredential credentialForTrust:trust];
if (challenge.sender != nil) {
[challenge.sender useCredential:useCredential forAuthenticationChallenge:challenge];
}
completionHandler(NSURLSessionAuthChallengeUseCredential, useCredential);
return;
}
}
}
}
completionHandler(NSURLSessionAuthChallengePerformDefaultHandling, nil);
}
#pragma mark - WKNavigationDelegate methods
/**
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* alert
*/
- (void)webView:(WKWebView *)webView runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(void))completionHandler
{
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#if !TARGET_OS_OSX
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"" message:message preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
completionHandler();
}]];
[[self topViewController] presentViewController:alert animated:YES completion:NULL];
#else
NSAlert *alert = [[NSAlert alloc] init];
[alert setMessageText:message];
[alert beginSheetModalForWindow:[NSApp keyWindow] completionHandler:^(__unused NSModalResponse response){
completionHandler();
}];
#endif // !TARGET_OS_OSX
}
/**
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* confirm
*/
- (void)webView:(WKWebView *)webView runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(BOOL))completionHandler{
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#if !TARGET_OS_OSX
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"" message:message preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
completionHandler(YES);
}]];
[alert addAction:[UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
completionHandler(NO);
}]];
[[self topViewController] presentViewController:alert animated:YES completion:NULL];
#else
NSAlert *alert = [[NSAlert alloc] init];
[alert setMessageText:message];
[alert addButtonWithTitle:NSLocalizedString(@"OK", @"OK button")];
[alert addButtonWithTitle:NSLocalizedString(@"Cancel", @"Cancel button")];
void (^callbacksHandlers)(NSModalResponse response) = ^void(NSModalResponse response) {
completionHandler(response == NSAlertFirstButtonReturn);
};
[alert beginSheetModalForWindow:[NSApp keyWindow] completionHandler:callbacksHandlers];
#endif // !TARGET_OS_OSX
}
/**
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* prompt
*/
- (void)webView:(WKWebView *)webView runJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(NSString *)defaultText initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(NSString *))completionHandler{
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#if !TARGET_OS_OSX
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"" message:prompt preferredStyle:UIAlertControllerStyleAlert];
[alert addTextFieldWithConfigurationHandler:^(UITextField *textField) {
textField.text = defaultText;
}];
UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
completionHandler([[alert.textFields lastObject] text]);
}];
[alert addAction:okAction];
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
completionHandler(nil);
}];
[alert addAction:cancelAction];
alert.preferredAction = okAction;
[[self topViewController] presentViewController:alert animated:YES completion:NULL];
#else
NSAlert *alert = [[NSAlert alloc] init];
[alert setMessageText:prompt];
const NSRect RCTSingleTextFieldFrame = NSMakeRect(0.0, 0.0, 275.0, 22.0);
NSTextField *textField = [[NSTextField alloc] initWithFrame:RCTSingleTextFieldFrame];
textField.cell.scrollable = YES;
if (@available(macOS 10.11, *)) {
textField.maximumNumberOfLines = 1;
}
textField.stringValue = defaultText;
[alert setAccessoryView:textField];
[alert addButtonWithTitle:NSLocalizedString(@"OK", @"OK button")];
[alert addButtonWithTitle:NSLocalizedString(@"Cancel", @"Cancel button")];
[alert beginSheetModalForWindow:[NSApp keyWindow] completionHandler:^(NSModalResponse response) {
if (response == NSAlertFirstButtonReturn) {
completionHandler([textField stringValue]);
} else {
completionHandler(nil);
}
}];
#endif // !TARGET_OS_OSX
}
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#if !TARGET_OS_OSX
/**
* topViewController
*/
-(UIViewController *)topViewController{
return RCTPresentedViewController();
}
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#endif // !TARGET_OS_OSX
/**
* Decides whether to allow or cancel a navigation.
* @see https://fburl.com/42r9fxob
*/
- (void) webView:(WKWebView *)webView
decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction
decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler
{
static NSDictionary<NSNumber *, NSString *> *navigationTypes;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
navigationTypes = @{
@(WKNavigationTypeLinkActivated): @"click",
@(WKNavigationTypeFormSubmitted): @"formsubmit",
@(WKNavigationTypeBackForward): @"backforward",
@(WKNavigationTypeReload): @"reload",
@(WKNavigationTypeFormResubmitted): @"formresubmit",
@(WKNavigationTypeOther): @"other",
};
});
WKNavigationType navigationType = navigationAction.navigationType;
NSURLRequest *request = navigationAction.request;
BOOL isTopFrame = [request.URL isEqual:request.mainDocumentURL];
if (_onShouldStartLoadWithRequest) {
NSMutableDictionary<NSString *, id> *event = [self baseEvent];
[event addEntriesFromDictionary: @{
@"url": (request.URL).absoluteString,
@"mainDocumentURL": (request.mainDocumentURL).absoluteString,
@"navigationType": navigationTypes[@(navigationType)],
@"isTopFrame": @(isTopFrame)
}];
if (![self.delegate webView:self
shouldStartLoadForRequest:event
withCallback:_onShouldStartLoadWithRequest]) {
decisionHandler(WKNavigationActionPolicyCancel);
return;
}
}
if (_onLoadingStart) {
// We have this check to filter out iframe requests and whatnot
if (isTopFrame) {
NSMutableDictionary<NSString *, id> *event = [self baseEvent];
[event addEntriesFromDictionary: @{
@"url": (request.URL).absoluteString,
@"navigationType": navigationTypes[@(navigationType)]
}];
_onLoadingStart(event);
}
}
// Allow all navigation by default
decisionHandler(WKNavigationActionPolicyAllow);
}
/**
* Called when the web views content process is terminated.
* @see https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455639-webviewwebcontentprocessdidtermi?language=objc
*/
- (void)webViewWebContentProcessDidTerminate:(WKWebView *)webView
{
RCTLogWarn(@"Webview Process Terminated");
if (_onContentProcessDidTerminate) {
NSMutableDictionary<NSString *, id> *event = [self baseEvent];
_onContentProcessDidTerminate(event);
}
}
/**
* Decides whether to allow or cancel a navigation after its response is known.
* @see https://developer.apple.com/documentation/webkit/wknavigationdelegate/1455643-webview?language=objc
*/
- (void) webView:(WKWebView *)webView
decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse
decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler
{
WKNavigationResponsePolicy policy = WKNavigationResponsePolicyAllow;
if (_onHttpError && navigationResponse.forMainFrame) {
if ([navigationResponse.response isKindOfClass:[NSHTTPURLResponse class]]) {
NSHTTPURLResponse *response = (NSHTTPURLResponse *)navigationResponse.response;
NSInteger statusCode = response.statusCode;
if (statusCode >= 400) {
NSMutableDictionary<NSString *, id> *httpErrorEvent = [self baseEvent];
[httpErrorEvent addEntriesFromDictionary: @{
@"url": response.URL.absoluteString,
@"statusCode": @(statusCode)
}];
_onHttpError(httpErrorEvent);
}
NSString *disposition = nil;
if (@available(iOS 13, *)) {
disposition = [response valueForHTTPHeaderField:@"Content-Disposition"];
}
BOOL isAttachment = disposition != nil && [disposition hasPrefix:@"attachment"];
if (isAttachment || !navigationResponse.canShowMIMEType) {
if (_onFileDownload) {
policy = WKNavigationResponsePolicyCancel;
NSMutableDictionary<NSString *, id> *downloadEvent = [self baseEvent];
[downloadEvent addEntriesFromDictionary: @{
@"downloadUrl": (response.URL).absoluteString,
}];
_onFileDownload(downloadEvent);
}
}
}
}
decisionHandler(policy);
}
/**
* Called when an error occurs while the web view is loading content.
* @see https://fburl.com/km6vqenw
*/
- (void) webView:(WKWebView *)webView
didFailProvisionalNavigation:(WKNavigation *)navigation
withError:(NSError *)error
{
if (_onLoadingError) {
if ([error.domain isEqualToString:NSURLErrorDomain] && error.code == NSURLErrorCancelled) {
// NSURLErrorCancelled is reported when a page has a redirect OR if you load
// a new URL in the WebView before the previous one came back. We can just
// ignore these since they aren't real errors.
// http://stackoverflow.com/questions/1024748/how-do-i-fix-nsurlerrordomain-error-999-in-iphone-3-0-os
return;
}
if ([error.domain isEqualToString:@"WebKitErrorDomain"] && error.code == 102 || [error.domain isEqualToString:@"WebKitErrorDomain"] && error.code == 101) {
// Error code 102 "Frame load interrupted" is raised by the WKWebView
// when the URL is from an http redirect. This is a common pattern when
// implementing OAuth with a WebView.
return;
}
NSMutableDictionary<NSString *, id> *event = [self baseEvent];
[event addEntriesFromDictionary:@{
@"didFailProvisionalNavigation": @YES,
@"domain": error.domain,
@"code": @(error.code),
@"description": error.localizedDescription,
}];
_onLoadingError(event);
}
}
- (void)evaluateJS:(NSString *)js
thenCall: (void (^)(NSString*)) callback
{
[self.webView evaluateJavaScript: js completionHandler: ^(id result, NSError *error) {
if (callback != nil) {
callback([NSString stringWithFormat:@"%@", result]);
}
if (error != nil) {
RCTLogWarn(@"%@", [NSString stringWithFormat:@"Error evaluating injectedJavaScript: This is possibly due to an unsupported return type. Try adding true to the end of your injectedJavaScript string. %@", error]);
}
}];
}
-(void)forceIgnoreSilentHardwareSwitch:(BOOL)initialSetup
{
NSString *mp3Str = @"data:audio/mp3;base64,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";
NSString *scr;
if (initialSetup) {
scr = [NSString stringWithFormat:@"var s=new Audio('%@');s.id='wkwebviewAudio';s.controls=false;s.loop=true;s.play();document.body.appendChild(s);true", mp3Str];
} else {
scr = [NSString stringWithFormat:@"var s=document.getElementById('wkwebviewAudio');s.src=null;s.parentNode.removeChild(s);s=null;s=new Audio('%@');s.id='wkwebviewAudio';s.controls=false;s.loop=true;s.play();document.body.appendChild(s);true", mp3Str];
}
[self evaluateJS: scr thenCall: nil];
}
-(void)disableIgnoreSilentSwitch
{
[self evaluateJS: @"document.getElementById('wkwebviewAudio').src=null;true" thenCall: nil];
}
-(void)appDidBecomeActive
{
if (_ignoreSilentHardwareSwitch) {
[self forceIgnoreSilentHardwareSwitch:false];
}
}
-(void)appWillResignActive
{
if (_ignoreSilentHardwareSwitch) {
[self disableIgnoreSilentSwitch];
}
}
/**
* Called when the navigation is complete.
* @see https://fburl.com/rtys6jlb
*/
- (void)webView:(WKWebView *)webView
didFinishNavigation:(WKNavigation *)navigation
{
if (_ignoreSilentHardwareSwitch) {
[self forceIgnoreSilentHardwareSwitch:true];
}
if (_onLoadingFinish) {
_onLoadingFinish([self baseEvent]);
}
}
- (void)injectJavaScript:(NSString *)script
{
[self evaluateJS: script thenCall: nil];
}
- (void)goForward
{
[_webView goForward];
}
- (void)goBack
{
[_webView goBack];
}
- (void)reload
{
/**
* When the initial load fails due to network connectivity issues,
* [_webView reload] doesn't reload the webpage. Therefore, we must
* manually call [_webView loadRequest:request].
*/
NSURLRequest *request = [self requestForSource:self.source];
if (request.URL && !_webView.URL.absoluteString.length) {
[_webView loadRequest:request];
} else {
[_webView reload];
}
}
#if !TARGET_OS_OSX
- (void)addPullToRefreshControl
{
UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init];
_refreshControl = refreshControl;
[_webView.scrollView addSubview: refreshControl];
[refreshControl addTarget:self action:@selector(pullToRefresh:) forControlEvents: UIControlEventValueChanged];
}
- (void)pullToRefresh:(UIRefreshControl *)refreshControl
{
[self reload];
[refreshControl endRefreshing];
}
- (void)setPullToRefreshEnabled:(BOOL)pullToRefreshEnabled
{
_pullToRefreshEnabled = pullToRefreshEnabled;
if (pullToRefreshEnabled) {
[self addPullToRefreshControl];
} else {
[_refreshControl removeFromSuperview];
}
[self setBounces:_bounces];
}
#endif // !TARGET_OS_OSX
- (void)stopLoading
{
[_webView stopLoading];
}
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#if !TARGET_OS_OSX
- (void)setBounces:(BOOL)bounces
{
_bounces = bounces;
//For UIRefreshControl to work correctly, the bounces should always be true
_webView.scrollView.bounces = _pullToRefreshEnabled || bounces;
}
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#endif // !TARGET_OS_OSX
- (void)setInjectedJavaScript:(NSString *)source {
_injectedJavaScript = source;
self.atEndScript = source == nil ? nil : [[WKUserScript alloc] initWithSource:source
injectionTime:WKUserScriptInjectionTimeAtDocumentEnd
forMainFrameOnly:_injectedJavaScriptForMainFrameOnly];
if(_webView != nil){
[self resetupScripts:_webView.configuration];
}
}
- (void)setInjectedJavaScriptBeforeContentLoaded:(NSString *)source {
_injectedJavaScriptBeforeContentLoaded = source;
self.atStartScript = source == nil ? nil : [[WKUserScript alloc] initWithSource:source
injectionTime:WKUserScriptInjectionTimeAtDocumentStart
forMainFrameOnly:_injectedJavaScriptBeforeContentLoadedForMainFrameOnly];
if(_webView != nil){
[self resetupScripts:_webView.configuration];
}
}
- (void)setInjectedJavaScriptForMainFrameOnly:(BOOL)mainFrameOnly {
_injectedJavaScriptForMainFrameOnly = mainFrameOnly;
[self setInjectedJavaScript:_injectedJavaScript];
}
- (void)setInjectedJavaScriptBeforeContentLoadedForMainFrameOnly:(BOOL)mainFrameOnly {
_injectedJavaScriptBeforeContentLoadedForMainFrameOnly = mainFrameOnly;
[self setInjectedJavaScriptBeforeContentLoaded:_injectedJavaScriptBeforeContentLoaded];
}
- (void)setMessagingEnabled:(BOOL)messagingEnabled {
_messagingEnabled = messagingEnabled;
self.postMessageScript = _messagingEnabled ?
[
[WKUserScript alloc]
initWithSource: [
NSString
stringWithFormat:
@"window.%@ = {"
" postMessage: function (data) {"
" window.webkit.messageHandlers.%@.postMessage(String(data));"
" }"
"};", MessageHandlerName, MessageHandlerName
]
injectionTime:WKUserScriptInjectionTimeAtDocumentStart
/* TODO: For a separate (minor) PR: use logic like this (as react-native-wkwebview does) so that messaging can be used in all frames if desired.
* I am keeping it as YES for consistency with previous behaviour. */
// forMainFrameOnly:_messagingEnabledForMainFrameOnly
forMainFrameOnly:YES
] :
nil;
if(_webView != nil){
[self resetupScripts:_webView.configuration];
}
}
- (void)resetupScripts:(WKWebViewConfiguration *)wkWebViewConfig {
[wkWebViewConfig.userContentController removeAllUserScripts];
[wkWebViewConfig.userContentController removeScriptMessageHandlerForName:MessageHandlerName];
NSString *html5HistoryAPIShimSource = [NSString stringWithFormat:
@"(function(history) {\n"
" function notify(type) {\n"
" setTimeout(function() {\n"
" window.webkit.messageHandlers.%@.postMessage(type)\n"
" }, 0)\n"
" }\n"
" function shim(f) {\n"
" return function pushState() {\n"
" notify('other')\n"
" return f.apply(history, arguments)\n"
" }\n"
" }\n"
" history.pushState = shim(history.pushState)\n"
" history.replaceState = shim(history.replaceState)\n"
" window.addEventListener('popstate', function() {\n"
" notify('backforward')\n"
" })\n"
"})(window.history)\n", HistoryShimName
];
WKUserScript *script = [[WKUserScript alloc] initWithSource:html5HistoryAPIShimSource injectionTime:WKUserScriptInjectionTimeAtDocumentStart forMainFrameOnly:YES];
[wkWebViewConfig.userContentController addUserScript:script];
if(_sharedCookiesEnabled) {
// More info to sending cookies with WKWebView
// https://stackoverflow.com/questions/26573137/can-i-set-the-cookies-to-be-used-by-a-wkwebview/26577303#26577303
if (@available(iOS 11.0, *)) {
// Set Cookies in iOS 11 and above, initialize websiteDataStore before setting cookies
// See also https://forums.developer.apple.com/thread/97194
// check if websiteDataStore has not been initialized before
if(!_incognito && !_cacheEnabled) {
wkWebViewConfig.websiteDataStore = [WKWebsiteDataStore nonPersistentDataStore];
}
for (NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) {
[wkWebViewConfig.websiteDataStore.httpCookieStore setCookie:cookie completionHandler:nil];
}
} else {
NSMutableString *script = [NSMutableString string];
// Clear all existing cookies in a direct called function. This ensures that no
// javascript error will break the web content javascript.
// We keep this code here, if someone requires that Cookies are also removed within the
// the WebView and want to extends the current sharedCookiesEnabled option with an
// additional property.
// Generates JS: document.cookie = "key=; Expires=Thu, 01 Jan 1970 00:00:01 GMT;"
// for each cookie which is already available in the WebView context.
/*
[script appendString:@"(function () {\n"];
[script appendString:@" var cookies = document.cookie.split('; ');\n"];
[script appendString:@" for (var i = 0; i < cookies.length; i++) {\n"];
[script appendString:@" if (cookies[i].indexOf('=') !== -1) {\n"];
[script appendString:@" document.cookie = cookies[i].split('=')[0] + '=; Expires=Thu, 01 Jan 1970 00:00:01 GMT';\n"];
[script appendString:@" }\n"];
[script appendString:@" }\n"];
[script appendString:@"})();\n\n"];
*/
// Set cookies in a direct called function. This ensures that no
// javascript error will break the web content javascript.
// Generates JS: document.cookie = "key=value; Path=/; Expires=Thu, 01 Jan 20xx 00:00:01 GMT;"
// for each cookie which is available in the application context.
[script appendString:@"(function () {\n"];
for (NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) {
[script appendFormat:@"document.cookie = %@ + '=' + %@",
RCTJSONStringify(cookie.name, NULL),
RCTJSONStringify(cookie.value, NULL)];
if (cookie.path) {
[script appendFormat:@" + '; Path=' + %@", RCTJSONStringify(cookie.path, NULL)];
}
if (cookie.expiresDate) {
[script appendFormat:@" + '; Expires=' + new Date(%f).toUTCString()",
cookie.expiresDate.timeIntervalSince1970 * 1000
];
}
[script appendString:@";\n"];
}
[script appendString:@"})();\n"];
WKUserScript* cookieInScript = [[WKUserScript alloc] initWithSource:script
injectionTime:WKUserScriptInjectionTimeAtDocumentStart
forMainFrameOnly:YES];
[wkWebViewConfig.userContentController addUserScript:cookieInScript];
}
}
if(_messagingEnabled){
if (self.postMessageScript){
[wkWebViewConfig.userContentController addScriptMessageHandler:[[RNCWeakScriptMessageDelegate alloc] initWithDelegate:self]
name:MessageHandlerName];
[wkWebViewConfig.userContentController addUserScript:self.postMessageScript];
}
if (self.atEndScript) {
[wkWebViewConfig.userContentController addUserScript:self.atEndScript];
}
}
// Whether or not messaging is enabled, add the startup script if it exists.
if (self.atStartScript) {
[wkWebViewConfig.userContentController addUserScript:self.atStartScript];
}
}
- (NSURLRequest *)requestForSource:(id)json {
NSURLRequest *request = [RCTConvert NSURLRequest:self.source];
// If sharedCookiesEnabled we automatically add all application cookies to the
// http request. This is automatically done on iOS 11+ in the WebView constructor.
// Se we need to manually add these shared cookies here only for iOS versions < 11.
if (_sharedCookiesEnabled) {
if (@available(iOS 11.0, *)) {
// see WKWebView initialization for added cookies
} else {
NSArray *cookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookiesForURL:request.URL];
NSDictionary<NSString *, NSString *> *cookieHeader = [NSHTTPCookie requestHeaderFieldsWithCookies:cookies];
NSMutableURLRequest *mutableRequest = [request mutableCopy];
[mutableRequest setAllHTTPHeaderFields:cookieHeader];
return mutableRequest;
}
}
return request;
}
@end
@implementation RNCWeakScriptMessageDelegate
- (instancetype)initWithDelegate:(id<WKScriptMessageHandler>)scriptDelegate {
self = [super init];
if (self) {
_scriptDelegate = scriptDelegate;
}
return self;
}
- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message {
[self.scriptDelegate userContentController:userContentController didReceiveScriptMessage:message];
}
@end