996 lines
37 KiB
Objective-C
996 lines
37 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import "RNCWebView.h"
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#import <React/RCTConvert.h>
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#import <React/RCTAutoInsetsProtocol.h>
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#import "RNCWKProcessPoolManager.h"
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#import <UIKit/UIKit.h>
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#import "objc/runtime.h"
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static NSTimer *keyboardTimer;
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static NSString *const MessageHandlerName = @"ReactNativeWebView";
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static NSURLCredential* clientAuthenticationCredential;
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static NSDictionary* customCertificatesForHost;
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// runtime trick to remove WKWebView keyboard default toolbar
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// see: http://stackoverflow.com/questions/19033292/ios-7-uiwebview-keyboard-issue/19042279#19042279
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@interface _SwizzleHelperWK : NSObject @end
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@implementation _SwizzleHelperWK
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-(id)inputAccessoryView
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{
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return nil;
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}
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@end
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@interface RNCWebView () <WKUIDelegate, WKNavigationDelegate, WKScriptMessageHandler, UIScrollViewDelegate, RCTAutoInsetsProtocol>
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@property (nonatomic, copy) RCTDirectEventBlock onLoadingStart;
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@property (nonatomic, copy) RCTDirectEventBlock onLoadingFinish;
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@property (nonatomic, copy) RCTDirectEventBlock onLoadingError;
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@property (nonatomic, copy) RCTDirectEventBlock onLoadingProgress;
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@property (nonatomic, copy) RCTDirectEventBlock onShouldStartLoadWithRequest;
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@property (nonatomic, copy) RCTDirectEventBlock onHttpError;
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@property (nonatomic, copy) RCTDirectEventBlock onMessage;
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@property (nonatomic, copy) RCTDirectEventBlock onScroll;
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@property (nonatomic, copy) WKWebView *webView;
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@end
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@implementation RNCWebView
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{
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UIColor * _savedBackgroundColor;
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BOOL _savedHideKeyboardAccessoryView;
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BOOL _savedKeyboardDisplayRequiresUserAction;
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// Workaround for StatusBar appearance bug for iOS 12
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// https://github.com/react-native-community/react-native-webview/issues/62
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BOOL _isFullScreenVideoOpen;
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UIStatusBarStyle _savedStatusBarStyle;
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BOOL _savedStatusBarHidden;
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#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
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UIScrollViewContentInsetAdjustmentBehavior _savedContentInsetAdjustmentBehavior;
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#endif
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}
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- (instancetype)initWithFrame:(CGRect)frame
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{
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if ((self = [super initWithFrame:frame])) {
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super.backgroundColor = [UIColor clearColor];
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_bounces = YES;
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_scrollEnabled = YES;
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_showsHorizontalScrollIndicator = YES;
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_showsVerticalScrollIndicator = YES;
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_directionalLockEnabled = YES;
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_automaticallyAdjustContentInsets = YES;
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_contentInset = UIEdgeInsetsZero;
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_savedKeyboardDisplayRequiresUserAction = YES;
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_savedStatusBarStyle = RCTSharedApplication().statusBarStyle;
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_savedStatusBarHidden = RCTSharedApplication().statusBarHidden;
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#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
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_savedContentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
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#endif
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}
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if (@available(iOS 12.0, *)) {
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// Workaround for a keyboard dismissal bug present in iOS 12
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// https://openradar.appspot.com/radar?id=5018321736957952
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[[NSNotificationCenter defaultCenter]
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addObserver:self
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selector:@selector(keyboardWillHide)
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name:UIKeyboardWillHideNotification object:nil];
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[[NSNotificationCenter defaultCenter]
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addObserver:self
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selector:@selector(keyboardWillShow)
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name:UIKeyboardWillShowNotification object:nil];
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// Workaround for StatusBar appearance bug for iOS 12
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// https://github.com/react-native-community/react-native-webview/issues/62
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(toggleFullScreenVideoStatusBars) name:@"_MRMediaRemotePlayerSupportedCommandsDidChangeNotification" object:nil];
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}
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return self;
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}
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- (void)dealloc
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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/**
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* See https://stackoverflow.com/questions/25713069/why-is-wkwebview-not-opening-links-with-target-blank/25853806#25853806 for details.
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*/
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- (WKWebView *)webView:(WKWebView *)webView createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration forNavigationAction:(WKNavigationAction *)navigationAction windowFeatures:(WKWindowFeatures *)windowFeatures
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{
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if (!navigationAction.targetFrame.isMainFrame) {
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[webView loadRequest:navigationAction.request];
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}
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return nil;
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}
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- (void)didMoveToWindow
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{
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if (self.window != nil && _webView == nil) {
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WKWebViewConfiguration *wkWebViewConfig = [WKWebViewConfiguration new];
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WKPreferences *prefs = [[WKPreferences alloc]init];
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if (!_javaScriptEnabled) {
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prefs.javaScriptEnabled = NO;
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wkWebViewConfig.preferences = prefs;
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}
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if (_incognito) {
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wkWebViewConfig.websiteDataStore = [WKWebsiteDataStore nonPersistentDataStore];
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} else if (_cacheEnabled) {
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wkWebViewConfig.websiteDataStore = [WKWebsiteDataStore defaultDataStore];
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}
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if(self.useSharedProcessPool) {
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wkWebViewConfig.processPool = [[RNCWKProcessPoolManager sharedManager] sharedProcessPool];
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}
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wkWebViewConfig.userContentController = [WKUserContentController new];
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if (_messagingEnabled) {
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[wkWebViewConfig.userContentController addScriptMessageHandler:self name:MessageHandlerName];
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NSString *source = [NSString stringWithFormat:
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@"window.%@ = {"
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" postMessage: function (data) {"
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" window.webkit.messageHandlers.%@.postMessage(String(data));"
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" }"
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"};", MessageHandlerName, MessageHandlerName
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];
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WKUserScript *script = [[WKUserScript alloc] initWithSource:source injectionTime:WKUserScriptInjectionTimeAtDocumentStart forMainFrameOnly:YES];
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[wkWebViewConfig.userContentController addUserScript:script];
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}
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wkWebViewConfig.allowsInlineMediaPlayback = _allowsInlineMediaPlayback;
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#if WEBKIT_IOS_10_APIS_AVAILABLE
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wkWebViewConfig.mediaTypesRequiringUserActionForPlayback = _mediaPlaybackRequiresUserAction
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? WKAudiovisualMediaTypeAll
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: WKAudiovisualMediaTypeNone;
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wkWebViewConfig.dataDetectorTypes = _dataDetectorTypes;
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#else
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wkWebViewConfig.mediaPlaybackRequiresUserAction = _mediaPlaybackRequiresUserAction;
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#endif
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if (_applicationNameForUserAgent) {
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wkWebViewConfig.applicationNameForUserAgent = [NSString stringWithFormat:@"%@ %@", wkWebViewConfig.applicationNameForUserAgent, _applicationNameForUserAgent];
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}
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if(_sharedCookiesEnabled) {
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// More info to sending cookies with WKWebView
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// https://stackoverflow.com/questions/26573137/can-i-set-the-cookies-to-be-used-by-a-wkwebview/26577303#26577303
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if (@available(iOS 11.0, *)) {
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// Set Cookies in iOS 11 and above, initialize websiteDataStore before setting cookies
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// See also https://forums.developer.apple.com/thread/97194
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// check if websiteDataStore has not been initialized before
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if(!_incognito && !_cacheEnabled) {
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wkWebViewConfig.websiteDataStore = [WKWebsiteDataStore nonPersistentDataStore];
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}
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for (NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) {
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[wkWebViewConfig.websiteDataStore.httpCookieStore setCookie:cookie completionHandler:nil];
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}
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} else {
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NSMutableString *script = [NSMutableString string];
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// Clear all existing cookies in a direct called function. This ensures that no
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// javascript error will break the web content javascript.
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// We keep this code here, if someone requires that Cookies are also removed within the
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// the WebView and want to extends the current sharedCookiesEnabled option with an
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// additional property.
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// Generates JS: document.cookie = "key=; Expires=Thu, 01 Jan 1970 00:00:01 GMT;"
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// for each cookie which is already available in the WebView context.
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/*
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[script appendString:@"(function () {\n"];
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[script appendString:@" var cookies = document.cookie.split('; ');\n"];
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[script appendString:@" for (var i = 0; i < cookies.length; i++) {\n"];
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[script appendString:@" if (cookies[i].indexOf('=') !== -1) {\n"];
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[script appendString:@" document.cookie = cookies[i].split('=')[0] + '=; Expires=Thu, 01 Jan 1970 00:00:01 GMT';\n"];
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[script appendString:@" }\n"];
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[script appendString:@" }\n"];
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[script appendString:@"})();\n\n"];
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*/
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// Set cookies in a direct called function. This ensures that no
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// javascript error will break the web content javascript.
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// Generates JS: document.cookie = "key=value; Path=/; Expires=Thu, 01 Jan 20xx 00:00:01 GMT;"
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// for each cookie which is available in the application context.
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[script appendString:@"(function () {\n"];
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for (NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) {
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[script appendFormat:@"document.cookie = %@ + '=' + %@",
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RCTJSONStringify(cookie.name, NULL),
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RCTJSONStringify(cookie.value, NULL)];
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if (cookie.path) {
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[script appendFormat:@" + '; Path=' + %@", RCTJSONStringify(cookie.path, NULL)];
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}
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if (cookie.expiresDate) {
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[script appendFormat:@" + '; Expires=' + new Date(%f).toUTCString()",
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cookie.expiresDate.timeIntervalSince1970 * 1000
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];
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}
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[script appendString:@";\n"];
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}
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[script appendString:@"})();\n"];
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WKUserScript* cookieInScript = [[WKUserScript alloc] initWithSource:script
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injectionTime:WKUserScriptInjectionTimeAtDocumentStart
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forMainFrameOnly:YES];
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[wkWebViewConfig.userContentController addUserScript:cookieInScript];
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}
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}
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_webView = [[WKWebView alloc] initWithFrame:self.bounds configuration: wkWebViewConfig];
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[self setBackgroundColor: _savedBackgroundColor];
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_webView.scrollView.delegate = self;
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_webView.UIDelegate = self;
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_webView.navigationDelegate = self;
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_webView.scrollView.scrollEnabled = _scrollEnabled;
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_webView.scrollView.pagingEnabled = _pagingEnabled;
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_webView.scrollView.bounces = _bounces;
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_webView.scrollView.showsHorizontalScrollIndicator = _showsHorizontalScrollIndicator;
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_webView.scrollView.showsVerticalScrollIndicator = _showsVerticalScrollIndicator;
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_webView.scrollView.directionalLockEnabled = _directionalLockEnabled;
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_webView.allowsLinkPreview = _allowsLinkPreview;
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[_webView addObserver:self forKeyPath:@"estimatedProgress" options:NSKeyValueObservingOptionOld | NSKeyValueObservingOptionNew context:nil];
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_webView.allowsBackForwardNavigationGestures = _allowsBackForwardNavigationGestures;
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if (_userAgent) {
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_webView.customUserAgent = _userAgent;
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}
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#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
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if ([_webView.scrollView respondsToSelector:@selector(setContentInsetAdjustmentBehavior:)]) {
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_webView.scrollView.contentInsetAdjustmentBehavior = _savedContentInsetAdjustmentBehavior;
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}
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#endif
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[self addSubview:_webView];
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[self setHideKeyboardAccessoryView: _savedHideKeyboardAccessoryView];
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[self setKeyboardDisplayRequiresUserAction: _savedKeyboardDisplayRequiresUserAction];
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[self visitSource];
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}
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}
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// Update webview property when the component prop changes.
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- (void)setAllowsBackForwardNavigationGestures:(BOOL)allowsBackForwardNavigationGestures {
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_allowsBackForwardNavigationGestures = allowsBackForwardNavigationGestures;
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_webView.allowsBackForwardNavigationGestures = _allowsBackForwardNavigationGestures;
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}
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- (void)removeFromSuperview
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{
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if (_webView) {
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[_webView.configuration.userContentController removeScriptMessageHandlerForName:MessageHandlerName];
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[_webView removeObserver:self forKeyPath:@"estimatedProgress"];
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[_webView removeFromSuperview];
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_webView.scrollView.delegate = nil;
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_webView = nil;
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}
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[super removeFromSuperview];
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}
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-(void)toggleFullScreenVideoStatusBars
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{
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#pragma clang diagnostic ignored "-Wdeprecated-declarations"
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if (!_isFullScreenVideoOpen) {
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_isFullScreenVideoOpen = YES;
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RCTUnsafeExecuteOnMainQueueSync(^{
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[RCTSharedApplication() setStatusBarStyle:UIStatusBarStyleLightContent animated:YES];
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});
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} else {
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_isFullScreenVideoOpen = NO;
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RCTUnsafeExecuteOnMainQueueSync(^{
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[RCTSharedApplication() setStatusBarHidden:_savedStatusBarHidden animated:YES];
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[RCTSharedApplication() setStatusBarStyle:_savedStatusBarStyle animated:YES];
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});
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}
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#pragma clang diagnostic pop
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}
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-(void)keyboardWillHide
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{
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keyboardTimer = [NSTimer scheduledTimerWithTimeInterval:0 target:self selector:@selector(keyboardDisplacementFix) userInfo:nil repeats:false];
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[[NSRunLoop mainRunLoop] addTimer:keyboardTimer forMode:NSRunLoopCommonModes];
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}
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-(void)keyboardWillShow
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{
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if (keyboardTimer != nil) {
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[keyboardTimer invalidate];
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}
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}
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-(void)keyboardDisplacementFix
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{
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// Additional viewport checks to prevent unintentional scrolls
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UIScrollView *scrollView = self.webView.scrollView;
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double maxContentOffset = scrollView.contentSize.height - scrollView.frame.size.height;
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if (maxContentOffset < 0) {
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maxContentOffset = 0;
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}
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if (scrollView.contentOffset.y > maxContentOffset) {
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// https://stackoverflow.com/a/9637807/824966
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[UIView animateWithDuration:.25 animations:^{
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scrollView.contentOffset = CGPointMake(0, maxContentOffset);
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}];
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}
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}
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- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context{
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if ([keyPath isEqual:@"estimatedProgress"] && object == self.webView) {
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if(_onLoadingProgress){
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NSMutableDictionary<NSString *, id> *event = [self baseEvent];
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[event addEntriesFromDictionary:@{@"progress":[NSNumber numberWithDouble:self.webView.estimatedProgress]}];
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_onLoadingProgress(event);
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}
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}else{
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[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
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}
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}
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- (void)setBackgroundColor:(UIColor *)backgroundColor
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{
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_savedBackgroundColor = backgroundColor;
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if (_webView == nil) {
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return;
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}
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CGFloat alpha = CGColorGetAlpha(backgroundColor.CGColor);
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self.opaque = _webView.opaque = (alpha == 1.0);
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_webView.scrollView.backgroundColor = backgroundColor;
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_webView.backgroundColor = backgroundColor;
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}
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#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
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- (void)setContentInsetAdjustmentBehavior:(UIScrollViewContentInsetAdjustmentBehavior)behavior
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{
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_savedContentInsetAdjustmentBehavior = behavior;
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if (_webView == nil) {
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return;
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}
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if ([_webView.scrollView respondsToSelector:@selector(setContentInsetAdjustmentBehavior:)]) {
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CGPoint contentOffset = _webView.scrollView.contentOffset;
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_webView.scrollView.contentInsetAdjustmentBehavior = behavior;
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_webView.scrollView.contentOffset = contentOffset;
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}
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}
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#endif
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/**
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* This method is called whenever JavaScript running within the web view calls:
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* - window.webkit.messageHandlers[MessageHandlerName].postMessage
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*/
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- (void)userContentController:(WKUserContentController *)userContentController
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didReceiveScriptMessage:(WKScriptMessage *)message
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{
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if (_onMessage != nil) {
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NSMutableDictionary<NSString *, id> *event = [self baseEvent];
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[event addEntriesFromDictionary: @{@"data": message.body}];
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_onMessage(event);
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}
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}
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- (void)setSource:(NSDictionary *)source
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{
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if (![_source isEqualToDictionary:source]) {
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_source = [source copy];
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if (_webView != nil) {
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[self visitSource];
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}
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}
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}
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- (void)setAllowingReadAccessToURL:(NSString *)allowingReadAccessToURL
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{
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if (![_allowingReadAccessToURL isEqualToString:allowingReadAccessToURL]) {
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_allowingReadAccessToURL = [allowingReadAccessToURL copy];
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if (_webView != nil) {
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[self visitSource];
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}
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}
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}
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- (void)setContentInset:(UIEdgeInsets)contentInset
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{
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_contentInset = contentInset;
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[RCTView autoAdjustInsetsForView:self
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withScrollView:_webView.scrollView
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updateOffset:NO];
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}
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- (void)refreshContentInset
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{
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[RCTView autoAdjustInsetsForView:self
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withScrollView:_webView.scrollView
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updateOffset:YES];
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}
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- (void)visitSource
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{
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// Check for a static html source first
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NSString *html = [RCTConvert NSString:_source[@"html"]];
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if (html) {
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NSURL *baseURL = [RCTConvert NSURL:_source[@"baseUrl"]];
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if (!baseURL) {
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baseURL = [NSURL URLWithString:@"about:blank"];
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}
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[_webView loadHTMLString:html baseURL:baseURL];
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return;
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}
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NSURLRequest *request = [self requestForSource:_source];
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// Because of the way React works, as pages redirect, we actually end up
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// passing the redirect urls back here, so we ignore them if trying to load
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// the same url. We'll expose a call to 'reload' to allow a user to load
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// the existing page.
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if ([request.URL isEqual:_webView.URL]) {
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return;
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}
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if (!request.URL) {
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// Clear the webview
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[_webView loadHTMLString:@"" baseURL:nil];
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return;
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}
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if (request.URL.host) {
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[_webView loadRequest:request];
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}
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else {
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NSURL* readAccessUrl = _allowingReadAccessToURL ? [RCTConvert NSURL:_allowingReadAccessToURL] : request.URL;
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[_webView loadFileURL:request.URL allowingReadAccessToURL:readAccessUrl];
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}
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}
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-(void)setKeyboardDisplayRequiresUserAction:(BOOL)keyboardDisplayRequiresUserAction
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{
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if (_webView == nil) {
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_savedKeyboardDisplayRequiresUserAction = keyboardDisplayRequiresUserAction;
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return;
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}
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if (_savedKeyboardDisplayRequiresUserAction == true) {
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return;
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}
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UIView* subview;
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for (UIView* view in _webView.scrollView.subviews) {
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if([[view.class description] hasPrefix:@"WK"])
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subview = view;
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}
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if(subview == nil) return;
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Class class = subview.class;
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|
||
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);
|
||
}
|
||
|
||
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
|
||
{
|
||
scrollView.decelerationRate = _decelerationRate;
|
||
}
|
||
|
||
- (void)setScrollEnabled:(BOOL)scrollEnabled
|
||
{
|
||
_scrollEnabled = scrollEnabled;
|
||
_webView.scrollView.scrollEnabled = scrollEnabled;
|
||
}
|
||
|
||
- (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;
|
||
}
|
||
|
||
- (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;
|
||
_webView.scrollView.contentInset = _contentInset;
|
||
}
|
||
|
||
- (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
|
||
|
||
/**
|
||
* alert
|
||
*/
|
||
- (void)webView:(WKWebView *)webView runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(void))completionHandler
|
||
{
|
||
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];
|
||
|
||
}
|
||
|
||
/**
|
||
* confirm
|
||
*/
|
||
- (void)webView:(WKWebView *)webView runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(BOOL))completionHandler{
|
||
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];
|
||
}
|
||
|
||
/**
|
||
* prompt
|
||
*/
|
||
- (void)webView:(WKWebView *)webView runJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(NSString *)defaultText initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(NSString *))completionHandler{
|
||
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];
|
||
}
|
||
|
||
/**
|
||
* topViewController
|
||
*/
|
||
-(UIViewController *)topViewController{
|
||
UIViewController *controller = [self topViewControllerWithRootViewController:[self getCurrentWindow].rootViewController];
|
||
return controller;
|
||
}
|
||
|
||
/**
|
||
* topViewControllerWithRootViewController
|
||
*/
|
||
-(UIViewController *)topViewControllerWithRootViewController:(UIViewController *)viewController{
|
||
if (viewController==nil) return nil;
|
||
if (viewController.presentedViewController!=nil) {
|
||
return [self topViewControllerWithRootViewController:viewController.presentedViewController];
|
||
} else if ([viewController isKindOfClass:[UITabBarController class]]){
|
||
return [self topViewControllerWithRootViewController:[(UITabBarController *)viewController selectedViewController]];
|
||
} else if ([viewController isKindOfClass:[UINavigationController class]]){
|
||
return [self topViewControllerWithRootViewController:[(UINavigationController *)viewController visibleViewController]];
|
||
} else {
|
||
return viewController;
|
||
}
|
||
}
|
||
/**
|
||
* getCurrentWindow
|
||
*/
|
||
-(UIWindow *)getCurrentWindow{
|
||
UIWindow *window = [UIApplication sharedApplication].keyWindow;
|
||
if (window.windowLevel!=UIWindowLevelNormal) {
|
||
for (UIWindow *wid in [UIApplication sharedApplication].windows) {
|
||
if (window.windowLevel==UIWindowLevelNormal) {
|
||
window = wid;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
return window;
|
||
}
|
||
|
||
|
||
/**
|
||
* 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;
|
||
|
||
if (_onShouldStartLoadWithRequest) {
|
||
NSMutableDictionary<NSString *, id> *event = [self baseEvent];
|
||
[event addEntriesFromDictionary: @{
|
||
@"url": (request.URL).absoluteString,
|
||
@"mainDocumentURL": (request.mainDocumentURL).absoluteString,
|
||
@"navigationType": navigationTypes[@(navigationType)]
|
||
}];
|
||
if (![self.delegate webView:self
|
||
shouldStartLoadForRequest:event
|
||
withCallback:_onShouldStartLoadWithRequest]) {
|
||
decisionHandler(WKNavigationResponsePolicyCancel);
|
||
return;
|
||
}
|
||
}
|
||
|
||
if (_onLoadingStart) {
|
||
// We have this check to filter out iframe requests and whatnot
|
||
BOOL isTopFrame = [request.URL isEqual:request.mainDocumentURL];
|
||
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(WKNavigationResponsePolicyAllow);
|
||
}
|
||
|
||
/**
|
||
* 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
|
||
{
|
||
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> *event = [self baseEvent];
|
||
[event addEntriesFromDictionary: @{
|
||
@"url": response.URL.absoluteString,
|
||
@"statusCode": @(statusCode)
|
||
}];
|
||
|
||
_onHttpError(event);
|
||
}
|
||
}
|
||
}
|
||
|
||
decisionHandler(WKNavigationResponsePolicyAllow);
|
||
}
|
||
|
||
/**
|
||
* 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 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]);
|
||
}
|
||
}];
|
||
}
|
||
|
||
/**
|
||
* Called when the navigation is complete.
|
||
* @see https://fburl.com/rtys6jlb
|
||
*/
|
||
- (void) webView:(WKWebView *)webView
|
||
didFinishNavigation:(WKNavigation *)navigation
|
||
{
|
||
if (_injectedJavaScript) {
|
||
[self evaluateJS: _injectedJavaScript thenCall: ^(NSString *jsEvaluationValue) {
|
||
NSMutableDictionary *event = [self baseEvent];
|
||
event[@"jsEvaluationValue"] = jsEvaluationValue;
|
||
|
||
if (self.onLoadingFinish) {
|
||
self.onLoadingFinish(event);
|
||
}
|
||
}];
|
||
} else 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];
|
||
}
|
||
}
|
||
|
||
- (void)stopLoading
|
||
{
|
||
[_webView stopLoading];
|
||
}
|
||
|
||
- (void)setBounces:(BOOL)bounces
|
||
{
|
||
_bounces = bounces;
|
||
_webView.scrollView.bounces = bounces;
|
||
}
|
||
|
||
- (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
|