import { WebViewNavigationType } from '.'; import { WebViewBase } from './web-view-common'; import { profile } from '../../profiling'; import { Trace } from '../../trace'; export * from './web-view-common'; import { knownFolders } from '../../file-system'; @NativeClass class WKNavigationDelegateImpl extends NSObject implements WKNavigationDelegate { public static ObjCProtocols = [WKNavigationDelegate]; public static initWithOwner(owner: WeakRef): WKNavigationDelegateImpl { const handler = WKNavigationDelegateImpl.new(); handler._owner = owner; return handler; } private _owner: WeakRef; public webViewDecidePolicyForNavigationActionDecisionHandler(webView: WKWebView, navigationAction: WKNavigationAction, decisionHandler: any): void { const owner = this._owner.get(); if (owner && navigationAction.request.URL) { let navType: WebViewNavigationType = 'other'; switch (navigationAction.navigationType) { case WKNavigationType.LinkActivated: navType = 'linkClicked'; break; case WKNavigationType.FormSubmitted: navType = 'formSubmitted'; break; case WKNavigationType.BackForward: navType = 'backForward'; break; case WKNavigationType.Reload: navType = 'reload'; break; case WKNavigationType.FormResubmitted: navType = 'formResubmitted'; break; } decisionHandler(WKNavigationActionPolicy.Allow); if (Trace.isEnabled()) { Trace.write('WKNavigationDelegateClass.webViewDecidePolicyForNavigationActionDecisionHandler(' + navigationAction.request.URL.absoluteString + ', ' + navigationAction.navigationType + ')', Trace.categories.Debug); } owner._onLoadStarted(navigationAction.request.URL.absoluteString, navType); } } public webViewDidStartProvisionalNavigation(webView: WKWebView, navigation: WKNavigation): void { if (Trace.isEnabled()) { Trace.write('WKNavigationDelegateClass.webViewDidStartProvisionalNavigation(' + webView.URL + ')', Trace.categories.Debug); } } public webViewDidFinishNavigation(webView: WKWebView, navigation: WKNavigation): void { if (Trace.isEnabled()) { Trace.write('WKNavigationDelegateClass.webViewDidFinishNavigation(' + webView.URL + ')', Trace.categories.Debug); } const owner = this._owner.get(); if (owner) { let src = owner.src; if (webView.URL) { src = webView.URL.absoluteString; } owner._onLoadFinished(src); } } public webViewDidFailNavigationWithError(webView: WKWebView, navigation: WKNavigation, error: NSError): void { const owner = this._owner.get(); if (owner) { let src = owner.src; if (webView.URL) { src = webView.URL.absoluteString; } if (Trace.isEnabled()) { Trace.write('WKNavigationDelegateClass.webViewDidFailNavigationWithError(' + error.localizedDescription + ')', Trace.categories.Debug); } owner._onLoadFinished(src, error.localizedDescription); } } public webViewDidFailProvisionalNavigationWithError(webView: WKWebView, navigation: WKNavigation, error: NSError): void { const owner = this._owner.get(); if (owner) { let src = owner.src; if (webView.URL) { src = webView.URL.absoluteString; } if (Trace.isEnabled()) { Trace.write('WKNavigationDelegateClass.webViewDidFailProvisionalNavigationWithError(' + error.localizedDescription + ')', Trace.categories.Debug); } owner._onLoadFinished(src, error.localizedDescription); } } } export class WebView extends WebViewBase { nativeViewProtected: WKWebView; private _delegate: any; createNativeView() { const jScript = "var meta = document.createElement('meta'); meta.setAttribute('name', 'viewport'); meta.setAttribute('content', 'initial-scale=1.0'); document.getElementsByTagName('head')[0].appendChild(meta);"; const wkUScript = WKUserScript.alloc().initWithSourceInjectionTimeForMainFrameOnly(jScript, WKUserScriptInjectionTime.AtDocumentEnd, true); const wkUController = WKUserContentController.new(); wkUController.addUserScript(wkUScript); const configuration = WKWebViewConfiguration.new(); configuration.userContentController = wkUController; configuration.preferences.setValueForKey(true, 'allowFileAccessFromFileURLs'); return new WKWebView({ frame: CGRectZero, configuration: configuration, }); } initNativeView() { super.initNativeView(); this._delegate = WKNavigationDelegateImpl.initWithOwner(new WeakRef(this)); this.ios.navigationDelegate = this._delegate; } @profile public onLoaded() { super.onLoaded(); } public onUnloaded() { super.onUnloaded(); } // @ts-ignore get ios(): WKWebView { return this.nativeViewProtected; } public stopLoading() { this.ios.stopLoading(); } public _loadUrl(src: string) { if (src.startsWith('file:///')) { const cachePath = src.substring(0, src.lastIndexOf('/')); this.ios.loadFileURLAllowingReadAccessToURL(NSURL.URLWithString(src), NSURL.URLWithString(cachePath)); } else { this.ios.loadRequest(NSURLRequest.requestWithURL(NSURL.URLWithString(src))); } } public _loadData(content: string) { this.ios.loadHTMLStringBaseURL(content, NSURL.alloc().initWithString(`file:///${knownFolders.currentApp().path}/`)); } get canGoBack(): boolean { return this.ios.canGoBack; } get canGoForward(): boolean { return this.ios.canGoForward; } public goBack() { this.ios.goBack(); } public goForward() { this.ios.goForward(); } public reload() { this.ios.reload(); } }