11using System ;
2+ using System . Collections . Generic ;
23using System . IO ;
34using Microsoft . Extensions . DependencyInjection ;
45using Microsoft . Extensions . FileProviders ;
56using Microsoft . Maui ;
67using Microsoft . Maui . Dispatching ;
78using Microsoft . Maui . Handlers ;
8- using Tizen . WebView ;
9- using TChromium = Tizen . WebView . Chromium ;
10- using TWebView = Tizen . WebView . WebView ;
9+ using Tizen . NUI ;
10+ using NWebView = Tizen . NUI . BaseComponents . WebView ;
1111
1212namespace Microsoft . AspNetCore . Components . WebView . Maui
1313{
1414 /// <summary>
1515 /// The Tizen <see cref="ViewHandler"/> for <see cref="BlazorWebView"/>.
1616 /// </summary>
17- public partial class BlazorWebViewHandler : ViewHandler < IBlazorWebView , WebViewContainer >
17+ public partial class BlazorWebViewHandler : ViewHandler < IBlazorWebView , NWebView >
1818 {
19+ private const string BlazorWebViewIdentifier = "BlazorWebView:" ;
20+ private const string UserAgentHeaderKey = "User-Agent" ;
1921 private const string AppOrigin = "http://0.0.0.0/" ;
2022 private const string BlazorInitScript = @"
2123 window.__receiveMessageCallbacks = [];
@@ -42,53 +44,99 @@ public partial class BlazorWebViewHandler : ViewHandler<IBlazorWebView, WebViewC
4244 })();
4345 " ;
4446
45- private TizenWebViewManager ? _webviewManager ;
46- private WebViewExtensions . InterceptRequestCallback ? _interceptRequestCallback ;
47+ static private Dictionary < string , WeakReference < BlazorWebViewHandler > > s_webviewHandlerTable = new Dictionary < string , WeakReference < BlazorWebViewHandler > > ( ) ;
4748
48- private TWebView PlatformWebView => PlatformView . WebView ;
49+ private TizenWebViewManager ? _webviewManager ;
4950
5051 private bool RequiredStartupPropertiesSet =>
5152 //_webview != null &&
5253 HostPage != null &&
5354 Services != null ;
5455
5556 /// <inheritdoc />
56- protected override WebViewContainer CreatePlatformView ( )
57+ protected override NWebView CreatePlatformView ( )
5758 {
58- TChromium . Initialize ( ) ;
59- MauiApplication . Current . Terminated += ( s , e ) => TChromium . Shutdown ( ) ;
60-
61- return new WebViewContainer ( PlatformParent ) ;
59+ return new NWebView ( )
60+ {
61+ MouseEventsEnabled = true ,
62+ KeyEventsEnabled = true ,
63+ } ;
6264 }
6365
6466 /// <inheritdoc />
65- protected override void ConnectHandler ( WebViewContainer platformView )
67+ protected override void ConnectHandler ( NWebView platformView )
6668 {
67- _interceptRequestCallback = OnRequestInterceptCallback ;
68- PlatformWebView . LoadFinished += OnLoadFinished ;
69- PlatformWebView . AddJavaScriptMessageHandler ( "BlazorHandler" , PostMessageFromJS ) ;
70- PlatformWebView . SetInterceptRequestCallback ( _interceptRequestCallback ) ;
71- PlatformWebView . GetSettings ( ) . JavaScriptEnabled = true ;
69+ platformView . PageLoadFinished += OnLoadFinished ;
70+ platformView . Context . RegisterHttpRequestInterceptedCallback ( OnRequestInterceptStaticCallback ) ;
71+ platformView . AddJavaScriptMessageHandler ( "BlazorHandler" , PostMessageFromJS ) ;
72+ platformView . UserAgent += $ " { BlazorWebViewIdentifier } { GetHashCode ( ) } " ;
73+ s_webviewHandlerTable [ GetHashCode ( ) . ToString ( ) ] = new WeakReference < BlazorWebViewHandler > ( this ) ;
7274 }
7375
7476 /// <inheritdoc />
75- protected override void DisconnectHandler ( WebViewContainer platformView )
77+ protected override void DisconnectHandler ( NWebView platformView )
7678 {
77- PlatformWebView . LoadFinished -= OnLoadFinished ;
79+ platformView . PageLoadFinished -= OnLoadFinished ;
7880 base . DisconnectHandler ( platformView ) ;
81+ s_webviewHandlerTable . Remove ( GetHashCode ( ) . ToString ( ) ) ;
82+ }
83+
84+
85+ private void PostMessageFromJS ( string message )
86+ {
87+ _webviewManager ! . MessageReceivedInternal ( new Uri ( PlatformView . Url ) , message ) ;
7988 }
8089
81- private void PostMessageFromJS ( JavaScriptMessage message )
90+ private void OnLoadFinished ( object ? sender , WebViewPageLoadEventArgs e )
8291 {
83- if ( message is null )
92+ //FocusManager.Instance.SetCurrentFocusView(NativeView);
93+ var url = PlatformView . Url ;
94+
95+ if ( url == AppOrigin )
96+ PlatformView . EvaluateJavaScript ( BlazorInitScript ) ;
97+ }
98+
99+ private static void OnRequestInterceptStaticCallback ( WebHttpRequestInterceptor interceptor )
100+ {
101+ if ( interceptor . Headers . TryGetValue ( UserAgentHeaderKey , out var agent ) )
84102 {
85- throw new ArgumentNullException ( nameof ( message ) ) ;
103+ var idx = agent . IndexOf ( BlazorWebViewIdentifier ) ;
104+ if ( idx >= 0 )
105+ {
106+ var webviewKey = agent . Substring ( idx + BlazorWebViewIdentifier . Length ) ;
107+ if ( s_webviewHandlerTable . TryGetValue ( webviewKey , out var weakHandler )
108+ && weakHandler . TryGetTarget ( out var handler ) )
109+ {
110+ handler . OnRequestInterceptCallback ( interceptor ) ;
111+ return ;
112+ }
113+ }
86114 }
115+ interceptor . Ignore ( ) ;
116+ }
87117
88- if ( message . Name . Equals ( "BlazorHandler" , StringComparison . Ordinal ) )
118+ private void OnRequestInterceptCallback ( WebHttpRequestInterceptor interceptor )
119+ {
120+ var url = interceptor . Url ;
121+ if ( url . StartsWith ( AppOrigin ) )
89122 {
90- _webviewManager ! . MessageReceivedInternal ( new Uri ( PlatformWebView . Url ) , message . GetBodyAsString ( ) ) ;
123+ var allowFallbackOnHostPage = url . EndsWith ( "/" ) ;
124+ url = QueryStringHelper . RemovePossibleQueryString ( url ) ;
125+ if ( _webviewManager ! . TryGetResponseContentInternal ( url , allowFallbackOnHostPage , out var statusCode , out var statusMessage , out var content , out var headers ) )
126+ {
127+ var header = $ "HTTP/1.0 200 OK\r \n ";
128+ foreach ( var item in headers )
129+ {
130+ header += $ "{ item . Key } :{ item . Value } \r \n ";
131+ }
132+ header += "\r \n " ;
133+ MemoryStream memstream = new MemoryStream ( ) ;
134+ content . CopyTo ( memstream ) ;
135+ interceptor . SetResponse ( header , memstream . ToArray ( ) ) ;
136+ return ;
137+ }
91138 }
139+ interceptor . Ignore ( ) ;
92140 }
93141
94142 private void StartWebViewCoreIfPossible ( )
@@ -105,14 +153,14 @@ private void StartWebViewCoreIfPossible()
105153
106154 // We assume the host page is always in the root of the content directory, because it's
107155 // unclear there's any other use case. We can add more options later if so.
108- var contentRootDir = Path . GetDirectoryName ( HostPage ! ) ?? string . Empty ;
109- var hostPageRelativePath = Path . GetRelativePath ( contentRootDir , HostPage ! ) ;
156+ var contentRootDir = System . IO . Path . GetDirectoryName ( HostPage ! ) ?? string . Empty ;
157+ var hostPageRelativePath = System . IO . Path . GetRelativePath ( contentRootDir , HostPage ! ) ;
110158
111159 var fileProvider = VirtualView . CreateFileProvider ( contentRootDir ) ;
112160
113161 _webviewManager = new TizenWebViewManager (
114162 this ,
115- PlatformWebView ,
163+ PlatformView ,
116164 Services ! ,
117165 new MauiDispatcher ( Services ! . GetRequiredService < IDispatcher > ( ) ) ,
118166 fileProvider ,
@@ -125,7 +173,7 @@ private void StartWebViewCoreIfPossible()
125173 VirtualView . BlazorWebViewInitializing ( new BlazorWebViewInitializingEventArgs ( ) ) ;
126174 VirtualView . BlazorWebViewInitialized ( new BlazorWebViewInitializedEventArgs
127175 {
128- WebView = PlatformWebView ,
176+ WebView = PlatformView ,
129177 } ) ;
130178
131179 if ( RootComponents != null )
@@ -139,50 +187,6 @@ private void StartWebViewCoreIfPossible()
139187 _webviewManager . Navigate ( "/" ) ;
140188 }
141189
142- private void OnRequestInterceptCallback ( IntPtr context , IntPtr request , IntPtr userdata )
143- {
144- if ( request == IntPtr . Zero )
145- {
146- return ;
147- }
148-
149- var url = PlatformWebView . GetInterceptRequestUrl ( request ) ;
150-
151- if ( url . StartsWith ( AppOrigin ) )
152- {
153- var allowFallbackOnHostPage = url . EndsWith ( "/" ) ;
154- url = QueryStringHelper . RemovePossibleQueryString ( url ) ;
155- if ( _webviewManager ! . TryGetResponseContentInternal ( url , allowFallbackOnHostPage , out var statusCode , out var statusMessage , out var content , out var headers ) )
156- {
157- var header = $ "HTTP/1.0 200 OK\r \n ";
158- foreach ( var item in headers )
159- {
160- header += $ "{ item . Key } :{ item . Value } \r \n ";
161- }
162- header += "\r \n " ;
163-
164- using ( MemoryStream memstream = new MemoryStream ( ) )
165- {
166- content . CopyTo ( memstream ) ;
167- var body = memstream . ToArray ( ) ;
168- PlatformWebView . SetInterceptRequestResponse ( request , header , body , ( uint ) body . Length ) ;
169- }
170- return ;
171- }
172- }
173-
174- PlatformWebView . IgnoreInterceptRequest ( request ) ;
175- }
176-
177- private void OnLoadFinished ( object ? sender , EventArgs e )
178- {
179- PlatformWebView . SetFocus ( true ) ;
180- var url = PlatformWebView . Url ;
181-
182- if ( url == AppOrigin )
183- PlatformWebView . Eval ( BlazorInitScript ) ;
184- }
185-
186190 internal IFileProvider CreateFileProvider ( string contentRootDir )
187191 {
188192 return new TizenMauiAssetFileProvider ( contentRootDir ) ;
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