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[webview_flutter_wkwebview] Add webkit interface for showing javascript alert message #4555

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[webview_flutter_wkwebview] Add webkit interface for showing javascript alert message #4555

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2aae4b2
Add webkit interface for showing javascript alert message
jsharp83 Jul 24, 2023
7e5f853
Add generated code after running pigeon
jsharp83 Jul 24, 2023
7847fb2
Add example on main.dart
jsharp83 Jul 24, 2023
79f4b4f
Update changelog and version
jsharp83 Jul 25, 2023
60fd817
add runJavaScriptPanel argument in tests
jsharp83 Jul 25, 2023
2a1b164
Add javascript alert example on android project
jsharp83 Jul 27, 2023
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31 changes: 31 additions & 0 deletions packages/webview_flutter/webview_flutter_android/example/lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -73,6 +73,25 @@ const String kTransparentBackgroundPage = '''
</html>
''';

const String kAlertTestPage = '''
<html>
<head>
<script type = "text/javascript">
function showAlert() {
alert ("This is an alert dialog box");
}
</script>
</head>

<body>
<p> Click the following button to see the effect </p>
<form>
<input type = "button" value = "Click me" onclick = "showAlert();" />
</form>
</body>
</html>
''';

class WebViewExample extends StatefulWidget {
const WebViewExample({super.key, this.cookieManager});

Expand Down Expand Up @@ -201,6 +220,7 @@ enum MenuOptions {
loadHtmlString,
transparentBackground,
setCookie,
javaScriptAlert
}

class SampleMenu extends StatelessWidget {
Expand Down Expand Up @@ -261,6 +281,9 @@ class SampleMenu extends StatelessWidget {
case MenuOptions.setCookie:
_onSetCookie();
break;
case MenuOptions.javaScriptAlert:
_onJavaScriptAlertExample(context);
break;
}
},
itemBuilder: (BuildContext context) => <PopupMenuItem<MenuOptions>>[
Expand Down Expand Up @@ -317,6 +340,10 @@ class SampleMenu extends StatelessWidget {
value: MenuOptions.transparentBackground,
child: Text('Transparent background example'),
),
const PopupMenuItem<MenuOptions>(
value: MenuOptions.javaScriptAlert,
child: Text('JavaScript Alert Example'),
),
],
);
}
Expand Down Expand Up @@ -441,6 +468,10 @@ class SampleMenu extends StatelessWidget {
return webViewController.loadHtmlString(kTransparentBackgroundPage);
}

Future<void> _onJavaScriptAlertExample(BuildContext context) {
return webViewController.loadHtmlString(kAlertTestPage);
}

Widget _getCookieList(String cookies) {
if (cookies == '""') {
return Container();
Expand Down
5 changes: 5 additions & 0 deletions packages/webview_flutter/webview_flutter_wkwebview/CHANGELOG.md
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Original file line number Diff line number Diff line change
@@ -1,3 +1,8 @@
## 3.7.3

* Add webkit interface for showing javascript alert message


## 3.7.2

* Fixes bug where `PlatformWebViewWidget` doesn't rebuild when the controller changes.
Expand Down
52 changes: 51 additions & 1 deletion packages/webview_flutter/webview_flutter_wkwebview/example/lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,25 @@ const String kTransparentBackgroundPage = '''
</html>
''';

const String kAlertTestPage = '''
<html>
<head>
<script type = "text/javascript">
function showAlert() {
alert ("This is an alert dialog box");
}
</script>
</head>

<body>
<p> Click the following button to see the effect </p>
<form>
<input type = "button" value = "Click me" onclick = "showAlert();" />
</form>
</body>
</html>
''';

class WebViewExample extends StatefulWidget {
const WebViewExample({super.key, this.cookieManager});

Expand Down Expand Up @@ -202,6 +221,7 @@ enum MenuOptions {
loadHtmlString,
transparentBackground,
setCookie,
javaScriptAlert,
}

class SampleMenu extends StatelessWidget {
Expand Down Expand Up @@ -262,6 +282,9 @@ class SampleMenu extends StatelessWidget {
case MenuOptions.setCookie:
_onSetCookie();
break;
case MenuOptions.javaScriptAlert:
_onJavaScriptAlertExample(context);
break;
}
},
itemBuilder: (BuildContext context) => <PopupMenuItem<MenuOptions>>[
Expand Down Expand Up @@ -318,6 +341,10 @@ class SampleMenu extends StatelessWidget {
value: MenuOptions.transparentBackground,
child: Text('Transparent background example'),
),
const PopupMenuItem<MenuOptions>(
value: MenuOptions.javaScriptAlert,
child: Text('JavaScript Alert Example'),
),
],
);
}
Expand Down Expand Up @@ -433,7 +460,7 @@ class SampleMenu extends StatelessWidget {
Future<void> _onLoadFlutterAssetExample() {
return webViewController.loadFlutterAsset('assets/www/index.html');
}

Future<void> _onLoadHtmlStringExample() {
return webViewController.loadHtmlString(kLocalExamplePage);
}
Expand All @@ -442,6 +469,17 @@ class SampleMenu extends StatelessWidget {
return webViewController.loadHtmlString(kTransparentBackgroundPage);
}

Future<void> _onJavaScriptAlertExample(BuildContext context) {
if(webViewController is WebKitWebViewController) {
final webKitWebViewController = webViewController as WebKitWebViewController;
webKitWebViewController.setJavaScriptAlertPanelCallback((message) async {
return _showAlert(context, message);
});
}

return webViewController.loadHtmlString(kAlertTestPage);
}

Widget _getCookieList(String cookies) {
if (cookies == '""') {
return Container();
Expand All @@ -466,6 +504,18 @@ class SampleMenu extends StatelessWidget {

return indexFile.path;
}

Future<void> _showAlert(BuildContext context, String message) async {
return showDialog(context: context, builder: (BuildContext ctx) {
return AlertDialog(content: Text(message),
actions: [
TextButton(onPressed: () {
Navigator.of(ctx).pop();
}, child: const Text('OK'))
],
);
});
}
}

class NavigationControls extends StatelessWidget {
Expand Down
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