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[webview_flutter_wkwebview] Implement Dart side of Flutter Apis #5933

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merged 11 commits into from
Jun 8, 2022
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[webview_flutter_wkwebview] Implement Dart side of Flutter Apis #5933

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8a9cf2b
new pigeon code
bparrishMines Jun 7, 2022
fccd9d6
webkit flutter apis
bparrishMines Jun 7, 2022
adf9875
foundation flutter apis
bparrishMines Jun 7, 2022
3a6f373
add to flutter apis
bparrishMines Jun 7, 2022
f9a197b
navigation tests
bparrishMines Jun 7, 2022
5c05bbf
other webkit tests
bparrishMines Jun 7, 2022
d10c8a7
nsobject test
bparrishMines Jun 7, 2022
4bea16a
silly late initialization
bparrishMines Jun 7, 2022
37c1c54
fix webview parameter in uidelegate
bparrishMines Jun 8, 2022
eec92f9
name fix
bparrishMines Jun 8, 2022
c35b9e7
formatting
bparrishMines Jun 8, 2022
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webkit flutter apis
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@bparrishMines
bparrishMines committed Jun 7, 2022
commit fccd9d67b750b64a3b7b0332e08ed5ddc84ff7bd
195 changes: 195 additions & 0 deletions packages/webview_flutter/webview_flutter_wkwebview/lib/src/web_kit/web_kit_api_impls.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,16 @@ extension _NSHttpCookieConverter on NSHttpCookie {
}
}

extension _WKNavigationActionPolicyConverter on WKNavigationActionPolicy {
WKNavigationActionPolicyEnumData toWKNavigationActionPolicyEnumData() {
return WKNavigationActionPolicyEnumData(
value: WKNavigationActionPolicyEnum.values.firstWhere(
(WKNavigationActionPolicyEnum element) => element.name == name,
),
);
}
}

extension _NSHttpCookiePropertyKeyConverter on NSHttpCookiePropertyKey {
NSHttpCookiePropertyKeyEnumData toNSHttpCookiePropertyKeyEnumData() {
late final NSHttpCookiePropertyKeyEnum value;
Expand Down Expand Up @@ -154,6 +164,48 @@ Iterable<WKAudiovisualMediaTypeEnumData> _toWKAudiovisualMediaTypeEnumData(
});
}

extension _NavigationActionDataConverter on WKNavigationActionData {
WKNavigationAction toNavigationAction() {
return WKNavigationAction(
request: request.toNSUrlRequest(),
targetFrame: targetFrame.toWKFrameInfo(),
);
}
}

extension _WKFrameInfoDataConverter on WKFrameInfoData {
WKFrameInfo toWKFrameInfo() {
return WKFrameInfo(isMainFrame: isMainFrame);
}
}

extension _NSUrlRequestDataConverter on NSUrlRequestData {
NSUrlRequest toNSUrlRequest() {
return NSUrlRequest(
url: url,
httpBody: httpBody,
httpMethod: httpMethod,
allHttpHeaderFields: allHttpHeaderFields.cast(),
);
}
}

extension _WKNSErrorDataConverter on NSErrorData {
NSError toNSError() {
return NSError(
domain: domain,
code: code,
localizedDescription: localiziedDescription,
);
}
}

extension _WKScriptMessageDataConverter on WKScriptMessageData {
WKScriptMessage toWKScriptMessage() {
return WKScriptMessage(name: name, body: body);
}
}
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We really need the ability to use existing classes as Pigeon data classes :(

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@bparrishMines bparrishMines Jun 8, 2022 •
edited
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I agree. I think we could use the enums and data classes generated from pigeon if flutter/flutter#53191 was implemented. This would save us alot of code.


extension _WKUserScriptConverter on WKUserScript {
WKUserScriptData toWKUserScriptData() {
return WKUserScriptData(
Expand Down Expand Up @@ -282,6 +334,36 @@ class WKScriptMessageHandlerHostApiImpl extends WKScriptMessageHandlerHostApi {
}
}

/// Flutter api implementation for [WKScriptMessageHandler].
class WKScriptMessageHandlerFlutterApiImpl
extends WKScriptMessageHandlerFlutterApi {
/// Constructs a [WKScriptMessageHandlerFlutterApiImpl].
WKScriptMessageHandlerFlutterApiImpl({InstanceManager? instanceManager}) {
this.instanceManager = instanceManager ?? NSObject.globalInstanceManager;
}

/// Maintains instances stored to communicate with native language objects.
late final InstanceManager instanceManager;

WKScriptMessageHandler _getHandler(int identifier) {
return instanceManager.getInstanceWithWeakReference(identifier)!;
}

@override
void didReceiveScriptMessage(
int identifier,
int userContentControllerIdentifier,
WKScriptMessageData message,
) {
_getHandler(identifier).didReceiveScriptMessage(
instanceManager.getInstanceWithWeakReference(
userContentControllerIdentifier,
)! as WKUserContentController,
message.toWKScriptMessage(),
);
}
}

/// Host api implementation for [WKPreferences].
class WKPreferencesHostApiImpl extends WKPreferencesHostApi {
/// Constructs a [WKPreferencesHostApiImpl].
Expand Down Expand Up @@ -492,6 +574,36 @@ class WKUIDelegateHostApiImpl extends WKUIDelegateHostApi {
}
}

/// Flutter api implementation for [WKUIDelegate].
class WKUIDelegateFlutterApiImpl extends WKUIDelegateFlutterApi {
/// Constructs a [WKUIDelegateFlutterApiImpl].
WKUIDelegateFlutterApiImpl({InstanceManager? instanceManager}) {
this.instanceManager = instanceManager ?? NSObject.globalInstanceManager;
}

/// Maintains instances stored to communicate with native language objects.
late final InstanceManager instanceManager;

WKUIDelegate _getDelegate(int identifier) {
return instanceManager.getInstanceWithWeakReference(identifier)!;
}

@override
void onCreateWebView(
int identifier,
int configurationIdentifier,
WKNavigationActionData navigationAction,
) {
final void Function(WKWebViewConfiguration, WKNavigationAction)? function =
_getDelegate(identifier).onCreateWebView;
function?.call(
instanceManager.getInstanceWithWeakReference(configurationIdentifier)!
as WKWebViewConfiguration,
navigationAction.toNavigationAction(),
);
}
}

/// Host api implementation for [WKNavigationDelegate].
@immutable
class WKNavigationDelegateHostApiImpl extends WKNavigationDelegateHostApi {
Expand Down Expand Up @@ -558,6 +670,89 @@ class WKNavigationDelegateFlutterApiImpl
url,
);
}

@override
Future<WKNavigationActionPolicyEnumData> decidePolicyForNavigationAction(
int identifier,
int webViewIdentifier,
WKNavigationActionData navigationAction,
) async {
final Future<WKNavigationActionPolicy> Function(
WKWebView,
WKNavigationAction navigationAction,
)? function = _getDelegate(identifier).decidePolicyForNavigationAction;

if (function == null) {
return WKNavigationActionPolicyEnumData(
value: WKNavigationActionPolicyEnum.allow,
);
}

final WKNavigationActionPolicy policy = await function(
instanceManager.getInstanceWithWeakReference(webViewIdentifier)!
as WKWebView,
navigationAction.toNavigationAction(),
);
return policy.toWKNavigationActionPolicyEnumData();
}

@override
void didFailNavigation(
int identifier,
int webViewIdentifier,
NSErrorData error,
) {
final void Function(WKWebView, NSError)? function =
_getDelegate(identifier).didFailNavigation;
function?.call(
instanceManager.getInstanceWithWeakReference(webViewIdentifier)!
as WKWebView,
error.toNSError(),
);
}

@override
void didFailProvisionalNavigation(
int identifier,
int webViewIdentifier,
NSErrorData error,
) {
final void Function(WKWebView, NSError)? function =
_getDelegate(identifier).didFailProvisionalNavigation;
function?.call(
instanceManager.getInstanceWithWeakReference(webViewIdentifier)!
as WKWebView,
error.toNSError(),
);
}

@override
void didStartProvisionalNavigation(
int identifier,
int webViewIdentifier,
String? url,
) {
final void Function(WKWebView, String?)? function =
_getDelegate(identifier).didStartProvisionalNavigation;
function?.call(
instanceManager.getInstanceWithWeakReference(webViewIdentifier)!
as WKWebView,
url,
);
}

@override
void webViewWebContentProcessDidTerminate(
int identifier,
int webViewIdentifier,
) {
final void Function(WKWebView)? function =
_getDelegate(identifier).webViewWebContentProcessDidTerminate;
function?.call(
instanceManager.getInstanceWithWeakReference(webViewIdentifier)!
as WKWebView,
);
}
}

/// Host api implementation for [WKWebView].
Expand Down