Execute Javascript callback from WKWebView
I need to execute a javascript callback function every time a new URL is loaded in WKWebview. The following is the JavaScript function:
networkRequestCallback: function(callback) {
exec(callback, null, 'IonicWebView', 'networkRequestCallback', );
}
Now, I did know the place to trigger it in WKWebview, which is in webView:decidePolicyForNavigationAction:decisionHandler: but I am not sure what code to execute the above JavaScript.
So for I came up with these 2 (not sure if its the right way):
1.
NSString *exec_template = @"networkRequestCallback("received: %@");";
NSString *exec = [NSString stringWithFormat:exec_template, version];
[_webView evaluateJavaScript:exec completionHandler:nil];
2.
JSContext *tmpContext = [webView valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"];
[tmpContext[@"networkRequestCallback"] callWithArguments:@[@urlPath]];
I do know if the JavaScript function is not a callback type (e.g. func myFunction() {}), 1. can be used, but is it possible for function with callback handler?
Any ideas would be greatly appreciated.
objective-c wkwebview
asked Nov 23 '18 at 14:35
JohnJohn
3672619
add a comment |
I need to execute a javascript callback function every time a new URL is loaded in WKWebview. The following is the JavaScript function:
networkRequestCallback: function(callback) {
exec(callback, null, 'IonicWebView', 'networkRequestCallback', );
}
Now, I did know the place to trigger it in WKWebview, which is in webView:decidePolicyForNavigationAction:decisionHandler: but I am not sure what code to execute the above JavaScript.
So for I came up with these 2 (not sure if its the right way):
1.
NSString *exec_template = @"networkRequestCallback("received: %@");";
NSString *exec = [NSString stringWithFormat:exec_template, version];
[_webView evaluateJavaScript:exec completionHandler:nil];
2.
JSContext *tmpContext = [webView valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"];
[tmpContext[@"networkRequestCallback"] callWithArguments:@[@urlPath]];
I do know if the JavaScript function is not a callback type (e.g. func myFunction() {}), 1. can be used, but is it possible for function with callback handler?
Any ideas would be greatly appreciated.
objective-c wkwebview
asked Nov 23 '18 at 14:35
JohnJohn
3672619
add a comment |
I need to execute a javascript callback function every time a new URL is loaded in WKWebview. The following is the JavaScript function:
networkRequestCallback: function(callback) {
exec(callback, null, 'IonicWebView', 'networkRequestCallback', );
}
Now, I did know the place to trigger it in WKWebview, which is in webView:decidePolicyForNavigationAction:decisionHandler: but I am not sure what code to execute the above JavaScript.
So for I came up with these 2 (not sure if its the right way):
1.
NSString *exec_template = @"networkRequestCallback("received: %@");";
NSString *exec = [NSString stringWithFormat:exec_template, version];
[_webView evaluateJavaScript:exec completionHandler:nil];
2.
JSContext *tmpContext = [webView valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"];
[tmpContext[@"networkRequestCallback"] callWithArguments:@[@urlPath]];
I do know if the JavaScript function is not a callback type (e.g. func myFunction() {}), 1. can be used, but is it possible for function with callback handler?
Any ideas would be greatly appreciated.
objective-c wkwebview
asked Nov 23 '18 at 14:35
JohnJohn
3672619
I need to execute a javascript callback function every time a new URL is loaded in WKWebview. The following is the JavaScript function:
networkRequestCallback: function(callback) {
exec(callback, null, 'IonicWebView', 'networkRequestCallback', );
}
Now, I did know the place to trigger it in WKWebview, which is in webView:decidePolicyForNavigationAction:decisionHandler: but I am not sure what code to execute the above JavaScript.
So for I came up with these 2 (not sure if its the right way):
1.
NSString *exec_template = @"networkRequestCallback("received: %@");";
NSString *exec = [NSString stringWithFormat:exec_template, version];
[_webView evaluateJavaScript:exec completionHandler:nil];
2.
JSContext *tmpContext = [webView valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"];
[tmpContext[@"networkRequestCallback"] callWithArguments:@[@urlPath]];
I do know if the JavaScript function is not a callback type (e.g. func myFunction() {}), 1. can be used, but is it possible for function with callback handler?
Any ideas would be greatly appreciated.
objective-c wkwebview
objective-c wkwebview
asked Nov 23 '18 at 14:35
JohnJohn
3672619
asked Nov 23 '18 at 14:35
JohnJohn
3672619
asked Nov 23 '18 at 14:35
JohnJohn
3672619
asked Nov 23 '18 at 14:35
JohnJohn
3672619
asked Nov 23 '18 at 14:35
JohnJohn
3672619
3672619
add a comment |
add a comment |
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