How to get JS function result value

[carlosb007]

In order to call a javascript function and get the result value back I either use 'alert' and get the response through handle_jsalert or use a registered V8 extension function. In any case there's the need to call execute_java_script and then cef_do_message_loop_work to have the handle callback being executed, but cef_do_message_loop_work causes the application message loop to be processed too which is causing me some unwanted behaviour.

Any tip on how to execute a JS function, get the result value back and don't have the application message loop being processed in the meantime? I may be missing some obvious solution...

[magreenblatt]

Hi Carlos,

JavaScript will not be executed unless the message loop runs due to the logical reason that the JavaScript needs to be run . Perhaps if you tell us the end goal of what you're trying to achieve we can suggest a different approach.

Regards,
Marshall

[carlosb007]

It makes sense Just wondering if it's really necessary to process non-cef control messages on the application message queue to have javascript run.

Thing is that I have situations where when I execute javascript then call cef_do_message_loop_work it will process pending messages which will in it's turn delete the cef control. Anyway I've changed the code to prevent any actions over a cef control while it's running inside a call to cef_do_message_loop_work so I've got things working fine, not a major obstacle but a bit hassle.

Please be aware I haven't take a look into the CEF control source code, I'm plainly using it's C API interface and mostly ignoring it's inner workings.

btw. Thanks for your AWESOME WORK!!! It's excellent to have Chromium so neatly embeddable using a plain C interface.