Re: GJS WebKit2 Extension

[Andrea Giammarchi <andrea giammarchi gmail com>]

FWIW I've used the location with a private channel as protocol to intercept calls to/from the page and GJS.

https://github.com/WebReflection/jsgtk-twitter/blob/master/app#L162-L175

The channel is a random string: https://github.com/WebReflection/jsgtk-twitter/blob/master/app#L59

From the page, which is aware of the "secret" channel, I call GJS actions via location.href = "">

The protocol secret1234 is intercepted and the `controller.method(JSON.parse(decodeURIComponent(restOfURI)))` invoked.

To signal the page everything is fine I use this.webView.runJavaScript https://github.com/WebReflection/jsgtk-twitter/blob/master/app#L377

The page has a listener for the `secret1234` event on the main window, and such listener is instrumented to react accordingly with the CustomEvent .detail payload/info.

This might look a bit convoluted, and it has JSON serialization as limitation for the kind of data you want to pass (i.e. I use base64 encoded images as source from remotely fetched files enabling somehow CORS for whatever I want) but it worked well, circumventing the missing communication channel available in Qt.

Maybe today there are better ways for doing a similar thing and if that's the case, please share.

Thanks.

On Wed, Oct 11, 2017 at 12:57 PM, Adriano Patrizio <adriano patrizio hotmail com> wrote:

Thank you for response, this is my problem: have necessity to implement methods into my web application webkit2 based and comunicate with GJS script (example: filesystem functions to read and write files or window managment).

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