Communicate CEF Browser to js and viceversa

[Francisco José Raga López]

Hi.

Is possible return value to cefpython frim js.

The methid is so simple,my js function is:

<script>

var act_yaw;

function GetActualYaw(){

//alert("Alert!!");

return act_yaw;

}

</script>

And in my python code:

self.view.browser.GetMainFrame().ExecuteFunction("GetActualYaw")

How  is possible get the "act_yaw" value in my python code??Or maybe call python function from browser?

regards

[Czarek Tomczak]

The new examples in the examples/ directory don't have this functionality yet. You can take a look at the unit tests however:
1. Set bindings: https://github.com/cztomczak/cefpython/blob/81a85587af589d591983cfc29f580c8094fd6b6e/unittests/main_test.py#L128
2. JS code: https://github.com/cztomczak/cefpython/blob/81a85587af589d591983cfc29f580c8094fd6b6e/unittests/main_test.py#L25
3. Python code: https://github.com/cztomczak/cefpython/blob/81a85587af589d591983cfc29f580c8094fd6b6e/unittests/main_test.py#L285

There is also the old wxpython.py example with the most feaures tested: https://github.com/cztomczak/cefpython/blob/cefpython55/src/linux/binaries_64bit/deprecated/wxpython.py

I have recently created docs/Tutorial.md document (still under works) and javascript integration topic will be explained in that tutorial in the near future.

[Czarek Tomczak]

See also JavascriptBindings.md API doc: https://github.com/cztomczak/cefpython/blob/cefpython55/api/JavascriptBindings.md

[Francisco José Raga López]

Thanks for your help,but finally use a hilarious trick,but work fine.

Is so simple,in my js code have this:

var viewChangeHandler = function() {
    var yaw = view.yaw();
 var act_yaw=yaw;
 var d_yaw=yaw/(Math.PI/180)
 console.log(d_yaw);
  };

And in my python code:

#CefPython Event      
class ClientHandler():
    #hilarious method but work
    def OnConsoleMessage(self, browser, message, source, line):
        source = config.DEFAULT_URL
        Geo360Dialog.ActualOrientation(yaw=message)
        return

Then I obtain the return value.

[Francisco José Raga López]

Full exampe code in my github.

https://github.com/All4Gis/EquirectangularViewer

[Felipe Torresini]

I wonder if that's equivalent, but in a generic way?

python

isLocal = False

def doStuff():
pass

def connects():
pass

class MyClass():
def __init__(self):
pass
def myMethodGetsClientFn(clientSideMethodName = None):
if clientSideMethodName is not None:
connects()
else:
doStuff()
#interface
class ClientHandler():
# generic method: gets messages from console.log in javascript client side
# browser: is the object wich we must to return from create CreateBrowserSync method
# message: the message sent from javascript
# source: the source from the message (if it comes from a file or from url- the url passed to CreateBrowserSync(settings, url="http:/bla/index.html") )
# line : no idea

def OnConsoleMessage(self, browser, message, source, line):

#source receives from config the url
source = config.DEFAULT_URL
MyClass.myMethodGetsClientFn(fnToSendAsStr = messageFromFunction)

return
js
fnToSendAsStr = function(){

return "fnInPython"+ ":" + "param1" + "param2" + "paramList" ;
};

my_js_method = """
var my_js_callback = function() {

console.log(fnToSendAsStr);
};