Damjan,
Thanks once more for your help.
You pointed me in the right direction.
On 02/24/2011 12:25 AM, Ian Kelly wrote:
> On Wed, Feb 23, 2011 at 4:02 PM, Gelonida <gelon...@gmail.com> wrote:
>>> so make a Python object with some methods you'd wish to call, then
>>> evaluate some small JS that will bind the click event on your element to
>>> the method of the Python object.
>>>
>>
>> OK, but how do I make sure, that I don't override an existing binding to
>> the element's click() event?
>
> If the element has an existing binding, then create a new JS function
> that calls both the Python method and the original event handler, and
> bind that function to the event.
Not sure if it can be done easier, but what I roughly do now is:
top_frame = page.mainFrame()
my_qt_object = MyQtObject()
top_frame.addToJavaScriptWindowObject("pyObj", my_qt_object)
field = top_frame.findFirstElement(path)
js_inject_after = """{
var that = this;
var prev_action = this.%(evt)s;
if (prev_action == null){
prev_action = function(){};
}
this.%(evt)s = function(){
prev_action();
%(action)s;
};
}"""
prms = dict(
evt="onclick",
action=""" pyObj.action(that.id+ "clicked"); """
)
field.evaluateJavaScript(js_inject_after % prms)
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