[Qt-interest] HTML document + Qt widgets: options ?

Stephen Collyer scollyer at netspinner.co.uk
Fri May 21 13:20:11 CEST 2010


On 21 May 2010 09:37, Stephen Collyer <scollyer at netspinner.co.uk> wrote:

> On 21 May 2010 09:14, David Boddie <david.boddie at nokia.com> wrote:
>
>> On Friday 21 May 2010 09:57:40, Stephen Collyer wrote:
>> > On 20 May 2010 20:46, Richard Moore <richmoore44 at gmail.com> wrote:
>>
>> >> I explained the former in this post
>> >> http://www.kdedevelopers.org/node/4008
>> >>
>> >>
>> > Thanks. That looks fairly straightforward. However, it's not
>> > clear to me how the widget generated by PluginFactory::create()
>> > can communicate with the app. outside the HTML in which it
>> > is embedded. How does one connect signals from the widget,
>> > for example ?
>>
>> Although it's been a while since I looked at it, I think this might be
>> covered in a Qt Quarterly article:
>>
>>  http://doc.qt.nokia.com/qq/qq26-webplugin.html#bridgingthegap
>>
>>
> Thanks. That's pretty useful in itself, but it doesn't decribe the
> case thar I'm interested in. It only shows how to connect an
> embedded widget to a JS function in the page.
>
> However, I can see a horrible hack that may work which is
> to subclass the widget of interest,  and in PluginFactory::create(),
> pass a comms object (a QSignalMapper ?) from the outside
> world to the ctor of the subclassed widget. Then use the comms
> object to relay signals to the rest of the app. by connecting
> the signals of interest in the ctor of the subclassed widget. e.g.
>

Scratch this: we can simply access the widgets we create
through a suitable method in our PluginFactory class if we
need them in the rest of the app.

-- 
Stephen Collyer
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