Hi,
thank you for all of your replies and constructive ideas on this topic.
I guess without this feedback our solution would look completely
different. Let me summarize some of the discussion and explain what we
plan to do.
Locale Switch:
I was surprised that so many of you actually use it and really like to
keep this feature. Especially the kiosk like application Maria Siebert
described, would be hard to do without. Our concern was mainly
performance and maintainability. I think we can improve both without
cutting this feature. What we plan to do is:
1. Introduce a variant "qx.dynamicLocaleSwitch", which controls whether
dynamic locale switching can be used. The variant defaults to "off". In
this mode no additional performance/memory overhead is there. If it is
turned on the memory consumption is about the same as it is now.
2. Get rid of the LocalizedString. Instead we use a trick to attach the
information to retranslate a string to the translated string object.
This is best explained with a snipplet of code:
txt = new String(txt);
txt.args = args;
txt.messageId = messageId;
This way we can work with normal strings everywhere and don't have to
differentiate between LocalizedString and normal strings. We can just
listen for locale changes, then check, whether the string property has a
"messageId" field and retranslate the property if needed. This is
totally unobtrusive for the rest of the widget code.
Theme switch:
There were significantly less posts supporting the theme switch. Most of
you said something like "It is a cool feature but in production it does
not have much value". The memory impacts of supporting dynamic theme
switching is much larger than for the locale switch so still advocate
for removing this feature.
Maybe we can later investigate Ralf's idea of iterating over all objects
and look for dynamic properties on a theme switch. This could remove the
memory overhead but would slow down the theme switch. Right now I have
no idea how feasible this approach is.
Best Fabian
--
Fabian Jakobs
JavaScript Framework Developer
1&1 Internet AG
Brauerstraße 48
76135 Karlsruhe
Amtsgericht Montabaur HRB 6484
Vorstand: Henning Ahlert, Ralph Dommermuth, Matthias Ehrlich, Thomas
Gottschlich, Matthias Greve, Robert Hoffmann, Markus Huhn, Oliver Mauss, Achim
Weiss
Aufsichtsratsvorsitzender: Michael Scheeren
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