[fpc-pascal] pas2js: registering jQuery Mobile event callback
Michael Van Canneyt
michael at freepascal.org
Thu Jul 18 06:04:45 CEST 2019
On Thu, 18 Jul 2019, Simon Ameis wrote:
> Am 17.07.2019 um 23:46 schrieb Michael Van Canneyt:
>> Several ways, but
>> should work.
> Thanks for the hint to the libjquery unit. This helps to resolve
> However I couldn't find any information on how to access the
> non-standard events via attributes. Thus I create an external class just
> for the "on" method.
Either you declare an external class, or you typecast to
standard 'properties' array.
There is no other way.
The web unit contains a declaration for most HTML elements.
if the events you need are standard HTML elements, the TJSHTMLElement class
or one of its descendents are all you need. if the event is a custom event,
then you need either an external class or the above.
Given that pascal is supposed to be type safe, I would always go for the
external classes approach. It has the additional advantage that the lazarus
code completion will create a handler of the correct signature for you.
with the cursor on @mymethod, invoking code completion (CTRL-SHIFT-C)
will create the method for you with the correct signature.
Saves typing, and you know your handler is correct.
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