How to catch complex events?(Hurry!)

[sleepinglord]

An example: I have a select input. I wanna catch those onclick events
which is not a onchange events. How to implement it?

And in general, there's some basic kinds of events, and I wanna catch
the events which is a composition of the basic events. How to?

Where can I find some examples£¿

[Randy Webb]

sleepinglord said the following on 5/7/2006 9:58 PM:

An example: I have a select input. I wanna catch those onclick events
which is not a onchange events. How to implement it?
What is the event you want to catch?
And in general, there's some basic kinds of events, and I wanna catch
the events which is a composition of the basic events. How to?
What composition of events? You basically catch one and then catch
another, but the second is dependent on the first.
Where can I find some examples£¿

Examples of what?

--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/

[RobG]

sleepinglord wrote:

An example: I have a select input. I wanna catch those onclick events
which is not a onchange events. How to implement it?

And in general, there's some basic kinds of events, and I wanna catch
the events which is a composition of the basic events. How to?

Where can I find some examples£¿

You should probably start with the Mozilla Gecko DOM reference - it has
examples and links to the relevant parts of the specification:

<URL:http://developer.mozil la.org/en/docs/DOM:element#Eve nt_Handlers>
You could also look at quirksmode for some differences between the IE
and W3C event models (there are several pages):

<URL:http://www.quirksmode. org/js/introevents.htm l>
--
Rob

[sleepinglord]

What is the event you want to catch?
I wanna catch the event which is an onclick event but not an onchange
event.

What composition of events? You basically catch one and then catch
another, but the second is dependent on the first.

Suppose there're 3 kinds of event, onA, onB, onC;
For example, I wanna do something when onA and onB happen, but onC not.
Such a situation is what I called events composition. It's just like s
logical operation on those events.
And In general. How to implement such operations?

[Randy Webb]

sleepinglord said the following on 5/8/2006 4:48 AM:

Your quoting style leaves some to be desired.

If you want to post a followup via groups.google.c om, don't use the
"Reply" link at the bottom of the article. Click on "show options" at
the top of the article, then click on the "Reply" at the bottom of the
article headers.

<URL: http://www.safalra.com/special/googlegroupsreply/ >

<quoting fixed best as I care to fix it>

Randy Webb said the following on 5/8/2006 12:04 AM:
What is the event you want to catch?

I wanna catch the event which is an onclick event but not an onchange
event.

You can't with a select list. You can catch it in Mozilla and Opera by
adding an onclick to the Option but IE doesn't support onclick of the
Option or Select.

What composition of events? You basically catch one and then catch
another, but the second is dependent on the first.

Suppose there're 3 kinds of event, onA, onB, onC;
For example, I wanna do something when onA and onB happen, but onC not.
Such a situation is what I called events composition. It's just like s
logical operation on those events.

onchange="var myChange=true;a lert('onchange fired')"
onclick="if (!myChange){ale rt('Click without change'}
else{alert('Cli ck with Change')"

That would be the basic idea. You set a variable for each event handler
and check that variable in other events.

--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/

[sleepinglord]

Thanks a lot!
Randy Webb 写�：

sleepinglord said the following on 5/8/2006 4:48 AM:

Your quoting style leaves some to be desired.

If you want to post a followup via groups.google.c om, don't use the
"Reply" link at the bottom of the article. Click on "show options" at
the top of the article, then click on the "Reply" at the bottom of the
article headers.

<URL: http://www.safalra.com/special/googlegroupsreply/ >

<quoting fixed best as I care to fix it>

Randy Webb said the following on 5/8/2006 12:04 AM:
What is the event you want to catch?

I wanna catch the event which is an onclick event but not an onchange
event.

You can't with a select list. You can catch it in Mozilla and Opera by
adding an onclick to the Option but IE doesn't support onclick of the
Option or Select.

What composition of events? You basically catch one and then catch
another, but the second is dependent on the first.

Suppose there're 3 kinds of event, onA, onB, onC;
For example, I wanna do something when onA and onB happen, but onC not.
Such a situation is what I called events composition. It's just like s
logical operation on those events.

onchange="var myChange=true;a lert('onchange fired')"
onclick="if (!myChange){ale rt('Click without change'}
else{alert('Cli ck with Change')"

That would be the basic idea. You set a variable for each event handler
and check that variable in other events.

--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/