[jQuery] Re: I thought I understood threads...Works in Opera
Sorry to be replying to my own threads, but this just gets more interesting.
Apparently, in IE and Firefox, the function must run to completion before
the UI is updated with any CSS / DOM changes, but in Opera, the UI is
updated immediately upon the jQ call.
I was trying to get a 'waiting' gif to appear at the beginning of a long
function call, but found that it was never appearing. I guess I need to
display the gif in a function before the long function.
PragueExpat wrote:
Why does the following function wait until after the while loop is
finished to update the #timer css? It happens in IE and Firefox - I'm
(still) using jQ 1.1.2.
function wait(time){
$(#timer).css(display,block);
time = time * 1000;
var sleeping = true;
var now = new Date();
var startingMSeconds = now.getTime();
while(sleeping){
alarm = new Date();
alarmMSeconds = alarm.getTime();
if(alarmMSeconds - startingMSeconds time){ sleeping = false; }
}
}
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[jQuery] Re: I thought I understood threads...Works in Opera
On Jul 17, 2:42 pm, PragueExpat [EMAIL PROTECTED] wrote: Apparently, in IE and Firefox, the function must run to completion before the UI is updated with any CSS / DOM changes, but in Opera, the UI is updated immediately upon the jQ call. Yeah, someone mentioned that behaviour a couple of days ago here in the forum. The IE/FF behaviour is saner, IMO, because making 100% sure that all JS/HTML elements are properly locked is, philosophically speaking, impossible, once one considers that arbitrary browser plugins and timer-triggered JS code can manipulate the DOM at literally any microsecond. I was trying to get a 'waiting' gif to appear at the beginning of a long function call, but found that it was never appearing. I guess I need to display the gif in a function before the long function. You could try using the blockUI jQuery plugin - it is designed for just that type of thing. It blocks the user interface so the user cannot click on anything while your operation is running.
