Re: How to refresh part of a page automatically
On Thu, Oct 17, 2013 at 8:40 PM, Mike K wrote: > > Ray, thanks for this. I can see you get your kicks writing bits of code > like this dont you. You've gone wy past answering my question as > you usually do, and I'm most grateful. I have a suspicion your idea of a > relaxing evening on your vacation is a coding problem and a laptop, where > the rest of us will waste our time on a cold beverage and warm company on > the couch. > Heh, you don't notice that week or so when I don't blog? That's vacation. ;) ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:356937 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: How to refresh part of a page automatically
Ray, thanks for this. I can see you get your kicks writing bits of code like this dont you. You've gone wy past answering my question as you usually do, and I'm most grateful. I have a suspicion your idea of a relaxing evening on your vacation is a coding problem and a laptop, where the rest of us will waste our time on a cold beverage and warm company on the couch. Actually Ray waiting for the image to finish uploading IS an issue.We frequently see the webcam page with no image on it because the page refreshed while the new image was uploading. I experimented with getting ColdFusion to read the file and write it out to another file, and have the page call that one, but coldfusion still hiccupped when there wasn't a complete image. ( I never got to finishing writing a handler for that - this is a probono site for me and I had to move on to paying work.) Cheers Mike Kear Windsor, NSW, Australia Adobe Certified Advanced ColdFusion Developer AFP Webworks http://afpwebworks.com ColdFusion 9 Enterprise, PHP, ASP, ASP.NET hosting from AUD$15/month On Fri, Oct 18, 2013 at 6:12 AM, Raymond Camden wrote: > > If you want to get anal, you could set a setTimeout and listen for the load > event on the image. That way if it takes a bit longer to load an image one > time the code will hold off on firing another request. (Probably not an > issue though if you are waiting 60 seconds.) > > > > ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:356936 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: How to refresh part of a page automatically
If you want to get anal, you could set a setTimeout and listen for the load
event on the image. That way if it takes a bit longer to load an image one
time the code will hold off on firing another request. (Probably not an
issue though if you are waiting 60 seconds.)
On Thu, Oct 17, 2013 at 6:46 AM, Raymond Camden wrote:
> Real quick example here. It uses a date object to add a unique URL
> parameter to the end which should help with caching. No jQuery used, just
> standard HTML. The querySelector call is *kinda* modern-ish only (see
> caniuse.com for specifics) and could be replaced by
> document.getElementById. Oh - and I used 3 seconds. You want to change that.
>
>
>
>
> My Page
>
>
>
>
>
>
>
> document.addEventListener("DOMContentLoaded", function() {
>
> var img = document.querySelector("#theImage");
> var src = "./sourceimage.jpg";
>
> window.setInterval(function() {
> img.src = src + "?d=" + (new Date().getTime());
> console.log(img.src);
> },3000);
>
> }, false);
>
>
>
>
>
> On Thu, Oct 17, 2013 at 6:36 AM, Raymond Camden
> wrote:
>
>> You can use a setInterval call in JS to run every 60 seconds and reload
>> the image. You don't need a jQuery plugin for this.
>>
>>
>> On Thu, Oct 17, 2013 at 6:16 AM, Mike K wrote:
>>
>>>
>>> I have a page with a webcam image in it. The webcam uploads a new image
>>> every 60 seconds, and I use a HTML refresh to refresh the whole page
>>> every
>>> 60 seconds.
>>>
>>> It seems a bit clunky to me. It's worked just fine for several years,
>>> but
>>> I'd like to see if i can find a way to refresh only the div that contains
>>> the image. (or iframe if that's a better way to do it but i'd like ot
>>> stay
>>> away from frames and iframes if i can).
>>>
>>> Does anyone know how I could do this? i.e. just refresh part of the page
>>> automatically?Is there a jquery plugin that would do that? It needs
>>> to
>>> be fully automatic so the page just changes, a bit like the way facebook
>>> changes all by itself as new material is received.
>>>
>>>
>>>
>
> --
> ===
> Raymond Camden, Adobe Developer Evangelist
>
> Email : raymondcam...@gmail.com
> Blog : www.raymondcamden.com
> Twitter: cfjedimaster
>
--
===
Raymond Camden, Adobe Developer Evangelist
Email : raymondcam...@gmail.com
Blog : www.raymondcamden.com
Twitter: cfjedimaster
~|
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Re: How to refresh part of a page automatically
Real quick example here. It uses a date object to add a unique URL
parameter to the end which should help with caching. No jQuery used, just
standard HTML. The querySelector call is *kinda* modern-ish only (see
caniuse.com for specifics) and could be replaced by
document.getElementById. Oh - and I used 3 seconds. You want to change that.
My Page
document.addEventListener("DOMContentLoaded", function() {
var img = document.querySelector("#theImage");
var src = "./sourceimage.jpg";
window.setInterval(function() {
img.src = src + "?d=" + (new Date().getTime());
console.log(img.src);
},3000);
}, false);
On Thu, Oct 17, 2013 at 6:36 AM, Raymond Camden wrote:
> You can use a setInterval call in JS to run every 60 seconds and reload
> the image. You don't need a jQuery plugin for this.
>
>
> On Thu, Oct 17, 2013 at 6:16 AM, Mike K wrote:
>
>>
>> I have a page with a webcam image in it. The webcam uploads a new image
>> every 60 seconds, and I use a HTML refresh to refresh the whole page every
>> 60 seconds.
>>
>> It seems a bit clunky to me. It's worked just fine for several years,
>> but
>> I'd like to see if i can find a way to refresh only the div that contains
>> the image. (or iframe if that's a better way to do it but i'd like ot
>> stay
>> away from frames and iframes if i can).
>>
>> Does anyone know how I could do this? i.e. just refresh part of the page
>> automatically?Is there a jquery plugin that would do that? It needs
>> to
>> be fully automatic so the page just changes, a bit like the way facebook
>> changes all by itself as new material is received.
>>
>>
>>
--
===
Raymond Camden, Adobe Developer Evangelist
Email : raymondcam...@gmail.com
Blog : www.raymondcamden.com
Twitter: cfjedimaster
~|
Order the Adobe Coldfusion Anthology now!
http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion
Archive:
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Re: How to refresh part of a page automatically
You can use a setInterval call in JS to run every 60 seconds and reload the image. You don't need a jQuery plugin for this. On Thu, Oct 17, 2013 at 6:16 AM, Mike K wrote: > > I have a page with a webcam image in it. The webcam uploads a new image > every 60 seconds, and I use a HTML refresh to refresh the whole page every > 60 seconds. > > It seems a bit clunky to me. It's worked just fine for several years, but > I'd like to see if i can find a way to refresh only the div that contains > the image. (or iframe if that's a better way to do it but i'd like ot stay > away from frames and iframes if i can). > > Does anyone know how I could do this? i.e. just refresh part of the page > automatically?Is there a jquery plugin that would do that? It needs to > be fully automatic so the page just changes, a bit like the way facebook > changes all by itself as new material is received. > > -- > Cheers > Mike Kear > Windsor, NSW, Australia > Adobe Certified Advanced ColdFusion Developer > AFP Webworks > http://afpwebworks.com > ColdFusion 9 Enterprise, PHP, ASP, ASP.NET hosting from AUD$15/month > > > ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:356927 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
