** Project changed: openerp-web => openobject-addons
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https://bugs.launchpad.net/bugs/1060087
Title:
Problem reading barcodes from POS
Status in OpenERP Addons (modules):
Incomplete
Bug description:
Hello,
I have encountered a problem while reading barcodes with the barcode scanner
in POS module. Here I attach the explanation and the workaround I adopted:
While you are in the main screen of the POS, all works ok, the codes are
readed correctly, but when you begin to navigate through the categories and use
the scanner to read another code, it returns error messages of unrecognized
product.
In my research work, I have see that the problem resides in the keyup capture
event from jQuery:
$('body').delegate('','keyup', function (e){
This function is executed every time you navigate through categories, and
repeat the keyup event as categories "clicks" you have entered. I.E.: if you
navigate with the categories buttons, and have a category tree with a 3 level
depth, when you are in the third level and read a barcode, it's readed for
three times, causing an unrecognized product error.
I can't solve with the event.stopPropagation() or event.preventDefault()
directives. The workaround that I have applied is changing the jQuery event
with the onkeyup JavaScript event, which don't inherit the capture event for
more than one time:
$("input#barras")[0].onkeyup = function(e) {
With the [0] tag we only select the first of all captured keyups at the same
time.
I need to include an input textbox where write the barcode. It helps to the
clerks to show the barcode readed, and they can write the code by hand.
Also, I reduced the filter to catch the keycodes by the following line:
if (e.keyCode >= 48 && e.keyCode <= 58) {
It's a simple method cleaner than the earlier. With this filter the 13
(enter) code sended by the scanner.
And this is the line in pos.xml to generate the textbox:
<td>Product<a> EAN: <input id='barras' type='text' style='text-
align:center; height:20px; width:95px; font-size:12px' /></a></td>
Regards
Fran
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