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[IMP] barcodes: use a regexp to match a barcode

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This commit is contained in:
Arthur Maniet
2015-07-30 07:55:53 +02:00
parent 0ed6a7dd18
commit 03534c5bef
1 changed files with 11 additions and 12 deletions
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addons/barcodes/static/src/js/barcode_events.js
+11 -12
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@@ -8,7 +8,9 @@ var BarcodeEvents = core.Class.extend(mixins.PropertiesMixin, {
timeout: null,
key_pressed: {},
buffered_key_events: [],
min_barcode_keys: 3, // minimum barcode length
// Regexp to match a barcode input and extract its payload
// Note: to build in init() if prefix/suffix can be configured
regexp: /(.{3,})[\n\r\t]+/,
// By knowing the terminal character we can interpret buffered keys
// as a barcode as soon as it's encountered (instead of waiting x ms)
suffix: /[\n\r\t]+/,
@@ -29,20 +31,17 @@ var BarcodeEvents = core.Class.extend(mixins.PropertiesMixin, {
},
handle_buffered_keys: function() {
var code = "";
var str = _.reduce(this.buffered_key_events, function(memo, e) { return memo + String.fromCharCode(e.which) }, '');
var match = str.match(this.regexp);
if (this.buffered_key_events.length >= this.min_barcode_keys) {
for (var i = 0; i < this.buffered_key_events.length; i++) {
code += String.fromCharCode(this.buffered_key_events[i].which);
}
if (match) {
var barcode = match[1];
core.bus.trigger('barcode_scanned', code);
core.bus.trigger('barcode_scanned', barcode);
// Dispatch a barcode_scanned DOM event to elements that have
// barcode_events="true" set.
if (this.element_is_editable(this.buffered_key_events[0].target)) {
$(this.buffered_key_events[0].target).trigger('barcode_scanned', code);
}
// Dispatch a barcode_scanned DOM event to elements that have barcode_events="true" set.
if (this.buffered_key_events[0].target.getAttribute("barcode_events") === "true")
$(this.buffered_key_events[0].target).trigger('barcode_scanned', barcode);
} else {
this.resend_buffered_keys();
}