ScanButton (Barcode/NFC)
This Form control (button) starts a scan of barcodes and processes the decoded information inside the Form. The control is based on the NPM cross-platform barcode scanner for cordova and ZXing barcode scanner for browser.
<div
id="scanBtn"
class="pdf-hide"
data-hf-control="ScanButton"
data-hf-options="{
buttonType: 'large',
icon: 'fa-barcode-scan',
buttonHeading: 'QR-Code',
buttonLabel: 'Scan',
scan: {
fieldId: 'add_parts_item1',
scanType: 'BARCODE',
config: {
preferFrontCamera : false,
showFlipCameraButton : true,
showTorchButton : true,
saveHistory: false,
prompt : 'Please scan the appropriate barcode...',
resultDisplayDuration: 500,
formats : 'QR_CODE,AZTEC',
disableAnimations : true,
disableSuccessBeep: false
},
audioFeedback: true,
vibrationFeedback: true,
callbackFeedback: true,
callback: HFFormdefinition.BaseHelpers.customQRScanButton
}
}"
></div>
<div
id="nfcScanBtn"
class="hide-in-view"
data-hf-control="ScanButton"
data-hf-options="{
buttonType: 'large',
buttonHeading: 'NFC-Code',
buttonLabel: 'Scan',
buttonIcon: 'fa-times',
scan: {
mapping: {
'0': 'nfc-textfield-1',
'1': 'nfc-textfield-2',
'2': 'nfc-textfield-3'
},
scanType: 'NFC',
postProcess: HFFormdefinition.BaseHelpers.postProcessNFC
}
}"
></div>
FormControl Options​
buttonType - required​
Define the size of the button ('small', 'medium' or 'large').
How to use:
buttonType: 'large'
Type:
'small' | 'medium' | 'large'
fieldId - required​
Provide the ID of the Form Control receiving the scanned value.
How to use:
fieldId: 'add_parts_item1'
Type:
string
buttonHeading​
Define a label for the control element.
How to use:
buttonHeading: 'Navigation'
Type:
string
buttonLabel​
Sets the label of the button (displayed if buttonType is "medium" or "large").
How to use:
buttonLabel: 'Scan'
Type:
string
buttonStyle​
Define the style of the button.
How to use:
buttonStyle: 'primary'
Type:
'default' | 'primary' | 'success' | 'error' | 'warning'
nextToField​
Define the Form Control the button should be placed next to. Looks like: this
How to use:
nextToField: 'address_city'
Type:
string
scan​
An object with key-value pairs defining the Form field and the scan type, a config part for the plugin and an optional custom postprocessing function.
How to use:
Type:
ScanObject
Scan Object​
scanType - required​
Defines the used scanning type.
How to use:
scanType: 'BARCODE'
Type:
'BARCODE' | 'NFC'
audioFeedback​
Enables or disables an audible feedback on proccessing the scan.
How to use:
audioFeedback: true
Type:
boolean
Default:
true
callback​
Call a custom JS-method after the scan is completed
How to use:
callback: HFFormdefinition.BaselHelpers.callback
Type:
function
Signature:
function(config: any, result: any, postfix: string) => void
callbackFeedback​
Enables or disables an audible feedback on success.
How to use:
callbackFeedback: true
Type:
boolean
Default:
true
config​
Configuration object for scan type BARCODE. For more information check out the links below.
How to use:
config: { ... }
Type:
object
errorMessage​
Customized error message in case the scan fails.
How to use:
errorMessage: 'This is my custom error.'
Type:
string
fieldId​
FormControl in which the scan value is entered.
How to use:
fieldId: 'scan_input_id'
Type:
string
mapping​
An object with key-value pairs defining the scan record ID and Form field ID (especially for NFC Ndef Messages). Overwrites fieldId if both are set!
How to use:
mapping: { '0': 'scan_input_id_1', '1': 'scan_input_id_1' }
Type:
{ [scanKey: string]: string }
multiple​
Enables or disables multiple scanning. Scan starts again after successful scan. It is aborted after an error or by cancel scanning manually.
How to use:
multiple: true
Type:
boolean
multipleMessage​
Displays confirm message after every scan to start or abort next scan.
How to use:
multipleMessage: 'Another scan follows - abort with Cancel or Back'
Type:
string
postProcess​
Call a custom JS-method to postprocess the scanned values.
How to use:
postProcess: HFFormdefinition.BaselHelpers.postProcessMRZ
Type:
function
Signature:
function(config: any, result: any, postfix: string) => Promise<any>
vibrationFeedback​
Enables or disables a haptic feedback on proccessing the scan.
How to use:
vibrationFeedback: true
Type:
boolean
Default:
true
Note
For further information on the config values especially the formats for Barcode/QR-Code scanning (formats : 'QR_CODE,AZTEC'
), please read the documentation at https://github.com/phonegap/phonegap-plugin-barcodescanner for mobile scanning and at https://www.npmjs.com/package/@zxing/library for browser scanning.