Public Member Functions | |
| javascriptFile () | |
| ReadFromScale () | |
| WriteToScale ($str) | |
| ReadReset () | |
Static Public Member Functions | |
| static | factory ($class) |
Detailed Description
PHP Module for talking to hardware
This class deals with reading and writing to hardware devices that PHP can't talk to directly. Normally this means "scanner scale". All drivers should provide a ScaleDriverWrapper subclass.
Modules that extend this class must at least define ReadFromScale and WriteToScale.
Member Function Documentation
| COREPOS\pos\lib\DriverWrappers\ScaleDriverWrapper::javascriptFile | ( | ) |
Javascript used to interact with scale driver. Default is poll-scale.js.
Javascript file must provide a function named pollScale.
| COREPOS\pos\lib\DriverWrappers\ScaleDriverWrapper::ReadFromScale | ( | ) |
Reads available scale and scanner input Function should print a JSON object with two fields: 'scale' is an HTML string to display current scale weight/status 'scans' is a string representing a UPC Use scaledisplaymsg() to generate scale HTML. This ensures appropriate weight-related session variables are updated.
| COREPOS\pos\lib\DriverWrappers\ScaleDriverWrapper::ReadReset | ( | ) |
Clear all pending input
If the driver has been running in the backgounrd and the browser hasn't, there could be a lot of accumulated weight data. POS uses this method to discard everything on startup.
| COREPOS\pos\lib\DriverWrappers\ScaleDriverWrapper::WriteToScale | ( | $str | ) |
Sends output to the scale.
- Parameters
-
$str the output Currently supported messages (not case sensitive): - goodBeep
- errorBeep
- twoPairs
- rePoll
- wakeup
The documentation for this class was generated from the following file:
- pos/is4c-nf/lib/DriverWrappers/ScaleDriverWrapper.php
