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ZBar.java
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ZBar.java
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package org.cloudsky.cordovaPlugins;
import org.apache.cordova.CordovaPlugin;
import org.apache.cordova.CallbackContext;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.content.Intent;
import android.content.Context;
import org.cloudsky.cordovaPlugins.ZBarScannerActivity;
public class ZBar extends CordovaPlugin {
// Configuration ---------------------------------------------------
private static int SCAN_CODE = 1;
// State -----------------------------------------------------------
private boolean isInProgress = false;
private CallbackContext scanCallbackContext;
// Plugin API ------------------------------------------------------
@Override
public boolean execute (String action, JSONArray args, CallbackContext callbackContext)
throws JSONException
{
if(action.equals("scan")) {
if(isInProgress) {
callbackContext.error("A scan is already in progress!");
} else {
isInProgress = true;
scanCallbackContext = callbackContext;
JSONObject params = args.optJSONObject(0);
Context appCtx = cordova.getActivity().getApplicationContext();
Intent scanIntent = new Intent(appCtx, ZBarScannerActivity.class);
scanIntent.putExtra(ZBarScannerActivity.EXTRA_PARAMS, params.toString());
cordova.startActivityForResult(this, scanIntent, SCAN_CODE);
}
return true;
} else {
return false;
}
}
// External results handler ----------------------------------------
@Override
public void onActivityResult (int requestCode, int resultCode, Intent result)
{
if(requestCode == SCAN_CODE) {
switch(resultCode) {
case Activity.RESULT_OK:
String barcodeValue = result.getStringExtra(ZBarScannerActivity.EXTRA_QRVALUE);
scanCallbackContext.success(barcodeValue);
break;
case Activity.RESULT_CANCELED:
scanCallbackContext.error("cancelled");
break;
case ZBarScannerActivity.RESULT_ERROR:
scanCallbackContext.error("Scan failed due to an error");
break;
default:
scanCallbackContext.error("Unknown error");
}
isInProgress = false;
scanCallbackContext = null;
}
}
}