login form and param

[Pink-El]

Hello,

 

How to skip login form if param in url exists?

 

Example http://127.0.0.1:8077/m/?barcode=48200125

In this case I do not need login form and I can`t to catch barcode in login form.

Thnak you,

Dmytro Lendel

[Pink-El]

I am sorry. I found solution. OnShow event of the login form.

Thank you

[Sherzod]

Hi,

 

Please look at the demo example \FMSoft\Framework\uniGUI\Demos\Desktop\LoginForm Cookies

 

TUniMainModule.UniGUIMainModuleBeforeLogin

 

Best regards,

[GerhardV]

It depends on what the "barcode" means and what you want to do...is not clear from your question but you can also use a REST call and the UniGUIServerModuleHTTPCommand event of TUniServerModule....I use it for reports...see below.

procedure TUniServerModule.UniGUIServerModuleHTTPCommand(ARequestInfo: TIdHTTPRequestInfo;
  AResponseInfo: TIdHTTPResponseInfo; var Handled: Boolean);
var
  dm : TdmReportData;

begin
  if ARequestInfo.URI='/report/finsummary' then
  begin
    dm := TdmReportData.Create(nil);
    try
      dm.qryReport.Connection := dm.FDConnection;
      AResponseInfo.ContentText := dm.GenerateReportPDF(repFinSummary, '') + ' header [user] = ' + ARequestInfo.RawHeaders.Values['user'];
      AResponseInfo.ResponseNo := 200;
      AResponseInfo.WriteContent;
      Handled := True;
    finally
      dm.Free;
    end;
 end;
end;

[Pink-El]

Idea is very simple.

I need check barcode in database with mobile device. I found QuickMark application. This application can recognize barcode by camera and open url with value after reading.

My application has login form. What I can do in this case?

1 use onShow event of the login form

2 use cookis and hide login form

3 httpcommand of the server module

 

Seems that second way is good solution

 

Thank you,

Dmytro Lendel

[GerhardV]

I use barcode scanning in a mobile Asset Verification application. Have a look at quaggaJS. It is a JS library so easy to integrate with UniGUI and no need for 3rd party apps, it is also free.

 

https://serratus.github.io/quaggaJS/

 

Cheers.

[Pink-El]

Hello,

Thank you very much for link. Will check.

Dmytro Lendel

[Pink-El]

Hello,

Have you small exmple how to use quagga within UNIGUI?

Thank you,

Dmytro Lendel

[GerhardV]

I use a UnimHTMLFrame and below is the HTML for it:

<section id="container" class="container">
    <div class="controls">
        <fieldset class="input-group">
            <button class="start x-button" style="height: 32px; width: 150px; color: #fff;">START SCANNING</button>
        </fieldset>
        <div class="reader-config-group">
            <label>
                <span>Camera</span>
                <select name="input-stream_constraints" id="deviceSelection" style="height: 32px;"></select>
            </label>
        </div>
    </div>
    <div id="result_strip">
        <ul class="thumbnails"></ul>
    </div>
    <div class="video-center">
      <div id="interactive" class="viewport"><video autoplay="true" preload="auto" src=""></video><canvas class="drawingBuffer" width="320" height="240"></canvas><br clear="all"></div>
    </div>
</section>


<script src="files/quagga/js/live_w_locator.js" type="text/javascript"></script>

In the last line you can see it loads the script "live_w_locator.js". You can get that file from the website as well as the quagga.js file. See the examples. Those files go into your files folder of the server...

 

I have modified the "live_w_locator.js" to do a Ajax call to the UniGUI Server when a code has been scanned successfully. (Note that below is just a snipped from "live_w_locator.js".)  

 

ajaxRequest(frmBarcodeScan.UnimHTMLFrame, 'scansuccess', ["barcode="+code])...see below:

Quagga.onDetected(function(result) {
        var code = result.codeResult.code;
		App.scannedCount ++;
		
		if (App.scannedCount < 2) {
            var $node = null;
            $node = $('<li><div class="thumbnail"><div class="caption"><h4 class="code"></h4></div></li>');
            $node.find("h4.code").html(code);
            $("#result_strip ul.thumbnails").prepend($node);
        } 
		else {
			Quagga.stop();
			App.scannedCount = 0;
			ajaxRequest(frmBarcodeScan.UnimHTMLFrame, 'scansuccess', ["barcode="+code]);
		}
    });

scannedCount is a variable I introduced as to how many scans must be done before it stops and send the array of values back.

 

Just remember you have to use https as for the camera access to work.

 

Here is a few images:

 

 

[JarekZ]

Can you show changes in live_w_locator.js ??

[JarekZ]

The camera starts but the code scan unfortunately does not. The green frame around the code also does not exist. Maybe not all files have lost. Can you write more?

[GerhardV]

There are many types of Barcodes, you would need to adjust the decoder property array under the state object to cater for the expected types in the live_w_locator.js file.

decoder: {
                readers : ['ean_reader', 'ean_5_reader', 'ean_2_reader', 'code_128_reader']

See the examples on the Quagga website...in which case they have a drop down to select the type but you can pass it in as above. Remember the more you define the longer it might take to recognize it as it has to try all of them.

[gerhardhziegler]

On 6/3/2017 at 3:53 PM, Pink-El said:

I am sorry. I found solution. OnShow event of the login form.

Thank you

I tried to use the OnShow to set the ModalResult:=mrOK and it crashed. Can you tell me how you solved it?

[Abaksoft]

1 hour ago, gerhardhziegler said:

I tried to use the OnShow to set the ModalResult:=mrOK and it crashed. Can you tell me how you solved it?

Hello,

If you don't want to lost your time, you have a complete, turnkey solution for a modest sum, from our friend marlon.

Easy to use and totally integrated to unigui :

http://forums.unigui.com/index.php?/topic/11359-falcon-store-components-delphi-httpsstorefalconsistemascombr/&do=findComment&comment=139534

I am using it and totally satified