Preventing Repeated Clicks in AngularJS

Question

Preventing Repeated Clicks in AngularJS

Looking for a better approach to handle double clicks in AngularJS other than using ng-disabled. I have a solution to disable double/multi-click functionality on button click and re-enable it after completing an ajax process. Any suggestions?

When our code calls the ajax method on button click, it takes a short amount of time to process and retrieve data from the database. We need to prevent multiple clicks during this time.

I want to block any further clicks while the ajax request is in progress...

Please provide simple solutions without relying on ng-disabled, as I am still learning AngularJS.

CreateDialogService('ajs/common/templates/popup/config_reminder_popup.html', { title: isFrom, backdrop: true, controller: 'configRemindersCBController', footerTemplate: '' + action + '' });

$scope.saveOrUpdateReminder = function (reminder)
{
  if ($scope.isDisabled)
  {
    return;
  }
  $scope.isDisabled = true;
  if (!reminder.daysBeforeAfterCheckDate || reminder.daysBeforeAfterCheckDate === '')
  {
    alertService.openValidatPopup('Please enter days before expiration.', "Error", true, 'configRemindersCBController', 'Ok', 'u1_remove.png');
    $scope.isDisabled = false;
    return;
  }

  configRemindersService.isDaysBeforeAfterCheckDate($scope.objectId, reminder, function (result)
  {
    if (!reminder.selectedMessageTemplate.messageId || reminder.selectedMessageTemplate.messageId === '')
    {
      alertService.openValidatPopup('Please select message template.', "Error", true, 'configRemindersCBController', 'Ok', 'u1_remove.png');
      $scope.isDisabled = false;
      return;
    }
    else if (!reminder.selectedReminderSendOption.reminderSendOptionValue || reminder.selectedReminderSendOption.reminderSendOptionValue === '')
    {
      alertService.openValidatPopup('Please select reminder send option.', "Error", true, 'configRemindersCBController', 'Ok', 'u1_remove.png');
      $scope.isDisabled = false;
      return;
    }
    var enableReminder;
    if (result.Result === 'No')
    {
      if (reminder.enable === true)
      {
        enableReminder = 'Enable';
      }
      else
      {
        enableReminder = 'Disable';
      }

      configRemindersService.addOrUpdateReminderConfigLine($scope.objectId, reminder, enableReminder, function (remindersResponse)
      {
        var reminder = remindersResponse.reminderConfigLine;
        $rootScope.CONFIG = JSON.parse(remindersResponse.configData);
        $scope.$modalClose();
        $scope.isDisabled = false;

        _.filter(configRemindersService.getMessageTemplates(), function (msg)
        {
          if (reminder.messageTemplateId === msg.messageId)
          {
            reminder.selectedMessageTemplate = msg;
          }
        });

        _.filter(configRemindersService.getReminderSendOptions(), function (option)
        {
          if (reminder.reminderSendOption === option.reminderSendOptionValue)
          {
            reminder.selectedReminderSendOption = option;
          }
        });

        if (configRemindersService.getIsFrom() === 'Create Reminder')
        {
          configRemindersService.getReminders().push(reminder);
        }
        else
        {
          configRemindersService.getReminders()[configRemindersService.getIndex()] = reminder;
        }
      });
    }
  });
};

javascript ajax angularjs

Answer 1

Answer №1

Utilizing ng-disabled is the recommended approach for handling object disablement under specific conditions. It serves as a pre-built directive tailored for this purpose.

If the aim is to disable an object without visually indicating its disabled status, there are two potential solutions:

Modify the CSS of the disabled state to give the appearance of being enabled.
Simulate this behavior using a scope variable that triggers actions only when activated.

In the case of the latter option:

$scope.preventClick = false;

$scope.onClick = function () {
    if ($scope.preventClick) { return; }
    $scope.preventClick = true;
    <.. code ..>
    callback: function(data) {
        $scope.preventClick = false;
    }
};

While this method can achieve the desired outcome, it involves duplicating functionality already present and may be less sturdy compared to straightforward element disabling coupled with restyling.

Answer 2

Utilizing ng-disabled is the recommended approach for handling object disablement under specific conditions. It serves as a pre-built directive tailored for this purpose.

If the aim is to disable an object without visually indicating its disabled status, there are two potential solutions:

Modify the CSS of the disabled state to give the appearance of being enabled.
Simulate this behavior using a scope variable that triggers actions only when activated.

In the case of the latter option:

$scope.preventClick = false;

$scope.onClick = function () {
    if ($scope.preventClick) { return; }
    $scope.preventClick = true;
    <.. code ..>
    callback: function(data) {
        $scope.preventClick = false;
    }
};

While this method can achieve the desired outcome, it involves duplicating functionality already present and may be less sturdy compared to straightforward element disabling coupled with restyling.

Answer 3

Answer №2

One way to achieve this is as follows:

Start by defining a $scope variable

$scope.myUniquePromise = null;

In the template code:

<button ng-if="myUniquePromise == null"></button>

This will display the button only when myUniquePromise is null.

Next, in your function:

if($scope.myUniquePromise !== null){

  return $scope.myUniquePromise;

}

$scope.myUniquePromise = performTask().finally(function cleanup(){

  //Reset the $scope variable
  $scope.myUniquePromise = null;
})

Answer 4

One way to achieve this is as follows:

Start by defining a $scope variable

$scope.myUniquePromise = null;

In the template code:

<button ng-if="myUniquePromise == null"></button>

This will display the button only when myUniquePromise is null.

Next, in your function:

if($scope.myUniquePromise !== null){

  return $scope.myUniquePromise;

}

$scope.myUniquePromise = performTask().finally(function cleanup(){

  //Reset the $scope variable
  $scope.myUniquePromise = null;
})

Answer 5

Answer №3

To manage ongoing http requests and prevent successive click events, one approach is to create a function in the $rootScope that keeps track of the request status. This information can then be used to disable specific buttons.

One common method is to use the fieldset attribute to disable input fields during an active http request.

<fieldset ng-disabled="isWaitingForServerResponse()">  //input fields under this tag will be disabled during ongoing requests       </fieldset>

An example implementation for isWaitingForServerResponse involves utilizing a busy bar feature that displays a loading bar while a http request is in progress. By incrementing a counter for each new request event and decrementing it upon completion, you can effectively track the number of active http requests. Additionally, the $http.pendingRequests property can also be utilized for monitoring pending http requests.

$rootScope.numberOfResponseWaitingFromServer = 0;
$rootScope.$on("cfpLoadingBar:loading", function (event) {
  $rootScope.numberOfResponseWaitingFromServer++;
});
$rootScope.$on("cfpLoadingBar:loaded", function (event) {
  $rootScope.numberOfResponseWaitingFromServer--;
});
$rootScope.isWaitingForServerResponse = function () {
  return $rootScope.numberOfResponseWaitingFromServer > 0;
}

Answer 6

To manage ongoing http requests and prevent successive click events, one approach is to create a function in the $rootScope that keeps track of the request status. This information can then be used to disable specific buttons.

One common method is to use the fieldset attribute to disable input fields during an active http request.

<fieldset ng-disabled="isWaitingForServerResponse()">  //input fields under this tag will be disabled during ongoing requests       </fieldset>

An example implementation for isWaitingForServerResponse involves utilizing a busy bar feature that displays a loading bar while a http request is in progress. By incrementing a counter for each new request event and decrementing it upon completion, you can effectively track the number of active http requests. Additionally, the $http.pendingRequests property can also be utilized for monitoring pending http requests.

$rootScope.numberOfResponseWaitingFromServer = 0;
$rootScope.$on("cfpLoadingBar:loading", function (event) {
  $rootScope.numberOfResponseWaitingFromServer++;
});
$rootScope.$on("cfpLoadingBar:loaded", function (event) {
  $rootScope.numberOfResponseWaitingFromServer--;
});
$rootScope.isWaitingForServerResponse = function () {
  return $rootScope.numberOfResponseWaitingFromServer > 0;
}

Preventing Repeated Clicks in AngularJS

Answer №1

Answer №2

Answer №3

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