What are the best ways to prioritize custom events over ng-click events?

Question

What are the best ways to prioritize custom events over ng-click events?

Recently, I developed a web application using AngularJS. One of the features I included was an input text box with a custom ng-on-blur event handler.

Due to some issues with ng-blur, I decided to create my own custom directive called ngOnBlur. Here's how it appears in my code:

app.directive('ngOnBlur', function($parse){
    return function(scope, elm, attrs){
            var onBlurFunction = $parse(attrs['ngOnBlur']);
            elm.bind("blur", function(event) {
                scope.$apply(function() {
                    onBlurFunction(scope, { $event: event });
                })});
    };
});

The problem arises when I enter text into the textbox and then quickly click on another button in my app (which triggers a ng-click event). Unfortunately, the ng-on-blur event does not get triggered at all and the click event takes precedence.

I'm looking for suggestions on how to adjust the priority of my custom event. Here is what the html currently looks like:

<input type="text"  ng-model="x.y" ng-on-blur="doSomething()" />

I have even tried setting the priority to 100 but it doesn't seem to solve the issue. Any advice or solutions would be greatly appreciated.

javascript angularjs events angularjs-directive

Answer 1

Answer №1

Is there a way to adjust the priority of a custom event?

If you want to change the priority of a custom directive you created, you can specify the priority attribute. By default, it is set to 0.

Here's an example:

HTML

<input type="text"  ng-model="x.y" on-blur="doSomething()" />

     <button ng-click="init();">press  me</button>

JS

app.controller('fessCntrl', function ($scope) {
    $scope.doSomething = function(){
       console.log('doSomething');
    };

     $scope.init = function(){
       console.log('init');
    };
});

app.$inject = ['$scope']; 

app.directive('onBlur', function() {
    return {
            restrict: 'A',           
            link: function(scope, elm, attrs) {
                    elm.bind('blur', function() {
                            scope.$apply(attrs.onBlur);
                    });
            }
    };
});

Check out the demo on Fiddle

Answer 2

Is there a way to adjust the priority of a custom event?

If you want to change the priority of a custom directive you created, you can specify the priority attribute. By default, it is set to 0.

Here's an example:

HTML

<input type="text"  ng-model="x.y" on-blur="doSomething()" />

     <button ng-click="init();">press  me</button>

JS

app.controller('fessCntrl', function ($scope) {
    $scope.doSomething = function(){
       console.log('doSomething');
    };

     $scope.init = function(){
       console.log('init');
    };
});

app.$inject = ['$scope']; 

app.directive('onBlur', function() {
    return {
            restrict: 'A',           
            link: function(scope, elm, attrs) {
                    elm.bind('blur', function() {
                            scope.$apply(attrs.onBlur);
                    });
            }
    };
});

Check out the demo on Fiddle

Answer 3

Answer №2

It has become clear to me why it isn't working now.

Upon clicking the event, I realized it was on a sortable element from jQuery UI. Could this be affecting the priority?

I am clicking on a draggable element that follows this structure:

<ul my-sortable id="sortable">
    <li ng-repeat="item in items">
        <div ng-switch on="item.type">
             <div ng-switch-when ="x" ng-click="doSomething"></div>
        </div>
    </li>
 </ul>

Here is the code for my sortable feature:

app.directive('mySortable',function(){
return {
link:function(scope,el,attrs){
  el.sortable({
    revert: true,
    stop: function(event,ui){
        ui.item.height("auto");
    }
  });
  el.disableSelection();

  el.on( "sortdeactivate", function( event, ui ) {
    var from = angular.element(ui.item).scope().$index;
    var to = el.children().index(ui.item);
    console.log(from);
    console.log(to);
    if (to >= 0) {
      scope.$apply(function(){
        if (from >= 0) {
          scope.$emit('my-sorted', {from:from,to:to});
        } else {
          scope.$emit('my-created', {to:to, index:angular.element(ui.item).attr("data-index")});
          ui.item.remove();
        }
      })
    }
  } );
}

} });

If anyone knows what I should do next, please advise. Thank you!

Answer 4

It has become clear to me why it isn't working now.

Upon clicking the event, I realized it was on a sortable element from jQuery UI. Could this be affecting the priority?

I am clicking on a draggable element that follows this structure:

<ul my-sortable id="sortable">
    <li ng-repeat="item in items">
        <div ng-switch on="item.type">
             <div ng-switch-when ="x" ng-click="doSomething"></div>
        </div>
    </li>
 </ul>

Here is the code for my sortable feature:

app.directive('mySortable',function(){
return {
link:function(scope,el,attrs){
  el.sortable({
    revert: true,
    stop: function(event,ui){
        ui.item.height("auto");
    }
  });
  el.disableSelection();

  el.on( "sortdeactivate", function( event, ui ) {
    var from = angular.element(ui.item).scope().$index;
    var to = el.children().index(ui.item);
    console.log(from);
    console.log(to);
    if (to >= 0) {
      scope.$apply(function(){
        if (from >= 0) {
          scope.$emit('my-sorted', {from:from,to:to});
        } else {
          scope.$emit('my-created', {to:to, index:angular.element(ui.item).attr("data-index")});
          ui.item.remove();
        }
      })
    }
  } );
}

} });

If anyone knows what I should do next, please advise. Thank you!

What are the best ways to prioritize custom events over ng-click events?

Answer №1

Answer №2

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