[PATCH] Make customDialog method return an promise to the bootbox dialog instance

[betonetotbo]

I changed the customDialog method to return a promise that resolves to the bootbox dialog instance.

This is very useful, for example, to plug an shown.bs.modal event and perform a custom focus.

The ngBootbox.js change (added a promise as return):

customDialog: function (options) {
var deferred = $q.defer();

if (options.templateUrl) {
  getTemplate(options.templateUrl)
    .then(function (template) {
      options.scope = options.scope || $rootScope;
      options.message = $compile(template)(options.scope);
      deferred.resolve($window.bootbox.dialog(options));
    }, function () { //Show default dialog if no template could be found
        deferred.resolve($window.bootbox.dialog(options));
    });
}
else {
    deferred.resolve($window.bootbox.dialog(options));
}

return deferred.promise;
},

This is an example, a dialog with an input and a table as the dialog body:

<script type="text/ng-template" id="my-template.html">
    <input placeholder="Enter your search" />
    <table>
         <tr ng-repeat=".....">
         </tr>
    </table>
</script> 

<script type="text/javascript">
    $ngBootbox.customDialog({
        title: 'Search dialog',
        template: 'my-template.html'
        buttons: {
            'ok': { label: 'OK', className: 'btn-primary' },
            'cancel': { label: 'Cancel', className: 'btn-default' }
        }
    }).then(function(dialog) {
        // on dialog SHOW...
        dialog.one("shown.bs.modal", function() {
          // ... focus on the first INPUT tag
          dialog.find("input:first").focus();
        });
    });
</script>