AngularJS: dotdotdot for text overflow and performance

Question

I am new to angularJS and may have written something bad ...

but how can I implement this plugin correctly: https://github.com/BeSite/jQuery.dotdotdot

on my desk?

now with my code my edit form and the table is really not too fast ... very slow ... What did I do wrong?

directive:

.directive('dotdotdot', function(){
        return {
            restrict: 'A',
            link: function(scope, element, attributes) {
                scope.$watch(function() {
                    element.dotdotdot({watch: true, wrap: 'letter'});
                });
            }
        }
    });

and table:

<table id="articles" class="table table-striped articles-table">
  <thead>
    <tr class="table-row">
      <th data-ng-click="predicate = 'Date'; reverse=!reverse">Date<i ng-class="{'arrow-down' : (reverse && predicate==='Date') || (predicate!=='Date'), 'arrow-up' : !reverse && predicate==='Date'}"></i></th>
      <th data-ng-click="predicate = 'Title'; reverse=!reverse">Title<i ng-class="{'arrow-down' : (reverse && predicate==='Title') || (predicate!=='Title'), 'arrow-up' : !reverse && predicate==='Title'}"></i></th>
      <th data-sorter="false">article</th>
      <th data-sorter="false"></th>
      <th data-sorter="false"></th>
    </tr>
  </thead>
  <tbody>
    <tr data-ng-repeat="article in articles | orderBy:predicate:reverse" data-id="{{article.Id}}" class="table-row">                  
      <td class="text-nowrap">
        <div class="articles-cell">
          {{article.Date}}
        </div>                    
      </td>
      <td>
        <div class="articles-cell article-text-area" dotdotdot>                      
          {{article.Title}}
        </div>
      </td>
      <td>
        <div class="articles-cell">
          <a href="javascript:void(0)" data-ng-click="showarticle(article)" data-toggle="modal" data-target="#new-article" class="action">
            <img data-ng-src="{{article.Photo}}" data-err-src="images/no_photo.png" class="article-img img-rounded img-responsive" alt="article" />
          </a>
        </div>
      </td>
      <td>
        <div class="articles-cell" dotdotdot>
          <div class="content" data-ng-bind-html="article.Content" class="articles-row" ></div>
        </div>
      </td>
      <td class="crud-arr">
      </td>
    </tr>
  </tbody>
</table>

even if I rewrote it using bindings - it slows down ... what am I doing wrong?

Answer 1

@pankajparkar, $watch. , element.dotdotdot() - , . , , , $watch:

.directive('dotdotdot', function(){
    return {
        restrict: 'A',
        link: function(scope, element, attributes) {
            element.dotdotdot({watch: true, wrap: 'letter'});
        }
    }
});

Answer 2

<li ng-repeat="movie in movies">
    <div dma-dotdotdot>{{movie.title}}</div>
</li>

(function () {
    'use strict';

    angular.module('dma.common').directive('dmaDotDotDot', [
        function dmaDotDotDot() {
            return {
                restrict: 'A',
                link: function (scope, element, attrs) {
                    scope.$evalAsync(function () {
                        element.dotdotdot({
                            wrap: 'letter'
                        });
                    });
                }
            };
        }
    ]);
}());

ng-bind , , . ng-bind , dotdotdot(), ( ).

- , . $watch. , , $evalAsync().

. https://docs.angularjs.org/api/ng/type/ $rootScope.Scope # $evalAsync , .

Answer 3

, "dotdotdot" , jquery.dotdotdot, $('.dotdotdot').dotdotdot() , . , $watch - , , . , .

You have to do this because deleting $watchin the directive has strange side effects if you use rawHtml binding or custom filters for the element in question.

Answer 4

Here is my attempt:

• Adds an expression to the $ watch call to improve performance
• Removes the {watch: true} parameter, which will uselessly poll

Directive

app.directive('dotdotdot', ['$timeout', function($timeout) {
    return {
        restrict: 'A',
        link: function(scope, element, attributes) {

            scope.$watch(attributes.dotdotdot, function() {

                // Wait for DOM to render
                $timeout(function() {
                    element.dotdotdot();
                }, 400);
            });
        }
    }
}]);

Template:

<div dotdotdot='article.Title'>                      
      {{article.Title}}
</div>