Book Image

Bootstrap Site Blueprints

Book Image

Bootstrap Site Blueprints

Overview of this book

Table of Contents (16 chapters)
Bootstrap Site Blueprints
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Initializing TouchSwipe


With just a few lines, we can direct TouchSwipe to detect swipe events on the carousel and translate them into the Bootstrap methods: .carousel('prev') and .carousel('next'). See these methods referenced in the Bootstrap documentation at http://getbootstrap.com/javascript/#carousel.

If you'd like to, you may also consult the TouchSwipe documentation at http://labs.rampinteractive.co.uk/touchSwipe.

Our present task is very straightforward, as shown in the following steps:

  1. In your project files, open main.js in the js folder

  2. Add the following lines of code in the opened file:

    //Enable swiping...
    $(".carousel-inner").swipe( {
      //Generic swipe handler for all directions
      swipeRight:function(event, direction, distance, duration, fingerCount) {
        $(this).parent().carousel('prev');
      },
      swipeLeft: function() {
        $(this).parent().carousel('next');
      },
      //Default is 75px, set to 0 so any distance triggers swipe
      threshold:0
    });
  3. Save the file.

Now, if you test these files on a touch device, you should be able to swipe left to go to the next slide and right to go to the previous one.

That's it. It's a small cost with a clear usability gain.

Congratulations! Your Bootstrap carousel is now swipe enabled.