Skip to content

Instantly share code, notes, and snippets.

@adamcbrewer

adamcbrewer/facebook.scrollTop.js

Created October 25, 2012 15:58
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save adamcbrewer/3953638 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save adamcbrewer/3953638 to your computer and use it in GitHub Desktop.
Download ZIP

Revisions

  1. adamcbrewer revised this gist Dec 3, 2012. No changes.
  2. adamcbrewer revised this gist Nov 7, 2012. No changes.
  3. adamcbrewer revised this gist Nov 7, 2012. No changes.
  4. adamcbrewer revised this gist Oct 25, 2012. 1 changed file with 2 additions and 1 deletion.
    3 changes: 2 additions & 1 deletion facebook.scrollTop.js
    View file
    Original file line number Diff line number Diff line change
    @@ -1,5 +1,6 @@
    // Function for returning the user to any 'y' position in a Facebook app/tab. Uses jQuery animate, otherwise gracefully falls-back without it.
    // Source: http://stackoverflow.com/questions/7193425/how-do-you-animate-fb-canvas-scrollto & https://developers.facebook.com/docs/reference/javascript/FB.Canvas.scrollTo/
    // Source[1]: http://stackoverflow.com/questions/7193425/how-do-you-animate-fb-canvas-scrollto
    // Source[2]: https://developers.facebook.com/docs/reference/javascript/FB.Canvas.scrollTo/

    var scrollY = function (y) {
    if (window.jQuery) {
  5. adamcbrewer revised this gist Oct 25, 2012. 1 changed file with 2 additions and 1 deletion.
    3 changes: 2 additions & 1 deletion facebook.scrollTop.js
    View file
    Original file line number Diff line number Diff line change
    @@ -1,4 +1,5 @@
    // Function for returning the user to any 'y' position in a Facebook app/tab
    // Function for returning the user to any 'y' position in a Facebook app/tab. Uses jQuery animate, otherwise gracefully falls-back without it.
    // Source: http://stackoverflow.com/questions/7193425/how-do-you-animate-fb-canvas-scrollto & https://developers.facebook.com/docs/reference/javascript/FB.Canvas.scrollTo/

    var scrollY = function (y) {
    if (window.jQuery) {
  6. adamcbrewer created this gist Oct 25, 2012.
    20 changes: 20 additions & 0 deletions facebook.scrollTop.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,20 @@
    // Function for returning the user to any 'y' position in a Facebook app/tab

    var scrollY = function (y) {
    if (window.jQuery) {
    FB.Canvas.getPageInfo (function (pageInfo) {
    $({ y: pageInfo.scrollTop })
    .animate({
    y: y
    },
    {
    duration: 1000,
    step: function (offset) {
    FB.Canvas.scrollTo(0, offset);
    }
    });
    });
    } else {
    FB.Canvas.scrollTo(0, y);
    }
    };