[github/wallabag/wallabag.git] / app / Resources / static / themes / _global / js / restoreScroll.js

function supportsLocalStorage() {
  try {
    return 'localStorage' in window && window.localStorage !== null;
  } catch (e) {
    return false;
  }
}

function savePercent(id, percent) {
  if (!supportsLocalStorage()) { return false; }
  localStorage['wallabag.article.' + id + '.percent'] = percent;
  return true;
}

function retrievePercent(id) {
  if (!supportsLocalStorage()) { return false; }

  var bheight = $(document).height();
  var percent = localStorage['wallabag.article.' + id + '.percent'];
  var scroll = bheight * percent;

  $('html,body').animate({ scrollTop: scroll }, 'fast');

  return true;
}
Commit	Line	Data
19f2f11e	1	function supportsLocalStorage() {
0743287f TC	2	try {
	3	return 'localStorage' in window && window.localStorage !== null;
	4	} catch (e) {
	5	return false;
	6	}
19f2f11e NL	7	}
	8
	9	function savePercent(id, percent) {
0743287f TC	10	if (!supportsLocalStorage()) { return false; }
	11	localStorage['wallabag.article.' + id + '.percent'] = percent;
	12	return true;
19f2f11e NL	13	}
	14
	15	function retrievePercent(id) {
0743287f	16	if (!supportsLocalStorage()) { return false; }
19f2f11e	17
0743287f TC	18	var bheight = $(document).height();
	19	var percent = localStorage['wallabag.article.' + id + '.percent'];
	20	var scroll = bheight * percent;
19f2f11e	21
0743287f	22	$('html,body').animate({ scrollTop: scroll }, 'fast');
19f2f11e	23
0743287f	24	return true;
5ecdfcd0	25	}