jQuery(document).ready(function($){ var timelines = $('.cd-horizontal-timeline'), eventsMinDistance = 60;
(timelines.length > 0) && initTimeline(timelines);
function initTimeline(timelines) { timelines.each(function(){ var timeline = $(this), timelineComponents = {}; //cache timeline components timelineComponents['timelineWrapper'] = timeline.find('.events-wrapper'); timelineComponents['eventsWrapper'] = timelineComponents['timelineWrapper'].children('.events'); timelineComponents['fillingLine'] = timelineComponents['eventsWrapper'].children('.filling-line'); timelineComponents['timelineEvents'] = timelineComponents['eventsWrapper'].find('a'); timelineComponents['timelineDates'] = parseDate(timelineComponents['timelineEvents']); timelineComponents['eventsMinLapse'] = minLapse(timelineComponents['timelineDates']); timelineComponents['timelineNavigation'] = timeline.find('.cd-timeline-navigation'); timelineComponents['eventsContent'] = timeline.children('.events-content');
//assign a left postion to the single events along the timeline setDatePosition(timelineComponents, eventsMinDistance); //assign a width to the timeline var timelineTotWidth = setTimelineWidth(timelineComponents, eventsMinDistance); //the timeline has been initialize - show it timeline.addClass('loaded');
//detect click on the next arrow timelineComponents['timelineNavigation'].on('click', '.next', function(event){ event.preventDefault(); updateSlide(timelineComponents, timelineTotWidth, 'next'); }); //detect click on the prev arrow timelineComponents['timelineNavigation'].on('click', '.prev', function(event){ event.preventDefault(); updateSlide(timelineComponents, timelineTotWidth, 'prev'); }); //detect click on the a single event - show new event content timelineComponents['eventsWrapper'].on('click', 'a', function(event){ event.preventDefault(); timelineComponents['timelineEvents'].removeClass('selected'); $(this).addClass('selected'); updateOlderEvents($(this)); updateFilling($(this), timelineComponents['fillingLine'], timelineTotWidth); updateVisibleContent($(this), timelineComponents['eventsContent']); });
//on swipe, show next/prev event content timelineComponents['eventsContent'].on('swipeleft', function(){ var mq = checkMQ(); ( mq == 'mobile' ) && showNewContent(timelineComponents, timelineTotWidth, 'next'); }); timelineComponents['eventsContent'].on('swiperight', function(){ var mq = checkMQ(); ( mq == 'mobile' ) && showNewContent(timelineComponents, timelineTotWidth, 'prev'); });
//keyboard navigation $(document).keyup(function(event){ if(event.which=='37' && elementInViewport(timeline.get(0)) ) { showNewContent(timelineComponents, timelineTotWidth, 'prev'); } else if( event.which=='39' && elementInViewport(timeline.get(0))) { showNewContent(timelineComponents, timelineTotWidth, 'next'); } }); }); }
function updateSlide(timelineComponents, timelineTotWidth, string) { //retrieve translateX value of timelineComponents['eventsWrapper'] var translateValue = getTranslateValue(timelineComponents['eventsWrapper']), wrapperWidth = Number(timelineComponents['timelineWrapper'].css('width').replace('px', )); //translate the timeline to the left('next')/right('prev') (string == 'next') ? translateTimeline(timelineComponents, translateValue - wrapperWidth + eventsMinDistance, wrapperWidth - timelineTotWidth) : translateTimeline(timelineComponents, translateValue + wrapperWidth - eventsMinDistance); }
function showNewContent(timelineComponents, timelineTotWidth, string) { //go from one event to the next/previous one var visibleContent = timelineComponents['eventsContent'].find('.selected'), newContent = ( string == 'next' ) ? visibleContent.next() : visibleContent.prev();
if ( newContent.length > 0 ) { //if there's a next/prev event - show it var selectedDate = timelineComponents['eventsWrapper'].find('.selected'), newEvent = ( string == 'next' ) ? selectedDate.parent('li').next('li').children('a') : selectedDate.parent('li').prev('li').children('a');
updateFilling(newEvent, timelineComponents['fillingLine'], timelineTotWidth); updateVisibleContent(newEvent, timelineComponents['eventsContent']); newEvent.addClass('selected'); selectedDate.removeClass('selected'); updateOlderEvents(newEvent); updateTimelinePosition(string, newEvent, timelineComponents, timelineTotWidth); } }
function updateTimelinePosition(string, event, timelineComponents, timelineTotWidth) { //translate timeline to the left/right according to the position of the selected event var eventStyle = window.getComputedStyle(event.get(0), null), eventLeft = Number(eventStyle.getPropertyValue("left").replace('px', )), timelineWidth = Number(timelineComponents['timelineWrapper'].css('width').replace('px', )), timelineTotWidth = Number(timelineComponents['eventsWrapper'].css('width').replace('px', )); var timelineTranslate = getTranslateValue(timelineComponents['eventsWrapper']);
if( (string == 'next' && eventLeft > timelineWidth - timelineTranslate) || (string == 'prev' && eventLeft < - timelineTranslate) ) { translateTimeline(timelineComponents, - eventLeft + timelineWidth/2, timelineWidth - timelineTotWidth); }
}
function translateTimeline(timelineComponents, value, totWidth) { var eventsWrapper = timelineComponents['eventsWrapper'].get(0); value = (value > 0) ? 0 : value; //only negative translate value value = ( !(typeof totWidth === 'undefined') && value < totWidth ) ? totWidth : value; //do not translate more than timeline width setTransformValue(eventsWrapper, 'translateX', value+'px'); //update navigation arrows visibility (value == 0 ) ? timelineComponents['timelineNavigation'].find('.prev').addClass('inactive') : timelineComponents['timelineNavigation'].find('.prev').removeClass('inactive'); (value == totWidth ) ? timelineComponents['timelineNavigation'].find('.next').addClass('inactive') : timelineComponents['timelineNavigation'].find('.next').removeClass('inactive'); }
function updateFilling(selectedEvent, filling, totWidth) { //change .filling-line length according to the selected event var eventStyle = window.getComputedStyle(selectedEvent.get(0), null), eventLeft = eventStyle.getPropertyValue("left"), eventWidth = eventStyle.getPropertyValue("width"); eventLeft = Number(eventLeft.replace('px', )) + Number(eventWidth.replace('px', ))/2; var scaleValue = eventLeft/totWidth; setTransformValue(filling.get(0), 'scaleX', scaleValue); }
function setDatePosition(timelineComponents, min) { for (i = 0; i < timelineComponents['timelineDates'].length; i++) { var distance = daydiff(timelineComponents['timelineDates'][0], timelineComponents['timelineDates'][i]), distanceNorm = Math.round(distance/timelineComponents['eventsMinLapse']) + 2; timelineComponents['timelineEvents'].eq(i).css('left', distanceNorm*min+'px'); } }
function setTimelineWidth(timelineComponents, width) { var timeSpan = daydiff(timelineComponents['timelineDates'][0], timelineComponents['timelineDates'][timelineComponents['timelineDates'].length-1]), timeSpanNorm = timeSpan/timelineComponents['eventsMinLapse'], timeSpanNorm = Math.round(timeSpanNorm) + 4, totalWidth = timeSpanNorm*width; timelineComponents['eventsWrapper'].css('width', totalWidth+'px'); updateFilling(timelineComponents['timelineEvents'].eq(0), timelineComponents['fillingLine'], totalWidth);
return totalWidth; }
function updateVisibleContent(event, eventsContent) { var eventDate = event.data('date'), visibleContent = eventsContent.find('.selected'), selectedContent = eventsContent.find('[data-date="'+ eventDate +'"]'), selectedContentHeight = selectedContent.height();
if (selectedContent.index() > visibleContent.index()) { var classEnetering = 'selected enter-right', classLeaving = 'leave-left'; } else { var classEnetering = 'selected enter-left', classLeaving = 'leave-right'; }
selectedContent.attr('class', classEnetering); visibleContent.attr('class', classLeaving).one('webkitAnimationEnd oanimationend msAnimationEnd animationend', function(){ visibleContent.removeClass('leave-right leave-left'); selectedContent.removeClass('enter-left enter-right'); }); eventsContent.css('height', selectedContentHeight+'px'); }
function updateOlderEvents(event) { event.parent('li').prevAll('li').children('a').addClass('older-event').end().end().nextAll('li').children('a').removeClass('older-event'); }
function getTranslateValue(timeline) { var timelineStyle = window.getComputedStyle(timeline.get(0), null), timelineTranslate = timelineStyle.getPropertyValue("-webkit-transform") ||
timelineStyle.getPropertyValue("-moz-transform") || timelineStyle.getPropertyValue("-ms-transform") || timelineStyle.getPropertyValue("-o-transform") || timelineStyle.getPropertyValue("transform");
if( timelineTranslate.indexOf('(') >=0 ) { var timelineTranslate = timelineTranslate.split('(')[1]; timelineTranslate = timelineTranslate.split(')')[0]; timelineTranslate = timelineTranslate.split(','); var translateValue = timelineTranslate[4]; } else { var translateValue = 0; }
return Number(translateValue);
}
function setTransformValue(element, property, value) { element.style["-webkit-transform"] = property+"("+value+")"; element.style["-moz-transform"] = property+"("+value+")"; element.style["-ms-transform"] = property+"("+value+")"; element.style["-o-transform"] = property+"("+value+")"; element.style["transform"] = property+"("+value+")"; }
//based on http://stackoverflow.com/questions/542938/how-do-i-get-the-number-of-days-between-two-dates-in-javascript function parseDate(events) { var dateArrays = []; events.each(function(){ var dateComp = $(this).data('date').split('/'), newDate = new Date(dateComp[2], dateComp[1]-1, dateComp[0]); dateArrays.push(newDate); }); return dateArrays; }
function parseDate2(events) { var dateArrays = []; events.each(function(){ var singleDate = $(this), dateComp = singleDate.data('date').split('T'); if( dateComp.length > 1 ) { //both DD/MM/YEAR and time are provided var dayComp = dateComp[0].split('/'), timeComp = dateComp[1].split(':'); } else if( dateComp[0].indexOf(':') >=0 ) { //only time is provide var dayComp = ["2000", "0", "0"], timeComp = dateComp[0].split(':'); } else { //only DD/MM/YEAR var dayComp = dateComp[0].split('/'), timeComp = ["0", "0"]; } var newDate = new Date(dayComp[2], dayComp[1]-1, dayComp[0], timeComp[0], timeComp[1]); dateArrays.push(newDate); }); return dateArrays; }
function daydiff(first, second) { return Math.round((second-first)); }
function minLapse(dates) { //determine the minimum distance among events var dateDistances = []; for (i = 1; i < dates.length; i++) { var distance = daydiff(dates[i-1], dates[i]); dateDistances.push(distance); } return Math.min.apply(null, dateDistances); }
/* How to tell if a DOM element is visible in the current viewport? http://stackoverflow.com/questions/123999/how-to-tell-if-a-dom-element-is-visible-in-the-current-viewport */ function elementInViewport(el) { var top = el.offsetTop; var left = el.offsetLeft; var width = el.offsetWidth; var height = el.offsetHeight;
while(el.offsetParent) { el = el.offsetParent; top += el.offsetTop; left += el.offsetLeft; }
return ( top < (window.pageYOffset + window.innerHeight) && left < (window.pageXOffset + window.innerWidth) && (top + height) > window.pageYOffset && (left + width) > window.pageXOffset ); }
function checkMQ() { //check if mobile or desktop device return window.getComputedStyle(document.querySelector('.cd-horizontal-timeline'), '::before').getPropertyValue('content').replace(/'/g, "").replace(/"/g, ""); } });