105 lines
2.5 KiB
JavaScript
Executable File
105 lines
2.5 KiB
JavaScript
Executable File
(function() {
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var url = document.location,
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body = document.body;
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slides = document.querySelectorAll('section.slide'),
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slideList = [], hashList = {},
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progress = document.querySelector('div.progress div'),
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fullscreen = false;
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for(var i = 0, slidesLength = slides.length; i < slidesLength; i++) {
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var id = slides[i].id;
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slideList[i] = '#' + id;
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hashList['#' + id] = i;
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slides[i].addEventListener('click', function(){
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enterSingle();
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turnSlide(hashList['#' + this.id]);
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}, false);
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}
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function resizeBody(p) {
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if(typeof p == 'boolean' && p) {
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var transform = 'none';
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} else {
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var sx = body.clientWidth / window.innerWidth,
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sy = body.clientHeight / window.innerHeight,
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transform = 'scale(' + (1/Math.max(sx, sy)) + ')';
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}
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body.style.MozTransform = transform;
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body.style.WebkitTransform = transform;
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body.style.OTransform = transform;
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body.style.msTransform = transform;
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body.style.transform = transform;
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}
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function turnSlide(e) {
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var current = hashList[url.hash],
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target;
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if(e.type == 'keyup') { // Key-Based
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switch(e.which) {
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case 33 : // PgUp
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case 38 : // Up
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case 37 : // Left
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current--;
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break;
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case 34 : // PgDown
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case 40 : // Down
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case 39 : // Right
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current++;
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break;
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case 36 : // Home
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current = 0;
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break;
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case 35 : // End
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current = slideList.length-1;
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break;
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case 32 : // Space
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current += e.shiftKey ? -1 : 1;
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break;
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}
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e.preventDefault();
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} else {
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current = e || 0;
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}
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target = slideList[current];
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if(target) url.hash = target;
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updateProgress();
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}
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function enterSingle() {
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body.className = 'single';
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resizeBody();
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updateProgress();
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window.addEventListener('resize', resizeBody, false);
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document.addEventListener('keyup', turnSlide, false);
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document.addEventListener('keyup', exitSingleEsc, false);
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}
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function exitSingle() {
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body.className = 'multiple';
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resizeBody(true);
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window.removeEventListener('resize', resizeBody, false);
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window.removeEventListener('keyup', turnSlide, false);
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document.removeEventListener('keyup', exitSingleEsc, false);
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}
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function exitSingleEsc(e) {
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if(e.which != 27) return;
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exitSingle();
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url.hash = '';
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}
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function checkHash() {
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if(typeof hashList[url.hash] != 'undefined') {
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enterSingle();
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}
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}
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function updateProgress() {
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if(!progress) return;
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progress.style.width = (100/(slideList.length-1) * hashList[url.hash]).toFixed(2) + '%';
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}
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window.addEventListener('DOMContentLoaded', checkHash, false);
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})(); |