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Updated echo.js to 1.7.3

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Signed-off-by: Jim Martens <github@2martens.de>
This commit is contained in:
Jim Martens
2019-02-26 20:06:49 +01:00
parent cf601dc307
commit 856dd8244b
1 changed files with 31 additions and 29 deletions
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60
_assets/js/echo.js
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@ -1,17 +1,19 @@
/*! echo.js v1.7.0 | (c) 2015 @toddmotto | https://github.com/toddmotto/echo */
/*! echo-js v1.7.3 | (c) 2016 @toddmotto | https://github.com/toddmotto/echo */
/*global define */
/*global module */
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
if (typeof define === "function" && define.amd) {
define(function() {
return factory(root);
});
} else if (typeof exports === 'object') {
} else if (typeof exports === "object") {
module.exports = factory;
} else {
root.echo = factory(root);
}
})(this, function (root) {
'use strict';
"use strict";
let echo = {};
@ -19,11 +21,11 @@
let offset, poll, delay, useDebounce, unload;
const isHidden = function (element) {
let isHidden = function (element) {
return (element.offsetParent === null);
};
const inView = function (element, view) {
let inView = function (element, view) {
if (isHidden(element)) {
return false;
}
@ -32,7 +34,7 @@
return (box.right >= view.l && box.bottom >= view.t && box.left <= view.r && box.top <= view.b);
};
const debounceOrThrottle = function () {
let debounceOrThrottle = function () {
if(!useDebounce && !!poll) {
return;
}
@ -48,7 +50,7 @@
let offsetAll = opts.offset || 0;
let offsetVertical = opts.offsetVertical || offsetAll;
let offsetHorizontal = opts.offsetHorizontal || offsetAll;
const optionToInt = function (opt, fallback) {
let optionToInt = function (opt, fallback) {
return parseInt(opt || fallback, 10);
};
offset = {
@ -63,16 +65,16 @@
callback = opts.callback || callback;
echo.render();
if (document.addEventListener) {
root.addEventListener('scroll', debounceOrThrottle, false);
root.addEventListener('load', debounceOrThrottle, false);
root.addEventListener("scroll", debounceOrThrottle, false);
root.addEventListener("load", debounceOrThrottle, false);
} else {
root.attachEvent('onscroll', debounceOrThrottle);
root.attachEvent('onload', debounceOrThrottle);
root.attachEvent("onscroll", debounceOrThrottle);
root.attachEvent("onload", debounceOrThrottle);
}
};
echo.render = function () {
let nodes = document.querySelectorAll('img[data-echo], [data-echo-background]');
echo.render = function (context) {
let nodes = (context || document).querySelectorAll("[data-echo], [data-echo-background]");
let length = nodes.length;
let src, elem;
let view = {
@ -86,34 +88,34 @@
if (inView(elem, view)) {
if (unload) {
elem.setAttribute('data-echo-placeholder', elem.src);
elem.setAttribute("data-echo-placeholder", elem.src);
}
if (elem.getAttribute('data-echo-background') !== null) {
elem.style.backgroundImage = "url(" + elem.getAttribute('data-echo-background') + ")";
if (elem.getAttribute("data-echo-background") !== null) {
elem.style.backgroundImage = "url(" + elem.getAttribute("data-echo-background") + ")";
}
else {
elem.src = elem.getAttribute('data-echo');
else if (elem.src !== (src = elem.getAttribute("data-echo"))) {
elem.src = src;
}
if (!unload) {
elem.removeAttribute('data-echo');
elem.removeAttribute('data-echo-background');
elem.removeAttribute("data-echo");
elem.removeAttribute("data-echo-background");
}
callback(elem, 'load');
callback(elem, "load");
}
else if (unload && !!(src = elem.getAttribute('data-echo-placeholder'))) {
else if (unload && !!(src = elem.getAttribute("data-echo-placeholder"))) {
if (elem.getAttribute('data-echo-background') !== null) {
if (elem.getAttribute("data-echo-background") !== null) {
elem.style.backgroundImage = "url(" + src + ")";
}
else {
elem.src = src;
}
elem.removeAttribute('data-echo-placeholder');
callback(elem, 'unload');
elem.removeAttribute("data-echo-placeholder");
callback(elem, "unload");
}
}
if (!length) {
@ -123,9 +125,9 @@
echo.detach = function () {
if (document.removeEventListener) {
root.removeEventListener('scroll', debounceOrThrottle);
root.removeEventListener("scroll", debounceOrThrottle);
} else {
root.detachEvent('onscroll', debounceOrThrottle);
root.detachEvent("onscroll", debounceOrThrottle);
}
clearTimeout(poll);
};