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demo1.js
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demo1.js
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import PhotoSwipe from "photoswipe";
import PhotoSwipeUIDefault from "photoswipe/src/js/ui/photoswipe-ui-default";
import TweenMax from "gsap/TweenMax";
import initPageTransitions from "./initPageTransitions";
import Util from "./utils/util";
/**
* demo.js
* http://www.codrops.com
*
* Licensed under the MIT license.
* http://www.opensource.org/licenses/mit-license.php
*
* Copyright 2019, Codrops
* http://www.codrops.com
*/
class Demo1 {
constructor() {
initPageTransitions();
this.initDemo();
this.initPhotoSwipeFromDOM(".my-gallery");
this.scaleGrid();
window.addEventListener(
"resize",
Util.debounce(() => {
this.scaleGrid();
}, 10)
);
}
initDemo() {
const { Back } = window;
this.easing = Back.easeInOut.config(1.7);
this.gridInner = document.querySelector(".grid__inner");
this.cursorWrapper = document.querySelector(".cursor-wrapper");
this.innerCursor = document.querySelector(".custom-cursor__inner");
this.outerCursor = document.querySelector(".custom-cursor__outer");
this.cursorWrapperBox = this.cursorWrapper.getBoundingClientRect();
this.innerCursorBox = this.innerCursor.getBoundingClientRect();
this.outerCursorBox = this.outerCursor.getBoundingClientRect();
document.addEventListener("mousemove", e => {
this.clientX = e.clientX;
this.clientY = e.clientY;
});
const render = () => {
TweenMax.set(this.cursorWrapper, {
x: this.clientX,
y: this.clientY
});
requestAnimationFrame(render);
};
requestAnimationFrame(render);
this.fullCursorSize = 40;
this.enlargeCursorTween = TweenMax.to(this.outerCursor, 0.3, {
backgroundColor: "transparent",
width: this.fullCursorSize,
height: this.fullCursorSize,
ease: this.easing,
paused: true
});
this.mainNavHoverTween = TweenMax.to(this.outerCursor, 0.3, {
backgroundColor: "#ffffff",
opacity: 0.3,
width: this.fullCursorSize,
height: this.fullCursorSize,
ease: this.easing,
paused: true
});
const handleMouseEnter = () => {
this.enlargeCursorTween.play();
};
const handleMouseLeave = () => {
this.enlargeCursorTween.reverse();
};
const gridItems = document.querySelectorAll(".grid__item");
gridItems.forEach(el => {
el.addEventListener("mouseenter", handleMouseEnter);
el.addEventListener("mouseleave", handleMouseLeave);
});
const pswpContainer = document.querySelector(".pswp__container");
pswpContainer.addEventListener("mouseenter", handleMouseEnter);
const mainNavItems = document.querySelectorAll(".content--fixed a");
mainNavItems.forEach(el => {
el.addEventListener("mouseenter", () => {
this.mainNavHoverTween.play();
});
el.addEventListener("mouseleave", () => {
this.mainNavHoverTween.reverse();
});
});
this.bumpCursorTween = TweenMax.to(this.outerCursor, 0.1, {
scale: 0.7,
paused: true,
onComplete: () => {
TweenMax.to(this.outerCursor, 0.2, {
scale: 1,
ease: this.easing
});
}
});
}
openGalleryActions() {
this.bumpCursorTween.play();
this.innerCursor.classList.add("is-closing");
this.cursorWrapper.classList.add("has-blend-mode");
this.cursorWrapper.classList.remove("is-outside");
}
closeGalleryactions() {
this.bumpCursorTween.play();
this.innerCursor.classList.remove("is-closing");
this.cursorWrapper.classList.remove("has-blend-mode");
setTimeout(() => {
const elementMouseIsOver = document.elementFromPoint(
this.clientX,
this.clientY
);
if (!elementMouseIsOver.classList.contains("grid__thumbnail")) {
this.enlargeCursorTween.reverse();
}
}, 400);
}
initPhotoSwipeFromDOM(gallerySelector) {
// parse slide data (url, title, size ...) from DOM elements
// (children of gallerySelector)
const parseThumbnailElements = el => {
const thumbElements = el.childNodes;
const numNodes = thumbElements.length;
const items = [];
let figureEl;
let linkEl;
let size;
let item;
for (let i = 0; i < numNodes; i++) {
figureEl = thumbElements[i]; // <figure> element
// include only element nodes
if (figureEl.nodeType !== 1) {
continue;
}
linkEl = figureEl.children[0]; // <a> element
size = linkEl.getAttribute("data-size").split("x");
// create slide object
item = {
src: linkEl.getAttribute("href"),
w: parseInt(size[0], 10),
h: parseInt(size[1], 10)
};
if (figureEl.children.length > 1) {
// <figcaption> content
item.title = figureEl.children[1].innerHTML;
}
if (linkEl.children.length > 0) {
// <img> thumbnail element, retrieving thumbnail url
item.msrc = linkEl.children[0].getAttribute("src");
}
item.el = figureEl; // save link to element for getThumbBoundsFn
items.push(item);
}
return items;
};
// find nearest parent element
const closest = function closest(el, fn) {
return el && (fn(el) ? el : closest(el.parentNode, fn));
};
// triggers when user clicks on thumbnail
const onThumbnailsClick = e => {
e = e || window.event;
e.preventDefault ? e.preventDefault() : (e.returnValue = false);
const eTarget = e.target || e.srcElement;
// find root element of slide
const clickedListItem = closest(eTarget, function(el) {
return el.tagName && el.tagName.toUpperCase() === "FIGURE";
});
if (!clickedListItem) {
return;
}
// find index of clicked item by looping through all child nodes
// alternatively, you may define index via data- attribute
var clickedGallery = clickedListItem.parentNode,
childNodes = clickedListItem.parentNode.childNodes,
numChildNodes = childNodes.length,
nodeIndex = 0,
index;
for (var i = 0; i < numChildNodes; i++) {
if (childNodes[i].nodeType !== 1) {
continue;
}
if (childNodes[i] === clickedListItem) {
index = nodeIndex;
break;
}
nodeIndex++;
}
if (index >= 0) {
// open PhotoSwipe if valid index found
openPhotoSwipe(index, clickedGallery);
}
return false;
};
// parse picture index and gallery index from URL (#&pid=1&gid=2)
const photoswipeParseHash = () => {
const hash = window.location.hash.substring(1);
const params = {};
if (hash.length < 5) {
return params;
}
const vars = hash.split("&");
for (let i = 0; i < vars.length; i++) {
if (!vars[i]) {
continue;
}
const pair = vars[i].split("=");
if (pair.length < 2) {
continue;
}
params[pair[0]] = pair[1];
}
if (params.gid) {
params.gid = parseInt(params.gid, 10);
}
return params;
};
const openPhotoSwipe = (
index,
galleryElement,
disableAnimation,
fromURL
) => {
const pswpElement = document.querySelectorAll(".pswp")[0];
const items = parseThumbnailElements(galleryElement);
// define options (if needed)
const options = {
// define gallery index (for URL)
galleryUID: galleryElement.getAttribute("data-pswp-uid"),
getThumbBoundsFn: ind => {
// See Options -> getThumbBoundsFn section of documentation for more info
const thumbnail = items[index].el.getElementsByTagName("img")[0]; // find thumbnail
const pageYScroll =
window.pageYOffset || document.documentElement.scrollTop;
const rect = thumbnail.getBoundingClientRect();
return { x: rect.left, y: rect.top + pageYScroll, w: rect.width };
},
captionEl: false,
closeEl: false,
arrowEl: false,
fullscreenEl: false,
shareEl: false,
counterEl: false,
zoomEl: false,
maxSpreadZoom: 1,
barsSize: { top: 80, bottom: 80, left: 40, right: 40 },
closeElClasses: [
"item",
"caption",
"zoom-wrap",
"ui",
"top-bar",
"img"
],
getDoubleTapZoom: (isMouseClick, item) => {
return item.initialZoomLevel;
},
pinchToClose: false
};
// PhotoSwipe opened from URL
if (fromURL) {
if (options.galleryPIDs) {
// parse real index when custom PIDs are used
// http://photoswipe.com/documentation/faq.html#custom-pid-in-url
for (let j = 0; j < items.length; j++) {
if (items[j].pid === index) {
options.index = j;
break;
}
}
} else {
// in URL indexes start from 1
options.index = parseInt(index, 10) - 1;
}
} else {
options.index = parseInt(index, 10);
}
// exit if index not found
if (isNaN(options.index)) {
return;
}
if (disableAnimation) {
options.showAnimationDuration = 0;
}
// Pass data to PhotoSwipe and initialize it
const gallery = new PhotoSwipe(
pswpElement,
PhotoSwipeUIDefault,
items,
options
);
gallery.init();
this.openGalleryActions();
gallery.listen("initialZoomOut", () => {});
gallery.listen("close", () => {
this.closeGalleryactions();
});
// Blend Mode Fix for Microsoft Edge
const addBlendModeFix = () => {
const container = gallery.currItem.container;
const image = Array.from(
container.querySelectorAll(".pswp__img")
).pop();
const mouseEnter = () => {
this.cursorWrapper.classList.remove("is-outside");
};
image.addEventListener("mouseenter", mouseEnter, false);
const mouseLeave = () => {
this.cursorWrapper.classList.add("is-outside");
};
image.addEventListener("mouseleave", mouseLeave, false);
};
gallery.listen("initialZoomInEnd", () => {
addBlendModeFix();
});
gallery.listen("afterChange", () => {
addBlendModeFix();
});
// End of Blend Mode Fix for Microsoft Edge
};
// loop through all gallery elements and bind events
const galleryElements = document.querySelectorAll(gallerySelector);
galleryElements.forEach((el, i) => {
el.setAttribute("data-pswp-uid", i + 1);
el.onclick = onThumbnailsClick;
});
// Parse URL and open gallery if it contains #&pid=3&gid=1
const hashData = photoswipeParseHash();
if (hashData.pid && hashData.gid) {
openPhotoSwipe(
hashData.pid,
galleryElements[hashData.gid - 1],
true,
true
);
}
}
scaleGrid() {
this.gridInner.style.transform = `scale(1)`;
const innerGridBox = this.gridInner.getBoundingClientRect();
const availableWidth = window.innerWidth - 70;
const availableHeight = window.innerHeight - 230;
const scale = Math.min(
availableWidth / innerGridBox.width,
availableHeight / innerGridBox.height
);
this.gridInner.style.transform = `scale(${scale})`;
}
}
export default Demo1;