Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

support srcset. #16

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

support srcset. #16

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 4 additions & 2 deletions lazy-load.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -30,11 +30,12 @@ function fetchImage(url) {
*/
function preloadImage(image) {
const src = image.dataset.src;
const srcset = image.srcset;
if (!src) {
Copy link

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

You need to check here for srcset too. Not sure if there are other instances that need the same.

return;
}

return fetchImage(src).then(() => { applyImage(image, src); });
return fetchImage(src).then(() => { applyImage(image, src, srcset); });
}

/**
Expand Down Expand Up @@ -90,10 +91,11 @@ function onIntersection(entries) {
* @param {object} img
* @param {string} src
*/
function applyImage(img, src) {
function applyImage(img, src, srcset) {
// Prevent this from being lazy loaded a second time.
img.classList.add(config.imageLoadedClass);
img.src = src;
img.srcset = srcset;
}

let LazyLoad = {
Expand Down