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Implement infinite scroll using IntersectionObserver

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Pavel Djundik 2017-06-29 12:19:37 +03:00 committed by Jérémie Astori
parent 72a534f42b
commit 629592d641
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1 changed files with 25 additions and 0 deletions
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25
client/js/render.js
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@ -12,6 +12,11 @@ const condensed = require("./condensed");
const chat = $("#chat");
const sidebar = $("#sidebar");
const historyObserver = window.IntersectionObserver ?
new window.IntersectionObserver(loadMoreHistory, {
root: chat.get(0)
}) : null;
module.exports = {
appendMessage,
buildChannelMessages,
@ -145,6 +150,10 @@ function renderChannel(data) {
if (data.type === "channel") {
renderChannelUsers(data);
}
if (historyObserver) {
historyObserver.observe(chat.find("#chan-" + data.id + " .show-more").get(0));
}
}
function renderChannelMessages(data) {
@ -220,3 +229,19 @@ function renderNetworks(data) {
utils.toggleNotificationMarkers(true);
}
}
function loadMoreHistory(entries) {
entries.forEach((entry) => {
if (!entry.isIntersecting) {
return;
}
var target = $(entry.target).find(".show-more-button");
if (target.attr("disabled")) {
return;
}
target.click();
});
}