discourse/public/javascripts/embed-topics.js

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(function () {
function postMessageReceived(e) {
if (!e) {
return;
}
if (e.data && e.data.type === "discourse-resize" && e.data.embedId) {
var elem = document.getElementById(e.data.embedId);
if (elem) {
elem.height = e.data.height + "px";
}
}
}
window.addEventListener("message", postMessageReceived, false);
document.addEventListener("DOMContentLoaded", function (event) {
var lists = document.querySelectorAll("d-topics-list");
for (var i = 0; i < lists.length; i++) {
var list = lists[i];
var url = list.getAttribute("discourse-url");
if (!url || url.length === 0) {
console.error("Error, `discourse-url` was not found");
continue;
}
var frameId = "de-" + Math.random().toString(36).substr(2, 9);
var params = ["discourse_embed_id=" + frameId];
list.removeAttribute("discourse-url");
for (var j = 0; j < list.attributes.length; j++) {
var attr = list.attributes[j];
params.push(attr.name.replace("-", "_") + "=" + attr.value);
}
var iframe = document.createElement("iframe");
iframe.src = url + "/embed/topics?" + params.join("&");
iframe.id = frameId;
iframe.frameBorder = 0;
iframe.scrolling = "no";
list.appendChild(iframe);
}
});
})();