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/**
* @license
* (C) Copyright Contributors to the SearXNG project.
* (C) Copyright Contributors to the searx project (2014 - 2021).
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
window.searxng = ((w, d) => {
// not invented here toolkit with bugs fixed elsewhere
// purposes : be just good enough and as small as possible
// from https://plainjs.com/javascript/events/live-binding-event-handlers-14/
if (w.Element) {
((ElementPrototype) => {
ElementPrototype.matches =
ElementPrototype.matches ||
ElementPrototype.matchesSelector ||
ElementPrototype.webkitMatchesSelector ||
ElementPrototype.msMatchesSelector ||
function (selector) {
const nodes = (this.parentNode || this.document).querySelectorAll(selector);
let i = -1;
while (nodes[++i] && nodes[i] !== this);
return !!nodes[i];
};
})(Element.prototype);
}
function callbackSafe(callback, el, e) {
try {
callback.call(el, e);
} catch (exception) {
console.log(exception);
}
}
const searxng = window.searxng || {};
searxng.on = (obj, eventType, callback, useCapture) => {
useCapture = useCapture || false;
if (typeof obj !== "string") {
// obj HTMLElement, HTMLDocument
obj.addEventListener(eventType, callback, useCapture);
} else {
// obj is a selector
d.addEventListener(
eventType,
(e) => {
let el = e.target || e.srcElement;
let found = false;
while (el?.matches && el !== d) {
found = el.matches(obj);
if (found) break;
el = el.parentElement;
}
if (found) {
callbackSafe(callback, el, e);
}
},
useCapture
);
}
};
searxng.ready = (callback) => {
if (document.readyState !== "loading") {
callback.call(w);
} else {
w.addEventListener("DOMContentLoaded", callback.bind(w));
}
};
searxng.http = (method, url, data = null) =>
new Promise((resolve, reject) => {
try {
const req = new XMLHttpRequest();
req.open(method, url, true);
req.timeout = 20000;
// On load
req.onload = () => {
if (req.status === 200) {
resolve(req.response, req.responseType);
} else {
reject(Error(req.statusText));
}
};
// Handle network errors
req.onerror = () => {
reject(Error("Network Error"));
};
req.onabort = () => {
reject(Error("Transaction is aborted"));
};
req.ontimeout = () => {
reject(Error("Timeout"));
};
// Make the request
if (data) {
req.send(data);
} else {
req.send();
}
} catch (ex) {
reject(ex);
}
});
searxng.loadStyle = (src) => {
const path = `${searxng.settings.theme_static_path}/${src}`;
const id = `style_${src.replace(".", "_")}`;
let s = d.getElementById(id);
if (s === null) {
s = d.createElement("link");
s.setAttribute("id", id);
s.setAttribute("rel", "stylesheet");
s.setAttribute("type", "text/css");
s.setAttribute("href", path);
d.body.appendChild(s);
}
};
searxng.loadScript = (src, callback) => {
const path = `${searxng.settings.theme_static_path}/${src}`;
const id = `script_${src.replace(".", "_")}`;
let s = d.getElementById(id);
if (s === null) {
s = d.createElement("script");
s.setAttribute("id", id);
s.setAttribute("src", path);
s.onload = callback;
s.onerror = () => {
s.setAttribute("error", "1");
};
d.body.appendChild(s);
} else if (!s.hasAttribute("error")) {
try {
callback.apply(s, []);
} catch (exception) {
console.log(exception);
}
} else {
console.log(`callback not executed : script '${path}' not loaded.`);
}
};
searxng.insertBefore = (newNode, referenceNode) => {
referenceNode.parentNode.insertBefore(newNode, referenceNode);
};
searxng.insertAfter = (newNode, referenceNode) => {
referenceNode.parentNode.insertAfter(newNode, referenceNode.nextSibling);
};
searxng.on(".close", "click", function () {
this.parentNode.classList.add("invisible");
});
function getEndpoint() {
for (const className of d.getElementsByTagName("body")[0].classList.values()) {
if (className.endsWith("_endpoint")) {
return className.split("_")[0];
}
}
return "";
}
searxng.endpoint = getEndpoint();
return searxng;
})(window, document);
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