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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 = (function (w, d) {
'use strict';
// 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) {
(function (ElementPrototype) {
ElementPrototype.matches = ElementPrototype.matches ||
ElementPrototype.matchesSelector ||
ElementPrototype.webkitMatchesSelector ||
ElementPrototype.msMatchesSelector ||
function (selector) {
var node = this, nodes = (node.parentNode || node.document).querySelectorAll(selector), i = -1;
while (nodes[++i] && nodes[i] != node);
return !!nodes[i];
};
})(Element.prototype);
}
function callbackSafe (callback, el, e) {
try {
callback.call(el, e);
} catch (exception) {
console.log(exception);
}
}
var searxng = window.searxng || {};
searxng.on = function (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, function (e) {
var el = e.target || e.srcElement, found = false;
while (el && el.matches && el !== d && !(found = el.matches(obj))) el = el.parentElement;
if (found) callbackSafe(callback, el, e);
}, useCapture);
}
};
searxng.ready = function (callback) {
if (document.readyState != 'loading') {
callback.call(w);
} else {
w.addEventListener('DOMContentLoaded', callback.bind(w));
}
};
searxng.http = function (method, url, data = null) {
return new Promise(function (resolve, reject) {
try {
var req = new XMLHttpRequest();
req.open(method, url, true);
req.timeout = 20000;
// On load
req.onload = function () {
if (req.status == 200) {
resolve(req.response, req.responseType);
} else {
reject(Error(req.statusText));
}
};
// Handle network errors
req.onerror = function () {
reject(Error("Network Error"));
};
req.onabort = function () {
reject(Error("Transaction is aborted"));
};
req.ontimeout = function () {
reject(Error("Timeout"));
}
// Make the request
if (data) {
req.send(data)
} else {
req.send();
}
} catch (ex) {
reject(ex);
}
});
};
searxng.loadStyle = function (src) {
var path = searxng.settings.theme_static_path + "/" + src,
id = "style_" + src.replace('.', '_'),
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 = function (src, callback) {
var path = searxng.settings.theme_static_path + "/" + src,
id = "script_" + src.replace('.', '_'),
s = d.getElementById(id);
if (s === null) {
s = d.createElement('script');
s.setAttribute('id', id);
s.setAttribute('src', path);
s.onload = callback;
s.onerror = function () {
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 = function (newNode, referenceNode) {
referenceNode.parentNode.insertBefore(newNode, referenceNode);
};
searxng.insertAfter = function (newNode, referenceNode) {
referenceNode.parentNode.insertAfter(newNode, referenceNode.nextSibling);
};
searxng.on('.close', 'click', function () {
this.parentNode.classList.add('invisible');
});
function getEndpoint () {
for (var 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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