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+/**
+* searx is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Affero General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* searx is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU Affero General Public License for more details.
+*
+* You should have received a copy of the GNU Affero General Public License
+* along with searx. If not, see < http://www.gnu.org/licenses/ >.
+*
+* (C) 2017 by Alexandre Flament, <alex@al-f.net>
+*
+*/
+(function(w, d, searx) {
+
+ 'use strict';
+
+ // not invented here tookit 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);
+ }
+ }
+
+ searx = searx || {};
+
+ searx.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);
+ }
+ };
+
+ searx.ready = function(callback) {
+ if (document.readyState != 'loading') {
+ callback.call(w);
+ } else {
+ w.addEventListener('DOMContentLoaded', callback.bind(w));
+ }
+ };
+
+ searx.http = function(method, url, callback) {
+ var req = new XMLHttpRequest(),
+ resolve = function() {},
+ reject = function() {},
+ promise = {
+ then: function(callback) { resolve = callback; return promise; },
+ catch: function(callback) { reject = callback; return promise; }
+ };
+
+ try {
+ req.open(method, url, true);
+
+ // 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"));
+ };
+
+ // Make the request
+ req.send();
+ } catch (ex) {
+ reject(ex);
+ }
+
+ return promise;
+ };
+
+ searx.loadStyle = function(src) {
+ var path = searx.staticPath + 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);
+ }
+ };
+
+ searx.loadScript = function(src, callback) {
+ var path = searx.staticPath + 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.");
+ }
+ };
+
+ searx.on('.close', 'click', function(e) {
+ var el = e.target || e.srcElement;
+ this.parentNode.style.display="None";
+ });
+ return searx;
+})(window, document, window.searx);