// Google Translate в контекстном меню.......
(this.googletranslate = {
            init(that) {
                var lc = navigator.lastClick = {}, w = null, xhtmlns = 'http://www.w3.org/1999/xhtml';
                var mouseUp = (e) => {
                    if (e.button) return;
                    lc.X = e.screenX - mozInnerScreenX;
                    lc.Y = e.screenY - mozInnerScreenY;
                };
                gBrowser.tabpanels.addEventListener('mouseup', mouseUp, false);
                this.destructor = () => {
                    gBrowser.tabpanels.removeEventListener('mouseup', mouseUp, false);
                    if (w)
                        w.closeWin();
                };
                that.unloadlisteners.push("googletranslate");
                var createWindow = function(text, status, title, id, pos, size) {
                    var win = window, doc = win.document, wId = 'ujs_window'+(id || '');
                    w = doc.getElementById(wId);
                    var keyDown = function(e) {if (!e.shiftKey && !e.ctrlKey && !e.altKey && e.keyCode == 27)doc.getElementById(wId).closeWin();};
                    var mouseDown = function() {doc.getElementById(wId).closeWin();};

                    if (w)
                        w.closeWin();
                    w = doc.createElementNS(xhtmlns, 'div');
                    w.setAttribute('style', 'position:fixed;display:block;visibility:hidden;left:0;top:0;width:auto;height:auto;border:1px solid gray;padding:2px;margin:0;z-index:99999;overflow:hidden;cursor:move;'+(typeof w.style.borderRadius === 'string' ? 'background-color:#eaeaea;padding-top:0px;border-radius:4px;box-shadow:0 0 15px rgba(0,0,0,.4);' : 'background:-o-skin("Window Skin");'));
                    w.id = wId;
                    w.closeWin = function() {
                        doc.removeEventListener('keydown', keyDown, false);
                        gBrowser.tabpanels.removeEventListener('mousedown', mouseDown, false);
                        this.parentNode.removeChild(this);
                        w = null;
                    };
                    w.addEle = function(str, style) {
                        var ele = doc.createElementNS(xhtmlns, 'div');
                        ele.setAttribute('style', style);
                        if (str) {
                            ele.innerHTML = str;
                            for (var el, all = ele.getElementsByTagName('*'), i = all.length; i--;) {
                                el = all[i];
                                if (/^(script|frame|iframe|applet|embed|object)$/i.test(el.nodeName)) {
                                    el.parentNode.removeChild(el);
                                } else {
                                    for (var att = el.attributes, j = att.length; j--;) {
                                        if (/^on[a-z]+$/i.test(att[j].name))att[j].value = '';
                                    }
                                }
                            }
                        }
                        return this.appendChild(ele);
                    };
                    var img = doc.createElementNS(xhtmlns, 'div');
                    img.setAttribute('style', 'display:block;float:right;width:16px;height:16px;padding:0;margin-top:2px;margin-right:1px;border:none;cursor:pointer;background-image:url("data:image/png;base64,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");background:-o-skin("Caption Close Button Skin");');
                    img.title = (win.navigator.language.indexOf('ru') == 0) ? '\u0417\u0430\u043A\u0440\u044B\u0442\u044C' : 'Close';
                    img.addEventListener('click', function() {this.parentNode.closeWin();}, false);
                    w.appendChild(img);
                    var title = w.addEle(title, 'display:table;color:#000;font:17px Times New Roman;width:auto;height:auto;padding:0;margin:0 2px;cursor:text;');
                    title.onclick = e => {
                        e.preventDefault();
                        var url = e.target.href;
                        // Здесь открываем url как хотим.
                        var ctabpos = gBrowser.selectedTab._tPos +1;
                        gBrowser.moveTabTo(gBrowser.selectedTab = gBrowser.addWebTab(url), ctabpos);
                        doc.getElementById(wId).closeWin();
                    };
                    var cnt = doc.createElement("textarea");
                    cnt.style.cssText = `
                        color: #000;
                        width: 310px;
                        height: 160px;
                        outline: none;
                        padding-left: 3px;
                        padding-bottom: 3px;
                        border: 1px solid #aaa;
                        background-color: #fafcfe;
                        font: 17px Times New Roman;
                    `;
                    if (text) cnt.value = text;
                    w.append(cnt);
                    w.addEle(status, 'display:table;font:12px Times New Roman;font-weight:bold;color:blue;width:auto;height:auto;padding-top:2px;margin:0 3px;cursor:pointer;');
                    w.addEventListener('mousedown', function(e) {
                        if (e.target == w) {
                            e.preventDefault();
                            var grabX = e.clientX, grabY = e.clientY, origX = parseInt(w.style.left), origY = parseInt(w.style.top);
                            var mouseMove = function(ev) {
                                w.style.left = origX+ev.clientX-grabX+'px';
                                w.style.top = origY+ev.clientY-grabY+'px';
                            };
                            doc.addEventListener('mousemove', mouseMove, false);
                            doc.addEventListener('mouseup', function() {doc.removeEventListener('mousemove', mouseMove, false);}, false);
                        }
                    }, false);
                    doc.documentElement.appendChild(w);

                    if (size) {
                        cnt.style.height = size.height;
                        cnt.style.width = size.width;
                    } else {
                        for (var i = 3; i < 10; i++) {
                            if (cnt.scrollHeight > cnt.offsetHeight || cnt.scrollWidth > cnt.offsetWidth) {
                                cnt.style.height = 80*i+'px';
                                cnt.style.width = 160*i+'px';
                            } else
                                break;
                        }
                    }

                    var docEle = (doc.compatMode == 'CSS1Compat' && win.postMessage) ? doc.documentElement : doc.body;
                    var mX = docEle.clientWidth-w.offsetWidth, mY = docEle.clientHeight-w.offsetHeight;
                    if (mX < 0) {cnt.style.width = parseInt(cnt.style.width)+mX+'px'; mX = 0;}
                    if (mY < 0) {cnt.style.height = parseInt(cnt.style.height)+mY+'px'; mY =0;}
                    var hW = parseInt(w.offsetWidth/2);
                    w.style.left = (pos && pos.X < mX+hW ? (pos.X > hW ? pos.X-hW : 0) : mX)+'px';
                    w.style.top = (pos && pos.Y+10 < mY ? pos.Y+10 : mY)+'px';
                    w.style.visibility = 'visible';
                    doc.addEventListener('keydown', keyDown, false);
                    gBrowser.tabpanels.addEventListener('mousedown', mouseDown, false);
				 if (text) {
                    var st = cnt.style;
                    var div = cnt.editor.rootElement;

                    var range = new Range();
                    range.selectNode(div.firstChild);
                    var rect = range.getBoundingClientRect();

                    let w = Math.ceil(rect.width);
                    if (cnt.scrollTopMax) {
                       if (!matchMedia("(-moz-overlay-scrollbars)").matches) // ???
                          w += InspectorUtils.getChildrenForNode(div, true, false).at(-1).clientWidth;
                    }
                    else st.height = Math.max(50, Math.ceil(rect.height) + 2) + "px";

                    st.width = Math.max(200, w) + "px";
                    }
                    return w;
                };

                var getHash = function (txt) {
                    TKK=eval('((function(){var a\x3d817046147;var b\x3d-335196159;return 410049+\x27.\x27+(a+b)})())');
                    function sM(a) {
                        var b;
                        if (null !== yr)
                            b = yr;
                        else {
                            b = wr(String.fromCharCode(84));
                            var c = wr(String.fromCharCode(75));
                            b = [b(), b()];
                            b[1] = c();
                            b = (yr = window[b.join(c())] || "") || "";
                        }
                        var d = wr(String.fromCharCode(116)), c = wr(String.fromCharCode(107)), d = [d(), d()];
                        d[1] = c();
                        c = "&" + d.join("") + "=";
                        d = b.split(".");
                        b = Number(d[0]) || 0;
                        for (var e = [], f = 0, g = 0; g < a.length; g++) {
                            var l = a.charCodeAt(g);
                            128 > l ? e[f++] = l : (2048 > l ? e[f++] = l >> 6 | 192 : (55296 == (l & 64512) && g + 1 < a.length && 56320 == (a.charCodeAt(g + 1) & 64512) ? (l = 65536 + ((l & 1023) << 10) + (a.charCodeAt(++g) & 1023),
                            e[f++] = l >> 18 | 240,
                            e[f++] = l >> 12 & 63 | 128) : e[f++] = l >> 12 | 224,
                            e[f++] = l >> 6 & 63 | 128),
                            e[f++] = l & 63 | 128);
                        }
                        a = b;
                        for (f = 0; f < e.length; f++)
                            a += e[f],
                        a = xr(a, "+-a^+6");
                        a = xr(a, "+-3^+b+-f");
                        a ^= Number(d[1]) || 0;
                        0 > a && (a = (a & 2147483647) + 2147483648);
                        a %= 1E6;
                        return c + (a.toString() + "." + (a ^ b));
                    }

                    var yr = null;
                    var wr = function(a) {
                        return function() {
                            return a;
                        };
                    }, xr = function(a, b) {
                        for (var c = 0; c < b.length - 2; c += 3) {
                            var d = b.charAt(c + 2), d = "a" <= d ? d.charCodeAt(0) - 87 : Number(d), d = "+" == b.charAt(c + 1) ? a >>> d : a << d;
                            a = "+" == b.charAt(c) ? a + d & 4294967295 : a ^ d;
                        }
                        return a;
                    };
                    return sM(txt);
                };

                var ujs_google_translate = function (dir) {
                    var lng = window.navigator.language.slice(0, 2), txt = gContextMenu.selectionInfo.fullText, l = dir.split('|');
                    var encTxt = encodeURIComponent(txt);
                    var winWait = function(lng) {createWindow('', (lng == 'ru' ? 'Подождите идет перевод' : 'Wait, is going Translating')+'\u2026', 'Google Translate', '_gt', window.navigator.lastClick);};
                    if (txt) {
                        winWait(lng);
                        var xhr = new XMLHttpRequest();
                        var url = 'https://translate.google.com/translate_a/single?client=gtx&sl=' + l[0] + '&tl=' + l[1] + '&hl=' + lng + '&eotf=0&dt=at&dt=bd&dt=ex&dt=ld&dt=md&dt=qca&dt=rw&dt=rm&dt=ss&dt=t' + getHash(txt);
                        var urlt = "http://translate.google.com/translate_t?text="+encTxt+"&sl='  + langFrom_google_text + '&tl=' + langTo_google_text +'&hl=' + lng + '&eotf=0&ujs=gtt";
                        xhr.open('POST', url, true);
                        xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded;charset=utf-8');
                        xhr.onreadystatechange = function() {
                            try {
                                if (xhr.readyState == 4 && xhr.status == 200) {
                                    var result = '', status = '', tmp = JSON.parse(xhr.responseText.replace(/\[(?=,)/g, '[0').replace(/,(?=,|\])/g, ',0').replace(/\\n/g, ' '));
                                    for (var i = 0, n; n = tmp[0][i]; i++) {
                                        if (n[0])result += n[0].toString();
                                    };
                                   status = tmp[8][0][0].toUpperCase() + ' -\u203A ' + l[1].toUpperCase();
                                   createWindow(result, status, '<a href="'+urlt.replace(/&/g,'&amp;')+'" target="_blank" style="display:inline;padding:0;margin:0;text-decoration:none;border:none;color:#009;font:16px Times New Roman;">Google Translate</a>', '_gt', window.navigator.lastClick);
                                }
                            } catch(e) {};
                        };
                        xhr.send('q=' + encodeURIComponent(txt));
                    } else {
                        var urlt = gBrowser.currentURI.spec;
                        var url = "http://translate.google.com/translate?u="+encodeURIComponent(urlt)+'&tl='+l[1]+"&hl="+lng+"&langpair="+dir+"&tbb=1";
                        var ctabpos = gBrowser.selectedTab._tPos +1;
                        gBrowser.moveTabTo(gBrowser.selectedTab = gBrowser.addWebTab(url), ctabpos);
                    };
                };
                var contextMenu = document.getElementById("contentAreaContextMenu");
                var nextEleMenu = document.getElementById("context-inspect");

                var menuItem = document.createXULElement("menuitem");
                menuItem.setAttribute("id", "context-ru-google-translate");
                menuItem.setAttribute("label", "Перевести на русский");
                menuItem.setAttribute("class", "menuitem-iconic");
                var image = "data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16'><path fill='context-fill rgb(0, 116, 232)' fill-opacity='context-fill-opacity' d='M15.37 15H17l-3.63-8.54a.75.75 0 0 0-.69-.46h-.82c-.3 0-.58.18-.7.46L9.32 10.8l-.01-.01a10.8 10.8 0 0 1-3.27-2.2 12.38 12.38 0 0 0 2.54-4.18L9.08 3H10V1.5H5.75V0h-1.5v1.5H0V3h7.5l-.33.91c-.47 1.31-1.2 2.52-2.13 3.56-.7-.9-1.25-1.9-1.63-2.97H1.8l.18.48a12.43 12.43 0 0 0 1.97 3.56c-.9.75-1.89 1.35-2.96 1.78v1.58a12.3 12.3 0 0 0 3.96-2.26 12.31 12.31 0 0 0 3.77 2.54L7.53 15h1.64l1.06-2.5h4.08l1.06 2.5Zm-4.5-4 1.4-3.3 1.4 3.3h-2.8Z'/></svg>";
                var substitution = `ucf-${menuItem.id.toLowerCase()}-img`;
                var PHandler = Services.io.getProtocolHandler("resource")
               .QueryInterface(Ci.nsIResProtocolHandler);
               if (!PHandler.hasSubstitution(substitution))
                   PHandler.setSubstitution(substitution, Services.io.newURI(image));
                menuItem.style.cssText = `list-style-image:url("resource://${substitution}");-moz-context-properties:fill,fill-opacity;fill:currentColor;`;  menuItem.addEventListener("command", function() {ujs_google_translate('auto|ru');}, false);
                contextMenu.insertBefore(menuItem, nextEleMenu);
				
                contextMenu.insertBefore(document.createXULElement("menuseparator"), nextEleMenu);

                var translate = async () => {
                    var br = gBrowser.selectedBrowser;
                    var fw = Services.focus.focusedWindow;
                    if (fw == window) {
                        if (document.activeElement != br) return;
                    }
                    else if (fw.browsingContext.top != br.browsingContext) return;

                    var cb = navigator.clipboard;
                    var was = await cb.readText();
                    if (was) await cb.writeText("");

                    docShell.doCommand("cmd_copy");
                    await new Promise(r => setTimeout(r, 100));
                    var txt = await cb.readText();

                    if (txt || was) cb.writeText(was);
                    if (!txt && !br.currentURI.scheme.startsWith("http")) return;
                    window.gContextMenu = {selectionInfo: {
                        get fullText() {
                            window.gContextMenu = null;
                            return txt;
                        }
                    }};
                    ujs_google_translate("auto|ru");
                }
                var ts = 0, destr = this.destructor, args = ["keyup", e =>
                    e.key == "Control" && ts - (ts = Cu.now()) > -300
                    && !e.shiftKey && !e.altKey && translate(ts = 0)
                ];
                addEventListener(...args);
                this.destructor = () => destr(removeEventListener(...args));
            }
        }).init(this);