кнопка «Архив» для почты Яндекса

yandex-mail.archive.user.js

// ==UserScript==
// @name          «Yandex Mail Archive button»
// @namespace     gurugray
// @author        Sergey sergeev (gurugray)

// @version       0.2.4
// @homepage_url  https://raw.github.com/gist/2181532/yandex-mail.archive.user.js
// @description   Создаём кнопку «В архив» на web-почте Яндекса
// @include       http*://mail.yandex*/neo2/*

// ==/UserScript==

var __msgRegExp = /message\//,
    __showedButton = false,
    __archiveTitle = 'Архив',
    __buttonTitle = 'В архив';


setTimeout(function(){
    var initTime = setInterval(function(){
        if (!!_$('.block-toolbar:not([style^="display"]) img.b-ico_compose')[0]) {
            __init();
            clearInterval(initTime);
        }
    }, 500);
}, 1000);


function __eventLoop(){
    if ((__isMailChecked() || __isReadingMessage()) && !__isArchiveFolder()) {
         __showButton();
    } else {
         __hideButton();
    }
}

function __isReadingMessage(){
    return __msgRegExp.test(unsafeWindow.location.hash);
}

function _$(path) {
    return document.querySelectorAll(path);
}

function __init(){
    var a = document.createElement('a');
    a.className = 'b-toolbar__item b-toolbar__item_archive',
    a.href = '#archive';
    a.style.display = 'none';
    a.style.width = '5em';
    a.title = __buttonTitle;
    a.innerHTML = '<img class="b-ico b-ico_archive" src="https://mailstatic.yandex.net/neo2/5.6.21/static/lego/blocks/b-ico/b-ico.gif" style="background-position: -233px 0;"><span class="b-toolbar__item__label">'+__buttonTitle+'</span><span class="b-toolbar__item__selected b-toolbar__item__selected_left-border"></span><span class="b-toolbar__item__selected b-toolbar__item__selected_right-border"></span>';
    var chevron = _$('.block-toolbar:not([style^="display"]) .b-toolbar__block_chevron')[0];
    chevron.insertBefore(a, chevron.firstChild);

    __locationHash = unsafeWindow.location.hash;

    __addSingleEvents();
    setInterval(__eventLoop, 200);
}

function __isArchiveFolder(){
    var archive = _$('a.daria-action[title="'+__archiveTitle+'"]')[0];
    var folder = _$('.b-folders__folder_current a.b-folders__folder__link[title="'+__archiveTitle+'"]')[0];
    return (archive && archive.href == unsafeWindow.location) || (!!folder);
}

function __addSingleEvents(){
    _$('.b-toolbar__item_archive')[0].addEventListener('click', function(event){
        event.stopPropagation();
        event.preventDefault();

        try {
            _$('a.daria-action[title="'+__archiveTitle+'"]')[0].click();
        } catch (e) {
            var evObj = document.createEvent('Events');
            evObj.initEvent('click', true, false);
            _$('a.daria-action[title="'+__archiveTitle+'"]')[0].dispatchEvent(evObj);
        }
        return false;
    }, false);
}

function __showButton(){
    if (!__showedButton) {
        _$('.b-toolbar__item_archive')[0].style.display = 'inline-block';
        __showedButton = true;
    }
}

function __hideButton(){
    if (__showedButton) {
        _$('.b-toolbar__item_archive')[0].style.display = 'none';
        __showedButton = false;
    }
}

function __isMailChecked(){
    return ( !!_$('.block-messages:not([style^="display"]) .b-messages__message__checkbox__input:checked').length);
}