// ==UserScript==
// @name         vk.com/docs gallery
// @namespace    vk.com
// @version      0.0.1
// @description  gallery mode for VK docs
// @author       AHOHNMYC
// @match        https://vk.com/doc*
// @grant        GM_addStyle
// ==/UserScript==

if ( location.href.match('vk.com/docs') ) {
  document.getElementById('docs_search_more').style.display = 'block';
  GM_addStyle(`
.docs_item_actions, .docs_item_cont {display:none!important}
.docs_item_thumb_img, .docs_item_thumb {max-height: none !important; width: auto !important; height: auto !important}
.docs_item {padding: 0 0 0 6px !important; float: left}
.docs_item_thumb_wrap {margin-left: 0 !important; width:130px !important}
.docs_wrap {padding: 0 !important}
`);
} else {
    addButton('Профиль', ()=>location.href=location.href.match(/[^_]+/)[0].replace('doc', 'id'));
    addButton('Альбомы', ()=>location.href=location.href.match(/[^_]+/)[0].replace('doc', 'albums'));
    addButton('Фотки',   ()=>location.href=location.href.match(/[^_]+/)[0].replace('doc', 'photos'));
}

function addButton(text, callback) {
    let but = document.createElement('button');
    but.className = 'flat_button fl_r';
    but.textContent = text;
    but.addEventListener('click', callback);
    document.querySelector('.clear_fix').appendChild(but);
}