Some fixes for Youtube polymer engine
当前为
// ==UserScript==
// @name Youtube polymer engine fixes
// @description Some fixes for Youtube polymer engine
// @namespace bo.gd.an[at]rambler.ru
// @version 1.0.0
// @match https://www.youtube.com/*
// @compatible firefox 56
// @author Bogudan
// @grant none
// @run-at document-end
// ==/UserScript==
//debug helper:
//window.YTFixes = {};
(function() {
'use strict';
function gebi (id) {
return document.getElementById (id);
}
// test local storage availability (required for settings saving) and load settings
let settings = {}, ls;
try {
function lsTest (st, v) {
st.setItem ('__fix_test__', v);
return st.getItem ('__fix_test__') == v;
};
let _s = window.localStorage;
if (lsTest (_s, 'qwe') && lsTest (_s, 'rty')) { // do 2 times just in case LS stored value once, but does not let change it later
ls = _s;
settings = JSON.parse (ls.getItem ('__fix__settings__')) || {};
}
}
catch (e) { }
// delete old settings
if ("default_player_640" in settings) {
settings.default_player = settings.default_player_640 ? 3 : 0;
delete settings.default_player_640;
}
if ("reduce_thumbnail" in settings) {
settings.thumbnail_size = settings.reduce_thumbnail ? 2 : 0;
delete settings.reduce_thumbnail;
}
// set default values
if (!("align_player" in settings))
settings.align_player = 0;
if (!("default_player" in settings))
settings.default_player = 0;
if (!("hide_guide" in settings))
settings.hide_guide = true;
if (!("hide_yt_suggested_blocks" in settings))
settings.hide_yt_suggested_blocks = true;
if (!("logo_target" in settings))
settings.logo_target = "";
if (!("reduce_font" in settings))
settings.reduce_font = true;
if (!("theater_player" in settings))
settings.theater_player = 0;
if (!("thumbnail_size" in settings))
settings.thumbnail_size = 2;
if (!("thumbnail_size_m" in settings))
settings.thumbnail_size_m = 720;
if (!("unfix_header" in settings))
settings.unfix_header = true;
console.log ('fix settings:', settings);
// catch "settings" page
if (document.location.pathname == '/fix-settings') {
document.title = "YouTube Polymer Fixes: Settings";
let plane = document.createElement ('div'), e1, e2;
plane.className = 'ytfix';
let style = document.createElement ('style');
style.type = 'text/css';
style.innerHTML = [
'.ytfix{position:absolute;left:0;top:0;right:0;bottom:0;background:#eee;padding:3em}',
'.ytfix_line{margin:1em}',
'.ytfix_line span,.ytfix_line input,.ytfix_line select{margin-right:1em}',
'.ytfix_field{padding:0.2em;border:1px solid #888}',
'.ytfix_button{padding:0.4em;border:1px solid #888}',
'.ytfix_hide{display:none}'
].join ('');
plane.appendChild (style);
function AddLine () {
let q = document.createElement ('div');
q.className = 'ytfix_line';
for (let i = 0, L = arguments.length; i < L; ++i)
q.appendChild (arguments [i]);
plane.appendChild (q);
return q;
}
e1 = document.createElement ('b');
e1.appendChild (document.createTextNode ('YouTube Polymer Fixes: Settings'));
AddLine (e1);
if (!ls) {
e1 = document.createElement ('span');
e1.style = 'color:red';
e1.appendChild (document.createTextNode ('Cannot edit settings: no access to local storage.'));
AddLine (e1);
e1 = document.createElement ('span');
e1.appendChild (document.createTextNode ('If you are using Firefox, allow cookies for this site.'));
AddLine (e1);
}
else {
let ess = {};
function MakeDesc (desc) {
let e = document.createElement ('span');
e.appendChild (document.createTextNode (desc));
return e;
}
function MakeBoolElement (nm) {
let e = document.createElement ('input');
e.type = 'checkbox';
e.checked = settings [nm];
ess [nm] = e;
return e;
}
function MakeListElement (nm, opts) {
let e = document.createElement ('select');
e.className = 'ytfix_field';
ess [nm] = e;
for (let i = 0, L = opts.length; i < L; ++i) {
let o = document.createElement ('option');
o.appendChild (document.createTextNode (opts [i]));
//if (i == val)
// o.setAttribute ('selected', '');
e.appendChild (o);
}
e.selectedIndex = settings [nm];
return e;
}
function MakeTextElement (nm) {
let e = document.createElement ('input');
e.className = 'ytfix_field';
e.value = settings [nm];
ess [nm] = e;
return e;
}
AddLine (MakeBoolElement ("hide_guide"), MakeDesc ('Hide "Guide" menu when page opens'));
AddLine (MakeBoolElement ("reduce_font"), MakeDesc ("Reduce font size in video descriptions"));
let tsm = MakeTextElement ("thumbnail_size_m");
tsm.className = settings.thumbnail_size == 5 ? 'ytfix_field' : 'ytfix_hide';
let tsi = MakeListElement ("thumbnail_size", ['default', '180px', '240px', '360px', '480px', 'manual']);
tsi.addEventListener ('change', function () {
ess.thumbnail_size_m.className = ess.thumbnail_size.selectedIndex == 5 ? 'ytfix_field' : 'ytfix_hide';
});
AddLine (MakeDesc ('Set thumbnails size for front page'), tsi, tsm);
AddLine (MakeDesc ("Set player size in default mode"), MakeListElement ("default_player", ['default', '256x144px', '426x240px', '640x360px', '853x480px', '1280x720px']));
AddLine (MakeDesc ("Set player size in theater mode"), MakeListElement ("theater_player", ['default', '256x144px', '426x240px', '640x360px', '853x480px', '1280x720px']));
AddLine (MakeBoolElement ("hide_yt_suggested_blocks"), MakeDesc ('Hide YouTube suggestions blocks like "Recommended playlists" or "Latest YouTube posts"'));
AddLine (MakeBoolElement ("unfix_header"), MakeDesc ("Unstick header bar from top of the screen"));
AddLine (MakeDesc ("Align resized player into it's container (normal and theater modes)"), MakeListElement ("align_player", ['center', 'left', 'right']));
AddLine (MakeDesc ("Change YT logo target to https://www.youtube.com/..."), MakeTextElement ("logo_target"));
e1 = document.createElement ('input');
e1.type = 'button';
e1.className = 'ytfix_button';
e1.value = 'Save settings and return to YouTube';
e1.addEventListener ('click', function () {
settings.hide_guide = ess.hide_guide.checked;
settings.reduce_font = ess.reduce_font.checked;
settings.thumbnail_size = ess.thumbnail_size.selectedIndex;
if (settings.thumbnail_size == 5) {
let v = ess.thumbnail_size_m.value;
if (!/^\d+$/.test (v)) {
alert ('Error: invalid value for thumbnails size');
return;
}
settings.thumbnail_size_m = parseInt (v);
}
settings.default_player = ess.default_player.selectedIndex;
settings.theater_player = ess.theater_player.selectedIndex;
settings.hide_yt_suggested_blocks = ess.hide_yt_suggested_blocks.checked;
settings.unfix_header = ess.unfix_header.checked;
settings.align_player = ess.align_player.selectedIndex;
settings.logo_target = ess.logo_target.value;
ls.setItem ('__fix__settings__', JSON.stringify (settings));
alert ('Settings saved');
history.back ();
});
e2 = document.createElement ('input');
e2.type = 'button';
e2.className = 'ytfix_button';
e2.value = 'Return to YouTube without saving';
e2.addEventListener ('click', function () {
history.back ();
});
AddLine (e1, e2);
}
document.body.appendChild (plane);
return;
}
// apply settings
let styles = [], intervals = [];
function addInterval (period, func, params) {
if (!period)
period = 1;
intervals.push ({ cnt: period, period: period, call: func, params: params || [] });
}
if (settings.hide_guide) {
let guide_button = gebi ('guide-button');
if (guide_button) {
let tmp = guide_button.getElementsByTagName ('button');
if (tmp.length) {
tmp = tmp [0].attributes;
if (tmp && tmp ['aria-pressed'].value == 'true')
guide_button.click ();
}
}
// old engine:
if (gebi ('appbar-guide-button'))
document.documentElement.classList.remove ('show-guide');
}
if (settings.reduce_font) {
styles.push ('#video-title.ytd-rich-grid-video-renderer,#text.ytd-channel-name,#metadata-line.ytd-video-meta-block{font-size:14px!important;line-height:1.2em!important}');
// fix: "not interested" placeholder bigger than original element by about 40%
styles.push ('paper-button.style-blue-text{padding:0!important}');
}
if (settings.thumbnail_size)
styles.push ('ytd-rich-item-renderer{width:' + [0, 180, 240, 360, 480, settings.thumbnail_size_m] [settings.thumbnail_size] + 'px!important}');
if (settings.hide_yt_suggested_blocks)
styles.push ('div#contents.ytd-rich-grid-renderer ytd-rich-section-renderer{display:none!important}');
if (settings.unfix_header)
styles.push ('div#masthead-container.ytd-app,ytd-mini-guide-renderer.ytd-app,ytd-feed-filter-chip-bar-renderer,app-drawer#guide{position:absolute!important}');
styles.push ([
'#player-theater-container{margin-left:auto!important;margin-right:auto!important}',
'#player-container-outer{margin-left:0!important}',
'#player-container-outer{margin-right:0!important}#player-theater-container{margin-left:auto!important}',
] [settings.align_player]);
const sizes = [undefined, { w: 256, h: 244 }, { w: 427, h: 240 }, { w: 640, h: 360 }, { w: 854, h: 480 }, { w: 1280, h: 720 }];
let size_norm = sizes [settings.default_player];
if (size_norm)
styles.push ('#player-container-outer{min-width:' + size_norm.w + 'px!important;max-width:' + size_norm.w + 'px!important}');
let size_theater = sizes [settings.theater_player];
if (size_theater)
styles.push ('#player-theater-container{min-width:' + size_theater.w + 'px!important;max-width:' + size_theater.w + 'px!important;max-height:' + size_theater.h + 'px!important}');
if (size_norm || size_theater)
addInterval (1, function (sn, st) {
let eq = document.getElementsByTagName ("ytd-watch-flexy");
if (!eq.length)
return;
let s = eq [0].hasAttribute ('theater') ? st : sn;
if (!s)
return;
let ep = document.getElementById ("movie_player");
if (ep && ep.setInternalSize && ep.isFullscreen && !ep.isFullscreen () && ep.getPlayerSize && ep.getPlayerSize ().width != s [0])
ep.setInternalSize (s [0], s [1]);
}, [size_norm, size_theater]);
if (settings.logo_target) {
let X = settings.logo_target;
if (X [0] != '/')
X = '/' + X;
X = document.location.origin + X;
addInterval (1, function (url) {
let l = document.querySelectorAll ('a#logo');
for (let i = l.length; --i >= 0; )
if (l [i].href != url) {
l [i].href = url;
l [i].data.commandMetadata.webCommandMetadata.url = url;
}
}, [X]);
}
// "settings" button
// can't store created button: Polymer overrides it's content on soft reload leaving tags in place
// but can store element that Polymer does not know how to deal with and just drops
let settingsButtonMark;
function createSettingsButton () {
if (settingsButtonMark && settingsButtonMark.parentNode)
return;
let toolBar = document.getElementsByTagName ('ytd-topbar-menu-button-renderer');
let _1st = toolBar [0];
if (!_1st)
return;
toolBar = _1st.parentNode;
let sb = document.createElement ('ytd-topbar-menu-button-renderer');
sb.className = 'style-scope ytd-masthead style-default';
sb.setAttribute ('use-keyboard-focused', '');
sb.setAttribute ('is-icon-button', '');
sb.setAttribute ('has-no-text', '');
toolBar.insertBefore (sb, toolBar.childNodes [0]);
let mark = document.createElement ('fix-settings-mark');
mark.style = 'display:none';
toolBar.insertBefore (mark, sb); // must be added to parent node of buttons in order to Polymer dropped it on soft reload
let icb = document.createElement ('yt-icon-button');
icb.id = 'button';
icb.className = 'style-scope ytd-topbar-menu-button-renderer style-default';
let aa = document.createElement ('a');
aa.className = 'yt-simple-endpoint style-scope ytd-topbar-menu-button-renderer';
aa.setAttribute ('tabindex', '-1');
aa.href = '/fix-settings';
aa.appendChild (icb);
sb.getElementsByTagName ('div') [0].appendChild (aa); // created by YT scripts
let bb = icb.getElementsByTagName ('button') [0]; // created by YT scripts
bb.setAttribute ('aria-label', 'fixes settings');
let ic = document.createElement ('yt-icon');
ic.className = 'style-scope ytd-topbar-menu-button-renderer';
bb.appendChild (ic);
let gpath = document.createElementNS ('http://www.w3.org/2000/svg', 'path');
gpath.className.baseVal = 'style-scope yt-icon';
gpath.setAttribute ('d', 'M1 20l6-6h2l11-11v-1l2-1 1 1-1 2h-1l-11 11v2l-6 6h-1l-2-2zM13 15l2-2 8 8v1l-1 1h-1zM9 11l2-2-2-2 1.5-3-3-3h-2l3 3-1.5 3-3 1.5-3-3v2l3 3 3-1.5z');
let svgg = document.createElementNS ('http://www.w3.org/2000/svg', 'g');
svgg.className.baseVal = 'style-scope yt-icon';
svgg.appendChild (gpath);
let svg = document.createElementNS ('http://www.w3.org/2000/svg', 'svg');
svg.className.baseVal = 'style-scope yt-icon';
svg.setAttributeNS (null, 'viewBox', '0 0 24 24');
svg.setAttributeNS (null, 'preserveAspectRatio', 'xMidYMid meet');
svg.setAttribute ('focusable', 'false');
svg.setAttribute ('style', 'pointer-events: none; display: block; width: 100%; height: 100%;');
svg.appendChild (svgg);
ic.appendChild (svg); // YT clears *ic
settingsButtonMark = mark;
}
addInterval (1, createSettingsButton, []);
// styles
addInterval (1, function () {
if (styles.length == 0 || !document.body)
return;
let style_element = document.createElement ('style');
style_element.type = 'text/css';
style_element.innerHTML = styles.join ('');
document.body.appendChild(style_element);
styles = [];
}, []);
// intervals
setInterval (function () {
for (let i = intervals.length; --i >= 0; ) {
let Q = intervals [i];
if (--Q.cnt > 0)
continue;
Q.call.apply (this, Q.params);
Q.cnt = Q.period;
}
}, 1000);
}) ();
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