Inverter

Inverts webpages with a hotkey

目前為 2017-03-23 提交的版本,檢視 最新版本

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         Inverter
// @icon         http://i.imgur.com/wBrRGXc.png
// @namespace    skoshy.com
// @version      0.2.16
// @description  Inverts webpages with a hotkey
// @author       Stefan Koshy
// @run-at       document-start
// @match        *://*/*
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_deleteValue
// ==/UserScript==

var currentSite = '';
var scriptId = 'inverter';

var timers = {};
timers.lastToggle = 0; // default the last toggle to nothing

var options = {};
options.toggleDelayMs = 200; // number of milliseconds delay there needs to be to switch from toggle mode to save inversion mode

var css = {};
css.defaults = {};
css.overrides = {};

css.common = {};
css.common.css = `
html {
  filter: invert(1);
  min-height: 100%;
  background-color: black;
}

img, figure, video, picture {
  filter: invert(1);
}

figure img { /* no need to invert imgs in figures */
  filter: invert(0);
}

*[style*="url(/"],
*[style*="blob:"],
*[style*="url('https:"],
*[style*="url('http:"],
*[style*="url('://"],
*[style*="url('blob:"],
*[style*='url("https:'],
*[style*='url("https:'],
*[style*='url("http:'],
*[style*='url("://'],
*[style*='url("blob:']
{ filter: invert(1); }

body, body > div {
  background-color: white;
}

iframe[src*="youtube.com"], iframe[src*="vimeo.com"] {
  filter: invert(1);
}

twitterwidget::shadow .MediaCard-media {
  filter: invert(1);
}

twitterwidget::shadow .Avatar {
  filter: invert(1);
}

.gbii /* This is for multiple Google Domains to reinvert the profile icon in the top right */
{filter: invert(1);}
`;
css.messenger = {};
css.messenger.css = `
/* Custom CSS can go here */
._5l-3[id*="id_thread"] /* Group Chat icons */
{filter: invert(0);}
._2v6o, ._5eu7 /* Status Indicator underneath name in top bar */
{ color: rgba(0, 0, 0, .60); font-weight: 600; }
`;
css.gmail = {};
css.gmail.css = `
iframe[src*="hangouts.google.com"]
{ filter: invert(1); }
`;
css.inbox = {};
css.inbox.css = `
img[src*="ssl.gstatic.com"], img[src*="www.gstatic.com"]
{ filter: invert(0); }
nav#GH > .b4 /* Header bar, kepp the same color */
{ filter: invert(1); }
iframe[src*="hangouts.google.com"]
{ filter: invert(1); }
.cf /* Shipping notification headers */
{ filter: invert(1); }
.xW /* Shipping icon */
{ filter: invert(1) !important; }
`;
css.hangouts = {};
css.hangouts.enableInIframe = true;
css.hangouts.css = `
.Ik:not(.uB) /* Chat Headers */
{ filter: invert(1); }
`;
css.youtube = {};
css.youtube.css = `
.player-api video
{filter: inherit;}

#theater-background
{background: white !important;}

#player-playlist,
.player-api,
#c4-header-bg-container /* Banner on YouTube channel page */
{filter: invert(1);}

#player-playlist img,
#c4-header-bg-container img /* Banner on YouTube channel page */
{filter: invert(0);}

`;
css.facebook = {};
css.facebook.css = `
i /* Emoji and other small icons */
{filter: invert(1);}
`;
css.twitter = {};
css.twitter.css = `
.PermalinkOverlay-with-background /* overlay when clicking on a tweet */
{background: rgba(255,255,255,.55) !important;}

iframe
{background-color: white; filter: invert(1);}

.is-generic-video {
  filter: invert(1);
}
`;
css.soundcloud = {};
css.soundcloud.css = `
span[style]
`;
css.pocketcasts = {};
css.pocketcasts.css = `
#header {filter: invert(1);}
#audio_player {filter: invert(1); background-color: black;}

#header img {filter: invert(0);}
#audio_player img {filter: invert(0);}

#audio_player #audio_player_wrapper .player_top,
#audio_player #audio_player_wrapper .player_bottom
{background-color: transparent;}
`;
css.none = {};
css.none.css = ``;


function addGlobalStyle(css, id, enabled) {
    var head, style;
    head = document.getElementsByTagName('head')[0];
    if (!head) { return; }
    style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = css;
    style.id = id;
    head.appendChild(style);
    style.disabled = !enabled;
}

function parseCSS(parsed) {
    for (attribute in css.defaults) {
        exceptionToReplace = new RegExp('{{'+attribute+'}}', 'g');
        parsed = parsed.replace(exceptionToReplace, css['defaults'][attribute]);
    }

    return parsed;
}

document.addEventListener("keydown", function(e) {
  if (e.altKey === true && e.shiftKey === false && e.ctrlKey === true && e.metaKey === false && e.code == 'KeyI') {
  var timestamp = new Date();
  timestamp = timestamp.getTime();
  
  if (timers.lastToggle > timestamp-options.toggleDelayMs) {
    if (isInverterEnabled()) {
    GM_setValue('enabled_'+document.domain, true);
    alert('Saved inversion for '+document.domain);
    } else {
    GM_deleteValue('enabled_'+document.domain);
    alert('Deleted inversion setting for '+document.domain);
    }
  } else {
    // toggle style
    var cssEl = document.getElementById(scriptId+'-css');

    if (isInverterEnabled()) {
    cssEl.disabled = true;
    } else {
    cssEl.disabled = false;
    }
  }
  
  timers.lastToggle = timestamp;
  }
});

function isInverterEnabled() {
  var cssEl = document.getElementById(scriptId+'-css');
  return cssEl.disabled === false;
}

function getSetCurrentSite() {
    var url = document.documentURI;
  
  currentSite = 'none'

    if (url.indexOf('messenger.com') != -1) currentSite = 'messenger';
    if (url.indexOf('youtube.com') != -1) currentSite = 'youtube';
    if (url.indexOf('twitter.com') != -1) currentSite = 'twitter';
    if (url.indexOf('inbox.google.com') != -1) currentSite = 'inbox';
  if (url.indexOf('hangouts.google.com') != -1) currentSite = 'hangouts';
  if (url.indexOf('mail.google.com') != -1) currentSite = 'gmail';
  if (url.indexOf('facebook.com') != -1) currentSite = 'facebook';
  if (url.indexOf('play.pocketcasts.com') != -1) currentSite = 'pocketcasts';

  console.log('Detected site for '+scriptId+' script: '+currentSite);
  
    return currentSite;
}

function init() {
    getSetCurrentSite();

    var styleEnabled = GM_getValue( 'enabled_'+document.domain , false );
  
    console.log('Inversion Enabled for site ('+currentSite+'): '+styleEnabled);
    if (inIframe() && isFalsy(css[currentSite].enableInIframe)) { styleEnabled = false; }

    addGlobalStyle(parseCSS(
        css.common.css + css[currentSite].css
    ), scriptId+'-css', styleEnabled);
}

init();

/*
* Utility functions
*/

function isTruthy(item) {
  return !isFalsy(item);
}

function isFalsy(item) {
  if (
    !item
    || (typeof item == "object" && Object.keys(item).length == 0) // for empty objects, like {}, []
  )
    return true;
  else
    return false;
}

function addEvent(obj, evt, fn) {
    if (obj.addEventListener) {
        obj.addEventListener(evt, fn, false);
    }
    else if (obj.attachEvent) {
        obj.attachEvent("on" + evt, fn);
    }
}

function inIframe () {
    try {
        return window.self !== window.top;
    } catch (e) {
        return true;
    }
}