// ==UserScript==
// @name Instagram: Hide Image
// @name:zh-TW Instagram 隱藏圖片
// @name:zh-CN Instagram 隐藏图片
// @name:ja Instagram 画像を非表示
// @name:ko Instagram 이미지 숨기기
// @name:ru Instagram Скрыть изображение
// @version 1.0.2
// @description Make Instagram Images Opacity Lower.
// @description:zh-TW 調整 Instagram 圖片的透明度。
// @description:zh-CN 调整 Instagram 图片的透明度。
// @description:ja Instagram 画像の不透明度を低くします。
// @description:ko Instagram 이미지 불투명도를 낮추십시오.
// @description:ru Уменьшите непрозрачность изображений в Instagram.
// @author Hayao-Gai
// @namespace https://github.com/HayaoGai
// @icon https://i.imgur.com/obCmlr9.png
// @match https://www.instagram.com*
// @grant GM_getValue
// @grant GM_setValue
// @downloadURL none
// ==/UserScript==
/* jshint esversion: 6 */
(function() {
'use strict';
// icons made by https://www.flaticon.com/authors/pixel-perfect
const iconOn = ``;
const iconOff = ``;
// css
const textStyle = `
.switch-set {
margin-left: 20px;
}
.hide-set {
transition: opacity 0.3s;
}`;
// target
const targets = [
["img._6q-tv:not(.hide-set)", null],
["img.FFVAD:not(.hide-set)", "eLAPa"],
["video:not(.hide-set)", "kPFhm"]
];
// update
let updating = false;
css();
init(10);
locationChange();
window.addEventListener("scroll", update);
function init(times) {
for (let i = 0; i < times; i++) {
// switch
setTimeout(switchButton, 500 * i);
// hide
for (const target of targets) {
setTimeout(() => getTarget(target[0], target[1]), 500 * i);
}
}
// show
showTarget();
}
function switchButton() {
// check exist
if (!!document.querySelector(".switch-set")) return;
// panel
const panel = document.querySelector(".ctQZg");
if (!panel) return;
// switch
const button = document.createElement("button");
button.className = "dCJp8 afkep switch-set";
button.innerHTML = getSwitch() ? iconOn : iconOff;
button.addEventListener("click", onClick);
panel.appendChild(button);
}
function onClick() {
const afterClick = !getSwitch();
GM_setValue("switch", afterClick);
this.innerHTML = afterClick ? iconOn : iconOff;
init(3);
}
function getTarget(target, root) {
// check switch.
if (!getSwitch()) return;
// hide target.
document.querySelectorAll(target).forEach(t => {
t.classList.add("hide-set");
t.style.opacity = 0.1;
// the hover is at root.
if (!!root) {
if (!t.closest(`div.${root}`)) return;
const div = t.closest(`div.${root}`).lastElementChild;
div.addEventListener("mouseenter", addListener);
div.addEventListener("mouseleave", addListener);
return;
}
// no need to get root.
t.addEventListener("mouseenter", addListener);
t.addEventListener("mouseleave", addListener);
});
}
function showTarget() {
// check switch
if (getSwitch()) return;
// show
for (const target of targets) {
const tag = target[0].split(":")[0];
const root = target[1];
document.querySelectorAll(`${tag}.hide-set`).forEach(t => {
t.classList.remove("hide-set");
t.style.opacity = 1;
// the hover is at root.
if (!!root) {
if (!t.closest(`div.${root}`)) return;
const div = t.closest(`div.${root}`).lastElementChild;
div.removeEventListener("mouseenter", addListener);
div.removeEventListener("mouseleave", addListener);
return;
}
// no need to get root.
t.removeEventListener("mouseenter", addListener);
t.removeEventListener("mouseleave", addListener);
});
}
}
function getSwitch() {
return GM_getValue("switch", true);
}
function addListener() {
// the hover is at root.
if (this.tagName === "DIV") {
const target = this.parentElement.querySelector("img") || this.parentElement.querySelector("video");
if (!target) return;
target.style.opacity = target.style.opacity > 0.5 ? 0.1 : 1;
return;
}
// no need to get root.
this.style.opacity = this.style.opacity > 0.5 ? 0.1 : 1;
}
function css() {
const style = document.createElement("style");
style.type = "text/css";
style.innerHTML = textStyle;
document.head.appendChild(style);
}
function update() {
if (updating) return;
updating = true;
init(3);
setTimeout(() => { updating = false }, 1000);
}
function locationChange() {
window.addEventListener('locationchange', () => init(3));
// situation 1
history.pushState = ( f => function pushState(){
var ret = f.apply(this, arguments);
window.dispatchEvent(new Event('pushState'));
window.dispatchEvent(new Event('locationchange'));
return ret;
})(history.pushState);
// situation 2
history.replaceState = ( f => function replaceState(){
var ret = f.apply(this, arguments);
window.dispatchEvent(new Event('replaceState'));
window.dispatchEvent(new Event('locationchange'));
return ret;
})(history.replaceState);
// situation 3
window.addEventListener('popstate', () => window.dispatchEvent(new Event('locationchange')));
}
})();