Instagram Keyboard Shortcuts for Power User

Scroll through posts with J/K keys, like with L, save with O, control videos with U/I/M/Space.

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         Instagram Keyboard Shortcuts for Power User
// @namespace    http://tampermonkey.net/
// @version      2.6.1
// @description  Scroll through posts with J/K keys, like with L, save with O, control videos with U/I/M/Space.
// @author       French Bond
// @license      MIT
// @match        https://www.instagram.com/*
// @grant        none
// @icon         https://www.google.com/s2/favicons?sz=64&domain=instagram.com
// @require      https://code.jquery.com/jquery-3.4.1.min.js
// ==/UserScript==

// Credits:
// Thanks to Med X for improvements to input field focus tracking

/* globals jQuery, $ */
/* jshint esversion: 6 */

$(function () {
  'use strict';

  let seeAll = true;
  let currentArticle = null;
  let searchFocused = false;
  let scrolling = false;
  let slideshowInterval;
  let isSlideshow = false;

  const fastForward = 2;
  const rewind = 1;
  const headerHeight = 10;
  const scrollSpeed = 200;

  // ----------------------------
  // Helper Functions
  // ----------------------------

  function startSlideshow() {
    isSlideshow = true;
    slideshowInterval = setInterval(() => {
      findAndClickButton('Next');
    }, 5000);
  }

  function stopSlideshow() {
    isSlideshow = false;
    clearInterval(slideshowInterval);
  }

  // Track focus on input fields to avoid interfering with typing
  $(document).on(
    'focus',
    'input, textarea, [contenteditable="true"], [role="textbox"]',
    () => {
      searchFocused = true;
    }
  );
  $(document).on(
    'blur',
    'input, textarea, [contenteditable="true"], [role="textbox"]',
    () => {
      searchFocused = false;
    }
  );

  // Function to determine the current page
  function getCurrentPage() {
    const url = window.location.href;
    if (url === 'https://www.instagram.com/') return 'home';
    if (url.includes('?variant=favorites')) return 'favorites';
    if (url.includes('?variant=following')) return 'following';
    if (url.includes('/reels/')) return 'reels';
    if (url.includes('/p/')) return 'post';
    if (url.includes('/saved/')) return 'saved';
    if (url.includes('/explore/')) return 'explore';
    if (url.includes('/accounts/')) return 'profile';
    if (url.includes('/explore/tags/')) return 'tag';
    if (url.includes('/explore/locations/')) return 'location';
    if (url.includes('/tv/')) return 'igtv';
    return 'unknown';
  }

  // Function to check if an element is visible
  function isVisible(element) {
    if (!element) return false;

    const style = window.getComputedStyle(element);

    // Check if the element has zero size
    const hasSize = !!(
      element.offsetWidth ||
      element.offsetHeight ||
      element.getClientRects().length
    );

    // Check visibility-related CSS properties
    const isNotHidden =
      style.display !== 'none' &&
      style.visibility !== 'hidden' &&
      style.opacity !== '0';

    return hasSize && isNotHidden;
  }

  // Function to find and control video
  function findAndControlVideo(action) {
    const video = $(currentArticle).find('video')[0];
    if (video) {
      switch (action) {
        case 'playPause':
          video.paused ? video.play() : video.pause();
          break;
        case 'rewind':
          video.currentTime -= rewind;
          break;
        case 'fastForward':
          video.currentTime += fastForward;
          break;
        case 'muteUnmute':
          const muteButton = $(currentArticle).find(
            '[aria-label="Toggle audio"]'
          );
          if (muteButton.length) muteButton.click();
          break;
      }
    }
  }

  function findTopVideo() {
    let closestVideo = null;
    let closestDistance = Infinity;
    $('video').each(function () {
      const rect = this.getBoundingClientRect();
      const distance = Math.abs(rect.top);
      if (distance < closestDistance) {
        closestDistance = distance;
        closestVideo = this;
      }
    });
    return closestVideo;
  }

  function scrollTo(pageY) {
    scrolling = true;
    $('html, body').animate(
      { scrollTop: pageY },
      {
        duration: scrollSpeed,
        done: () => {
          scrolling = false;
        },
      }
    );
  }

  // Function to find and click a button
  function findAndClickButton(ariaLabel) {
    const button =
      document.querySelector(`article button[aria-label="${ariaLabel}"]`) ||
      document.querySelector(`button:has(svg[aria-label="${ariaLabel}"])`) ||
      document.querySelector(`div.html-div button[aria-label="${ariaLabel}"]`);

    button?.click();
  }

  // ----------------------------
  // Keyboard Shortcuts
  // ----------------------------

  function homeKeyboardShortcuts(e) {
    switch (e.keyCode) {
      case 65: // A - Toggle see all
        seeAll = !seeAll;
        break;
      case 74: // J - Scroll down or next post
        if (seeAll && $(currentArticle).find('[aria-label="Next"]').length) {
          $(currentArticle).find('[aria-label="Next"]').click();
        } else {
          $('article').each(function (index, article) {
            const top = $(article).offset().top - headerHeight;
            if (isVisible(article) && top > $(window).scrollTop() + 1) {
              scrollTo(top);
              currentArticle = article;
              return false;
            }
          });
        }
        break;
      case 75: // K - Scroll up
        if (seeAll && $(currentArticle).find('[aria-label="Go Back"]').length) {
          $(currentArticle).find('[aria-label="Go Back"]').click();
        } else {
          let previousArticle = null;
          $('article').each(function (index, article) {
            const top = $(article).offset().top - headerHeight;
            if (
              isVisible(article) &&
              top > $(window).scrollTop() - headerHeight - 20
            ) {
              if (previousArticle) {
                scrollTo($(previousArticle).offset().top - headerHeight);
                currentArticle = previousArticle;
              }
              return false;
            }
            previousArticle = article;
          });
        }
        break;
      case 76: // L - Like
        $('[aria-label="Like"],[aria-label="Unlike"]', currentArticle)
          .parent()
          .click();
        break;
      case 79: // O - Save
        const firstElement = $(
          '[aria-label="Save"],[aria-label="Remove"]',
          currentArticle
        )[0];
        $(firstElement).parent().click();
        break;
      case 32: // Space - Play/pause video
        findAndControlVideo('playPause');
        break;
      case 85: // U - Rewind
        findAndControlVideo('rewind');
        break;
      case 73: // I - Fast forward
        findAndControlVideo('fastForward');
        break;
      case 77: // M - Mute/unmute video
        findAndControlVideo('muteUnmute');
        break;
    }
  }

  function postKeyboardShortcuts(e) {
    switch (e.keyCode) {
      case 74: // J - Next
        findAndClickButton('Next');
        break;
      case 75: // K - Previous
        findAndClickButton('Go back');
        break;
      case 32: // Space - Toggle slideshow
        isSlideshow ? stopSlideshow() : startSlideshow();
        break;
    }
  }

  // Keyboard shortcuts for Reels page
  function reelsKeyboardShortcuts(e) {
    switch (e.keyCode) {
      case 39: // Right arrow - Fast forward
        const videoFF = findTopVideo();
        if (videoFF) videoFF.currentTime += fastForward;
        break;
      case 37: // Left arrow - Rewind
        const videoRW = findTopVideo();
        if (videoRW) videoRW.currentTime -= rewind;
        break;
    }
  }

  // ----------------------------
  // Main Keydown Handler
  // ----------------------------
  $('body').keydown(function (e) {
    // Disable if searchFocused, scrolling, or focus is in a contenteditable element (or its parent)
    if (
      searchFocused ||
      scrolling ||
      $(e.target).closest(
        '[contenteditable="true"], input, textarea, [role="textbox"]'
      ).length > 0
    )
      return;

    // Ignore browser/system shortcuts
    if (e.ctrlKey || e.altKey || e.metaKey) return;

    const handledKeys = [65, 74, 75, 76, 79, 32, 85, 73, 77, 37, 39]; // A, J, K, L, O, Space, U, I, M, Left, Right
    if (handledKeys.includes(e.keyCode)) {
      e.preventDefault();
      document.activeElement.blur();
    }

    const currentPage = getCurrentPage();
    console.log('Current page:', currentPage);

    switch (currentPage) {
      case 'home':
      case 'favorites':
      case 'following':
        homeKeyboardShortcuts(e);
        break;
      case 'reels':
        reelsKeyboardShortcuts(e);
        break;
      case 'post':
        postKeyboardShortcuts(e);
        break;
    }
  });
});