☰

Scroll to Bottom, Stay Button, and Auto-Reload with Persistence and Icons for reddit-stream.com

Adds a floating button to scroll to the bottom, checkboxes to stay at the bottom, and to reload the page every 10, 15, 20, or 30 seconds on reddit-stream.com, with persistent settings and icons for clarity.

当前为 2024-11-08 提交的版本，查看 最新版本。

// ==UserScript==
// @name         Scroll to Bottom, Stay Button, and Auto-Reload with Persistence and Icons for reddit-stream.com
// @namespace    https://github.com/Nick2bad4u/UserStyles
// @version      2.12
// @description  Adds a floating button to scroll to the bottom, checkboxes to stay at the bottom, and to reload the page every 10, 15, 20, or 30 seconds on reddit-stream.com, with persistent settings and icons for clarity.
// @author       Nick2bad4u
// @match        *://*.reddit-stream.com/*
// @grant        none
// @license      Unlicense
// @icon         https://www.google.com/s2/favicons?sz=64&domain=reddit-stream.com
// ==/UserScript==

(function () {
  "use strict";

  console.log(
    "Script initialized: Adding floating button, checkboxes, and persistence.",
  );

  // Helper function for hover effect
  function handleHover(element) {
    element.addEventListener("mouseover", function () {
      element.style.opacity = "1";
    });
    element.addEventListener("mouseout", function () {
      element.style.opacity = "0.1";
    });
    console.log(`Hover effect applied to element: ${element}`);
  }

  // Function to save checkbox state
  function saveCheckboxState(key, value) {
    localStorage.setItem(key, value);
    console.log(`Saved checkbox state for ${key}: ${value}`);
  }

  // Function to load checkbox state
  function loadCheckboxState(key) {
    const state = localStorage.getItem(key) === "true";
    console.log(`Loaded checkbox state for ${key}: ${state}`);
    return state;
  }

  // Styling for the checkboxes with hover title support for icons
  function styleCheckboxWrapper(wrapper, iconText, checkboxId, titleText) {
    wrapper.style.display = "flex";
    wrapper.style.flexDirection = "column";
    wrapper.style.alignItems = "center";
    wrapper.style.position = "fixed";
    wrapper.style.bottom = "20px";
    wrapper.style.zIndex = "1000";
    wrapper.style.cursor = "pointer";
    wrapper.style.opacity = "0.1";
    wrapper.style.transition = "opacity 0.3s";

    const label = document.createElement("label");
    label.htmlFor = checkboxId;
    label.style.cursor = "pointer";

    const icon = document.createElement("div");
    icon.innerHTML = iconText;
    icon.style.fontSize = "12px";
    icon.style.color = "orange";
    icon.style.marginTop = "5px";
    icon.title = titleText;

    label.appendChild(icon);
    wrapper.appendChild(label);
    handleHover(wrapper);

    console.log(
      `Checkbox wrapper styled with icon: ${iconText} and title: ${titleText}`,
    );
  }

  // Scroll-to-bottom button
  const button = document.createElement("button");
  button.innerHTML = "⬇️";
  button.style.position = "fixed";
  button.style.bottom = "20px";
  button.style.right = "20px"; // Changed from left to right
  button.style.zIndex = "1000";
  button.style.padding = "10px";
  button.style.borderRadius = "50%";
  button.style.border = "none";
  button.style.backgroundColor = "black";
  button.style.color = "blue";
  button.style.fontSize = "20px";
  button.style.cursor = "pointer";
  button.style.opacity = "0.5";
  button.style.transition = "opacity 0.3s";
  button.title = "Click to scroll to the bottom";
  handleHover(button);

  button.addEventListener("click", function () {
    globalThis.scrollTo({
      top: document.body.scrollHeight,
      behavior: "smooth",
    });
    console.log("Scroll-to-bottom button clicked, scrolling to the bottom.");
  });

  // Stay-at-bottom checkbox with icon
  const stayAtBottomWrapper = document.createElement("div");
  stayAtBottomWrapper.style.right = "60px"; // Changed from left to right
  const stayAtBottomCheckboxId = "stayAtBottomCheckbox";
  styleCheckboxWrapper(
    stayAtBottomWrapper,
    "🔽",
    stayAtBottomCheckboxId,
    "Check to stay at the bottom",
  );

  const stayAtBottomCheckbox = document.createElement("input");
  stayAtBottomCheckbox.type = "checkbox";
  stayAtBottomCheckbox.id = stayAtBottomCheckboxId;
  stayAtBottomCheckbox.checked = loadCheckboxState("stayAtBottom");
  stayAtBottomCheckbox.title = "Check to stay at the bottom";
  stayAtBottomWrapper.insertBefore(
    stayAtBottomCheckbox,
    stayAtBottomWrapper.firstChild,
  );

  stayAtBottomCheckbox.addEventListener("change", function () {
    saveCheckboxState("stayAtBottom", stayAtBottomCheckbox.checked);
  });

  let scrollTimeout;
  const debounce = (fn, delay) => {
    return function () {
      clearTimeout(scrollTimeout);
      scrollTimeout = setTimeout(fn, delay);
    };
  };

  const keepAtBottom = debounce(function () {
    if (stayAtBottomCheckbox.checked) {
      globalThis.scrollTo({
        top: document.body.scrollHeight,
        behavior: "smooth",
      });
      console.log("Auto-scrolling to the bottom (Stay at Bottom active).");
    } else {
      console.log("Auto-scrolling stopped (Stay at Bottom inactive).");
    }
  }, 200);

  const observer = new MutationObserver(keepAtBottom);
  observer.observe(document.body, {
    childList: true,
    subtree: true,
  });
  console.log("MutationObserver started for staying at the bottom.");

  // Auto-reload every 10 seconds checkbox with icon
  const autoReload10Wrapper = document.createElement("div");
  autoReload10Wrapper.style.right = "100px"; // Changed from left to right
  const autoReload10CheckboxId = "autoReload10Checkbox";
  styleCheckboxWrapper(
    autoReload10Wrapper,
    "10s",
    autoReload10CheckboxId,
    "Check to reload every 10 seconds",
  );

  const autoReload10Checkbox = document.createElement("input");
  autoReload10Checkbox.type = "checkbox";
  autoReload10Checkbox.id = autoReload10CheckboxId;
  autoReload10Checkbox.checked = loadCheckboxState("autoReload10");
  autoReload10Checkbox.title = "Check to reload every 10 seconds";
  autoReload10Wrapper.insertBefore(
    autoReload10Checkbox,
    autoReload10Wrapper.firstChild,
  );

  let reloadInterval10;

  function startAutoReload10() {
    reloadInterval10 = setInterval(() => {
      globalThis.location.reload();
      console.log("Page reloading every 10 seconds.");
    }, 10000);
  }

  if (autoReload10Checkbox.checked) startAutoReload10();

  autoReload10Checkbox.addEventListener("change", function () {
    saveCheckboxState("autoReload10", autoReload10Checkbox.checked);
    if (autoReload10Checkbox.checked) {
      startAutoReload10();
    } else {
      clearInterval(reloadInterval10);
      console.log("Stopped reloading every 10 seconds.");
    }
  });

  // Auto-reload every 15 seconds checkbox with icon
  const autoReload15Wrapper = document.createElement("div");
  autoReload15Wrapper.style.right = "140px"; // Changed from left to right
  const autoReload15CheckboxId = "autoReload15Checkbox";
  styleCheckboxWrapper(
    autoReload15Wrapper,
    "15s",
    autoReload15CheckboxId,
    "Check to reload every 15 seconds",
  );

  const autoReload15Checkbox = document.createElement("input");
  autoReload15Checkbox.type = "checkbox";
  autoReload15Checkbox.id = autoReload15CheckboxId;
  autoReload15Checkbox.checked = loadCheckboxState("autoReload15");
  autoReload15Checkbox.title = "Check to reload every 15 seconds";
  autoReload15Wrapper.insertBefore(
    autoReload15Checkbox,
    autoReload15Wrapper.firstChild,
  );

  let reloadInterval15;

  function startAutoReload15() {
    reloadInterval15 = setInterval(() => {
      globalThis.location.reload();
      console.log("Page reloading every 15 seconds.");
    }, 15000);
  }

  if (autoReload15Checkbox.checked) startAutoReload15();

  autoReload15Checkbox.addEventListener("change", function () {
    saveCheckboxState("autoReload15", autoReload15Checkbox.checked);
    if (autoReload15Checkbox.checked) {
      startAutoReload15();
    } else {
      clearInterval(reloadInterval15);
      console.log("Stopped reloading every 15 seconds.");
    }
  });

  // Auto-reload every 20 seconds checkbox with icon
  const autoReload20Wrapper = document.createElement("div");
  autoReload20Wrapper.style.right = "180px"; // Changed from left to right
  const autoReload20CheckboxId = "autoReload20Checkbox";
  styleCheckboxWrapper(
    autoReload20Wrapper,
    "20s",
    autoReload20CheckboxId,
    "Check to reload every 20 seconds",
  );

  const autoReload20Checkbox = document.createElement("input");
  autoReload20Checkbox.type = "checkbox";
  autoReload20Checkbox.id = autoReload20CheckboxId;
  autoReload20Checkbox.checked = loadCheckboxState("autoReload20");
  autoReload20Checkbox.title = "Check to reload every 20 seconds";
  autoReload20Wrapper.insertBefore(
    autoReload20Checkbox,
    autoReload20Wrapper.firstChild,
  );

  let reloadInterval20;

  function startAutoReload20() {
    reloadInterval20 = setInterval(() => {
      globalThis.location.reload();
      console.log("Page reloading every 20 seconds.");
    }, 20000);
  }

  if (autoReload20Checkbox.checked) startAutoReload20();

  autoReload20Checkbox.addEventListener("change", function () {
    saveCheckboxState("autoReload20", autoReload20Checkbox.checked);
    if (autoReload20Checkbox.checked) {
      startAutoReload20();
    } else {
      clearInterval(reloadInterval20);
      console.log("Stopped reloading every 20 seconds.");
    }
  });

  // Auto-reload every 30 seconds checkbox with icon
  const autoReload30Wrapper = document.createElement("div");
  autoReload30Wrapper.style.right = "220px"; // Changed from left to right
  const autoReload30CheckboxId = "autoReload30Checkbox";
  styleCheckboxWrapper(
    autoReload30Wrapper,
    "30s",
    autoReload30CheckboxId,
    "Check to reload every 30 seconds",
  );

  const autoReload30Checkbox = document.createElement("input");
  autoReload30Checkbox.type = "checkbox";
  autoReload30Checkbox.id = autoReload30CheckboxId;
  autoReload30Checkbox.checked = loadCheckboxState("autoReload30");
  autoReload30Checkbox.title = "Check to reload every 30 seconds";
  autoReload30Wrapper.insertBefore(
    autoReload30Checkbox,
    autoReload30Wrapper.firstChild,
  );

  let reloadInterval30;

  function startAutoReload30() {
    reloadInterval30 = setInterval(() => {
      globalThis.location.reload();
      console.log("Page reloading every 30 seconds.");
    }, 30000);
  }

  if (autoReload30Checkbox.checked) startAutoReload30();

  autoReload30Checkbox.addEventListener("change", function () {
    saveCheckboxState("autoReload30", autoReload30Checkbox.checked);
    if (autoReload30Checkbox.checked) {
      startAutoReload30();
    } else {
      clearInterval(reloadInterval30);
      console.log("Stopped reloading every 30 seconds.");
    }
  });

  // Append elements to the page
  document.body.appendChild(button);
  document.body.appendChild(stayAtBottomWrapper);
  document.body.appendChild(autoReload10Wrapper);
  document.body.appendChild(autoReload15Wrapper);
  document.body.appendChild(autoReload20Wrapper);
  document.body.appendChild(autoReload30Wrapper);
  console.log("All elements appended with styling and icons.");
})();

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