YouTube: Floating Chat Window on Fullscreen

To make floating chat window on fullscreen

目前為 2023-07-22 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        YouTube: Floating Chat Window on Fullscreen
// @namespace   UserScript
// @match       https://www.youtube.com/*
// @exclude             /^https?://\S+\.(txt|png|jpg|jpeg|gif|xml|svg|manifest|log|ini)[^\/]*$/
// @version     0.2.2
// @license             MIT License
// @author              CY Fung
// @description To make floating chat window on fullscreen
// @require             https://greasyfork.org/scripts/465819-api-for-customelements-in-youtube/code/API%20for%20CustomElements%20in%20YouTube.js?version=1215161
// @run-at              document-start
// @grant               none
// @unwrap
// @allFrames           true
// @inject-into         page
// ==/UserScript==


((__CONTEXT__) => {

  const hkey_script = 'vdnvorrwsksy';


  const { isIframe, isTopFrame } = (() => {

    let isIframe = false, isTopFrame = false;
    try {
      isIframe = window.document !== top.document
    } catch (e) { }

    try {
      isTopFrame = window.document === top.document
    } catch (e) { }

    return { isIframe, isTopFrame };

  })();

  if (isIframe ^ isTopFrame) { } else return;

  if (isTopFrame) {



    const createStyleText = () => `


[floating-chat-window]:fullscreen ytd-live-chat-frame#chat:not([collapsed]) {
  position:fixed !important;
    top: var(--f3-top, 5px) !important;
    left: var(--f3-left, calc(60vw + 100px)) !important;
    height: var(--f3-h, 60vh) !important;
    width: var(--f3-w, 320px) !important;
    display:flex !important;
    flex-direction: column !important;
    padding: 4px;
    cursor: all-scroll;
    z-index:9999;
    box-sizing: border-box !important;
    margin:0 !important;
    opacity: var(--floating-window-opacity, 1.0) !important;
    background: transparent;
    background-color: rgba(0, 0, 0, 0.5);
    transition: background-color 300ms;
}

[floating-chat-window]:fullscreen ytd-live-chat-frame#chat:not([collapsed]):hover {
    background-color: rgba(0, 0, 0, 0.85);

}

.no-floating[floating-chat-window]:fullscreen ytd-live-chat-frame#chat:not([collapsed]) {

    top: -300vh !important;
    left: -300vh !important;
}


[floating-chat-window]:fullscreen ytd-live-chat-frame#chat:not([collapsed]) #show-hide-button[class]{
    flex-grow: 0;
    flex-shrink:0;
    position:static;
    cursor: all-scroll;
}
[floating-chat-window]:fullscreen ytd-live-chat-frame#chat:not([collapsed]) #show-hide-button[class] *[class]{
    cursor: inherit;
}
[floating-chat-window]:fullscreen ytd-live-chat-frame#chat:not([collapsed]) iframe[class]{
    flex-grow: 100;
    flex-shrink:0;
    height: 0;
    position:static;
}


html{
    --fc7-handle-color: #0cb8da;
}
html[dark]{
    --fc7-handle-color: #0c74e4;
}

:fullscreen .resize-handle {

    position: absolute !important;
    top: 0;
    left: 0;
    bottom: 0;
    background: transparent;
    right: 0;
    z-index: 999 !important;
    border-radius: inherit !important;
    box-sizing: border-box !important;
    pointer-events:none !important;
    visibility: collapse;
    border: 4px solid transparent;
    border-color: transparent;
    transition: border-color 300ms;
}

[floating-chat-window]:fullscreen ytd-live-chat-frame#chat:not([collapsed]):hover .resize-handle {

    visibility: visible;

    border-color: var(--fc7-handle-color);
}

[moving] {
    cursor: all-scroll;
    --pointer-events:initial;
}

[moving] body {
    --pointer-events:none;
}

[moving] ytd-live-chat-frame#chat{

    --pointer-events:initial;
}


[moving] ytd-live-chat-frame#chat iframe {

    --pointer-events:none;
}


[moving="move"]  ytd-live-chat-frame#chat {
    background-color: var(--yt-spec-general-background-a);

}


[moving="move"] ytd-live-chat-frame#chat iframe {

    visibility: collapse;
}

[moving] * {
    pointer-events:var(--pointer-events) !important;

}
[moving] *, [moving] [class] {
    user-select: none !important;
}

:fullscreen tyt-iframe-popup-btn{
    display: none !important;
}

[moving] tyt-iframe-popup-btn{
    display: none !important;
}

[floating-chat-window]:fullscreen ytd-live-chat-frame#chat:not([collapsed]) #show-hide-button.ytd-live-chat-frame>ytd-toggle-button-renderer.ytd-live-chat-frame {

  background: transparent;

}



  `;

    const addCSS = () => {
      let text = createStyleText();
      let style = document.createElement('style');
      style.id = 'rvZ0t';
      style.textContent = text;
      document.head.appendChild(style);
    }

    const { Promise, requestAnimationFrame } = __CONTEXT__;

    let chatWindowWR = null;
    let showHideButtonWR = null;


    /* globals WeakRef:false */

    /** @type {(o: Object | null) => WeakRef | null} */
    const mWeakRef = typeof WeakRef === 'function' ? (o => o ? new WeakRef(o) : null) : (o => o || null); // typeof InvalidVar == 'undefined'

    /** @type {(wr: Object | null) => Object | null} */
    const kRef = (wr => (wr && wr.deref) ? wr.deref() : wr);



    let startX;
    let startY;
    let startWidth;
    let startHeight;


    let edge = 0;


    let initialLeft;
    let initialTop;

    let stopResize;
    let stopMove;


    const getXY = (e) => {
      let rect = e.target.getBoundingClientRect();
      let x = e.clientX - rect.left; //x position within the element.
      let y = e.clientY - rect.top;  //y position within the element.
      return { x, y }
    }

    let beforeEvent = null;

    function resizeWindow(e) {


      const chatWindow = kRef(chatWindowWR);
      if (chatWindow) {

        const mEdge = edge;

        if (mEdge == 4 || mEdge == 1) {

        } else if (mEdge == 8 || mEdge == 16) {
        } else {
          return;
        }


        Promise.resolve(chatWindow).then(chatWindow => {
          let rect;

          if (mEdge == 4 || mEdge == 1 || mEdge == 16) {

            let newWidth = startWidth + (startX - e.pageX);

            let newLeft = initialLeft + startWidth - newWidth;
            chatWindow.style.setProperty('--f3-w', newWidth + "px");
            chatWindow.style.setProperty('--f3-left', newLeft + "px");



            let newHeight = startHeight + (startY - e.pageY);

            let newTop = initialTop + startHeight - newHeight;
            chatWindow.style.setProperty('--f3-h', newHeight + "px");
            chatWindow.style.setProperty('--f3-top', newTop + "px");

            rect = {
              x: newLeft,
              y: newTop,
              w: newWidth,

              h: newHeight,


            };



          } else if (mEdge == 8) {

            let newWidth = startWidth + e.pageX - startX;
            let newHeight = startHeight + e.pageY - startY;

            chatWindow.style.setProperty('--f3-w', newWidth + "px");
            chatWindow.style.setProperty('--f3-h', newHeight + "px");


            rect = {
              x: initialLeft,
              y: initialTop,
              w: newWidth,

              h: newHeight,


            };

          }



          updateOpacity(chatWindow, rect, screen);

        })


        e.stopPropagation();
        e.preventDefault();


      }

    }

    function moveWindow(e) {


      const chatWindow = kRef(chatWindowWR);
      if (chatWindow) {

        Promise.resolve(chatWindow).then(chatWindow => {


          let newX = initialLeft + e.pageX - startX;
          let newY = initialTop + e.pageY - startY;

          chatWindow.style.setProperty('--f3-left', newX + "px");
          chatWindow.style.setProperty('--f3-top', newY + "px");



          updateOpacity(chatWindow, {
            x: newX,
            y: newY,
            w: startWidth,

            h: startHeight,


          }, screen);

        });



        e.stopPropagation();
        e.preventDefault();

      }
    }




    function initializeResize(e) {

      if (!document.fullscreenElement) return;

      if (!document.querySelector('[floating-chat-window]:fullscreen ytd-live-chat-frame#chat:not([collapsed])')) return;

      if (e.target.id !== 'chat') return;



      const { x, y } = getXY(e);
      edge = 0;
      if (x < 16 && y < 16) { edge = 16; }
      else if (x < 16) edge = 4;
      else if (y < 16) edge = 1;
      else edge = 8;

      if (edge <= 0) return;

      startX = e.pageX;
      startY = e.pageY;

      const chatWindow = kRef(chatWindowWR);
      if (chatWindow) {

        Promise.resolve(chatWindow).then(chatWindow => {

          let rect = chatWindow.getBoundingClientRect();
          initialLeft = rect.x;
          initialTop = rect.y;



          startWidth = rect.width;
          startHeight = rect.height;


          chatWindow.style.setProperty('--f3-left', initialLeft + "px");
          chatWindow.style.setProperty('--f3-top', initialTop + "px");
          chatWindow.style.setProperty('--f3-w', startWidth + "px");
          chatWindow.style.setProperty('--f3-h', startHeight + "px");

        });

      }




      document.documentElement.setAttribute('moving', 'resize');

      document.documentElement.removeEventListener("mousemove", resizeWindow, false);
      document.documentElement.removeEventListener("mousemove", moveWindow, false);
      document.documentElement.removeEventListener("mouseup", stopResize, false);
      document.documentElement.removeEventListener("mouseup", stopMove, false);

      document.documentElement.addEventListener("mousemove", resizeWindow);
      document.documentElement.addEventListener("mouseup", stopResize);

    }


    let updateOpacityRid = 0;

    function updateOpacity(chatWindow, rect, screen) {

      let tid = ++updateOpacityRid;

      requestAnimationFrame(() => {


        if (tid !== updateOpacityRid) return;

        let { x, y, w, h } = rect;
        let [left, top, right, bottom] = [x, y, x + w, y + h];


        let opacityW = (Math.min(right, screen.width) - Math.max(0, left)) / w;
        let opacityH = (Math.min(bottom, screen.height) - Math.max(0, top)) / h;

        let opacity = Math.min(opacityW, opacityH);

        chatWindow.style.setProperty('--floating-window-opacity', Math.round(opacity * 100 * 5, 0) / 5 / 100);


      })





    }

    function initializeMove(e) {

      if (!document.fullscreenElement) return;
      if (!document.querySelector('[floating-chat-window]:fullscreen ytd-live-chat-frame#chat:not([collapsed])')) return;



      const chatWindow = kRef(chatWindowWR);



      startX = e.pageX;
      startY = e.pageY;


      if (chatWindow) {

        Promise.resolve(chatWindow).then(chatWindow => {


          let rect = chatWindow.getBoundingClientRect();
          initialLeft = rect.x;
          initialTop = rect.y;



          startWidth = rect.width;
          startHeight = rect.height;


          chatWindow.style.setProperty('--f3-left', initialLeft + "px");
          chatWindow.style.setProperty('--f3-top', initialTop + "px");
          chatWindow.style.setProperty('--f3-w', startWidth + "px");
          chatWindow.style.setProperty('--f3-h', startHeight + "px");

        })


      }



      document.documentElement.setAttribute('moving', 'move');

      document.documentElement.removeEventListener("mousemove", resizeWindow, false);
      document.documentElement.removeEventListener("mousemove", moveWindow, false);
      document.documentElement.removeEventListener("mouseup", stopResize, false);
      document.documentElement.removeEventListener("mouseup", stopMove, false);

      document.documentElement.addEventListener("mousemove", moveWindow, false);
      document.documentElement.addEventListener("mouseup", stopMove, false);

      e.stopPropagation();
      e.preventDefault();

      beforeEvent = e;

    }


    function checkClick(beforeEvent, currentEvent) {

      const d = currentEvent.timeStamp - beforeEvent.timeStamp;
      if (d < 300 && d > 30) {

        document.documentElement.classList.add('no-floating');

      }

    }


    stopResize = (e) => {

      document.documentElement.removeAttribute('moving');
      document.documentElement.removeEventListener("mousemove", resizeWindow);
    }

    stopMove = (e) => {
      document.documentElement.removeAttribute('moving');
      document.documentElement.removeEventListener("mousemove", moveWindow);

      beforeEvent && checkClick(beforeEvent, e);
      beforeEvent = null;
    }


    function reset() {

      document.documentElement.removeAttribute('moving');
      document.documentElement.removeEventListener("mousemove", resizeWindow, false);
      document.documentElement.removeEventListener("mousemove", moveWindow, false);
      document.documentElement.removeEventListener("mouseup", stopResize, false);
      document.documentElement.removeEventListener("mouseup", stopMove, false);


      startX = 0;
      startY = 0;
      startWidth = 0;
      startHeight = 0;


      edge = 0;


      initialLeft = 0;
      initialTop = 0;

      beforeEvent = null;


    }

    function iframeLoaded() {

    }

    function iframeFullscreenChanged() {
      const iframeDoc = this;


      if (!document.fullscreenElement) {
        iframeDoc.documentElement.classList.remove('youtube-floating-chat-iframe');
      } else {
        iframeDoc.documentElement.classList.add('youtube-floating-chat-iframe');

      }


    }

    let iframeFullscreenChangedBinded = null;



    function onMessage(evt) {
      if (evt.data === 'vdnvorrwsksy') {

        const iframeWin = evt.source;
        const iframeDoc = iframeWin.document;



        function onReady() {

          iframeDoc.head.appendChild(document.createElement('style')).textContent = `

        .youtube-floating-chat-iframe #right-arrow-container.yt-live-chat-ticker-renderer,
        .youtube-floating-chat-iframe #left-arrow-container.yt-live-chat-ticker-renderer

        {
          background: transparent;
        }

.youtube-floating-chat-iframe yt-live-chat-renderer.yt-live-chat-app {

  --yt-live-chat-background-color: transparent;
  --yt-live-chat-action-panel-background-color: rgba(0, 0, 0, 0.08);
  --yt-live-chat-header-background-color: rgba(0, 0, 0, 0.18);
  --yt-spec-static-overlay-background-medium: rgba(0, 0, 0, 0.08);
  --yt-live-chat-banner-gradient-scrim: transparent;

}




.youtube-floating-chat-iframe yt-live-chat-renderer.yt-live-chat-app #visible-banners > yt-live-chat-banner-renderer {
  --fc7-banner-opacity: 0.86;
}

.youtube-floating-chat-iframe yt-live-chat-renderer.yt-live-chat-app #visible-banners > yt-live-chat-banner-renderer[collapsed] {
  --fc7-banner-opacity: 0.66;
}


.youtube-floating-chat-iframe yt-live-chat-renderer.yt-live-chat-app:hover #visible-banners > yt-live-chat-banner-renderer[class] {
  --fc7-banner-opacity: 1;
}


.youtube-floating-chat-iframe yt-live-chat-renderer.yt-live-chat-app {
  --fc7-system-message-opacity: 0.66;

}

.youtube-floating-chat-iframe yt-live-chat-renderer.yt-live-chat-app:hover {
  --fc7-system-message-opacity: 1.0;

}


.youtube-floating-chat-iframe yt-live-chat-renderer.yt-live-chat-app #visible-banners > yt-live-chat-banner-renderer {
  opacity: var(--fc7-banner-opacity) !important;
}


.youtube-floating-chat-iframe yt-live-chat-renderer.yt-live-chat-app yt-live-chat-viewer-engagement-message-renderer {
  opacity: var(--fc7-system-message-opacity) !important;
}


.youtube-floating-chat-iframe yt-live-chat-renderer.yt-live-chat-app:not(:hover) yt-live-chat-message-input-renderer {
 display: none;
}

.youtube-floating-chat-iframe yt-live-chat-renderer.yt-live-chat-app:hover yt-live-chat-message-input-renderer {

    position: absolute;
    transform: translateY(-100%);
    left: 0;
    right: 0;
    opacity: 1;
    background: rgba(0,0,0,0.86);
    }











[dark].youtube-floating-chat-iframe yt-live-chat-app ::-webkit-scrollbar-track,
[dark].youtube-floating-chat-iframe yt-live-chat-kevlar-container ::-webkit-scrollbar-track {
    background-color: var(--ytd-searchbox-legacy-button-color);
}

.youtube-floating-chat-iframe yt-live-chat-app ::-webkit-scrollbar-track,
.youtube-floating-chat-iframe yt-live-chat-kevlar-container ::-webkit-scrollbar-track {
    background-color: #fcfcfc;
}


[dark].youtube-floating-chat-iframe yt-live-chat-app ::-webkit-scrollbar-thumb,
[dark].youtube-floating-chat-iframe yt-live-chat-kevlar-container ::-webkit-scrollbar-thumb{

    background-color: var(--ytd-searchbox-legacy-button-color);
    border: 2px solid var(--ytd-searchbox-legacy-button-color);

}


/* hide message */
.youtube-floating-chat-iframe yt-live-chat-app:not(:hover) > tp-yt-iron-dropdown.yt-live-chat-app yt-tooltip-renderer[slot="dropdown-content"][position-type="OPEN_POPUP_POSITION_TOP"].yt-live-chat-app {
  visibility: collapse;
}



        `;


          if (iframeFullscreenChangedBinded) document.removeEventListener('fullscreenchange', iframeFullscreenChangedBinded, false);
          iframeFullscreenChangedBinded = iframeFullscreenChanged.bind(iframeDoc);
          document.addEventListener('fullscreenchange', iframeFullscreenChangedBinded, false);

          iframeFullscreenChangedBinded();


        }



        Promise.resolve().then(() => {

          if (iframeDoc.readyState !== 'loading') {
            onReady();
          } else {
            iframeWin.addEventListener("DOMContentLoaded", onReady, false);
          }

        });


      }

    }


    function setChat(chat) {

      let resizeHandle = HTMLElement.prototype.querySelector.call(chat, '.resize-handle')
      if (resizeHandle) return;



      let cw = (() => {
        try {
          const { head, body } = chat.$.chatframe.contentWindow.document;
          return { head, body }

        } catch (e) { return null; }
      })();

      if (!cw) return;

      window.removeEventListener('message', onMessage, false);
      window.addEventListener('message', onMessage, false);



      let script = document.getElementById('rvZ0t') || (document.evaluate("//div[contains(text(), 'userscript-control[enable-customized-floating-window]')]", document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null) || 0).singleNodeValue;
      if (!script) addCSS();

      if (!document.documentElement.hasAttribute('floating-chat-window')) document.documentElement.setAttribute('floating-chat-window', '');


      chat.setAttribute('allowtransparency', 'true');



      resizeHandle = document.createElement("div");
      resizeHandle.className = "resize-handle";
      chat.appendChild(resizeHandle);
      resizeHandle = null;

      let chatWindow;
      let showHideButton;

      chatWindow = kRef(chatWindowWR);
      showHideButton = kRef(showHideButtonWR);



      if (chatWindow) chatWindow.removeEventListener("mousedown", initializeResize, false);
      if (showHideButton) showHideButton.removeEventListener("mousedown", initializeMove, false);


      chatWindow = chat;
      showHideButton = HTMLElement.prototype.querySelector.call(chat, '#show-hide-button');
      chatWindowWR = mWeakRef(chat)
      showHideButtonWR = mWeakRef(showHideButton);



      chatWindow.addEventListener("mousedown", initializeResize, false);
      showHideButton.addEventListener("mousedown", initializeMove, false);

      reset();

    }


    const fullscreenchangePageFn = () => {
      if (!document.fullscreenElement) {
        document.documentElement.classList.remove('no-floating')
      }
    };

    function noChat(chat) {

      let chatWindow;
      let showHideButton;

      chatWindow = kRef(chatWindowWR);
      showHideButton = kRef(showHideButtonWR);



      if (chatWindow) chatWindow.removeEventListener("mousedown", initializeResize, false);
      if (showHideButton) showHideButton.removeEventListener("mousedown", initializeMove, false);


      let resizeHandle = HTMLElement.prototype.querySelector.call(chat, '.resize-handle')
      if (resizeHandle) {
        resizeHandle.remove();
      }

      chat.removeEventListener("mousedown", initializeResize, false);


      showHideButton = HTMLElement.prototype.querySelector.call(chat, '#show-hide-button');

      if (showHideButton) showHideButton.removeEventListener("mousedown", initializeMove, false);


      reset();
    }


    document.removeEventListener('fullscreenchange', fullscreenchangePageFn, false);
    document.addEventListener('fullscreenchange', fullscreenchangePageFn, false);
    fullscreenchangePageFn();

    customYtElements.whenRegistered('ytd-live-chat-frame', (proto) => {


      proto.attached = ((attached) => (function () { Promise.resolve(this).then(setChat); return attached.apply(this, arguments) }))(proto.attached);

      proto.detached = ((detached) => (function () { Promise.resolve(this).then(noChat); return detached.apply(this, arguments) }))(proto.detached);

      let chat = document.querySelector('ytd-live-chat-frame');
      if (chat) Promise.resolve(chat).then(setChat);

    })




  } else if (isIframe && top === parent) {



    top.postMessage(hkey_script, `${location.protocol}//${location.hostname}`);




  }




})({ Promise, requestAnimationFrame });