Embed logic for local Webms

Adds embed capability for webms in local listing (Browser can handle Webms better than Windows)

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Embed logic for local Webms
// @namespace    file:///
// @version      1.0
// @description  Adds embed capability for webms in local listing (Browser can handle Webms better than Windows)
// @author       DUVish
// @match        file:///*webms/
// @icon         https://www.google.com/s2/favicons?sz=64&domain=undefined.
// @grant        none
// ==/UserScript==

let topLevelTable = document.querySelector("table");

let currentEmbeddedRowIdx = null;

if (topLevelTable) {
  let topLevelHead = topLevelTable.querySelector("thead");
  let topLevelHeadRow = topLevelHead.querySelector("tr");
  let newTableHeadCell = document.createElement("th");
  newTableHeadCell.innerText = "Embed";
  topLevelHeadRow.appendChild(newTableHeadCell);

  let topLevelBody = topLevelTable.querySelector("tbody")
  let totalRows = topLevelBody.children.length;

  let videoViewNode = document.createElement("div");
  videoViewNode.style.width = "90vw";
  videoViewNode.style.height = "90vh";
  videoViewNode.style.display = "none";
  videoViewNode.style.top = "2.5vh";
  videoViewNode.style.left = "2.5vw";
  videoViewNode.style.position = "fixed";
  videoViewNode.classList.add("videoViewNode");
  document.querySelector("body").appendChild(videoViewNode);
  let videoTitleNode = document.createElement("div");
  videoTitleNode.style.width = "100%";
  videoTitleNode.style.textAlign = "center";
  videoTitleNode.innerText = `[${currentEmbeddedRowIdx}/${totalRows - 1}]`;
  videoTitleNode.classList.add("videoTitleNode");
  videoViewNode.appendChild(videoTitleNode);
  videoViewNode.addEventListener("keydown", (e) => {
    let key = e.key;
    if (key === "q") {
      Array.from(videoViewNode.children).forEach(child => child.tagName === "VIDEO" && child.remove());
      videoViewNode.style.display = "none";
      currentEmbeddedRowIdx = null;
    }

    if (key === "ArrowDown" || key === "ArrowUp") {
      if (typeof currentEmbeddedRowIdx === "number") {
        let changedFlag = false;
        if (key === "ArrowDown" && currentEmbeddedRowIdx < totalRows - 1) {
            currentEmbeddedRowIdx++;
            changedFlag = true;
        }
        if (key === "ArrowUp" && currentEmbeddedRowIdx > 0) {
            currentEmbeddedRowIdx--;
            changedFlag = true;
        }
        if (changedFlag) {
          let newVideoSrc = topLevelBody.children[currentEmbeddedRowIdx].querySelector("a").href;
          let currentVideoNode = document.querySelector(".videoNode");
          if (currentVideoNode) {
              currentVideoNode.src = newVideoSrc;
              updateTitle();
          }
        }
      }
    }
  });

  function updateTitle(idx) {
    let videoTitleNode = document.querySelector(".videoTitleNode");
    videoTitleNode.innerText = `[${currentEmbeddedRowIdx || idx}/${totalRows - 1}]`;
  }

  Array.from(topLevelBody.children).forEach((row, idx) => {
    let newCell = document.createElement("td");
    newCell.innerText = "Embed media";
    newCell.addEventListener("click", (e) => {
        let clickedCell = e.target;
        let fileName = clickedCell.parentNode.children[0].querySelector("a").href;
        let videoNode = document.createElement("video");
        videoNode.src = fileName;
        videoNode.controls = "true";
        videoNode.loop = "true";
        videoNode.autoplay = "true";
        videoNode.style.width = "95vw";
        videoNode.style.height = "95vh";
        videoNode.classList.add("videoNode");
        let videoViewNode = document.querySelector(".videoViewNode");
        console.log("in emebd click handler", videoViewNode, videoViewNode.style, videoViewNode.style.display);
        videoViewNode.style.display = "flex";
        videoViewNode.style.flexDirection = "column";
        videoViewNode.appendChild(videoNode);
        updateTitle(idx);
        currentEmbeddedRowIdx = idx;
    });
    row.appendChild(newCell);
  });
}