Responsive YouTube Player and YouTube Timestamp for Roamresearch

Play-Button.cs

.timestamp-control{
  background-color: rgba(108,109,36,0.1); 
  color: rgb(251,106,13);
  margin-right: 8px;
  margin-top: 0px;
  margin-left: 0px;
  margin-bottom: 5px;

  border-radius: 50% !important;
  border-style: inset;  
  border-color: #FF3200;
  font-size: 0.9em;
}
.timestamp-control:hover {
  background-color: rgba(108,109,36,0.25); 
  border-style: outset;  
  color: #FFFFFF;
}

Responsive-Timestamped-YouTube.js

// ==UserScript==
// @name         Responsive YouTube with Timestamp Control for Roamresearch
// @author       Connected Cognition Crumbs <c3founder@gmail.com>
// @require 	 Roam42: Wait until Roam42 loads completely
// @version      0.3
// @description  Add timestamp controls to YouTube videos embedded in Roam and makes the player responsive. 
//               Parameters:
//               Shortcuts: for grabbing title and current time as a timestamp.
//               	grabTitleKey: if in a DIRECT child block of the YT video, 
//									grabs the title and paste it to the beginning of the current block.
//			grabTimeKey: if in ANY child blocks of the YT video, 
//									grabs the current time of the player and paste it to the beginning.
//		        Player Size: Video height and width when the right sidebar is closed. 
// @match        https://*.roamresearch.com
const ytParams = {
  //Player Size
  vidHeight : 480,
  vidWidth : 720,
  //Shortcuts
  grabTitleKey : 'alt+a t',
  grabTimeKey : 'alt+a n'
};

const players = new Map(); 

var ytReady = setInterval(() => {
  if(typeof(YT) == 'undefined' || typeof(YT.Player) == 'undefined') {
    const tag = document.createElement('script');
    tag.src = 'https://www.youtube.com/iframe_api';
    const firstScriptTag = document.getElementsByTagName('script')[0];
    firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); 	
    clearInterval(ytReady);
  }
}, 1000); 

//Fill out the current block with the given text
function fillTheBlock(givenTxt){
  var setValue = Object.getOwnPropertyDescriptor(window.HTMLTextAreaElement.prototype, 'value').set;
  let newTextArea = document.querySelector("textarea.rm-block-input");               
  setValue.call(newTextArea,  givenTxt);
  var e = new Event('input', { bubbles: true });
  newTextArea.dispatchEvent(e);  	       
}

var mouseTrapReady = setInterval(() => {  
  if(Mousetrap === undefined) return;
  Mousetrap.bind(ytParams.grabTitleKey, async function(e) {   
    e.preventDefault()
    if (e.srcElement.localName == "textarea") {
      var container = e.srcElement.closest('.roam-block-container');
      var parContainer = container.parentElement.closest('.roam-block-container');        
      var myIframe = parContainer.querySelector("iframe");
      if(myIframe === null) return false;
      var oldTxt = document.querySelector("textarea.rm-block-input").value;                  
      var newValue = players[myIframe.id].getVideoData().title + " " + oldTxt;
      fillTheBlock(newValue);
    }
    return false;
  });	
  Mousetrap.bind(ytParams.grabTimeKey, async function(e) {   
    e.preventDefault()
    for (var plyId in players) {
          if(players[plyId].getPlayerState() == 1){
            var timeStr = new Date(players[plyId].getCurrentTime() * 1000).toISOString().substr(11, 8)
            var oldTxt = document.querySelector("textarea.rm-block-input").value;                  
            fillTheBlock(timeStr + " " + oldTxt);        
            return false;
          }
    }
    return false;
  });	
  clearInterval(mouseTrapReady);
}, 1000); 

 
const activateYtVideos = () => {
	if(typeof(YT) == 'undefined' || typeof(YT.Player) == 'undefined') return;
    Array.from(document.getElementsByTagName('IFRAME'))
        .filter(iframe => iframe.src.includes('youtube.com'))            
        .forEach(ytEl => {   
            if(ytEl.closest('.rm-zoom-item') !== null) {
            	return; //ignore breadcrumbs            
            }
            const block = ytEl.closest('.roam-block-container');          		
            if(ytEl.src.indexOf("enablejsapi") === -1){
              var ytId = extractVideoID(ytEl.src); 
              var frameId = "yt-" + ytEl.closest('.roam-block').id;
              ytEl.parentElement.id = frameId; 
              ytEl.remove();
              players[frameId] = new window.YT.Player(frameId, {
                height: ytParams.vidHeight,  	
                width: ytParams.vidWidth, 
                videoId: ytId
              });                        
              wrapIframe(frameId);
            } else {				                                      
              var frameId = ytEl.id				  
            }
            addTimestampControls(block, players[frameId]);   
            var sideBarOpen = document.getElementById("right-sidebar").childElementCount - 1;
            //Make iframes flexible
            adjustIframe(frameId, sideBarOpen);  
        });
};

const addTimestampControls = (block, player) => {
  if (block.children.length < 2) return null;
  const childBlocks = Array.from(block.children[1].querySelectorAll('.roam-block-container'));
  childBlocks.forEach(child => {
    const timestamp = getTimestamp(child);
    const buttonIfPresent = child.querySelectorAll('.timestamp-control')[0]
    if (buttonIfPresent) {
        buttonIfPresent.remove();
    }
    if (timestamp) { 
      addControlButton(child, () => player.seekTo(timestamp, true));
    }
  });
};
  
const adjustIframe = (frameId, sideBarOpen) => {
  var child = document.getElementById(frameId); //Iframe
  var par = child.parentElement;
  if(sideBarOpen){
    child.style.position = 'absolute';
    child.style.margin = '0px';
    child.style.border = '0px';
    child.style.width = '100%';
    child.style.height = '100%';
    child.style.borderStyle = 'inset';
    child.style.borderRadius = '25px';
    par.style.position = 'relative';
    par.style.paddingBottom = '56.25%';     
    par.style.height = '0px';
  } else {
    child.style.position = null;
    child.style.margin = '0px';
    child.style.border = '0px';        
    child.style.width = ytParams.vidWidth + 'px';
    child.style.height = ytParams.vidHeight + 'px';
    child.style.borderStyle = 'inset';
    child.style.borderRadius = '25px';
    par.style.position = null;
    par.style.paddingBottom = '0px';   
    par.style.height = ytParams.vidHeight + 20 + 'px';
  }
}
    
const wrapIframe = (frameId) => {
  var child = document.getElementById(frameId); //Iframe
  var par = document.createElement('div');
  child.parentNode.insertBefore(par, child);
  par.appendChild(child);
  child.style.position = 'absolute';
  child.style.margin = '0px';
  child.style.border = '0px';
  child.style.width = '100%';
  child.style.height = '100%';
  par.style.position = 'relative';
  par.style.paddingBottom = '56.25%';     
  par.style.height = '0px';
};
const getControlButton = (block) => block.querySelectorAll('.timestamp-control')[0];

const addControlButton = (block, fn) => {
  const button = document.createElement('button');
  button.innerText = '►';
  button.classList.add('timestamp-control');
  button.style.borderRadius = '50%';
  button.addEventListener('click', fn);
  const parentEl = block.children[0];
  parentEl.insertBefore(button, parentEl.querySelectorAll('.roam-block')[0]);
};

const getTimestamp = (block) => {
  const innerBlockSelector = block.querySelectorAll('.roam-block');
  const blockText = innerBlockSelector.length ? innerBlockSelector[0].textContent : '';
  const matches = blockText.match(/^((?:\d+:)?\d+:\d\d)\D/); // start w/ m:ss or h:mm:ss
  if (!matches || matches.length < 2) return null;
  const timeParts = matches[1].split(':').map(part => parseInt(part));
  if (timeParts.length == 3) return timeParts[0]*3600 + timeParts[1]*60 + timeParts[2];
  else if (timeParts.length == 2) return timeParts[0]*60 + timeParts[1];
  else return null;
};

const extractVideoID = (url) => {
  var regExp = /^(https?:\/\/)?((www\.)?(youtube(-nocookie)?|youtube.googleapis)\.com.*(v\/|v=|vi=|vi\/|e\/|embed\/\/?|user\/.*\/u\/\d+\/)|youtu\.be\/)([_0-9a-z-]+)/i;
  var match = url.match(regExp);
  if ( match && match[7].length == 11 ){
      return match[7];
  }else{
      return null; 
  }
};
  
setInterval(activateYtVideos, 1000);

I'm using a mac. I've changed the shortcuts to ctrl+a n and ctrl+a t but for some reason it's not picking up the change. The new shortcut is does nothing but the original alt+ still works (even though I'm on a mac). Any ideas?

Hi having trouble installing. When I copy from https://c3founder.github.io/Roam-Enhancement/ nothing changes to my embedded youtube videos. I am indenting and placing it correctly, I have installed other roam/js code blocks without issue.

I can get the rounded corners on my youtube videos but only if I place this https://gist.github.com/c3founder/0d47fe3f15f677a0a6f0e96b4868e46a#file-responsive-timestamped-youtube-js
in to the javascript code block. But I don't have the timestamp button. I also don't have the ability to resize the youtube window. I really like the idea of working with youtube videos in Roam research. Any help would be appreciated!

Also the page, if entered in to a browser window, https://c3founder.github.io/Roam-Enhancement/enhancedX.css
States that the above file can not be found. It is giving me a 404 error.

X

Why is it like that?

I have not written the corresponding smart block and have no idea why it is not working with the YT extension. If you are using it for the button that inserts timestamps you can add it as a feature request in issues here.

Hi having trouble installing. When I copy from https://c3founder.github.io/Roam-Enhancement/ nothing changes to my embedded youtube videos. I am indenting and placing it correctly, I have installed other roam/js code blocks without issue.

I can get the rounded corners on my youtube videos but only if I place this https://gist.github.com/c3founder/0d47fe3f15f677a0a6f0e96b4868e46a#file-responsive-timestamped-youtube-js
in to the javascript code block. But I don't have the timestamp button. I also don't have the ability to resize the youtube window. I really like the idea of working with youtube videos in Roam research. Any help would be appreciated!

Also the page, if entered in to a browser window, https://c3founder.github.io/Roam-Enhancement/enhancedX.css
States that the above file can not be found. It is giving me a 404 error.

Hey,
X here is a template!
https://c3founder.github.io/Roam-Enhancement/enhanced**X**.css

e.g., use this for YT:
@import url('https://c3founder.github.io/Roam-Enhancement/enhancedYouTube.css');