Simple HTML5 video player

Replaces any default HTML5 player with custom controls

As of 2018-10-22. See the latest version.

// ==UserScript==
// @name         Simple HTML5 video player
// @description  Replaces any default HTML5 player with custom controls
// @grant        GM_addStyle
// @include *
// @run-at document-load
// @version 1.6
// @namespace https://greasyfork.org/users/3167
// ==/UserScript==


var videos = document.getElementsByTagName('video');
for (var i=0; i<videos.length; i++) {
		
	(function(video) {
		if (video.controls==true) {
				
			video.controls=false;

			var videowrapper = document.createElement('videowrapper');

			//videowrapper.className="videowrapper";

			videowrapper.style.position="relative";
			videowrapper.style.width="auto";
			videowrapper.style.display="inline-block";
			videowrapper.style.fontSize="0";
			if (video.parentNode==document.body) {
				document.body.style.display="flex";
				document.body.style.alignItems="center";
				document.body.style.justifyContent="center";
			}

			if (video.parentNode!=videowrapper) { 
				video.parentNode.insertBefore(videowrapper, video); 
				videowrapper.appendChild(video);
			}
			video.style.position="relative";

			var controls = document.createElement('controls');
			video.parentNode.insertBefore(controls, video.nextSibling);

			controls.style.background="rgba(0, 0, 0, 0.5)";
			controls.style.height="32px";
			controls.style.width="100%";
			controls.style.bottom="0";
			controls.style.display="block";
			controls.style.position="absolute";
			controls.style.fontFamily="Segoe UI Symbol";
			controls.style.cursor="default";
			controls.style.fontSize="18px";

			controls.style.webkitUserSelect="none";  /* Chrome all / Safari all */
			controls.style.mozUserSelect="none";     /* Firefox all */
			controls.style.msUserSelect="none";      /* IE 10+ */
			controls.style.userSelect="none";          /* Likely future */      

			var playbutton = document.createElement('button');
			controls.appendChild(playbutton);
			playbutton.innerHTML="&#x25b6;";
			playbutton.style.lineHeight="32px";
			playbutton.style.position="absolute";
			playbutton.style.left="4px";
			playbutton.style.bottom="0";
			playbutton.style.border="none";
			playbutton.style.paddingTop="0";
			playbutton.style.paddingBottom="0";
			playbutton.style.paddingLeft="4px";
			playbutton.style.paddingRight="4px";
			playbutton.style.background="none";
			playbutton.style.fontFamily="Segoe UI Symbol";
			playbutton.style.fontSize="18px";
			playbutton.style.margin="0";
			playbutton.style.height="32px";

			var timestamp = document.createElement('span');
			controls.appendChild(timestamp);
			timestamp.innerHTML="0:00/0:00";
			timestamp.style.lineHeight="32px";
			timestamp.style.position="absolute";
			timestamp.style.left="32px";
			timestamp.style.bottom="0";

			var seekbar = document.createElement('input');
			controls.appendChild(seekbar);
			seekbar.type="range";
			seekbar.value=0;
			seekbar.innerHTML="";
			seekbar.style.lineHeight="32px";
			seekbar.style.position="absolute";
			seekbar.style.left="140px";
			seekbar.style.right="220px";
			seekbar.style.width="calc(100% - 140px - 220px)";
			seekbar.style.bottom="4px";
			seekbar.style.height="20px";
			seekbar.style.background="none";
			seekbar.style.border="none";
			seekbar.style.margin="0";
			seekbar.style.padding="0";
		
			var mutebutton = document.createElement('button');
			controls.appendChild(mutebutton);
			mutebutton.innerHTML="&#x1f50a;";
			mutebutton.style.lineHeight="32px";
			mutebutton.style.position="absolute";
			mutebutton.style.right="180px";
			mutebutton.style.bottom="0";
			mutebutton.style.border="none";
			mutebutton.style.paddingTop="0";
			mutebutton.style.paddingBottom="0";
			mutebutton.style.paddingLeft="4px";
			mutebutton.style.paddingRight="4px";
			mutebutton.style.background="none";
			mutebutton.style.fontFamily="Segoe UI Symbol";
			mutebutton.style.fontSize="18px";
			mutebutton.style.margin="0";
			mutebutton.style.height="32px";

			var volumebar = document.createElement('input');
			controls.appendChild(volumebar);
			volumebar.type="range";
			volumebar.min=0;
			volumebar.max=1;
			volumebar.step=0.01;
			volumebar.value=0.5;
			volumebar.innerHTML="";
			volumebar.style.lineHeight="32px";
			volumebar.style.position="absolute";
			volumebar.style.width="100px";
			volumebar.style.right="70px";
			volumebar.style.bottom="4px";
			volumebar.style.height="20px";
			volumebar.style.background="none";
			volumebar.style.border="none";
			volumebar.style.margin="0";
			volumebar.style.padding="0";

			var fsbutton = document.createElement('button');
			controls.appendChild(fsbutton);
			fsbutton.innerHTML="&#x25a1;";
			fsbutton.style.lineHeight="32px";
			fsbutton.style.position="absolute";
			fsbutton.style.right="40px";
			fsbutton.style.bottom="0";
			fsbutton.style.border="none";
			fsbutton.style.paddingTop="0";
			fsbutton.style.paddingBottom="0";
			fsbutton.style.paddingLeft="4px";
			fsbutton.style.paddingRight="4px";
			fsbutton.style.background="none";
			fsbutton.style.fontFamily="Segoe UI Symbol";
			fsbutton.style.fontSize="18px";
			fsbutton.style.margin="0";
			fsbutton.style.height="32px";


			var savebutton = document.createElement('a');
			controls.appendChild(savebutton);
			savebutton.innerHTML="&#x1f847;";
			savebutton.style.lineHeight="32px";
			savebutton.style.position="absolute";
			savebutton.style.right="8px";
			savebutton.style.bottom="0";
			savebutton.style.border="none";
			savebutton.style.paddingTop="0";
			savebutton.style.paddingBottom="0";
			savebutton.style.paddingLeft="4px";
			savebutton.style.paddingRight="4px";
			savebutton.style.background="none";
			savebutton.style.fontFamily="Segoe UI Symbol";
			savebutton.style.fontSize="18px";
			savebutton.style.margin="0";
			savebutton.style.height="32px";
			
			savebutton.href=video.currentSrc;
			savebutton.download="";

			function HHMMSS(num) {
		  num = num || 0;
				var sec_num = Math.floor(num);
				
				var hours   = Math.floor(sec_num / 3600);
				var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
				var seconds = sec_num - (hours * 3600) - (minutes * 60);

				if (hours   < 10) {hours   = "0"+hours;}
				if (minutes < 10) {minutes = "0"+minutes;}
				if (seconds < 10) {seconds = "0"+seconds;}
				
				if (hours<1) {
					return minutes+':'+seconds;
				}
				return hours+':'+minutes+':'+seconds;
			}

			playbutton.addEventListener("click", function() {
			  if (video.paused == true) {
				video.play();
			  } else {
				video.pause();
			  }
			});

			video.addEventListener("click", function() {
			  if (video.paused == true) {
				video.play();
			  } else {
				video.pause();
			  }
			});

			video.addEventListener("play", function() {
			  playbutton.innerHTML = "&#x23f8;";
			  controls.className="playing";
			});

			video.addEventListener("pause", function() {
			  playbutton.innerHTML = "&#x25b6;";
			  controls.className="paused";
			});

			video.addEventListener("timeupdate", function() {
			  timestamp.innerHTML = HHMMSS(video.currentTime) + "/" + HHMMSS(video.duration);
			});
			
			video.addEventListener("durationchange", function() {
			  timestamp.innerHTML = HHMMSS(video.currentTime) + "/" + HHMMSS(video.duration);
			});

			mutebutton.addEventListener("click", function() {
			  if (video.muted == false) {
				video.muted = true;
			  } else {
				video.muted = false;
			  }
			});


			fsbutton.addEventListener("click", function() {
			  if (video.requestFullscreen) {
				video.requestFullscreen();
			  } else if (video.mozRequestFullScreen) {
				video.mozRequestFullScreen(); // Firefox
			  } else if (video.webkitRequestFullscreen) {
				video.webkitRequestFullscreen(); // Chrome and Safari
			  }
			});

			seekbar.addEventListener("input", function() {
			  var time = video.duration * (seekbar.value / 100);
			  video.currentTime = time;
			});

			video.addEventListener("timeupdate", function() {
			  var value = (100 / video.duration) * video.currentTime;
			  seekbar.value = value;
			});

			seekbar.addEventListener("mousedown", function() {
				seekbar.paused = video.paused;
				video.pause();
			});

			// Play the video when the slider handle is dropped
			seekbar.addEventListener("mouseup", function() {
				if (!seekbar.paused) {
					video.play();
				}
			});

			volumebar.addEventListener("input", function() {
			  video.volume = volumebar.value;
			  localStorage.setItem("videovolume", video.volume);
			});

			video.addEventListener("volumechange", function() {
			  if (video.muted || video.volume==0) {
				mutebutton.innerHTML = "&#x1f507;";
			  } else {
				mutebutton.innerHTML = "&#x1f50a;";
			  }
			});
			
			volumebar.value = localStorage.getItem("videovolume", video.volume);
			video.volume = volumebar.value;
		}
	})(videos[i])
}

var stylesheet = `
videowrapper controls > * {
    color: lightgrey;
    /* mix-blend-mode: difference; */
    background: none;
}
videowrapper controls.playing {
	opacity: 0;
}
videowrapper controls {
	transition: all 0.5s ease;
}
videowrapper:hover controls {
	opacity: 1;
}
videowrapper input[type=range] {
    /*removes default webkit styles*/
    -webkit-appearance: none;
    
    /*fix for FF unable to apply focus style bug */
    border: 1px solid white;
    
    /*required for proper track sizing in FF*/
    width: 300px;
}
videowrapper input[type=range]::-webkit-slider-runnable-track {
    width: 300px;
    height: 5px;
    background: #444444;
    border: none;
    border-radius: 3px;
}
videowrapper input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    border: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: lightgrey;
    margin-top: -5px;
}
videowrapper input[type=range]:focus {
    outline: none;
}
videowrapper input[type=range]:focus::-webkit-slider-runnable-track {
    background: #ccc;
}

videowrapper input[type=range]::-moz-range-track {
    width: 300px;
    height: 5px;
    background: #444444;
    border: none;
    border-radius: 3px;
}
videowrapper input[type=range]::-moz-range-thumb {
    border: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: lightgrey;
}

/*hide the outline behind the border*/
videowrapper input[type=range]:-moz-focusring{
    outline: 1px solid white;
    outline-offset: -1px;
}

videowrapper input[type=range]::-ms-track {
    width: 300px;
    height: 5px;
    
    /*remove bg colour from the track, we'll use ms-fill-lower and ms-fill-upper instead */
    background: transparent;
    
    /*leave room for the larger thumb to overflow with a transparent border */
    border-color: transparent;
    border-width: 6px 0;

    /*remove default tick marks*/
    color: transparent;
}
videowrapper input[type=range]::-ms-fill-lower {
    background: #777;
    border-radius: 10px;
}
videowrapper input[type=range]::-ms-fill-upper {
    background: #444444;
    border-radius: 10px;
}
videowrapper input[type=range]::-ms-thumb {
    border: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: lightgrey;
}
videowrapper input[type=range]:focus::-ms-fill-lower {
    background: #888;
}
videowrapper input[type=range]:focus::-ms-fill-upper {
    background: #ccc;
}
`;

if (typeof GM_addStyle != "undefined") {
  GM_addStyle (stylesheet);
} else {
  var css = document.createElement("style");
  css.type = "text/css";
  css.innerHTML = stylesheet;
  document.head.appendChild(css);
}