Add rate changed events; add a rate slider; parse incoming floats to ensure valid...

[sound.git] / sound.html

diff --git a/sound.html b/sound.html
index 1c133e57974fc348ac450bdc4f1f67722d89fcd8..af49cce23d2ec94c98e80b68649fa287f81f4cfb 100644 (file)
--- a/sound.html
+++ b/sound.html
@@ -32,8 +32,10 @@
                audio.addEventListener('canplaythrough', eventLogger);
                audio.addEventListener('emptied', eventLogger);
                audio.addEventListener('ended', eventLogger);
+               audio.addEventListener('ended', updateTime);
                audio.addEventListener('loadstart', eventLogger);
                audio.addEventListener('pause', eventLogger);
+               audio.addEventListener('pause', updateTime);
                audio.addEventListener('play', eventLogger);
                audio.addEventListener('playing', eventLogger);
                audio.addEventListener('progress', eventLogger);
@@ -41,6 +43,39 @@
                audio.addEventListener('timeupdate', eventLogger);
                audio.addEventListener('volumechange', eventLogger);
                audio.addEventListener('waiting', eventLogger);
+               audio.addEventListener('timeupdate', updateTime);
+               audio.addEventListener('durationchange', eventLogger);
+               audio.addEventListener('durationchange', updateDuration);
+               audio.addEventListener('ratechange', eventLogger);
+               audio.addEventListener('ratechange', updateRate);
+       }
+
+       function formatTime(time) {
+               var seconds = (time % 60).toFixed(0);
+               var minutes = (time / 60).toFixed(0);
+               return ("0" + minutes).substr(-2, 2) + ':' + ("0" + seconds).substr(-2, 2);
+       }
+
+       function updateTime() {
+               var time = document.getElementById('time');
+               var currentTime = audio.currentTime;
+               time.innerText = formatTime(currentTime);
+
+               var timeline = document.getElementById('timeline');
+               timeline.value = currentTime;
+       }
+
+       function updateDuration() {
+               var duration = document.getElementById('duration');
+               duration.innerText = formatTime(audio.duration);
+
+               var timeline = document.getElementById('timeline');
+               timeline.max = audio.duration;
+       }
+
+       function updateRate() {
+               var rate = document.getElementById('rate');
+               rate.value = audio.playbackRate;
        }
 
        </script>
@@ -53,11 +88,16 @@
                </select>
        </div>
        <div>
+               <input type="range" min="0" max="1" step="0.01" value="1" oninput="audio.volume = event.target.value" />
                <button onclick="audio.play()">play</button>
                <button onclick="audio.pause()">pause</button>
                <button onclick="audio.muted = !audio.muted">mute</button>
-               <input type="range" min="0" max="1" step="0.01" value="1" onchange="audio.volume = event.target.value" />
+               <span id="time">--:--</span>
+               <input id="timeline" type="range" min="0" max="1" step="0.01" value="0" oninput="audio.currentTime = event.target.value" />
+               <span id="duration">--:--</span>
                <button onclick="audio.loop = !audio.loop">loop</button>
+               <button onclick="audio.playbackRate = -audio.playbackRate">reverse</button>
+               <input id="rate" type="range" min="-1" max="1" step="0.01" value="1" oninput="audio.playbackRate = event.target.value" />
        </div>
 
 </body>