Baseline Widely available
HTMLMediaElement
ã® play()
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) ãè¿ãã¾ãã
権éã®åé¡ãªã©ãä½ããã®çç±ã§åçãéå§ããªãã£ãå ´åããã®ãããã¹ã¯æå¦ããã¾ãã
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ã¡ã¢: å¤ããã©ã¦ã¶ã¼ã¯ play()
ããå¤ãè¿ããªãå¯è½æ§ãããã¾ãã
ãããã¹ã®æå¦ãã³ãã©ã¼ã¯ã DOMException
ãªãã¸ã§ã¯ãã¨å¯ä¸ã®å¼æ°ã¨ãã¦æ¸¡ãããä¾å¤åã§å¼ã³åºããã¾ãï¼å¾æ¥ã®ä¾å¤ãæããããã®ã¨ã¯å¯¾ç
§çã§ãï¼ãæ³å®ãããã¨ã©ã¼ã¯ä»¥ä¸ã®éãã§ãã
NotAllowedError
DOMException
ã¦ã¼ã¶ã¼ã¨ã¼ã¸ã§ã³ãï¼ãã©ã¦ã¶ã¼ï¼ã¾ãã¯ãªãã¬ã¼ãã£ã³ã°ã·ã¹ãã ããç¾å¨ã®ã³ã³ããã¹ãã¾ãã¯ç¶æ³ã«ããã¦ã¡ãã£ã¢ã®åçã許å¯ããªãå ´åã«æä¾ããã¾ãã ãã©ã¦ã¶ã¼ã¯ãä¾ãã°è¨±å¯ããªã·ã¼ ã®ãããã¦ã¼ã¶ã¼ãæç¤ºçã« "play" ãã¿ã³ãã¯ãªãã¯ãã¦ã¡ãã£ã¢åçãå§ããããã«è¦æ±ãããã¨ãããã¾ãã
NotSupportedError
DOMException
ã¡ãã£ã¢ã½ã¼ã¹ï¼ä¾ãã° MediaStream
, MediaSource
, Blob
, ã¾ã㯠File
ã¨ãã¦æå®å¯è½ï¼ãã対å¿ãã¦ããã¡ãã£ã¢å½¢å¼ã表ãã¦ããªãå ´åã«æä¾ããã¾ãã
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使ç¨ä¸ã®ã¡ã¢ãèªååç (autoplay)ãã¨ããç¨èªã¯é常ãèªã¿è¾¼ã¾ããã¨ããã«ã¡ãã£ã¢ã®åçãéå§ãããã¼ã¸ãæãã¨èãããã¦ãã¾ãããã¦ã§ããã©ã¦ã¶ã¼ã®èªååçããªã·ã¼ã¯ãplay()
ã®å¼ã³åºããå«ãã¹ã¯ãªããèµ·åã«ããã¡ãã£ã¢ã®åçã«ãé©ç¨ããã¾ãã
ã¦ã¼ã¶ã¼ã¨ã¼ã¸ã§ã³ããèªåã¾ãã¯ã¹ã¯ãªããèµ·åã«ããã¡ãã£ã¢ã®åçã許å¯ããªãããã«è¨å®ããã¦ããå ´åãplay()
ãå¼ã³åºãã¨è¿ããããããã¹ãç´ã¡ã« NotAllowedError
ã§æå¦ããã¾ãã ã¦ã§ããµã¤ãã¯ãã®ç¶æ³ã«å¯¾å¦ããæºåããã¦ããã¹ãã§ãã ä¾ãã°ããµã¤ãã«ã¯åçãèªåçã«éå§ããããã¨ãåæã¨ããã¦ã¼ã¶ã¼ã¤ã³ã¿ã¼ãã§ã¤ã¹ã表示ããã®ã§ã¯ãªããè¿ããããããã¹ã解決ããããæå¦ããããã«åºã¥ã㦠UI ãæ´æ°ããå¿
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§ãã¦ãã ããã
ã¡ã¢: play()
ã¡ã½ããã使ç¨ããã¨ãã¦ã¼ã¶ã¼ã¯ã¡ãã£ã¢ã®åçã許å¯ããããã«è¦æ±ãããè¿ããããããã¹ã解決ãããã¾ã§ã«é
å»¶ãçããå¯è½æ§ãããã¾ãã ã³ã¼ããå³åº§ã®å¿çãæå¾
ãã¦ããªããã¨ã確èªãã¦ãã ããã
èªååçããã³èªååçã®ãããã¯ã®è©³ç´°ã«ã¤ãã¦ã¯ãã¡ãã£ã¢ããã³ã¦ã§ããªã¼ãã£ãª API ã®èªååçã¬ã¤ããåç §ãã¦ãã ããã
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let videoElem = document.getElementById("video");
let playButton = document.getElementById("playbutton");
playButton.addEventListener("click", handlePlayButton, false);
playVideo();
async function playVideo() {
try {
await videoElem.play();
playButton.classList.add("playing");
} catch (err) {
playButton.classList.remove("playing");
}
}
function handlePlayButton() {
if (videoElem.paused) {
playVideo();
} else {
videoElem.pause();
playButton.classList.remove("playing");
}
}
ãã®ä¾ã§ã¯ãåç»ã®åçã¯éåæ (async
) 颿°ã«ãã£ã¦ãªã³ã¨ãªãããã°ã«åãæ¿ããã¾ããåç»ãåçãããã¨ããæåããå ´å㯠playButton
è¦ç´ ã®ã¯ã©ã¹åã "playing"
ï¼åçä¸ï¼ã«è¨å®ãã¾ãã åçãéå§ãããªãå ´åãplayButton
è¦ç´ ã®ã¯ã©ã¹ã¯ã¯ãªã¢ãããæ¢å®ã®å¤è¦³ã«æ»ãã¾ãã ããã¯ãplay()
ã«ãã£ã¦è¿ããããããã¹ (Promise
) ã®è§£æ±ºã¾ãã¯æå¦ãç£è¦ãããã¨ã«ãã£ã¦ãåçãã¿ã³ãå®éã®åçç¶æ
ã¨ä¸è´ãããã¨ãä¿è¨¼ãã¾ãã
ãã®ä¾ãå®è¡ãããã¨ãåçã®ãªã³ã¨ãªããåãæ¿ããããã«ä½¿ç¨ãã <video>
è¦ç´ ã¸ã®åç
§ã <button>
ã¨åæ§ã«åéãããã¨ããå§ãã¾ãã æ¬¡ã«ãåçãã°ã«ãã¿ã³ã® click
ã¤ãã³ãã®ã¤ãã³ããã³ãã©ã¼ãè¨å®ããplayVideo()
ãå¼ã³åºãã¦èªåçã«åçãéå§ãããã¨ãã¾ãã
ãã®ä¾ã Glitch ã§ãªã¢ã«ã¿ã¤ã ã§è©¦ãããããªããã¯ã¹ããããããã¨ãã§ãã¾ãã
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HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4