We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

Sök i support

Akta dig för supportbedrägerier: Vi kommer aldrig att be dig att ringa eller skicka ett sms till ett telefonnummer eller dela personlig information. Rapportera misstänkt aktivitet med alternativet "Rapportera missbruk".

Läs mer

Denna tråd har arkiverats. Ställ en ny fråga om du behöver hjälp.

Javascript: hidden embed tag doesn't respond to Play()

  • 2 svar
  • 3 har detta problem
  • 1 visning
  • Senaste svar av CJMonk

CJMonk
CJMonk
more options

In the following code snippet on Firefox (Mac OS), the Play() function is not found/does nothing.

<script> function EvalSound(soundobj) { 

 var thissound=document.getElementById(soundobj);
 thissound.Play();

} </script>

<embed src="success.wav" autostart=false width=0 height=0 id="sound1" enablejavascript="true">

<form> <input type="button" value="Play Sound" onClick="EvalSound('sound1')"> </form>

The <embed> tag is non-standard, but the above code works on Windows (IE, Chrome, Firefox) + Mac (Safari + Chrome).

A workaround is to give the <embed> tag attributes height=1 width=1 (resulting in a single pixel showing). Setting either height + width=0 or hidden=true seems to hide the DOM object from Javascript.

Security feature? Optimization?

In the following code snippet on Firefox (Mac OS), the Play() function is not found/does nothing. <script> function EvalSound(soundobj) { var thissound=document.getElementById(soundobj); thissound.Play(); } </script> <embed src="success.wav" autostart=false width=0 height=0 id="sound1" enablejavascript="true"> <form> <input type="button" value="Play Sound" onClick="EvalSound('sound1')"> </form> The <embed> tag is non-standard, but the above code works on Windows (IE, Chrome, Firefox) + Mac (Safari + Chrome). A workaround is to give the <embed> tag attributes height=1 width=1 (resulting in a single pixel showing). Setting either height + width=0 or hidden=true seems to hide the DOM object from Javascript. Security feature? Optimization?

Alla svar (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Does it work if you place the embed in a DIV container that has display:none or visibility:hidden ?

A good place to ask questions and advice about web development is at the mozillaZine Web Development/Standards Evangelism forum.
The helpers at that forum are more knowledgeable about web development issues.
You need to register at the mozillaZine forum site in order to post at that forum.

See http://forums.mozillazine.org/viewforum.php?f=25

CJMonk
CJMonk Frågans ägare
more options

Placing the embed in a hidden div container also breaks Play().

As far as I can tell, the <embed> must be visible.