You have to make sure that cases on the desktop where you account for a mouse click are compatible with the finger gestures employed on a mobile device. Consider the fact that with mobile devices, there is no mouse. This extends to cases where something must work on a mobile device and such certifications are issued in spite of never having run the application on a mobile device! Too often, the assumption is made that if it works on the desktop, it works on a mobile device. It never ceases to amaze me how often developers certify that something is working without at least some rudimentary testing to verify that assertion. The disparity between the desktop and mobile versions underscores the importance of testing. The Importance of Testing with Different Browsers and Devices Fortunately, there's a remedy with JavaScript and CSS!įigure 2: Depending on your device, the HTML5 Audio Control with the Controls option set may not be functional. The important takeaway is that for most cases, the HTML5 Audio Control's visual facilities are useless. Even in the desktop scenario, there's no way to style the visual appearance. The main point is that unless your Web application is limited to the desktop, which isn't likely, the HTML5 Audio Control default visual features won't prove to be very useful. The fact that it's Chrome doesn't matter. The iPhone browser, Google Chrome in this case, is broken. Looking to Figure 2, you can see simple markup that is rendered in two very different ways. That concern has not been totally alleviated. Not too long ago, there was legitimate concern over whether all browsers supported HTML5. The HTML5 Audio Control has the capacity to alleviate a lot of work. Your browser does not support the audio element. The following code illustrates a simple usage: Identical UX for desktop and mobile devicesįigure 1 shows a mock-up of what these use-case requirements might look like.įigure 1: This is a Desktop and mobile UI mock-up depicting the use case visual requirements.Let's say that you're tasked to build a Web page that can play a number of audio clips. The code is licensed under the MIT Open Source License. The code for this solution can be found on GitHub. If you're new to Web development or have always relied on using third-party JavaScript and CSS frameworks as abstractions in lieu of working directly with base JavaScript and CSS, this article may prove to be good learning resource for you. In this article, I'll take you through those issues with a simple prescription that will help you avoid the struggles and pitfalls with this control. In spite of that usefulness, major issues exist when attempting to use the control “out of the box” on a mobile device. The same goes for the Video Control (which won't be discussed in this article). The HTML5 Audio control presents a standard way to play audio. In this issue, I address that by writing about one of the HTML5's most useful features, the Audio Control. It's been a while since I've written a technical piece. Returns a new audio element, with the src attribute set to the value passed in the argument, if applicable.I'm taking a brief hiatus from my usual legal topics. The src, preload, autoplay, mediagroup, loop, muted, and controls attributes are the attributes common toĪll media elements. The audio element is a media element whose media data is ostensibly audio data. To make audio content accessible to the deaf or to those with other physical or cognitive disabilities, authors are expected to provide alternative media streams and/or to embed accessibility aids (such as transcriptions) into their media streams. In particular, this content is not intended to address accessibility concerns. Interface HTMLAudioElement : HTMLMediaElement Īn audio element represents a sound or audio stream.Ĭontent may be provided inside the audio element it is intended for older Web browsers which do not support audio, so that legacy audio plugins can be tried, or to show text to the users of these older browsers informing them of how to access the audio contents. NamedConstructor= Audio(in DOMString src)] Content attributes: Global attributes src preload autoplay mediagroup loop muted controls DOM interface: If the element does not have a src attribute: one or more source elements, then zero or more track elements, then transparent, but with no media element descendants. Content model: If the element has a src attribute: zero or more track elements, then transparent, but with no media element descendants. Contexts in which this element can be used: Where embedded content is expected. If the element has a controls attribute: Interactive content. ← 4.8.6 The video element – Table of contents – 4.8.8 The source element → 4.8.7 The audio element Categories Flow content.
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