Summary -

In this topic, we described about the below sections -

What is HTML5 plug-in?

HTML5 makeover type generates HTML5-based output that incorporates fresh web technologies, such as CSS3, HTML5, reactive layouts. The objective of a plug-in is to expand the functionality of a web browser.

The HTML5 change gives energetic and innovative navigation and presentation. Helping elements, such as the JavaScript and CSS style sheets used to make the HTML in browsers. The HTML created in browser is to be simply modified or restored as necessary to give navigation and presentation styles. The HTML5 plugin includes a "theme mechanism". This theme mechanism presents a path to enroll, concatenate and summarize JavaScript and CSS into a single theme.

Note! The HTML5 plugin cannot use the HTML frames mechanism.

How plug-in are used?

Plug-ins propose is a higher range of features that can improve the flexibility of Gecko-based browsers. The variety of options for using plug-in technology appear limitless, as exhibited by the increasing numbers of individual software vendors are producing innovative plug-ins.

With the Plug-in API, we can build energetically loaded plug-ins that can -

  • Register one or more MIME types.
  • Draw into a part of a browser window.
  • Collect keyboard and mouse events.
  • Get data from the network using URLs.
  • Post data to URLs.
  • Add hyperlinks or hotspots that link to new URLs.
  • Draw into sections on an HTML page.
  • Converse with JavaScript/DOM from native code.

We can see which plug-ins are fitted with our system and have been correctly associated with the browser by checking the Fitted Plug-ins page. Type "about:plugins" in the Location bar. The Fitted Plug-ins page lists every fitted plug-in along with its MIME types or type, file extensions, description, and the present state (enabled or disabled) of the plug-in for every MIME type assigned to it.

Advantages -

  • One of the main advantage of plugins is that programming take place can support you to achieve various goals with your website. Various plugins are created to help with things like calculating our analytics, growing sign ups to our newsletter or performing with our email delivery system to make sure our clients are getting a positive experience.
  • Plugins also get includes social media on our site. The plugins can attach our clients to our social media sites and support to develop our brand as our clients distribute our data with their family and friends. It is crucial to exploit this possibility and plugins make it simple to do.

Disadvantages -

  • One of the greatest disadvantages to using plugins is that it can make our website susceptible to hacking or open to security problems. Normally, this occurs with older plugins that are not kept updated by our web designer. These security problems can be very serious. However, we can prevent them if we take the time to develop the plugins on a routine basis.
  • In Addition, if we select a paid edition over a free edition, we are less likely to move into security problems since patches can be published if difficulties are revealed.
  • Another problem is probably installing too several plugins. This can lead to some different problems. For example, plugins from different designers may not relate together good. This can make them less efficient or slow down our site. The answer is to decide the usage of plugins from one designer to have our site move more smoothly. In Addition, if we see the delay after installing a plugin, it may because the coding on that plugin is not written properly, and we can consider a different choice.

HTML Helpers (Plug-ins)

Plug-ins (Helper applications) are computer programs that expand the basic functionality of a web browser. We all know that instances of plug-ins are Java applets.

Plug-ins can enhance the web pages with the help of <embed> and <object> tags. Plug-ins can use for various reasons: verify our details, scan for viruses, display maps, etc.

<object> Element

The <object> element describes an embedded object within an HTML document. In our web page we can use <object> element to insert multimedia like video, Java applets, audio, ActiveX, Flash and PDF.

We can insert another webpage into our HTML document using <object> tag. we can pass parameters to plugins using the <param> tag that have been embedded with the <object> tag. The <object> element is supported by all browsers.

Note! An <object> element must exist within the <body> element. The text between the <object> and </object> (opening and closing object) is an alternative text that displays when this tag is not supported by browsers.
Tip! We can use the <img> tag instead of the <object> tag for images.

Example -

Below example describes about how the object element coded in HTML document.
<!DOCTYPE html>
<html>
	<body>
		<object width="390" height="60" data="img/green.jpg"></object>
	</body>
</html>

Output -

The <object> element can be used to include another html document in the html document.

Example -

Below example describes about how html document embedded in another html document.

Employee-list.htm 

<!DOCTYPE html>
<html>
  <body>
    <ul>
      <li>Employee 1</li>
      <li>Employee 2</li>
      <li>Employee 3</li>
    </ul>
 </body> 
</html>

Main.htm 

<!DOCTYPE html>
<html>
  <body>  
   <h6>Employee list from employee-list.htm</h6>
     <object width="200%" height="400px" data="employees-list.htm">
     </object>
  </body> 
</html>

Output -

Employee-list.htm

  • Employee 1
  • Employee 2
  • Employee 3

Main.htm

Employee list from employee-list.htm
  • Employee 1
  • Employee 2
  • Employee 3

<object> element is used to include images in the html document.

Example -

Below example describes about how to embed images in html document - 

<!DOCTYPE html>
<html>
 <body>
     <object data="img/leaves.jfif"></object>
 </body>
</html>

Output -

<embed> elements

The <embed> element also classifies an embedded object within an HTML document. The <embed> element can be applied to embed external application or an interactive content (a plug-in)., usually multimedia content like video or audio into an HTML document.

The <embed> element is endorsed by all main browsers. For a long time, web browsers have endorsed the <embed> element, However, the <embed> tag is not a component of the HTML 4 design.

In HTML5, the tag is the latest tag and this tag will validate in an HTML5 web page. However, if we utilize it in an HTML 4 page, the page will not validate.

Example -

Below example describes about how embed element coded in html.
<!DOCTYPE html>
<html>
  <body>
     <embed width="400" height="250" src="img/green.jpg">
  </body>
</html>

Output -

The <embed> element can also use to include a HTML document into another HTML document.

Example -

Below example describes about how html document embed on another html element.

Employee-list.htm 

<html>
  <body>
    <ul>
        <li>Employee 1</li>
        <li>Employee 2</li>
        <li>Employee 3</li>
    </ul>
  </body>
</html>

Main.htm 

<!DOCTYPE html>
<html> 
  <body>
   <h6>Employee list from employee-list.htm</h6>
  <embed width="200%" height="450px" src="employees-list.htm">
 </body>
</html>

Output -

Employee-list.htm

  • Employee 1
  • Employee 2
  • Employee 3

Main.htm

Employee list from employee-list.htm
  • Employee 1
  • Employee 2
  • Employee 3

<embed> element can also be used to include images in a HTML document .

Example -

Below example describes about how to embed image in html document using <embeded>tag.
<!DOCTYPE  html>
 <html>
  <body>
    <embed src="img/leaves.jfif"></embed>
 </body>
</html>

Output -