Fragment Specific Tags and Attributes Reference

Along with standard HTML, CSS, and JavaScript, you can use Liferay-specific tags and attributes to define editable sections, embed widgets, and more.

Editable elements can be modified before publication, which means that you can create simple, reusable fragments that have identical formatting, but contain elements that are adaptable to the specific context.

These Liferay-specific tags and attributes are available:

• Editable Text
• Editable Images
• Editable Links
• Editable HTML
• Embedded Widgets
• Localizable Fragment Fields
• Date Fragments
• Map Object Actions to Buttons
• JavaScript Variables

Warning

You can use data-lfr-editable* attributes to define elements as editable. Editable elements have a data-lfr-editable-id attribute, and it must be unique. Do not change the ID after the page fragment is added to a page; doing so causes you to lose changes made to the fragment.

Tip

When you start typing the name of a tag, the HTML editor provides auto-completion for lfr tags like editable elements and embeddable widgets.

This reference lists the available editable tags and attributes along with examples of how to use them in your fragments.

Editable Elements

Create editable sections, dynamic and reusable fragments for building a site, or bring a fragment to life by including a widget embedded to a portlet using editable elements.

Provide text, images, links, and HTML code to these editable elements which become the default values for their fields. You may want to display the editable content in the final version of the page, or you may want filler content that should be replaced before publishing the page.

Warning

FreeMarker code in editable fields is executed only once when the fragment is added to the page (to set its default value).

Avoid using it if you need the value re-evaluated. For example, if you localize a value using ${languageUtil.get(locale,'word')}, the word is only localized when you add the fragment to the page. The code does not run again even if you change your portal’s language.

Editable elements have many uses. Imagine you need a title, a small text box, an image, and a link to provide a product description. Create a fragment containing editable filler text, space for an editable image, the appropriate formatting, and an editable link.

You can then add the fragment to multiple pages and define the image, text, and link for each product you must describe.

Warning

Nesting editable elements inside other editable elements in a fragment is not supported.

Making Text Editable

You can make fragment text editable by including the data-lfr-editable-type="text" attribute in the image element. The data-lfr-editable-id must be a unique ID, like this example:

<p data-lfr-editable-id="text1" data-lfr-editable-type="text">
   Placeholder
</p>

Note

All block elements and inline elements are supported for editable text.

If you need formatting options like text or color styles, use rich-text:

<p data-lfr-editable-id="text1" data-lfr-editable-type="rich-text">
   Placeholder
</p>

Note

All block element tags are supported for editable Rich text. If you want to make text inside an HTML element editable, you must use the rich-text type. The text type strips HTML formatting out of the text before rendering.

Making Images Editable

Images use the same data-lfr-editable-type attribute as text, but with the image type. The data-lfr-editable-id must be a unique ID:

<img
   src="placeholder.jpg"
   alt="Placeholder"
   data-lfr-editable-id="img1"
   data-lfr-editable-type="image"
>

After adding the data-lfr-editable-type tag with the image type to a fragment, you can then click on the editable image in the content page editor sidebar and configure its source and properties when the fragment is added to a page.

Most images can be handled like this, but to add an editable background image, you must set the data-lfr-background-image-id property. This ID is added to the fragment’s main div and should match the editable image ID.

<div data-lfr-background-image-id="background-img-unique-id">
   <h1 data-lfr-editable-id="h1-unique-id" data-lfr-editable-type="text">
      Placeholder
   </h1>
   <p data-lfr-editable-id="p-unique-id" data-lfr-editable-type="text">
      Placeholder
   </p>
</div>

Content mapping connects editable fields in your fragment with fields from an asset type like web content or blogs. For example, you can map an image field to display a preview image for a web content article. For more information on mapping fields, see Fragment Mapping Settings.

Creating Editable Links

You can make general link elements editable by setting the data-lfr-editable-type to link. The data-lfr-editable-id must be a unique ID.

You can create editable link elements in different ways. Here are some examples:

<a
   href="#placeholder"
   target="_blank"
   data-lfr-editable-id="link1"
   data-lfr-editable-type="link"
>
   Go to placeholder
</a>

Use mailto: URI scheme to associate the link with an email:

<a
   href="mailto:[e-mail]"
   target="_blank"
   data-lfr-editable-id="link-to-email"
   data-lfr-editable-type="link"
>
   Send a Message
</a>

Use tel: URI scheme to associate the link with a telephone number:

<a
   href="tel:[phone]"
   target="_blank"
   data-lfr-editable-id="link-to-phone"
   data-lfr-editable-type="link"
>
   Who You Gonna Call?
</a>

You can edit the type of link, target URL, and link mapping from the content page editor sidebar.

For more information on editable links, see Editable Links.

Creating Editable HTML

You can make general HTML elements editable as well by setting the data-lfr-editable-type attribute to html:

<article data-lfr-editable-id="text1" data-lfr-editable-type="html">
   <h1>Placeholder</h1>
</article>

Including Widgets Within A Fragment

Each widget has a registered name and corresponding lfr-widget-[name] tag, which you must use to embed it in a fragment. For example, the Menu Display widget is registered as nav, so its tag is <lfr-widget-nav />. You can embed it in a block like this:

<div class="nav-widget">
   <lfr-widget-nav>
   </lfr-widget-nav>
</div>

These are the widgets that can be embedded and their accompanying tags:

Widget Name	Tag
DDL Display	<lfr-widget-dynamic-data-list>
Form	<lfr-widget-form>
Asset Publisher	<lfr-widget-asset-list>
Breadcrumb	<lfr-widget-breadcrumb>
Category Filter	<lfr-widget-categories-nav>
Flash	<lfr-widget-flash>
Media Gallery	<lfr-widget-media-gallery>
Menu Display	<lfr-widget-nav>
Polls Display	<lfr-widget-polls>
Related Assets	<lfr-widget-related-assets>
Site Map	<lfr-widget-site-map>
Tag Cloud	<lfr-widget-tag-cloud>
Tag Filter	<lfr-widget-tags-nav>
Web Content Display	<lfr-widget-web-content>
RSS Publisher	<lfr-widget-rss>
Iframe	<lfr-widget-iframe>

Enabling Embedding for Your Widget

Liferay DXP/Portal 7.4+ +U60

If you have a custom widget that you want to embed in a fragment, you can configure that widget to be embeddable. To embed your widget, it must be an OSGi Component. Inside the @Component annotation for the portlet class you want to embed, add this property:

com.liferay.fragment.processor.PortletRegistry

Also, set the @Activate and the @Deactivate life cycle methods to register and unregister an alias for the portlet using the PortletRegistry:

public class MySamplePortlet extends MVCPortlet {

	@Activate
	protected void activate() {
		_portletRegistry.registerAlias(
			_ALIAS,
			MySamplePortletKeys.SAMPLE);
	}

	@Deactivate
	protected void deactivate() {
		_portletRegistry.unregisterAlias(_ALIAS);
	}

	private static final String _ALIAS = "sample";

	@Reference
	private PortletRegistry _portletRegistry;
}

When you deploy your widget, it’s available to add. The name you specify in the property must be appended to the lfr-widget tag like this:

<lfr-widget-app-name>
</lfr-widget-app-name>

Note

According to the W3C HTML standards, custom elements can’t be self-closing. Therefore, even though you can’t add anything between the opening and closing <lfr-widget...> tags, you can’t use the self-closing notation for the tag.

Localizing Fragment Configurations

You can localize fragment configuration for a page’s target language. For example, on a button fragment you can define one button type when the page language is en-US, and a different button type when the page language is es-ES. To localize a fragment configuration field, use the localizable attribute.

Note

The localizable attribute is not available for fragment configuration fields where the configurationRole property is set to style.

In the following code excerpt, the button fragment configuration sets the localizable attribute to true for the fields section under fieldSets. The localizable attribute is set at the field level. In the example, there is only one buttonType field. If you have a fragment with multiple fields, you can set the localizable attribute for each one:

"fieldSets": [
  {
    "fields": [
      {
        "dataType": "string",
        "defaultValue": "primary",
        "label": "type",
        "name": "buttonType",
        "type": "select",
        "localizable": true,
        "typeOptions": {
          "validValues": [
            {
              "value": "primary"
            },
            {
              "value": "secondary"
            },
            {
              "value": "link"
            },
            {
              "value": "outline-primary"
            },
            {
              "value": "outline-secondary"
            }
          ]
        }
      }
    ]
  }
]

You can use this sample code to change the button type depending on the page’s target language. In the following example, the Contact Us/Contacto button fragment sets the localizable attribute to true for the buttonType field. The example uses this attribute to configure the Primary button type when the page uses the en-US language (A) and the Outline Primary type when the page uses es-ES (B).

Tip

The flag icon under the fragment’s General settings indicates the configuration field as localizable.

Fragments with the localizable attribute that do not specify a custom configuration for a language use the default page language’s configuration.

Using Date Fragments

Conforming date formats to a locality can be a challenge in many contexts. You can customize and localize date formats using date fragments by including the data-lfr-editable-id="date-time" and data-lfr-editable-type="date-time" attributes in the fragment. data-lfr-editable-id must be a unique ID, like this example:

<div data-lfr-editable-type="date-time" data-lfr-editable-id="date-time">
   02/03/11 00:00 AM
</div>

Date Formats

You can choose the most common date formats out-of-the-box or customize your date format following SimpleDateFormat.

There are four out-of-the-box options available:

Date Format	How it looks
MM/DD/YY	08/07/23
DD/MM/YY	07/08/23
YY/MM/DD	23/08/07
DD/MM/YYYY	07/08/2023

If you customize your date format, you can include different date and time patterns (e.g. era designator, time zone, and day name in the week).

Here are some examples:

Date Format	How it looks
MMMM dd, YYYY. hh:mm a	August 07, 2023. 11:57 AM
MM.dd.YY	08.07.23
hh 'o''clock' a, zzzz	11 o’clock AM, Greenwich Mean Time
KK:mm a, z	11:57 AM, GMT
EEE, d MMM yyyy HH:mm:ss Z	Mon, 7 Aug 2023 11:57:00 +0000

Tip

You can localize the date format the same way you localize fragment configuration fields.

Making Buttons Action-ready

You can trigger object actions using button components by including the data-lfr-editable-id="action" and data-lfr-editable-type="action" attributes to the button tag. The data-lfr-editable-id must be a unique ID, like this example:

<button class="btn btn-${configuration.buttonSize} btn-${configuration.buttonType}" data-lfr-editable-id="action" data-lfr-editable-type="action">
   Go Somewhere
</button>

Using JavaScript Variables

When adding JavaScript to a fragment, Liferay makes several pre-defined variables available for you to use, making it easier to manage your fragment’s behavior. Here are some of the variables you can use:

• fragmentElement is the root HTML element that contains your fragment. You can use it to access and manipulate the DOM elements within your fragment.

  const button = fragmentElement.querySelector('.my-button');
  button.addEventListener('click', () => {
     console.log('Button clicked!');
  });
  

• configuration is an object containing the fragment’s configuration options. If the fragment has configurable fields (like colors, text, or URLs), their values are stored here.

  const textColor = configuration.textColor;
  fragmentElement.style.color = textColor;
  

• fragmentEntryLinkNamespace is a unique string that can be used to identify the fragment within the page, even if there are multiple instances of the same fragment. It’s useful when you must create unique IDs or scopes in your JavaScript.

  const uniqueId = `${fragmentEntryLinkNamespace}-button`;
  const button = document.createElement('button');
  button.id = uniqueId;
  fragmentElement.appendChild(button);
  

  Note

  fragmentEntryLinkNamespace was called fragmentNamespace, but fragmentNamespace has been deprecated. It’s still available for compatibility, but you should use fragmentEntryLinkNamespace in new code.

• layoutMode indicates whether the fragment is being edited or viewed. You can adjust the fragment’s behavior based on whether the page is in edit mode (layoutMode === "edit") or being viewed live (layoutMode === "view").

  if (layoutMode === 'edit') {
     console.log('Page is in edit mode');
  } else {
     console.log('Page is being viewed');
  }
  

Related Topics

• Fragments Toolkit Command Reference
• Page Fragment Editor Interface Reference
• Fragment Configuration Types Reference