Right to Left UI Support

Oro provides support for Right to Left User Interface development.

To enable it, make sure you:

  • Enabled RTL support for selected localization.
  • Marked a theme as RTL ready.
  • Checked if custom markup and styles with JS need additional improvements.

Enable RTL

The localization entity now has a check box Enable RTL Mode, which need to be selected.

Enabled RTL support for a Localization

Configure Theme

Layout and back-office themes configuration have option rtl_support that has to be enabled. It affects the styles build process. An additional style file is created with the rtl annex in naming (*.rtl.css).

Out-of-the-box, the default Layout theme and oro back-office theme have RTL support enabled.

But not all declared style inputs need to be processed with RTLCSS processor. Often third-party libraries support RTL out-of-the-box and their styles already account for text direction ([dir="rtl"]).

The following is a white list of style inputs (auto_rtl_inputs) that have to be processed.

By default, all styles from Oro bundles are auto processed:

# src/Acme/NewBundle/Resources/config/oro/assets.yml

    - 'bundles/oro*/**'

This list needs to be extended with a specific wildcard file mask to enable auto processing for a custom style. See Load Style Files from the Bundle for more information.



For layout development, use the is_rtl_mode_enabled value in context to pass an option to the block:

- '@setOption':
    id: root
    optionName: dir
    optionValue: '=context["is_rtl_mode_enabled"] ? "rtl" : ""'

To write templates for the back-office, use the oro_is_rtl_mode() twig function.

<html {{ oro_is_rtl_mode() ? 'dir="rtl"' : ''}}>

To force the “Left-To-Right” direction of the text (e.g., for phone, email, etc), wrap the value in the <bdo dir="ltr"></bdo> tag

<bdo dir="ltr">1-(800)-555-5555</bdo>


Styles are written in the standard way for the LTR version. During the building process, styles of the themes that have the rtl_support option enabled are post-processed with an additional RTLCSS processor.

As a result, an additional [name].rtl.css file is created for each output file of the theme.


Since it is a post-processing process, and RTL dist styles are created purely on the basis of CSS files created for LTR, there is no way to use any SCSS syntax for creating RTL. There is another approach to write distinctive styles for RTL. RTLCSS defines a special notation written within the comments (see RTLCSS documentation for more information).


In case the functionality needs to be changed on the JavaScript level, use _.isRTL() mixing in the underscore:

import _ from 'underscore';

// ...

el.style[`margin-${_.isRTL() ? 'left' : 'right'}`] = `${offset}px`;

Build Command

Use the standard building process with php bin/console oro:assets:build. Add option --skip-rtl that turns off building RTL styles for development purpose to speed up build in case RTL styles are not needed at that particular moment.