How do you implement accessibility and localization features in your Ext JS Sass code and bootstrap themes?

1 Accessibility basics

Accessibility is the practice of designing and developing web applications that are usable by everyone, regardless of their abilities or disabilities. Accessibility features include keyboard navigation, screen reader support, color contrast, text resizing, and focus management. Ext JS provides some built-in accessibility features, such as ARIA attributes, keyboard shortcuts, and high contrast themes. However, you can also enhance the accessibility of your Ext JS app by using Sass to adjust the colors, fonts, sizes, and spacing of your bootstrap theme elements.

2 Localization basics

Localization is the process of adapting your web application to different languages, cultures, and regions. Localization features include text translation, date and time formats, number and currency formats, and directionality. Ext JS supports localization through the Ext.locale package, which provides localized versions of the Ext JS framework classes, such as grids, charts, buttons, and messages. However, you can also customize the localization of your Ext JS app by using Sass to change the text direction, alignment, and fonts of your bootstrap theme elements.

3 Sass variables

Sass variables are placeholders that store values that you can reuse throughout your Sass code. You can use Sass variables to define the colors, fonts, sizes, and other properties of your bootstrap theme elements. For example, you can use the $theme-colors variable to set the primary, secondary, success, warning, and danger colors of your theme. You can also use the $font-family-base variable to set the default font family of your theme. By using Sass variables, you can easily change the appearance of your Ext JS app without modifying the bootstrap theme files.

4 Sass mixins

Sass mixins are blocks of code that you can include in other Sass rules. You can use Sass mixins to create reusable styles for your bootstrap theme elements. For example, you can use the @include button-variant mixin to generate the styles for different types of buttons, such as outline, disabled, or active. You can also use the @include text-emphasis-variant mixin to generate the styles for different text colors, such as muted, primary, or danger. By using Sass mixins, you can extend the functionality of your Ext JS app without duplicating the bootstrap theme code.

5 Sass functions

Sass functions are expressions that return a value that you can use in other Sass rules. You can use Sass functions to perform calculations, transformations, or manipulations on your bootstrap theme values. For example, you can use the darken function to create a darker shade of a color, such as darken($primary, 10%). You can also use the str-replace function to replace a substring in a string, such as str-replace($font-family-base, "sans-serif", "arial"). By using Sass functions, you can modify the behavior of your Ext JS app without hard-coding the bootstrap theme values.

6 Sass maps

Sass maps are collections of key-value pairs that you can use to store and access multiple values in a single variable. You can use Sass maps to organize and group your bootstrap theme values by categories or contexts. For example, you can use the $theme-colors map to store the color names and values of your theme. You can also use the $dir map to store the text direction and alignment values of your theme based on the language or region. By using Sass maps, you can simplify and optimize your Ext JS app without creating multiple variables for the bootstrap theme values.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?