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Masked Input

Figma GitHub

A form input that visually obfuscates characters to protect sensitive information by replacing them with a shape.

A Masked Input field is a special input that visually obfuscates characters to protect sensitive information by masking them with a circular shape.

Important to know

This component is meant for visual obfuscation only. Consumers should be aware that the hidden text value could still be obtained through other means (e.g., copying it from the input, via JavaScript, via the developer tools, etc.).

Usage

When to use

  • To give users a way to show and hide sensitive information.

  • When a form input with the ability to mask its value temporarily is needed.

When not to use

Masked input vs Password input

The Masked Input is a text field designed to protect sensitive or confidential information while allowing users to show or hide the input value as needed.

The password input is a specific type of form control designed for the secure entry of passwords. The value is always masked or hidden to prevent others from reading the entered characters easily. Unlike the Masked Input, the password input has specific attributes to enhance the security and confidentiality of passwords.

Usage examples

Do

Use the Masked Input to protect sensitive values like secret keys or tokens.

Form with a masked input

Do

Use the Masked Input to protect sensitive values like variables and certificates from unintended exposure.

Form with a multiline masked input

Don’t

Don’t use a Masked Input for password input. Use the Password input.

Form with a masked input

Multiline

Use isMultiline to display multiline textual content. e.g., a Terraform variable. This property replaces the TextInput with a Textarea field.

Required and optional

For complex forms, indicate required fields. This is the most explicit and transparent method and ensures users don’t have to make assumptions. Read more about best practices for marking required fields in forms.

For shorter, simpler forms, indicate optional fields instead.

Copying the Masked Input value

Setting the hasCopyButton property to true will display a Copy Button adjacent to the Masked Input, allowing users to copy the value in the Masked Input to their clipboard. Refer to the Copy Button usage guidelines for more details around copying content.

Character count

For tracking the number of characters entered into a MaskedInput and defining requirements around minimum and maximum length, refer to the Character count documentation.

Error validation

For error validation recommendations, refer to the Form patterns documentation.

Content

For high-level content recommendations, refer to our Primitives documentation.

How to use this component

There are two ways to use the Masked Input component:

  • Form::MaskedInput::Base - the base component: the input control with a toggle button.
  • Form::MaskedInput::Field - the field component: the input control with a toggle button, a label, helper text, and error messaging (in a wrapping container).

We recommend using the Field component as it provides built-in accessibility functionality. Use the Base component to achieve custom layouts or for special use cases not covered by the Field component.

Form::MaskedInput::Field

The basic invocation requires a Label. This creates:

  • a <label> element with a for attribute automatically associated with the input ID attribute.
  • a <input type="text"> or a <textarea> control with an automatically generated ID attribute.
<Hds::Form::MaskedInput::Field name="demo-team-token" as |F|>
  <F.Label>Terraform Cloud team token</F.Label>
</Hds::Form::MaskedInput::Field>

Input value

Pass a @value argument to pre-populate the input. By default, the content is visually obfuscated ("masked") and users can make it visible using the associated toggle button.

<Hds::Form::MaskedInput::Field 
  @value="036215df4996ca649928d8864b4df9e42cba0d6d" 
  name="demo-team-token"
  as |F|
>
  <F.Label>Terraform Cloud team token</F.Label>
</Hds::Form::MaskedInput::Field>

If you need to make the content visible by default or control the masking from outside the component, use the @isContentMasked argument.

<Hds::Form::MaskedInput::Field
  @isContentMasked={{false}}
  @value="036215df4996ca649928d8864b4df9e42cba0d6d"
  name="demo-team-token"
  as |F|
>
  <F.Label>Terraform Cloud team token</F.Label>
</Hds::Form::MaskedInput::Field>

Multiline

Set @isMultiline argument to true to render a <textarea>

<Hds::Form::MaskedInput::Field
  @isMultiline={{true}}
  @value="-----BEGIN RSA PRIVATE KEY-----
MIIBOgIBAAJBAKj34GkxFhD90vcNLYLInFEX6Ppy1tPf9Cnzj4p4WGeKLs1Pt8Qu
KUpRKfFLfRYC9AIKjbJTWit+CqvjWYzvQwECAwEAAQJAIJLixBy2qpFoS4DSmoEm
o3qGy0t6z09AIJtH+5OeRV1be+N4cDYJKffGzDa88vQENZiRm0GRq6a+HPGQMd2k
TQIhAKMSvzIBnni7ot/OSie2TmJLY4SwTQAevXysE2RbFDYdAiEBCUEaRQnMnbp7
9mxDXDf6AU0cN/RPBjb9qSHDcWZHGzUCIG2Es59z8ugGrDY+pxLQnwfotadxd+Uy
v/Ow5T0q5gIJAiEAyS4RaI9YG8EWx/2w0T67ZUVAw8eOMB6BIUg0Xcu+3okCIBOs
/5OiPgoTdSy7bcF9IGpSE8ZgGKzgYQVZeN97YE00
-----END RSA PRIVATE KEY-----"
  name="demo-private-key"
  as |F|
>
  <F.Label>Private key</F.Label>
</Hds::Form::MaskedInput::Field>

Important to know

When the multiline input is masked, the browser converts newline characters to masked characters: this means that the multiline text will appear as a single long string of characters, even if it’s inside a <textarea> element.

When the text is not masked, the newline characters will be respected. This means it may occupy more lines than when it’s masked (see the example above).

Something to keep in mind when designing and implementing functionality that makes use of this component.

Copy button

To allow users to copy the input value to their clipboard, set the @hasCopyButton argument to true.

<Hds::Form::MaskedInput::Field
  @hasCopyButton={{true}}
  @value="036215df4996ca649928d8864b4df9e42cba0d6d"
  name="demo-team-token"
  as |F|
>
  <F.Label>Terraform Cloud team token</F.Label>
</Hds::Form::MaskedInput::Field>

Helper text

You can add extra information to the field using helper text. When helper text is added, the component automatically adds an aria-describedby attribute to the input control, associating it with the automatically generated ID of the helper text element.

The token must include permissions to manage workspaces and projects. 
<Hds::Form::MaskedInput::Field
  @value="036215df4996ca649928d8864b4df9e42cba0d6d"
  name="demo-team-token"
  as |F|
>
  <F.Label>Terraform Cloud team token</F.Label>
  <F.HelperText>The token must include permissions to manage workspaces and projects.</F.HelperText>
</Hds::Form::MaskedInput::Field>

Extra content in label and helper text

If a link is used within a label, helper text, or error text, it will not be presented as a link to the user with a screen reader; only the text content is read out. As such, care should be used when considering this feature. If needing to use a link, include a screen reader-only message that informs the user that some help text includes links, and additional keyboard exploration may be required.

The Label and HelperText contextual components used in the Field component yield their content. This means you can also pass structured content.

The token must include permissions to manage workspaces and projects. 
<Hds::Form::MaskedInput::Field name="demo-team-token" as |F|>
  <F.Label>Terraform Cloud team token <Hds::Badge @size="small" @text="Beta" /></F.Label>
  <F.HelperText>The token must include <Hds::Link::Inline @href="#">permissions to manage workspaces and projects</Hds::Link::Inline>.</F.HelperText>
</Hds::Form::MaskedInput::Field>

Required vs. optional

Use the @isRequired and @isOptional arguments to add a visual indication that the field is "required" or "optional".

The token must include permissions to manage workspaces and projects.

The token must include permissions to manage workspaces and projects. 
<Hds::Form::MaskedInput::Field @isRequired={{true}} name="demo-team-token" as |F|>
  <F.Label>Terraform Cloud team token</F.Label>
  <F.HelperText>The token must include permissions to manage workspaces and projects.</F.HelperText>
</Hds::Form::MaskedInput::Field>
<br />
<Hds::Form::MaskedInput::Field @isOptional={{true}} name="demo-team-token" as |F|>
  <F.Label>Terraform Cloud team token</F.Label>
  <F.HelperText>The token must include permissions to manage workspaces and projects.</F.HelperText>
</Hds::Form::MaskedInput::Field>

Character count

If the user input needs to be limited to a certain number of characters, use @maxLength on a CharacterCount contextual component to guide the user in meeting the length requirements. This property does not restrict the users from entering characters over the limit. To define the maximum string length that the user can enter, set maxlength attribute on the associated input field.

2 characters remaining 
<Hds::Form::MaskedInput::Field
  @value={{this.value1}}
  name="demo-team-token"
  {{on "input" (fn this.updateValue "value1")}} 
  as |F|
>
  <F.Label>Terraform Cloud team token</F.Label>
  <F.CharacterCount @maxLength={{40}}/>
</Hds::Form::MaskedInput::Field>

If the user input is required to have a certain number of characters, use @minLength on a CharacterCount contextual component to guide the user in meeting the length requirements.

38 characters entered 
<Hds::Form::MaskedInput::Field
  @value={{this.value2}}
  name="demo-team-token" 
  {{on "input" (fn this.updateValue "value2")}} 
  as |F|
>
  <F.Label>Terraform Cloud team token</F.Label>
  <F.CharacterCount @minLength={{30}}/>
</Hds::Form::MaskedInput::Field>

When the user input needs to be in a certain range, use both @minLength and @maxLength on a CharacterCount contextual component to guide the user in meeting the length requirements.

2 characters remaining 
<Hds::Form::MaskedInput::Field
  @value={{this.value3}}
  name="demo-team-token"
  {{on "input" (fn this.updateValue "value3")}}
  as |F|
>
  <F.Label>Terraform Cloud team token</F.Label>
  <F.CharacterCount @minLength={{30}} @maxLength={{40}}/>
</Hds::Form::MaskedInput::Field>
Custom message

For custom messages, you can use the following arguments to build a relevant message: currentLength (the current number of characters in the associated form control), maxLength (the maximum number of characters allowed in the associated form control), minLength (the minimum number of characters required in the associated form control), remaining (the difference between maxLength and currentLength), and shortfall (the difference between currentLength and minLength).

2 characters remaining 
<Hds::Form::MaskedInput::Field
  @value={{this.value4}}
  name="demo-team-token"
  {{on "input" (fn this.updateValue "value4")}} 
  as |F|
>
  <F.Label>Terraform Cloud team token</F.Label>
  <F.CharacterCount @maxLength={{40}} as |CC|>
    {{CC.remaining}} characters remaining
  </F.CharacterCount>
</Hds::Form::MaskedInput::Field>
Validation based on length

You can raise an error based on the number of characters entered into a field using a custom validation function.

2 more characters required
Length should be at least 40 characters 
  <Hds::Form::MaskedInput::Field
    @value={{this.value5}}
    @isInvalid={{this.fieldIsInvalid}}
    name="demo-team-token"
    {{on "input" (fn this.updateValue "value5")}}
    as |F|
  >
    <F.Label>Terraform Cloud team token</F.Label>
    <F.CharacterCount @minLength={{this.minLength}}/>
    {{#if this.fieldIsInvalid}}
      <F.Error>Length should be at least 40 characters</F.Error>
    {{/if}}
  </Hds::Form::MaskedInput::Field>

Validation

To indicate a field is invalid, use the @isInvalid argument and provide an error message using the Error contextual component.

The provided token is not valid 
<Hds::Form::MaskedInput::Field
  @isInvalid={{true}}
  name="demo-team-token"
  @value="036215df4996ca649928d8864b4df9e42cba0d6d"
  as |F|
>
  <F.Label>Terraform Cloud team token</F.Label>
  <F.Error>The provided token is not valid</F.Error>
</Hds::Form::MaskedInput::Field>

Add more than one error message using the more specific Message contextual component.

Length should be at least 40 characters

Should not contain special characters or spaces 

<Hds::Form::MaskedInput::Field
  @isInvalid={{true}}
  name="demo-team-token"
  @value="036215df4996c649928d8864b4"
  as |F|
>
  <F.Label>Terraform Cloud team token</F.Label>
  <F.Error as |E|>
    <E.Message>Length should be at least 40 characters</E.Message>
    <E.Message>Should not contain special characters or spaces</E.Message>
  </F.Error>
</Hds::Form::MaskedInput::Field>

Custom control ID

If needing a custom ID for the control instead of the one automatically generated by the component, pass the @id argument to the field.

In this case, all the internal references (id/for/aria-describedby) between the different parts of the field are still automatically generated and will use the custom ID provided.

<Hds::Form::MaskedInput::Field @id="tfc-token" name="demo-team-token" as |F|>
  <F.Label>Terraform Cloud team token</F.Label>
</Hds::Form::MaskedInput::Field>

Additional aria-describedby

Pass an @extraAriaDescribedBy argument to the field to connect one or more extra elements describing the field to the control. This provides extra ID values to the aria-describedby attribute of the control, in addition to those automatically generated by the component.

<Hds::Form::MaskedInput::Field @extraAriaDescribedBy="my-extra-element-ID" name="demo-team-token" as |F|>
  <F.Label>Terraform Cloud team token</F.Label>
</Hds::Form::MaskedInput::Field>

HTML native attributes

This component supports use of ...attributes. This means you can use all the standard HTML attributes of the input control element. This can be useful in case you want to add specific native behaviors to the field, that are not exposed directly by the component (e.g., providing a name for the control, or adding min, max, minlength, maxlength, or pattern attributes to it).

<Hds::Form::MaskedInput::Field name="demo-tfc-token" minlength="40" maxlength="40" name="demo-team-token" as |F|>
  <F.Label>Terraform Cloud team token</F.Label>
</Hds::Form::MaskedInput::Field>

Events handling

This component supports the use of ...attributes, which allows you to use all the usual Ember techniques for event handling (e.g., input, blur, change), validation, etc.

<Hds::Form::MaskedInput::Field name="demo-team-token" {{on "blur" this.yourOnBlurFunction}} as |F|>
  <F.Label>Terraform Cloud team token</F.Label>
</Hds::Form::MaskedInput::Field>

Custom width

By default, the input control width is set to fill the parent container.

Pass a custom width for the control using the @width argument.

<Hds::Form::MaskedInput::Field @width="250px" name="demo-team-token" as |F|>
  <F.Label>Terraform Cloud team token</F.Label>
</Hds::Form::MaskedInput::Field>

Form::MaskedInput::Base

The Base component is intended for rare cases where the Field component can’t be used and a custom implementation is needed. Most of the details for the Field component also apply to the Base component, but see the Component API for more details.

Form::MaskedInput::Base does not come with built-in accessibility functionality. It is the responsibility of the product team to ensure the implementation is conformant.

The default invocation creates a <input type="text"> or a <textarea> control with an automatically generated ID attribute.

<Hds::Form::MaskedInput::Base
  @value="036215df4996ca649928d8864b4df9e42cba0d6d"
  aria-label="Terraform Cloud team token"
  name="demo-team-token"
/>

When the @isMultiline argument is set to true, it creates a <textarea> control with an automatically generated ID attribute. You can also adjust the height of <textarea> either by using the rows attribute or by setting a custom @height value.

<Hds::Form::MaskedInput::Base
  @value="-----BEGIN RSA PRIVATE KEY-----
MIIBOgIBAAJBAKj34GkxFhD90vcNLYLInFEX6Ppy1tPf9Cnzj4p4WGeKLs1Pt8Qu
KUpRKfFLfRYC9AIKjbJTWit+CqvjWYzvQwECAwEAAQJAIJLixBy2qpFoS4DSmoEm
o3qGy0t6z09AIJtH+5OeRV1be+N4cDYJKffGzDa88vQENZiRm0GRq6a+HPGQMd2k
TQIhAKMSvzIBnni7ot/OSie2TmJLY4SwTQAevXysE2RbFDYdAiEBCUEaRQnMnbp7
9mxDXDf6AU0cN/RPBjb9qSHDcWZHGzUCIG2Es59z8ugGrDY+pxLQnwfotadxd+Uy
v/Ow5T0q5gIJAiEAyS4RaI9YG8EWx/2w0T67ZUVAw8eOMB6BIUg0Xcu+3okCIBOs
/5OiPgoTdSy7bcF9IGpSE8ZgGKzgYQVZeN97YE00
-----END RSA PRIVATE KEY-----"
  @isMultiline={{true}}
  rows="5"
  aria-label="Private key"
  name="demo-team-token"
/>

Important to know

When the multiline input is masked, the browser converts newline characters to masked characters: this means that the multiline text will appear as a single long string of characters, even though it’s inside a <textarea> element.

Instead, when the text is not masked it will respect the newline characters: this means it may occupy more lines that when it’s masked (try the example above).

Something to keep in mind when designing and implementing functionality that requires this component.

Component API

The Masked Input component has two different variants with their own APIs:

  • Form::MaskedInput::Base - the base component: the input control
  • Form::MaskedInput::Field - the field parent component: the input control with label, helper text, and error messaging (in a wrapping container)

Form::MaskedInput::Base

value string|number|date
Input control’s value.

Notice: if the string provided contains newline characters they will be stripped, unless @isMultiline is set to true (this renders the input as a <textarea> element, which supports multi-line text).
isContentMasked boolean
  • true (default)
Set this argument to false to make the input content visible by default or bind it to a variable to control the masking from outside the component.
isMultiline boolean
  • false (default)
By default, the component renders an <input>. If set to true it renders a <textarea>.
isInvalid boolean
  • false (default)
Applies an “invalid” appearance to the control but doesn’t modify its logical validity.
visibilityToggleAriaLabel string
  • Show masked content (default)
Override this value to provide a meaninful aria-label for the visibility toggle button.
visibilityToggleAriaMessageText string
  • Input content is hidden (default)
Override this value to provide a meaninful aria-live message when the visibility toggle button is pressed.
hasCopyButton boolean
  • false (default)
If set to true, it renders a Copy::Button next to the form control allowing the value of the input to be copied to the clipboard.
copyButtonText string
  • Copy masked content (default)
Override this value to provide a meaningful aria-label for the Copy::Button component.
width string
any valid CSS width (px, rem, etc)
By default, the input fills the parent container. If a @width parameter is provided, the control will have a fixed width. When hasCopyButton is true, the width includes the associated copy button.
height string
any valid CSS height (px, rem, etc)
Only available if @isMultiline is true. By default, the <textarea> has a height determined by the browser to accommodate 4 lines of text. If a custom @height value is provided, the control will have a fixed height.
…attributes
This component supports use of ...attributes.

The attributes will be applied to the input control element. This means you can use all the standard HTML input attributes and all the usual Ember techniques for event handling, validation, etc.

Examples of HTML input attributes: id, name, placeholder, disabled, readonly, required. See the whole list of attributes. Examples of Ember modifiers: {{on "input" [do something]}}, {{on "change" [do something]}}, {{on "blur" [do something]}}.

Form::MaskedInput::Field

id string
Input control’s ID attribute.

By default, the ID is automatically generated by the component. Use this argument to pass a custom ID.
value string|number|date
Input control’s value.
isContentMasked boolean
  • true (default)
Set this argument to false to make the input content visible by default or bind it to a variable to control the masking from outside the component.
isMultiline boolean
  • false (default)
By default, the component renders an <input>. If set to true it renders a <textarea>.
isInvalid boolean
  • false (default)
Applies an “invalid” appearance to the control but doesn’t modify its logical validity.
isRequired boolean
  • false (default)
Appends a Required indicator next to the label text and sets the required attribute on the control when user input is required.
isOptional boolean
  • false (default)
Appends an Optional indicator next to the label text when user input is optional.
visibilityToggleAriaLabel string
  • Show masked content (default)
Override this value to provide a meaninful aria-label for the visibility toggle button.
visibilityToggleAriaMessageText string
  • Input content is hidden (default)
Override this value to provide a meaninful aria-live message when the visibility toggle button is pressed.
hasCopyButton boolean
  • false (default)
If set to true, it renders a Copy::Button next to the form control allowing the value of the input to be copied to the clipboard.
copyButtonText string
  • Copy masked content (default)
Override this value to provide a meaningful aria-label for the Copy::Button component.
width string
any valid CSS width (px, rem, etc)
By default, the input fills the parent container. If a @width parameter is provided, the control will have a fixed width. This width will only be applied to the control, not the other elements of the field.
height string
any valid CSS height (px, rem, etc)
Only available if @isMultiline is true. By default, the <textarea> has a height determined by the browser to accommodate 4 lines of text. If a custom @height value is provided, the control will have a fixed height.
extraAriaDescribedBy string
Extra ID attribute to add to the aria-describedby HTML attribute.

By default, the aria-describedby attribute is automatically generated by the component, using the IDs of the helper text and errors (if present). Use this argument to pass an extra ID.
…attributes
This component supports use of ...attributes.

The attributes will be applied to the input control element. This means you can use all the standard HTML attributes of the input control element and all the usual Ember techniques for event handling, validation, etc.

Examples of HTML attributes: name, placeholder, disabled, readonly, required. See the whole list of HTML attributes. Examples of Ember modifiers: {{on "input" [do something]}}, {{on "change" [do something]}}, {{on "blur" [do something]}}.

Contextual components

Label, HelperText, CharacterCount, and Error content are passed to the field as yielded components.

<[F].Label> yielded component
Container that yields its content inside the <label> element. The content can be a simple string or a more complex/structured string, in which case it inherits the text style. For details about its API, check the Form::Label component.

The for attribute of the label is automatically generated using the controlId value of the control.
<[F].HelperText> yielded component
Container that yields its content inside the "helper text" block. The content can be a simple string or a more complex/structured string, in which case it inherits the text style. For details about its API, check the Form::HelperText component.

The id attribute of the element is automatically generated using the controlId value of the control.
<[F].CharacterCount> yielded component
An auto-generated or custom character count message to guide users when editing a field. For details about its API, check the Form::CharacterCount component.

The id attribute of the element is automatically generated using the controlId value of the control.
<[F].Error> yielded component
Container that yields its content inside the "error" block. The content can be a simple string or a more complex/structured string, in which case it inherits the text style. For details about its API, check the Form::Error component.

The id attribute of the Error element is automatically generated.
<[E].Message> yielded component
If the error is made of multiple messages, you can iterate over a collection of error messages yielding individual items using Error.Message.

Anatomy

Anatomy of form MaskedInput

Element Usage
Label Required
Indicator Optional
Helper text Optional
Placeholder/Value Optional
Toggle button Required
Control Required
Error message Triggered by system

States

Example of masked input states

isMultiline

Example of masked input states

Keyboard navigation

Tab

Focus on the input

Keyboard masked input focus example

Tab

Move focus to the toggle button

Keyboard masked input toggle focus example

Spacebar
Enter

Activates toggle to show/hide the input value

Keyboard masked input toggle focus example

Conformance rating

Form::MaskedInput::Field

Conformant

Form::MaskedInput::Field is conformant when used as directed. For this reason, we recommend using Form::MaskedInput::Field when possible.

Form::MaskedInput::Base

Conditionally conformant

Form::MaskedInput::Base is not conformant until it has an accessible name.

Known issues

If a link is used within a label, helper text, or error text, it will not be presented as a link to the user with a screen reader; only the text content is read out. As such, care should be used when considering this feature.

Applicable WCAG Success Criteria

This section is for reference only, some descriptions have been truncated for brevity. This component intends to conform to the following WCAG Success Criteria:

  • 1.3.1 Info and Relationships (Level A):
    Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text.
  • 1.3.2 Meaningful Sequence (Level A):
    When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined.
  • 1.3.4 Orientation (Level AA):
    Content does not restrict its view and operation to a single display orientation, such as portrait or landscape.
  • 1.3.5 Identify Input Purpose (Level AA):
    The purpose of each input field collecting information about the user can be programmatically determined when the input field serves a purpose identified in the Input Purposes for User Interface Components section; and the content is implemented using technologies with support for identifying the expected meaning for form input data.
  • 1.4.1 Use of Color (Level A):
    Color is not used as the only visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element.
  • 1.4.10 Reflow (Level AA):
    Content can be presented without loss of information or functionality, and without requiring scrolling in two dimensions.
  • 1.4.11 Non-text Contrast (Level AA):
    The visual presentation of the following have a contrast ratio of at least 3:1 against adjacent color(s): user interface components; graphical objects.
  • 1.4.12 Text Spacing (Level AA):
    No loss of content or functionality occurs by setting all of the following and by changing no other style property: line height set to 1.5; spacing following paragraphs set to at least 2x the font size; letter-spacing set at least 0.12x of the font size, word spacing set to at least 0.16 times the font size.
  • 1.4.3 Minimum Contrast (Level AA):
    The visual presentation of text and images of text has a contrast ratio of at least 4.5:1
  • 1.4.4 Resize Text (Level AA):
    Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality.
  • 2.4.6 Headings and Labels (Level AA):
    Headings and labels describe topic or purpose.
  • 2.4.7 Focus Visible (Level AA):
    Any keyboard operable user interface has a mode of operation where the keyboard focus indicator is visible.
  • 3.2.1 On Focus (Level A):
    When any user interface component receives focus, it does not initiate a change of context.
  • 3.2.2 On Input (Level A):
    Changing the setting of any user interface component does not automatically cause a change of context unless the user has been advised of the behavior before using the component.
  • 3.2.4 Consistent Identification (Level AA):
    Components that have the same functionality within a set of Web pages are identified consistently.
  • 3.3.1 Error Identification (Level A):
    If an input error is automatically detected, the item that is in error is identified and the error is described to the user in text.
  • 3.3.2 Labels or Instructions (Level A):
    Labels or instructions are provided when content requires user input.
  • 4.1.2 Name, Role, Value (Level A):
    For all user interface components, the name and role can be programmatically determined; states, properties, and values that can be set by the user can be programmatically set; and notification of changes to these items is available to user agents, including assistive technologies.

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