TextInput
A text input is a form element that lets users input and edit a single-line text value.
Guidelines
When to use text inputs
Through text input fields, users can input text, numbers, symbols or mixed-format strings (unless specifically restricted).
Use the TextInput component in forms when the user’s answer to a prompt can not easily be predicted, or when there is significant variability in potential inputs. Text inputs should also be used when other form components prove more difficult (require additional steps) to achieve the same result (e.g. selecting a date from a calendar versus typing in the date). The text input used for search queries, known as the search type, is documented in SearchInput.
You can provide autocomplete options that are tailored to the user’s input by using Lookup.
Specifications
- Icon (optional)
Icons can add to simple identification of specific user inputs. Examples are 'search' magnifying glass for search bars or 'user avatar' for user login input fields. - Placeholder text (optional)
The placeholder text provides an example of what type of information is being requested in the input. The placeholder text should further illustrate and support the text input label. However, it should never be the only input description. - End icon (optional)
A secondary end icon can be included if needed. - Clear button (optional)
A 'clear' indicator can be included to remove the typed content within the input field.
Component limitations
The base min-width for the TextInput component is set at @size-1600
(equivalent to 256px
in the default Codex theme), but it can be customized to a smaller width if needed. There is no maximum width limit.
If the text entered in the input exceeds the available space, it will overflow horizontally.
Refer to the TextInput component in Codex Figma.
Types
The text input can accommodate the following types of inputs:
- Text
- Search
- Number
- Password
- Telephone
- URL
- Week
- Month
- Date
- Date and time
- Time
Interaction states
Text inputs have the following visually separate states:
- Default
- Hover
- Active - Focus
- Filled
- Disabled
- Read-only
- Error default
- Error hover
- Error focus
- Error filled
Best practices
Consider the following recommendations when using text inputs.
Usage
- Integrate the TextInput within a Field component to use all available properties of Field, such as label, helper text, and error messages.
- Use standalone TextInput outside of a Field component.
- Use TextInputs without a label, as the label is essential for accessibility and ease of scanning.
Icon
- Use a start icon that meets the input's requirements.
- Use icons that are difficult to understand or do not clearly convey their purpose.
Keyboard navigation
Key | Function |
---|---|
Left arrow / Right arrow | The left and right arrows navigate through the text content within the input. |
Up arrow / Down arrow | Up arrow moves the focus from the last position of the input to the first one, while down arrow moves it from the first position to the last. |
Demos
Configurable
Name | Value |
---|---|
Props | |
startIcon | |
endIcon | |
clearable | |
status | |
disabled | |
readonly | |
placeholder | |
View | |
Reading direction | |
Note: For icon properties, the relevant icon also needs to be imported from the @wikimedia/codex-icons package. See the usage documentation for more information. |
Default
This simple example demonstrates how to bind a reactive reference to the input's value via v-model
. The reactive reference will automatically update when the input value changes.
Open up the browser console to see events emitted on input, change, focus, and blur.
Input value:
In this example, the parent component sets an initial value and has a reset button that will restore that initial value on click.
Input value: Initial value
Input type
Use the inputType
prop to set the native <input>
type attribute. Some inputType
values will result in a browser provided UI like the date inputType
provided below.
Input value:
Clearable
Including the clearable
prop will add a clear button to the end of the icon when the input is not empty. On click, the clear button will set the input value to an empty string.
Input value:
With icons
A TextInput can have a startIcon
, an endIcon
, or both. Any Codex icon can be used.
Note that a clearable TextInput with an endIcon
will display both the clear button and the endIcon
when the input is not empty. To see this behavior, type in the input below.
With placeholder
To add placeholder text, add a placeholder
attribute.
Disabled
To disable the input, add the disabled
attribute.
Form field
A TextInput can be wrapped in the Field component to add features like a semantic label, description and help text, validation messages, and more. See the Field page for more information.
Native validation
The TextInput component exposes native constraint validation methods. Refer to the methods below to see all of the supported features.
This demo sets the input type to "email" and validates the input on blur. When the input is invalid, it sets the Field's status to "error" and passes the native validation message to the Field component for display.
Vue usage
v-model
is used to track the current value of the input. See the events docs for details on emitted events and their properties.
Attributes passed to input
This component will pass any HTML attributes applied to it, except for CSS class, to the <input>
element within the component.
Props
Prop name | Description | Type | Values | Default |
---|---|---|---|---|
modelValue | Current value of the input. Provided by v-model binding in the parent component. | string|number | - | '' |
inputType | type attribute of the input. | TextInputType | 'text' , 'search' , 'number' , 'email' , 'password' , 'tel' , 'url' , 'week' , 'month' , 'date' , 'datetime-local' , 'time' | 'text' |
status | status attribute of the input. | ValidationStatusType | - | 'default' |
disabled | Whether the input is disabled. | boolean | - | false |
startIcon | An icon at the start of the input element. Similar to a ::before pseudo-element. | Icon|undefined | - | undefined |
endIcon | An icon at the end of the input element. Similar to an ::after pseudo-element. | Icon|undefined | - | undefined |
clearable | Add a clear button at the end of the input element. When the clear button is pressed, the input's value is set to an empty string. The clear button is displayed when input text is present. | boolean | - | false |
Methods
Method name | Description | Signature |
---|---|---|
focus | Focus the component's input element. | Returns: void |
blur | Blur the component's input element. | Returns: void |
checkValidity | Check the validity of the input element according to its constraint attributes. Emits an 'invalid' event if the input is invalid. See: https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/checkValidity | Returns: boolean Whether the input is valid |
reportValidity | Check the validity of the input element and report it as a pop up on the UI. See: https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/reportValidity | Returns: boolean Whether the input is valid |
setCustomValidity | Set custom validity and message for the input element. See: https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/setCustomValidity | Params:
void |
Events
Event name | Properties | Description |
---|---|---|
update:modelValue | modelValue string|number - The new model value | When the input value changes |
keydown | undefined KeyboardEvent | When the user presses a key. This event is not emitted when the user presses the Home or End key (T314728), but is emitted for Ctrl/Cmd+Home and Ctrl/Cmd+End. |
input | event InputEvent | When the input value changes via direct use of the input |
change | event Event | When an input value change is committed by the user (e.g. on blur) |
focus | event FocusEvent | When the input comes into focus |
blur | event FocusEvent | When the input loses focus |
clear | event MouseEvent | When the input value is cleared through the use of the clear button |
invalid | event Event | When the input value is invalid according to the input's constraint attributes (e.g. min, max, pattern). See: https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/invalid_event |
CSS-only version
Markup structure
The CSS-only TextInput component consists of a <div>
wrapping an <input>
element.
With icons
You can use CSS-only icons to add start and end icons to the input.
You'll need the following CSS classes on the root element:
- Start icon:
.cdx-text-input--has-start-icon
- End icon:
.cdx-text-input--has-end-icon
The icons will be <span>
elements with the .cdx-text-input__icon
class, plus:
- Start icon:
.cdx-text-input__start-icon
- End icon:
.cdx-text-input__end-icon
You will need to add your own CSS classes to set the icon styles and background image.
Disabled
Add the disabled
attribute to the <input>
element for a disabled text input.
Error state
Add the .cdx-text-input--status-error
class to the root element to show error styles.