@lion/ui
Version:
A package of extendable web components
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Markdown
---
parts:
- API Table
- Input File
title: 'Input File: API Table'
eleventyNavigation:
key: API Table >> Input File
title: API Table
order: 90
parent: Input File
---
# Input File: API Table
## class: `FileHandle`
### Fields
| Name | Privacy | Type | Default | Description | Inherited From |
| ----------------- | --------- | --------------- | ----------------- | ----------- | -------------- |
| `failedProp` | public | `Array<string>` | `[]` | | |
| `systemFile` | public | | `systemFile` | | |
| `_acceptCriteria` | protected | | `_acceptCriteria` | | |
### Methods
| Name | Privacy | Description | Parameters | Return | Inherited From |
| ----------------------- | --------- | ----------- | ------------------ | -------- | -------------- |
| `createDownloadUrl` | public | | `file: SystemFile` | | |
| `uploadFileStatus` | public | | | | |
| `_getFileNameExtension` | protected | | `fileName: string` | `string` | |
<hr/>
## class: `LionInputFile`, `lion-input-file`
### Fields
| Name | Privacy | Type | Default | Description | Inherited From |
| ---------------------------- | --------- | ------------------------------------- | ----------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------- |
| `accept` | public | `string` | `''` | | |
| `allowCrossRootRegistration` | public | `boolean` | `false` | To encourage accessibility best practices, \`form-element-register\` events
do not pierce through shadow roots. This forces the developer to create form groups and fieldsets that automatically allow the creation of accessible relationships in the same dom tree.
Use this option if you know what you're doing. It will then be possible to nest FormControls
inside shadow dom. See https\://lion.js.org/fundamentals/rationales/accessibility/#shadow-roots-and-accessibility | LionField |
| `autofocus` | public | `boolean` | `false` | | LionField |
| `buttonLabel` | public | `string` | `''` | The label of the button | |
| `defaultValidators` | public | `Validator[]` | `[]` | Used by Subclassers to add default Validators to a particular FormControl.
A date input for instance, always needs the isDate validator. | LionField |
| `dirty` | public | `boolean` | `false` | True when user has changed the value of the field. | LionField |
| `disabled` | public | `boolean` | `false` | | LionField |
| `enableDropZone` | public | `boolean` | `false` | | |
| `fieldName` | public | `string` | | Will be used in validation messages to refer to the current field | LionField |
| `filled` | public | `boolean` | `false` | True when the modelValue is non-empty (see \_isEmpty in FormControlMixin) | LionField |
| `focused` | public | `boolean` | `false` | Whether the focusable element within (\`.\_focusableNode\`) is focused.
Reflects to attribute '\[focused]' as a styling hook | LionField |
| `focusedVisible` | public | `boolean` | `false` | Whether the focusable element within (\`.\_focusableNode\`) matches ':focus-visible'
Reflects to attribute '\[focused-visible]' as a styling hook
See: https\://developer.mozilla.org/en-US/docs/Web/CSS/:focus-visible | LionField |
| `formatOn` | protected | `string` | `'change'` | Event that will trigger formatting (more precise, visual update of the view, so the
user sees the formatted value)
Default: 'change' | LionField |
| `formatOptions` | public | | `({ mode: 'auto' })` | Configuration object that will be available inside the formatter function | LionField |
| `formattedValue` | public | `string\|undefined` | `undefined` | The view value is the result of the formatter function (when available).
The result will be stored in the native \_inputNode (usually an input\[type=text]).

Examples:
- For a date input, this would be '20/01/1999' (dependent on locale).
- For a number input, this could be '1,234.56' (a String representation of modelValue
1234.56) | LionField |
| `hasFeedbackFor` | public | `ValidationType[]` | `[]` | As soon as validation happens (after modelValue/validators/validator param change), this
array is updated with the active ValidationTypes ('error'\|'warning'\|'success'\|'info' etc.).
Notice the difference with \`.showsFeedbackFor\`, which filters \`.hasFeedbackFor\` based on
\`.feedbackCondition()\`.

For styling purposes, will be reflected to \[has-feedback-for="error warning"]. This can
be useful for subtle visual feedback on keyup, like a red/green border around an input. | LionField |
| `helpText` | public | `string` | | The helpt text for the input node.
When no light dom defined via \[slot=help-text], this value will be used | LionField |
| `isDragging` | public | `boolean` | | | |
| `isPending` | public | `boolean` | `false` | Flag indicating whether async validation is pending.
Creates attribute \[is-pending] as a styling hook | LionField |
| `label` | public | `string` | | The label text for the input node.
When no light dom defined via \[slot=label], this value will be used. | LionField |
| `labelSrOnly` | public | `boolean` | `false` | The label will only be visible for srceen readers when true | LionField |
| `maxFileSize` | public | `number` | `MAX_FILE_SIZE` | | |
| `modelValue` | public | `InputFile[]` | `[]` | | LionField |
| `multiple` | public | `boolean` | `false` | | |
| `name` | public | `string` | `''` | The name the element will be registered with to the .formElements collection
of the parent. Also, it serves as the key of key/value pairs in
 modelValue/serializedValue objects | LionField |
| `operationMode` | public | `OperationMode` | | Types of input interaction of the FormControl (for instance 'enter'\|'select'\|'upload') | LionField |
| `prefilled` | public | `boolean` | `false` | True when user has left non-empty field or input is prefilled.
The name must be seen from the point of view of the input field:
once the user enters the input field, the value is non-empty. | LionField |
| `readOnly` | public | `boolean` | `false` | A Boolean attribute which, if present, indicates that the user should not be able to edit
the value of the input. The difference between disabled and readonly is that read-only
controls can still function, whereas disabled controls generally do not function as
controls until they are enabled.
(From: https\://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-readonly) | LionField |
| `serializedValue` | public | `string\|undefined` | `undefined` | The serialized version of the model value.
This value exists for maximal compatibility with the platform API.
The serialized value can be an interface in context where data binding is not
supported and a serialized string needs to be set.

Examples:
- For a date input, this would be the iso format of a date, e.g. '1999-01-20'.
- For a number input this would be the String representation of a float ('1234.56'
 instead of 1234.56)

When no parser is available, the value is usually the same as the formattedValue
(being \_inputNode.value) | LionField |
| `showsFeedbackFor` | public | `ValidationType[]` | `[]` | Based on outcome of feedbackCondition, this array decides what ValidationTypes should be
shown in validationFeedback, based on meta data like interaction states.

For styling purposes, it reflects it \`\[shows-feedback-for="error warning"]\` | LionField |
| `slots` | public | | | Adds ".\_feedbackNode" as described below | LionField |
| `submitted` | public | | | | LionField |
| `touched` | public | `boolean` | `false` | True when user has focused and left(blurred) the field. | LionField |
| `type` | public | `string` | `'file'` | | |
| `uploadOnSelect` | public | `boolean` | `false` | | |
| `uploadResponse` | public | `UploadResponse[]` | `[]` | | |
| `validationStates` | public | `ValidationStates` | `{}` | The outcome of a validation 'round'. Keyed by ValidationType and Validator name | LionField |
| `validators` | public | `Validator[]` | `[]` | Used by Application Developers to add Validators to a FormControl. | LionField |
| `value` | public | | | The view value. Will be delegated to \`.\_inputNode.value\` | LionField |
| `_acceptCriteria` | protected | | | | |
| `_allValidators` | protected | `(Validator \| MetaValidator)[]` | | Combination of validators provided by Application Developer and the default validators | LionField |
| `_ariaDescribedNodes` | public | `HTMLElement[]` | `[]` | Contains all elements that should end up in aria-describedby of \`.\_inputNode\` | LionField |
| `_ariaLabelledNodes` | public | `HTMLElement[]` | `[]` | Contains all elements that should end up in aria-labelledby of \`.\_inputNode\` | LionField |
| `_buttonNode` | protected | | | | |
| `_feedbackConditionMeta` | protected | | | Allows Subclassers to add meta info for feedbackCondition | LionField |
| `_feedbackNode` | protected | | | Element where validation feedback will be rendered to | LionField |
| `_fileListNode` | protected | `LionSelectedFileList` | | | |
| `_focusableNode` | protected | `HTMLElement` | | The focusable element:
could be an input, textarea, select, button or any other element with tabindex > -1 | LionField |
| `_helpTextNode` | protected | | | Element where help text will be rendered to | LionField |
| `_initialButtonLabel` | protected | `string` | `''` | | |
| `_inputId` | protected | `string` | | Unique id that can be used in all light dom | LionField |
| `_inputNode` | protected | `HTMLInputElement` | | The interactive (form) element. Can be a native element like input/textarea/select or
an element with tabindex > -1 | LionField |
| `_isDragAndDropSupported` | protected | | | | |
| `_isHandlingUserInput` | protected | `boolean` | `false` | Flag that will be set when user interaction takes place (for instance after an 'input'
event). Will be added as meta info to the \`model-value-changed\` event. Depending on
whether a user is interacting, formatting logic will be handled differently. | LionField |
| `_isPasting` | protected | `boolean` | `false` | Whether the user is pasting content. Allows Subclassers to do this in their subclass: | LionField |
| `_isRepropagationEndpoint` | public | `boolean` | `false` | By default, a field with \_repropagationRole 'choice-group' will act as an
'endpoint'. This means it will be considered as an individual field: for
a select, individual options will not be part of the formPath. They
will.
Similarly, components that (a11y wise) need to be fieldsets, but 'interaction wise'
(from Application Developer perspective) need to be more like fields
(think of an amount-input with a currency select box next to it), can set this
to true to hide private internals in the formPath. | LionField |
| `_labelNode` | protected | | | Element where label will be rendered to | LionField |
| `_leaveEvent` | protected | `string` | `'blur'` | The event that triggers the touched state | LionField |
| `_parentFormGroup` | protected | `FormRegistrarHost \| undefined` | `undefined` | The registrar this FormControl registers to, Usually a descendant of FormGroup or
ChoiceGroup | LionField |
| `_repropagationRole` | public | `'child'\|'choice-group'\|'fieldset'` | `'child'` | Based on the role, details of handling model-value-changed repropagation differ. | LionField |
| `_requestedToBeDisabled` | protected | `boolean` | `false` | | LionField |
| `_selectedFilesMetaData` | protected | `InputFile[]` | `[]` | | |
| `_valueChangedEvent` | protected | `string` | `'model-value-changed'` | The event that triggers the dirty state | LionField |
| `_visibleMessagesAmount` | protected | `number` | `1` | The amount of feedback messages that will visible in LionValidationFeedback | LionField |
### Methods
| Name | Privacy | Description | Parameters