/var/www/greso.tech/server/nsm/node_modules/pdf-lib/es/api/form
Edit: /var/www/greso.tech/server/nsm/node_modules/pdf-lib/es/api/form/PDFRadioGroup.d.ts (11463B)
import PDFDocument from "../PDFDocument";
import PDFPage from "../PDFPage";
import PDFField, { FieldAppearanceOptions } from "./PDFField";
import { AppearanceProviderFor } from "./appearances";
import { PDFRef, PDFAcroRadioButton } from "../../core";
/**
* Represents a radio group field of a [[PDFForm]].
*
* [[PDFRadioGroup]] fields are collections of radio buttons. The purpose of a
* radio group is to enable users to select one option from a set of mutually
* exclusive choices. Each choice in a radio group is represented by a radio
* button. Radio buttons each have two states: `on` and `off`. At most one
* radio button in a group may be in the `on` state at any time. Users can
* click on a radio button to select it (and thereby automatically deselect any
* other radio button that might have already been selected). Some radio
* groups allow users to toggle a selected radio button `off` by clicking on
* it (see [[PDFRadioGroup.isOffToggleable]]).
*
* Note that some radio groups allow multiple radio buttons to be in the `on`
* state at the same type **if** they represent the same underlying value (see
* [[PDFRadioGroup.isMutuallyExclusive]]).
*/
export default class PDFRadioGroup extends PDFField {
/**
* > **NOTE:** You probably don't want to call this method directly. Instead,
* > consider using the [[PDFForm.getOptionList]] method, which will create an
* > instance of [[PDFOptionList]] for you.
*
* Create an instance of [[PDFOptionList]] from an existing acroRadioButton
* and ref
*
* @param acroRadioButton The underlying `PDFAcroRadioButton` for this
* radio group.
* @param ref The unique reference for this radio group.
* @param doc The document to which this radio group will belong.
*/
static of: (acroRadioButton: PDFAcroRadioButton, ref: PDFRef, doc: PDFDocument) => PDFRadioGroup;
/** The low-level PDFAcroRadioButton wrapped by this radio group. */
readonly acroField: PDFAcroRadioButton;
private constructor();
/**
* Get the list of available options for this radio group. Each option is
* represented by a radio button. These radio buttons are displayed at
* various locations in the document, potentially on different pages (though
* typically they are stacked horizontally or vertically on the same page).
* For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* const options = radioGroup.getOptions()
* console.log('Radio Group options:', options)
* ```
* @returns The options for this radio group.
*/
getOptions(): string[];
/**
* Get the selected option for this radio group. The selected option is
* represented by the radio button in this group that is turned on. At most
* one radio button in a group can be selected. If no buttons in this group
* are selected, `undefined` is returned.
* For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* const selected = radioGroup.getSelected()
* console.log('Selected radio button:', selected)
* ```
* @returns The selected option for this radio group.
*/
getSelected(): string | undefined;
/**
* Select an option for this radio group. This operation is analogous to a
* human user clicking one of the radio buttons in this group via a PDF
* reader to toggle it on. This method will update the underlying state of
* the radio group to indicate which option has been selected. PDF libraries
* and readers will be able to extract this value from the saved document and
* determine which option was selected.
*
* For example:
* ```js
* const radioGroup = form.getRadioGroup('best.superhero.radioGroup')
* radioGroup.select('One Punch Man')
* ```
*
* This method will mark this radio group as dirty, causing its appearance
* streams to be updated when either [[PDFDocument.save]] or
* [[PDFForm.updateFieldAppearances]] is called. The updated appearance
* streams will display a dot inside the widget of this check box field
* that represents the selected option.
*
* @param option The option to be selected.
*/
select(option: string): void;
/**
* Clear any selected option for this dropdown. This will result in all
* radio buttons in this group being toggled off. This method will update
* the underlying state of the dropdown to indicate that no radio buttons
* have been selected.
* For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* radioGroup.clear()
* ```
* This method will mark this radio group as dirty. See
* [[PDFRadioGroup.select]] for more details about what this means.
*/
clear(): void;
/**
* Returns `true` if users can click on radio buttons in this group to toggle
* them off. The alternative is that once a user clicks on a radio button
* to select it, the only way to deselect it is by selecting on another radio
* button in the group. See [[PDFRadioGroup.enableOffToggling]] and
* [[PDFRadioGroup.disableOffToggling]]. For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* if (radioGroup.isOffToggleable()) console.log('Off toggling is enabled')
* ```
*/
isOffToggleable(): boolean;
/**
* Allow users to click on selected radio buttons in this group to toggle
* them off. For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* radioGroup.enableOffToggling()
* ```
* > **NOTE:** This feature is documented in the PDF specification
* > (Table 226). However, most PDF readers do not respect this option and
* > prevent users from toggling radio buttons off even when it is enabled.
* > At the time of this writing (9/6/2020) Mac's Preview software did
* > respect the option. Adobe Acrobat, Foxit Reader, and Google Chrome did
* > not.
*/
enableOffToggling(): void;
/**
* Prevent users from clicking on selected radio buttons in this group to
* toggle them off. Clicking on a selected radio button will have no effect.
* The only way to deselect a selected radio button is to click on a
* different radio button in the group. For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* radioGroup.disableOffToggling()
* ```
*/
disableOffToggling(): void;
/**
* Returns `true` if the radio buttons in this group are mutually exclusive.
* This means that when the user selects a radio button, only that specific
* button will be turned on. Even if other radio buttons in the group
* represent the same value, they will not be enabled. The alternative to
* this is that clicking a radio button will select that button along with
* any other radio buttons in the group that share the same value. See
* [[PDFRadioGroup.enableMutualExclusion]] and
* [[PDFRadioGroup.disableMutualExclusion]].
* For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* if (radioGroup.isMutuallyExclusive()) console.log('Mutual exclusion is enabled')
* ```
*/
isMutuallyExclusive(): boolean;
/**
* When the user clicks a radio button in this group it will be selected. In
* addition, any other radio buttons in this group that share the same
* underlying value will also be selected. For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* radioGroup.enableMutualExclusion()
* ```
* Note that this option must be enabled prior to adding options to the
* radio group. It does not currently apply retroactively to existing
* radio buttons in the group.
*/
enableMutualExclusion(): void;
/**
* When the user clicks a radio button in this group only it will be selected.
* No other radio buttons in the group will be selected, even if they share
* the same underlying value. For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* radioGroup.disableMutualExclusion()
* ```
* Note that this option must be disabled prior to adding options to the
* radio group. It does not currently apply retroactively to existing
* radio buttons in the group.
*/
disableMutualExclusion(): void;
/**
* Add a new radio button to this group on the specified page. For example:
* ```js
* const page = pdfDoc.addPage()
*
* const form = pdfDoc.getForm()
* const radioGroup = form.createRadioGroup('best.gundam')
*
* const options = {
* x: 50,
* width: 25,
* height: 25,
* textColor: rgb(1, 0, 0),
* backgroundColor: rgb(0, 1, 0),
* borderColor: rgb(0, 0, 1),
* borderWidth: 2,
* rotate: degrees(90),
* }
*
* radioGroup.addOptionToPage('Exia', page, { ...options, y: 50 })
* radioGroup.addOptionToPage('Dynames', page, { ...options, y: 110 })
* ```
* This will create a new radio button widget for this radio group field.
* @param option The option that the radio button widget represents.
* @param page The page to which the radio button widget should be added.
* @param options The options to be used when adding the radio button widget.
*/
addOptionToPage(option: string, page: PDFPage, options?: FieldAppearanceOptions): void;
/**
* Returns `true` if any of this group's radio button widgets do not have an
* appearance stream for their current state. For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* if (radioGroup.needsAppearancesUpdate()) console.log('Needs update')
* ```
* @returns Whether or not this radio group needs an appearance update.
*/
needsAppearancesUpdate(): boolean;
/**
* Update the appearance streams for each of this group's radio button widgets
* using the default appearance provider for radio groups. For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* radioGroup.defaultUpdateAppearances()
* ```
*/
defaultUpdateAppearances(): void;
/**
* Update the appearance streams for each of this group's radio button widgets
* using the given appearance provider. If no `provider` is passed, the
* default appearance provider for radio groups will be used. For example:
* ```js
* const radioGroup = form.getRadioGroup('some.radioGroup.field')
* radioGroup.updateAppearances((field, widget) => {
* ...
* return {
* normal: { on: drawRadioButton(...), off: drawRadioButton(...) },
* down: { on: drawRadioButton(...), off: drawRadioButton(...) },
* }
* })
* ```
* @param provider Optionally, the appearance provider to be used for
* generating the contents of the appearance streams.
*/
updateAppearances(provider?: AppearanceProviderFor
): void;
private updateWidgetAppearance;
}
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