@wordpress/block-editor
Version:
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JavaScript
/**
* External dependencies
*/
import classnames from 'classnames';
/**
* WordPress dependencies
*/
import { Button, Spinner, Notice, TextControl } from '@wordpress/components';
import { __ } from '@wordpress/i18n';
import { useRef, useState, useEffect } from '@wordpress/element';
import { focus } from '@wordpress/dom';
import { ENTER } from '@wordpress/keycodes';
import { isShallowEqualObjects } from '@wordpress/is-shallow-equal';
/**
* Internal dependencies
*/
import LinkControlSettingsDrawer from './settings-drawer';
import LinkControlSearchInput from './search-input';
import LinkPreview from './link-preview';
import LinkSettings from './settings';
import useCreatePage from './use-create-page';
import useInternalValue from './use-internal-value';
import { ViewerFill } from './viewer-slot';
import { DEFAULT_LINK_SETTINGS } from './constants';
/**
* Default properties associated with a link control value.
*
* @typedef WPLinkControlDefaultValue
*
* @property {string} url Link URL.
* @property {string=} title Link title.
* @property {boolean=} opensInNewTab Whether link should open in a new browser
* tab. This value is only assigned if not
* providing a custom `settings` prop.
*/
/* eslint-disable jsdoc/valid-types */
/**
* Custom settings values associated with a link.
*
* @typedef {{[setting:string]:any}} WPLinkControlSettingsValue
*/
/* eslint-enable */
/**
* Custom settings values associated with a link.
*
* @typedef WPLinkControlSetting
*
* @property {string} id Identifier to use as property for setting value.
* @property {string} title Human-readable label to show in user interface.
*/
/**
* Properties associated with a link control value, composed as a union of the
* default properties and any custom settings values.
*
* @typedef {WPLinkControlDefaultValue&WPLinkControlSettingsValue} WPLinkControlValue
*/
/** @typedef {(nextValue:WPLinkControlValue)=>void} WPLinkControlOnChangeProp */
/**
* Properties associated with a search suggestion used within the LinkControl.
*
* @typedef WPLinkControlSuggestion
*
* @property {string} id Identifier to use to uniquely identify the suggestion.
* @property {string} type Identifies the type of the suggestion (eg: `post`,
* `page`, `url`...etc)
* @property {string} title Human-readable label to show in user interface.
* @property {string} url A URL for the suggestion.
*/
/** @typedef {(title:string)=>WPLinkControlSuggestion} WPLinkControlCreateSuggestionProp */
/**
* @typedef WPLinkControlProps
*
* @property {(WPLinkControlSetting[])=} settings An array of settings objects. Each object will used to
* render a `ToggleControl` for that setting.
* @property {boolean=} forceIsEditingLink If passed as either `true` or `false`, controls the
* internal editing state of the component to respective
* show or not show the URL input field.
* @property {WPLinkControlValue=} value Current link value.
* @property {WPLinkControlOnChangeProp=} onChange Value change handler, called with the updated value if
* the user selects a new link or updates settings.
* @property {boolean=} noDirectEntry Whether to allow turning a URL-like search query directly into a link.
* @property {boolean=} showSuggestions Whether to present suggestions when typing the URL.
* @property {boolean=} showInitialSuggestions Whether to present initial suggestions immediately.
* @property {boolean=} withCreateSuggestion Whether to allow creation of link value from suggestion.
* @property {Object=} suggestionsQuery Query parameters to pass along to wp.blockEditor.__experimentalFetchLinkSuggestions.
* @property {boolean=} noURLSuggestion Whether to add a fallback suggestion which treats the search query as a URL.
* @property {boolean=} hasTextControl Whether to add a text field to the UI to update the value.title.
* @property {string|Function|undefined} createSuggestionButtonText The text to use in the button that calls createSuggestion.
* @property {Function} renderControlBottom Optional controls to be rendered at the bottom of the component.
*/
const noop = () => {};
/**
* Renders a link control. A link control is a controlled input which maintains
* a value associated with a link (HTML anchor element) and relevant settings
* for how that link is expected to behave.
*
* @param {WPLinkControlProps} props Component props.
*/
function LinkControl( {
searchInputPlaceholder,
value,
settings = DEFAULT_LINK_SETTINGS,
onChange = noop,
onRemove,
onCancel,
noDirectEntry = false,
showSuggestions = true,
showInitialSuggestions,
forceIsEditingLink,
createSuggestion,
withCreateSuggestion,
inputValue: propInputValue = '',
suggestionsQuery = {},
noURLSuggestion = false,
createSuggestionButtonText,
hasRichPreviews = false,
hasTextControl = false,
renderControlBottom = null,
} ) {
if ( withCreateSuggestion === undefined && createSuggestion ) {
withCreateSuggestion = true;
}
const isMounting = useRef( true );
const wrapperNode = useRef();
const textInputRef = useRef();
const isEndingEditWithFocus = useRef( false );
const settingsKeys = settings.map( ( { id } ) => id );
const [ settingsOpen, setSettingsOpen ] = useState( false );
const [
internalControlValue,
setInternalControlValue,
setInternalURLInputValue,
setInternalTextInputValue,
createSetInternalSettingValueHandler,
] = useInternalValue( value );
const valueHasChanges =
value && ! isShallowEqualObjects( internalControlValue, value );
const [ isEditingLink, setIsEditingLink ] = useState(
forceIsEditingLink !== undefined
? forceIsEditingLink
: ! value || ! value.url
);
const { createPage, isCreatingPage, errorMessage } =
useCreatePage( createSuggestion );
useEffect( () => {
if (
forceIsEditingLink !== undefined &&
forceIsEditingLink !== isEditingLink
) {
setIsEditingLink( forceIsEditingLink );
}
// Todo: bug if the missing dep is introduced. Will need a fix.
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [ forceIsEditingLink ] );
useEffect( () => {
// We don't auto focus into the Link UI on mount
// because otherwise using the keyboard to select text
// *within* the link format is not possible.
if ( isMounting.current ) {
isMounting.current = false;
return;
}
// Unless we are mounting, we always want to focus either:
// - the URL input
// - the first focusable element in the Link UI.
// But in editing mode if there is a text input present then
// the URL input is at index 1. If not then it is at index 0.
const whichFocusTargetIndex = textInputRef?.current ? 1 : 0;
// Scenario - when:
// - switching between editable and non editable LinkControl
// - clicking on a link
// ...then move focus to the *first* element to avoid focus loss
// and to ensure focus is *within* the Link UI.
const nextFocusTarget =
focus.focusable.find( wrapperNode.current )[
whichFocusTargetIndex
] || wrapperNode.current;
nextFocusTarget.focus();
isEndingEditWithFocus.current = false;
}, [ isEditingLink, isCreatingPage ] );
const hasLinkValue = value?.url?.trim()?.length > 0;
/**
* Cancels editing state and marks that focus may need to be restored after
* the next render, if focus was within the wrapper when editing finished.
*/
const stopEditing = () => {
isEndingEditWithFocus.current = !! wrapperNode.current?.contains(
wrapperNode.current.ownerDocument.activeElement
);
setSettingsOpen( false );
setIsEditingLink( false );
};
const handleSelectSuggestion = ( updatedValue ) => {
// Suggestions may contains "settings" values (e.g. `opensInNewTab`)
// which should not overide any existing settings values set by the
// user. This filters out any settings values from the suggestion.
const nonSettingsChanges = Object.keys( updatedValue ).reduce(
( acc, key ) => {
if ( ! settingsKeys.includes( key ) ) {
acc[ key ] = updatedValue[ key ];
}
return acc;
},
{}
);
onChange( {
...internalControlValue,
...nonSettingsChanges,
// As title is not a setting, it must be manually applied
// in such a way as to preserve the users changes over
// any "title" value provided by the "suggestion".
title: internalControlValue?.title || updatedValue?.title,
} );
stopEditing();
};
const handleSubmit = () => {
if ( valueHasChanges ) {
// Submit the original value with new stored values applied
// on top. URL is a special case as it may also be a prop.
onChange( {
...value,
...internalControlValue,
url: currentUrlInputValue,
} );
}
stopEditing();
};
const handleSubmitWithEnter = ( event ) => {
const { keyCode } = event;
if (
keyCode === ENTER &&
! currentInputIsEmpty // Disallow submitting empty values.
) {
event.preventDefault();
handleSubmit();
}
};
const resetInternalValues = () => {
setInternalControlValue( value );
};
const handleCancel = ( event ) => {
event.preventDefault();
event.stopPropagation();
// Ensure that any unsubmitted input changes are reset.
resetInternalValues();
if ( hasLinkValue ) {
// If there is a link then exist editing mode and show preview.
stopEditing();
} else {
// If there is no link value, then remove the link entirely.
onRemove?.();
}
onCancel?.();
};
const currentUrlInputValue =
propInputValue || internalControlValue?.url || '';
const currentInputIsEmpty = ! currentUrlInputValue?.trim()?.length;
const shownUnlinkControl =
onRemove && value && ! isEditingLink && ! isCreatingPage;
const showSettings = !! settings?.length;
// Only show text control once a URL value has been committed
// and it isn't just empty whitespace.
// See https://github.com/WordPress/gutenberg/pull/33849/#issuecomment-932194927.
const showTextControl = hasLinkValue && hasTextControl;
const isEditing = ( isEditingLink || ! value ) && ! isCreatingPage;
const isDisabled = ! valueHasChanges || currentInputIsEmpty;
return (
<div
tabIndex={ -1 }
ref={ wrapperNode }
className="block-editor-link-control"
>
{ isCreatingPage && (
<div className="block-editor-link-control__loading">
<Spinner /> { __( 'Creating' ) }…
</div>
) }
{ isEditing && (
<>
<div
className={ classnames( {
'block-editor-link-control__search-input-wrapper': true,
'has-text-control': showTextControl,
} ) }
>
<LinkControlSearchInput
currentLink={ value }
className="block-editor-link-control__field block-editor-link-control__search-input"
placeholder={ searchInputPlaceholder }
value={ currentUrlInputValue }
withCreateSuggestion={ withCreateSuggestion }
onCreateSuggestion={ createPage }
onChange={ setInternalURLInputValue }
onSelect={ handleSelectSuggestion }
showInitialSuggestions={ showInitialSuggestions }
allowDirectEntry={ ! noDirectEntry }
showSuggestions={ showSuggestions }
suggestionsQuery={ suggestionsQuery }
withURLSuggestion={ ! noURLSuggestion }
createSuggestionButtonText={
createSuggestionButtonText
}
useLabel={ showTextControl }
/>
{ showTextControl && (
<TextControl
__nextHasNoMarginBottom
ref={ textInputRef }
className="block-editor-link-control__field block-editor-link-control__text-content"
label={ __( 'Text' ) }
value={ internalControlValue?.title }
onChange={ setInternalTextInputValue }
onKeyDown={ handleSubmitWithEnter }
/>
) }
</div>
{ errorMessage && (
<Notice
className="block-editor-link-control__search-error"
status="error"
isDismissible={ false }
>
{ errorMessage }
</Notice>
) }
</>
) }
{ value && ! isEditingLink && ! isCreatingPage && (
<LinkPreview
key={ value?.url } // force remount when URL changes to avoid race conditions for rich previews
value={ value }
onEditClick={ () => setIsEditingLink( true ) }
hasRichPreviews={ hasRichPreviews }
hasUnlinkControl={ shownUnlinkControl }
onRemove={ onRemove }
/>
) }
{ isEditing && (
<div className="block-editor-link-control__tools">
{ showSettings && (
<LinkControlSettingsDrawer
settingsOpen={ settingsOpen }
setSettingsOpen={ setSettingsOpen }
>
<LinkSettings
value={ internalControlValue }
settings={ settings }
onChange={ createSetInternalSettingValueHandler(
settingsKeys
) }
/>
</LinkControlSettingsDrawer>
) }
<div className="block-editor-link-control__search-actions">
<Button
variant="primary"
onClick={ isDisabled ? noop : handleSubmit }
className="block-editor-link-control__search-submit"
aria-disabled={ isDisabled }
>
{ __( 'Save' ) }
</Button>
<Button variant="tertiary" onClick={ handleCancel }>
{ __( 'Cancel' ) }
</Button>
</div>
</div>
) }
{ renderControlBottom && renderControlBottom() }
</div>
);
}
LinkControl.ViewerFill = ViewerFill;
export default LinkControl;