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index.js
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/**
* WordPress dependencies
*/
import { __ } from 'i18n';
import { Button, Toolbar, Placeholder } from 'components';
import { pick } from 'lodash';
/**
* Internal dependencies
*/
import './style.scss';
import './block.scss';
import { registerBlockType } from '../../api';
import InspectorControls from '../../inspector-controls';
import RangeControl from '../../inspector-controls/range-control';
import ToggleControl from '../../inspector-controls/toggle-control';
import BlockControls from '../../block-controls';
import BlockAlignmentToolbar from '../../block-alignment-toolbar';
import GalleryImage from './gallery-image';
import BlockDescription from '../../block-description';
const MAX_COLUMNS = 8;
// the media library image object contains numerous attributes
// we only need this set to display the image in the library
const slimImageObjects = ( imgs ) => {
const attrSet = [ 'sizes', 'mime', 'type', 'subtype', 'id', 'url', 'alt' ];
return imgs.map( ( img ) => pick( img, attrSet ) );
};
const createFrameConfig = {
frame: 'post',
title: __( 'Create Gallery' ),
button: {
text: __( 'Select' ),
},
multiple: true,
state: 'gallery',
toolbar: 'main-gallery',
menu: 'gallery',
};
const editFrameConfig = {
frame: 'post',
title: __( 'Update Gallery media' ),
button: {
text: __( 'Select' ),
},
multiple: true,
state: 'gallery-edit',
};
const openMediaLibrary = ( frameConfig, attributes, setAttributes ) => {
frameConfig.selection = new wp.media.model.Selection( attributes.images, { multiple: true } );
const mediaFrame = wp.media( frameConfig );
// the frameConfig settings dont carry to other state modals
// so requires setting this attribute directory to not show settings
mediaFrame.state( 'gallery' ).attributes.displaySettings = false;
function updateFn() {
setAttributes( {
images: slimImageObjects( this.frame.state().attributes.library.models.map( ( a ) => {
return a.attributes;
} ) ),
} );
}
mediaFrame.on( 'insert', updateFn );
mediaFrame.state( 'gallery-edit' ).on( 'update', updateFn );
mediaFrame.open( 'gutenberg-gallery' );
};
function defaultColumnsNumber( attributes ) {
attributes.images = attributes.images || [];
return Math.min( 3, attributes.images.length );
}
registerBlockType( 'core/gallery', {
title: __( 'Gallery' ),
icon: 'format-gallery',
category: 'common',
getEditWrapperProps( attributes ) {
const { align } = attributes;
if ( 'left' === align || 'right' === align || 'wide' === align || 'full' === align ) {
return { 'data-align': align };
}
},
edit( { attributes, setAttributes, focus, className } ) {
const { images = [], columns = defaultColumnsNumber( attributes ), align = 'none' } = attributes;
const setColumnsNumber = ( event ) => setAttributes( { columns: event.target.value } );
const updateAlignment = ( nextAlign ) => setAttributes( { align: nextAlign } );
const { imageCrop = true } = attributes;
const toggleImageCrop = () => setAttributes( { imageCrop: ! imageCrop } );
const controls = (
focus && (
<BlockControls key="controls">
<BlockAlignmentToolbar
value={ align }
onChange={ updateAlignment }
controls={ [ 'left', 'center', 'right', 'wide', 'full' ] }
/>
{ !! images.length && (
<Toolbar controls={ [ {
icon: 'edit',
title: __( 'Edit Gallery' ),
onClick: () => openMediaLibrary( editFrameConfig, attributes, setAttributes ),
} ] } />
) }
</BlockControls>
)
);
if ( images.length === 0 ) {
return [
controls,
<Placeholder
key="placeholder"
instructions={ __( 'Drag images here or insert from media library' ) }
icon="format-gallery"
label={ __( 'Gallery' ) }
className={ className }>
<Button
isLarge="true"
onClick={ () => openMediaLibrary( createFrameConfig, attributes, setAttributes ) }
>
{ __( 'Insert from Media Library' ) }
</Button>
</Placeholder>,
];
}
return [
controls,
focus && images.length > 1 && (
<InspectorControls key="inspector">
<BlockDescription>
<p>{ __( 'Image galleries are a great way to share groups of pictures on your site.' ) }</p>
</BlockDescription>
<h3>{ __( 'Gallery Settings' ) }</h3>
<RangeControl
label={ __( 'Columns' ) }
value={ columns }
onChange={ setColumnsNumber }
min="1"
max={ Math.min( MAX_COLUMNS, images.length ) }
/>
<ToggleControl
label={ __( 'Crop Images' ) }
checked={ !! imageCrop }
onChange={ toggleImageCrop }
/>
</InspectorControls>
),
<div key="gallery" className={ `${ className } align${ align } columns-${ columns } ${ imageCrop ? 'is-cropped' : '' }` }>
{ images.map( ( img ) => (
<GalleryImage key={ img.url } img={ img } />
) ) }
</div>,
];
},
save( { attributes } ) {
const { images, columns = defaultColumnsNumber( attributes ), align = 'none', imageCrop = true } = attributes;
return (
<div className={ `align${ align } columns-${ columns } ${ imageCrop ? 'is-cropped' : '' }` } >
{ images.map( ( img ) => (
<GalleryImage key={ img.url } img={ img } />
) ) }
</div>
);
},
} );