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Block editor: move layout styles to document head (instead of rendering inline) #32083

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merged 7 commits into from
Jul 13, 2021
Merged

Block editor: move layout styles to document head (instead of rendering inline) #32083

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8ee997a
Block editor: move layout styles to document head (instead of renderi…
ellatrix May 21, 2021
05ff925
Also move front-end styles
ellatrix Jun 10, 2021
bc621eb
Move into body
ellatrix Jun 11, 2021
a45edcf
Fix style and svg defs position on front end
ellatrix Jun 11, 2021
98533f8
Fix e2e test error
ellatrix Jun 16, 2021
53bb610
Address feedback and attempt to fix e2e tests
ellatrix Jul 9, 2021
5b55a9d
Remove display:none
ellatrix Jul 13, 2021
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10 changes: 9 additions & 1 deletion lib/block-supports/duotone.php
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Original file line number Diff line number Diff line change
Expand Up @@ -351,7 +351,15 @@ function ( $selector ) use ( $duotone_id ) {
1
);

return $content . $duotone;
add_action(
// Ideally we should use wp_head, but SVG defs can't be put in there.
'wp_footer',
function () use ( $duotone ) {
echo $duotone;
}
);

return $content;
}

// Register the block support.
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12 changes: 11 additions & 1 deletion lib/block-supports/layout.php
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Original file line number Diff line number Diff line change
Expand Up @@ -86,7 +86,17 @@ function gutenberg_render_layout_support_flag( $block_content, $block ) {
1
);

return $content . '<style>' . $style . '</style>';
// Ideally styles should be loaded in the head, but blocks may be parsed
// after that, so loading in the footer for now.
// See https://core.trac.wordpress.org/ticket/53494.
add_action(
'wp_footer',
function () use ( $style ) {
echo '<style>' . $style . '</style>';
}
);

return $content;
}

// This can be removed when plugin support requires WordPress 5.8.0+.
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18 changes: 18 additions & 0 deletions packages/block-editor/src/components/block-list/head.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
/**
* WordPress dependencies
*/
import { createContext, useState } from '@wordpress/element';

const context = createContext();

export function Head( { children } ) {
const [ element, setElement ] = useState();
return (
<context.Provider value={ element }>
<div ref={ setElement } />
{ children }
</context.Provider>
);
}

Head.context = context;
39 changes: 21 additions & 18 deletions packages/block-editor/src/components/block-list/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ import { usePreParsePatterns } from '../../utils/pre-parse-patterns';
import { LayoutProvider, defaultLayout } from './layout';
import BlockToolsBackCompat from '../block-tools/back-compat';
import { useBlockSelectionClearer } from '../block-selection-clearer';
import { Head } from './head';

export const IntersectionObserver = createContext();

Expand All @@ -42,24 +43,26 @@ function Root( { className, children } ) {
[]
);
return (
<div
ref={ useMergeRefs( [
useBlockSelectionClearer(),
useBlockDropZone(),
useInBetweenInserter(),
] ) }
className={ classnames(
'block-editor-block-list__layout is-root-container',
className,
{
'is-outline-mode': isOutlineMode,
'is-focus-mode': isFocusMode && isLargeViewport,
'is-navigate-mode': isNavigationMode,
}
) }
>
{ children }
</div>
<Head>
<div
ref={ useMergeRefs( [
useBlockSelectionClearer(),
useBlockDropZone(),
useInBetweenInserter(),
] ) }
className={ classnames(
'block-editor-block-list__layout is-root-container',
className,
{
'is-outline-mode': isOutlineMode,
'is-focus-mode': isFocusMode && isLargeViewport,
'is-navigate-mode': isNavigationMode,
}
) }
>
{ children }
</div>
</Head>
);
}

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18 changes: 13 additions & 5 deletions packages/block-editor/src/hooks/duotone.js
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ import { getBlockSupport, hasBlockSupport } from '@wordpress/blocks';
import { SVG } from '@wordpress/components';
import { createHigherOrderComponent, useInstanceId } from '@wordpress/compose';
import { addFilter } from '@wordpress/hooks';
import { useContext, createPortal } from '@wordpress/element';

/**
* Internal dependencies
Expand All @@ -20,6 +21,7 @@ import {
__experimentalDuotoneControl as DuotoneControl,
useSetting,
} from '../components';
import { Head } from '../components/block-list/head';

const EMPTY_ARRAY = [];

Expand Down Expand Up @@ -240,13 +242,19 @@ const withDuotoneStyles = createHigherOrderComponent(

const className = classnames( props?.className, id );

const element = useContext( Head.context );
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This breaks the hooks rules (it should be called before the if call above)


return (
<>
<DuotoneFilter
selector={ selectorsGroup }
id={ id }
values={ getValuesFromColors( values ) }
/>
{ element &&
createPortal(
<DuotoneFilter
selector={ selectorsGroup }
id={ id }
values={ getValuesFromColors( values ) }
/>,
element
) }
<BlockListBlock { ...props } className={ className } />
</>
);
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16 changes: 12 additions & 4 deletions packages/block-editor/src/hooks/layout.js
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ import {
} from '@wordpress/components';
import { __ } from '@wordpress/i18n';
import { Icon, positionCenter, stretchWide } from '@wordpress/icons';
import { useContext, createPortal } from '@wordpress/element';

/**
* Internal dependencies
Expand All @@ -28,6 +29,7 @@ import { store as blockEditorStore } from '../store';
import { InspectorControls } from '../components';
import useSetting from '../components/use-setting';
import { LayoutStyle } from '../components/block-list/layout';
import { Head } from '../components/block-list/head';

function LayoutPanel( { setAttributes, attributes } ) {
const { layout = {} } = attributes;
Expand Down Expand Up @@ -210,12 +212,18 @@ export const withLayoutStyles = createHigherOrderComponent(
`wp-container-${ id }`
);

const element = useContext( Head.context );
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same here


return (
<>
<LayoutStyle
selector={ `.wp-container-${ id }` }
layout={ usedLayout }
/>
{ element &&
createPortal(
<LayoutStyle
selector={ `.wp-container-${ id }` }
layout={ usedLayout }
/>,
element
) }
<BlockListBlock { ...props } className={ className } />
</>
);
Expand Down