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Inserter: fix line to show again #20792

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merged 4 commits into from
Jul 20, 2020
Merged

Inserter: fix line to show again #20792

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1fb8658
Inserter: fix line to show again
ellatrix Jul 5, 2020
a79df8e
Fix client id
ellatrix Jul 5, 2020
d4bc33e
Split component
ellatrix Jul 20, 2020
4a50096
Reorganise
ellatrix Jul 20, 2020
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214 changes: 120 additions & 94 deletions packages/block-editor/src/components/block-list/insertion-point.js
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Original file line number Diff line number Diff line change
Expand Up @@ -18,57 +18,139 @@ import Inserter from '../inserter';
import { getClosestTabbable } from '../writing-flow';
import { getBlockDOMNode } from '../../utils/dom';

function Indicator( { clientId } ) {
const showInsertionPoint = useSelect(
function InsertionPointInserter( {
clientId,
setIsInserterForced,
containerRef,
} ) {
const ref = useRef();
// Hide the inserter above the selected block and during multi-selection.
const isInserterHidden = useSelect(
( select ) => {
const {
getBlockIndex,
getBlockInsertionPoint,
isBlockInsertionPointVisible,
getBlockRootClientId,
getMultiSelectedBlockClientIds,
getSelectedBlockClientId,
hasMultiSelection,
} = select( 'core/block-editor' );
const rootClientId = getBlockRootClientId( clientId );
const blockIndex = getBlockIndex( clientId, rootClientId );
const insertionPoint = getBlockInsertionPoint();
return (
isBlockInsertionPointVisible() &&
insertionPoint.index === blockIndex &&
insertionPoint.rootClientId === rootClientId
);
const multiSelectedBlockClientIds = getMultiSelectedBlockClientIds();
const selectedBlockClientId = getSelectedBlockClientId();

return hasMultiSelection()
? multiSelectedBlockClientIds.includes( clientId )
: clientId === selectedBlockClientId;
},
[ clientId ]
);

if ( ! showInsertionPoint ) {
return null;
function focusClosestTabbable( event ) {
const { clientX, clientY, target } = event;

// Only handle click on the wrapper specifically, and not an event
// bubbled from the inserter itself.
if ( target !== ref.current ) {
return;
}

const targetRect = target.getBoundingClientRect();
const isReverse = clientY < targetRect.top + targetRect.height / 2;
const blockNode = getBlockDOMNode( clientId );
const container = isReverse ? containerRef.current : blockNode;
const closest =
getClosestTabbable( blockNode, true, container ) || blockNode;
const rect = new window.DOMRect( clientX, clientY, 0, 16 );

placeCaretAtVerticalEdge( closest, isReverse, rect, false );
}

return (
<div className="block-editor-block-list__insertion-point-indicator" />
/* eslint-disable-next-line jsx-a11y/no-static-element-interactions, jsx-a11y/click-events-have-key-events */
<div
ref={ ref }
onFocus={ () => setIsInserterForced( true ) }
onBlur={ () => setIsInserterForced( false ) }
onClick={ focusClosestTabbable }
// While ideally it would be enough to capture the
// bubbling focus event from the Inserter, due to the
// characteristics of click focusing of `button`s in
// Firefox and Safari, it is not reliable.
//
// See: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#Clicking_and_focus
tabIndex={ -1 }
className={ classnames(
'block-editor-block-list__insertion-point-inserter',
{
'is-inserter-hidden': isInserterHidden,
}
) }
>
<Inserter
position="bottom center"
clientId={ clientId }
__experimentalIsQuick
/>
</div>
);
}

export default function InsertionPoint( {
hasMultiSelection,
selectedBlockClientId,
children,
function InsertionPointPopover( {
clientId,
isInserterShown,
isInserterForced,
setIsInserterForced,
containerRef,
showInsertionPoint,
} ) {
const element = getBlockDOMNode( clientId );

return (
<Popover
noArrow
animate={ false }
anchorRef={ element }
position="top right left"
focusOnMount={ false }
className="block-editor-block-list__insertion-point-popover"
__unstableSlotName="block-toolbar"
>
<div
className="block-editor-block-list__insertion-point"
style={ { width: element?.offsetWidth } }
>
{ showInsertionPoint && (
<div className="block-editor-block-list__insertion-point-indicator" />
) }
{ ( isInserterShown || isInserterForced ) && (
<InsertionPointInserter
clientId={ clientId }
setIsInserterForced={ setIsInserterForced }
containerRef={ containerRef }
/>
) }
</div>
</Popover>
);
}

export default function InsertionPoint( { children, containerRef } ) {
const [ isInserterShown, setIsInserterShown ] = useState( false );
const [ isInserterForced, setIsInserterForced ] = useState( false );
const [ inserterElement, setInserterElement ] = useState( null );
const [ inserterClientId, setInserterClientId ] = useState( null );
const ref = useRef();
const { multiSelectedBlockClientIds, isMultiSelecting } = useSelect(
const { isMultiSelecting, isInserterVisible, selectedClientId } = useSelect(
( select ) => {
const {
getMultiSelectedBlockClientIds,
isMultiSelecting: _isMultiSelecting,
isBlockInsertionPointVisible,
getBlockInsertionPoint,
getBlockOrder,
} = select( 'core/block-editor' );

const insertionPoint = getBlockInsertionPoint();
const order = getBlockOrder( insertionPoint.rootClientId );

return {
isMultiSelecting: _isMultiSelecting(),
multiSelectedBlockClientIds: getMultiSelectedBlockClientIds(),
isInserterVisible: isBlockInsertionPointVisible(),
selectedClientId: order[ insertionPoint.index ],
};
},
[]
Expand Down Expand Up @@ -117,80 +199,24 @@ export default function InsertionPoint( {
}

setIsInserterShown( true );
setInserterElement( element );
setInserterClientId( clientId );
}

function focusClosestTabbable( event ) {
const { clientX, clientY, target } = event;

// Only handle click on the wrapper specifically, and not an event
// bubbled from the inserter itself.
if ( target !== ref.current ) {
return;
}

const targetRect = target.getBoundingClientRect();
const isReverse = clientY < targetRect.top + targetRect.height / 2;
const blockNode = getBlockDOMNode( inserterClientId );
const container = isReverse ? containerRef.current : blockNode;
const closest =
getClosestTabbable( blockNode, true, container ) || blockNode;
const rect = new window.DOMRect( clientX, clientY, 0, 16 );

placeCaretAtVerticalEdge( closest, isReverse, rect, false );
}

// Hide the inserter above the selected block and during multi-selection.
const isInserterHidden = hasMultiSelection
? multiSelectedBlockClientIds.includes( inserterClientId )
: inserterClientId === selectedBlockClientId;
const isVisible = isInserterShown || isInserterForced || isInserterVisible;

return (
<>
{ ! isMultiSelecting && ( isInserterShown || isInserterForced ) && (
<Popover
noArrow
animate={ false }
anchorRef={ inserterElement }
position="top right left"
focusOnMount={ false }
className="block-editor-block-list__insertion-point-popover"
__unstableSlotName="block-toolbar"
>
<div
className="block-editor-block-list__insertion-point"
style={ { width: inserterElement.offsetWidth } }
>
<Indicator clientId={ inserterClientId } />
{ /* eslint-disable-next-line jsx-a11y/no-static-element-interactions, jsx-a11y/click-events-have-key-events */ }
<div
ref={ ref }
onFocus={ () => setIsInserterForced( true ) }
onBlur={ () => setIsInserterForced( false ) }
onClick={ focusClosestTabbable }
// While ideally it would be enough to capture the
// bubbling focus event from the Inserter, due to the
// characteristics of click focusing of `button`s in
// Firefox and Safari, it is not reliable.
//
// See: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#Clicking_and_focus
tabIndex={ -1 }
className={ classnames(
'block-editor-block-list__insertion-point-inserter',
{
'is-inserter-hidden': isInserterHidden,
}
) }
>
<Inserter
position="bottom center"
clientId={ inserterClientId }
__experimentalIsQuick
/>
</div>
</div>
</Popover>
{ ! isMultiSelecting && isVisible && (
<InsertionPointPopover
clientId={
isInserterVisible ? selectedClientId : inserterClientId
}
isInserterShown={ isInserterShown }
isInserterForced={ isInserterForced }
setIsInserterForced={ setIsInserterForced }
containerRef={ containerRef }
showInsertionPoint={ isInserterVisible }
/>
) }
<div
onMouseMove={
Expand Down
6 changes: 1 addition & 5 deletions packages/block-editor/src/components/block-list/root-container.js
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Original file line number Diff line number Diff line change
Expand Up @@ -79,11 +79,7 @@ function RootContainer( { children, className }, ref ) {
const [ blockNodes, setBlockNodes ] = useState( {} );

return (
<InsertionPoint
hasMultiSelection={ hasMultiSelection }
selectedBlockClientId={ selectedBlockClientId }
containerRef={ ref }
>
<InsertionPoint containerRef={ ref }>
<BlockNodes.Provider value={ blockNodes }>
<BlockPopover />
<div
Expand Down
2 changes: 1 addition & 1 deletion packages/block-editor/src/components/block-list/style.scss
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Original file line number Diff line number Diff line change
Expand Up @@ -391,7 +391,7 @@

// Hide the inserter above the selected block.
&.is-inserter-hidden .block-editor-inserter__toggle {
opacity: 0;
visibility: hidden;
pointer-events: none;
}
}
Expand Down