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Writing flow: preserve block when merging into empty paragraph #55134

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merged 7 commits into from
Oct 9, 2023
Merged

Writing flow: preserve block when merging into empty paragraph #55134

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f0280d7
Writing flow: preserve block when merging into empty paragraph
ellatrix Oct 6, 2023
fb3a459
Fix double delete
ellatrix Oct 6, 2023
f4d0b7d
Add remove fallback for merge
ellatrix Oct 6, 2023
3264a59
Fix deleting paragraph after block
ellatrix Oct 6, 2023
3c8e1f7
Fix order
ellatrix Oct 9, 2023
12c441f
Fix deleting paragraph after non mergeable block
ellatrix Oct 9, 2023
1171b18
Handle ! blockAType.merge
ellatrix Oct 9, 2023
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2 changes: 2 additions & 0 deletions packages/block-editor/src/components/block-list/block.js
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Original file line number Diff line number Diff line change
Expand Up @@ -494,6 +494,8 @@ const applyWithDispatch = withDispatch( ( dispatch, ownProps, registry ) => {
}

moveFirstItemUp( rootClientId );
} else {
removeBlock( clientId );
}
}
},
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2 changes: 1 addition & 1 deletion packages/block-editor/src/components/rich-text/use-delete.js
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Expand Up @@ -43,7 +43,7 @@ export function useDelete( props ) {
// an intentional user interaction distinguishing between Backspace and
// Delete to remove the empty field, but also to avoid merge & remove
// causing destruction of two fields (merge, then removed merged).
if ( onRemove && isEmpty( value ) && isReverse ) {
else if ( onRemove && isEmpty( value ) && isReverse ) {
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With this change in practice, this condition else if ( onRemove && isEmpty( value ) && isReverse ) {is never executed right ? We pass an onMerge on the block list so if ( onMerge ) { will always be truth, if that's the case would it make sense to remove the condition?

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Not all blocks may pass an onMerge function to RichText, they may only pass onRemove.

onRemove( ! isReverse );
}

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33 changes: 25 additions & 8 deletions packages/block-editor/src/store/actions.js
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Expand Up @@ -13,6 +13,7 @@ import {
switchToBlockType,
synchronizeBlocksWithTemplate,
getBlockSupport,
isUnmodifiedDefaultBlock,
} from '@wordpress/blocks';
import { speak } from '@wordpress/a11y';
import { __, _n, sprintf } from '@wordpress/i18n';
Expand Down Expand Up @@ -1013,17 +1014,12 @@ export const mergeBlocks =

if ( ! blockAType ) return;

const blockB = select.getBlock( clientIdB );

if (
! blockAType.merge &&
! getBlockSupport( blockA.name, '__experimentalOnMerge' )
getBlockSupport( blockA.name, '__experimentalOnMerge' )
) {
dispatch.selectBlock( blockA.clientId );
return;
}

const blockB = select.getBlock( clientIdB );

if ( ! blockAType.merge ) {
// If there's no merge function defined, attempt merging inner
// blocks.
const blocksWithTheSameType = switchToBlockType(
Expand Down Expand Up @@ -1090,6 +1086,27 @@ export const mergeBlocks =
return;
}

if ( isUnmodifiedDefaultBlock( blockA ) ) {
dispatch.removeBlock(
clientIdA,
select.isBlockSelected( clientIdA )
);
return;
}

if ( isUnmodifiedDefaultBlock( blockB ) ) {
dispatch.removeBlock(
clientIdB,
select.isBlockSelected( clientIdB )
);
return;
}

if ( ! blockAType.merge ) {
dispatch.selectBlock( blockA.clientId );
return;
}

const blockBType = getBlockType( blockB.name );
const { clientId, attributeKey, offset } = select.getSelectionStart();
const selectedBlockType =
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