Fix applyDelta with block embed #3777
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luin
commented
May 20, 2023
| @@ -30,17 +30,17 @@ class Editor { | |||
| normalizedDelta.reduce((index, op) => { | |||
| const length = Op.length(op); | |||
| let attributes = op.attributes || {}; | |||
| let addedNewline = false; | |||
| let isImplicitNewlinePrepended = false; | |||
| let isImplicitNewlineAppended = false; | |||
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note: renamed from addedNewline
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jhchen
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May 31, 2023
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Closes #3620
There are two cases where an implicit newline char (
\n) could be added:\n) or right before a block embed, an implicit\nwill be appended to that op.\n, an implicit\nwill be prepended to the op.Before this PR, we only tracked the first case with a flag
addedNewline. When it's true, we increase the index by 1 and record it indeleteDeltato delete it. The reason we want to delete it instead of skipping it is that a following op may contain a\n, which makes the implicit\nredundant.However, we didn't catch the second case which led to #3620. This PR added another flag
isImplicitNewlinePrependedfor that case. Instead of deleting the implicit\n, we will just skip it because we know for sure the implicit\nis needed.