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Fix editor deletion selection and typecheck#695

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Open

Fix editor deletion selection and typecheck#695
RajPabnani03 wants to merge 3 commits into
athasdev:masterfrom
RajPabnani03:master

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@RajPabnani03 RajPabnani03 commented May 14, 2026

When deleting selected text via Backspace, Delete, or cut operations, some browser engines (especially WebKit) fail to properly collapse the DOM selection after the deletion. The editor's handleInput callback was reading the uncollapsed selection bounds and restoring them in React state, causing the selection to visually persist.

This also fixes a TypeScript target compatibility issue in editor font-family escaping by avoiding String.prototype.replaceAll, which is not available under the current project lib target.

Changes

  • src/features/editor/hooks/use-editor-textarea-input.ts: Detects deletion InputEvent types (deleteContentBackward, deleteContentForward, deleteWord*, deleteSoftLine*, deleteHardLine*, deleteByDrag, deleteByCut) and unconditionally clears the React selection state for those events, regardless of what the DOM reports.
  • src/features/editor/tests/use-editor-operations.test.ts: Adds unit tests for deleteSelection and cut operations to ensure the textarea selection is properly collapsed after removing selected text.
  • src/features/editor/utils/position.ts: Replaces replaceAll usage with regex-based replace so bun typecheck passes with the repository's TypeScript target.

Test Results

  • bun typecheck passes.
  • bunx vp check --fix src/features/editor/utils/position.ts passes.
  • bunx vp test run was attempted, but the current suite has unrelated import/timeout failures around editor buffer store tests in this local environment.

Fixes #645

Raj Pabnani added 2 commits May 14, 2026 13:56
Create a full team of 30 specialized droids for vibe coding on the
Athas project. Includes executive, frontend, backend, QA, security,
product teams, and cross-functional agents with clear role boundaries
and escalation paths.

Also adds reference docs:
- FACTORY_AI.md: Factory capabilities quick reference
- VIBE_CODING.md: Workflow patterns and quality gates
- COMPANY_ROSTER.md: Org chart and droid selection guide
When deleting selected text via Backspace, Delete, or cut operations,
some browser engines (especially WebKit) may fail to properly collapse
the DOM selection after the deletion. The handleInput callback was
reading the uncollapsed selection bounds and restoring them in React
state, causing the selection to visually persist.

This fix detects deletion input events (deleteContentBackward,
deleteContentForward, deleteWord*, deleteSoftLine*, deleteHardLine*,
deleteByDrag, deleteByCut) and unconditionally clears the React
selection state for those events, regardless of what the DOM reports.

Also adds unit tests for the deleteSelection and cut operations in
useEditorOperations to ensure the textarea selection is properly
collapsed after removing selected text.

Fixes athasdev#645
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Comment on lines +209 to +213
const isDeletion =
inputType === "deleteContentBackward" ||
inputType === "deleteContentForward" ||
inputType === "deleteWordBackward" ||
inputType === "deleteWordForward" ||
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P2 Badge Handle all deletion inputType variants when clearing selection

The new isDeletion whitelist is incomplete, so some legitimate deletion events still fall through the selectionStart !== selectionEnd branch and reapply a stale selection. For example, Input Events defines deletion types like deleteContent and deleteEntireSoftLine that are not covered here; if a browser emits one of those (especially in the same WebKit scenarios this patch targets), the editor will continue to preserve a non-collapsed selection instead of clearing it.

Useful? React with 👍 / 👎.

Comment on lines +34 to +37
// useEditorOperations only uses useCallback wrappers; the core logic
// is synchronous and can be exercised by calling the returned functions
// directly if we bypass React. We reconstruct the callback behavior
// inline for testing.
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P2 Badge Test the real hook instead of duplicating its implementation

This test suite does not import or execute useEditorOperations; it recreates deleteSelection/cut logic inline and asserts against that copy. Because of this, regressions in the actual hook can still pass these tests, so the new coverage gives false confidence and may miss the production bug it is intended to guard against.

Useful? React with 👍 / 👎.

@RajPabnani03 RajPabnani03 changed the title Fix persistent selection after deletion in editor Fix editor deletion selection and typecheck May 17, 2026
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Persistent selection

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