fix: reroute file drop to Gutenberg dropzone

[Arukuen]

fixes #51

Summary by CodeRabbit

Release Notes

• New Features
  • Enhanced file drop functionality in the block editor—files can now be dropped onto additional UI controls and media management areas with improved drop zone detection.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 77859a7f-dd6f-4bcb-9d70-8613d6570f93

📥 Commits

Reviewing files that changed from the base of the PR and between bd5f11d and 14871a6.

📒 Files selected for processing (1)

• src/admin/js/media-manager/drop-zone.js

📝 Walkthrough

Walkthrough

Drop-zone file handling is enhanced to support additional block-editor UI controls and improve drop-event targeting. Three complementary changes extend where files can be dropped, refine which element receives the dispatched event, and broaden drop-zone validation to recognize custom data attributes.

Changes

Drop Zone File Targeting

Layer / File(s)	Summary
Drop zone location and target dispatch src/admin/js/media-manager/drop-zone.js	ALLOWED_LOCATIONS filter extended to .block-library-utils__media-control. Drop handler target now prefers the nearest components-drop-zone or data-is-drop-zone="true" element instead of always event.target. Drop-zone validation expanded to recognize data-is-drop-zone attribute alongside existing component and content-editor patterns.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~7 minutes

Possibly related PRs

• gambitph/Cimo#32: Both PRs update src/admin/js/media-manager/drop-zone.js's drop-handling logic to fix file drops not converting—one broadens accepted drop-zone targeting/conditions, while the other guards against a null .closest('.supports-drag-drop') to prevent a runtime error.

Poem

🐰 A file drops down from the sky so bright,
Now finds its zone with targeting just right—
Data attributes bloom, new controls align,
The media manager's drop zones now refine! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'fix: reroute file drop to Gutenberg dropzone' directly describes the main change—rerouting file drops to the Gutenberg dropzone component.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/editor-dropzone

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[github-actions]

🤖 Pull request artifacts

file	commit
pr50-cimo-50-merge.zip	14871a6

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@src/admin/js/media-manager/drop-zone.js`:
- Line 158: The conditional at target?.hasAttribute('data-is-drop-zone') is
inconsistent with the earlier check that requires data-is-drop-zone==="true" and
can wrongly treat data-is-drop-zone="false" as true; update the condition in the
drop-zone detection (the combined if using target?.classList.contains and target
checks) to explicitly check the attribute value (e.g.,
target?.getAttribute('data-is-drop-zone') === 'true') instead of hasAttribute so
both branches use the same strict "true" match (referencing the same
target?.classList.contains('components-drop-zone') /
target?.getAttribute('data-is-drop-zone') === 'true' /
target?.classList.contains('uploader-editor-content') sequence).

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 421c43d2-fb71-4668-b831-5f6d15864410

📥 Commits

Reviewing files that changed from the base of the PR and between a1406d4 and bd5f11d.

📒 Files selected for processing (1)

• src/admin/js/media-manager/drop-zone.js