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fix: use mouse modifiers for editor drag and drop - #335428
Tiancheng Xu (Tiancheng-Xu) wants to merge 2 commits into
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🔵 Needs a closer look
It alters user-facing editor drag-and-drop interaction semantics (dropping immediate copy-cursor feedback on modifier keypress without mouse movement), a UX trade-off that warrants human sign-off.
Pull request overview
This PR simplifies the editor's drag-and-drop controller (DragAndDropController) to read the trigger modifier (Alt on macOS, Ctrl elsewhere) directly from the modifier flags carried by editor mouse events, instead of separately tracking keyboard keydown/keyup events and a cached mouse-down/modifier state. This implements the request in issue #58515 and removes now-redundant bookkeeping.
Changes:
- Narrows
hasTriggerModifierto accept onlyIMouseEventand removes the keyboardonKeyDown/onKeyUplisteners plus the_mouseDown,_modifierPressed, andTRIGGER_KEY_VALUEstate. - Simplifies the drop condition and
DragAndDropCommandcopy flag to depend only onhasTriggerModifier(mouseEvent.event). - Drops the now-unused
IKeyboardEvent,KeyCode, andEditorOptionimports and the associated cleanup lines in blur/drop/dispose paths.
File summaries
| File | Description |
|---|---|
| src/vs/editor/contrib/dnd/browser/dnd.ts | Uses mouse-event modifier flags for DnD copy behavior and removes keyboard listeners and cached mouse/modifier state. |
Review details
- Files reviewed: 1/1 changed files
- Comments generated: 0
- Review effort level: Balanced
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Subject:Re: [microsoft/vscode] fix: use mouse modifiers for editor drag and drop (PR #335428)
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Thanks for the review. This PR intentionally removes the keyboard-state bookkeeping requested by #58515 and reads the trigger modifier from the editor mouse events. The copy semantics at mouse drag/drop remain driven by the event modifier; the only intentional UX change is that the cursor no longer reacts immediately to a modifier keypress without mouse movement. I'll leave this open for maintainer UX sign-off. |
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Following up on the UX trade-off I noted above. I see #324285 is still open and preserves the keyboard handlers for immediate cursor feedback, while this PR removes them. Would you prefer that I revise this PR to retain that feedback, or is the current behavior acceptable? I’ll leave the implementation unchanged until I have your guidance. I also see the required workflow checks are awaiting maintainer approval. |
Fixes #58515
Summary
Validation
git diff --checkAI assistance was used to inspect the issue and prepare this focused change; the final diff and validation statement were manually checked.