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30 lines
1.2 KiB
Markdown
30 lines
1.2 KiB
Markdown
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# Scroll Wheel Support for Window Cycle (Alt+Tab)
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## Summary
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Add mouse scroll wheel support to the Alt+Tab window switcher. When cycle mode is active (Alt+Tab held), scrolling the mouse wheel cycles through windows — scroll down for next, scroll up for previous.
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## Usage
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1. Press and hold **Alt+Tab** to enter cycle mode
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2. **Scroll wheel down** → cycle to the next window
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3. **Scroll wheel up** → cycle to the previous window
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4. Release **Alt** to focus the selected window
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No configuration needed — this behavior is always active during cycle mode.
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## Technical Details
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The patch intercepts `WL_POINTER_AXIS_VERTICAL_SCROLL` events in `handle_axis()` when `server.input_mode == LAB_INPUT_STATE_CYCLE`. It maps:
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- Negative delta (scroll up) → `LAB_CYCLE_DIR_BACKWARD`
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- Positive delta (scroll down) → `LAB_CYCLE_DIR_FORWARD`
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These are the same direction constants used by the keyboard handler (`handle_cycle_view_key()` in `keyboard.c`), ensuring consistent behavior between keyboard and mouse navigation.
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The event is consumed (not forwarded to clients or processed as mouse bindings) when cycle mode is active.
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## Files Changed
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- `src/input/cursor.c` — Added scroll wheel interception in `handle_axis()`
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