Module input_bar 

Single-line text-input widget for the command line + omnibar.

Phase 3 chrome: a 28-px-tall strip docked to the top of the window, drawn with a softbuffer-style &mut [u32] blit. Same protocol as the statusline at the bottom of the window — caller owns surface lifecycle, we just paint pixels.

Layout

+---------------------------------------------------+
| : | open https://example.com                     | <- input row (28px)
+---------------------------------------------------+
| open  open <url>                                  | <- suggestion 1 (24px)
| back  history back                                | <- suggestion 2 (24px)
| …                                                 |
+---------------------------------------------------+

Cursor blink

The widget exposes a InputBar::cursor_visible flag and the caller is expected to flip it on a 500ms timer. We stay clock-free so unit tests stay deterministic.

Glyph coverage

The system font covers full Unicode; ASCII URLs work out of the box. A bitmap fallback activates when no suitable system font is found.

Structs

InputBar

Single-line text input + dropdown.

Palette

Colour palette for the input bar. Mirrors the statusline palette shape so a future theme system can wire both at once.

Suggestion

One suggestion row. display is what’s shown to the user; value is what gets substituted into the buffer when the user confirms a selection (Enter or Tab).

Enums

SuggestionKind

What kind of suggestion is being rendered. Drives both the badge colour and the relative ordering (history < bookmark < command < search-engine fallback in the omnibar).

Constants

INPUT_HEIGHT

Input strip height in pixels. Slightly taller than the statusline so it reads as a separate UI affordance — and so the glyph row has room for a 1-px focus border above and below.

MAX_SUGGESTIONS

Maximum suggestions rendered. Past this, callers should truncate their result set to avoid spilling off-screen.

SUGGESTION_ROW_HEIGHT

Suggestion row height. Matches the statusline so a stack of rows reads as one cohesive overlay.