v0.1.0-next

v0.1.0 — prerelease

The first draft of the widget library: a model-update-view loop, a renderable node tree and two widgets.

Added

Flow

• Cmd — the attribute describing a side effect, with NoCmd for no work and BatchCmd for running several commands in sequence.
• Widget — the attribute pairing an update and a view function.
• Step — the result of an update: the next widget plus the command to run.
• View — the union of a nested widget and a node.

See Flow for the full reference.

Nodes

• Node — the attribute describing an element in the rendered tree.
• Text, Foreground and Background — the initial node types, with colors accepted as ColorLike from colors.

See Nodes for the full reference.

Widgets

• label — displays a fixed string and ignores every message.
• textinput — collects typed text, handling KeyPressMsg and SetValueMsg.

See Label and Text Input for the full reference.

Known issues

• label.new declares a Label return type but returns a Model; Label does not exist.
• textinput.view renders m.value in its empty branch, so placeholder is never drawn.
• textinput.view calls node.Foreground("grey", [node.Text(m.value)]) with two arguments and a String color, while Foreground takes a single ColorLike field. A source comment marks the color as pending a theme.
• Text, Foreground and Background carry @Tag rather than @Node, and Tag is not defined in this repository.
• label imports flow, textinput imports ui.flow, and both flow.Step and bare Step are used within a single function.
• Neither label nor textinput imports the node module they reference by prefix.