2021-12-17 23:26:00 +00:00
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version 1 .
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; Data types
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WidgetTree =
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2021-12-22 01:07:20 +00:00
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/ <node @type NodeType @attributes WidgetAttributes @children [WidgetTree ...]>
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2021-12-17 23:26:00 +00:00
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/ <leaf @type LeafType @attributes WidgetAttributes>
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.
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2021-12-22 01:07:20 +00:00
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NodeType = =column / =row .
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2021-12-17 23:26:00 +00:00
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WidgetAttributes = { symbol: any ...:... } .
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LeafType =
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2021-12-23 09:37:10 +00:00
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/ =blank
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/ =text
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/ =slider
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2021-12-17 23:26:00 +00:00
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.
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WidgetSelector =
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/ @attributeEquals <= @key symbol @value any>
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/ <and @selectors [WidgetSelector ...]>
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.
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Fill = @fixed double / <fill @weight int @rank int> .
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Sizing = <sizing @ideal double @stretch Fill @shrink Fill> .
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BoxSize = <box-size @horizontal Sizing @vertical Sizing> .
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; Commonly set under key `id` in WidgetAttributes.
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WidgetId = any .
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Color = <rgba @red double @green double @blue double @alpha double> .
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WidgetClientProtocol = WidgetInstance .
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; Assertion
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ShowWidget = <show
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@positions WidgetSelector
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@widget WidgetTree
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@order Ordering
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@client #!WidgetClientProtocol > .
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Ordering = @double double / @string string .
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; Assertion
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WidgetInstance = <widget-instance @server #!any> .
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; Assertion
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Touch = <touch @widget WidgetId @touchId any> .
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; Message
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Click = <click @widget WidgetId> .
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; Assertion
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State = <state @widget WidgetId @key any @value any> .
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