Added some type safety to Step

attribute/generated.go

@@ -763,14 +763,6 @@ func Start(value string) hatmill.Attrib {
 	}
 }
 
-// Step creates a "step" attribute
-func Step(value string) hatmill.Attrib {
-	return hatmill.Attrib{
-		Key:   "step",
-		Value: value,
-	}
-}
-
 // Style creates a "style" attribute
 func Style(value string) hatmill.Attrib {
 	return hatmill.Attrib{

attribute/step.go

@@ -0,0 +1,25 @@
+package attribute
+
+import "strconv"
+import "gitlab.codemonkeysoftware.net/b/hatmill"
+
+type StepValue *float32
+
+func StepAny() StepValue {
+	return nil
+}
+
+func StepFloat(value float32) StepValue {
+	return &value
+}
+
+// Step indicates the minimum allowed change to a number input.
+func Step(value StepValue) hatmill.Attrib {
+	var attr = hatmill.Attrib{Key: "step"}
+	if value == nil {
+		attr.Value = "any"
+	} else {
+		attr.Value = strconv.FormatFloat(float64(*value), 'G', -1, 32)
+	}
+	return attr
+}

attribute/step_test.go

@@ -0,0 +1,18 @@
+package attribute_test
+
+import (
+	"gitlab.codemonkeysoftware.net/b/hatmill/attribute"
+	"gitlab.codemonkeysoftware.net/b/hatmill/element"
+	"os"
+)
+
+func ExampleStep() {
+	s1 := attribute.Step(attribute.StepAny())
+	s2 := attribute.Step(attribute.StepFloat(0.5))
+	e := element.Div()(
+		element.Input(s1),
+		element.Input(s2),
+	)
+	e.WriteTo(os.Stdout)
+	// Output: <div><input step='any'><input step='0.5'></div>
+}

defs.json

@@ -97,7 +97,6 @@
     {"name": "srclang", "type": "string"},
     {"name": "srcset", "type": "string"},
     {"name": "start", "type": "string"},
-    {"name": "step", "type": "string"},
     {"name": "style", "type": "string"},
     {"name": "summary", "type": "string"},
     {"name": "tabindex", "type": "int"},