Basic hat support. (#20)

Reviewed-on: #20
Co-authored-by: Anna Rose Wiggins <annabunches@gmail.com>
Co-committed-by: Anna Rose Wiggins <annabunches@gmail.com>

internal/configparser/ruleconfig.go

@@ -54,6 +54,10 @@ func (dc *RuleConfig) UnmarshalYAML(unmarshal func(data interface{}) error) erro
 		config := RuleConfigModeSelect{}
 		err = unmarshal(&config)
 		dc.Config = config
+	case RuleTypeHat:
+		config := RuleConfigHat{}
+		err = unmarshal(&config)
+		dc.Config = config
 	}
 
 	return err

internal/configparser/ruletarget.go

@@ -31,3 +31,9 @@ type RuleTargetConfigRelaxis struct {
 type RuleTargetConfigModeSelect struct {
 	Modes []string
 }
+
+type RuleTargetConfigHat struct {
+	Device   string
+	Hat      string
+	Inverted bool
+}

internal/configparser/ruletype.go

@@ -18,6 +18,7 @@ const (
 	RuleTypeAxisToButton  RuleType = "axis-to-button"
 	RuleTypeAxisToRelaxis RuleType = "axis-to-relaxis"
 	RuleTypeModeSelect    RuleType = "mode-select"
+	RuleTypeHat           RuleType = "hat"
 )
 
 var (
@@ -30,6 +31,7 @@ var (
 		"axis-to-button":  RuleTypeAxisToButton,
 		"axis-to-relaxis": RuleTypeAxisToRelaxis,
 		"mode-select":     RuleTypeModeSelect,
+		"hat":             RuleTypeHat,
 	}
 )
 

internal/configparser/schema.go

@@ -40,6 +40,11 @@ type RuleConfigAxis struct {
 	Output RuleTargetConfigAxis
 }
 
+type RuleConfigHat struct {
+	Input  RuleTargetConfigHat
+	Output RuleTargetConfigHat
+}
+
 type RuleConfigAxisCombined struct {
 	InputLower RuleTargetConfigAxis `yaml:"input_lower,omitempty"`
 	InputUpper RuleTargetConfigAxis `yaml:"input_upper,omitempty"`