package mappingrules import "github.com/holoplot/go-evdev" // A Combo Mapping Rule can require multiple physical button presses for a single output button type MappingRuleButtonCombo struct { MappingRuleBase Inputs []*RuleTargetButton Output *RuleTargetButton State int } func NewMappingRuleButtonCombo( base MappingRuleBase, inputs []*RuleTargetButton, output *RuleTargetButton) *MappingRuleButtonCombo { return &MappingRuleButtonCombo{ MappingRuleBase: base, Inputs: inputs, Output: output, State: 0, } } func (rule *MappingRuleButtonCombo) MatchEvent(device *evdev.InputDevice, event *evdev.InputEvent, mode *string) (*evdev.InputDevice, *evdev.InputEvent) { if !rule.MappingRuleBase.modeCheck(mode) { return nil, nil } // Check each of the inputs, and if we find a match, proceed var match *RuleTargetButton for _, input := range rule.Inputs { if input.MatchEvent(device, event) { match = input break } } if match == nil { return nil, nil } // Get the value and add/subtract it from State inputValue := match.NormalizeValue(event.Value) oldState := rule.State if inputValue == 0 { rule.State = max(rule.State-1, 0) } if inputValue == 1 { rule.State++ } targetState := len(rule.Inputs) if oldState == targetState-1 && rule.State == targetState { return rule.Output.Device, rule.Output.CreateEvent(1, mode) } if oldState == targetState && rule.State == targetState-1 { return rule.Output.Device, rule.Output.CreateEvent(0, mode) } return nil, nil }