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