54 lines
1.5 KiB
Go
54 lines
1.5 KiB
Go
package mappingrules
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import (
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"time"
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"github.com/holoplot/go-evdev"
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)
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// TODO: How are we going to implement this? It needs to operate on a timer...
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type MappingRuleProportionalAxis struct {
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MappingRuleBase
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Input *RuleTargetAxis
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Output *RuleTargetButton
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Sensitivity int32
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LastValue int32
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LastEvent time.Time
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}
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func (rule *MappingRuleProportionalAxis) MatchEvent(device *evdev.InputDevice, event *evdev.InputEvent, mode *string) (*evdev.InputDevice, *evdev.InputEvent) {
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if !rule.MappingRuleBase.modeCheck(mode) {
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return nil, nil
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}
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if device != rule.Input.GetDevice() ||
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event.Code != rule.Input.GetCode() {
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return nil, nil
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}
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// set the last value to the normalized input value
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rule.LastValue = rule.Input.NormalizeValue(event.Value)
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return nil, nil
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}
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// TimerEvent returns an event when enough time has passed (compared to the last recorded axis value)
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// to emit an event.
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func (rule *MappingRuleProportionalAxis) TimerEvent() *evdev.InputEvent {
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// This is tighter coupling than we'd like, but it will do for now.
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// TODO: maybe it would be better to just be more declarative about event types and their inputs and outputs.
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if rule.LastValue < rule.Input.AxisStart {
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rule.LastEvent = time.Now()
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return nil
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}
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// calculate target time until next event press
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// nextEvent := rule.LastEvent + (rule.LastValue)
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// TODO: figure out what the condition should be
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if false {
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// TODO: emit event
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rule.LastEvent = time.Now()
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}
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return nil
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}
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