sampler-fork/event/handler.go

package event

import (
	"github.com/sqshq/sampler/widgets"
	ui "github.com/sqshq/termui"
	"time"
)

type Handler struct {
	Layout        *widgets.Layout
	RenderEvents  <-chan time.Time
	ConsoleEvents <-chan ui.Event
}

func (self *Handler) HandleEvents() {

	pause := false

	for {
		select {
		case <-self.RenderEvents:
			if !pause {
				ui.Render(self.Layout)
			}
		case e := <-self.ConsoleEvents:
			switch e.ID {
			case EventQuit, EventExit:
				return
			case EventPause:
				pause = !pause
			case EventResize:
				payload := e.Payload.(ui.Resize)
				self.Layout.ChangeDimensions(payload.Width, payload.Height)
			case EventMouseClick:
				payload := e.Payload.(ui.Mouse)
				self.handleMouseClick(payload.X, payload.Y)
			case EventKeyboardLeft:
				// here we are going to move selection (special type of layout item)
				//layout.GetItem("").Move(-1, 0)
			case EventKeyboardRight:
				//layout.GetItem(0).Move(1, 0)
			case EventKeyboardDown:
				//layout.GetItem(0).Move(0, 1)
			case EventKeyboardUp:
				//layout.GetItem(0).Move(0, -1)
			}
		}
	}
}

func (self *Handler) handleMouseClick(x, y int) {
	for _, chart := range self.Layout.GetComponents(widgets.TypeRunChart) {
		runChart := chart.(*widgets.RunChart)
		runChart.SelectPoint(x, y)
	}
}