1 files changed, 201 insertions(+), 0 deletions(-)

A example/show_keys.go

@@ 0,0 1,201 @@
+//go:build ignore
+// +build ignore
+
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+
+	tcellterm "git.sr.ht/~rockorager/tcell-term"
+	"github.com/gdamore/tcell/v2"
+	"github.com/gdamore/tcell/v2/views"
+)
+
+type model struct {
+	term       *tcellterm.VT
+	s          tcell.Screen
+	termView   views.View
+	title      *views.TextBar
+	titleStyle tcell.Style
+	titleView  views.View
+
+	keyClear *time.Timer
+	keys     string
+}
+
+// Update is the main event handler. It should only be called by the main thread
+func (m *model) Update(ev tcell.Event) {
+	switch ev := ev.(type) {
+	case *tcell.EventKey:
+		switch ev.Key() {
+		case tcell.KeyCtrlC:
+			m.term.Close()
+			m.s.Fini()
+			return
+		}
+		m.keyClear.Stop()
+		m.keyClear = time.AfterFunc(1*time.Second, func() {
+			m.s.PostEvent(tcell.NewEventInterrupt(""))
+		})
+		if m.term != nil {
+			m.term.HandleEvent(ev)
+		}
+		m.keys += keyNames(ev)
+		m.title.SetCenter(m.keys, m.titleStyle)
+		m.term.Draw()
+		m.s.Show()
+	case *tcell.EventInterrupt:
+		m.keys = ""
+		m.title.SetLeft(m.keys, m.titleStyle)
+		m.s.Show()
+	case *tcell.EventResize:
+		_, h := ev.Size()
+		if m.term != nil {
+			m.termView.Resize(0, 0, -1, h-1)
+			m.term.Resize(m.termView.Size())
+		}
+		m.titleView.Resize(0, h-1, -1, 1)
+		m.title.Resize()
+		m.title.Draw()
+		m.term.Draw()
+		m.s.Sync()
+		return
+	case *tcellterm.EventRedraw:
+		m.term.Draw()
+		m.title.Draw()
+
+		row, col, style, vis := m.term.Cursor()
+		if vis {
+			m.s.SetCursorStyle(style)
+			m.s.ShowCursor(col, row)
+
+		} else {
+			m.s.HideCursor()
+		}
+		m.s.Show()
+		return
+	case *tcellterm.EventClosed:
+		m.s.Clear()
+		m.s.Fini()
+		return
+	case *tcell.EventPaste:
+		m.term.HandleEvent(ev)
+		return
+	case *tcell.EventMouse:
+		// Translate the coordinates to our global coordinates (y-2)
+		x, y := ev.Position()
+		if y-2 < 0 {
+			// Event is outside our view
+			return
+		}
+		e := tcell.NewEventMouse(x, y, ev.Buttons(), ev.Modifiers())
+		m.term.HandleEvent(e)
+		return
+	case *tcellterm.EventMouseMode:
+		m.s.EnableMouse(ev.Flags()...)
+	case *tcellterm.EventPanic:
+		m.s.Clear()
+		m.s.Fini()
+		fmt.Println(ev.Error)
+	}
+	return
+}
+
+// HandleEvent is used to handle events from underlying widgets. Any events
+// which redraw must be executed in the main goroutine by posting the event back
+// to tcell
+func (m *model) HandleEvent(ev tcell.Event) {
+	m.s.PostEvent(ev)
+}
+
+func main() {
+	f, _ := os.Create("recording.log")
+	log.SetOutput(f)
+	var err error
+	m := &model{}
+	m.s, err = tcell.NewScreen()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "%v\n", err)
+		os.Exit(1)
+	}
+	if err = m.s.Init(); err != nil {
+		fmt.Fprintf(os.Stderr, "%v\n", err)
+		os.Exit(1)
+	}
+	m.s.EnablePaste()
+	m.keyClear = time.NewTimer(0)
+
+	m.title = views.NewTextBar()
+	m.title.SetStyle(tcell.StyleDefault.Reverse(true))
+
+	_, h := m.s.Size()
+	fmt.Print(h)
+	m.titleView = views.NewViewPort(m.s, 0, h-1, -1, 1)
+	m.title.SetView(m.titleView)
+
+	m.termView = views.NewViewPort(m.s, 0, 0, -1, h-1)
+	m.term = tcellterm.New()
+	m.term.SetSurface(m.termView)
+	m.term.Attach(m.HandleEvent)
+	m.term.Logger = log.New(f, "", log.Flags())
+	m.s.EnableMouse()
+
+	cmd := exec.Command(os.Getenv("SHELL"))
+	err = m.term.Start(cmd)
+	if err != nil {
+		panic(err)
+	}
+	for {
+		ev := m.s.PollEvent()
+		if ev == nil {
+			break
+		}
+		m.Update(ev)
+	}
+}
+
+func keyNames(ev *tcell.EventKey) string {
+	s := ""
+	m := []string{}
+	if ev.Modifiers()&tcell.ModShift != 0 {
+		m = append(m, "Shift")
+	}
+	if ev.Modifiers()&tcell.ModAlt != 0 {
+		m = append(m, "Alt")
+	}
+	if ev.Modifiers()&tcell.ModMeta != 0 {
+		m = append(m, "Meta")
+	}
+	if ev.Modifiers()&tcell.ModCtrl != 0 {
+		m = append(m, "Ctrl")
+	}
+
+	ok := false
+	if s, ok = tcell.KeyNames[ev.Key()]; !ok {
+		if ev.Key() == tcell.KeyRune {
+			switch ev.Rune() {
+			case ' ':
+				s = "Space+"
+			default:
+				s = string(ev.Rune())
+			}
+		} else {
+			s = fmt.Sprintf("Key[%d,%d]", ev.Key(), int(ev.Rune()))
+		}
+	}
+	if ok {
+		s += "+"
+	}
+	if len(m) != 0 {
+		if ev.Modifiers()&tcell.ModCtrl != 0 && strings.HasPrefix(s, "Ctrl-") {
+			s = s[5:]
+		}
+		return fmt.Sprintf("%s+%s", strings.Join(m, "+"), s)
+	}
+	return s
+}