tcell-term: title: send tcell event on title change v1 PROPOSED

Tim Culverhouse: 1
 title: send tcell event on title change

 2 files changed, 58 insertions(+), 4 deletions(-)

[PATCH tcell-term] title: send tcell event on title change Export this patch

Send a tcell event when the title of the terminal changes

Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
---
 terminal.go          | 35 ++++++++++++++++++++++++++++++++---
 termutil/terminal.go | 27 ++++++++++++++++++++++++++-
 2 files changed, 58 insertions(+), 4 deletions(-)

diff --git a/terminal.go b/terminal.go
index 9e1245a27c73..c59cec1ef953 100644
--- a/terminal.go
+++ b/terminal.go
@@ -21,7 +21,7 @@ type Terminal struct {
 	curStyle tcell.CursorStyle
 	curVis   bool
 
-	view views.View
+	view     views.View
 	interval int
 
 	close bool
@@ -31,7 +31,7 @@ type Terminal struct {
 
 func New(opts ...Option) *Terminal {
 	t := &Terminal{
-		term: termutil.New(),
+		term:     termutil.New(),
 		interval: 8,
 	}
 	t.term.SetWindowManipulator(&windowManipulator{})
@@ -74,6 +74,7 @@ func (t *Terminal) RunWithAttrs(cmd *exec.Cmd, attr *syscall.SysProcAttr) error
 func (t *Terminal) run(cmd *exec.Cmd, attr *syscall.SysProcAttr) error {
 	w, h := t.view.Size()
 	tmr := time.NewTicker(time.Duration(t.interval) * time.Millisecond)
+	eventCh := make(chan tcell.Event)
 	go func() {
 		for {
 			select {
@@ -85,10 +86,20 @@ func (t *Terminal) run(cmd *exec.Cmd, attr *syscall.SysProcAttr) error {
 					t.PostEventWidgetContent(t)
 					t.term.SetRedraw(false)
 				}
+			case ev := <-eventCh:
+				switch ev := ev.(type) {
+				case *termutil.EventTitle:
+					t.PostEvent(&EventTitle{
+						widget: t,
+						when:   ev.When(),
+						title:  ev.Title(),
+					})
+				}
 			}
 		}
 	}()
-	err := t.term.Run(cmd, uint16(h), uint16(w), attr)
+
+	err := t.term.Run(cmd, uint16(h), uint16(w), attr, eventCh)
 	if err != nil {
 		return err
 	}
@@ -96,6 +107,24 @@ func (t *Terminal) run(cmd *exec.Cmd, attr *syscall.SysProcAttr) error {
 	return nil
 }
 
+type EventTitle struct {
+	when   time.Time
+	title  string
+	widget *Terminal
+}
+
+func (ev *EventTitle) When() time.Time {
+	return ev.when
+}
+
+func (ev *EventTitle) Widget() views.Widget {
+	return ev.widget
+}
+
+func (ev *EventTitle) Title() string {
+	return ev.title
+}
+
 func (t *Terminal) Close() {
 	t.close = true
 	t.term.Pty().Close()
diff --git a/termutil/terminal.go b/termutil/terminal.go
index 78ada1378973..92d846b85078 100644
--- a/termutil/terminal.go
+++ b/termutil/terminal.go
@@ -8,8 +8,10 @@ import (
 	"os"
 	"os/exec"
 	"syscall"
+	"time"
 
 	"github.com/creack/pty"
+	"github.com/gdamore/tcell/v2"
 	"golang.org/x/term"
 )
 
@@ -30,6 +32,7 @@ type Terminal struct {
 	mouseExtMode      MouseExtMode
 	theme             *Theme
 	redraw            bool
+	eventCh           chan tcell.Event
 }
 
 // NewTerminal creates a new terminal instance
@@ -116,9 +119,10 @@ func (t *Terminal) SetSize(rows, cols uint16) error {
 }
 
 // Run starts the terminal/shell proxying process
-func (t *Terminal) Run(c *exec.Cmd, rows uint16, cols uint16, attr *syscall.SysProcAttr) error {
+func (t *Terminal) Run(c *exec.Cmd, rows uint16, cols uint16, attr *syscall.SysProcAttr, eventCh chan tcell.Event) error {
 	c.Env = append(os.Environ(), "TERM=xterm-256color")
 
+	t.eventCh = eventCh
 	// Start the command with a pty.
 	var err error
 	// t.pty, err = pty.Start(c)
@@ -230,6 +234,7 @@ func (t *Terminal) translateRune(b MeasuredRune) MeasuredRune {
 }
 
 func (t *Terminal) setTitle(title string) {
+	t.eventCh <- newEventTitle(title)
 	t.windowManipulator.SetTitle(title)
 }
 
@@ -265,3 +270,23 @@ func (t *Terminal) useMainBuffer() {
 func (t *Terminal) useAltBuffer() {
 	t.switchBuffer(AltBuffer)
 }
+
+type EventTitle struct {
+	when  time.Time
+	title string
+}
+
+func (ev *EventTitle) When() time.Time {
+	return ev.when
+}
+
+func (ev *EventTitle) Title() string {
+	return ev.title
+}
+
+func newEventTitle(title string) tcell.Event {
+	return &EventTitle{
+		when:  time.Now(),
+		title: title,
+	}
+}
-- 
2.37.3