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switchterm.go
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switchterm.go
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// Copyright 2019-2022 Graham Clark. All rights reserved. Use of this source
// code is governed by the MIT license that can be found in the LICENSE
// file.
// Package ui contains user-interface functions and helpers for termshark.
package ui
import (
"fmt"
"os"
"time"
"github.com/gcla/gowid"
"github.com/gcla/gowid/widgets/dialog"
"github.com/gcla/gowid/widgets/framed"
"github.com/gcla/gowid/widgets/holder"
"github.com/gcla/gowid/widgets/paragraph"
"github.com/gcla/termshark/v2"
"github.com/gcla/termshark/v2/configs/profiles"
)
//======================================================================
// SuggestSwitchingTerm will open a dialog asking the user if they would like to try
// a more colorful TERM setting.
func SuggestSwitchingTerm(app gowid.IApp) {
var switchTerm *dialog.Widget
Yes := dialog.Button{
Msg: "Yes",
Action: gowid.MakeWidgetCallback("exec", gowid.WidgetChangedFunction(func(app gowid.IApp, w gowid.IWidget) {
termshark.ShouldSwitchTerminal = true
switchTerm.Close(app)
RequestQuit()
})),
}
No := dialog.Button{
Msg: "No",
}
NoAsk := dialog.Button{
Msg: "No, don't ask",
Action: gowid.MakeWidgetCallback("exec", gowid.WidgetChangedFunction(func(app gowid.IApp, w gowid.IWidget) {
profiles.SetConf("main.disable-term-helper", true)
switchTerm.Close(app)
})),
}
term := os.Getenv("TERM")
term256 := term + "-256color"
switchTerm = dialog.New(
framed.NewSpace(paragraph.New(fmt.Sprintf("Termshark is running with TERM=%s. The terminal database contains %s. Would you like to switch for a more colorful experience? Termshark will need to restart.", term, term256))),
dialog.Options{
Buttons: []dialog.Button{Yes, No, NoAsk},
NoShadow: true,
BackgroundStyle: gowid.MakePaletteRef("dialog"),
BorderStyle: gowid.MakePaletteRef("dialog"),
ButtonStyle: gowid.MakePaletteRef("dialog-button"),
Modal: true,
FocusOnWidget: false,
},
)
switchTerm.Open(appView, gowid.RenderWithRatio{R: 0.5}, app)
}
//======================================================================
// IsTerminalLegible will open up a dialog asking the user to confirm that their
// running termshark is legible, having upgraded the TERM variable to a 256-color
// version and restarted.
func IsTerminalLegible(app gowid.IApp) {
var saveTerm *dialog.Widget
YesSave := dialog.Button{
Msg: "Yes",
Action: gowid.MakeWidgetCallback("exec", gowid.WidgetChangedFunction(func(app gowid.IApp, w gowid.IWidget) {
profiles.SetConf("main.term", os.Getenv("TERM"))
saveTerm.Close(app)
})),
}
NoSave := dialog.Button{
Msg: "No",
}
saveTerm = dialog.New(
framed.NewSpace(paragraph.New(fmt.Sprintf("Do you want to save TERM=%s in termshark's config to use as the default?", os.Getenv("TERM")))),
dialog.Options{
Buttons: []dialog.Button{YesSave, NoSave},
NoShadow: true,
BackgroundStyle: gowid.MakePaletteRef("dialog"),
BorderStyle: gowid.MakePaletteRef("dialog"),
ButtonStyle: gowid.MakePaletteRef("dialog-button"),
Modal: true,
FocusOnWidget: false,
},
)
tick := time.NewTicker(time.Duration(1) * time.Second)
stopC := make(chan struct{})
var legibleTerm *dialog.Widget
No := dialog.Button{
Msg: "No",
Action: gowid.MakeWidgetCallback("exec", gowid.WidgetChangedFunction(func(app gowid.IApp, w gowid.IWidget) {
close(stopC)
termshark.ShouldSwitchBack = true
legibleTerm.Close(app)
RequestQuit()
})),
}
Yes := dialog.Button{
Msg: "Yes",
Action: gowid.MakeWidgetCallback("exec", gowid.WidgetChangedFunction(func(app gowid.IApp, w gowid.IWidget) {
close(stopC)
legibleTerm.Close(app)
saveTerm.Open(appView, gowid.RenderWithRatio{R: 0.5}, app)
})),
}
secs := 10
tw := func(count int) *paragraph.Widget {
return paragraph.New(fmt.Sprintf("Is the terminal legible? If no selection is made, termshark will revert to its original TERM setting in %d seconds.", secs))
}
message := holder.New(tw(secs))
termshark.TrackedGo(func() {
Loop:
for {
select {
case <-tick.C:
secs--
switch {
case secs >= 0:
app.Run(gowid.RunFunction(func(app gowid.IApp) {
message.SetSubWidget(tw(secs), app)
}))
case secs < 0:
tick.Stop()
close(stopC)
app.Run(gowid.RunFunction(func(app gowid.IApp) {
termshark.ShouldSwitchBack = true
legibleTerm.Close(app)
RequestQuit()
}))
}
case <-stopC:
break Loop
}
}
}, Goroutinewg)
legibleTerm = dialog.New(
framed.NewSpace(message),
dialog.Options{
Buttons: []dialog.Button{Yes, No},
NoShadow: true,
BackgroundStyle: gowid.MakePaletteRef("dialog"),
BorderStyle: gowid.MakePaletteRef("dialog"),
ButtonStyle: gowid.MakePaletteRef("dialog-button"),
Modal: true,
FocusOnWidget: false,
StartIdx: 1,
},
)
legibleTerm.Open(appView, gowid.RenderWithRatio{R: 0.5}, app)
}
//======================================================================
// Local Variables:
// mode: Go
// fill-column: 110
// End: