feat: support OSC 52 (#32)

* feat: support OSC 52

* docs: note for OSC 52

README.md

@@ -64,6 +64,8 @@ For RedHat-based Linux, you need `alsa-lib-devel`.
 
 [`wl-clipboard`](https://github.com/bugaevc/wl-clipboard) (optional) - for Linux/Wayland to copy text.
 
+Or, if your terminal supports OSC 52, you can enable OSC 52 in page 2 of the pop out menu to copy text.
+
 ### Arch Linux ([AUR](https://aur.archlinux.org/packages/gtt-bin))
 
 ```sh
@@ -120,7 +122,7 @@ docker run -it eeexun/gtt:latest
 Exit program.
 
 `<Esc>`
-Toggle pop out window.
+Toggle pop out menu.
 
 `<C-j>`
 Translate from source to destination window.
@@ -159,7 +161,7 @@ Toggle Definition/Example & Part of speech.
 Cycle through the pop out widget.
 
 `<1>`, `<2>`, `<3>`
-Switch pop out window.
+Switch pop out menu.
 
 ### Customize key map
 

config.go

@@ -37,6 +37,7 @@ func configInit() {
 			"toggle_below":       "C-\\",
 		}
 		defaultConfig = map[string]interface{}{
+			"osc52":                         false,
 			"hide_below":                    false,
 			"transparent":                   false,
 			"theme":                         "gruvbox",
@@ -153,6 +154,7 @@ func configInit() {
 	}
 	translator = translators[config.GetString("translator")]
 	uiStyle.Theme = config.GetString("theme")
+	uiStyle.OSC52 = config.GetBool("osc52")
 	uiStyle.HideBelow = config.GetBool("hide_below")
 	uiStyle.Transparent = config.GetBool("transparent")
 	uiStyle.SetSrcBorderColor(config.GetString("source.border_color")).
@@ -211,10 +213,6 @@ func updateConfig() {
 		changed = true
 		config.Set("translator", translator.GetEngineName())
 	}
-	if config.GetBool("hide_below") != uiStyle.HideBelow {
-		changed = true
-		config.Set("hide_below", uiStyle.HideBelow)
-	}
 	if config.GetString("theme") != uiStyle.Theme {
 		changed = true
 		config.Set("theme", uiStyle.Theme)
@@ -223,6 +221,14 @@ func updateConfig() {
 		changed = true
 		config.Set("transparent", uiStyle.Transparent)
 	}
+	if config.GetBool("hide_below") != uiStyle.HideBelow {
+		changed = true
+		config.Set("hide_below", uiStyle.HideBelow)
+	}
+	if config.GetBool("osc52") != uiStyle.OSC52 {
+		changed = true
+		config.Set("osc52", uiStyle.OSC52)
+	}
 	if config.GetString("source.border_color") != uiStyle.SrcBorderStr() {
 		changed = true
 		config.Set("source.border_color", uiStyle.SrcBorderStr())

internal/style/style.go

@@ -5,6 +5,7 @@ import (
 )
 
 type style struct {
+	OSC52           bool
 	HideBelow       bool
 	Transparent     bool
 	Theme           string

main.go

@@ -35,12 +35,14 @@ var (
 	themeDropDown       = tview.NewDropDown()
 	transparentDropDown = tview.NewDropDown()
 	hideBelowDropDown   = tview.NewDropDown()
+	osc52DropDown       = tview.NewDropDown()
 	srcBorderDropDown   = tview.NewDropDown()
 	dstBorderDropDown   = tview.NewDropDown()
 	styleCycle          = ui.NewUICycle(
 		themeDropDown,
 		transparentDropDown,
 		hideBelowDropDown,
+		osc52DropDown,
 		srcBorderDropDown,
 		dstBorderDropDown)
 	keyMapMenu           = tview.NewTextView()

ui.go

@@ -18,12 +18,12 @@ type Item struct {
 }
 
 const (
-	popOutWindowHeight int    = 20
+	popOutMenuHeight int    = 20
 	langStrMaxLength   int    = 32
 	keyMapText         string = `[#%[1]s]<C-c>[-]
 	Exit program.
 [#%[1]s]<Esc>[-]
-	Toggle pop out window.
+	Toggle pop out menu.
 [#%[1]s]<%[2]s>[-]
 	Translate from source to destination window.
 [#%[1]s]<%[3]s>[-]
@@ -49,7 +49,7 @@ const (
 [#%[1]s]<Tab>, <S-Tab>[-]
 	Cycle through the pop out widget.
 [#%[1]s]<1>, <2>, <3>[-]
-	Switch pop out window.`
+	Switch pop out menu.`
 )
 
 func updateTranslateWindow() {
@@ -84,6 +84,7 @@ func updateBackgroundColor() {
 		themeDropDown,
 		transparentDropDown,
 		hideBelowDropDown,
+		osc52DropDown,
 		srcBorderDropDown,
 		dstBorderDropDown} {
 		dropdown.SetListStyles(tcell.StyleDefault.
@@ -145,6 +146,7 @@ func updateNonConfigColor() {
 		themeDropDown,
 		transparentDropDown,
 		hideBelowDropDown,
+		osc52DropDown,
 		srcBorderDropDown,
 		dstBorderDropDown} {
 		labelDropDown.SetLabelColor(uiStyle.LabelColor()).
@@ -286,15 +288,20 @@ func uiInit() {
 	themeDropDown.SetLabel("Theme: ").
 		SetOptions(style.AllTheme, nil).
 		SetCurrentOption(IndexOf(uiStyle.Theme, style.AllTheme))
+	transparentDropDown.SetLabel("Transparent: ").
+		SetOptions([]string{"true", "false"}, nil).
+		SetCurrentOption(
+			IndexOf(strconv.FormatBool(uiStyle.Transparent),
+				[]string{"true", "false"}))
 	hideBelowDropDown.SetLabel("Hide below: ").
 		SetOptions([]string{"true", "false"}, nil).
 		SetCurrentOption(
 			IndexOf(strconv.FormatBool(uiStyle.HideBelow),
 				[]string{"true", "false"}))
-	transparentDropDown.SetLabel("Transparent: ").
+	osc52DropDown.SetLabel("OSC 52: ").
 		SetOptions([]string{"true", "false"}, nil).
 		SetCurrentOption(
-			IndexOf(strconv.FormatBool(uiStyle.Transparent),
+			IndexOf(strconv.FormatBool(uiStyle.OSC52),
 				[]string{"true", "false"}))
 	srcBorderDropDown.SetLabel("Border Color: ").
 		SetOptions(style.Palette, nil).
@@ -340,7 +347,7 @@ func uiInit() {
 					Item{item: dstLangDropDown, fixedSize: 0, proportion: 1, focus: false}),
 					fixedSize: 0, proportion: 1, focus: true}),
 				fixedSize: 2 * langStrMaxLength, proportion: 1, focus: true}),
-			popOutWindowHeight, 1, true).
+			popOutMenuHeight, 1, true).
 		AddItem(attachButton(), 1, 1, false).
 		AddItem(nil, 0, 1, false)
 	stylePopOut.SetDirection(tview.FlexRow).
@@ -351,22 +358,23 @@ func uiInit() {
 					Item{item: attachItems(false, tview.FlexRow,
 						Item{item: themeDropDown, fixedSize: 0, proportion: 1, focus: true},
 						Item{item: transparentDropDown, fixedSize: 0, proportion: 1, focus: false},
-						Item{item: hideBelowDropDown, fixedSize: 0, proportion: 1, focus: false}),
+						Item{item: hideBelowDropDown, fixedSize: 0, proportion: 1, focus: false},
+						Item{item: osc52DropDown, fixedSize: 0, proportion: 1, focus: false}),
 						fixedSize: 0, proportion: 1, focus: true}),
-					fixedSize: 3, proportion: 1, focus: true},
+					fixedSize: 4, proportion: 1, focus: true},
 				Item{item: attachItems(false, tview.FlexColumn,
 					Item{item: srcBorderDropDown, fixedSize: 0, proportion: 1, focus: false},
 					Item{item: dstBorderDropDown, fixedSize: 0, proportion: 1, focus: false}),
 					fixedSize: 0, proportion: 1, focus: false}),
 				fixedSize: 2 * langStrMaxLength, proportion: 1, focus: true}),
-			popOutWindowHeight, 1, true).
+			popOutMenuHeight, 1, true).
 		AddItem(attachButton(), 1, 1, false).
 		AddItem(nil, 0, 1, false)
 	keyMapPopOut.SetDirection(tview.FlexRow).
 		AddItem(nil, 0, 1, false).
 		AddItem(attachItems(true, tview.FlexColumn,
 			Item{item: keyMapMenu, fixedSize: 2 * langStrMaxLength, proportion: 1, focus: true}),
-			popOutWindowHeight, 1, true).
+			popOutMenuHeight, 1, true).
 		AddItem(attachButton(), 1, 1, false).
 		AddItem(nil, 0, 1, false)
 
@@ -429,6 +437,10 @@ func uiInit() {
 			uiStyle.HideBelow, _ = strconv.ParseBool(text)
 			updateTranslateWindow()
 		})
+	osc52DropDown.SetDoneFunc(styleDropDownHandler).
+		SetSelectedFunc(func(text string, index int) {
+			uiStyle.OSC52, _ = strconv.ParseBool(text)
+		})
 	srcBorderDropDown.SetDoneFunc(styleDropDownHandler).
 		SetSelectedFunc(func(text string, index int) {
 			uiStyle.SetSrcBorderColor(text)

utils.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"encoding/base64"
 	"fmt"
 	"os"
 	"os/exec"
@@ -22,6 +23,11 @@ func SetTermTitle(name string) {
 }
 
 func CopyToClipboard(text string) {
+	if uiStyle.OSC52 {
+		fmt.Printf("\033]52;c;%s\a", base64.StdEncoding.EncodeToString([]byte(text)))
+		return
+	}
+
 	var cmd *exec.Cmd
 
 	switch runtime.GOOS {