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main.go
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package main
import (
"flag"
"fmt"
"log"
"os"
"os/exec"
"path/filepath"
"reflect"
"runtime"
"slices"
"time"
// "runtime/pprof"
"strconv"
"strings"
"github.com/gdamore/tcell/v2"
"github.com/kivattt/getopt"
"github.com/rivo/tview"
)
const version = "v1.7.20"
func SetTviewStyles() {
tview.Styles.PrimitiveBackgroundColor = tcell.ColorDefault
// For the dropdown in the options menu
tview.Styles.MoreContrastBackgroundColor = tcell.ColorBlack
tview.Styles.BorderColor = tcell.ColorDefault
tview.Borders.Horizontal = '─'
tview.Borders.Vertical = '│'
if runtime.GOOS == "freebsd" {
tview.Borders.TopLeft = '┌'
tview.Borders.TopRight = '┐'
tview.Borders.BottomLeft = '└'
tview.Borders.BottomRight = '┘'
} else {
tview.Borders.TopLeft = '╭'
tview.Borders.TopRight = '╮'
tview.Borders.BottomLeft = '╰'
tview.Borders.BottomRight = '╯'
}
}
func main() {
// f, _ := os.Create("profile.prof")
// pprof.StartCPUProfile(f)
// defer pprof.StopCPUProfile()
SetTviewStyles()
userConfigDir, err := os.UserConfigDir()
defaultConfigFilenamePath := ""
// If there was an error, defaultConfigFilenamePath will be an empty string ""
// and fen.ReadConfig() will return nil, just using the default config
if err == nil {
defaultConfigFilenamePath = filepath.Join(userConfigDir, "fen", "config.lua")
}
defaultConfigValues := NewConfigDefaultValues()
// When adding new flags, make sure to duplicate the name when we check flagPassed lower in this file
v := flag.Bool("version", false, "output version information and exit")
h := flag.Bool("help", false, "display this help and exit")
uiBorders := flag.Bool("ui-borders", defaultConfigValues.UiBorders, "enable UI borders")
mouse := flag.Bool("mouse", defaultConfigValues.Mouse, "enable mouse events")
noWrite := flag.Bool("no-write", defaultConfigValues.NoWrite, "safe mode, no file write operations will be performed")
hiddenFiles := flag.Bool("hidden-files", defaultConfigValues.HiddenFiles, "make hidden files visible")
foldersFirst := flag.Bool("folders-first", defaultConfigValues.FoldersFirst, "always show folders at the top")
printPathOnOpen := flag.Bool("print-path-on-open", defaultConfigValues.PrintPathOnOpen, "output file path(s) and exit when opening file(s)")
printFolderOnExit := flag.Bool("print-folder-on-exit", false, "output the current working folder in fen on exit")
allowTerminalTitle := flag.Bool("terminal-title", defaultConfigValues.TerminalTitle, "change terminal title to 'fen "+version+"' while open")
showHelpText := flag.Bool("show-help-text", defaultConfigValues.ShowHelpText, "show the 'For help: ...' text")
showHostname := flag.Bool("show-hostname", defaultConfigValues.ShowHostname, "show username@hostname in the top-left")
closeOnEscape := flag.Bool("close-on-escape", defaultConfigValues.CloseOnEscape, "make the escape key exit fen")
selectPaths := flag.Bool("select", false, "select PATHS")
configFilename := flag.String("config", defaultConfigFilenamePath, "use configuration file")
sortBy := flag.String("sort-by", defaultConfigValues.SortBy, "sort files ("+strings.Join(ValidSortByValues[:], ", ")+")")
sortReverse := flag.Bool("sort-reverse", defaultConfigValues.SortReverse, "reverse sort")
getopt.CommandLine.SetOutput(os.Stdout)
getopt.CommandLine.Init("fen", flag.ExitOnError)
getopt.Aliases(
"v", "version",
"h", "help",
// "s", "select", // This doesn't work for some reason
)
err = getopt.CommandLine.Parse(os.Args[1:])
if err != nil {
os.Exit(2)
}
if *v {
fmt.Println("fen " + version)
os.Exit(0)
}
if *h {
fmt.Println("Usage: " + filepath.Base(os.Args[0]) + " [OPTIONS] [FILES]")
fmt.Println("Terminal file manager")
fmt.Println()
getopt.PrintDefaults()
os.Exit(0)
}
path, err := filepath.Abs(getopt.CommandLine.Arg(0))
if path == "" || err != nil {
path, err = CurrentWorkingDirectory()
if err != nil {
log.Fatal(err)
}
}
var fen Fen
// Presumably a different value passed by command-line argument
if *configFilename != defaultConfigFilenamePath {
_, err := os.Stat(*configFilename)
if err != nil {
log.Fatal("Could not find file: " + *configFilename)
}
}
if !fen.config.NoWrite {
os.Mkdir(filepath.Join(userConfigDir, "fen"), 0o775)
}
err = fen.ReadConfig(*configFilename)
if err != nil {
fmt.Fprintln(os.Stderr, err)
// Hacky, but gets the job done
if !strings.HasSuffix(err.Error(), "config files can only be Lua.\n") {
fmt.Println("Invalid config '" + *configFilename + "', exiting")
} else if !fen.config.NoWrite {
PromptForGenerateLuaConfig(*configFilename, &fen)
}
os.Exit(1)
}
// We have to check *selectPaths before flag.Parse()
if *selectPaths {
for _, arg := range getopt.CommandLine.Args() {
pathAbsolute, err := filepath.Abs(arg)
if err != nil {
continue
}
// Don't allow selecting the root folder, since it is normally impossible to do and relatively invisible to the user
if pathAbsolute == filepath.Dir(pathAbsolute) {
continue
}
_, err = os.Lstat(pathAbsolute)
if err != nil {
continue
}
fen.EnableSelection(pathAbsolute)
}
}
flag.Parse()
flagPassed := func(name string) bool {
found := false
flag.Visit(func(f *flag.Flag) {
if f.Name == name {
found = true
}
})
return found
}
// Maybe clean this up at some point
if flagPassed("ui-borders") {
fen.config.UiBorders = *uiBorders
}
if flagPassed("mouse") {
fen.config.Mouse = *mouse
}
if flagPassed("no-write") {
fen.config.NoWrite = *noWrite
}
if flagPassed("hidden-files") {
fen.config.HiddenFiles = *hiddenFiles
}
if flagPassed("folders-first") {
fen.config.FoldersFirst = *foldersFirst
}
if flagPassed("print-path-on-open") {
fen.config.PrintPathOnOpen = *printPathOnOpen
}
if flagPassed("terminal-title") {
fen.config.TerminalTitle = *allowTerminalTitle
}
if flagPassed("show-help-text") {
fen.config.ShowHelpText = *showHelpText
}
if flagPassed("show-hostname") {
fen.config.ShowHostname = *showHostname
}
if flagPassed("close-on-escape") {
fen.config.CloseOnEscape = *closeOnEscape
}
if flagPassed("sort-by") {
fen.config.SortBy = *sortBy
}
if flagPassed("sort-reverse") {
fen.config.SortReverse = *sortReverse
}
app := tview.NewApplication()
helpScreen := NewHelpScreen(&fen)
librariesScreen := NewLibrariesScreen()
err = fen.Init(path, app, &helpScreen.visible, &librariesScreen.visible)
defer fen.Fini()
if err != nil {
log.Fatal(err)
}
flex := tview.NewFlex().SetDirection(tview.FlexRow).
AddItem(fen.topBar, 1, 0, false).
AddItem(tview.NewFlex().SetDirection(tview.FlexColumn).
AddItem(fen.leftPane, 0, 1, false).
AddItem(fen.middlePane, 0, 3, false).
AddItem(fen.rightPane, 0, 3, false), 0, 1, false).
AddItem(fen.bottomBar, 1, 0, false)
pages := tview.NewPages().
AddPage("flex", flex, true, true)
centered := func(p tview.Primitive, height int) tview.Primitive {
return tview.NewFlex().
AddItem(nil, 0, 1, false).
AddItem(tview.NewFlex().SetDirection(tview.FlexRow).
AddItem(nil, 0, 1, false).
AddItem(p, height, 1, true).
AddItem(nil, 0, 1, false), 0, 2, true).
AddItem(nil, 0, 1, false)
}
helpScreen.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
if event.Key() == tcell.KeyDown || event.Rune() == 'j' {
helpScreen.ScrollDown()
} else if event.Key() == tcell.KeyUp || event.Rune() == 'k' {
helpScreen.ScrollUp()
} else if event.Key() == tcell.KeyF1 || event.Rune() == '?' || event.Key() == tcell.KeyEscape || event.Rune() == 'q' {
helpScreen.visible = false
helpScreen.scrollIndex = 0
pages.RemovePage("popup")
fen.ShowFilepanes()
return nil
} else if event.Key() == tcell.KeyF2 {
helpScreen.visible = false
helpScreen.scrollIndex = 0
pages.RemovePage("popup")
librariesScreen.visible = true
pages.AddPage("popup", librariesScreen, true, true)
return nil
}
return event
})
librariesScreen.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
if event.Key() == tcell.KeyF2 || event.Key() == tcell.KeyEscape || event.Rune() == 'q' {
librariesScreen.visible = false
pages.RemovePage("popup")
fen.ShowFilepanes()
return nil
}
if event.Key() == tcell.KeyF1 || event.Rune() == '?' {
librariesScreen.visible = false
pages.RemovePage("popup")
helpScreen.visible = true
pages.AddPage("popup", helpScreen, true, true)
return nil
}
return event
})
lastWheelUpTime := time.Now()
lastWheelDownTime := time.Now()
app.SetMouseCapture(func(event *tcell.EventMouse, action tview.MouseAction) (*tcell.EventMouse, tview.MouseAction) {
if pages.HasPage("popup") {
// Since `return nil, action` redraws the screen for some reason,
// we have to manually pass through mouse movement events so the screen won't flicker when you move your mouse
if action == tview.MouseMove {
return event, action
}
return nil, action
}
// Required to prevent a nil dereference crash
if event == nil {
return nil, action
}
if action != tview.MouseMove {
fen.bottomBar.alternateText = ""
}
// Setting the clipboard is disallowed in no-write mode because it runs a shell command
if !fen.config.NoWrite && (runtime.GOOS == "linux" || runtime.GOOS == "freebsd") && (event.Buttons() == tcell.Button1 || event.Buttons() == tcell.Button2) {
_, mouseY := event.Position()
if mouseY == 0 {
err := SetClipboardLinuxXClip(fen.sel)
if err != nil {
fen.topBar.additionalText = "[red::]Copy failed (install xclip)"
fen.bottomBar.TemporarilyShowTextInstead(err.Error())
return nil, action
}
fen.topBar.additionalText = "[#00ff00:]Copied to clipboard!"
fen.topBar.showAdditionalText = true
return event, action
}
} else if action == tview.MouseMove {
if runtime.GOOS == "windows" {
return event, action
}
_, mouseY := event.Position()
if mouseY == 0 {
if fen.showHomePathAsTilde {
fen.showHomePathAsTilde = false
if runtime.GOOS == "linux" || runtime.GOOS == "freebsd" {
if fen.config.NoWrite {
fen.topBar.additionalText = "[red]Copying unavailable (no-write)"
} else {
fen.topBar.additionalText = "Click to copy"
}
fen.topBar.showAdditionalText = true
}
return nil, action
}
} else {
if !fen.showHomePathAsTilde {
fen.showHomePathAsTilde = true
fen.topBar.showAdditionalText = false
return nil, action
}
}
return event, action
}
if action == tview.MouseMove {
return event, action
}
// Movement/navigation keys
switch event.Buttons() {
case tcell.Button1, tcell.Button2:
// Small inconsistency with --ui-borders when clicking the left border of the middlepane, not important
x, y, w, h := fen.middlePane.GetInnerRect()
mouseX, mouseY := event.Position()
if mouseY < y || mouseY > h { // We don't check > y+h so clicking the bottom row of the screen is ignored
break
}
if mouseX < x {
fen.GoLeft()
} else if mouseX > x+w {
fen.GoRight(app, "")
} else {
fen.GoIndex(mouseY - y + fen.middlePane.GetTopScreenEntryIndex())
}
case tcell.WheelLeft:
fen.GoLeft()
case tcell.WheelRight:
fen.GoRight(app, "")
case tcell.WheelUp:
moved := false
if time.Since(lastWheelUpTime) > time.Duration(30*time.Millisecond) {
moved = fen.GoUp()
} else {
moved = fen.GoUp(fen.config.ScrollSpeed)
}
lastWheelUpTime = time.Now()
if !moved {
app.DontDrawOnThisEventMouse()
return nil, action
}
case tcell.WheelDown:
moved := false
if time.Since(lastWheelDownTime) > time.Duration(30*time.Millisecond) {
moved = fen.GoDown()
} else {
moved = fen.GoDown(fen.config.ScrollSpeed)
}
lastWheelDownTime = time.Now()
if !moved {
app.DontDrawOnThisEventMouse()
return nil, action
}
default:
return nil, action
}
if event.Buttons() != tcell.WheelLeft {
fen.history.AddToHistory(fen.sel)
}
fen.UpdatePanes(false)
return nil, action
})
enterWillSelectAutoCompleteInGotoPath := false
app.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
if pages.HasPage("popup") {
return event
}
fen.bottomBar.alternateText = ""
if event.Rune() == 'q' || (fen.config.CloseOnEscape && event.Key() == tcell.KeyEscape) {
fen.fileOperationsHandler.workCountMutex.Lock()
if fen.fileOperationsHandler.workCount <= 0 {
fen.fileOperationsHandler.workCountMutex.Unlock()
app.Stop()
return nil
}
modal := tview.NewModal()
modal.SetInputCapture(func(e *tcell.EventKey) *tcell.EventKey {
switch e.Rune() {
case 'h':
return tcell.NewEventKey(tcell.KeyLeft, e.Rune(), e.Modifiers())
case 'l':
return tcell.NewEventKey(tcell.KeyRight, e.Rune(), e.Modifiers())
case 'j':
return tcell.NewEventKey(tcell.KeyDown, e.Rune(), e.Modifiers())
case 'k':
return tcell.NewEventKey(tcell.KeyUp, e.Rune(), e.Modifiers())
}
return e
})
modal.SetText(strconv.Itoa(fen.fileOperationsHandler.workCount) + " file operations in progress.\nQuitting can corrupt your files!")
fen.fileOperationsHandler.workCountMutex.Unlock()
modal.
AddButtons([]string{"Force quit", "Cancel"}).
SetFocus(1). // Default is "No"
SetDoneFunc(func(buttonIndex int, buttonLabel string) {
pages.RemovePage("popup")
if buttonIndex != 0 {
return
}
app.Stop()
})
modal.SetBorder(true)
modal.Box.SetBackgroundColor(tcell.ColorBlack) // This sets the border background color
modal.SetBackgroundColor(tcell.ColorBlack)
modal.SetButtonBackgroundColor(tcell.ColorDefault)
modal.SetButtonTextColor(tcell.ColorRed)
pages.AddPage("popup", modal, true, true)
app.SetFocus(modal)
return nil
}
// Movement/navigation keys
wasMovementKey := true
if (event.Modifiers()&tcell.ModCtrl == 0 && event.Key() == tcell.KeyLeft) || event.Rune() == 'h' {
fen.GoLeft()
} else if (event.Modifiers()&tcell.ModCtrl == 0 && event.Key() == tcell.KeyRight) || event.Rune() == 'l' || event.Key() == tcell.KeyEnter {
fen.GoRight(app, "")
} else if event.Key() == tcell.KeyUp || event.Rune() == 'k' {
if !fen.GoUp() {
app.DontDrawOnThisEventKey()
return nil
}
} else if event.Key() == tcell.KeyDown || event.Rune() == 'j' {
if !fen.GoDown() {
app.DontDrawOnThisEventKey()
return nil
}
} else if event.Rune() == ' ' {
fen.ToggleSelection(fen.sel)
fen.GoDown()
} else if event.Key() == tcell.KeyHome || event.Rune() == 'g' {
if fen.config.FoldersFirst && fen.config.SplitHomeEnd {
if !fen.GoTopFileOrTop() {
app.DontDrawOnThisEventKey()
return nil
}
} else {
if !fen.GoTop() {
app.DontDrawOnThisEventKey()
return nil
}
}
} else if event.Key() == tcell.KeyEnd || event.Rune() == 'G' {
if fen.config.FoldersFirst && fen.config.SplitHomeEnd {
if !fen.GoBottomFolderOrBottom() {
app.DontDrawOnThisEventKey()
return nil
}
} else {
if !fen.GoBottom() {
app.DontDrawOnThisEventKey()
return nil
}
}
} else if event.Rune() == 'M' {
fen.GoMiddle()
} else if event.Rune() == 'H' {
fen.GoTopScreen()
} else if event.Rune() == 'L' {
fen.GoBottomScreen()
} else if event.Key() == tcell.KeyPgUp {
fen.PageUp()
} else if event.Key() == tcell.KeyPgDn {
fen.PageDown()
} else {
wasMovementKey = false
}
if wasMovementKey {
if !((event.Modifiers()&tcell.ModCtrl == 0 && event.Key() == tcell.KeyLeft) || event.Rune() == 'h') {
fen.history.AddToHistory(fen.sel)
}
fen.UpdatePanes(false)
return nil
}
if event.Rune() == '/' || event.Key() == tcell.KeyCtrlF {
inputField := tview.NewInputField().
SetLabel(" Search: ").
SetPlaceholder("case-insensitive").
SetFieldWidth(-1) // Special feature of my tview fork, github.com/kivattt/tview
inputField.SetAcceptanceFunc(func(textToCheck string, lastChar rune) bool {
return lastChar != '/' // FIXME: Hack to prevent the slash appearing in the search inputfield by just disallowing them
})
inputField.SetDoneFunc(func(key tcell.Key) {
pages.RemovePage("popup")
if key == tcell.KeyEscape {
return
}
err := fen.GoSearchFirstMatch(inputField.GetText())
if err != nil {
// FIXME: We need a log window or something
fen.bottomBar.TemporarilyShowTextInstead("Nothing found")
} else {
// Same code as the wasMovementKey check
fen.history.AddToHistory(fen.sel)
fen.UpdatePanes(false)
}
})
inputField.SetBorder(true)
inputField.SetBorderStyle(tcell.StyleDefault.Background(tcell.ColorBlack))
inputField.SetTitleColor(tcell.ColorDefault)
inputField.SetFieldBackgroundColor(tcell.ColorGray)
inputField.SetFieldTextColor(tcell.ColorBlack)
inputField.SetLabelStyle(tcell.StyleDefault.Background(tcell.ColorBlack))
inputField.SetLabelColor(tcell.NewRGBColor(0, 255, 0)) // Green
inputField.SetPlaceholderStyle(tcell.StyleDefault.Background(tcell.ColorGray).Dim(true))
pages.AddPage("popup", centered(inputField, 3), true, true)
return nil
} else if event.Rune() == 'A' {
for _, e := range fen.middlePane.entries.Load().([]os.DirEntry) {
fen.ToggleSelection(filepath.Join(fen.wd, e.Name()))
}
fen.DisableSelectingWithV()
return nil
} else if event.Rune() == 'D' {
if len(fen.selected) > 0 {
fen.selected = make(map[string]bool)
fen.bottomBar.TemporarilyShowTextInstead("Deselected!")
} else if len(fen.yankSelected) > 0 {
fen.yankSelected = make(map[string]bool)
fen.bottomBar.TemporarilyShowTextInstead("Un-yanked!")
}
fen.DisableSelectingWithV()
return nil
} else if event.Rune() == 'a' {
fen.DisableSelectingWithV()
fileToRename := fen.sel
inputField := tview.NewInputField().
SetLabel(" Rename: ").
SetText(filepath.Base(fileToRename)).
SetFieldWidth(-1) // Special feature of my tview fork, github.com/kivattt/tview
inputField.SetDoneFunc(func(key tcell.Key) {
if key == tcell.KeyEscape {
pages.RemovePage("popup")
return
} else if key == tcell.KeyEnter {
if !fen.config.NoWrite {
if inputField.GetText() == "" {
pages.RemovePage("popup")
fen.bottomBar.TemporarilyShowTextInstead("Can't rename with an empty name")
return
}
newPath := filepath.Join(filepath.Dir(fileToRename), inputField.GetText())
_, err := os.Lstat(newPath)
if err == nil {
pages.RemovePage("popup")
fen.bottomBar.TemporarilyShowTextInstead("Can't rename to an existing file")
return
}
err = os.Rename(fileToRename, newPath)
if err != nil {
pages.RemovePage("popup")
fen.bottomBar.TemporarilyShowTextInstead("Can't rename, no access")
return
}
// These are also done by file system events, but let's be safe
fen.RemoveFromSelectedAndYankSelected(fileToRename)
fen.history.RemoveFromHistory(fileToRename)
// We can't use fen.GoPath() here because it would enter directories
fen.UpdatePanes(true)
fen.sel = newPath
fen.middlePane.SetSelectedEntryFromString(filepath.Base(fen.sel)) // fen.UpdatePanes() overwrites fen.sel, so we have to set the index
fen.history.AddToHistory(newPath)
} else {
fen.bottomBar.TemporarilyShowTextInstead("Can't rename in no-write mode")
}
pages.RemovePage("popup")
return
}
})
inputField.SetBorder(true)
inputField.SetBorderStyle(tcell.StyleDefault.Background(tcell.ColorBlack))
inputField.SetTitleColor(tcell.ColorDefault)
inputField.SetFieldBackgroundColor(tcell.ColorGray)
inputField.SetFieldTextColor(tcell.ColorBlack)
inputField.SetLabelStyle(tcell.StyleDefault.Background(tcell.ColorBlack)) // This has to be before the .SetLabelColor
inputField.SetLabelColor(tcell.NewRGBColor(0, 255, 0)) // Green
pages.AddPage("popup", centered(inputField, 3), true, true)
app.SetFocus(inputField)
return nil
} else if event.Rune() == 'n' || event.Rune() == 'N' {
fen.DisableSelectingWithV()
inputField := tview.NewInputField().
SetFieldWidth(-1) // Special feature of my tview fork, github.com/kivattt/tview
if event.Rune() == 'n' {
inputField.SetLabel(" New file: ")
} else if event.Rune() == 'N' {
inputField.SetLabel(" New folder: ")
}
inputField.SetDoneFunc(func(key tcell.Key) {
if key == tcell.KeyEscape {
pages.RemovePage("popup")
return
} else if key == tcell.KeyEnter {
pathToUse := filepath.Join(fen.wd, inputField.GetText())
if filepath.Dir(pathToUse) != fen.wd || (runtime.GOOS != "windows" && pathToUse == string(os.PathSeparator)) || strings.ContainsRune(inputField.GetText(), os.PathSeparator) {
fen.bottomBar.TemporarilyShowTextInstead("Paths outside of the current folder are not yet supported")
pages.RemovePage("popup")
return
}
_, err := os.Stat(pathToUse) // Here to make sure we don't overwrite a file when making a new one
if !fen.config.NoWrite && err != nil {
var createFileOrFolderErr error
if event.Rune() == 'n' {
var file *os.File
file, createFileOrFolderErr = os.Create(pathToUse)
if createFileOrFolderErr == nil {
defer file.Close()
}
} else if event.Rune() == 'N' {
createFileOrFolderErr = os.Mkdir(pathToUse, 0775)
}
if createFileOrFolderErr != nil {
fen.bottomBar.TemporarilyShowTextInstead(createFileOrFolderErr.Error())
} else {
fen.sel = pathToUse
fen.history.AddToHistory(fen.sel)
}
fen.UpdatePanes(true)
} else if fen.config.NoWrite {
fen.bottomBar.TemporarilyShowTextInstead("Can't create new files in no-write mode")
} else if err != nil {
fen.bottomBar.TemporarilyShowTextInstead(err.Error())
} else {
fen.bottomBar.TemporarilyShowTextInstead("Can't create an existing file")
}
pages.RemovePage("popup")
return
}
})
inputField.SetBorder(true)
inputField.SetBorderStyle(tcell.StyleDefault.Background(tcell.ColorBlack))
inputField.SetTitleColor(tcell.ColorDefault)
inputField.SetFieldBackgroundColor(tcell.ColorGray)
inputField.SetFieldTextColor(tcell.ColorBlack)
inputField.SetLabelStyle(tcell.StyleDefault.Background(tcell.ColorBlack)) // This has to be before the .SetLabelColor
inputField.SetLabelColor(tcell.NewRGBColor(0, 255, 0)) // Green
pages.AddPage("popup", centered(inputField, 3), true, true)
app.SetFocus(inputField)
return nil
} else if event.Rune() == 'y' {
fen.yankType = "copy"
if len(fen.selected) <= 0 {
fen.yankSelected = map[string]bool{fen.sel: true}
} else {
// We have to do this to copy fen.selected, and not a reference to it
fen.yankSelected = make(map[string]bool)
for k, v := range fen.selected {
fen.yankSelected[k] = v
}
}
fen.bottomBar.TemporarilyShowTextInstead("Yank!")
return nil
} else if event.Rune() == 'd' {
fen.yankType = "cut"
if len(fen.selected) <= 0 {
fen.yankSelected = map[string]bool{fen.sel: true}
} else {
// We have to do this to copy fen.selected, and not a reference to it
fen.yankSelected = make(map[string]bool)
for k, v := range fen.selected {
fen.yankSelected[k] = v
}
}
fen.bottomBar.TemporarilyShowTextInstead("Cut!")
return nil
} else if event.Rune() == 'z' || event.Key() == tcell.KeyBackspace {
fen.config.HiddenFiles = !fen.config.HiddenFiles
fen.InvalidateFolderFileCountCache()
fen.DisableSelectingWithV() // FIXME: We shouldn't disable it, but fixing it to not be buggy would be annoying
fen.UpdatePanes(true)
fen.history.AddToHistory(fen.sel)
return nil
} else if event.Rune() == 'p' {
if len(fen.yankSelected) <= 0 {
fen.bottomBar.TemporarilyShowTextInstead("Nothing to paste...") // TODO: We need a log we can scroll through
return nil
}
if fen.config.NoWrite {
fen.bottomBar.TemporarilyShowTextInstead("Can't paste in no-write mode")
return nil // TODO: Need a msg showing nothing was done in a log (we can scroll through)
}
if fen.yankType == "copy" {
for e := range fen.yankSelected {
newPath := FilePathUniqueNameIfAlreadyExists(filepath.Join(fen.wd, filepath.Base(e)))
go fen.fileOperationsHandler.QueueOperation(FileOperation{operation: Copy, path: e, newPath: newPath})
}
} else if fen.yankType == "cut" {
for e := range fen.yankSelected {
newPath := FilePathUniqueNameIfAlreadyExists(filepath.Join(fen.wd, filepath.Base(e)))
// If we're cutting, then pasting the file to the same location, don't actually do anything
if e == filepath.Join(fen.wd, filepath.Base(e)) {
continue
}
go fen.fileOperationsHandler.QueueOperation(FileOperation{operation: Rename, path: e, newPath: newPath})
}
} else {
panic("yankType was not \"copy\" or \"cut\"")
}
// Reset selection after paste
fen.yankSelected = make(map[string]bool)
fen.selected = make(map[string]bool)
fen.DisableSelectingWithV()
fen.UpdatePanes(false)
fen.bottomBar.TemporarilyShowTextInstead("Paste!")
return nil
} else if event.Rune() == 'V' {
fen.ToggleSelectingWithV()
fen.UpdatePanes(false)
return nil
} else if event.Key() == tcell.KeyEscape {
fen.DisableSelectingWithV()
fen.UpdatePanes(false)
return nil
} else if event.Key() == tcell.KeyF1 || event.Rune() == '?' {
helpScreen.visible = !helpScreen.visible
if helpScreen.visible {
pages.AddPage("popup", helpScreen, true, true)
fen.HideFilepanes()
} else {
pages.RemovePage("popup")
fen.ShowFilepanes()
}
return nil
} else if event.Key() == tcell.KeyF2 {
librariesScreen.visible = !librariesScreen.visible
if librariesScreen.visible {
pages.AddPage("popup", librariesScreen, true, true)
fen.HideFilepanes()
} else {
pages.RemovePage("popup")
fen.ShowFilepanes()
}
return nil
} else if event.Key() == tcell.KeyDelete || event.Rune() == 'x' {
modal := tview.NewModal()
modal.SetInputCapture(func(e *tcell.EventKey) *tcell.EventKey {
switch e.Rune() {
case 'h':
return tcell.NewEventKey(tcell.KeyLeft, e.Rune(), e.Modifiers())
case 'l':
return tcell.NewEventKey(tcell.KeyRight, e.Rune(), e.Modifiers())
case 'j':
return tcell.NewEventKey(tcell.KeyDown, e.Rune(), e.Modifiers())
case 'k':
return tcell.NewEventKey(tcell.KeyUp, e.Rune(), e.Modifiers())
}
return e
})
fileToDelete := ""
if len(fen.selected) <= 0 {
fileToDelete = fen.sel
fileToDeleteInfo, _ := os.Lstat(fileToDelete)
// When the text wraps, color styling gets reset on line breaks. I have not found a good solution yet
styleStr := StyleToStyleTagString(FileColor(fileToDeleteInfo, fileToDelete))
modal.SetText("[red::d]Delete[-:-:-:-] " + styleStr + FilenameInvisibleCharactersAsCodeHighlighted(tview.Escape(filepath.Base(fileToDelete)), styleStr) + "[-:-:-:-] ?")
} else {
selectedFromMultipleFolders := false
var firstFolderFound string
for path := range fen.selected {
if firstFolderFound == "" {
firstFolderFound = filepath.Dir(path)
continue
}
if filepath.Dir(path) != firstFolderFound {
selectedFromMultipleFolders = true
break
}
}
if selectedFromMultipleFolders {
modal.SetText("[red::d]Delete[-:-:-:-] " + tview.Escape(strconv.Itoa(len(fen.selected))) + " selected files [:red]from multiple folders[-:-:-:-] ?")
} else {
modal.SetText("[red::d]Delete[-:-:-:-] " + tview.Escape(strconv.Itoa(len(fen.selected))) + " selected files ?")
}
}
modal.
AddButtons([]string{"Yes", "No"}).
SetFocus(1). // Default is "No"
SetDoneFunc(func(buttonIndex int, buttonLabel string) {
pages.RemovePage("popup")
if buttonIndex != 0 {
return
}
if fen.config.NoWrite {
fen.bottomBar.TemporarilyShowTextInstead("Can't delete in no-write mode")
return
}
if len(fen.selected) <= 0 {
go fen.fileOperationsHandler.QueueOperation(FileOperation{operation: Delete, path: fileToDelete})
} else {
for filePath := range fen.selected {
go fen.fileOperationsHandler.QueueOperation(FileOperation{operation: Delete, path: filePath})
}
}
fen.selected = make(map[string]bool)
fen.DisableSelectingWithV()
fen.UpdatePanes(false)
})
modal.SetBorder(true)
modal.Box.SetBackgroundColor(tcell.ColorBlack) // This sets the border background color
modal.SetBackgroundColor(tcell.ColorBlack)
modal.SetButtonBackgroundColor(tcell.ColorDefault)
modal.SetButtonTextColor(tcell.ColorRed)
pages.AddPage("popup", modal, true, true)
app.SetFocus(modal)
return nil
} else if event.Rune() == 'c' {
inputField := tview.NewInputField().
SetLabel(" Goto path: ").
SetPlaceholder("Relative or absolute path, case-sensitive").
SetFieldWidth(-1) // Special feature of my tview fork, github.com/kivattt/tview
inputField.SetDoneFunc(func(key tcell.Key) {
if key == tcell.KeyEscape {
pages.RemovePage("popup")
return
} else if key == tcell.KeyEnter {
if inputField.GetText() == "" {
pages.RemovePage("popup")
return
}
path, err := fen.GoPath(inputField.GetText())
if err != nil {
pages.RemovePage("popup")
fen.bottomBar.TemporarilyShowTextInstead(err.Error())
return
}
pages.RemovePage("popup")
fen.bottomBar.TemporarilyShowTextInstead("Moved to path: \"" + path + "\"")
return
}
})
inputField.SetAutocompleteFunc(func(currentText string) (entries []string) {
if !enterWillSelectAutoCompleteInGotoPath {
return []string{}
}
var pathToUse string
if !filepath.IsAbs(currentText) {
pathToUse, err = filepath.Abs(filepath.Join(fen.wd, pathToUse))
if err != nil {
return []string{}
}
} else {
pathToUse = filepath.Dir(currentText)
}
dir, err := os.ReadDir(pathToUse)
if err != nil {
return []string{}
}
var ret []string
for _, e := range dir {
if e.IsDir() {
if !fen.config.HiddenFiles && strings.HasPrefix(e.Name(), ".") {
continue
}
ret = append(ret, filepath.Join(pathToUse, e.Name())+string(os.PathSeparator))
}
}
return ret
})
inputField.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
if event.Key() == tcell.KeyTab {
enterWillSelectAutoCompleteInGotoPath = true
return tcell.NewEventKey(tcell.KeyDown, 'j', tcell.ModNone)
} else if event.Key() == tcell.KeyBacktab {
enterWillSelectAutoCompleteInGotoPath = true
return tcell.NewEventKey(tcell.KeyUp, 'k', tcell.ModNone)
}
return event
})