internal/action/termpane.go

   1 package action
   2
   3 import (
   4         "errors"
   5         "runtime"
   6
   7         "github.com/zyedidia/micro/v2/internal/clipboard"
   8         "github.com/zyedidia/micro/v2/internal/display"
   9         "github.com/zyedidia/micro/v2/internal/screen"
  10         "github.com/zyedidia/micro/v2/internal/shell"
  11         "github.com/zyedidia/tcell"
  12         "github.com/zyedidia/terminal"
  13 )
  14
  15 type TermPane struct {
  16         *shell.Terminal
  17         display.Window
  18
  19         mouseReleased bool
  20         id            uint64
  21         tab           *Tab
  22 }
  23
  24 func NewTermPane(x, y, w, h int, t *shell.Terminal, id uint64, tab *Tab) (*TermPane, error) {
  25         if !TermEmuSupported {
  26                 return nil, errors.New("Terminal emulator is not supported on this system")
  27         }
  28
  29         th := new(TermPane)
  30         th.Terminal = t
  31         th.id = id
  32         th.mouseReleased = true
  33         th.Window = display.NewTermWindow(x, y, w, h, t)
  34         th.tab = tab
  35         return th, nil
  36 }
  37
  38 func (t *TermPane) ID() uint64 {
  39         return t.id
  40 }
  41
  42 func (t *TermPane) SetID(i uint64) {
  43         t.id = i
  44 }
  45
  46 func (t *TermPane) SetTab(tab *Tab) {
  47         t.tab = tab
  48 }
  49
  50 func (t *TermPane) Tab() *Tab {
  51         return t.tab
  52 }
  53
  54 func (t *TermPane) Close() {}
  55
  56 func (t *TermPane) Quit() {
  57         t.Close()
  58         if len(MainTab().Panes) > 1 {
  59                 t.Unsplit()
  60         } else if len(Tabs.List) > 1 {
  61                 Tabs.RemoveTab(t.id)
  62         } else {
  63                 screen.Screen.Fini()
  64                 InfoBar.Close()
  65                 runtime.Goexit()
  66         }
  67 }
  68
  69 func (t *TermPane) Unsplit() {
  70         n := MainTab().GetNode(t.id)
  71         n.Unsplit()
  72
  73         MainTab().RemovePane(MainTab().GetPane(t.id))
  74         MainTab().Resize()
  75         MainTab().SetActive(len(MainTab().Panes) - 1)
  76 }
  77
  78 // HandleEvent handles a tcell event by forwarding it to the terminal emulator
  79 // If the event is a mouse event and the program running in the emulator
  80 // does not have mouse support, the emulator will support selections and
  81 // copy-paste
  82 func (t *TermPane) HandleEvent(event tcell.Event) {
  83         if e, ok := event.(*tcell.EventKey); ok {
  84                 if t.Status == shell.TTDone {
  85                         switch e.Key() {
  86                         case tcell.KeyEscape, tcell.KeyCtrlQ, tcell.KeyEnter:
  87                                 t.Close()
  88                                 t.Quit()
  89                         default:
  90                         }
  91                 }
  92                 if e.Key() == tcell.KeyCtrlC && t.HasSelection() {
  93                         clipboard.Write(t.GetSelection(t.GetView().Width), clipboard.ClipboardReg)
  94                         InfoBar.Message("Copied selection to clipboard")
  95                 } else if t.Status != shell.TTDone {
  96                         t.WriteString(event.EscSeq())
  97                 }
  98         } else if _, ok := event.(*tcell.EventPaste); ok {
  99                 if t.Status != shell.TTDone {
 100                         t.WriteString(event.EscSeq())
 101                 }
 102         } else if e, ok := event.(*tcell.EventMouse); e != nil && (!ok || t.State.Mode(terminal.ModeMouseMask)) {
 103                 // t.WriteString(event.EscSeq())
 104         } else if e != nil {
 105                 x, y := e.Position()
 106                 v := t.GetView()
 107                 x -= v.X
 108                 y -= v.Y
 109
 110                 if e.Buttons() == tcell.Button1 {
 111                         if !t.mouseReleased {
 112                                 // drag
 113                                 t.Selection[1].X = x
 114                                 t.Selection[1].Y = y
 115                         } else {
 116                                 t.Selection[0].X = x
 117                                 t.Selection[0].Y = y
 118                                 t.Selection[1].X = x
 119                                 t.Selection[1].Y = y
 120                         }
 121
 122                         t.mouseReleased = false
 123                 } else if e.Buttons() == tcell.ButtonNone {
 124                         if !t.mouseReleased {
 125                                 t.Selection[1].X = x
 126                                 t.Selection[1].Y = y
 127                         }
 128                         t.mouseReleased = true
 129                 }
 130         }
 131
 132         if t.Status == shell.TTClose {
 133                 t.Quit()
 134         }
 135 }
 136
 137 func (t *TermPane) HandleCommand(input string) {
 138         InfoBar.Error("Commands are unsupported in term for now")
 139 }