cmd/micro/action/termhandler.go

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