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