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Diffstat (limited to 'Godeps/_workspace/src/github.com/gizak/termui/events.go')
| -rw-r--r-- | Godeps/_workspace/src/github.com/gizak/termui/events.go | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/gizak/termui/events.go b/Godeps/_workspace/src/github.com/gizak/termui/events.go new file mode 100644 index 000000000..23a189b56 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gizak/termui/events.go @@ -0,0 +1,219 @@ +// Copyright 2015 Zack Guo <gizak@icloud.com>. All rights reserved. +// Use of this source code is governed by a MIT license that can +// be found in the LICENSE file. +// +// Portions of this file uses [termbox-go](https://github.com/nsf/termbox-go/blob/54b74d087b7c397c402d0e3b66d2ccb6eaf5c2b4/api_common.go) +// by [authors](https://github.com/nsf/termbox-go/blob/master/AUTHORS) +// under [license](https://github.com/nsf/termbox-go/blob/master/LICENSE) + +package termui + +import "github.com/nsf/termbox-go" + +/***********************************termbox-go**************************************/ + +type ( + EventType uint8 + Modifier uint8 + Key uint16 +) + +// This type represents a termbox event. The 'Mod', 'Key' and 'Ch' fields are +// valid if 'Type' is EventKey. The 'Width' and 'Height' fields are valid if +// 'Type' is EventResize. The 'Err' field is valid if 'Type' is EventError. +type Event struct { + Type EventType // one of Event* constants + Mod Modifier // one of Mod* constants or 0 + Key Key // one of Key* constants, invalid if 'Ch' is not 0 + Ch rune // a unicode character + Width int // width of the screen + Height int // height of the screen + Err error // error in case if input failed + MouseX int // x coord of mouse + MouseY int // y coord of mouse + N int // number of bytes written when getting a raw event +} + +const ( + KeyF1 Key = 0xFFFF - iota + KeyF2 + KeyF3 + KeyF4 + KeyF5 + KeyF6 + KeyF7 + KeyF8 + KeyF9 + KeyF10 + KeyF11 + KeyF12 + KeyInsert + KeyDelete + KeyHome + KeyEnd + KeyPgup + KeyPgdn + KeyArrowUp + KeyArrowDown + KeyArrowLeft + KeyArrowRight + key_min // see terminfo + MouseLeft + MouseMiddle + MouseRight +) + +const ( + KeyCtrlTilde Key = 0x00 + KeyCtrl2 Key = 0x00 + KeyCtrlSpace Key = 0x00 + KeyCtrlA Key = 0x01 + KeyCtrlB Key = 0x02 + KeyCtrlC Key = 0x03 + KeyCtrlD Key = 0x04 + KeyCtrlE Key = 0x05 + KeyCtrlF Key = 0x06 + KeyCtrlG Key = 0x07 + KeyBackspace Key = 0x08 + KeyCtrlH Key = 0x08 + KeyTab Key = 0x09 + KeyCtrlI Key = 0x09 + KeyCtrlJ Key = 0x0A + KeyCtrlK Key = 0x0B + KeyCtrlL Key = 0x0C + KeyEnter Key = 0x0D + KeyCtrlM Key = 0x0D + KeyCtrlN Key = 0x0E + KeyCtrlO Key = 0x0F + KeyCtrlP Key = 0x10 + KeyCtrlQ Key = 0x11 + KeyCtrlR Key = 0x12 + KeyCtrlS Key = 0x13 + KeyCtrlT Key = 0x14 + KeyCtrlU Key = 0x15 + KeyCtrlV Key = 0x16 + KeyCtrlW Key = 0x17 + KeyCtrlX Key = 0x18 + KeyCtrlY Key = 0x19 + KeyCtrlZ Key = 0x1A + KeyEsc Key = 0x1B + KeyCtrlLsqBracket Key = 0x1B + KeyCtrl3 Key = 0x1B + KeyCtrl4 Key = 0x1C + KeyCtrlBackslash Key = 0x1C + KeyCtrl5 Key = 0x1D + KeyCtrlRsqBracket Key = 0x1D + KeyCtrl6 Key = 0x1E + KeyCtrl7 Key = 0x1F + KeyCtrlSlash Key = 0x1F + KeyCtrlUnderscore Key = 0x1F + KeySpace Key = 0x20 + KeyBackspace2 Key = 0x7F + KeyCtrl8 Key = 0x7F +) + +// Alt modifier constant, see Event.Mod field and SetInputMode function. +const ( + ModAlt Modifier = 0x01 +) + +// Event type. See Event.Type field. +const ( + EventKey EventType = iota + EventResize + EventMouse + EventError + EventInterrupt + EventRaw + EventNone +) + +/**************************************end**************************************/ + +// convert termbox.Event to termui.Event +func uiEvt(e termbox.Event) Event { + event := Event{} + event.Type = EventType(e.Type) + event.Mod = Modifier(e.Mod) + event.Key = Key(e.Key) + event.Ch = e.Ch + event.Width = e.Width + event.Height = e.Height + event.Err = e.Err + event.MouseX = e.MouseX + event.MouseY = e.MouseY + event.N = e.N + + return event +} + +var evtChs = make([]chan Event, 0) + +// EventCh returns an output-only event channel. +// This function can be called many times (multiplexer). +func EventCh() <-chan Event { + out := make(chan Event) + evtChs = append(evtChs, out) + return out +} + +// turn on event listener +func evtListen() { + go func() { + for { + e := termbox.PollEvent() + // dispatch + for _, c := range evtChs { + go func(ch chan Event) { + ch <- uiEvt(e) + }(c) + } + } + }() +} + +/* +// EventHandlers is a handler sequence +var EventHandlers []func(Event) + +var signalQuit = make(chan bool) + +// Quit sends quit signal to terminate termui +func Quit() { + signalQuit <- true +} + +// Wait listening to signalQuit, block operation. +func Wait() { + <-signalQuit +} + +// RegEvtHandler register function into TSEventHandler sequence. +func RegEvtHandler(fn func(Event)) { + EventHandlers = append(EventHandlers, fn) +} + +// EventLoop handles all events and +// redirects every event to callbacks in EventHandlers +func EventLoop() { + evt := make(chan termbox.Event) + + go func() { + for { + evt <- termbox.PollEvent() + } + }() + + for { + select { + case c := <-signalQuit: + defer func() { signalQuit <- c }() + return + case e := <-evt: + for _, fn := range EventHandlers { + fn(uiEvt(e)) + } + } + } +} +*/ |