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Merge pull request #277 from Koushien/cmdline-emacs-binds

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Support Emacs-style C-(a|e|k|u) in cmdline
This commit is contained in:
Oliver Blanthorn 2018-01-25 09:39:36 +00:00 • committed by GitHub
commit 555e543b00
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1 changed files with 42 additions and 2 deletions
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44
src/commandline_frame.ts
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@ -105,11 +105,47 @@ clInput.addEventListener("keydown", function (keyevent) {
history(1)
break
// Clear input on ^C
case "a":
if (keyevent.ctrlKey) {
keyevent.preventDefault()
keyevent.stopPropagation()
setCursor()
}
break
case "e":
if (keyevent.ctrlKey){
keyevent.preventDefault()
keyevent.stopPropagation()
setCursor(clInput.value.length)
}
break
case "u":
if (keyevent.ctrlKey){
keyevent.preventDefault()
keyevent.stopPropagation()
clInput.value = clInput.value.slice(clInput.selectionStart, clInput.value.length)
setCursor()
}
break
case "k":
if (keyevent.ctrlKey){
keyevent.preventDefault()
keyevent.stopPropagation()
clInput.value = clInput.value.slice(0, clInput.selectionStart)
}
break
// Clear input on ^C if there is no selection
// Todo: hard mode: vi style editing on cli, like set -o mode vi
// should probably just defer to another library
case "c":
if (keyevent.ctrlKey) hide_and_clear()
if (keyevent.ctrlKey &&
! clInput.value.substring(clInput.selectionStart, clInput.selectionEnd)) {
hide_and_clear()
}
break
case "f":
@ -173,6 +209,10 @@ async function hide_and_clear(){
isVisible = false
}
function setCursor(n = 0) {
clInput.setSelectionRange(n, n, "none")
}
function tabcomplete(){
let fragment = clInput.value
let matches = state.cmdHistory.filter((key)=>key.startsWith(fragment))