61 lines
1.5 KiB
Nim
61 lines
1.5 KiB
Nim
import history
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import ../editor
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import ../multiline
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import ../templates
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import options
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proc plugHistory*(ed: LineEditor): History =
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# adds hooks to events
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# after reading finished, it adds to history
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# before reading, it adds the temporary input to the history
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let hist = newHistory()
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ed.bindEvent(jeFinish):
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hist.clean()
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hist.newEntry(ed.content)
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ed.bindEvent(jePreRead):
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hist.newEntry(ed.content, temp = true)
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discard hist.toEnd()
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return hist
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proc bindHistory*(ed: LineEditor, h: History, useShift: bool = false) =
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## Adds history keybindings to editor (up, down, pg up/down)
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## Works with the history provided
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## if useShift is true, then the up/down keys and page up/down
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## will remain free, and shift+up/down and ctrl+pg up/down
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## will be used
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let upkey = if useShift: "shiftup" else: "up"
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let downkey = if useShift: "shiftdown" else: "down"
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let homekey = if useShift: "ctrlpageup" else: "pageup"
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let endkey = if useShift: "ctrlpagedown" else: "pagedown"
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ed.bindKey(upkey):
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let res = h.delta(-1)
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if res.isSome():
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ed.content = res.get()
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ed.redraw()
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ed.bindKey(downkey):
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let res = h.delta(1)
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if res.isSome():
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ed.content = res.get()
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ed.redraw()
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ed.bindKey(homekey):
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let res = h.toStart()
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if res.isSome():
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ed.content = res.get()
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ed.redraw()
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ed.bindKey(endKey):
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let res = h.toStart()
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if res.isSome():
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ed.content = res.get()
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ed.redraw()
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