68 lines
1.2 KiB
Go
68 lines
1.2 KiB
Go
package prompt
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// KeyBindFunc receives buffer and processed it.
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type KeyBindFunc func(*Buffer)
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// KeyBind represents which key should do what operation.
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type KeyBind struct {
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Key Key
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Fn KeyBindFunc
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}
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// KeyBindMode to switch a key binding flexibly.
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type KeyBindMode string
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const (
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// CommonKeyBind is a mode without any keyboard shortcut
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CommonKeyBind KeyBindMode = "common"
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// EmacsKeyBind is a mode to use emacs-like keyboard shortcut
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EmacsKeyBind KeyBindMode = "emacs"
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)
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var commonKeyBindings = []KeyBind{
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// Go to the End of the line
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{
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Key: End,
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Fn: func(buf *Buffer) {
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x := []rune(buf.Document().TextAfterCursor())
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buf.CursorRight(len(x))
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},
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},
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// Go to the beginning of the line
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{
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Key: Home,
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Fn: func(buf *Buffer) {
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x := []rune(buf.Document().TextBeforeCursor())
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buf.CursorLeft(len(x))
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},
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},
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// Delete character under the cursor
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{
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Key: Delete,
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Fn: func(buf *Buffer) {
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buf.Delete(1)
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},
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},
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// Backspace
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{
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Key: Backspace,
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Fn: func(buf *Buffer) {
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buf.DeleteBeforeCursor(1)
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},
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},
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// Right allow: Forward one character
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{
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Key: Right,
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Fn: func(buf *Buffer) {
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buf.CursorRight(1)
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},
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},
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// Left allow: Backward one character
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{
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Key: Left,
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Fn: func(buf *Buffer) {
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buf.CursorLeft(1)
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},
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},
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}
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