Alexander/gomuks
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add some vim-style keybindings to advanced inputfields

Browse Source
This commit is contained in:
Tulir Asokan 2018-03-20 12:14:30 +02:00
parent cce1403822
commit de2a8aee06
1 changed files with 37 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
ui/widget/advanced-inputfield.go
View File

@ -68,6 +68,8 @@ type AdvancedInputField struct {
// disables masking.
maskCharacter rune
vimBindings bool
// An optional function which may reject the last character that was entered.
accept func(text string, ch rune) bool
@ -403,32 +405,46 @@ func (field *AdvancedInputField) InputHandler() func(event *tcell.EventKey, setF
break
}
leftPart := SubstringBefore(field.text, field.cursorOffset)
rightPart := field.text[len(leftPart):]
rightPartRunes := []rune(rightPart)
rightPartRunes = rightPartRunes[1:]
rightPart = string(rightPartRunes)
// Take everything after the left part minus the first character.
rightPart := string([]rune(field.text[len(leftPart):])[1:])
field.text = leftPart + rightPart
case tcell.KeyBackspace, tcell.KeyBackspace2: // Delete last character.
case tcell.KeyCtrlU:
if !field.vimBindings {
break
}
field.text = ""
field.cursorOffset = 0
case tcell.KeyCtrlW:
if !field.vimBindings {
break
}
fallthrough
case tcell.KeyBackspace: // Delete last word
leftPart := SubstringBefore(field.text, field.cursorOffset)
rightPart := field.text[len(leftPart):]
replacement := lastWord.ReplaceAllString(leftPart, "")
field.text = replacement + rightPart
field.cursorOffset -= runewidth.StringWidth(leftPart) - runewidth.StringWidth(replacement)
case tcell.KeyBackspace2: // Delete last character
if field.cursorOffset == 0 {
break
}
if key == tcell.KeyBackspace { // Ctrl+backspace
leftPart := SubstringBefore(field.text, field.cursorOffset)
rightPart := field.text[len(leftPart):]
replacement := lastWord.ReplaceAllString(leftPart, "")
field.text = replacement + rightPart
leftPart := SubstringBefore(field.text, field.cursorOffset)
rightPart := field.text[len(leftPart):]
field.cursorOffset -= runewidth.StringWidth(leftPart) - runewidth.StringWidth(replacement)
} else { // Just backspace
leftPart := SubstringBefore(field.text, field.cursorOffset)
rightPart := field.text[len(leftPart):]
leftPartRunes := []rune(leftPart)
leftPartRunes = leftPartRunes[0 : len(leftPartRunes)-1]
leftPart = string(leftPartRunes)
removedChar := field.text[len(leftPart) : len(field.text)-len(rightPart)]
field.text = leftPart + rightPart
field.cursorOffset -= runewidth.StringWidth(removedChar)
}
// Take everything before the right part minus the last character.
leftPartRunes := []rune(leftPart)
leftPartRunes = leftPartRunes[0 : len(leftPartRunes)-1]
leftPart = string(leftPartRunes)
// Figure out what character was removed to correctly decrease cursorOffset.
removedChar := field.text[len(leftPart) : len(field.text)-len(rightPart)]
field.text = leftPart + rightPart
field.cursorOffset -= runewidth.StringWidth(removedChar)
case tcell.KeyTab: // Tab-completion
if field.tabComplete != nil {
oldWidth := runewidth.StringWidth(field.text)