32a16dcd8d
Add check for public keys of all message recipients (to, cc, and bcc) before sending the message. Adds an OnFocusLost callback to header editors to facilitate a callback for checking keys whenever a new recipient is added (OnChange results in too many keyring checks). Once encryption is initially set, the callbacks are registered. If a public key is not available for any recipient, encryption is turned off. However, notably, the callbacks are still registered meaning as s soon as the user removes the recipients with missing keys, encryption is turned back on. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Tested-by: Koni Marti <koni.marti@gmail.com>
528 lines
11 KiB
Go
528 lines
11 KiB
Go
package ui
|
|
|
|
import (
|
|
"math"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/gdamore/tcell/v2"
|
|
"github.com/mattn/go-runewidth"
|
|
|
|
"git.sr.ht/~rjarry/aerc/config"
|
|
"git.sr.ht/~rjarry/aerc/logging"
|
|
)
|
|
|
|
// TODO: Attach history providers
|
|
// TODO: scrolling
|
|
|
|
type TextInput struct {
|
|
Invalidatable
|
|
cells int
|
|
ctx *Context
|
|
focus bool
|
|
index int
|
|
password bool
|
|
prompt string
|
|
scroll int
|
|
text []rune
|
|
change []func(ti *TextInput)
|
|
focusLost []func(ti *TextInput)
|
|
tabcomplete func(s string) ([]string, string)
|
|
completions []string
|
|
prefix string
|
|
completeIndex int
|
|
completeDelay time.Duration
|
|
completeDebouncer *time.Timer
|
|
uiConfig config.UIConfig
|
|
}
|
|
|
|
// Creates a new TextInput. TextInputs will render a "textbox" in the entire
|
|
// context they're given, and process keypresses to build a string from user
|
|
// input.
|
|
func NewTextInput(text string, ui config.UIConfig) *TextInput {
|
|
return &TextInput{
|
|
cells: -1,
|
|
text: []rune(text),
|
|
index: len([]rune(text)),
|
|
uiConfig: ui,
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) Password(password bool) *TextInput {
|
|
ti.password = password
|
|
return ti
|
|
}
|
|
|
|
func (ti *TextInput) Prompt(prompt string) *TextInput {
|
|
ti.prompt = prompt
|
|
return ti
|
|
}
|
|
|
|
func (ti *TextInput) TabComplete(
|
|
tabcomplete func(s string) ([]string, string), d time.Duration) *TextInput {
|
|
ti.tabcomplete = tabcomplete
|
|
ti.completeDelay = d
|
|
return ti
|
|
}
|
|
|
|
func (ti *TextInput) String() string {
|
|
return string(ti.text)
|
|
}
|
|
|
|
func (ti *TextInput) StringLeft() string {
|
|
return string(ti.text[:ti.index])
|
|
}
|
|
|
|
func (ti *TextInput) StringRight() string {
|
|
return string(ti.text[ti.index:])
|
|
}
|
|
|
|
func (ti *TextInput) Set(value string) *TextInput {
|
|
ti.text = []rune(value)
|
|
ti.index = len(ti.text)
|
|
return ti
|
|
}
|
|
|
|
func (ti *TextInput) Invalidate() {
|
|
ti.DoInvalidate(ti)
|
|
}
|
|
|
|
func (ti *TextInput) Draw(ctx *Context) {
|
|
scroll := ti.scroll
|
|
if !ti.focus {
|
|
scroll = 0
|
|
} else {
|
|
ti.ensureScroll()
|
|
}
|
|
ti.ctx = ctx // gross
|
|
|
|
defaultStyle := ti.uiConfig.GetStyle(config.STYLE_DEFAULT)
|
|
ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', defaultStyle)
|
|
|
|
text := ti.text[scroll:]
|
|
sindex := ti.index - scroll
|
|
if ti.password {
|
|
x := ctx.Printf(0, 0, defaultStyle, "%s", ti.prompt)
|
|
cells := runewidth.StringWidth(string(text))
|
|
ctx.Fill(x, 0, cells, 1, '*', defaultStyle)
|
|
} else {
|
|
ctx.Printf(0, 0, defaultStyle, "%s%s", ti.prompt, string(text))
|
|
}
|
|
cells := runewidth.StringWidth(string(text[:sindex]) + ti.prompt)
|
|
if ti.focus {
|
|
ctx.SetCursor(cells, 0)
|
|
ti.drawPopover(ctx)
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) drawPopover(ctx *Context) {
|
|
if len(ti.completions) == 0 {
|
|
return
|
|
}
|
|
cmp := &completions{
|
|
options: ti.completions,
|
|
idx: ti.completeIndex,
|
|
stringLeft: ti.StringLeft(),
|
|
onSelect: func(idx int) {
|
|
ti.completeIndex = idx
|
|
ti.Invalidate()
|
|
},
|
|
onExec: func() {
|
|
ti.executeCompletion()
|
|
ti.invalidateCompletions()
|
|
ti.Invalidate()
|
|
},
|
|
onStem: func(stem string) {
|
|
ti.Set(ti.prefix + stem + ti.StringRight())
|
|
ti.Invalidate()
|
|
},
|
|
uiConfig: ti.uiConfig,
|
|
}
|
|
width := maxLen(ti.completions) + 3
|
|
height := len(ti.completions)
|
|
ctx.Popover(0, 0, width, height, cmp)
|
|
}
|
|
|
|
func (ti *TextInput) MouseEvent(localX int, localY int, event tcell.Event) {
|
|
switch event := event.(type) {
|
|
case *tcell.EventMouse:
|
|
switch event.Buttons() {
|
|
case tcell.Button1:
|
|
if localX >= len(ti.prompt)+1 && localX <= len(ti.text[ti.scroll:])+len(ti.prompt)+1 {
|
|
ti.index = localX - len(ti.prompt) - 1
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) Focus(focus bool) {
|
|
if ti.focus && !focus {
|
|
ti.onFocusLost()
|
|
}
|
|
ti.focus = focus
|
|
if focus && ti.ctx != nil {
|
|
cells := runewidth.StringWidth(string(ti.text[:ti.index]))
|
|
ti.ctx.SetCursor(cells+1, 0)
|
|
} else if !focus && ti.ctx != nil {
|
|
ti.ctx.HideCursor()
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) ensureScroll() {
|
|
if ti.ctx == nil {
|
|
return
|
|
}
|
|
w := ti.ctx.Width() - len(ti.prompt)
|
|
if ti.index >= ti.scroll+w {
|
|
ti.scroll = ti.index - w + 1
|
|
}
|
|
if ti.index < ti.scroll {
|
|
ti.scroll = ti.index
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) insert(ch rune) {
|
|
left := ti.text[:ti.index]
|
|
right := ti.text[ti.index:]
|
|
ti.text = append(left, append([]rune{ch}, right...)...)
|
|
ti.index++
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
ti.onChange()
|
|
}
|
|
|
|
func (ti *TextInput) deleteWord() {
|
|
if len(ti.text) == 0 || ti.index <= 0 {
|
|
return
|
|
}
|
|
separators := "/'\""
|
|
i := ti.index - 1
|
|
for i >= 0 && ti.text[i] == ' ' {
|
|
i--
|
|
}
|
|
if strings.ContainsRune(separators, ti.text[i]) {
|
|
for i >= 0 && strings.ContainsRune(separators, ti.text[i]) {
|
|
i--
|
|
}
|
|
} else {
|
|
separators += " "
|
|
for i >= 0 && !strings.ContainsRune(separators, ti.text[i]) {
|
|
i--
|
|
}
|
|
}
|
|
ti.text = append(ti.text[:i+1], ti.text[ti.index:]...)
|
|
ti.index = i + 1
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
ti.onChange()
|
|
}
|
|
|
|
func (ti *TextInput) deleteLineForward() {
|
|
if len(ti.text) == 0 || len(ti.text) == ti.index {
|
|
return
|
|
}
|
|
|
|
ti.text = ti.text[:ti.index]
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
ti.onChange()
|
|
}
|
|
|
|
func (ti *TextInput) deleteLineBackward() {
|
|
if len(ti.text) == 0 || ti.index == 0 {
|
|
return
|
|
}
|
|
|
|
ti.text = ti.text[ti.index:]
|
|
ti.index = 0
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
ti.onChange()
|
|
}
|
|
|
|
func (ti *TextInput) deleteChar() {
|
|
if len(ti.text) > 0 && ti.index != len(ti.text) {
|
|
ti.text = append(ti.text[:ti.index], ti.text[ti.index+1:]...)
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
ti.onChange()
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) backspace() {
|
|
if len(ti.text) > 0 && ti.index != 0 {
|
|
ti.text = append(ti.text[:ti.index-1], ti.text[ti.index:]...)
|
|
ti.index--
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
ti.onChange()
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) executeCompletion() {
|
|
if len(ti.completions) > 0 {
|
|
ti.Set(ti.prefix + ti.completions[ti.completeIndex] + ti.StringRight())
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) invalidateCompletions() {
|
|
ti.completions = nil
|
|
}
|
|
|
|
func (ti *TextInput) onChange() {
|
|
ti.updateCompletions()
|
|
for _, change := range ti.change {
|
|
change(ti)
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) onFocusLost() {
|
|
for _, focusLost := range ti.focusLost {
|
|
focusLost(ti)
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) updateCompletions() {
|
|
if ti.tabcomplete == nil {
|
|
// no completer
|
|
return
|
|
}
|
|
if ti.completeDebouncer == nil {
|
|
ti.completeDebouncer = time.AfterFunc(ti.completeDelay, func() {
|
|
defer logging.PanicHandler()
|
|
ti.showCompletions()
|
|
})
|
|
} else {
|
|
ti.completeDebouncer.Stop()
|
|
ti.completeDebouncer.Reset(ti.completeDelay)
|
|
}
|
|
}
|
|
|
|
func (ti *TextInput) showCompletions() {
|
|
if ti.tabcomplete == nil {
|
|
// no completer
|
|
return
|
|
}
|
|
ti.completions, ti.prefix = ti.tabcomplete(ti.StringLeft())
|
|
ti.completeIndex = -1
|
|
ti.Invalidate()
|
|
}
|
|
|
|
func (ti *TextInput) OnChange(onChange func(ti *TextInput)) {
|
|
ti.change = append(ti.change, onChange)
|
|
}
|
|
|
|
func (ti *TextInput) OnFocusLost(onFocusLost func(ti *TextInput)) {
|
|
ti.focusLost = append(ti.focusLost, onFocusLost)
|
|
}
|
|
|
|
func (ti *TextInput) Event(event tcell.Event) bool {
|
|
switch event := event.(type) {
|
|
case *tcell.EventKey:
|
|
switch event.Key() {
|
|
case tcell.KeyBackspace, tcell.KeyBackspace2:
|
|
ti.invalidateCompletions()
|
|
ti.backspace()
|
|
case tcell.KeyCtrlD, tcell.KeyDelete:
|
|
ti.invalidateCompletions()
|
|
ti.deleteChar()
|
|
case tcell.KeyCtrlB, tcell.KeyLeft:
|
|
ti.invalidateCompletions()
|
|
if ti.index > 0 {
|
|
ti.index--
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
}
|
|
case tcell.KeyCtrlF, tcell.KeyRight:
|
|
ti.invalidateCompletions()
|
|
if ti.index < len(ti.text) {
|
|
ti.index++
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
}
|
|
case tcell.KeyCtrlA, tcell.KeyHome:
|
|
ti.invalidateCompletions()
|
|
ti.index = 0
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
case tcell.KeyCtrlE, tcell.KeyEnd:
|
|
ti.invalidateCompletions()
|
|
ti.index = len(ti.text)
|
|
ti.ensureScroll()
|
|
ti.Invalidate()
|
|
case tcell.KeyCtrlK:
|
|
ti.invalidateCompletions()
|
|
ti.deleteLineForward()
|
|
case tcell.KeyCtrlW:
|
|
ti.invalidateCompletions()
|
|
ti.deleteWord()
|
|
case tcell.KeyCtrlU:
|
|
ti.invalidateCompletions()
|
|
ti.deleteLineBackward()
|
|
case tcell.KeyESC:
|
|
if ti.completions != nil {
|
|
ti.invalidateCompletions()
|
|
ti.Invalidate()
|
|
}
|
|
case tcell.KeyTab:
|
|
ti.showCompletions()
|
|
case tcell.KeyRune:
|
|
ti.invalidateCompletions()
|
|
ti.insert(event.Rune())
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
type completions struct {
|
|
options []string
|
|
stringLeft string
|
|
idx int
|
|
onSelect func(int)
|
|
onExec func()
|
|
onStem func(string)
|
|
uiConfig config.UIConfig
|
|
}
|
|
|
|
func maxLen(ss []string) int {
|
|
max := 0
|
|
for _, s := range ss {
|
|
l := runewidth.StringWidth(s)
|
|
if l > max {
|
|
max = l
|
|
}
|
|
}
|
|
return max
|
|
}
|
|
|
|
func (c *completions) Draw(ctx *Context) {
|
|
bg := c.uiConfig.GetStyle(config.STYLE_COMPLETION_DEFAULT)
|
|
gutter := c.uiConfig.GetStyle(config.STYLE_COMPLETION_GUTTER)
|
|
pill := c.uiConfig.GetStyle(config.STYLE_COMPLETION_PILL)
|
|
sel := c.uiConfig.GetStyleSelected(config.STYLE_COMPLETION_DEFAULT)
|
|
|
|
ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', bg)
|
|
|
|
numVisible := ctx.Height()
|
|
startIdx := 0
|
|
if len(c.options) > numVisible && c.idx+1 > numVisible {
|
|
startIdx = c.idx - (numVisible - 1)
|
|
}
|
|
endIdx := startIdx + numVisible - 1
|
|
|
|
for idx, opt := range c.options {
|
|
if idx < startIdx {
|
|
continue
|
|
}
|
|
if idx > endIdx {
|
|
continue
|
|
}
|
|
if c.idx == idx {
|
|
ctx.Fill(0, idx-startIdx, ctx.Width(), 1, ' ', sel)
|
|
ctx.Printf(0, idx-startIdx, sel, " %s ", opt)
|
|
} else {
|
|
ctx.Printf(0, idx-startIdx, bg, " %s ", opt)
|
|
}
|
|
}
|
|
|
|
percentVisible := float64(numVisible) / float64(len(c.options))
|
|
if percentVisible >= 1.0 {
|
|
return
|
|
}
|
|
|
|
// gutter
|
|
ctx.Fill(ctx.Width()-1, 0, 1, ctx.Height(), ' ', gutter)
|
|
|
|
pillSize := int(math.Ceil(float64(ctx.Height()) * percentVisible))
|
|
percentScrolled := float64(startIdx) / float64(len(c.options))
|
|
pillOffset := int(math.Floor(float64(ctx.Height()) * percentScrolled))
|
|
ctx.Fill(ctx.Width()-1, pillOffset, 1, pillSize, ' ', pill)
|
|
}
|
|
|
|
func (c *completions) next() {
|
|
idx := c.idx
|
|
idx++
|
|
if idx > len(c.options)-1 {
|
|
idx = -1
|
|
}
|
|
c.onSelect(idx)
|
|
}
|
|
|
|
func (c *completions) prev() {
|
|
idx := c.idx
|
|
idx--
|
|
if idx < -1 {
|
|
idx = len(c.options) - 1
|
|
}
|
|
c.onSelect(idx)
|
|
}
|
|
|
|
func (c *completions) Event(e tcell.Event) bool {
|
|
switch e := e.(type) {
|
|
case *tcell.EventKey:
|
|
switch e.Key() {
|
|
case tcell.KeyTab:
|
|
if len(c.options) == 1 && c.idx >= 0 {
|
|
c.onExec()
|
|
} else {
|
|
stem := findStem(c.options)
|
|
if stem != "" && stem != c.stringLeft {
|
|
c.onStem(stem)
|
|
} else {
|
|
c.next()
|
|
}
|
|
}
|
|
return true
|
|
case tcell.KeyCtrlN, tcell.KeyDown:
|
|
c.next()
|
|
return true
|
|
case tcell.KeyBacktab, tcell.KeyCtrlP, tcell.KeyUp:
|
|
c.prev()
|
|
return true
|
|
case tcell.KeyEnter:
|
|
if c.idx >= 0 {
|
|
c.onExec()
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func findStem(words []string) string {
|
|
if len(words) <= 0 {
|
|
return ""
|
|
}
|
|
if len(words) == 1 {
|
|
return words[0]
|
|
}
|
|
var stem string
|
|
stemLen := 1
|
|
firstWord := []rune(words[0])
|
|
for {
|
|
if len(firstWord) < stemLen {
|
|
return stem
|
|
}
|
|
var r rune = firstWord[stemLen-1]
|
|
for _, word := range words[1:] {
|
|
runes := []rune(word)
|
|
if len(runes) < stemLen {
|
|
return stem
|
|
}
|
|
if runes[stemLen-1] != r {
|
|
return stem
|
|
}
|
|
}
|
|
stem = stem + string(r)
|
|
stemLen++
|
|
}
|
|
}
|
|
|
|
func (c *completions) Focus(_ bool) {}
|
|
|
|
func (c *completions) Invalidate() {}
|
|
|
|
func (c *completions) OnInvalidate(_ func(Drawable)) {}
|