148 lines
3.1 KiB
Go
148 lines
3.1 KiB
Go
package widgets
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import (
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"os/exec"
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"github.com/gdamore/tcell"
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"github.com/mattn/go-runewidth"
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"git.sr.ht/~sircmpwn/aerc2/lib/ui"
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)
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type headerEditor struct {
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name string
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input *ui.TextInput
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}
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type Composer struct {
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headers struct {
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from *headerEditor
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subject *headerEditor
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to *headerEditor
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}
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editor *Terminal
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grid *ui.Grid
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focusable []ui.DrawableInteractive
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focused int
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}
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// TODO: Let caller configure headers, initial body (for replies), etc
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func NewComposer() *Composer {
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grid := ui.NewGrid().Rows([]ui.GridSpec{
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{ui.SIZE_EXACT, 3},
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{ui.SIZE_WEIGHT, 1},
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}).Columns([]ui.GridSpec{
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{ui.SIZE_WEIGHT, 1},
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})
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// TODO: let user specify extra headers to edit by default
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headers := ui.NewGrid().Rows([]ui.GridSpec{
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{ui.SIZE_EXACT, 1}, // To/From
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{ui.SIZE_EXACT, 1}, // Subject
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{ui.SIZE_EXACT, 1}, // [spacer]
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}).Columns([]ui.GridSpec{
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{ui.SIZE_WEIGHT, 1},
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{ui.SIZE_WEIGHT, 1},
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})
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to := newHeaderEditor("To", "")
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from := newHeaderEditor("From", "")
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subject := newHeaderEditor("Subject", "")
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headers.AddChild(to).At(0, 0)
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headers.AddChild(from).At(0, 1)
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headers.AddChild(subject).At(1, 0).Span(1, 2)
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headers.AddChild(ui.NewFill(' ')).At(2, 0).Span(1, 2)
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// TODO: built-in config option, $EDITOR, then vi, in that order
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// TODO: temp file
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editor := exec.Command("vim")
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term, _ := NewTerminal(editor)
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grid.AddChild(headers).At(0, 0)
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grid.AddChild(term).At(1, 0)
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return &Composer{
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grid: grid,
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editor: term,
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// You have to backtab to get to "From", since you usually don't edit it
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focused: 1,
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focusable: []ui.DrawableInteractive{
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from,
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to,
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subject,
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term,
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},
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}
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}
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func (c *Composer) Draw(ctx *ui.Context) {
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c.grid.Draw(ctx)
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}
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func (c *Composer) Invalidate() {
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c.grid.Invalidate()
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}
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func (c *Composer) OnInvalidate(fn func(d ui.Drawable)) {
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c.grid.OnInvalidate(func(_ ui.Drawable) {
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fn(c)
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})
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}
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func (c *Composer) Event(event tcell.Event) bool {
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return c.focusable[c.focused].Event(event)
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}
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func (c *Composer) Focus(focus bool) {
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c.focusable[c.focused].Focus(focus)
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}
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func (c *Composer) PrevField() {
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c.focusable[c.focused].Focus(false)
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c.focused--
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if c.focused == -1 {
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c.focused = len(c.focusable) - 1
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}
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c.focusable[c.focused].Focus(true)
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}
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func (c *Composer) NextField() {
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c.focusable[c.focused].Focus(false)
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c.focused = (c.focused + 1) % len(c.focusable)
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c.focusable[c.focused].Focus(true)
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}
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func newHeaderEditor(name string, value string) *headerEditor {
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return &headerEditor{
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input: ui.NewTextInput(value),
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name: name,
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}
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}
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func (he *headerEditor) Draw(ctx *ui.Context) {
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name := he.name + " "
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size := runewidth.StringWidth(name)
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ctx.Fill(0, 0, size, ctx.Height(), ' ', tcell.StyleDefault)
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ctx.Printf(0, 0, tcell.StyleDefault.Bold(true), "%s", name)
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he.input.Draw(ctx.Subcontext(size, 0, ctx.Width()-size, 1))
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}
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func (he *headerEditor) Invalidate() {
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he.input.Invalidate()
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}
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func (he *headerEditor) OnInvalidate(fn func(ui.Drawable)) {
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he.input.OnInvalidate(func(_ ui.Drawable) {
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fn(he)
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})
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}
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func (he *headerEditor) Focus(focused bool) {
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he.input.Focus(focused)
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}
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func (he *headerEditor) Event(event tcell.Event) bool {
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return he.input.Event(event)
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}
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