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# Print an error message and exit.

== code
#   instruction                     effective address                                                   register    displacement    immediate
# . op          subop               mod             rm32          base        index         scale       r32
# . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes

# write(out, "Error: "+msg+"\n") then stop(ed, 1)
error:  # ed: (addr exit-descriptor), out: fd or (addr stream byte), msg: (addr array byte)
    # . prologue
    55/push-ebp
    89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
    # write(out, "Error: ")
    # . . push args
    68/push  "Error: "/imm32
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           0xc/disp8       .                 # push *(ebp+12)
    # . . call
    e8/call  write/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # write(out, msg)
    # . . push args
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           0x10/disp8      .                 # push *(ebp+16)
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           0xc/disp8       .                 # push *(ebp+12)
    # . . call
    e8/call  write/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # write(out, "\n")
    # . . push args
    68/push  Newline/imm32
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           0xc/disp8       .                 # push *(ebp+12)
    # . . call
    e8/call  write/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # stop(ed, 1)
    # . . push args
    68/push  1/imm32
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
    # . . call
    e8/call  stop/disp32
    # should never get past this point
$error:dead-end:
    # . epilogue
    89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
    5d/pop-to-ebp
    c3/return

# . . vim:nowrap:textwidth=0
generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-07-08 23:20:19 +0000
tion.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
package widgets

import (
	"time"

	"github.com/gdamore/tcell"
	"github.com/mattn/go-runewidth"

	"git.sr.ht/~sircmpwn/aerc/lib/ui"
)

type StatusLine struct {
	ui.Invalidatable
	stack    []*StatusMessage
	fallback StatusMessage
	aerc     *Aerc
}

type StatusMessage struct {
	bg      tcell.Color
	fg      tcell.Color
	message string
}

func NewStatusLine() *StatusLine {
	return &StatusLine{
		fallback: StatusMessage{
			bg:      tcell.ColorDefault,
			fg:      tcell.ColorDefault,
			message: "Idle",
		},
	}
}

func (status *StatusLine) Invalidate() {
	status.DoInvalidate(status)
}

func (status *StatusLine) Draw(ctx *ui.Context) {
	line := &status.fallback
	if len(status.stack) != 0 {
		line = status.stack[len(status.stack)-1]
	}
	style := tcell.StyleDefault.
		Background(line.bg).Foreground(line.fg).Reverse(true)
	ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', style)
	pendingKeys := ""
	if status.aerc != nil {
		for _, pendingKey := range status.aerc.pendingKeys {
			pendingKeys += string(pendingKey.Rune)
		}
	}
	message := runewidth.FillRight(line.message, ctx.Width()-len(pendingKeys)-5)
	ctx.Printf(0, 0, style, "%s%s", message, pendingKeys)
}

func (status *StatusLine) Set(text string) *StatusMessage {
	status.fallback = StatusMessage{
		bg:      tcell.ColorDefault,
		fg:      tcell.ColorDefault,
		message: text,
	}
	status.Invalidate()
	return &status.fallback
}

func (status *StatusLine) Push(text string, expiry time.Duration) *StatusMessage {
	msg := &StatusMessage{
		bg:      tcell.ColorDefault,
		fg:      tcell.ColorDefault,
		message: text,
	}
	status.stack = append(status.stack, msg)
	go (func() {
		time.Sleep(expiry)
		for i, m := range status.stack {
			if m == msg {
				status.stack = append(status.stack[:i], status.stack[i+1:]...)
				break
			}
		}
		status.Invalidate()
	})()
	return msg
}

func (status *StatusLine) Expire() {
	status.stack = nil
}

func (status *StatusLine) SetAerc(aerc *Aerc) {
	status.aerc = aerc
}

func (msg *StatusMessage) Color(bg tcell.Color, fg tcell.Color) {
	msg.bg = bg
	msg.fg = fg
}
generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-07-08 23:20:18 +0000