aerc/widgets/aerc.go

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package widgets
import (
"errors"
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"log"
"net/url"
"strings"
"time"
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"github.com/gdamore/tcell"
"github.com/google/shlex"
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"git.sr.ht/~sircmpwn/aerc/config"
"git.sr.ht/~sircmpwn/aerc/lib/ui"
libui "git.sr.ht/~sircmpwn/aerc/lib/ui"
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)
type Aerc struct {
accounts map[string]*AccountView
cmd func(cmd []string) error
complete func(cmd string) []string
conf *config.AercConfig
focused libui.Interactive
grid *libui.Grid
logger *log.Logger
simulating int
statusbar *libui.Stack
statusline *StatusLine
pendingKeys []config.KeyStroke
tabs *libui.Tabs
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}
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func NewAerc(conf *config.AercConfig, logger *log.Logger,
cmd func(cmd []string) error, complete func(cmd string) []string) *Aerc {
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tabs := libui.NewTabs()
statusbar := ui.NewStack()
statusline := NewStatusLine()
statusbar.Push(statusline)
grid := libui.NewGrid().Rows([]libui.GridSpec{
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{libui.SIZE_EXACT, 1},
{libui.SIZE_WEIGHT, 1},
{libui.SIZE_EXACT, 1},
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}).Columns([]libui.GridSpec{
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{libui.SIZE_WEIGHT, 1},
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})
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grid.AddChild(tabs.TabStrip)
grid.AddChild(tabs.TabContent).At(1, 0)
grid.AddChild(statusbar).At(2, 0)
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aerc := &Aerc{
accounts: make(map[string]*AccountView),
conf: conf,
cmd: cmd,
complete: complete,
grid: grid,
logger: logger,
statusbar: statusbar,
statusline: statusline,
tabs: tabs,
}
statusline.SetAerc(aerc)
conf.Triggers.ExecuteCommand = cmd
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for i, acct := range conf.Accounts {
view := NewAccountView(conf, &conf.Accounts[i], logger, aerc)
aerc.accounts[acct.Name] = view
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tabs.Add(view, acct.Name)
}
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if len(conf.Accounts) == 0 {
wizard := NewAccountWizard(aerc.Config(), aerc)
wizard.Focus(true)
aerc.NewTab(wizard, "New account")
}
return aerc
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}
func (aerc *Aerc) Tick() bool {
more := false
for _, acct := range aerc.accounts {
more = acct.Tick() || more
}
return more
}
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func (aerc *Aerc) Children() []ui.Drawable {
return aerc.grid.Children()
}
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func (aerc *Aerc) OnInvalidate(onInvalidate func(d libui.Drawable)) {
aerc.grid.OnInvalidate(func(_ libui.Drawable) {
onInvalidate(aerc)
})
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}
func (aerc *Aerc) Invalidate() {
aerc.grid.Invalidate()
}
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func (aerc *Aerc) Focus(focus bool) {
// who cares
}
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func (aerc *Aerc) Draw(ctx *libui.Context) {
aerc.grid.Draw(ctx)
}
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func (aerc *Aerc) getBindings() *config.KeyBindings {
switch view := aerc.SelectedTab().(type) {
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case *AccountView:
return aerc.conf.Bindings.MessageList
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case *AccountWizard:
return aerc.conf.Bindings.AccountWizard
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case *Composer:
switch view.Bindings() {
case "compose::editor":
return aerc.conf.Bindings.ComposeEditor
case "compose::review":
return aerc.conf.Bindings.ComposeReview
default:
return aerc.conf.Bindings.Compose
}
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case *MessageViewer:
return aerc.conf.Bindings.MessageView
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case *Terminal:
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return aerc.conf.Bindings.Terminal
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default:
return aerc.conf.Bindings.Global
}
}
func (aerc *Aerc) simulate(strokes []config.KeyStroke) {
aerc.pendingKeys = []config.KeyStroke{}
aerc.simulating += 1
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for _, stroke := range strokes {
simulated := tcell.NewEventKey(
stroke.Key, stroke.Rune, tcell.ModNone)
aerc.Event(simulated)
}
aerc.simulating -= 1
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}
func (aerc *Aerc) Event(event tcell.Event) bool {
if aerc.focused != nil {
return aerc.focused.Event(event)
}
switch event := event.(type) {
case *tcell.EventKey:
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aerc.statusline.Expire()
aerc.pendingKeys = append(aerc.pendingKeys, config.KeyStroke{
Key: event.Key(),
Rune: event.Rune(),
})
aerc.statusline.Invalidate()
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bindings := aerc.getBindings()
incomplete := false
result, strokes := bindings.GetBinding(aerc.pendingKeys)
switch result {
case config.BINDING_FOUND:
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aerc.simulate(strokes)
return true
case config.BINDING_INCOMPLETE:
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incomplete = true
case config.BINDING_NOT_FOUND:
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}
if bindings.Globals {
result, strokes = aerc.conf.Bindings.Global.
GetBinding(aerc.pendingKeys)
switch result {
case config.BINDING_FOUND:
aerc.simulate(strokes)
return true
case config.BINDING_INCOMPLETE:
incomplete = true
case config.BINDING_NOT_FOUND:
}
}
if !incomplete {
aerc.pendingKeys = []config.KeyStroke{}
exKey := bindings.ExKey
if aerc.simulating > 0 {
// Keybindings still use : even if you change the ex key
exKey = aerc.conf.Bindings.Global.ExKey
}
if event.Key() == exKey.Key && event.Rune() == exKey.Rune {
aerc.BeginExCommand()
return true
}
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interactive, ok := aerc.tabs.Tabs[aerc.tabs.Selected].Content.(ui.Interactive)
if ok {
return interactive.Event(event)
}
return false
}
case *tcell.EventMouse:
aerc.tabs.MouseEvent(event)
}
return false
}
func (aerc *Aerc) Config() *config.AercConfig {
return aerc.conf
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}
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func (aerc *Aerc) Logger() *log.Logger {
return aerc.logger
}
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func (aerc *Aerc) SelectedAccount() *AccountView {
acct, ok := aerc.accounts[aerc.tabs.Tabs[aerc.tabs.Selected].Name]
if !ok {
return nil
}
return acct
}
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func (aerc *Aerc) SelectedTab() ui.Drawable {
return aerc.tabs.Tabs[aerc.tabs.Selected].Content
}
func (aerc *Aerc) NewTab(drawable ui.Drawable, name string) *ui.Tab {
tab := aerc.tabs.Add(drawable, name)
aerc.tabs.Select(len(aerc.tabs.Tabs) - 1)
return tab
}
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func (aerc *Aerc) RemoveTab(tab ui.Drawable) {
aerc.tabs.Remove(tab)
}
func (aerc *Aerc) ReplaceTab(tabSrc ui.Drawable, tabTarget ui.Drawable, name string) {
aerc.tabs.Replace(tabSrc, tabTarget, name)
}
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func (aerc *Aerc) NextTab() {
next := aerc.tabs.Selected + 1
if next >= len(aerc.tabs.Tabs) {
next = 0
}
aerc.tabs.Select(next)
}
func (aerc *Aerc) PrevTab() {
next := aerc.tabs.Selected - 1
if next < 0 {
next = len(aerc.tabs.Tabs) - 1
}
aerc.tabs.Select(next)
}
func (aerc *Aerc) SelectTab(name string) bool {
for i, tab := range aerc.tabs.Tabs {
if tab.Name == name {
aerc.tabs.Select(i)
return true
}
}
return false
}
func (aerc *Aerc) TabNames() []string {
var names []string
for _, tab := range aerc.tabs.Tabs {
names = append(names, tab.Name)
}
return names
}
func (aerc *Aerc) SelectPreviousTab() bool {
return aerc.tabs.SelectPrevious()
}
// TODO: Use per-account status lines, but a global ex line
func (aerc *Aerc) SetStatus(status string) *StatusMessage {
return aerc.statusline.Set(status)
}
func (aerc *Aerc) PushStatus(text string, expiry time.Duration) *StatusMessage {
return aerc.statusline.Push(text, expiry)
}
func (aerc *Aerc) PushError(text string) {
aerc.PushStatus(text, 10*time.Second).Color(tcell.ColorDefault, tcell.ColorRed)
}
func (aerc *Aerc) focus(item libui.Interactive) {
if aerc.focused == item {
return
}
if aerc.focused != nil {
aerc.focused.Focus(false)
}
aerc.focused = item
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interactive, ok := aerc.tabs.Tabs[aerc.tabs.Selected].Content.(ui.Interactive)
if item != nil {
item.Focus(true)
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if ok {
interactive.Focus(false)
}
} else {
if ok {
interactive.Focus(true)
}
}
}
func (aerc *Aerc) BeginExCommand() {
previous := aerc.focused
exline := NewExLine(func(cmd string) {
parts, err := shlex.Split(cmd)
if err != nil {
aerc.PushStatus(" "+err.Error(), 10*time.Second).
Color(tcell.ColorDefault, tcell.ColorRed)
}
err = aerc.cmd(parts)
if err != nil {
aerc.PushStatus(" "+err.Error(), 10*time.Second).
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Color(tcell.ColorDefault, tcell.ColorRed)
}
aerc.statusbar.Pop()
aerc.focus(previous)
}, func() {
aerc.statusbar.Pop()
aerc.focus(previous)
}, func(cmd string) []string {
return aerc.complete(cmd)
})
aerc.statusbar.Push(exline)
aerc.focus(exline)
}
func (aerc *Aerc) Mailto(addr *url.URL) error {
acct := aerc.SelectedAccount()
if acct == nil {
return errors.New("No account selected")
}
defaults := make(map[string]string)
defaults["To"] = addr.Opaque
headerMap := map[string]string{
"cc": "Cc",
"in-reply-to": "In-Reply-To",
"subject": "Subject",
}
for key, vals := range addr.Query() {
if header, ok := headerMap[strings.ToLower(key)]; ok {
defaults[header] = strings.Join(vals, ",")
}
}
composer := NewComposer(aerc.Config(),
acct.AccountConfig(), acct.Worker(), defaults)
composer.FocusSubject()
title := "New email"
if subj, ok := defaults["Subject"]; ok {
title = subj
composer.FocusTerminal()
}
tab := aerc.NewTab(composer, title)
composer.OnHeaderChange("Subject", func(subject string) {
if subject == "" {
tab.Name = "New email"
} else {
tab.Name = subject
}
tab.Content.Invalidate()
})
return nil
}