aerc/widgets/aerc.go -rw-r--r-- 10.3 KiB View raw
                                                                                
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package widgets

import (
	"errors"
	"io"
	"log"
	"net/url"
	"strings"
	"time"

	"github.com/gdamore/tcell"
	"github.com/google/shlex"

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

type Aerc struct {
	accounts    map[string]*AccountView
	cmd         func(cmd []string) error
	cmdHistory  lib.History
	complete    func(cmd string) []string
	conf        *config.AercConfig
	focused     ui.Interactive
	grid        *ui.Grid
	logger      *log.Logger
	simulating  int
	statusbar   *ui.Stack
	statusline  *StatusLine
	pendingKeys []config.KeyStroke
	prompts     *ui.Stack
	tabs        *ui.Tabs
	beep        func() error
}

func NewAerc(conf *config.AercConfig, logger *log.Logger,
1 reference
cmd func(cmd []string) error, complete func(cmd string) []string, cmdHistory lib.History) *Aerc { tabs := ui.NewTabs() statusbar := ui.NewStack() statusline := NewStatusLine() statusbar.Push(statusline) grid := ui.NewGrid().Rows([]ui.GridSpec{ {ui.SIZE_EXACT, 1}, {ui.SIZE_WEIGHT, 1}, {ui.SIZE_EXACT, 1}, }).Columns([]ui.GridSpec{ {ui.SIZE_WEIGHT, 1}, }) grid.AddChild(tabs.TabStrip) grid.AddChild(tabs.TabContent).At(1, 0) grid.AddChild(statusbar).At(2, 0) aerc := &Aerc{ accounts: make(map[string]*AccountView), conf: conf, cmd: cmd, cmdHistory: cmdHistory, complete: complete, grid: grid, logger: logger, statusbar: statusbar, statusline: statusline, prompts: ui.NewStack(), tabs: tabs, } statusline.SetAerc(aerc) conf.Triggers.ExecuteCommand = cmd for i, acct := range conf.Accounts { view := NewAccountView(aerc, conf, &conf.Accounts[i], logger, aerc) aerc.accounts[acct.Name] = view tabs.Add(view, acct.Name) } if len(conf.Accounts) == 0 { wizard := NewAccountWizard(aerc.Config(), aerc) wizard.Focus(true) aerc.NewTab(wizard, "New account") } tabs.CloseTab = func(index int) { switch content := aerc.tabs.Tabs[index].Content.(type) { case *AccountView: return case *AccountWizard: return case *Composer: aerc.RemoveTab(content) content.Close() case *Terminal: content.Close(nil) case *MessageViewer: aerc.RemoveTab(content) } } return aerc } func (aerc *Aerc) OnBeep(f func() error) { aerc.beep = f } func (aerc *Aerc) Beep() { if aerc.beep == nil { aerc.logger.Printf("should beep, but no beeper") return } if err := aerc.beep(); err != nil { aerc.logger.Printf("tried to beep, but could not: %v", err) } } func (aerc *Aerc) Tick() bool {
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more := false for _, acct := range aerc.accounts { more = acct.Tick() || more } if len(aerc.prompts.Children()) > 0 { more = true previous := aerc.focused prompt := aerc.prompts.Pop().(*ExLine) prompt.finish = func() { aerc.statusbar.Pop() aerc.focus(previous) } aerc.statusbar.Push(prompt) aerc.focus(prompt) } return more } func (aerc *Aerc) Children() []ui.Drawable { return aerc.grid.Children() } func (aerc *Aerc) OnInvalidate(onInvalidate func(d ui.Drawable)) { aerc.grid.OnInvalidate(func(_ ui.Drawable) { onInvalidate(aerc) }) } func (aerc *Aerc) Invalidate() { aerc.grid.Invalidate() } func (aerc *Aerc) Focus(focus bool) { // who cares } func (aerc *Aerc) Draw(ctx *ui.Context) { aerc.grid.Draw(ctx) } func (aerc *Aerc) getBindings() *config.KeyBindings {
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switch view := aerc.SelectedTab().(type) { case *AccountView: return aerc.conf.Bindings.MessageList case *AccountWizard: return aerc.conf.Bindings.AccountWizard 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 } case *MessageViewer: return aerc.conf.Bindings.MessageView case *Terminal: return aerc.conf.Bindings.Terminal default: return aerc.conf.Bindings.Global } } func (aerc *Aerc) simulate(strokes []config.KeyStroke) {
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aerc.pendingKeys = []config.KeyStroke{} aerc.simulating += 1 for _, stroke := range strokes { simulated := tcell.NewEventKey( stroke.Key, stroke.Rune, tcell.ModNone) aerc.Event(simulated) } aerc.simulating -= 1 } func (aerc *Aerc) Event(event tcell.Event) bool {
1 reference
if aerc.focused != nil { return aerc.focused.Event(event) } switch event := event.(type) { case *tcell.EventKey: aerc.statusline.Expire() aerc.pendingKeys = append(aerc.pendingKeys, config.KeyStroke{ Key: event.Key(), Rune: event.Rune(), }) aerc.statusline.Invalidate() bindings := aerc.getBindings() incomplete := false result, strokes := bindings.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 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 } interactive, ok := aerc.tabs.Tabs[aerc.tabs.Selected].Content.(ui.Interactive) if ok { return interactive.Event(event) } return false } case *tcell.EventMouse: if event.Buttons() == tcell.ButtonNone { return false } x, y := event.Position() aerc.grid.MouseEvent(x, y, event) return true } return false } func (aerc *Aerc) Config() *config.AercConfig {
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return aerc.conf } func (aerc *Aerc) Logger() *log.Logger {
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return aerc.logger } func (aerc *Aerc) SelectedAccount() *AccountView {
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switch tab := aerc.SelectedTab().(type) { case *AccountView: return tab case *MessageViewer: return tab.SelectedAccount() } return nil } func (aerc *Aerc) SelectedTab() ui.Drawable {
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return aerc.tabs.Tabs[aerc.tabs.Selected].Content } func (aerc *Aerc) NewTab(clickable ui.Drawable, name string) *ui.Tab {
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tab := aerc.tabs.Add(clickable, name) aerc.tabs.Select(len(aerc.tabs.Tabs) - 1) return tab } func (aerc *Aerc) RemoveTab(tab ui.Drawable) {
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aerc.tabs.Remove(tab) } func (aerc *Aerc) ReplaceTab(tabSrc ui.Drawable, tabTarget ui.Drawable, name string) {
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aerc.tabs.Replace(tabSrc, tabTarget, name) } func (aerc *Aerc) NextTab() {
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aerc.tabs.NextTab() } func (aerc *Aerc) PrevTab() {
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aerc.tabs.PrevTab() } func (aerc *Aerc) SelectTab(name string) bool {
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for i, tab := range aerc.tabs.Tabs { if tab.Name == name { aerc.tabs.Select(i) return true } } return false } func (aerc *Aerc) SelectTabIndex(index int) bool {
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for i := range aerc.tabs.Tabs { if i == index { aerc.tabs.Select(i) return true } } return false } func (aerc *Aerc) TabNames() []string {
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var names []string for _, tab := range aerc.tabs.Tabs { names = append(names, tab.Name) } return names } func (aerc *Aerc) SelectPreviousTab() bool {
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return aerc.tabs.SelectPrevious() } // TODO: Use per-account status lines, but a global ex line func (aerc *Aerc) SetStatus(status string) *StatusMessage {
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return aerc.statusline.Set(status) } func (aerc *Aerc) PushStatus(text string, expiry time.Duration) *StatusMessage {
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return aerc.statusline.Push(text, expiry) } func (aerc *Aerc) PushError(text string) {
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aerc.PushStatus(text, 10*time.Second).Color(tcell.ColorDefault, tcell.ColorRed) } func (aerc *Aerc) focus(item ui.Interactive) {
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if aerc.focused == item { return } if aerc.focused != nil { aerc.focused.Focus(false) } aerc.focused = item interactive, ok := aerc.tabs.Tabs[aerc.tabs.Selected].Content.(ui.Interactive) if item != nil { item.Focus(true) if ok { interactive.Focus(false) } } else { if ok { interactive.Focus(true) } } } func (aerc *Aerc) BeginExCommand() {
1 reference
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). Color(tcell.ColorDefault, tcell.ColorRed) } // only add to history if this is an unsimulated command, // ie one not executed from a keybinding if aerc.simulating == 0 { aerc.cmdHistory.Add(cmd) } }, func() { aerc.statusbar.Pop() aerc.focus(previous) }, func(cmd string) []string { return aerc.complete(cmd) }, aerc.cmdHistory) aerc.statusbar.Push(exline) aerc.focus(exline) } func (aerc *Aerc) RegisterPrompt(prompt string, cmd []string) {
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p := NewPrompt(prompt, func(text string) { if text != "" { cmd = append(cmd, text) } err := aerc.cmd(cmd) if err != nil { aerc.PushStatus(" "+err.Error(), 10*time.Second). Color(tcell.ColorDefault, tcell.ColorRed) } }, func(cmd string) []string { return nil // TODO: completions }) aerc.prompts.Push(p) } func (aerc *Aerc) Mailto(addr *url.URL) error {
1 reference
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, err := NewComposer(aerc, aerc.Config(), acct.AccountConfig(), acct.Worker(), "", defaults) if err != nil { return nil } 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 } func (aerc *Aerc) CloseBackends() error {
1 reference
var returnErr error for _, acct := range aerc.accounts { var raw interface{} = acct.worker.Backend c, ok := raw.(io.Closer) if !ok { continue } err := c.Close() if err != nil { returnErr = err aerc.logger.Printf("Closing backend failed for %v: %v\n", acct.Name(), err) } } return returnErr }