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dunst-nctui.go
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dunst-nctui.go
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package main
import (
"bufio"
"fmt"
"math/rand"
"os"
"os/exec"
"time"
"github.com/charmbracelet/bubbles/key"
"github.com/charmbracelet/bubbles/list"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
var (
appStyle = lipgloss.NewStyle().Padding(0, 0)
titleStyle = lipgloss.NewStyle().
Foreground(lipgloss.Color("#FFFDF5")).
Background(lipgloss.Color("#25A065")).
Padding(0, 1)
statusMessageStyle = lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#04B575", Dark: "#04B575"}).
Render
)
type responseMsg struct{}
type item struct {
title string
description string
appName string
id int
}
func (i item) Title() string {
if i.appName != "" {
return i.title + " (" + i.appName + ")"
}
return i.title
}
func (i item) Description() string { return i.description }
func (i item) Id() int { return i.id }
func (i item) FilterValue() string { return i.title + i.description }
type listKeyMap struct {
toggleTitleBar key.Binding
toggleStatusBar key.Binding
togglePagination key.Binding
toggleHelpMenu key.Binding
}
func newListKeyMap() *listKeyMap {
return &listKeyMap{
toggleTitleBar: key.NewBinding(
key.WithKeys("T"),
key.WithHelp("T", "toggle title"),
),
toggleStatusBar: key.NewBinding(
key.WithKeys("S"),
key.WithHelp("S", "toggle status"),
),
togglePagination: key.NewBinding(
key.WithKeys("P"),
key.WithHelp("P", "toggle pagination"),
),
toggleHelpMenu: key.NewBinding(
key.WithKeys("H"),
key.WithHelp("H", "toggle help"),
),
}
}
type model struct {
sub chan struct{}
list list.Model
keys *listKeyMap
delegateKeys *delegateKeyMap
}
func getItems() []list.Item {
dunstctlHistory := getDunstctlHistory()
var items []list.Item
for _, it := range dunstctlHistory {
items = append(items, item{
title: it.Summary.Data,
description: it.Body.Data,
id: it.ID.Data,
appName: it.Appname.Data,
})
}
return items
}
func newModel() model {
var (
delegateKeys = newDelegateKeyMap()
listKeys = newListKeyMap()
)
// Make initial list of items
items := getItems()
// Setup list
delegate := newItemDelegate(delegateKeys)
notificationList := list.New(items, delegate, 0, 0)
notificationList.Title = "Notifications"
notificationList.Styles.Title = titleStyle
notificationList.AdditionalFullHelpKeys = func() []key.Binding {
return []key.Binding{
listKeys.toggleTitleBar,
listKeys.toggleStatusBar,
listKeys.togglePagination,
listKeys.toggleHelpMenu,
}
}
return model{
sub: make(chan struct{}),
list: notificationList,
keys: listKeys,
delegateKeys: delegateKeys,
}
}
func listenForActivity(sub chan struct{}) tea.Cmd {
return func() tea.Msg {
cmd := exec.Command("dbus-monitor", "path='/org/freedesktop/Notifications',type='signal',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'")
stdout, _ := cmd.StdoutPipe()
scanner := bufio.NewScanner(stdout)
go func() {
for scanner.Scan() {
// TODO: throttle
sub <- struct{}{}
}
}()
cmd.Start()
return cmd.Wait()
}
}
func waitForActivity(sub chan struct{}) tea.Cmd {
return func() tea.Msg {
return responseMsg(<-sub)
}
}
func (m model) Init() tea.Cmd {
return tea.Batch(
listenForActivity(m.sub),
waitForActivity(m.sub),
)
}
func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
var cmds []tea.Cmd
switch msg := msg.(type) {
case responseMsg:
newItems := getItems()
m.list.SetItems(newItems)
return m, waitForActivity(m.sub)
case tea.WindowSizeMsg:
h, v := appStyle.GetFrameSize()
m.list.SetSize(msg.Width-h, msg.Height-v)
case tea.KeyMsg:
// Don't match any of the keys below if we're actively filtering.
if m.list.FilterState() == list.Filtering {
break
}
switch {
case key.Matches(msg, m.keys.toggleTitleBar):
v := !m.list.ShowTitle()
m.list.SetShowTitle(v)
m.list.SetShowFilter(v)
m.list.SetFilteringEnabled(v)
return m, nil
case key.Matches(msg, m.keys.toggleStatusBar):
m.list.SetShowStatusBar(!m.list.ShowStatusBar())
return m, nil
case key.Matches(msg, m.keys.togglePagination):
m.list.SetShowPagination(!m.list.ShowPagination())
return m, nil
case key.Matches(msg, m.keys.toggleHelpMenu):
m.list.SetShowHelp(!m.list.ShowHelp())
return m, nil
}
}
// This will also call our delegate's update function.
newListModel, cmd := m.list.Update(msg)
m.list = newListModel
cmds = append(cmds, cmd)
return m, tea.Batch(cmds...)
}
func (m model) View() string {
return appStyle.Render(m.list.View())
}
func main() {
rand.Seed(time.Now().UTC().UnixNano())
if _, err := tea.NewProgram(newModel(), tea.WithAltScreen()).Run(); err != nil {
fmt.Println("Error running program:", err)
os.Exit(1)
}
}