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package main | ||
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import ( | ||
"fmt" | ||
"os" | ||
"time" | ||
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"github.com/charmbracelet/bubbles/help" | ||
"github.com/charmbracelet/bubbles/key" | ||
"github.com/charmbracelet/bubbles/stopwatch" | ||
tea "github.com/charmbracelet/bubbletea" | ||
) | ||
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type model struct { | ||
stopwatch stopwatch.Model | ||
keymap keymap | ||
help help.Model | ||
quitting bool | ||
} | ||
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type keymap struct { | ||
start key.Binding | ||
stop key.Binding | ||
reset key.Binding | ||
quit key.Binding | ||
} | ||
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func (m model) Init() tea.Cmd { | ||
return m.stopwatch.Init() | ||
} | ||
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func (m model) View() string { | ||
// Note: you could further customize the time output by getting the | ||
// duration from m.stopwatch.Elapsed(), which returns a time.Duration, and | ||
// skip m.stopwatch.View() altogether. | ||
s := m.stopwatch.View() + "\n" | ||
if !m.quitting { | ||
s = "Elapsed: " + s | ||
s += m.helpView() | ||
} | ||
return s | ||
} | ||
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func (m model) helpView() string { | ||
return "\n" + m.help.ShortHelpView([]key.Binding{ | ||
m.keymap.start, | ||
m.keymap.stop, | ||
m.keymap.reset, | ||
m.keymap.quit, | ||
}) | ||
} | ||
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func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) { | ||
switch msg := msg.(type) { | ||
case tea.KeyMsg: | ||
switch { | ||
case key.Matches(msg, m.keymap.quit): | ||
m.quitting = true | ||
return m, tea.Quit | ||
case key.Matches(msg, m.keymap.reset): | ||
return m, m.stopwatch.Reset() | ||
case key.Matches(msg, m.keymap.start, m.keymap.stop): | ||
m.keymap.stop.SetEnabled(!m.stopwatch.Running()) | ||
m.keymap.start.SetEnabled(m.stopwatch.Running()) | ||
return m, m.stopwatch.Toggle() | ||
} | ||
} | ||
var cmd tea.Cmd | ||
m.stopwatch, cmd = m.stopwatch.Update(msg) | ||
return m, cmd | ||
} | ||
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func main() { | ||
m := model{ | ||
stopwatch: stopwatch.NewWithInterval(time.Millisecond), | ||
keymap: keymap{ | ||
start: key.NewBinding( | ||
key.WithKeys("s"), | ||
key.WithHelp("s", "start"), | ||
), | ||
stop: key.NewBinding( | ||
key.WithKeys("s"), | ||
key.WithHelp("s", "stop"), | ||
), | ||
reset: key.NewBinding( | ||
key.WithKeys("r"), | ||
key.WithHelp("r", "reset"), | ||
), | ||
quit: key.NewBinding( | ||
key.WithKeys("ctrl+c", "q"), | ||
key.WithHelp("q", "quit"), | ||
), | ||
}, | ||
help: help.NewModel(), | ||
} | ||
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m.keymap.start.SetEnabled(false) | ||
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if err := tea.NewProgram(m).Start(); err != nil { | ||
fmt.Println("Oh no, it didn't work:", err) | ||
os.Exit(1) | ||
} | ||
} |