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package main
import (
"fmt"
"os"
"time"
"fyne.io/fyne/v2"
"fyne.io/fyne/v2/app"
"fyne.io/fyne/v2/container"
"fyne.io/fyne/v2/dialog"
"fyne.io/fyne/v2/widget"
)
const (
appId = "org.buetow.quicklogger"
placeholderText = "Enter text here..."
maxTextLength = 5000 // Limit text length to prevent performance issues
)
var (
defaultDirectory = "."
)
var windowSize = fyne.NewSize(400, 100)
func createPreferenceWindow(a fyne.App) fyne.Window {
window := a.NewWindow("Preferences")
directoryPreference := widget.NewEntry()
directoryPreference.SetText(a.Preferences().StringWithFallback("Directory", defaultDirectory))
window.SetContent(container.NewVBox(
container.NewVBox(
widget.NewLabel("Directory:"),
directoryPreference,
),
container.NewHBox(
widget.NewButton("Save", func() {
a.Preferences().SetString("Directory", directoryPreference.Text)
window.Hide()
}),
)))
window.Resize(windowSize)
return window
}
func createMainWindow(a fyne.App) fyne.Window {
// Create main window
window := a.NewWindow("Quick logger")
input := widget.NewMultiLineEntry()
// Optimization 1: Disable word wrapping on Android to improve performance
// Word wrapping causes expensive recalculations on every text change
if fyne.CurrentDevice().IsMobile() {
input.Wrapping = fyne.TextWrapOff
} else {
input.Wrapping = fyne.TextWrapWord
}
input.SetPlaceHolder(placeholderText)
// Optimization 2: Reduce visible rows on mobile to limit rendering area
if fyne.CurrentDevice().IsMobile() {
input.SetMinRowsVisible(10)
} else {
input.SetMinRowsVisible(30)
}
// Optimization 3: Add text length indicator
charCount := widget.NewLabel("0 chars")
// Optimization 4: Throttle text changes with validation
input.OnChanged = func(text string) {
// Update character count
charCount.SetText(fmt.Sprintf("%d chars", len(text)))
// Warn if text is getting too long
if len(text) > maxTextLength {
dialog.ShowInformation("Text Limit",
fmt.Sprintf("Text is getting long (%d chars). Consider logging to avoid performance issues.", len(text)),
window)
}
}
logTextButton := widget.NewButton("Log text", func() {
filename := fmt.Sprintf("%s/ql-%s.md",
a.Preferences().StringWithFallback("Directory", defaultDirectory),
time.Now().Format("060102-150405"),
)
if err := os.WriteFile(filename, []byte(input.Text), 0644); err != nil {
dialog.ShowError(err, window)
return
}
input.SetText("")
input.SetPlaceHolder(placeholderText)
// Reset character count
charCount.SetText("0 chars")
})
// Optimization 5: Add clear button for quick text clearing
clearButton := widget.NewButton("Clear", func() {
input.SetText("")
charCount.SetText("0 chars")
window.Canvas().Focus(input)
})
// If running on Android and shared text file exists, load it into the input
if fyne.CurrentDevice().IsMobile() {
if txt, err := readSharedFromCache(); err == nil && txt != "" {
input.SetText(txt)
charCount.SetText(fmt.Sprintf("%d chars", len(txt)))
}
}
window.SetContent(container.NewVBox(
input,
container.NewHBox(
logTextButton,
clearButton,
widget.NewButton("Preferences", func() {
createPreferenceWindow(a).Show()
}),
charCount, // Show character count
),
))
window.Resize(windowSize)
window.Canvas().Focus(input)
// On Android, also check for new shared text whenever app returns to foreground.
if lc := a.Lifecycle(); lc != nil {
lc.SetOnEnteredForeground(func() {
if txt, err := readSharedFromCache(); err == nil && txt != "" {
input.SetText(txt)
charCount.SetText(fmt.Sprintf("%d chars", len(txt)))
window.Canvas().Focus(input)
}
})
}
return window
}
func main() {
createMainWindow(app.NewWithID(appId)).ShowAndRun()
}
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