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package ui
import (
"encoding/json"
"os"
"path/filepath"
"time"
"fyne.io/fyne/v2"
"fyne.io/fyne/v2/canvas"
"fyne.io/fyne/v2/container"
"fyne.io/fyne/v2/dialog"
"fyne.io/fyne/v2/layout"
"fyne.io/fyne/v2/storage"
"fyne.io/fyne/v2/theme"
"fyne.io/fyne/v2/widget"
"github.com/shiv/assets"
)
const maxRecentProjects = 10
type RecentProject struct {
Path string `json:"path"`
LastOpen time.Time `json:"last_open"`
}
func ShowLaunchScreen(app fyne.App, onSelect func(projectPath string, w fyne.Window)) {
launchWin := app.NewWindow("Shiv")
applyTheme(app)
launchWin.Resize(fyne.NewSize(560, 420))
launchWin.CenterOnScreen()
launchWin.SetFixedSize(true)
var list *widget.List
var onDeleteBtn func(widget.ListItemID)
recents, _ := loadRecents()
list = widget.NewList(
func() int { return len(recents) },
func() fyne.CanvasObject {
return container.NewHBox(
widget.NewIcon(AppIcon("project")),
container.NewHBox(
widget.NewLabel("name"),
widget.NewLabel("date"),
),
layout.NewSpacer(),
widget.NewButtonWithIcon("", AppIcon("delete"), nil),
)
},
func(i widget.ListItemID, obj fyne.CanvasObject) {
hbox := obj.(*fyne.Container)
box := hbox.Objects[1].(*fyne.Container)
box.Objects[0].(*widget.Label).SetText(filepath.Base(recents[i].Path))
box.Objects[1].(*widget.Label).SetText(recents[i].LastOpen.Format("2006-01-02 15:04"))
box.Objects[1].(*widget.Label).Importance = widget.LowImportance
hbox.Objects[3].(*widget.Button).OnTapped = func() { onDeleteBtn(i) }
},
)
onDeleteBtn = func(i widget.ListItemID) {
deleteRecent(recents[i].Path)
recents, _ = loadRecents()
list.Refresh()
}
list.OnSelected = func(i widget.ListItemID) {
path := recents[i].Path
if _, err := os.Stat(path); err != nil {
dialog.ShowError(err, launchWin)
list.UnselectAll()
return
}
saveRecent(path)
onSelect(path, launchWin)
}
newBtn := widget.NewButtonWithIcon("New Project", theme.DocumentCreateIcon(), func() {
saveDialog := dialog.NewFileSave(func(writeCloser fyne.URIWriteCloser, err error) {
if err != nil || writeCloser == nil {
return
}
writeCloser.Close()
path := writeCloser.URI().Path()
saveRecent(path)
onSelect(path, launchWin)
}, launchWin)
saveDialog.SetFileName("untitled.shiv")
saveDialog.SetFilter(storage.NewExtensionFileFilter([]string{".shiv"}))
saveDialog.Show()
})
openBtn := widget.NewButtonWithIcon("Open Project", theme.FolderOpenIcon(), func() {
openDialog := dialog.NewFileOpen(func(readCloser fyne.URIReadCloser, err error) {
if err != nil || readCloser == nil {
return
}
readCloser.Close()
path := readCloser.URI().Path()
saveRecent(path)
onSelect(path, launchWin)
}, launchWin)
openDialog.SetFilter(storage.NewExtensionFileFilter([]string{".shiv"}))
openDialog.Show()
})
newBtn.Importance = widget.HighImportance
logo := canvas.NewImageFromResource(fyne.NewStaticResource("logo.png", assets.Logo))
logo.FillMode = canvas.ImageFillContain
logo.SetMinSize(fyne.NewSize(128, 128))
subtitle := widget.NewLabel("HTTP/HTTPS Proxy Ninja")
subtitle.Importance = widget.LowImportance
recentLabel := widget.NewLabel("Recent Projects")
recentLabel.TextStyle = fyne.TextStyle{Bold: true}
header := container.NewVBox(
container.NewCenter(logo),
container.NewCenter(subtitle),
widget.NewSeparator(),
)
buttons := container.NewGridWithColumns(2, newBtn, openBtn)
var content fyne.CanvasObject
if len(recents) == 0 {
empty := widget.NewLabel("No recent projects")
empty.Importance = widget.LowImportance
content = container.NewBorder(
container.NewVBox(header, recentLabel),
buttons,
nil, nil,
container.NewCenter(empty),
)
} else {
content = container.NewBorder(
container.NewVBox(header, recentLabel),
buttons,
nil, nil,
list,
)
}
launchWin.SetContent(container.NewPadded(content))
launchWin.Show()
}
func recentsPath() (string, error) {
configDir, err := os.UserConfigDir()
if err != nil {
return "", err
}
return filepath.Join(configDir, "shiv", "recent_projects.json"), nil
}
func loadRecents() ([]RecentProject, error) {
path, err := recentsPath()
if err != nil {
return nil, err
}
data, err := os.ReadFile(path)
if err != nil {
return nil, err
}
var recents []RecentProject
if err := json.Unmarshal(data, &recents); err != nil {
return nil, err
}
return recents, nil
}
func saveRecent(projectPath string) {
recents, _ := loadRecents()
filtered := recents[:0]
for _, recent := range recents {
if recent.Path != projectPath {
filtered = append(filtered, recent)
}
}
updated := append([]RecentProject{{Path: projectPath, LastOpen: time.Now()}}, filtered...)
if len(updated) > maxRecentProjects {
updated = updated[:maxRecentProjects]
}
path, err := recentsPath()
if err != nil {
return
}
data, err := json.Marshal(updated)
if err != nil {
return
}
os.WriteFile(path, data, 0o644)
}
func deleteRecent(projectPath string) {
os.Remove(projectPath)
recents, _ := loadRecents()
filtered := recents[:0]
for _, r := range recents {
if r.Path != projectPath {
filtered = append(filtered, r)
}
}
path, err := recentsPath()
if err != nil {
return
}
data, err := json.Marshal(filtered)
if err != nil {
return
}
os.WriteFile(path, data, 0o644)
}
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