ZacharyZhang-NYandClaude Opus 5.5
03e1f91706
Elements are now pass-scoped value handles: tests that read bounds after a frame bind a ui.Handle. pixel tells frames apart by the build pass's root, since the Tester clock no longer moves on its own. Fix the regressions the upgrade brought: - Clipboard reads in input handlers go through c.Services(). - MyGo notes an overlay's opener after building it, so AutoFocus inside lost it; pixel.AutoFocus focuses through a Handle, and archtest bans the raw call. Dialogs hand the focus back again. - Elements around a press stay hovered: Tooltip tells a press-given focus by focus arriving under the pointer. - The web host moves the Tester clock with real time, at most 500 ms a call, and gives components the real clock. The gallery's source index also accepts CRLF checkouts. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
102 lines
2.9 KiB
Go
102 lines
2.9 KiB
Go
package files
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import (
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"fmt"
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"log/slog"
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"strconv"
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"strings"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/data"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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// Dir is a named folder of folders and files.
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type Dir struct {
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Name string
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Dirs []Dir
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Files []File
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}
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type FileExplorerOptions struct {
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// Height is the file list's in dots; zero means 120.
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Height int
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Disabled bool
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}
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type FileExplorerResult struct {
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Element ui.Element
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// Opened is Enter or a double click on a file.
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Changed, Opened bool
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}
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// FileExplorer sets the folder tree beside the chosen folder's files.
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func FileExplorer(c *ui.Context, text string, root Dir, path *string, file *int, o FileExplorerOptions) FileExplorerResult {
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k := pixel.K(c)
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dir, ok := folderAt(root, *path)
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if !ok {
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panic(fmt.Sprintf("files: FileExplorer has no folder at %q", *path))
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}
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pick("FileExplorer", file, len(dir.Files))
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h := pixel.Or("FileExplorer Height", o.Height, 120)
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tree, tw := node(root, 0)
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var res FileExplorerResult
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res.Element = ui.Row(c).FillWidth().Gap(k.D(4)).AlignItems(ui.Start).Role(ui.RoleGroup).Label(text).Children(func() {
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old := *path
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data.Tree(c, k.Msg("folders"), []data.TreeNode{tree}, path, data.TreeOptions{Width: tw, Disabled: o.Disabled})
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if *path != old {
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// A new folder starts with no file chosen.
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dir, _ = folderAt(root, *path)
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*file, res.Changed = -1, true
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slog.Debug("8bit: file explorer folder", "label", text, "path", *path)
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}
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files := dir.Files
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for _, f := range files {
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check("FileExplorer", f)
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}
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l := data.List(c, dir.Name, len(files), file, data.ListOptions{Height: h, Disabled: o.Disabled}, func(i int) string { return files[i].Name }, func(i int) {
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row(c, k, files[i], func() { pixel.Text(c, size(files[i].Size), pixel.TextOptions{Slot: pixel.Faint}) })
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})
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l.Element.Grow(1)
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res.Changed = res.Changed || l.Changed
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res.Opened = l.Submitted && *file >= 0
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})
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if res.Opened {
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slog.Debug("8bit: file explorer open", "label", text, "file", *file)
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}
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return res
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}
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// node makes a folder's tree and the width it needs.
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func node(f Dir, depth int) (data.TreeNode, int) {
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if f.Name == "" {
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panic("files: FileExplorer has a folder with no name")
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}
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// data.Tree indents ten dots a level; the arrow takes twelve.
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n, w := data.TreeNode{Label: f.Name}, depth*10+16+pixel.Measure(f.Name)
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for _, sub := range f.Dirs {
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child, cw := node(sub, depth+1)
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n.Children, w = append(n.Children, child), max(w, cw)
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}
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return n, w
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}
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// folderAt follows a tree path, "0/1", down from root.
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func folderAt(root Dir, path string) (Dir, bool) {
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parts := strings.Split(path, "/")
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if parts[0] != "0" {
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return Dir{}, false
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}
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f := root
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for _, p := range parts[1:] {
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// Only the plain form, as data.Tree writes it, is known.
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i, err := strconv.Atoi(p)
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if err != nil || strconv.Itoa(i) != p || i < 0 || i >= len(f.Dirs) {
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return Dir{}, false
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}
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f = f.Dirs[i]
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}
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return f, true
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}
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