121 lines
4.2 KiB
Go
121 lines
4.2 KiB
Go
package files
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import (
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"fmt"
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"log/slog"
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"strings"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/code"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/core"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/data"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/display"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/icons"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/input"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/layout"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/theme"
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)
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// PreviewFile holds caller-provided preview content.
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type PreviewFile struct {
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Name string
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Size int64
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// Image previews a picture; Text previews text or code.
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Image ui.ImageSource
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Text string
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// Language highlights code; empty guesses it from the extension.
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Language string
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}
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// FilePreviewOptions configure a FilePreview.
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type FilePreviewOptions struct {
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// Status shows the caller's read in progress or failed.
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Status data.DataStatus
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Error string
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}
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// FilePreviewResult exposes the panel and requested actions.
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type FilePreviewResult struct {
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Element *ui.Element
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// Closed, Opened and Retried report requested actions.
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Closed, Opened, Retried bool
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}
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var filePreviewLanguages = map[string]string{"go": "go", "js": "javascript", "ts": "typescript", "py": "python", "json": "json", "sh": "shell", "sql": "sql"}
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type previewCodeState struct {
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viewer code.CodeViewerState
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text string
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lines []string
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}
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// FilePreview presents images, text, code or unsupported-type copy.
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func FilePreview(c *ui.Context, f PreviewFile, opts FilePreviewOptions) FilePreviewResult {
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if f.Name == "" {
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panic("mujica: FilePreview needs a Name")
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}
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k := core.Tokens(c)
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u := core.Density(c).Unit()
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var res FilePreviewResult
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res.Element = code.CodePanel(c).Role(ui.RoleGroup).Label(fmt.Sprintf(core.Msg(c, "file_preview.label"), f.Name))
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codeState := ui.Local(res.Element, "file_preview.code", func() previewCodeState { return previewCodeState{} })
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if res.Element.Shortcut(0, ui.KeyEscape) && !res.Element.IsDisabled() {
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res.Closed = true
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}
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res.Element.Children(func() {
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code.CodeHeader(c, func() {
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FileIcon(c, f.Name, FileIconOptions{})
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ui.Text(c, f.Name).FontWeight(600).SingleLine().MinWidth(0).Shrink(1)
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if f.Size > 0 {
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ui.Text(c, code.ProcessListBytes(uint64(f.Size))).FontSize(core.FontSize(c, theme.CaptionSize)).TextColor(k.TextMuted).Shrink(0)
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}
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ui.Spacer(c)
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if input.Button(c, core.Msg(c, "file_preview.open"), input.ButtonOptions{Variant: input.Ghost}).MinHeight(theme.MinHitSize).Clicked() {
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res.Opened = true
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}
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if core.IconAction(c, icons.Must("x"), core.Msg(c, "file_preview.close")).Clicked() {
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res.Closed = true
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}
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})
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body := ui.Column(c).Grow(1).MinHeight(u * 40).Padding(u * 3)
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body.Children(func() {
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if opts.Status != data.DataReady {
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res.Retried = data.DataPlaceholder(c, opts.Status, opts.Error, "", "")
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return
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}
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lang := f.Language
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if lang == "" {
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lang = filePreviewLanguages[fileExt(f.Name)]
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}
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switch {
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case f.Image != nil:
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ui.Box(c).Grow(1).Center().Clip().Children(func() {
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display.Image(c, f.Image, display.ImageOptions{Alt: f.Name}).Element.MaxWidthPercent(100).MaxHeightPercent(100)
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})
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case lang != "" || FileKindOf(f.Name) == FileCode:
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if codeState.lines == nil || codeState.text != f.Text {
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codeState.text, codeState.lines = f.Text, strings.Split(f.Text, "\n")
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}
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if lang == "" {
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lang = fileExt(f.Name)
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}
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code.CodeViewer(c, codeState.lines, &codeState.viewer, code.CodeViewerOptions{Language: lang, Label: f.Name}).Element.Grow(1)
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case f.Text != "" || FileKindOf(f.Name) == FileText:
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layout.ScrollArea(c, nil, layout.ScrollAreaOptions{Label: f.Name}, func() {
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ui.Text(c, f.Text).Font(theme.MonoFont).FontSize(core.FontSize(c, code.CodeSize)).Selectable()
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}).Grow(1)
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default:
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ui.Column(c).Grow(1).Center().Gap(u * 2).Children(func() {
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FileIcon(c, f.Name, FileIconOptions{Size: 48})
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ui.Text(c, fmt.Sprintf(core.Msg(c, "file_preview.unsupported"), strings.ToUpper(fileExt(f.Name)))).TextColor(k.TextMuted).Role(ui.RoleStatus)
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})
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}
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})
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})
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if res.Closed || res.Opened {
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slog.Debug("mujica: file_preview action", "closed", res.Closed, "opened", res.Opened)
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}
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return res
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}
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