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Fix directory preview layout to exactly match browser pane columns

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Root cause: renderPreviewPane() was stuffing directory entries into the
viewport model via SetContent(), then rendering through
renderPreviewContent() which wraps the viewport in an additional
border+padding box. This reduced the effective content width by 4
characters compared to the browser pane's innerWidth (width-2), causing
column misalignment where the date column would wrap to the next line.

Fix: For directory previews, directly render entries using the same
renderPaneRows() and renderColumnsHeader() functions as the browser
pane, at the same innerWidth. A temporary BrowserPane is created with
the directory entries, and renderPaneRows() is called with active=false,
producing pixel-identical output to the main file browser.

Removed renderDirectoryPreviewBody() which is no longer needed.
This commit is contained in:
vrubelroman 2026-04-27 16:52:44 +03:00
parent db5eaba409
commit bba8783f10
3 changed files with 22 additions and 7 deletions
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14
internal/fs/preview.go
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@ -53,6 +53,7 @@ type Preview struct {
Body string
PlainBody string
Metadata Metadata
Entries []Entry
}
type PreviewOptions struct {
@ -91,7 +92,7 @@ func BuildPreview(entry Entry, options PreviewOptions) Preview {
preview.Kind = PreviewKindDirectory
preview.Metadata.Size = entry.Size
preview.Metadata.SizeKnown = entry.DirSizeKnown
preview.Body = buildDirectoryPreview(entry.Path, options)
preview.Body, preview.Entries = buildDirectoryPreview(entry.Path, options)
preview.PlainBody = preview.Body
return preview
}
@ -305,7 +306,7 @@ func chromaStyleName(themeName string) string {
}
}
func buildDirectoryPreview(path string, options PreviewOptions) string {
func buildDirectoryPreview(path string, options PreviewOptions) (string, []Entry) {
entries, err := ListDir(path, ListOptions{
ShowHidden: options.ShowHidden,
DirsFirst: options.DirsFirst,
@ -313,12 +314,15 @@ func buildDirectoryPreview(path string, options PreviewOptions) string {
SortReverse: options.SortReverse,
})
if err != nil {
return fmt.Sprintf("Could not list directory:\n\n%s", err)
return fmt.Sprintf("Could not list directory:\n\n%s", err), nil
}
if len(entries) == 0 {
return "Directory is empty."
return "Directory is empty.", nil
}
// Return all entries as-is for column-based rendering.
// The text body is still generated for terminals that don't support
// the rich rendering, and as a fallback.
var lines []string
for _, entry := range entries {
if entry.IsParent {
@ -342,7 +346,7 @@ func buildDirectoryPreview(path string, options PreviewOptions) string {
}
}
return strings.Join(lines, "\n")
return strings.Join(lines, "\n"), entries
}
func previewIcon(entry Entry, useNerdIcons bool) string {