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feat: improve theme browser performance and add keyboard navigation

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This commit is contained in:
matt 2025-10-15 18:10:17 -07:00
parent 40e676e39b
commit 77302f895f
4 changed files with 75 additions and 22 deletions
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9
code/web/services/theme_catalog_loader.py
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@ -102,6 +102,14 @@ def _needs_reload() -> bool:
return True
if mtime > idx.mtime:
return True
# OPTIMIZATION: Skip YAML scanning unless explicitly enabled via env var.
# Checking 732 YAML files takes ~800ms and is only needed during theme authoring.
# In production, theme_list.json is the source of truth (built from YAMLs offline).
import os as _os
if _os.getenv("THEME_CATALOG_CHECK_YAML_CHANGES") != "1":
return False
# If any YAML newer than catalog mtime or newest YAML newer than cached scan -> reload
if YAML_DIR.exists():
import time as _t
@ -113,7 +121,6 @@ def _needs_reload() -> bool:
# Fast path: use os.scandir for lower overhead vs Path.glob
newest = 0.0
try:
import os as _os
with _os.scandir(YAML_DIR) as it: # type: ignore[arg-type]
for entry in it:
if entry.is_file() and entry.name.endswith('.yml'):