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Niv Greenstein
108797d48a
Geometry Viewer's base-layer choices were hardcoded (Empty, Street,
Topography, Gray Style, Light Color/Dark Matter), with no way to
point at a private/internal tile server or a provider not in that
built-in list.
Add a geometry_viewer preferences category (custom_tile_url, _name,
_crs, _attribution, _max_zoom) under sqleditor. When a valid custom
tile provider URL is configured (must be http(s) and contain {x},
{y}, {z}), it's used as the default base layer; built-in tiled
layers are hidden unless the custom provider's CRS is also
EPSG:3857 (Web Mercator), since they can't be reprojected together.
Non-mercator custom providers (e.g. EPSG:4326) only apply to SRID
4326 geometry data; other SRIDs still render on the existing blank
Cartesian plane.
Custom name/attribution are DOMPurify-sanitized before being passed
to Leaflet (both are innerHTML sinks). URL is not sanitized but is
gated by the http(s):// prefix check, so javascript:/data: URLs are
rejected; it's consumed as a tile-image src template, not an HTML
sink.
Adds GeometryViewerUtils.spec.js covering URL validation, defaults,
sanitization, CRS resolution/fallback, and base-layer composition.