rouggy
f56630d7d6
The world map was the only one that remembered anything. Panning and zooming a map is the operator saying which part of the world they work, and on the FT decodes map and the grid-square map that was thrown away on every tab switch. Both now keep centre and zoom, through one shared helper (lib/mapView) that the world map uses too, and the keys are portable so a copied data folder brings the views with it. The world map also waits for the station's square before it paints. It drew the world at 0 degrees and then moved to the operator's longitude — a screenful of Esri tiles fetched and discarded on every first run. It is now built once, knowing where it is looking; a profile with no locator gets the default view after two seconds rather than a blank panel.
32 lines
1.3 KiB
TypeScript
32 lines
1.3 KiB
TypeScript
// Remembered map views — where each map was left, per map.
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//
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// Panning and zooming a map is an operator saying "this is the part of the world
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// I work". Throwing that away on every tab switch made the maps something to
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// set up again each time rather than something to glance at, and the world map
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// was the only one that remembered anything.
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//
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// One key per map, and portable (see lib/uiPref) like the world map's own: a
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// copied data folder brings the views with it.
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import { writeUiPref } from '@/lib/uiPref';
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export type MapView = { lat: number; lon: number; zoom: number };
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// The keys in use. Named here rather than typed at each call site so a rename
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// cannot silently orphan somebody's saved view.
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export const MAP_VIEW_WORLD = 'opslog.mapView';
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export const MAP_VIEW_FT = 'opslog.ftMapView';
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export const MAP_VIEW_GRIDS = 'opslog.gridMapView';
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export function loadMapView(key: string): MapView | null {
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try {
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const v = JSON.parse(localStorage.getItem(key) || 'null');
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return v && typeof v.zoom === 'number' && typeof v.lat === 'number' && typeof v.lon === 'number' ? v : null;
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} catch {
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return null; // corrupt or unreadable → open where the map would by default
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}
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}
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export function saveMapView(key: string, lat: number, lon: number, zoom: number): void {
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writeUiPref(key, JSON.stringify({ lat, lon, zoom }));
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}
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