mapcomplete/Models/Constants.ts

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import { Utils } from "../Utils";
export default class Constants {
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public static vNumber = "0.4.5";
// The user journey states thresholds when a new feature gets unlocked
public static userJourney = {
addNewPointsUnlock: 0,
moreScreenUnlock: 5,
personalLayoutUnlock: 20,
tagsVisibleAt: 100,
mapCompleteHelpUnlock: 200,
tagsVisibleAndWikiLinked: 150,
themeGeneratorReadOnlyUnlock: 200,
themeGeneratorFullUnlock: 500,
addNewPointWithUnreadMessagesUnlock: 500,
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minZoomLevelToAddNewPoints: (Constants.isRetina() ? 18 : 19)
};
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private static isRetina(): boolean {
if (Utils.runningFromConsole) {
return;
}
// The cause for this line of code: https://github.com/pietervdvn/MapComplete/issues/115
// See https://stackoverflow.com/questions/19689715/what-is-the-best-way-to-detect-retina-support-on-a-device-using-javascript
return ((window.matchMedia && (window.matchMedia('only screen and (min-resolution: 192dpi), only screen and (min-resolution: 2dppx), only screen and (min-resolution: 75.6dpcm)').matches || window.matchMedia('only screen and (-webkit-min-device-pixel-ratio: 2), only screen and (-o-min-device-pixel-ratio: 2/1), only screen and (min--moz-device-pixel-ratio: 2), only screen and (min-device-pixel-ratio: 2)').matches)) || (window.devicePixelRatio && window.devicePixelRatio >= 2));
}
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}