scandit-web-datacapture-core
Version:
Scandit Data Capture SDK for the Web
4 lines (2 loc) • 1.96 kB
JavaScript
var a="orientationchange",n={"portrait-primary":{type:"portrait-primary",angle:0,value:"portrait"},"portrait-secondary":{type:"portrait-secondary",angle:180,value:"portraitUpsideDown"},"landscape-primary":{type:"landscape-primary",angle:90,value:"landscapeLeft"},"landscape-secondary":{type:"landscape-secondary",angle:270,value:"landscapeRight"}},t=class extends EventTarget{constructor(){super(...arguments);this.orientation={value:"portrait",type:"portrait-primary",angle:0};this.landscapeOrientationMediaQuery=matchMedia("(orientation: landscape)");this.screenOrientationChangeListener=this.onScreenOrientationChange.bind(this);this.landscapeOrientationMediaQueryChangeListener=this.onLandscapeOrientationMediaQueryChange.bind(this);}register(){this.isScreenOrientationApiSupported()?(screen.orientation.addEventListener("change",this.screenOrientationChangeListener),this.onScreenOrientationChange()):(this.landscapeOrientationMediaQuery.addEventListener("change",this.landscapeOrientationMediaQueryChangeListener),this.onLandscapeOrientationMediaQueryChange(new MediaQueryListEvent("change",{matches:this.landscapeOrientationMediaQuery.matches})));}unregister(){this.isScreenOrientationApiSupported()?screen.orientation.removeEventListener("change",this.screenOrientationChangeListener):this.landscapeOrientationMediaQuery.removeEventListener("change",this.landscapeOrientationMediaQueryChangeListener);}isScreenOrientationApiSupported(){return "screen"in window&&"orientation"in screen&&typeof screen.orientation.addEventListener=="function"}dispatchOrientationChangeEvent(e){this.dispatchEvent(new CustomEvent(a,{detail:e}));}onScreenOrientationChange(){this.orientation=n[screen.orientation.type],this.dispatchOrientationChangeEvent(this.orientation);}onLandscapeOrientationMediaQueryChange(e){let i=e;this.orientation=i.matches?n["landscape-primary"]:n["portrait-primary"],this.dispatchOrientationChangeEvent(this.orientation);}};
export { a, t as b };