react-navigation-stack/lib/commonjs/utils/getSceneIndicesForInterpolationInputRange.js

Stack navigator component for React Navigation

Object.defineProperty(exports,"__esModule",{value:true});exports.default=void 0;function getSceneIndicesForInterpolationInputRange(props){var scene=props.scene,scenes=props.scenes;var index=scene.index;var lastSceneIndexInScenes=scenes.length-1;var isBack=!scenes[lastSceneIndexInScenes].isActive;if(isBack){var currentSceneIndexInScenes=scenes.findIndex(function(item){return item===scene;});var targetSceneIndexInScenes=scenes.findIndex(function(item){return item.isActive;});var targetSceneIndex=scenes[targetSceneIndexInScenes].index;var lastSceneIndex=scenes[lastSceneIndexInScenes].index;if(index!==targetSceneIndex&&currentSceneIndexInScenes===lastSceneIndexInScenes){return{first:Math.min(targetSceneIndex,index-1),last:index+1};}else if(index===targetSceneIndex&&currentSceneIndexInScenes===targetSceneIndexInScenes){return{first:index-1,last:Math.max(lastSceneIndex,index+1)};}else if(index===targetSceneIndex||currentSceneIndexInScenes>targetSceneIndexInScenes){return null;}else{return{first:index-1,last:index+1};}}else{return{first:index-1,last:index+1};}}var _default=getSceneIndicesForInterpolationInputRange;exports.default=_default;
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