46 lines
1.7 KiB
JavaScript
46 lines
1.7 KiB
JavaScript
export const scrollToItemDynamic = (params)=>{
|
|
const { index, itemSizes, totalSize, scrollViewRef, axis = 'vertical', reversed = false, behavior = 'auto' } = params;
|
|
if (!itemSizes.current) {
|
|
return;
|
|
}
|
|
if (itemSizes.current === null || itemSizes.current.length < index) {
|
|
// null check - abort
|
|
return;
|
|
}
|
|
let itemDepth = 0;
|
|
for(let i = 0; i < index; i++){
|
|
if (i < index) {
|
|
itemDepth += itemSizes.current[i];
|
|
}
|
|
}
|
|
if (axis === 'horizontal') {
|
|
if (reversed) {
|
|
var _scrollViewRef_current;
|
|
(_scrollViewRef_current = scrollViewRef.current) === null || _scrollViewRef_current === void 0 ? void 0 : _scrollViewRef_current.scrollTo({
|
|
left: totalSize - itemDepth,
|
|
behavior
|
|
});
|
|
} else {
|
|
var _scrollViewRef_current1;
|
|
(_scrollViewRef_current1 = scrollViewRef.current) === null || _scrollViewRef_current1 === void 0 ? void 0 : _scrollViewRef_current1.scrollTo({
|
|
left: itemDepth,
|
|
behavior
|
|
});
|
|
}
|
|
} else {
|
|
if (reversed) {
|
|
var _scrollViewRef_current2;
|
|
(_scrollViewRef_current2 = scrollViewRef.current) === null || _scrollViewRef_current2 === void 0 ? void 0 : _scrollViewRef_current2.scrollTo({
|
|
top: totalSize - itemDepth,
|
|
behavior
|
|
});
|
|
} else {
|
|
var _scrollViewRef_current3;
|
|
(_scrollViewRef_current3 = scrollViewRef.current) === null || _scrollViewRef_current3 === void 0 ? void 0 : _scrollViewRef_current3.scrollTo({
|
|
top: itemDepth,
|
|
behavior
|
|
});
|
|
}
|
|
}
|
|
};
|