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Preserve scroll position when restoring focus #8401

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Merged
merged 1 commit into from
Nov 23, 2016
Merged

Preserve scroll position when restoring focus #8401

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20 changes: 20 additions & 0 deletions src/renderers/dom/shared/ReactInputSelection.js
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,27 @@ var ReactInputSelection = {
priorSelectionRange
);
}

// Focusing a node can change the scroll position, which is undesirable
const ancestors = [];
let ancestor = priorFocusedElem;
while ((ancestor = ancestor.parentNode)) {
if (ancestor.nodeType === 1) {
ancestors.push({
element: ancestor,
left: ancestor.scrollLeft,
top: ancestor.scrollTop,
});
}
}

focusNode(priorFocusedElem);

for (let i = 0; i < ancestors.length; i++) {
const ancestor = ancestors[i];
ancestor.element.scrollLeft = ancestor.left;
ancestor.element.scrollTop = ancestor.top;
}
}
},

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