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fix: preserve tree expand/collapse state on column freeze #238

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fix: preserve tree expand/collapse state on column freeze #238

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16 changes: 15 additions & 1 deletion src/body-renderer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -63,12 +63,26 @@ export default class BodyRenderer {
}

render() {
const rows = this.datamanager.getRowsForView();
const rows = this.getRowsToRender();
this.renderRows(rows);
// setDimensions requires atleast 1 row to exist in dom
this.instance.setDimensions();
}

// Keep the current tree expand/collapse state on a full re-render
getRowsToRender() {
const rows = this.datamanager.getRowsForView();
let closedIndent = null;
return rows.filter(row => {
const { indent, isTreeNodeClose } = row.meta;
if (closedIndent !== null && indent > closedIndent) {
return false;
}
closedIndent = isTreeNodeClose ? indent : null;
return true;
});
}

renderFooter() {
if (!this.options.showTotalRow) return;

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