yisroelbaum/Goal-Calibration
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preserve expanded state across node re-render

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introduce a module-level expandedNodeIds set that tracks which
nodes the user has manually expanded. renderTree consults the set
when deciding initial visibility (falling back to the depth-based
default for a fresh load), the toggle click handler keeps the set
in sync, and both add-child save handlers add the parent's id
before triggering the re-fetch. on a fresh load the set starts
empty so root-only-open behavior is unchanged and the existing
toggle tests keep passing.
This commit is contained in:
Yisroel Baum 2026-05-01 11:45:55 +03:00
parent dce4e4a4f6
commit 1342a67cf3
Signed by: yisroelbaum
GPG key ID: 0FA60884F75520A9
1 changed files with 14 additions and 1 deletions
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15
public/js/text.js
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@ -1,3 +1,5 @@
const expandedNodeIds = new Set();
document.addEventListener('DOMContentLoaded', () => {
const textId = window.location.pathname.split('/').pop();
@ -69,7 +71,11 @@ function renderTree(nodes, textId, depth = 0) {
if (node.children.length > 0) {
const childUl = renderTree(node.children, textId, depth + 1);
const childrenVisible = depth === 0;
const childrenVisible =
expandedNodeIds.has(node.id) || depth === 0;
if (childrenVisible) {
expandedNodeIds.add(node.id);
}
childUl.style.display = childrenVisible ? '' : 'none';
const toggleBtn = document.createElement('button');
@ -79,6 +85,11 @@ function renderTree(nodes, textId, depth = 0) {
const isHidden = childUl.style.display === 'none';
childUl.style.display = isHidden ? '' : 'none';
toggleBtn.textContent = isHidden ? '▼' : '▶';
if (isHidden) {
expandedNodeIds.add(node.id);
} else {
expandedNodeIds.delete(node.id);
}
});
li.appendChild(toggleBtn);
@ -110,6 +121,7 @@ function toggleAddForm(li, parentNodeId, textId) {
const title = input.value.trim();
if (!title) return;
expandedNodeIds.add(parentNodeId);
fetch('/api/nodes', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
@ -155,6 +167,7 @@ function toggleBulkAddForm(li, parentNodeId, textId) {
const count = parseInt(countInput.value);
if (!titlePrefix || !count || count < 1) return;
expandedNodeIds.add(parentNodeId);
fetch('/api/nodes/bulk', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },