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gui: sidebar tree UX fixes — has_children, preserve expanded, double-click, DnD visual

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- Backend: add HasChildren field to NodeDTO; ListWorkspaceTree/ListChildren
  populate it by querying CountChildren for container types
- Node repository: add CountChildren(parentID, types...) method
- TreeNode: toggle shown only when has_children (not isContainer); double-click
  on row = expand/collapse; icon click = expand/collapse; drop-valid class via
  DOM classList for DnD highlight; auto-expand collapsed container on 500ms
  hover during drag; auto-scroll near edge during drag
- App.svelte: selectNode no longer resets workspaceTree/expanded; new
  reloadTreePreservingExpanded() helper re-fetches children for all expanded
  nodes after DnD move / delete; deleteWorkspaceNode preserves expanded state
This commit is contained in:
mirivlad
2026-06-03 03:48:53 +08:00
parent 9260582072
commit c941f05dab
10 changed files with 111 additions and 65 deletions
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cmd/verstak-gui/frontend-dist/index.html
+2 -2
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@@ -16,8 +16,8 @@
background: #13131f;
}
</style>
<script type="module" crossorigin src="/assets/main-Dt9BLCiY.js"></script>
<link rel="stylesheet" crossorigin href="/assets/main-CHi9sCXv.css">
<script type="module" crossorigin src="/assets/main-y7k2Kn7r.js"></script>
<link rel="stylesheet" crossorigin href="/assets/main-CJu7OoK7.css">
</head>
<body>
<div id="app"></div>