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trees: always handle an twistie events by the tree if it changes collapsed state (#209090)

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This allows preserving your multi-selection while expanding/collapsing other nodes in the tree. I think this is a good overall change to make across our UI. E.g. similarly, without this change, you can't expand a folder in the Explorer view without losing your selection state. cc @joaomoreno

Fixes #208852
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Connor Peet 2024-03-29 00:53:17 -07:00 committed by GitHub
parent 86bf11fe76
commit e2dc70e393
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src/vs/base/browser/ui/tree/abstractTree.ts
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@ -2295,7 +2295,7 @@ class TreeNodeListMouseController<T, TFilterData, TRef> extends MouseController<
this.tree.setFocus([location]);
this.tree.toggleCollapsed(location, recursive);
if (expandOnlyOnTwistieClick && onTwistie) {
if (onTwistie) {
// Do not set this before calling a handler on the super class, because it will reject it as handled
e.browserEvent.isHandledByList = true;
return;