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LibGUI/TreeView: Select parent on collapse

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When collapsing a tree that contains the current selection, the parent
node becomes selected instead.
This commit is contained in:
Jelle Raaijmakers 2021-05-31 23:47:01 +02:00 • committed by Andreas Kling
parent 67a5e9f018
commit 7a4445a1fe
3 changed files with 16 additions and 0 deletions
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11
Userland/Libraries/LibGUI/ModelIndex.cpp
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@ -19,6 +19,17 @@ Variant ModelIndex::data(ModelRole role) const
return model()->data(*this, role);
}
bool ModelIndex::is_parent_of(const ModelIndex& child) const
{
auto current_index = child.parent();
while (current_index.is_valid()) {
if (current_index == *this)
return true;
current_index = current_index.parent();
}
return false;
}
ModelIndex ModelIndex::sibling(int row, int column) const
{
if (!is_valid())