Drop-down list view in list button does not retain selection state when model
data changes
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Key: PIVOT-594
URL: https://issues.apache.org/jira/browse/PIVOT-594
Project: Pivot
Issue Type: Bug
Components: wtk
Reporter: Greg Brown
Assignee: Greg Brown
Priority: Minor
Fix For: 2.0
When items are removed from a ListButton's data source, the list button's skin
receives the removal notification and updates the selection before the internal
ListView gets the removal notification. As a result, when the internal list
view gets the removal notification, its selection state is incorrectly updated
again, causing the selection to be cleared.
The following sample code demonstrates the problem:
<Window title="ListButton Selection Test" maximized="true"
xmlns:bxml="http://pivot.apache.org/bxml";
xmlns="org.apache.pivot.wtk">
<windowStateListeners>
function windowOpened(window) {
listButton.getListData().remove(0, 2);
}
</windowStateListeners>
<BoxPane orientation="vertical">
<ListButton bxml:id="listButton" listData="[1, 2, 3, 4]"
selectedIndex="3"/>
</BoxPane>
</Window>
This problem can probably be solved by adding a ListButtonItemListener
interface that proxies model change events after ensuring that the list button
has a consistent internal state (as is already done in ListView, TableView,
Spinner, and TreeView).
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