[
https://issues.apache.org/jira/browse/NETBEANS-2326?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Emilian Bold updated NETBEANS-2326:
-----------------------------------
Description:
*Summary*
For a brief second the Explorer API views show dummy nodes for a filtered node.
See the attached PNG screenshot and video for a general idea.
Oddly enough Children.Keys(boolean lazy)
[http://bits.netbeans.org/dev/javadoc/org-openide-nodes/org/openide/nodes/Children.Keys.html#Keys-boolean-]
does mention a "dummy" Node but it was never clear what that is and I never
imagined it could go all the way to the UI.
Ideally this flickering should be fixed or the existing documentation clarified
to explain this limitation...
*Steps to reproduce*
Open the zipped NetBeans module project (tested on NetBeans 8.2 and Apache
NetBeans 10.)
The children filtering is done the 'usual' way recommended in wiki:
{{new FilterNode.Children(node) {}}
{{ @Override}}
{{ protected Node[] createNodes(Node key) {}}
{{ if (rule(key)) {}}
{{ return super.createNodes(key);}}
{{ } else {}}
{{ //filter out}}
{{ return new Node[0];}}
{{ }}}
}
*Expected results*
The ListView / TreeTableView GUI should show only show the allowed nodes.
*Actual results*
The view actually shows many children nodes for a split second then it shows
the filtered nodes.
was:
*Summary*
For a brief second the Explorer API views show dummy nodes for a filtered node.
*Steps to reproduce*
Open the zipped NetBeans module project (tested on NetBeans 8.2 and Apache
NetBeans 10.)
The children filtering is done the 'usual' way recommended in wiki:
{{new FilterNode.Children(node) {}}
{{ @Override}}
{{ protected Node[] createNodes(Node key) {}}
{{ if (rule(key)) {}}
{{ return super.createNodes(key);}}
{{ } else {}}
{{ //filter out}}
{{ return new Node[0];}}
{{ }}}
}
*Expected results*
The ListView / TreeTableView GUI should show only the allowed nodes.
*Actual results*
The view actually shows many children nodes for a split second then it shows
the filtered nodes.
Oddly enough Children.Keys(boolean lazy)
[http://bits.netbeans.org/dev/javadoc/org-openide-nodes/org/openide/nodes/Children.Keys.html#Keys-boolean-]
does mention a "dummy" Node but it was never clear what that is and I never
imagined it could go all the way to the UI.
See the attached PNG screenshot and video for a general idea.
Ideally this flickering should be fixed or the existing documentation clarified
to explain this limitation...
> Explorer API views (ListView, TreeTableView) flicker when filtering nodes
> -------------------------------------------------------------------------
>
> Key: NETBEANS-2326
> URL: https://issues.apache.org/jira/browse/NETBEANS-2326
> Project: NetBeans
> Issue Type: Bug
> Components: platform - Explorer, platform - Nodes
> Affects Versions: 8.2, 10.0
> Reporter: Emilian Bold
> Priority: Major
> Attachments: 2326-poc.zip, dummy-nodes.png, filternode-flicker.mov
>
>
> *Summary*
> For a brief second the Explorer API views show dummy nodes for a filtered
> node. See the attached PNG screenshot and video for a general idea.
> Oddly enough Children.Keys(boolean lazy)
> [http://bits.netbeans.org/dev/javadoc/org-openide-nodes/org/openide/nodes/Children.Keys.html#Keys-boolean-]
> does mention a "dummy" Node but it was never clear what that is and I never
> imagined it could go all the way to the UI.
> Ideally this flickering should be fixed or the existing documentation
> clarified to explain this limitation...
> *Steps to reproduce*
> Open the zipped NetBeans module project (tested on NetBeans 8.2 and Apache
> NetBeans 10.)
> The children filtering is done the 'usual' way recommended in wiki:
> {{new FilterNode.Children(node) {}}
> {{ @Override}}
> {{ protected Node[] createNodes(Node key) {}}
> {{ if (rule(key)) {}}
> {{ return super.createNodes(key);}}
> {{ } else {}}
> {{ //filter out}}
> {{ return new Node[0];}}
> {{ }}}
> }
> *Expected results*
> The ListView / TreeTableView GUI should show only show the allowed nodes.
> *Actual results*
> The view actually shows many children nodes for a split second then it shows
> the filtered nodes.
>
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