在没有鼠标或键盘箭头的情况下滚动浏览Netbeans代码帮助列表

Question

This is basically the same question as this except for Netbeans 8.0.2 (running under jMonkeyEngine SDK 3.1-alpha1) instead of Visual Studio.

Honestly, the aforemetnioned link says it better than I can, but basically I'm a vim key binding user, and have the netbeans jVi plugin installed and want to map, for example, alt-j and alt-k to scroll through the code completion list instead of the arrow keys:

I've searched through Tools->Options->Keymap, as well as the the JVi configs at Tools->Options->jViConfig. I don't see anything at all under jViConfig, so I think the standard NetBeans key bindings are the way to go.

I have tried modifying most of the obvious down keys eg insertion point down , scroll down , page down etc, but they all affect the underlying text in the editor, never the completion list.

And:

Does anyone know of a way to do this?
Or maybe a plugin to provide the functionality?
It simply appears that the raw arrow key movements are not mappable by netbeans (?).

Note: this is possible to do in Visual Studio 2015, so I'm hoping it's possible in NetBeans as well.

Many Thanks.

Answer 1

AFAIK, there is no way to do this in NetBeans. At least there wasn't in 2010, when I filed the NetBeans bug hint completion makes assumptions about associated editor pane bindings . I maintain jVi. I filed the bug since I was having trouble with completion bindings for some special keys. In the NB source take a look at

editor.completion/src/org/netbeans/modules/editor/completion/CompletionScrollPane.java

And you'll see a bunch of hardcoded stuff.

In the jVi source

nbvi/nbvi-module/src/org/netbeans/modules/jvi/KeyBindings.java

method fixupKeypadKeys, you see what jVi does (given the fix for the bug I filed). This is part of some arcane code that depends on being friend with some NB editor package.

You could file a bug with NB. If you provided NB a patch, they might incorporate it. If you file a NB bug, cc me (err at netbeans.org)

Alternately, you could try adding some code to the jVi file to add your keybindings.