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  <page>
    <title>DevFaqRebindingKeys</title>
    <id>7448</id>
    <revision>
      <id>26232</id>
      <timestamp>2009-11-06T15:58:58Z</timestamp>
      <contributor>
        <username>Admin</username>
        <id>1</id>
      </contributor>
      <text xml:space="preserve">__NOTOC__
===Can I bind one key to more than one action?===


The simple answer is no:  The
global keymap (get &lt;tt&gt;Keymap&lt;/tt&gt; from Lookup)
is a master keymap for the whole application, and like all keymaps accepts
only one action per binding. If you want multiple actions to be
run, you must create a "wrapper" action that runs them all in turn
(or in parallel).

====What about binding a key differently in different windows?====

You may bind a key differently in different windows, by using
the normal Swing techniques of binding keystrokes to components. In
fact, some work went into implementing the global map so that it
would work across arbitrary components; it is overridden by local
bindings, such as navigation keys on dialogs or Explorer trees, or
various editing keys in the Editor.

Before you bind a key performing a high-level specific action,
such as '''Ctrl-N''' for '''New File''',
to a different action in a local component (e.g. window), think
carefully whether this is really the right approach. In many cases
the UI of your extension and the IDE as a whole will be better
served by leaving the key binding alone, and instead providing an
appropriate cookie, action performer, or other callback associated
with your component, so that the action (and potentially other code
unknown to you) will function naturally. If you must rebind a
global key, consider whether it is appropriate to determine the
current key binding for the action (if any) in the global keymap,
and use this keystroke to rebind - so user customizations will
remain intact.

&lt;tt&gt;CallbackSystemAction&lt;/tt&gt;s such as '''Find''' or
'''Delete''' can easily have different bindings in each component,
using &lt;tt&gt;ActionMap&lt;/tt&gt;.</text>
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