<command>
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<command>
An element that sends events in response to keyboard input.

JavaScript: lz.command
extends <node> » lz.Eventable » 
<canvas height="130" debug="true">
   <command onselect="Debug.write('the enter key was pressed');" key="['Enter']"/>
 
 </canvas>
edit

Sample applications that use the <command> tag:

Also, see ???.

Attributes

Name Type (tag) Type (js) Default Category
active   Boolean   read/write
  true if the command is currently active. The default is true.
keys   [String]   read/write
  array of keys (strings) that, when pressed together, cause the onselect event of the command to be sent. For example: setAttribute('key', ['a', 'shift']) or setKeys(['j', 'control'])

Attributes inherited from <node>

classroot, cloneManager, datapath, defaultplacement, id, ignoreplacement, immediateparent, inited, initstage, name, nodeLevel, options, parent, placement, subnodes

Class Attributes

Name Type (tag) Type (js) Default Category
DisplayKeys   Dictionary   readonly
  Mapping from key names to display strings used by keysToString

Methods

destroy()
command.destroy();
execute()
command.execute(d : any);
Sends the command's onselect event.
Parameter Name Type Description
d any this optional parameter is passed to the onselect event
keysToString()
command.keysToString();
This is a utility method that returns a string that describes the key combination that causes this command to be invoked.
Returns Type Description
  String A string containing the key combination that causes this command to be invoked.
setKeys()
command.setKeys(k : [String]);
[Caution] This method is deprecated
Use setAttribute('key', ...) instead.
This registers the given key array so that the command is executed when the key array is pressed.
Parameter Name Type Description
k [String] An array of keys, given as strings.

Methods inherited from <node>

animate, applyConstraint, applyConstraintMethod, applyData, childOf, completeInstantiation, construct, createChildren, dataBindAttribute, destroy, determinePlacement, getAttribute, getOption, getUID, init, lookupSourceLocator, releaseConstraint, releaseConstraintMethod, searchImmediateSubnodes, searchSubnodes, setData, setDatapath, setOption, setSelected, updateData

Methods inherited from lz.Eventable

destroy, setAttribute

Events

Name Description
onselect If the command is active, this event is sent when the keys array are pressed simultaneously.

Events inherited from <node>

onconstruct, ondata, oninit

Events inherited from lz.Eventable

ondestroy

Copyright © 2002-2008 Laszlo Systems, Inc. All Rights Reserved. Unauthorized use, duplication or distribution is strictly prohibited. This is the proprietary information of Laszlo Systems, Inc. Use is subject to license terms.

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