define-command ( word hash -- )
Factor handbook » UI framework » Implementing new gadgets » UI gestures » Commands

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define-command-map ( class group blurb pairs -- )

Vocabulary
ui.commands

Inputs

word	a word
hash	a hashtable

Outputs
None

Word description
Defines a command. The hashtable can contain the following keys:

•	+nullary+ - if set to a true value, the word must have stack effect ( -- ); otherwise it must have stack effect ( target -- )
•	+listener+ - if set to a true value, the command will run in the listener
•	+description+ - can be set to a string description of the command

Definition

USING: accessors assocs kernel ;

IN: ui.commands

: define-command ( word hash -- )
    default-flags swap assoc-union
    '[ _ assoc-union ] change-props drop ;