Author image Paul Evans

NAME

Tickit::Widget::Entry::Plugin::Completion - add word-completion logic to a Tickit::Widget::Entry

SYNOPSIS

   use Tickit::Widget::Entry;
   use Tickit::Widget::Entry::Plugin::Completion;

   my $entry = Tickit::Widget::Entry->new( ... );
   Tickit::Widget::Entry::Plugin::Completion->apply( $entry,
      words => [ make_words() ],
   );

   ...

DESCRIPTION

This package applies code to a Tickit::Widget::Entry instance to implement word-completion logic while editing. This logic is activated by pressing the <Tab> key.

If the word currently being edited has a unique match in the list of words, then the word is completed entirely, followed by a space.

If there are multiple words that could complete from the word at the cursor, then a popup menu is presented showing the next available characters or matches. The user can continue typing more characters to narrow down the choice until a unique match is found.

METHODS

apply

   Tickit::Widget::Entry::Plugin::Completion->apply( $entry, %params )

Applies the plugin code to the given Tickit::Widget::Entry instance.

The following named parameters are recognised

gen_words => CODE
   @words = $gen_words->( %args )

A CODE reference to a subroutine used to generate the list of words at the current position. It is passed the following name/value pairs to assist it:

word => STRING

The partial word currently being completed.

wordpos => INT

The position of the beginning of the word, within the line. Will be 0 for the initial word of the line.

entry => Tickit::Widget::Entry

The underlying entry widget instance.

words => ARRAY

A shortcut to providing gen_words; a reference to an array containing all the possible words, in no particular order, that are offered for completion.

use_popup => BOOL

Optional. If false, do not display a popup menu. Defaults to true.

When this is disabled, the completion logic will apply longest-prefix matching on the set of available words, but will not otherwise display or offer any interactive UI on the list of matches.

ignore_case => BOOL

Optional. If true, word matching will be performed ignoring case, by using the /i regexp flag. Defaults to false. When the completion logic has selected a word to insert, it may change the case of the text already in the buffer to match the completion word.

append_after_word => STRING

Optional. If set, append this string after a successful unique match. Defaults to a single space.

AUTHOR

Paul Evans <leonerd@leonerd.org.uk>