forked from pharo-project/pharo
/
CompletionModel.class.st
160 lines (130 loc) · 3.2 KB
/
CompletionModel.class.st
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"
I am a model class which is used instead of the typed, untyped and empty NECModel's.
"
Class {
#name : #CompletionModel,
#superclass : #Object,
#instVars : [
'node',
'completionToken',
'entries',
'sorter'
],
#classVars : [
'Sorter'
],
#category : #'NECompletion-New'
}
{ #category : #accessing }
CompletionModel class >> sorter [
^ Sorter
]
{ #category : #accessing }
CompletionModel class >> sorter: aSorter [
Sorter := aSorter
]
{ #category : #entries }
CompletionModel >> commonPrefix [
"Longest match among the typed text and all menu entries"
| seed matchLengths prefixLength |
entries := self entries.
seed := entries first contents asString.
matchLengths := entries allButFirst
collect: [ :entry | seed charactersExactlyMatching: entry contents asString ]
thenSelect: [ :e | e >= completionToken size ].
prefixLength := matchLengths isEmpty
ifTrue: [ 0 ]
ifFalse: [ matchLengths min ].
^ seed first: prefixLength.
]
{ #category : #entries }
CompletionModel >> completionAt: aNumber [
| entry |
entry := (self entries at: aNumber) completion separateKeywords.
^ NECPreferences spaceAfterCompletion
ifTrue: [ entry, ' ' ]
ifFalse: [ entry ].
]
{ #category : #accessing }
CompletionModel >> completionToken [
^ completionToken
]
{ #category : #accessing }
CompletionModel >> entries [
^entries ifNil: [entries := self initEntries ].
]
{ #category : #entries }
CompletionModel >> entryCount [
^ self entries size
]
{ #category : #testing }
CompletionModel >> hasMessage [
^ self message notNil
]
{ #category : #entries }
CompletionModel >> initEntries [
| producer suggestionsList |
producer := CompletionProducerVisitor new.
self sorter: self class sorter.
suggestionsList := self sortList: (producer completionListForNode: node).
^ suggestionsList collect: [ :each | NECEntry contents: each node: node ]
]
{ #category : #initialization }
CompletionModel >> initialize [
completionToken := ''
]
{ #category : #testing }
CompletionModel >> isEmpty [
^ self entries isEmpty
]
{ #category : #accessing }
CompletionModel >> message [
^self isEmpty
ifTrue: ['no completions found']
ifFalse: [nil]
]
{ #category : #accessing }
CompletionModel >> narrowString [
^ completionToken
]
{ #category : #action }
CompletionModel >> narrowWith: aString [
completionToken := aString ifNil: [ '' ].
entries := entries
ifNil: [ self initEntries ]
ifNotNil: [ entries select: [ :each | each contents beginsWith: completionToken ] ]
]
{ #category : #accessing }
CompletionModel >> node [
^ node
]
{ #category : #accessing }
CompletionModel >> node: anObject [
node := anObject
]
{ #category : #testing }
CompletionModel >> notEmpty [
^ self entries isNotEmpty
]
{ #category : #sorting }
CompletionModel >> sortList: aList [
"this is where the sorting strategy is set"
^ sorter sortCompletionList: aList
]
{ #category : #sorting }
CompletionModel >> sorter [
^ sorter
]
{ #category : #sorting }
CompletionModel >> sorter: aSorter [
"the functionality allowing to hook up the sorter"
sorter := aSorter
]
{ #category : #accessing }
CompletionModel >> title [
| type |
[
type := node receiver propertyAt: #type ifAbsent: [ ^ '' ].
^ type name
] on: Error do: [ :e | ^ '' ]
]