Created
August 17, 2021 09:50
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MacOS keybindings for cursor movement in Pharo Smalltalk
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| ClyNavigateBrowserBackCommand class compile: 'defaultShortcut | |
| ^Character arrowLeft control alt "fails for now"'. | |
| ClyNavigateBrowserForwardCommand class compile: 'defaultShortcut | |
| ^Character arrowRight control alt "fails for now"'. | |
| RubTextEditor compile: 'moveCursor: directionBlock forward: forward specialBlock: specialBlock event: aKeyboardEvent | |
| "Private - Move cursor. | |
| directionBlock is a one argument Block that computes the new Position from a given one. | |
| specialBlock is a one argumentBlock that computes the new position from a given one under the alternate semantics. | |
| Note that directionBlock always is evaluated first." | |
| | shift isVertical indices position newPosition string | | |
| shift := aKeyboardEvent shiftPressed. | |
| isVertical := aKeyboardEvent keyCharacter | |
| ifNotNil: [ :keyChar | | |
| { Character arrowUp . Character arrowDown . Character home . Character end } includes: keyChar ] | |
| ifNil: [ false ]. | |
| indices := self setIndices: shift forward: forward. | |
| position := indices at: #moving. | |
| string := self string. | |
| newPosition := aKeyboardEvent altKeyPressed | |
| ifTrue: [ specialBlock value: (directionBlock value: position) ] | |
| ifFalse: [ | |
| aKeyboardEvent commandKeyPressed | |
| ifTrue: [ | |
| isVertical | |
| ifTrue: [ | |
| forward | |
| ifTrue: [ string size + 1 ] | |
| ifFalse: [ 1 ] ] | |
| ifFalse: [ | |
| forward | |
| ifTrue: [ string indexOf: Character cr startingAt: position ifAbsent: [ string size + 1 ] ] | |
| ifFalse: [ (string lastIndexOf: Character cr startingAt: position - 1 ifAbsent: [ 0 ]) + 1 ] ] ] | |
| ifFalse: [ directionBlock value: position ] ]. | |
| shift | |
| ifTrue: [self selectMark: (indices at: #fixed) point: newPosition - 1] | |
| ifFalse: [self selectAt: newPosition]. | |
| self setEmphasisHereFromTextForward: forward' |
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