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applescript: many buttons

Screen Shot 2016-07-21 at 18.04.41

I thought I’d share some code Shane Stanley wrote in response to a question I posed on ASUsers list a few weeks back. Both Shane and myself have modified that original answer, which wasn’t directly about how to display a dialog with more than three buttons like this.

This should work on all versions of OS X / macOS from 10.10 Yosemite onwards and produce something like the screenshot above. Obviously, you’ll want to adapt the size, message and buttons to fit your own circumstances. The parts you need to edit are near the end and begin with the commented line ‘set up the paramaters…’.

The script is helpfully peppered with notes but if you get stuck, just drop a question in the Comments below.

use AppleScript version "2.4" -- 10.10 or later
use framework "Foundation"
use framework "AppKit"
use framework "Carbon" -- AEInteractWithUser() is in Carbon
use scripting additions
property returnCode : missing value

on showMessage:theMessage withTitle:boldBit textFrame:textFieldSize textMaxWidth:maxWidth withButtons:buttonsList
# credit to Shane Stanley for this handler
-- make attributed string system font with monospaced digits
set fontSize to current application's NSFont's systemFontSizeForControlSize:(current application's NSRegularControlSize)
set theFont to current application's NSFont's systemFontOfSize:fontSize
set attsDict to current application's NSDictionary's dictionaryWithObject:theFont forKey:(current application's NSFontAttributeName)
set attString to current application's NSAttributedString's alloc()'s initWithString:theMessage attributes:attsDict
-- make a text field to hold the message
set theField to (current application's NSTextField's alloc()'s initWithFrame:textFieldSize)
tell theField
(its setEditable:false)
(its setBordered:false)
its setDrawsBackground:false
its (cell()'s setWraps:true)
its setPreferredMaxLayoutWidth:maxWidth
its setAttributedStringValue:attString
end tell

-- make it fit; needs to be done on the main thread
my performSelectorOnMainThread:"fitToSizeView:" withObject:theField waitUntilDone:true
-- make sure we have permission
set theError to current application's AEInteractWithUser(-1, missing value, missing value) -- -1 is kAEDefaultTimeout
if theError is not 0 then error "User interaction disallowed" number theError
-- create an alert
set theAlert to current application's NSAlert's alloc()'s init()
tell theAlert
its setMessageText:boldBit
repeat with anEntry in buttonsList
(its addButtonWithTitle:anEntry)
end repeat
its setAccessoryView:theField
end tell
-- show the alert; needs to be done on the main thread
my performSelectorOnMainThread:"showTheAlert:" withObject:theAlert waitUntilDone:true
set buttonNumber to returnCode mod 1000 + 1 -- where 1 = right-most button
set buttonName to item buttonNumber of buttonsList
return buttonName
end showMessage:withTitle:textFrame:textMaxWidth:withButtons:

on showTheAlert:theAlert
# credit to Shane Stanley for this handler
-- check we are running in foreground
if not (current application's NSThread's isMainThread()) as boolean then error "This handler must be called on the main thread." from current application
set my returnCode to theAlert's runModal()
end showTheAlert:

on fitToSizeView:aView
# credit to Shane Stanley for this handler
aView's setFrameSize:(aView's fittingSize())
end fitToSizeView:

# set up the parameters for the showMessage call:
set theMessage to "How many buttons would you like? There's no real limit except for practical and aesthetic considerations." & return & "Of course, I hope you'll never really think about using something as ugly as this!" & return & return & "Choose your heart out!"
set theTitle to "Many Buttons"

# increase or decrease the second item's numbers
# to fit larger or smaller amounts of text
# the '650' here is the text field's width
# the '80' is its height
set theTextFieldSize to {{0, 0}, {650, 80}}
set buttonsToDisplay to {"OK", "Five", "Four", "Three", "Two", "One", "Cancel"}

set theButtonReturned to its showMessage:theMessage withTitle:theTitle textFrame:theTextFieldSize textMaxWidth:(650) withButtons:buttonsToDisplay

Enjoy 🙂

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