Rotate Keynote Document for use as an app Prototype

RotateKeynoteDocumentDroplet

// Open Script Editor and Export this as an Application
//
// Then drop a keynote file on it in the Finder and it will properly resize
// and rotate everything so the Keynote file becomes usable as a prototype
// in the iPhone keynote app

// rotateDocument exported function
// 
// Accepts a Keynote document and will rotate
// all the slides and elements in the slide 90 degrees
// counterclockwise.
//
// Useful for demoing a Keynote document on an actual device because
// Keynote for iOS is landscape only and will not "play" a document
// in portrait
function rotateDocument(doc) {
	height = doc.height()
	width = doc.width()
	
	doc.height = width
	doc.width = height
	
	rotateSlides(doc)
}


// rotateSlides exported function
//
// Accepts a Keynote document and will rotate
// all the elements in all the slides 90 degrees counterclockwise
function rotateSlides(doc) {
  
  for (j in doc.slides) {
  	slide = doc.slides[j]
  	
  	rotateSlide(doc, slide)
  }
  
}

function rotateSlide(doc, slide) {

  // When resizing the slide, Keynote tries to still fit
  // all the elements in the new size, causing them to shrink.
  // The growthFactor controls how much we grow the elements in the slide
  // to compensate for that shrinking  
  growthFactor = 1.777777778

  slideHeight = doc.height()
  slideWidth = doc.width()

  function moveLine(item) {
  	moveShape(item, false)
  }

  // moveShape is the workhorse of this script
  // It will rotate, move, and resize the element in the slide
  // 
  // The hasTextObject argument is a boolean that specifies whether
  // the element passed in can have a textObject. For example,
  // a shape can have text (like the text inside of a round rectangle),
  // but lines don't have text.
  function moveShape(item, hasTextObject) {
  	position = item.position()

  	originalX = position.x
  	originalY = position.y

  	width = item.width()
  	height = item.height()
	
		// After rotating 90 degress, the Y axis becomes the X axis
		// The yCenterOffset offsets the item from the center of the Y axis
		// after it's been rotated
  	yCenterOffset = Math.round((width / 2 - ((slideWidth / 2) - originalX)) * growthFactor)
  	
  	originalRotation = item.rotation()
  	item.rotation = originalRotation + 90
	
		newWidth = width * growthFactor
  	newHeight = height * growthFactor
	
  	item.width = newWidth
  	item.height = newHeight
  	
  	if (hasTextObject) {
  		text = item.objectText
  		
  		originalSize = text.size()
  		text.size = originalSize * growthFactor
  	}
  	
  	newWidth = item.width()
  	
  	centerXTarget = (slideHeight / 2) - (newWidth / 2) - yCenterOffset
  	
  	item.position = $.NSMakePoint(originalY * growthFactor, centerXTarget)
  }

  function moveText(item) {
  	moveShape(item, true)
  }

  function moveImage(item) {
  	moveLine(item, true)
  }

  for (i in slide.shapes) {
  	shape = slide.shapes[i]
  	
  	moveShape(shape, true)
  }

  for (i in slide.textItems) {
  	text = slide.textItems[i]
  	
  	moveText(text)
  }

  for (i in slide.lines) {
  	line = slide.lines[i]
  	
  	moveLine(line)
  }

  for (i in slide.images) {
  	image = slide.images[i]
  	
  	moveImage(image)
  }
	
}

Keynote = Application("Keynote")

app = Application.currentApplication()
app.includeStandardAdditions = true

function openDocuments(docs) {
	firstDoc = docs[0]
	doc = Keynote.open(firstDoc)
	
	rotateDocument(doc)
	
	app.displayNotification(firstDoc.toString() + " finished converting")
}

Hi Eric, thanks for the script!

Based on it, I made another, starting from a different premise: a copy of the dropped document is made and is rotated. This integrates better in my "tool chain".

A by-product of this approach is that rounding errors (introduced by using a "growthFactor") can be avoided. Have a look: https://github.com/AdulteTerrible/DuplicateAndRotateKeynoteDocumentDroplet/blob/master/Script

@HaoyangLi - thanks for the suggestion regarding grouped elements! Unfortunately I'm still having problems with text in groups. The group seems to be rotated but the textboxes/text inside isn't resized. Means wherever I have text in groups, the text comes out looking tiny.

Do you have this problem too?

Thanks. For me it does not work with objects outside the slide boundaries (e.g. for animating them in) and it does not work for objects on the master slide :(.

The scripts above do not rotate the angles of transitions nor animation paths. For me, that's the whole point of going through all this trouble - to avoid even more trouble in Proto.io (a lovely tool, but much slower for animations generally).
Any ideas for how to rotate transition angles and motion paths??

Works like charm, thanks guys for all the changes.

Excellent workaround! HaoyangLi's suggested patch for grouped objects works for me as well.