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")
}