Method: MotionPrime::BaseFieldSection#focus

Defined in:
motion-prime/sections/form/base_field_section.rb

#focus(begin_editing = false) ⇒ Object 



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# File 'motion-prime/sections/form/base_field_section.rb', line 66

def focus(begin_editing = false)
  # focus on text field
  elements.values.detect do |element|
    if element.view.is_a?(UITextField) || element.view.is_a?(UITextView)
      element.view.becomeFirstResponder
    end
  end if begin_editing

  # scroll to cell
  # path = form.collection_view.indexPathForCell(cell)
  # form.collection_view.scrollToRowAtIndexPath path,
  #   atScrollPosition: UITableViewScrollPositionTop, animated: true
  return self unless input_view = element(:input).try(:view)
  origin = input_view.frame.origin
  point = container_view.convertPoint(origin, toView: form.collection_view)

  nav_bar_height = screen.navigationController ? screen.navigationController.navigationBar.frame.size.height : 0
  nav_bar_height += 20 # status bar height

  offset = form.collection_view.contentOffset
  new_top_offset = point.y - nav_bar_height
  unless new_top_offset == offset.y
    offset.y = new_top_offset
    form.collection_view.setContentOffset(offset, animated: true)
  end

  self
rescue
  NSLog("can't focus on element #{self.class_name_without_kvo}")
end