Module: ProMotion::ViewHelper

Included in:
MotionTable::SectionedTable, ScreenElements
Defined in:
lib/ProMotion/helpers/view_helper.rb

Instance Method Summary collapse

Instance Method Details

#content_height(view) ⇒ Object 



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# File 'lib/ProMotion/helpers/view_helper.rb', line 57

def content_height(view)
  height = 0
  view.subviews.each do |sub_view|
    next if sub_view.isHidden
    y = sub_view.frame.origin.y
    h = sub_view.frame.size.height
    if (y + h) > height
      height = y + h
    end
  end
  height
end

#frame_from_array(array) ⇒ Object 



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# File 'lib/ProMotion/helpers/view_helper.rb', line 50

def frame_from_array(array)
  PM.logger.deprecated "`frame_from_array` is deprecated and will be removed. Use RubyMotion's built-in [[x, y], [width, height]]."
  return CGRectMake(array[0], array[1], array[2], array[3]) if array.length == 4
  PM.logger.error "frame_from_array expects an array with four elements: [x, y, width, height]"
  CGRectZero.dup
end

#objective_c_method_name(meth) ⇒ Object 



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# File 'lib/ProMotion/helpers/view_helper.rb', line 25

def objective_c_method_name(meth)
  meth.split('_').inject([]){ |buffer,e| buffer.push(buffer.empty? ? e : e.capitalize) }.join
end

#set_attribute(element, k, v) ⇒ Object 



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# File 'lib/ProMotion/helpers/view_helper.rb', line 8

def set_attribute(element, k, v)
  if v.is_a?(Hash) && element.respond_to?(k)
    sub_element = element.send(k)
    set_attributes sub_element, v
  elsif v.is_a?(Array) && element.respond_to?("#{k}")
    element.send("#{k}", *v)
  elsif element.respond_to?("#{k}=")
    element.send("#{k}=", v)
  else
    # Doesn't respond. Check if snake case.
    if k.to_s.include?("_")
      set_attribute(element, objective_c_method_name(k), v)
    end
  end
  element
end

#set_attributes(element, args = {}) ⇒ Object 



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# File 'lib/ProMotion/helpers/view_helper.rb', line 3

def set_attributes(element, args = {})
  args.each { |k, v| set_attribute(element, k, v) }
  element
end

#set_easy_attributes(parent, element, args = {}) ⇒ Object 



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# File 'lib/ProMotion/helpers/view_helper.rb', line 29

def set_easy_attributes(parent, element, args={})
  attributes = {}

  if args[:resize]
    attributes[:autoresizingMask]  = UIViewAutoresizingNone
    attributes[:autoresizingMask] |= UIViewAutoresizingFlexibleLeftMargin   if args[:resize].include?(:left)
    attributes[:autoresizingMask] |= UIViewAutoresizingFlexibleRightMargin  if args[:resize].include?(:right)
    attributes[:autoresizingMask] |= UIViewAutoresizingFlexibleTopMargin    if args[:resize].include?(:top)
    attributes[:autoresizingMask] |= UIViewAutoresizingFlexibleBottomMargin if args[:resize].include?(:bottom)
    attributes[:autoresizingMask] |= UIViewAutoresizingFlexibleWidth        if args[:resize].include?(:width)
    attributes[:autoresizingMask] |= UIViewAutoresizingFlexibleHeight       if args[:resize].include?(:height)
  end

  if [:left, :top, :width, :height].select{ |a| args[a] && args[a] != :auto }.length == 4
    attributes[:frame] = CGRectMake(args[:left], args[:top], args[:width], args[:height])
  end

  set_attributes element, attributes
  element
end