module Rabbit::Element::SlideElement

# File lib/rabbit/element/slide-element.rb, line 26
def initialize(title_element)
  @index = -1
  @default_waited_draw_procs = []
  @default_waited_targets = []
  super(title_element)
end

# File lib/rabbit/element/slide-element.rb, line 70
def clear_theme
  super
  clear_waiting
  clear_transition
  @waited_draw_procs = @default_waited_draw_procs.dup
  @waited_targets = @default_waited_targets.dup
end

# File lib/rabbit/element/slide-element.rb, line 66
def clear_transition
  @transition = nil
end

# File lib/rabbit/element/slide-element.rb, line 62
def clear_waiting
  @drawing_index = 0
end

# File lib/rabbit/element/slide-element.rb, line 45
def draw(canvas, simulation=nil)
  if simulation.nil?
    begin
      draw(canvas, true)
      draw(canvas, false)
    rescue StandardError, LoadError
      Rabbit.logger.warn($!)
    end
  else
    canvas.draw_slide(self, simulation) do
      compile(canvas, 0, 0, canvas.width, canvas.height)
      super(simulation)
    end
    run_gc unless simulation
  end
end

# File lib/rabbit/element/slide-element.rb, line 78
def first?(index=nil)
  (index || @drawing_index).zero?
end

# File lib/rabbit/element/slide-element.rb, line 107
def flush
  @drawing_index = @waited_draw_procs.size
end

# File lib/rabbit/element/slide-element.rb, line 82
def last?(index=nil)
  @waited_draw_procs.size == (index || @drawing_index)
end

# File lib/rabbit/element/slide-element.rb, line 86
def move_to_next
  @drawing_index += 1 unless last?
end

# File lib/rabbit/element/slide-element.rb, line 90
def move_to_previous
  @drawing_index -= 1 unless first?
end

# File lib/rabbit/element/slide-element.rb, line 94
def register_default_wait_proc(target, exact=false, &proc)
  @default_waited_draw_procs << [target, exact, proc]
end

# File lib/rabbit/element/slide-element.rb, line 98
def register_default_wait_target(target)
  @default_waited_targets << target
end

# File lib/rabbit/element/slide-element.rb, line 102
def register_wait_proc(target, exact=false, &proc)
  @waited_draw_procs << [target, exact, proc]
  @waited_targets << target
end

# File lib/rabbit/element/slide-element.rb, line 41
def size_ratio
  self["size-ratio"]
end

# File lib/rabbit/element/slide-element.rb, line 33
def slide
  self
end

# File lib/rabbit/element/slide-element.rb, line 37
def title
  @elements.first.text
end

# File lib/rabbit/element/slide-element.rb, line 111
def visible_waited_target?(target)
  @waited_targets[0, @drawing_index].include?(target)
end

# File lib/rabbit/element/slide-element.rb, line 115
def waited_draw_procs(target)
  procs = []
  candidates = @waited_draw_procs[0, @drawing_index]
  candidates.each_with_index do |(t, exact, proc), i|
    next unless target == t
    if exact
      procs << proc if i == @drawing_index - 1
    else
      procs << proc
    end
  end
  procs
end

# File lib/rabbit/element/slide-element.rb, line 130
def run_gc
  lazy_gc_timout_msec = 1000
  @compressed_gc_task_id ||= GLib::Timeout.add(lazy_gc_timout_msec) do
    GC.start
    @compressed_gc_task_id = nil
    GLib::Source::REMOVE
  end
end