Class: HandyToolbox::Navigator

Inherits:
Object
  • Object
show all
Defined in:
lib/handy_toolbox/navigator.rb

Instance Method Summary collapse

Instance Method Details

#current_parent ⇒ Object 



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# File 'lib/handy_toolbox/navigator.rb', line 33

def current_parent
  @parent
end

#down(by = 1) ⇒ Object 



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# File 'lib/handy_toolbox/navigator.rb', line 59

def down(by = 1)
  @current_index = [@current_index + by, @children.size - 1].min
end

#enter(parent) ⇒ Object 



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# File 'lib/handy_toolbox/navigator.rb', line 46

def enter(parent)
  @parent = parent
  parent.on_load if parent.is_a?(MenuLoader)

  @children = parent.children
  @current_index = 0
  selection
end

#enter_selected ⇒ Object 



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# File 'lib/handy_toolbox/navigator.rb', line 37

def enter_selected
  old = selection
  if selection.id == Ids::BACK
    enter(old.parent)
  else
    enter(selection)
  end
end

#select_by_index(index) ⇒ Object 



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# File 'lib/handy_toolbox/navigator.rb', line 27

def select_by_index(index)
  if index >= 0 && index < @children.size
    @current_index = index
  end
end

#select_first ⇒ Object 



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# File 'lib/handy_toolbox/navigator.rb', line 19

def select_first
  select_by_index(0)
end

#select_last ⇒ Object 



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# File 'lib/handy_toolbox/navigator.rb', line 23

def select_last
  select_by_index(@children.size - 1)
end

#selection ⇒ Object 



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# File 'lib/handy_toolbox/navigator.rb', line 15

def selection
  @children[@current_index]
end

#tool ⇒ Object 



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# File 'lib/handy_toolbox/navigator.rb', line 9

def tool
  if tool_selected?
    selection.tool
  end
end

#tool_selected? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/handy_toolbox/navigator.rb', line 5

def tool_selected?
  selection.is_a?(ToolMenuItem)
end

#up(by = 1) ⇒ Object 



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# File 'lib/handy_toolbox/navigator.rb', line 55

def up(by = 1)
  @current_index = [0, @current_index - by].max
end