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# Redmine - project management software
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# Copyright (C) 2006-2013 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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module Menu
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module Manager
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class << self
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def map(menu_name)
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@items ||= {}
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mapper = Mapper.new(menu_name.to_sym, @items)
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if block_given?
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yield mapper
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else
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mapper
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end
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end
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def items(menu_name)
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# force menu reload in development when auto loading modified files
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@items || Menu::Loader.load
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@items[menu_name.to_sym] || Node.new(:root)
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end
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end
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class Mapper
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attr_reader :menu, :menu_items
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def initialize(menu, items)
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items[menu] ||= Node.new(:root)
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@menu = menu
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@menu_items = items[menu]
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end
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# Adds an item at the end of the menu. Available options:
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# * param: the parameter name that is used for the project id (default is :id)
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# * if: a Proc that is called before rendering the item, the item is displayed only if it returns true
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# * caption that can be:
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# * a localized string Symbol
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# * a String
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# * a Proc that can take the project as argument
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# * before, after: specify where the menu item should be inserted (eg. :after => :activity)
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# * parent: menu item will be added as a child of another named menu (eg. :parent => :issues)
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# * children: a Proc that is called before rendering the item. The Proc should return an array of MenuItems, which will be added as children to this item.
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# eg. :children => Proc.new {|project| [Foreman::Manager::MenuItem.new(...)] }
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# * last: menu item will stay at the end (eg. :last => true)
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# * html_options: a hash of html options that are passed to link_to
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def push(obj, options={})
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parent = options[:parent] || @parent
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target_root = (parent && subtree = self.find(parent)) ? subtree : @menu_items.root
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# menu item position
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if options[:first]
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target_root.prepend(obj)
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elsif (before = options[:before]) && exists?(before)
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target_root.add_at(obj, position_of(before))
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elsif (after = options[:after]) && exists?(after)
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target_root.add_at(obj, position_of(after) + 1)
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elsif options[:last]
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target_root.add_last(obj)
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else
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target_root.add(obj)
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end
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end
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def item(name, options={})
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push(Item.new(name, options), options)
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end
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def sub_menu name, options={}, &block
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push(Toggle.new(name, options[:caption]), options)
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current = @parent
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@parent = name
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self.instance_eval(&block) if block_given?
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@parent = current
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end
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def divider options={}
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push(Divider.new(:divider, options), options)
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end
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# Removes a menu item
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def delete(name)
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@menu_items.each do |item|
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if item.name == name && !item.parent.nil?
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return item.parent.remove!(item)
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end
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end
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nil
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end
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# Checks if a menu item exists
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def exists?(name)
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@menu_items.any? {|node| node.name == name}
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end
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def find(name)
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@menu_items.find {|node| node.name == name}
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end
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def position_of(name)
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@menu_items.each do |node|
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if node.name == name
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return node.position
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end
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end
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end
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end
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end
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end
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