436 lines
14 KiB
Ruby
436 lines
14 KiB
Ruby
# 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 Redmine
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module MenuManager
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class MenuError < StandardError #:nodoc:
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end
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module MenuController
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def self.included(base)
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base.extend(ClassMethods)
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end
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module ClassMethods
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@@menu_items = Hash.new {|hash, key| hash[key] = {:default => key, :actions => {}}}
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mattr_accessor :menu_items
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# Set the menu item name for a controller or specific actions
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# Examples:
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# * menu_item :tickets # => sets the menu name to :tickets for the whole controller
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# * menu_item :tickets, :only => :list # => sets the menu name to :tickets for the 'list' action only
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# * menu_item :tickets, :only => [:list, :show] # => sets the menu name to :tickets for 2 actions only
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#
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# The default menu item name for a controller is controller_name by default
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# Eg. the default menu item name for ProjectsController is :projects
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def menu_item(id, options = {})
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if actions = options[:only]
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actions = [] << actions unless actions.is_a?(Array)
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actions.each {|a| menu_items[controller_name.to_sym][:actions][a.to_sym] = id}
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else
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menu_items[controller_name.to_sym][:default] = id
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end
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end
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end
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def menu_items
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self.class.menu_items
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end
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# Returns the menu item name according to the current action
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def current_menu_item
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@current_menu_item ||= menu_items[controller_name.to_sym][:actions][action_name.to_sym] ||
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menu_items[controller_name.to_sym][:default]
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end
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# Redirects user to the menu item of the given project
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# Returns false if user is not authorized
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def redirect_to_project_menu_item(project, name)
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item = Redmine::MenuManager.items(:project_menu).detect {|i| i.name.to_s == name.to_s}
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if item && User.current.allowed_to?(item.url, project) && (item.condition.nil? || item.condition.call(project))
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redirect_to({item.param => project}.merge(item.url))
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return true
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end
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false
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end
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end
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module MenuHelper
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# Returns the current menu item name
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def current_menu_item
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controller.current_menu_item
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end
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# Renders the application main menu
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def render_main_menu(project)
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render_menu((project && !project.new_record?) ? :project_menu : :application_menu, project)
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end
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def display_main_menu?(project)
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menu_name = project && !project.new_record? ? :project_menu : :application_menu
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Redmine::MenuManager.items(menu_name).children.present?
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end
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def render_menu(menu, project=nil)
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links = []
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menu_items_for(menu, project) do |node|
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links << render_menu_node(node, project)
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end
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links.empty? ? nil : content_tag('ul', links.join("\n").html_safe)
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end
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def render_menu_node(node, project=nil)
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if node.children.present? || !node.child_menus.nil?
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return render_menu_node_with_children(node, project)
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else
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caption, url, selected = extract_node_details(node, project)
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return content_tag('li',
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render_single_menu_node(node, caption, url, selected))
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end
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end
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def render_menu_node_with_children(node, project=nil)
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caption, url, selected = extract_node_details(node, project)
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html = [].tap do |html|
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html << '<li>'
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# Parent
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html << render_single_menu_node(node, caption, url, selected)
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# Standard children
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standard_children_list = "".html_safe.tap do |child_html|
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node.children.each do |child|
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child_html << render_menu_node(child, project)
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end
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end
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html << content_tag(:ul, standard_children_list, :class => 'menu-children') unless standard_children_list.empty?
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# Unattached children
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unattached_children_list = render_unattached_children_menu(node, project)
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html << content_tag(:ul, unattached_children_list, :class => 'menu-children unattached') unless unattached_children_list.blank?
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html << '</li>'
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end
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return html.join("\n").html_safe
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end
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# Returns a list of unattached children menu items
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def render_unattached_children_menu(node, project)
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return nil unless node.child_menus
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"".html_safe.tap do |child_html|
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unattached_children = node.child_menus.call(project)
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# Tree nodes support #each so we need to do object detection
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if unattached_children.is_a? Array
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unattached_children.each do |child|
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child_html << content_tag(:li, render_unattached_menu_item(child, project))
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end
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else
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raise MenuError, ":child_menus must be an array of MenuItems"
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end
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end
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end
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def render_single_menu_node(item, caption, url, selected)
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link_to(h(caption), url, item.html_options(:selected => selected))
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end
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def render_unattached_menu_item(menu_item, project)
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raise MenuError, ":child_menus must be an array of MenuItems" unless menu_item.is_a? MenuItem
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if User.current.allowed_to?(menu_item.url, project)
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link_to(h(menu_item.caption),
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menu_item.url,
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menu_item.html_options)
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end
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end
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def menu_items_for(menu, project=nil)
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items = []
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Redmine::MenuManager.items(menu).root.children.each do |node|
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if allowed_node?(node, User.current, project)
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if block_given?
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yield node
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else
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items << node # TODO: not used?
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end
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end
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end
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return block_given? ? nil : items
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end
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def extract_node_details(node, project=nil)
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item = node
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url = case item.url
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when Hash
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project.nil? ? item.url : {item.param => project}.merge(item.url)
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when Symbol
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send(item.url)
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else
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item.url
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end
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caption = item.caption(project)
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return [caption, url, (current_menu_item == item.name)]
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end
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# Checks if a user is allowed to access the menu item by:
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#
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# * Checking the url target (project only)
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# * Checking the conditions of the item
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def allowed_node?(node, user, project)
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if project && user && !user.allowed_to?(node.url, project)
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return false
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end
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if node.condition && !node.condition.call(project)
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# Condition that doesn't pass
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return false
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end
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return true
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end
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end
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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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@items[menu_name.to_sym] || MenuNode.new(:root, {})
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end
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end
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class Mapper
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def initialize(menu, items)
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items[menu] ||= MenuNode.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| [Redmine::MenuManager::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(name, url, options={})
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options = options.dup
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if options[:parent]
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subtree = self.find(options[:parent])
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if subtree
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target_root = subtree
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else
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target_root = @menu_items.root
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end
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else
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target_root = @menu_items.root
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end
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# menu item position
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if first = options.delete(:first)
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target_root.prepend(MenuItem.new(name, url, options))
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elsif before = options.delete(:before)
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if exists?(before)
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target_root.add_at(MenuItem.new(name, url, options), position_of(before))
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else
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target_root.add(MenuItem.new(name, url, options))
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end
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elsif after = options.delete(:after)
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if exists?(after)
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target_root.add_at(MenuItem.new(name, url, options), position_of(after) + 1)
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else
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target_root.add(MenuItem.new(name, url, options))
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end
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elsif options[:last] # don't delete, needs to be stored
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target_root.add_last(MenuItem.new(name, url, options))
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else
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target_root.add(MenuItem.new(name, url, options))
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end
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end
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# Removes a menu item
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def delete(name)
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if found = self.find(name)
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@menu_items.remove!(found)
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end
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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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class MenuNode
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include Enumerable
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attr_accessor :parent
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attr_reader :last_items_count, :name
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def initialize(name, content = nil)
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@name = name
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@children = []
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@last_items_count = 0
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end
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def children
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if block_given?
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@children.each {|child| yield child}
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else
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@children
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end
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end
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# Returns the number of descendants + 1
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def size
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@children.inject(1) {|sum, node| sum + node.size}
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end
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def each &block
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yield self
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children { |child| child.each(&block) }
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end
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# Adds a child at first position
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def prepend(child)
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add_at(child, 0)
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end
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# Adds a child at given position
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def add_at(child, position)
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raise "Child already added" if find {|node| node.name == child.name}
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@children = @children.insert(position, child)
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child.parent = self
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child
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end
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# Adds a child as last child
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def add_last(child)
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add_at(child, -1)
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@last_items_count += 1
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child
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end
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# Adds a child
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def add(child)
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position = @children.size - @last_items_count
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add_at(child, position)
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end
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alias :<< :add
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# Removes a child
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def remove!(child)
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@children.delete(child)
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@last_items_count -= +1 if child && child.last
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child.parent = nil
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child
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end
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# Returns the position for this node in it's parent
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def position
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self.parent.children.index(self)
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end
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# Returns the root for this node
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def root
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root = self
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root = root.parent while root.parent
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root
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end
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end
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class MenuItem < MenuNode
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include Redmine::I18n
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attr_reader :name, :url, :param, :condition, :parent, :child_menus, :last
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def initialize(name, url, options)
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raise ArgumentError, "Invalid option :if for menu item '#{name}'" if options[:if] && !options[:if].respond_to?(:call)
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raise ArgumentError, "Invalid option :html for menu item '#{name}'" if options[:html] && !options[:html].is_a?(Hash)
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raise ArgumentError, "Cannot set the :parent to be the same as this item" if options[:parent] == name.to_sym
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raise ArgumentError, "Invalid option :children for menu item '#{name}'" if options[:children] && !options[:children].respond_to?(:call)
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@name = name
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@url = url
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@condition = options[:if]
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@param = options[:param] || :id
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@caption = options[:caption]
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@html_options = options[:html] || {}
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# Adds a unique class to each menu item based on its name
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@html_options[:class] = [@html_options[:class], @name.to_s.dasherize].compact.join(' ')
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@parent = options[:parent]
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@child_menus = options[:children]
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@last = options[:last] || false
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super @name.to_sym
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end
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def caption(project=nil)
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if @caption.is_a?(Proc)
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c = @caption.call(project).to_s
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c = @name.to_s.humanize if c.blank?
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c
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else
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if @caption.nil?
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l_or_humanize(name, :prefix => 'label_')
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else
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@caption.is_a?(Symbol) ? l(@caption) : @caption
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end
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end
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end
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def html_options(options={})
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if options[:selected]
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o = @html_options.dup
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o[:class] += ' selected'
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o
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else
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@html_options
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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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