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# -*- coding: utf-8 -*-
module Gtk
class ContextMenu
def initialize(*context)
reset(context) end
def reset(context)
@contextmenu = context
end
def registmenu(label, condition=ret_nth(), &callback)
@contextmenu = @contextmenu.push([label, condition, callback]) end
def registline
if block_given?
registmenu(nil, lambda{ |*a| yield *a }){ |a,b| }
else
registmenu(nil){ |a,b| } end end
# メニューが閉じられた時、自身を自動的に破棄する Gtk::Menu を作成して返す
def temporary_menu
menu = Gtk::Menu.new
menu.ssc(:selection_done) do
menu.destroy
false end
menu.ssc(:cancel) do
menu.destroy
false end
menu end
def build!(widget, optional, menu = temporary_menu)
@contextmenu.each{ |param|
label, cond, proc, icon = param
if cond.call(*[optional, widget][0, (cond.arity == -1 ? 1 : cond.arity)])
if label
label_text = defined?(label.call) ? label.call(*[optional, widget][0, (label.arity == -1 ? 1 : label.arity)]) : label
if icon.is_a? Proc
icon = icon.call(*[optional, widget][0, (icon.arity == -1 ? 1 : icon.arity)]) end
if icon
item = Gtk::ImageMenuItem.new(label_text)
item.set_image(Gtk::WebIcon.new(icon, 16, 16))
else
item = Gtk::MenuItem.new(label_text)
end
if proc
item.ssc('activate') { |w|
proc.call(*[optional, widget][0...proc.arity])
false } end
menu.append(item)
else
menu.append(Gtk::MenuItem.new) end end }
menu
end
def popup(widget, optional)
menu = build!(widget, optional)
if not menu.children.empty?
menu.attach_to_widget(widget) {|attach_widgt, mnu| notice "detached" }
menu.show_all.popup(nil, nil, 0, 0) end end
end
end
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