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Contents
module Carnival
class Paginator
def initialize(current_page, last_page, max_fast_pages = 5)
@current_page = current_page
@last_page = last_page >= 1 ? last_page : 1
@max_fast_pages = max_fast_pages
end
def fast_pages_links_indexes
fast_page_links = []
first_index = -(@max_fast_pages/2)
while fast_page_links.size < @max_fast_pages do
fast_page = @current_page + first_index
break if fast_page > @last_page
fast_page_links << fast_page if fast_page > 0
first_index = first_index + 1
end
fast_page_links
end
def fast_pages_links_html
fast_pages_links_indexes.map do |page|
{:label => page, :css_class => get_css_class(page), :js_function => get_js_function(page)}
end
end
def get_js_function page
"javascript:Carnival.goToPage(#{page})"
end
def get_css_class page
if page == @current_page
'carnival-selected-page-button'
else
'carnival-page-button'
end
end
def previous_page
if @current_page - 1 < 1
@current_page
else
@current_page - 1
end
end
def next_page
if @current_page + 1 > @last_page
@current_page
else
@current_page + 1
end
end
def pages
htmls = []
htmls << {:label => ('paginate_first'), :js_function => get_js_function(1)}
htmls << {:label => ('paginate_previous'), :js_function => get_js_function(previous_page)}
htmls = htmls + fast_pages_links_html
htmls << {:label => ('paginate_next'), :js_function => get_js_function(next_page)}
htmls << {:label => ('paginate_last'), :js_function => get_js_function(@last_page)}
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems