84 lines
2.8 KiB
Text
84 lines
2.8 KiB
Text
[%# components/pagination.tt
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Pagination block. Call as follows:
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INCLUDE components/pagination.tt
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current => 1, # current page we're viewing
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total_pages => 5, # total number of pages this is split into
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Authors:
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Afuna <coder.dw@afunamatata.com>
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Copyright (c) 2015 by Dreamwidth Studios, LLC.
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This program is free software; you may redistribute it and/or modify it under
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the same terms as Perl itself. For a copy of the license, please reference
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'perldoc perlartistic' or 'perldoc perlgpl'.
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%]
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[%- IF total_pages > 1 -%]
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[% opts = {keep_args => 1};
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IF cur_args;
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opts.cur_args = cur_args;
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END %]
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<ul class="pagination">
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[% IF current > 1 %]
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[% opts.args = { page => (current - 1) } %]
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<li class="arrow"><a href="[% dw.create_url( path, opts ) %]">«</a></li>
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[% END %]
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[% IF total_pages <= 7 %]
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[%# If there's less than seven pages, print all of them. %]
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[%- INCLUDE print_pages range=[1..total_pages] -%]
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[% ELSE %]
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[%- # Time for weird math! There are three display possiblities:
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# 1) current page is near the start, so we have a big start block and small end
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# 2) current page is near the end, so we have a small start and big end
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# 3) current page is near neither, so we have a small start and end, and a center block
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# each setting will print 7 items - either:
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# 1) 5 pages, ellipsis, 1 page
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# 2) 1 page, ellipsis, 5 pages
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# 3) 1 page, ellipsis, 3 pages, ellipsis, 1 page
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end_range_start = total_pages - 4;
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start_range_end = 5; # 1 plus 4, as the end is last minus 4
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in_end_range = end_range_start < current;
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in_start_range = current < start_range_end;
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in_center_range = !(in_start_range || in_end_range); # both ends are collapsed
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start_range = in_start_range ? [1..start_range_end] : [1];
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end_range = in_end_range ? [end_range_start..total_pages] : [ total_pages] ;
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center_start = current - 1;
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center_end = current + 1;
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-%]
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[%- INCLUDE print_pages range=start_range -%]
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[%- INCLUDE print_ellipsis -%]
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[% IF in_center_range %]
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[%- INCLUDE print_pages range=[center_start..center_end] -%]
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[%- INCLUDE print_ellipsis -%]
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[% END %]
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[%- INCLUDE print_pages range=end_range -%]
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[% END %]
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[% IF current < total_pages %]
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[% opts.args = { page => (current + 1) } %]
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<li class="arrow"><a href="[% dw.create_url( path, opts) %]">»</a></li>
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[% END %]
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</ul>
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[%- END -%]
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[%- BLOCK print_pages -%]
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[%- FOREACH page_num = range -%]
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[% opts.args = { page => page_num } %]
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<li[% IF page_num == current %] class="current" [% END %]><a href="[% dw.create_url( path, opts ) %]">[% page_num %]</a></li>
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[%- END -%]
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[%- END -%]
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[%- BLOCK print_ellipsis -%]
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<li class="unavailable"><a href="">…</a></li>
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[%- END -%]
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