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// file : brep/page.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <brep/page>
#include <utility> // move()
#include <algorithm> // min()
#include <xml/serializer>
#include <web/xhtml>
using namespace std;
using namespace xml;
using namespace web::xhtml;
namespace brep
{
// pager
//
pager::
pager (size_t current_page,
size_t item_count,
size_t item_per_page,
size_t page_number_count,
get_url_type get_url)
: current_page_ (current_page),
item_count_ (item_count),
item_per_page_ (item_per_page),
page_number_count_ (page_number_count),
get_url_ (move (get_url))
{
}
void pager::
operator() (serializer& s) const
{
if (item_count_ == 0 || item_per_page_ == 0)
return;
size_t pc (item_count_ / item_per_page_); // Page count.
if (item_count_ % item_per_page_)
++pc;
if (pc > 1)
{
// Can consider customizing class names if use-case appear.
//
s << DIV(CLASS="pager");
if (current_page_ > 0)
s << A(CLASS="pg-prev")
<< HREF << get_url_ (current_page_ - 1) << ~HREF
<< "<<"
<< ~A
<< " ";
if (page_number_count_)
{
size_t offset (page_number_count_ / 2);
size_t fp (current_page_ > offset ? current_page_ - offset : 0);
size_t tp (min (fp + page_number_count_, pc));
for (size_t p (fp); p < tp; ++p)
{
if (p == current_page_)
s << SPAN(CLASS="pg-cpage")
<< p + 1
<< ~SPAN;
else
s << A(CLASS="pg-page")
<< HREF << get_url_ (p) << ~HREF
<< p + 1
<< ~A;
s << " ";
}
}
if (current_page_ < pc - 1)
s << A(CLASS="pg-next")
<< HREF << get_url_ (current_page_ + 1) << ~HREF
<< ">>"
<< ~A;
s << ~DIV;
}
}
// pager_style
//
void pager_style::
operator() (xml::serializer& s) const
{
const char* ident ("\n ");
s << ".pager {margin: 0.5em 0 0;}" << ident
<< ".pg-prev {padding: 0 0.3em 0 0;}" << ident
<< ".pg-page {padding: 0 0.3em 0 0;}" << ident
<< ".pg-cpage {padding: 0 0.3em 0 0; font-weight: bold;}";
}
}
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