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<?php //$Id$

//This file is part of DeforaOS Web DaPortal

//This program is free software: you can redistribute it and/or modify

//it under the terms of the GNU General Public License as published by

//the Free Software Foundation, version 3 of the License.

//This program is distributed in the hope that it will be useful,

//but WITHOUT ANY WARRANTY; without even the implied warranty of

//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

//GNU General Public License for more details.

//You should have received a copy of the GNU General Public License

//along with this program. If not, see <http://www.gnu.org/licenses/>.

//XMLFormat

class XMLFormat extends PlainFormat

{

//protected

//properties

protected $encoding = FALSE;

protected $print = FALSE;

//methods

//essential

//XMLFormat::match

protected function match(Engine $engine, $type = FALSE)

{

switch($type)

{

case 'application/xml':

case 'text/xml':

return 100;

default:

return 0;

}

//XMLFormat::attach

protected function attach(Engine $engine, $type = FALSE)

{

global $config;

if(($this->encoding = $config->get('defaults', 'charset'))

=== FALSE)

$this->encoding = ini_get('default_charset');

if($this->encoding == '')

$this->encoding = FALSE;

//for escaping

if(!defined('ENT_HTML401'))

define('ENT_HTML401', 0);

if(!defined('ENT_XML'))

define('ENT_XML', ENT_HTML401);

}

//public

//methods

//rendering

//XMLFormat::render

public function render(Engine $engine, PageElement $page,

$filename = FALSE)

{

//FIXME ignore filename for the moment

if($page === FALSE)

$page = new Page;

$this->engine = $engine;

print('<?xml version="1.0"');

if($this->encoding !== FALSE)

print(' encoding="'

.$this->escapeAttribute($this->encoding).'"');

print("?>\n");

print("<root>\n");

$this->renderElement($page);

print("</root>\n");

$this->engine = FALSE;

}

//protected

//methods

//printing

//XMLFormat::escape

protected function escape($text)

{

return htmlspecialchars($text,

ENT_COMPAT | ENT_XML | ENT_NOQUOTES,

$this->encoding);

}

//XMLFormat::escapeAttribute

protected function escapeAttribute($text)

{

return htmlspecialchars($text, ENT_COMPAT | ENT_XML,

$this->encoding);

}

//XMLFormat::print

protected function _print($string)

{

if($this->print)

print($string);

}

//rendering

//XMLFormat::renderData

protected function renderData(PageElement $e)

{

$from = ']]>';

$to = ']]]]><![CDATA[>';

print('<![CDATA[');

print(str_replace($from, $to, $e->getProperty('data')));

print(']]>');

}

//XMLFormat::renderElement

protected function renderElement(PageElement $e)

{

switch($e->getType())

{

case 'data':

return $this->renderData($e);

case 'treeview':

return $this->renderTreeview($e);

default:

return parent::renderElement($e);

}

//XMLFormat::renderInline

protected function renderInline(PageElement $e)

{

if(($text = $e->getProperty('text')) !== FALSE)

{

$this->_print($this->escape($this->separator.$text));

$this->separator = ' ';

}

$this->renderChildren($e);

}

//XMLFormat::renderLink

protected function renderLink(PageElement $e)

{

$this->_print('<link>');

if(($text = $e->getProperty('text')) !== FALSE

&& strlen($text) > 0)

$this->_print('<text>'.$this->escape($text).'</text>');

if(($url = $e->getProperty('url')) === FALSE

&& ($r = $e->getProperty('request')) !== FALSE)

{

$this->_print('<request>');

if(($module = $r->getModule()) !== FALSE)

$this->_print('<module>'.$this->escape($module)

.'</module>');

if(($action = $r->getAction()) !== FALSE)

$this->_print('<action>'.$this->escape($action)

.'</action>');

if(($id = $r->getID()) !== FALSE)

$this->_print('<id>'.$this->escape($id)

.'</id>');

if(($title = $r->getTitle()) !== FALSE)

$this->_print('<title>'.$this->escape($title)

.'</title>');

$this->_print('</request>');

$url = $this->engine->getURL($r);

}

if($url !== FALSE)

$this->_print('<url>'.$this->escape($url).'</url>');

$this->renderChildren($e);

$this->_print('</link>');

}

//XMLFormat::renderTreeview

protected function renderTreeview(PageElement $e)

{

$this->print = TRUE;

if(($columns = $e->getProperty('columns')) === FALSE)

$columns = array('title' => 'Title');

$keys = array_keys($columns);

$children = $e->getChildren();

foreach($children as $c)

{

if($c->getType() != 'row')

continue;

$this->_print("\t<entry>\n");

foreach($keys as $k)

if(($e = $c->getProperty($k)) === FALSE)

continue;

else if($e === TRUE)

$this->_print("\t\t<$k/>\n");

else if(is_string($e) || is_integer($e))

$this->_print("\t\t<$k>"

.$this->escape($e)

."</$k>\n");

else

{

$this->_print("\t\t<$k>");

//XXX needs escaping

$this->renderElement($e);

$this->_print("</$k>\n");

}

$this->_print("\t</entry>\n");

}

$this->print = FALSE;

}