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<?php
/**
* Horde_Mobile_Renderer:: framework for mobile device markup
* renderers.
*
* $Horde: framework/Mobile/Mobile/Renderer.php,v 1.15.10.8 2006/01/01 21:28:26 jan Exp $
*
* Copyright 2002-2006 Chuck Hagenbuch <chuck@horde.org>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @since Horde 3.0
* @package Horde_Mobile
*/
class Horde_Mobile_Renderer extends Horde_Mobile {
var $_browser;
function Horde_Mobile_Renderer($browser = null)
{
if (is_null($browser)) {
$this->_browser = &new Browser();
} else {
$this->_browser = $browser;
}
}
function isBrowser($agent)
{
return $this->_browser->isBrowser($agent);
}
function hasQuirk($quirk)
{
return $this->_browser->hasQuirk($quirk);
}
/**
* Render any Horde_Mobile_element object. Looks for the
* appropriate rendering function in the renderer; if there isn't
* one, we ignore this element.
*
* @param Horde_Mobile_element $element The element to render.
*/
function renderElement(&$element)
{
$func = '_render' . ucfirst(str_replace('horde_mobile_', '', strtolower(get_class($element))));
if (method_exists($this, $func)) {
$this->$func($element);
}
}
function _renderBlock(&$block)
{
if (count($block->_elements)) {
echo '<p>';
foreach ($block->_elements as $blockElement) {
$this->renderElement($blockElement);
}
echo "</p>\n";
}
}
function _renderForm(&$form)
{
foreach ($form->_elements as $formElement) {
$this->renderElement($formElement);
}
}
function _renderTable(&$table)
{
foreach ($table->_rows as $row) {
$this->_renderRow($row);
}
}
function _renderRow(&$row)
{
echo '<tr>';
foreach ($row->_columns as $column) {
echo '<td>';
// Call create function for each cellelement that is a
// Horde_Mobile object.
if (!is_null($column)) {
$this->renderElement($column);
}
echo '</td>';
}
echo "</tr>\n";
}
/**
* Attempts to return a concrete Horde_Mobile_Renderer instance
* based on $type.
*
* @param string $type The kind of markup (html, hdml, wml) we want to
* generate.
* @param Browser $browser The Browser object to use.
* @param array $params A hash containing any options for the renderer.
*
* @return Horde_Mobile_Renderer The newly created concrete
* Horde_Mobile_Renderer instance, or a
* PEAR_Error object on an error.
*/
function &factory($type, $browser = null, $params = array())
{
$type = basename($type);
if (@file_exists(dirname(__FILE__) . '/Renderer/' . $type . '.php')) {
include_once dirname(__FILE__) . '/Renderer/' . $type . '.php';
} else {
@include_once 'Horde/Mobile/Renderer/' . $type . '.php';
}
$class = 'Horde_Mobile_Renderer_' . $type;
if (class_exists($class)) {
$renderer = &new $class($browser, $params);
} else {
$renderer = PEAR::raiseError('Class definition of ' . $class . ' not found.');
}
return $renderer;
}
/**
* Attempts to return a concrete Horde_Mobile_Renderer instance
* based on $type. It will only create a new instance if no
* renderer with the same parameters currently exists.
*
* @param string $type The kind of markup (html, hdml, wml) we want to
* generate.
* @param Browser $browser The Browser object to use.
* @param array $params A hash containing any options for the renderer.
*
* @return Horde_Mobile_Renderer The newly created concrete
* Horde_Mobile_Renderer instance, or a
* PEAR_Error object on an error.
*/
function &singleton($type, $browser = null, $params = array())
{
static $instances = array();
$signature = md5(serialize(array($type, $browser, $params)));
if (!isset($instances[$signature])) {
$instances[$signature] = &Horde_Mobile_Renderer::factory($type, $browser, $params);
}
return $instances[$signature];
}
}
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