ja_templatetools.php

Joomla!是一套获得过多个奖项的内容管理系统(Content Management System, CMS)。Joomla!采用PHP+MySQL数据库开发

<?php
define ('JA_TOOL_COLOR', 'ja_color');
define ('JA_TOOL_SCREEN', 'ja_screen');
define ('JA_TOOL_FONT', 'ja_font');
define ('JA_TOOL_MENU', 'ja_menu');

class JA_Tools {
	var $_params_cookie = null; //Params will store in cookie for user select. Default: store all params
	var $_tpl = null;
	var $template = '';

	function JA_Tools ($template, $_params_cookie=null) {
		$this->_tpl = $template;
		$this->template = $template->template;

		if(!$_params_cookie) {
			$this->_params_cookie = $this->_tpl->params->toArray();
		} else {
			foreach ($_params_cookie as $k) {
				$this->_params_cookie[$k] = $this->_tpl->params->get($k);
			}
		}

		$this->getUserSetting();
	}

	function getUserSetting(){
		$exp = time() + 60*60*24*355;
		if (isset($_COOKIE[$this->template.'_tpl']) && $_COOKIE[$this->template.'_tpl'] == $this->template){
			foreach($this->_params_cookie as $k=>$v) {
				$kc = $this->template."_".$k;
				if (isset($_GET[$k])){
					$v = $_GET[$k];
					setcookie ($kc, $v, $exp, '/');
				}else{
					if (isset($_COOKIE[$kc])){
						$v = $_COOKIE[$kc];
					}
				}
				$this->setParam($k, $v);
			}

		}else{
			setcookie ($this->template.'_tpl', $this->template, $exp, '/');
		}
		return $this;
	}

	function getParam ($param, $default='') {
		if (isset($this->_params_cookie[$param])) {
			return $this->_params_cookie[$param];
		}
		return $this->_tpl->params->get($param, $default);
	}

	function setParam ($param, $value) {
		$this->_params_cookie[$param] = $value;
	}

	function getCurrentURL(){
		$cururl = JRequest::getURI();
		if(($pos = strpos($cururl, "index.php"))!== false){
			$cururl = substr($cururl,$pos);
		}
		$cururl =  JRoute::_($cururl, true, 0);
		return $cururl;
	}

	function genToolMenu($_array_tools=null, $imgext = 'gif'){
		if(!is_array($_array_tools)) $_array_tools = array($_array_tools);
		if(!$_array_tools) $_array_tools = array_keys($this->_params_cookie);
		if (in_array(JA_TOOL_FONT, $_array_tools)){//show font tools
		?>
		<ul class="ja-usertools-font">
	      <li><img style="cursor: pointer;" title="<?php echo JText::_('Increase font size');?>" src="<?php echo $this->templateurl();?>/images/user-increase.<?php echo $imgext;?>" alt="<?php echo JText::_('Increase font size');?>" id="ja-tool-increase" onclick="switchFontSize('<?php echo $this->template."_".JA_TOOL_FONT;?>','inc'); return false;" /></li>
		  <li><img style="cursor: pointer;" title="<?php echo JText::_('Default font size');?>" src="<?php echo $this->templateurl();?>/images/user-reset.<?php echo $imgext;?>" alt="<?php echo JText::_('Default font size');?>" id="ja-tool-reset" onclick="switchFontSize('<?php echo $this->template."_".JA_TOOL_FONT;?>',<?php echo $this->_tpl->params->get(JA_TOOL_FONT);?>); return false;" /></li>
		  <li><img style="cursor: pointer;" title="<?php echo JText::_('Decrease font size');?>" src="<?php echo $this->templateurl();?>/images/user-decrease.<?php echo $imgext;?>" alt="<?php echo JText::_('Decrease font size');?>" id="ja-tool-decrease" onclick="switchFontSize('<?php echo $this->template."_".JA_TOOL_FONT;?>','dec'); return false;" /></li>
		</ul>
		<script type="text/javascript">var CurrentFontSize=parseInt('<?php echo $this->getParam(JA_TOOL_FONT);?>');</script>
		<?php
		}
	}

	function getCurrentMenuIndex(){
		$Itemid = JRequest::getInt( 'Itemid');
		$database		=& JFactory::getDBO();
		$id = $Itemid;
		$menutype = 'mainmenu';
		$ordering = '0';
		while (1){
			$sql = "select parent, menutype, ordering from #__menu where id = $id limit 1";
			$database->setQuery($sql);
			$row = null;
			$row = $database->loadObject();
			if ($row) {
				$menutype = $row->menutype;
				$ordering = $row->ordering;
				if ($row->parent > 0)
				{
					$id = $row->parent;
				}else break;
			}else break;
		}

		$user	=& JFactory::getUser();
		if (isset($user))
		{
			$aid = $user->get('aid', 0);
			$sql = "SELECT count(*) FROM #__menu AS m"
			. "\nWHERE menutype='". $menutype ."' AND published='1' AND access <= '$aid' AND parent=0 and ordering < $ordering";
		} else {
			$sql = "SELECT count(*) FROM #__menu AS m"
			. "\nWHERE menutype='". $menutype ."' AND published='1' AND parent=0 and ordering < $ordering";
		}
		$database->setQuery($sql);

		return $database->loadResult();
	}

	function calSpotlight ($spotlight, $totalwidth=100, $firstwidth=0) {

		/********************************************
		$spotlight = array ('position1', 'position2',...)
		*********************************************/
		$modules = array();
		$modules_s = array();
		foreach ($spotlight as $position) {
			if( $this->_tpl->countModules ($position) ){
				$modules_s[] = $position;
			}
			$modules[$position] = array('class'=>'-full', 'width'=>$totalwidth);
		}

		if (!count($modules_s)) return null;

		if ($firstwidth) {
			if (count($modules_s)>1) {
				$width = round(($totalwidth-$firstwidth)/(count($modules_s)-1),1) . "%";
				$firstwidth = $firstwidth . "%";
			}else{
				$firstwidth = $totalwidth . "%";
			}
		}else{
			$width = round($totalwidth/(count($modules_s)),1) . "%";
			$firstwidth = $width;
		}

		if (count ($modules_s) > 1){
			$modules[$modules_s[0]]['class'] = "-left";
			$modules[$modules_s[0]]['width'] = $firstwidth;
			$modules[$modules_s[count ($modules_s) - 1]]['class'] = "-right";
			$modules[$modules_s[count ($modules_s) - 1]]['width'] = $width;
			for ($i=1; $i<count ($modules_s) - 1; $i++){
				$modules[$modules_s[$i]]['class'] = "-center";
				$modules[$modules_s[$i]]['width'] = $width;
			}
		}
		return $modules;
	}

	function isIE6 () {
		return $this->browser() == 'IE6';
	}

	function baseurl(){
		return JURI::base();
	}

	function templateurl(){
		return JURI::base()."templates/".$this->template;
	}

	function getRandomImage ($img_folder) {
		$imglist=array();

		mt_srand((double)microtime()*1000);

		//use the directory class
		$imgs = dir($img_folder);

		//read all files from the  directory, checks if are images and ads them to a list (see below how to display flash banners)
		while ($file = $imgs->read()) {
			if (eregi("gif", $file) || eregi("jpg", $file) || eregi("png", $file))
				$imglist[] = $file;
		}
		closedir($imgs->handle);

		if(!count($imglist)) return '';

		//generate a random number between 0 and the number of images
		$random = mt_rand(0, count($imglist)-1);
		$image = $imglist[$random];

		return $image;
	}

	function isFrontPage(){
		return (JRequest::getCmd( 'view' ) == 'frontpage') ;
	}

	function sitename() {
		$config = new JConfig();
		return $config->sitename;
	}

	function browser () {
		$agent = $_SERVER['HTTP_USER_AGENT'];
		if ( strpos($agent, 'Gecko') )
		{
		   if ( strpos($agent, 'Netscape') )
		   {
		     $browser = 'NS';
		   }
		   else if ( strpos($agent, 'Firefox') )
		   {
		     $browser = 'FF';
		   }
		   else
		   {
		     $browser = 'Moz';
		   }
		}
		else if ( strpos($agent, 'MSIE') && !preg_match('/opera/i',$agent) )
		{
			 $msie='/msie\s(7\.[0-9]).*(win)/i';
		   	 if (preg_match($msie,$agent)) $browser = 'IE7';
		   	 else $browser = 'IE6';
		}
		else if ( preg_match('/opera/i',$agent) )
		{
		     $browser = 'OPE';
		}
		else
		{
		   $browser = 'Others';
		}
		return $browser;
	}
}
?>