<?php
/**
* Wave Framework <http://github.com/kristovaher/Wave-Framework>
* View Controller
*
* Wave Framework comes with a View Controller and a translations system that is used to build
* a website on Wave Framework. This View Controller is entirely optional and can be removed
* from a system if you plan to implement your own View Controller or simply use Wave Framework
* for API, without a website.
*
* @package Tools
* @author Kristo Vaher <kristo@waher.net>
* @copyright Copyright (c) 2012, Kristo Vaher
* @license GNU Lesser General Public License Version 3
* @tutorial /doc/pages/guide_view.htm
* @since 1.0.0
* @version 3.7.2
*/
class WWW_controller_view extends WWW_Factory {
/**
* This method is called by Data Handler to render View contents based on values from
* URL Controller.
*
* @param array $input input data sent to controller
* @input mixed input data from URL Controller output
* @return null
*/
public function load($input){
// Unsetting input data that are only used by API and are accessible elsewhere by the user
unset($input['www-command'],$input['www-return-type'],$input['www-cache-timeout'],$input['www-cache-load-timeout'],$input['www-request'],$input['www-session'],$input['www-cache-tags']);
// Getting view information
$view=$this->viewData();
$systemRoot=$this->getState('directory-system');
// If PHP libraries are set to be loaded, then loading them through Factory
if(isset($view['additional-php']) && $view['additional-php']!=''){
// Libraries are in a comma-separated list
$libraries=explode(',',$view['additional-php']);
foreach($libraries as $l){
if(file_exists($systemRoot.'overrides'.DIRECTORY_SEPARATOR.'resources'.DIRECTORY_SEPARATOR.'scripts'.DIRECTORY_SEPARATOR.$l.'.php')){
// Requiring override file
require($systemRoot.'overrides'.DIRECTORY_SEPARATOR.'resources'.DIRECTORY_SEPARATOR.'scripts'.DIRECTORY_SEPARATOR.$l.'.php');
} else {
// Requiring original file
require($systemRoot.'resources'.DIRECTORY_SEPARATOR.'scripts'.DIRECTORY_SEPARATOR.$l.'.php');
}
}
}
// Checking for view-specific PHP script
if(file_exists($systemRoot.'resources'.DIRECTORY_SEPARATOR.'scripts'.DIRECTORY_SEPARATOR.$view['view'].'.script.php')){
if(file_exists($systemRoot.'overrides'.DIRECTORY_SEPARATOR.'resources'.DIRECTORY_SEPARATOR.'scripts'.DIRECTORY_SEPARATOR.$view['view'].'.script.php')){
// Requiring override file
require($systemRoot.'overrides'.DIRECTORY_SEPARATOR.'resources'.DIRECTORY_SEPARATOR.'scripts'.DIRECTORY_SEPARATOR.$view['view'].'.script.php');
} else {
// Requiring original file
require($systemRoot.'resources'.DIRECTORY_SEPARATOR.'scripts'.DIRECTORY_SEPARATOR.$view['view'].'.script.php');
}
}
// Getting current view and creating view object
$viewObject=$this->getView($view['view']);
// Getting author and copyright, if set in configuration
$author=$this->getState('project-author');
$copyright=$this->getState('project-copyright');
// Meta title can be set in Sitemap and can also be different based on
if(isset($view['meta-title'])){
// Here you should add your custom meta title loading, if necessary
if(method_exists($viewObject,'getTitle')){
$prependTitle=$viewObject->getTitle($view);
// Title is only appended if it exists and is not empty
if($prependTitle && $prependTitle!=''){
$view['meta-title'].=$prependTitle.' - '.$view['meta-title'];
}
}
} else {
// Project title is an empty string, if it was not defined
$view['meta-title']='';
}
// Project title will be added to the end, if it is set
if($view['project-title']!=''){
if($view['meta-title']!=''){
$view['meta-title'].=' - '.$view['project-title'];
} else {
$view['meta-title']=$view['project-title'];
}
}
// List of CSS Stylesheets to load from resources folder
// These scripts will all be unified to a single CSS
$coreStyleSheet=array();
$coreStyleSheet[]='reset.css';
$coreStyleSheet[]='style.css';
// If Sitemap file has defined additional external CSS stylesheets
if(isset($view['external-css']) && $view['external-css']!=''){
$externalStylesheet=explode(',',$view['external-css']);
}
// If Sitemap file has defined additional CSS files
if(isset($view['additional-css']) && $view['additional-css']!=''){
$additionalStylesheet=explode(',',$view['additional-css']);
foreach($additionalStylesheet as $key=>$file){
$additionalStylesheet[$key]=$file.'.css';
}
}
// Module-specific Stylesheets is can also be loaded
if(file_exists($systemRoot.'resources'.DIRECTORY_SEPARATOR.'styles'.DIRECTORY_SEPARATOR.$view['view'].'.style.css')){
$moduleStylesheet=$view['view'].'.style.css';
}
// List of JavaScript to load from resources folder
// These scripts will all be unified to a single JavaScript
$coreJavaScript=array();
$coreJavaScript[]='jquery.js';
$coreJavaScript[]='script.js';
// These files do not have to be in /resources/ folder and are loaded from engine folder instead
$coreJavaScript[]='class.www-wrapper.js';
$coreJavaScript[]='class.www-factory.js';
// If Sitemap file has defined additional external JavaScript libraries
if(isset($view['external-js']) && $view['external-js']!=''){
$externalJavaScript=explode(',',$view['external-js']);
}
// If Sitemap file has defined additional JavaScript libraries
if(isset($view['additional-js']) && $view['additional-js']!=''){
$additionalJavaScript=explode(',',$view['additional-js']);
foreach($additionalJavaScript as $key=>$library){
$additionalJavaScript[$key]=$library.'.js';
}
}
// Module-specific JavaScript is can also be loaded
if(file_exists($systemRoot.'resources'.DIRECTORY_SEPARATOR.'scripts'.DIRECTORY_SEPARATOR.$view['view'].'.script.js')){
$moduleJavaScript=$view['view'].'.script.js';
}
// Rendering the view object and capturing the output
ob_start();
$method=$view['view-method'];
$viewObject->$method($input);
$viewContent=ob_get_clean();
// Header collector data for view
$viewHeaders=$this->getState('view-headers');
// HTML frame is generated with meta data and resource files
?>
<!DOCTYPE html>
<html lang="<?=$this->getState('language')?>" <?=(isset($view['appcache']) && $view['appcache']==1)?'manifest="'.$this->getState('url-base').'manifest.appcache"':''?>>
<head>
<title><?=$view['meta-title']?></title>
<!-- Base address for relative links -->
<base href="<?=$this->getState('url-base')?>"/>
<!-- UTF-8 -->
<meta charset="utf-8">
<!-- Useful for mobile applications -->
<meta name="viewport" content="width=device-width"/>
<?php if($view['robots']!=''){ ?>
<!-- Robots -->
<meta name="robots" content="<?=$view['robots']?>"/>
<?php } ?>
<!-- Content information -->
<?php if(isset($view['meta-keywords'])){ ?>
<meta name="Keywords" content="<?=$view['meta-keywords']?>"/>
<?php } ?>
<?php if(isset($view['meta-description'])){ ?>
<meta name="Description" content="<?=$view['meta-description']?>"/>
<?php } ?>
<?php if($author){ ?>
<meta name="Author" content="<?=$author?>"/>
<?php } ?>
<?php if($copyright){ ?>
<meta name="Copyright" content="<?=$copyright?>"/>
<?php } ?>
<!-- Stylesheets -->
<link type="text/css" href="resources/styles/<?=implode('&',$coreStyleSheet)?>" rel="stylesheet" media="all"/>
<?php if(isset($externalStylesheet)){ ?>
<?php foreach($externalStylesheet as $style){ ?>
<link type="text/css" href="<?=implode('&',$style)?>" rel="stylesheet" media="all"/>
<?php } ?>
<?php } ?>
<?php if(isset($additionalStylesheet)){ ?>
<link type="text/css" href="resources/styles/<?=implode('&',$additionalStylesheet)?>" rel="stylesheet" media="all"/>
<?php } ?>
<?php if(isset($moduleStylesheet)){ ?>
<link type="text/css" href="resources/styles/<?=$moduleStylesheet?>" rel="stylesheet" media="all"/>
<?php } ?>
<?php if(isset($viewHeaders['style'])){ ?>
<link type="text/css" href="resources/styles/<?=implode('&',$viewHeaders['style'])?>" rel="stylesheet" media="all"/>
<?php } ?>
<!-- Favicons -->
<link rel="icon" href="favicon.ico" type="image/x-icon"/>
<link rel="icon" href="favicon.ico" type="image/vnd.microsoft.icon"/>
<!-- JavaScript -->
<script type="text/javascript" src="resources/scripts/<?=implode('&',$coreJavaScript)?>"></script>
<?php if(isset($externalJavaScript)){ ?>
<?php foreach($externalJavaScript as $script){ ?>
<script type="text/javascript" src="<?=$script?>"></script>
<?php } ?>
<?php } ?>
<?php if(isset($viewHeaders['library'])){ ?>
<?php foreach($viewHeaders['library'] as $library){ ?>
<script type="text/javascript" src="resources/libraries/<?=$library?>"></script>
<?php } ?>
<?php } ?>
<?php if(isset($additionalJavaScript)){ ?>
<script type="text/javascript" src="resources/scripts/<?=implode('&',$additionalJavaScript)?>"></script>
<?php } ?>
<?php if(isset($moduleJavaScript)){ ?>
<script type="text/javascript" src="resources/scripts/<?=$moduleJavaScript?>"></script>
<?php } ?>
<?php if(isset($viewHeaders['script'])){ ?>
<script type="text/javascript" src="resources/scripts/<?=implode('&',$viewHeaders['script'])?>"></script>
<?php } ?>
<?php if(isset($viewHeaders['other'])){ ?>
<?php foreach($viewHeaders['other'] as $other){ ?>
<?=$other?>
<?php } ?>
<?php } ?>
</head>
<body>
<?php
// View content is rendered
echo $viewContent;
?>
</body>
</html>
<?php
// API will load result data from output buffer
return null;
}
}
?>
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