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PHP Script  |  2006-05-01  |  9KB  |  346 lines
  1. <?php
  2. /* $Id: Theme_Manager.class.php,v 1.5.2.5 2006/05/02 09:28:57 nijel Exp $ */
  3. // vim: expandtab sw=4 ts=4 sts=4:
  4.  
  5. require_once('./libraries/Theme.class.php');
  6.  
  7. class PMA_Theme_Manager {
  8.  
  9.     /**
  10.      * @var string path to theme folder
  11.      * @protected
  12.      */
  13.     var $_themes_path;
  14.  
  15.     /**
  16.      * @var array available themes
  17.      */
  18.     var $themes = array();
  19.  
  20.     /**
  21.      * @var string  cookie name
  22.      */
  23.     var $cookie_name = 'pma_theme';
  24.  
  25.     /**
  26.      * @var boolean
  27.      */
  28.     var $per_server = false;
  29.  
  30.     /**
  31.      * @var string name of active theme
  32.      */
  33.     var $active_theme = '';
  34.  
  35.     /**
  36.      * @var object PMA_Theme active theme
  37.      */
  38.     var $theme = null;
  39.  
  40.     /**
  41.      * @var string
  42.      */
  43.     var $theme_default = 'original';
  44.  
  45.     function __construct()
  46.     {
  47.         $this->init();
  48.     }
  49.  
  50.     /**
  51.      * sets path to folder containing the themes
  52.      *
  53.      * @param   string  $path   path to themes folder
  54.      * @return  boolean success
  55.      */
  56.     function setThemesPath($path)
  57.     {
  58.         if (! $this->_checkThemeFolder($path)) {
  59.             return false;
  60.         }
  61.  
  62.         $this->_themes_path = trim($path);
  63.         return true;
  64.     }
  65.  
  66.     /**
  67.      * @public
  68.      * @return  string
  69.      */
  70.     function getThemesPath()
  71.     {
  72.         return $this->_themes_path;
  73.     }
  74.  
  75.     /**
  76.      * sets if there are different themes per server
  77.      *
  78.      * @param   boolean $per_server
  79.      */
  80.     function setThemePerServer($per_server)
  81.     {
  82.         $this->per_server  = (bool) $per_server;
  83.     }
  84.  
  85.     function init()
  86.     {
  87.         $this->themes = array();
  88.         $this->theme_default = 'original';
  89.         $this->active_theme = '';
  90.  
  91.         if (! $this->setThemesPath($GLOBALS['cfg']['ThemePath'])) {
  92.             return false;
  93.         }
  94.  
  95.         $this->setThemePerServer($GLOBALS['cfg']['ThemePerServer']);
  96.  
  97.         $this->loadThemes();
  98.  
  99.         $this->theme = new PMA_Theme;
  100.  
  101.  
  102.         if ( ! $this->checkTheme($GLOBALS['cfg']['ThemeDefault'])) {
  103.             $GLOBALS['PMA_errors'][] = sprintf( $GLOBALS['strThemeDefaultNotFound'],
  104.                 $GLOBALS['cfg']['ThemeDefault'] );
  105.             trigger_error(
  106.                 sprintf($GLOBALS['strThemeDefaultNotFound'],
  107.                     $GLOBALS['cfg']['ThemeDefault']),
  108.                 E_USER_WARNING);
  109.             $GLOBALS['cfg']['ThemeDefault'] = false;
  110.         }
  111.  
  112.         $this->theme_default = $GLOBALS['cfg']['ThemeDefault'];
  113.  
  114.         // check if user have a theme cookie
  115.         if (! $this->getThemeCookie()
  116.           || ! $this->setActiveTheme($this->getThemeCookie())) {
  117.             // otherwise use default theme
  118.             if ($GLOBALS['cfg']['ThemeDefault']) {
  119.                 $this->setActiveTheme($GLOBALS['cfg']['ThemeDefault']);
  120.             } else {
  121.                 // or original theme
  122.                 $this->setActiveTheme('original');
  123.             }
  124.         }
  125.     }
  126.  
  127.     function checkConfig()
  128.     {
  129.         if ($this->_themes_path != trim($GLOBALS['cfg']['ThemePath'])
  130.          || $this->theme_default != $GLOBALS['cfg']['ThemeDefault']) {
  131.             $this->init();
  132.         }
  133.     }
  134.  
  135.     function setActiveTheme($theme = null)
  136.     {
  137.         if ( ! $this->checkTheme($theme)) {
  138.             $GLOBALS['PMA_errors'][] = sprintf($GLOBALS['strThemeNotFound'],
  139.                 PMA_sanitize($theme));
  140.             trigger_error(
  141.                 sprintf($GLOBALS['strThemeNotFound'], PMA_sanitize($theme)),
  142.                 E_USER_WARNING);
  143.             return false;
  144.         }
  145.  
  146.         $this->active_theme = $theme;
  147.         $this->theme = $this->themes[$theme];
  148.  
  149.         // need to set later
  150.         //$this->setThemeCookie();
  151.  
  152.         return true;
  153.     }
  154.  
  155.     /**
  156.      * @return  string  cookie name
  157.      */
  158.     function getThemeCookieName()
  159.     {
  160.         // Allow different theme per server
  161.         if (isset($GLOBALS['server']) && $this->per_server) {
  162.             return $this->cookie_name . '-' . $GLOBALS['server'];
  163.         } else {
  164.             return $this->cookie_name;
  165.         }
  166.     }
  167.  
  168.     /**
  169.      * returns name of theme stored in the cookie
  170.      * @return  string  theme name from cookie
  171.      */
  172.     function getThemeCookie()
  173.     {
  174.         if (isset($_COOKIE[$this->getThemeCookieName()])) {
  175.             return $_COOKIE[$this->getThemeCookieName()];
  176.         }
  177.  
  178.         return false;
  179.     }
  180.  
  181.     /**
  182.      * save theme in cookie
  183.      *
  184.      * @uses    PMA_setCookie();
  185.      * @uses    PMA_Theme_Manager::getThemeCookieName()
  186.      * @uses    PMA_Theme_Manager::$theme
  187.      * @uses    PMA_Theme_Manager::$theme_default
  188.      * @uses    PMA_Theme::getId()
  189.      */
  190.     function setThemeCookie()
  191.     {
  192.         PMA_setCookie($this->getThemeCookieName(), $this->theme->id,
  193.             $this->theme_default);
  194.         return true;
  195.     }
  196.  
  197.     /**
  198.      * old PHP 4 constructor
  199.      */
  200.     function PMA_Theme_Manager()
  201.     {
  202.         $this->__construct();
  203.     }
  204.  
  205.     /**
  206.      * @private
  207.      * @param   string $folder
  208.      * @return  boolean
  209.      */
  210.     /*private*/ function _checkThemeFolder($folder)
  211.     {
  212.         if (! is_dir($folder)) {
  213.             $GLOBALS['PMA_errors'][] =
  214.                 sprintf($GLOBALS['strThemePathNotFound'],
  215.                     htmlspecialchars($folder));
  216.             trigger_error(
  217.                 sprintf($GLOBALS['strThemePathNotFound'],
  218.                     htmlspecialchars($folder)),
  219.                 E_USER_WARNING);
  220.             return false;
  221.         }
  222.  
  223.         return true;
  224.     }
  225.  
  226.     /**
  227.      * read all themes
  228.      */
  229.     function loadThemes()
  230.     {
  231.         $this->themes = array();
  232.  
  233.         if ($handleThemes = opendir($this->getThemesPath())) {
  234.             // check for themes directory
  235.             while (false !== ($PMA_Theme = readdir($handleThemes))) {
  236.                 if (array_key_exists($PMA_Theme, $this->themes)) {
  237.                     $this->themes[$PMA_Theme] = $this->themes[$PMA_Theme];
  238.                     continue;
  239.                 }
  240.                 $new_theme = PMA_Theme::load($this->getThemesPath() . '/' . $PMA_Theme);
  241.                 if ($new_theme) {
  242.                     $new_theme->setId($PMA_Theme);
  243.                     $this->themes[$PMA_Theme] = $new_theme;
  244.                 }
  245.             } // end get themes
  246.             closedir($handleThemes);
  247.         } else {
  248.             trigger_error(
  249.                 'phpMyAdmin-ERROR: can not open themes folder: ' . $this->getThemesPath(),
  250.                 E_USER_WARNING);
  251.             return false;
  252.         } // end check for themes directory
  253.  
  254.         ksort($this->themes);
  255.         return true;
  256.     }
  257.  
  258.     /**
  259.      * checks if given theme name is a known theme
  260.      *
  261.      * @param   string  $theme  name fo theme to check for
  262.      */
  263.     function checkTheme($theme)
  264.     {
  265.         if (! array_key_exists($theme, $this->themes)) {
  266.             return false;
  267.         }
  268.  
  269.         return true;
  270.     }
  271.  
  272.     /**
  273.      * returns HTML selectbox, with or without form enclsoed
  274.      *
  275.      * @param   boolean $form   wether enclosed by from tags or not
  276.      */
  277.     function getHtmlSelectBox($form = true)
  278.     {
  279.         $select_box = '';
  280.  
  281.         if ($form) {
  282.             $select_box .= '<form name="setTheme" method="post" action="index.php"'
  283.                 .' target="_parent">';
  284.             $select_box .=  PMA_generate_common_hidden_inputs();
  285.         }
  286.  
  287.         $theme_selected = FALSE;
  288.         $theme_preview_path= './themes.php';
  289.         $theme_preview_href = '<a href="' . $theme_preview_path . '" target="themes" onclick="'
  290.                             . "window.open('" . $theme_preview_path . "','themes','left=10,top=20,width=510,height=350,scrollbars=yes,status=yes,resizable=yes');"
  291.                             . '">';
  292.         $select_box .=  $theme_preview_href . $GLOBALS['strTheme'] . '</a>:' . "\n";
  293.  
  294.         $select_box .=  '<select name="set_theme" xml:lang="en" dir="ltr"'
  295.             .' onchange="this.form.submit();" >';
  296.         foreach ($this->themes as $each_theme_id => $each_theme) {
  297.             $select_box .=  '<option value="' . $each_theme_id . '"';
  298.             if ($this->active_theme === $each_theme_id) {
  299.                 $select_box .=  ' selected="selected"';
  300.             }
  301.             $select_box .=  '>' . htmlspecialchars($each_theme->getName()) . '</option>';
  302.         }
  303.         $select_box .=  '</select>';
  304.  
  305.         if ($form) {
  306.             $select_box .=  '<noscript><input type="submit" value="' . $GLOBALS['strGo'] . '" /></noscript>';
  307.             $select_box .=  '</form>';
  308.         }
  309.  
  310.         return $select_box;
  311.     }
  312.  
  313.     /**
  314.      * enables backward compatibility
  315.      */
  316.     function makeBc()
  317.     {
  318.         $GLOBALS['theme']           = $this->theme->getId();
  319.         $GLOBALS['pmaThemePath']    = $this->theme->getPath();
  320.         $GLOBALS['pmaThemeImage']   = $this->theme->getImgPath();
  321.  
  322.         /**
  323.          * load layout file if exists
  324.          */
  325.         if (@file_exists($GLOBALS['pmaThemePath'] . 'layout.inc.php')) {
  326.             include $GLOBALS['pmaThemePath'] . 'layout.inc.php';
  327.         }
  328.  
  329.  
  330.     }
  331.  
  332.     /**
  333.      * prints out preview for every theme
  334.      *
  335.      * @uses    $this->themes
  336.      * @uses    PMA_Theme::printPreview()
  337.      */
  338.     function printPreviews()
  339.     {
  340.         foreach ($this->themes as $each_theme) {
  341.             $each_theme->printPreview();
  342.         } // end 'open themes'
  343.     }
  344. }
  345. ?>
  346.