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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* phpMyAdmin theme manager
*
* @package PhpMyAdmin
*/
namespace PMA\libraries;
/**
* phpMyAdmin theme manager
*
* @package PhpMyAdmin
*/
class ThemeManager
{
/**
* @var string path to theme folder
* @access protected
*/
private $_themes_path;
/**
* @var array available themes
*/
var $themes = array();
/**
* @var string cookie name
*/
var $cookie_name = 'pma_theme';
/**
* @var boolean
*/
var $per_server = false;
/**
* @var string name of active theme
*/
var $active_theme = '';
/**
* @var Theme Theme active theme
*/
var $theme = null;
/**
* @var string
*/
var $theme_default;
/**
* @const string The name of the fallback theme
*/
const FALLBACK_THEME = 'pmahomme';
/**
* Constructor for Theme Manager class
*
* @access public
*/
public function __construct()
{
$this->init();
}
/**
* sets path to folder containing the themes
*
* @param string $path path to themes folder
*
* @access public
* @return boolean success
*/
public function setThemesPath($path)
{
if (! $this->_checkThemeFolder($path)) {
return false;
}
$this->_themes_path = trim($path);
return true;
}
/**
* Returns path to folder containing themes
*
* @access public
* @return string theme path
*/
public function getThemesPath()
{
return $this->_themes_path;
}
/**
* sets if there are different themes per server
*
* @param boolean $per_server Whether to enable per server flag
*
* @access public
* @return void
*/
public function setThemePerServer($per_server)
{
$this->per_server = (bool) $per_server;
}
/**
* Initialise the class
*
* @access public
* @return void
*/
public function init()
{
$this->themes = array();
$this->theme_default = self::FALLBACK_THEME;
$this->active_theme = '';
if (! $this->setThemesPath($GLOBALS['cfg']['ThemePath'])) {
return;
}
$this->setThemePerServer($GLOBALS['cfg']['ThemePerServer']);
$this->loadThemes();
$this->theme = new Theme;
if (! $this->checkTheme($GLOBALS['cfg']['ThemeDefault'])) {
trigger_error(
sprintf(
__('Default theme %s not found!'),
htmlspecialchars($GLOBALS['cfg']['ThemeDefault'])
),
E_USER_ERROR
);
$GLOBALS['cfg']['ThemeDefault'] = false;
}
$this->theme_default = $GLOBALS['cfg']['ThemeDefault'];
// check if user have a theme cookie
if (! $this->getThemeCookie()
|| ! $this->setActiveTheme($this->getThemeCookie())
) {
if ($GLOBALS['cfg']['ThemeDefault']) {
// otherwise use default theme
$this->setActiveTheme($this->theme_default);
} else {
// or fallback theme
$this->setActiveTheme(self::FALLBACK_THEME);
}
}
}
/**
* Checks configuration
*
* @access public
* @return void
*/
public function checkConfig()
{
if ($this->_themes_path != trim($GLOBALS['cfg']['ThemePath'])
|| $this->theme_default != $GLOBALS['cfg']['ThemeDefault']
) {
$this->init();
} else {
// at least the theme path needs to be checked every time for new
// themes, as there is no other way at the moment to keep track of
// new or removed themes
$this->loadThemes();
}
}
/**
* Sets active theme
*
* @param string $theme theme name
*
* @access public
* @return bool true on success
*/
public function setActiveTheme($theme = null)
{
if (! $this->checkTheme($theme)) {
trigger_error(
sprintf(
__('Theme %s not found!'),
htmlspecialchars($theme)
),
E_USER_ERROR
);
return false;
}
$this->active_theme = $theme;
$this->theme = $this->themes[$theme];
// need to set later
//$this->setThemeCookie();
return true;
}
/**
* Returns name for storing theme
*
* @return string cookie name
* @access public
*/
public function getThemeCookieName()
{
// Allow different theme per server
if (isset($GLOBALS['server']) && $this->per_server) {
return $this->cookie_name . '-' . $GLOBALS['server'];
} else {
return $this->cookie_name;
}
}
/**
* returns name of theme stored in the cookie
*
* @return string theme name from cookie
* @access public
*/
public function getThemeCookie()
{
if (isset($_COOKIE[$this->getThemeCookieName()])) {
return $_COOKIE[$this->getThemeCookieName()];
}
return false;
}
/**
* save theme in cookie
*
* @return bool true
* @access public
*/
public function setThemeCookie()
{
$GLOBALS['PMA_Config']->setCookie(
$this->getThemeCookieName(),
$this->theme->id,
$this->theme_default
);
// force a change of a dummy session variable to avoid problems
// with the caching of phpmyadmin.css.php
$GLOBALS['PMA_Config']->set('theme-update', $this->theme->id);
return true;
}
/**
* Checks whether folder is valid for storing themes
*
* @param string $folder Folder name to test
*
* @return boolean
* @access private
*/
private function _checkThemeFolder($folder)
{
if (! is_dir($folder)) {
trigger_error(
sprintf(
__('Theme path not found for theme %s!'),
htmlspecialchars($folder)
),
E_USER_ERROR
);
return false;
}
return true;
}
/**
* read all themes
*
* @return bool true
* @access public
*/
public function loadThemes()
{
$this->themes = array();
if (false === ($handleThemes = opendir($this->getThemesPath()))) {
trigger_error(
'phpMyAdmin-ERROR: cannot open themes folder: '
. $this->getThemesPath(),
E_USER_WARNING
);
return false;
}
// check for themes directory
while (false !== ($PMA_Theme = readdir($handleThemes))) {
// Skip non dirs, . and ..
if ($PMA_Theme == '.'
|| $PMA_Theme == '..'
|| ! is_dir($this->getThemesPath() . '/' . $PMA_Theme)
) {
continue;
}
if (array_key_exists($PMA_Theme, $this->themes)) {
continue;
}
$new_theme = Theme::load(
$this->getThemesPath() . '/' . $PMA_Theme
);
if ($new_theme) {
$new_theme->setId($PMA_Theme);
$this->themes[$PMA_Theme] = $new_theme;
}
} // end get themes
closedir($handleThemes);
ksort($this->themes);
return true;
}
/**
* checks if given theme name is a known theme
*
* @param string $theme name fo theme to check for
*
* @return bool
* @access public
*/
public function checkTheme($theme)
{
if (! array_key_exists($theme, $this->themes)) {
return false;
}
return true;
}
/**
* returns HTML selectbox, with or without form enclosed
*
* @param boolean $form whether enclosed by from tags or not
*
* @return string
* @access public
*/
public function getHtmlSelectBox($form = true)
{
$select_box = '';
if ($form) {
$select_box .= '<form name="setTheme" method="get"';
$select_box .= ' action="index.php" class="disableAjax">';
$select_box .= PMA_URL_getHiddenInputs();
}
$theme_preview_path= './themes.php';
$theme_preview_href = '<a href="'
. $theme_preview_path . '" target="themes" class="themeselect">';
$select_box .= $theme_preview_href . __('Theme:') . '</a>' . "\n";
$select_box .= '<select name="set_theme" lang="en" dir="ltr"'
. ' class="autosubmit">';
foreach ($this->themes as $each_theme_id => $each_theme) {
$select_box .= '<option value="' . $each_theme_id . '"';
if ($this->active_theme === $each_theme_id) {
$select_box .= ' selected="selected"';
}
$select_box .= '>' . htmlspecialchars($each_theme->getName())
. '</option>';
}
$select_box .= '</select>';
if ($form) {
$select_box .= '</form>';
}
return $select_box;
}
/**
* enables backward compatibility
*
* @return void
* @access public
*/
public function makeBc()
{
$GLOBALS['theme'] = $this->theme->getId();
$GLOBALS['pmaThemePath'] = $this->theme->getPath();
$GLOBALS['pmaThemeImage'] = $this->theme->getImgPath();
/**
* load layout file if exists
*/
if (file_exists($this->theme->getLayoutFile())) {
include $this->theme->getLayoutFile();
}
}
/**
* Renders the previews for all themes
*
* @return string
* @access public
*/
public function getPrintPreviews()
{
$retval = '';
foreach ($this->themes as $each_theme) {
$retval .= $each_theme->getPrintPreview();
} // end 'open themes'
return $retval;
}
/**
* returns Theme object for fall back theme
*
* @return Theme fall back theme
* @access public
*/
public function getFallBackTheme()
{
if (isset($this->themes[self::FALLBACK_THEME])) {
return $this->themes[self::FALLBACK_THEME];
}
return false;
}
/**
* prints css data
*
* @return bool
* @access public
*/
public function printCss()
{
if ($this->theme->loadCss()) {
return true;
}
// if loading css for this theme failed, try default theme css
$fallback_theme = $this->getFallBackTheme();
if ($fallback_theme && $fallback_theme->loadCss()) {
return true;
}
return false;
}
/**
* Theme initialization
*
* @return void
* @access public
*/
public static function initializeTheme()
{
/**
* @global ThemeManager $_SESSION['ThemeManager']
*/
if (! isset($_SESSION['PMA_Theme_Manager'])) {
$_SESSION['PMA_Theme_Manager'] = new ThemeManager;
} else {
/**
* @todo move all __wakeup() functionality into session.inc.php
*/
$_SESSION['PMA_Theme_Manager']->checkConfig();
}
// for the theme per server feature
if (isset($_REQUEST['server']) && ! isset($_REQUEST['set_theme'])) {
$GLOBALS['server'] = $_REQUEST['server'];
$tmp = $_SESSION['PMA_Theme_Manager']->getThemeCookie();
if (empty($tmp)) {
$tmp = $_SESSION['PMA_Theme_Manager']->theme_default;
}
$_SESSION['PMA_Theme_Manager']->setActiveTheme($tmp);
}
/**
* @todo move into ThemeManager::__wakeup()
*/
if (isset($_REQUEST['set_theme'])) {
// if user selected a theme
$_SESSION['PMA_Theme_Manager']->setActiveTheme($_REQUEST['set_theme']);
}
/**
* the theme object
*
*@global Theme $_SESSION['PMA_Theme']
*/
$_SESSION['PMA_Theme'] = $_SESSION['PMA_Theme_Manager']->theme;
// BC
/**
* the active theme
* @global string $GLOBALS['theme']
*/
$GLOBALS['theme'] = $_SESSION['PMA_Theme']->getName();
/**
* the theme path
* @global string $GLOBALS['pmaThemePath']
*/
$GLOBALS['pmaThemePath'] = $_SESSION['PMA_Theme']->getPath();
/**
* the theme image path
* @global string $GLOBALS['pmaThemeImage']
*/
$GLOBALS['pmaThemeImage'] = $_SESSION['PMA_Theme']->getImgPath();
/**
* load layout file if exists
*/
if (@file_exists($_SESSION['PMA_Theme']->getLayoutFile())) {
include $_SESSION['PMA_Theme']->getLayoutFile();
}
}
}