/**
 * Zikula_View function to to execute a module API function
 *
 * This function calls a calls a specific module API function. It returns whatever the return
 * value of the resultant function is if it succeeds.
 * Note that in contrast to the API function ModUtil::apiFunc you need not to load the
 * module API with ModUtil::loadApi.
 *
 *
 * Available parameters:
 *   - modname:  The well-known name of a module to execute a function from (required)
 *   - type:     The type of function to execute; currently one of 'user' or 'admin' (default is 'user')
 *   - func:     The name of the module function to execute (default is 'main')
 *   - assign:   The name of a variable to which the results are assigned
 *   - all remaining parameters are passed to the module API function
 *
 * Examples
 *   {modapifunc modname='News' type='user' func='get' sid='3'}
 *
 *   {modapifunc modname='foobar' type='user' func='getfoo' id='1' assign='myfoo'}
 *   {$myfoo.title}
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the Zikula_View object.
 *
 * @see    function.modfunc.php::smarty_function_modfunc()
 *
 * @return string The results of the module API function.
 */
function smarty_function_modapifunc($params, Zikula_View $view)
{
    $assign = isset($params['assign']) ? $params['assign'] : null;
    $func = isset($params['func']) && $params['func'] ? $params['func'] : 'main';
    $modname = isset($params['modname']) ? $params['modname'] : null;
    $type = isset($params['type']) && $params['type'] ? $params['type'] : 'user';
    // avoid passing these to ModUtil::apiFunc
    unset($params['modname']);
    unset($params['type']);
    unset($params['func']);
    unset($params['assign']);
    if (!$modname) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('modapifunc', 'modname')));
        return false;
    }
    if (isset($params['modnamefunc'])) {
        $params['modname'] = $params['modnamefunc'];
        unset($params['modnamefunc']);
    }
    $result = ModUtil::apiFunc($modname, $type, $func, $params);
    if ($assign) {
        $view->assign($assign, $result);
    } else {
        return $result;
    }
}

/**
 * Zikula_View function to get module variable
 *
 * This function obtains a module-specific variable from the Zikula system.
 *
 * Note that the results should be handled by the safetext or the safehtml
 * modifier before being displayed.
 *
 *
 * Available parameters:
 *   - module:   The well-known name of a module from which to obtain the variable
 *   - name:     The name of the module variable to obtain
 *   - assign:   If set, the results are assigned to the corresponding variable instead of printed out
 *   - html:     If true then result will be treated as html content
 *   - default:  The default value to return if the config variable is not set
 *
 * Example
 *   {modgetvar module='Example' name='foobar' assign='foobarOfExample'}
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the Zikula_View object.
 *
 * @return string The module variable.
 */
function smarty_function_modgetvar($params, Zikula_View $view)
{
    $assign = isset($params['assign']) ? $params['assign'] : null;
    $default = isset($params['default']) ? $params['default'] : null;
    $module = isset($params['module']) ? $params['module'] : null;
    $html = isset($params['html']) ? (bool) $params['html'] : false;
    $name = isset($params['name']) ? $params['name'] : null;
    if (!$module) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('modgetvar', 'module')));
        return false;
    }
    if (!$name && !$assign) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('modgetvar', 'name')));
        return false;
    }
    if (!$name) {
        $result = ModUtil::getVar($module);
    } else {
        $result = ModUtil::getVar($module, $name, $default);
    }
    if ($assign) {
        $view->assign($assign, $result);
    } else {
        if ($html) {
            return DataUtil::formatForDisplayHTML($result);
        } else {
            return DataUtil::formatForDisplay($result);
        }
    }
}

/**
 * Zikula_View function to display a drop down list of module stylesheets.
 *
 * Available parameters:
 *   - modname   The module name to show the styles for
 *   - assign:   If set, the results are assigned to the corresponding variable instead of printed out
 *   - id:       ID for the control
 *   - name:     Name for the control
 *   - exclude   Comma seperated list of files to exclude (optional)
 *   - selected: Selected value
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the Zikula_View object.
 *
 * @return string The value of the last status message posted, or void if no status message exists.
 */
function smarty_function_html_select_modulestylesheets($params, Zikula_View $view)
{
    if (!isset($params['modname'])) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('html_select_modulestylesheets', 'modname')));
        return false;
    }
    if (isset($params['exclude'])) {
        $exclude = explode(',', trim($params['exclude']));
        unset($params['exclude']);
    } else {
        $exclude = array();
    }
    $params['values'] = ModUtil::apiFunc('ZikulaAdminModule', 'admin', 'getmodstyles', array('modname' => $params['modname'], 'exclude' => $exclude));
    unset($params['modname']);
    $params['output'] = $params['values'];
    $assign = isset($params['assign']) ? $params['assign'] : null;
    unset($params['assign']);
    require_once $view->_get_plugin_filepath('function', 'html_options');
    $output = smarty_function_html_options($params, $view);
    if (!empty($assign)) {
        $view->assign($assign, $output);
    } else {
        return $output;
    }
}

/**
 * Zikula_View function to create  manual link.
 *
 * This function creates a manual link from some parameters.
 *
 * Available parameters:
 *   - manual:    name of manual file, manual.html if not set
 *   - chapter:   an anchor in the manual file to jump to
 *   - newwindow: opens the manual in a new window using javascript
 *   - width:     width of the window if newwindow is set, default 600
 *   - height:    height of the window if newwindow is set, default 400
 *   - title:     name of the new window if newwindow is set, default is modulename
 *   - class:     class for use in the <a> tag
 *   - assign:    if set, the results ( array('url', 'link') are assigned to the corresponding variable instead of printed out
 *
 * Example
 * {manuallink newwindow=1 width=400 height=300 title=rtfm }
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the Zikula_View object.
 *
 * @return string|void
 */
function smarty_function_manuallink($params, Zikula_View $view)
{
    LogUtil::log(__f('Warning! Template plugin {%1$s} is deprecated.', array('manuallink')), E_USER_DEPRECATED);
    $userlang = ZLanguage::transformFS(ZLanguage::getLanguageCode());
    $stdlang = System::getVar('language_i18n');
    $title = isset($params['title']) ? $params['title'] : 'Manual';
    $manual = isset($params['manual']) ? $params['manual'] : 'manual.html';
    $chapter = isset($params['chapter']) ? '#' . $params['chapter'] : '';
    $class = isset($params['class']) ? 'class="' . $params['class'] . '"' : '';
    $width = isset($params['width']) ? $params['width'] : 600;
    $height = isset($params['height']) ? $params['height'] : 400;
    $modname = ModUtil::getName();
    $possibleplaces = array("modules/{$modname}/docs/{$userlang}/manual/{$manual}", "modules/{$modname}/docs/{$stdlang}/manual/{$manual}", "modules/{$modname}/docs/en/manual/{$manual}", "modules/{$modname}/docs/{$userlang}/{$manual}", "modules/{$modname}/docs/{$stdlang}/{$manual}", "modules/{$modname}/docs/lang/en/{$manual}");
    foreach ($possibleplaces as $possibleplace) {
        if (file_exists($possibleplace)) {
            $url = $possibleplace . $chapter;
            break;
        }
    }
    if (isset($params['newwindow'])) {
        $link = "<a {$class} href='#' onclick=\"window.open( '" . DataUtil::formatForDisplay($url) . "' , '" . DataUtil::formatForDisplay($modname) . "', 'status=yes,scrollbars=yes,resizable=yes,width={$width},height={$height}'); picwin.focus();\">" . DataUtil::formatForDisplayHTML($title) . "</a>";
    } else {
        $link = "<a {$class} href=\"" . DataUtil::formatForDisplay($url) . "\">" . DataUtil::formatForDisplayHTML($title) . "</a>";
    }
    if (isset($params['assign'])) {
        $ret = array('url' => $url, 'link' => $link);
        $view->assign($params['assign'], $ret);
        return;
    } else {
        return $link;
    }
}

/**
 * Zikula_View switch block.
 *
 * Available attributes:
 *  - expr (string|numeric) The variable to be tested against each of the
 *    {@link smarty_block_case() case} expressions.
 *
 * Example:
 * <pre>
 * {switch expr=$var}
 *   {case expr='1'}
 *     do some stuff for case $var == '1'
 *   {/case}
 *   {case expr='2'}
 *     do some stuff for case $var == '2'
 *   {/case}
 *   {case}
 *     default stuff
 *   {/case}
 * {/switch}
 * </pre>.
 *
 * @param array       $params  All attributes passed to this function from the template.
 * @param string      $content The content between the block tags.
 * @param Zikula_View $view    Reference to the {@link Zikula_View} object.
 * @param mixed       &$pages  Pages?.
 *
 * @see    smarty_block_case.
 *
 * @todo   Document the &$pages parameter, or correct it (possibly &$repeat?).
 *
 * @return string The content of the matching case.
 */
function smarty_block_switch($params, $content, Zikula_View $view, &$pages)
{
    if (is_null($content) && !array_key_exists('expr', $params)) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('smarty_block_switch', 'expr')));
    }
    return $content;
}

/**
 * Zikula_View function to to execute a PHP callable.
 *
 * This plugin can call any PHP callable using x_class + x_method OR x_function
 * with a list of argument/value pairs.
 *
 *
 * Available parameters:
 *   - x_class:    The well-known name of a module to execute a function from (required)
 *   - x_method:   The type of function to execute; currently one of 'user' or 'admin' (default is 'user')
 *   - x_function: The name of the module function to execute (default is 'main')
 *   - x_assign:     If set, the results are assigned to the corresponding variable instead of printed out
 *   - all remaining parameters are passed to the callable.
 *
 * Based on call_user_func_array()
 *
 * Example
 * {callfunc x_class='Foo' x_method='Bar' name='Jane'}
 * {callfunc x_method='Something' age=21 name='Jane'}
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the Zikula_View object.
 *
 * @return mixed The results of the callable.
 */
function smarty_function_callfunc($params, Zikula_View $view)
{
    $assign = (isset($params['x_assign']) && !empty($params['x_assign'])) ? $params['x_assign'] : '';
    
    if (array_key_exists('x_class', $params)) {
        $class = $params['x_class'];
        $method = $params['x_method'];
    } else if (array_key_exists('x_function', $params)) {
        $function = $params['x_function'];
    } else {
        $view->trigger_error(__f('Error! in %1$s: the "class" and "method" parameter must be specified together or just "function" by itself.', array('calluserfunc', 'modname')));
    }

    $callable = (isset($class)) ? array($class, $method) : $function;

    unset($params['x_class']);
    unset($params['x_method']);
    unset($params['x_function']);
    unset($params['x_assign']);

    $result = call_user_func_array($callable, $params);

    if ($assign) {
        $view->assign($assign, $result);
    } else {
        return $result;
    }
}

/**
 * Smarty function to return first image src from given HTML content.
 *
 * Examples
 *  {getImage htmlcontent=$item.body}
 *  {getImage htmlcontent=$item.body putbaseurl=true}
 *  {getImage htmlcontent=$item.body putbaseurl=true assign='imagesrc'}
 *
 * @return string
 */
function smarty_function_getImage($params, Zikula_View $view)
{
    $result = $params['htmlcontent'];
    if (isset($params['htmlcontent']) && $params['htmlcontent']) {
        if (strpos($params['htmlcontent'], '<img ') === false) {
            // image is not found in content
        } else {
            // get image src
            $posstart = strpos($params['htmlcontent'], ' src="', $posstart) + 6;
            $posend = strpos($params['htmlcontent'], '"', $posstart);
            $result = substr($params['htmlcontent'], $posstart, $posend - $posstart);
            if (isset($params['putbaseurl']) && $params['putbaseurl']) {
                // put base url, if not
                if (substr($result, 0, 7) != 'http://' || substr($result, 0, 8) != 'https://') {
                    $result = System::getBaseUrl() . ltrim($result, DIRECTORY_SEPARATOR);
                }
            }
        }
    }
    if (isset($params['assign'])) {
        $view->assign($params['assign'], $result);
    } else {
        return $result;
    }
}

/**
 * Zikula_View function to display a drop down list of languages
 *
 * Available parameters:
 *   - assign:   If set, the results are assigned to the corresponding variable instead of printed out
 *   - name:     Name for the control
 *   - id:       ID for the control
 *   - selected: Selected value
 *   - installed: if set only show languages existing in languages folder
 *   - all:      show dummy entry '_ALL' on top of the list with empty value
 *
 * Example
 *   {html_select_languages name=language selected=en}
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the Zikula_View object.
 *
 * @deprecated smarty_function_html_select_locales()
 * @return string The value of the last status message posted, or void if no status message exists.
 */
function smarty_function_html_select_languages($params, Zikula_View $view)
{
    if (!isset($params['name']) || empty($params['name'])) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('html_select_languages', 'name')));
        return false;
    }
    require_once $view->_get_plugin_filepath('function', 'html_options');
    $params['output'] = array();
    $params['values'] = array();
    if (isset($params['all']) && $params['all']) {
        $params['values'][] = '';
        $params['output'][] = DataUtil::formatForDisplay(__('All'));
        unset($params['all']);
    }
    if (isset($params['installed']) && $params['installed']) {
        $languagelist = ZLanguage::getInstalledLanguageNames();
        unset($params['installed']);
    } else {
        $languagelist = ZLanguage::languageMap();
    }
    $params['output'] = array_merge($params['output'], DataUtil::formatForDisplay(array_values($languagelist)));
    $params['values'] = array_merge($params['values'], DataUtil::formatForDisplay(array_keys($languagelist)));
    $assign = isset($params['assign']) ? $params['assign'] : null;
    unset($params['assign']);
    $html_result = smarty_function_html_options($params, $view);
    if (!empty($assign)) {
        $view->assign($assign, $html_result);
    } else {
        return $html_result;
    }
}

/**
 * Check if an array element (subscript) is set.
 *
 * Available attributes:
 *  - array         (array)     an array template variable
 *  - field         (string)    the value of a key in the array specified above
 *  - returnValue   (bool|int)  if set, then the contents of the array element
 *                              $array[$field] is returned if it is set, otherwise false is returned
 *  - assign        (string)    (optional) if provided, a template variable with
 *                              the specified name is set with the return value,
 *                              instead of returning the value to the template
 *
 * Examples:
 *
 *  Return true to the template if the template variable $myarray['arraykey']
 *  is set, otherwise return false to the template:
 *
 *  <samp>{array_field_isset array=$myarray field='arraykey'}</samp>
 *
 *  Return the value of the template variable $myarray['arraykey'] to the
 *  template if it is set, otherwise return false to the template:
 *
 *  <samp>{array_field_isset array=$myarray field='arraykey' returnValue=1}</samp>
 *
 *  Assign true to the template variable $myValue if the template variable
 *  $myarray['arraykey'] is set, otherwise set $myValue to false:
 *
 *  <samp>{array_field_isset array=$myarray field='arraykey' assign='myValue'}</samp>
 *
 *  Assign the value of the template variable $myarray['arraykey'] to the
 *  template variable $myValue if it is set, otherwise assign false to $myValue:
 *
 *  <samp>{array_field_isset array=$myarray field='arraykey' returnValue=1 assign='myValue'}</samp>
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the {@link Zikula_View} object.
 *
 * @return boolean|mixed if returnValue is not set, then returns true if the array
 *                       element is set, otherwise false; if returnValue is set,
 *                       then returns the value of the array element if it is set,
 *                       otherwise false.
 */
function smarty_function_array_field_isset($params, Zikula_View $view)
{
    LogUtil::log(__f('Warning! Template plugin {%1$s} is deprecated, please use {%2$s} instead.', array('array_field_isset returnValue=1 ...', 'array_field ...')), E_USER_DEPRECATED);

    $array       = isset($params['array'])       ? $params['array']        : null;
    $field       = isset($params['field'])       ? $params['field']        : null;
    $returnValue = isset($params['returnValue']) ? $params['returnValue']  : null;
    $assign      = isset($params['assign'])      ? $params['assign']       : null;

    if ($array === null) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('array_field_isset', 'array')));
        return false;
    }

    if ($field === null) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('array_field_isset', 'field')));
        return false;
    }

    $result = isset($array[$field]);
    if ($result && $returnValue) {
        $result = $array[$field];
    }

    if ($assign) {
        $view->assign($assign, $result);
    } else {
        return $result;
    }
}

/**
 * Obtain and display a configuration variable from the Zikula system.
 *
 * Available attributes:
 *  - name      (string)    The name of the configuration variable to obtain
 *  - html      (bool)      If set, the output is prepared for display by
 *                          DataUtil::formatForDisplayHTML instead of
 *                          DataUtil::formatForDisplay
 *  - assign    (string)    the name of a template variable to assign the
 *                          output to, instead of returning it to the template. (optional)
 *
 * <i>Note that if the the result is assigned to a template variable, it is not
 * prepared for display by either DataUtil::formatForDisplayHTML or
 * DataUtil::formatForDisplay. If it is to be displayed, the safetext
 * modifier should be used.</i>
 *
 * Examples:
 *
 * <samp><p>Welcome to {configgetvar name='sitename'}!</p></samp>
 *
 * <samp>{configgetvar name='sitename' assign='thename'}</samp><br>
 * <samp><p>Welcome to {$thename|safetext}!</p></samp>
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the {@link Zikula_View} object.
 *
 * @return mixed The value of the configuration variable.
 */
function smarty_function_configgetvar($params, $view)
{
    LogUtil::log(__f('Warning! Template plugin {%1$s} is deprecated.', array('configgetvar')), E_USER_DEPRECATED);

    $name      = isset($params['name'])    ? $params['name']    : null;
    $default   = isset($params['default']) ? $params['default'] : null;
    $html      = isset($params['html'])    ? $params['html']    : null;
    $assign    = isset($params['assign'])  ? $params['assign']  : null;

    if (!$name) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('configgetvar', 'name')));
        return false;
    }

    $result = System::getVar($name, $default);

    if ($assign) {
        $view->assign($assign, $result);
    } else {
        if (is_bool($html) && $html) {
            return DataUtil::formatForDisplayHTML($result);
        } else {
            return DataUtil::formatForDisplay($result);
        }
    }
}

/**
 * Zikula_View function to display a preview image from a theme
 *
 * Available parameters:
 *  - name       name of the theme to display the preview image for
 *  - name       if set, the id assigned to the image
 *  - size         if set, the size of the image to use from small, medium, large (optional: default 'medium')
 *  - assign     if set, the title will be assigned to this variable
 *
 * Example
 * {previewimage name=andreas08 size=large}
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the Zikula_View object.
 *
 * @see    function.title.php::smarty_function_previewimage()
 *
 * @return string The markup to display the theme image.
 */
function smarty_function_previewimage($params, Zikula_View $view)
{
    if (!isset($params['name'])) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('previewimage', 'name')));
        return false;
    }
    if (!isset($params['size']) || !in_array($params['size'], array('large', 'medium', 'small'))) {
        $params['size'] = 'medium';
    }
    $idstring = '';
    if (isset($params['id'])) {
        $idstring = " id=\"{$params['id']}\"";
    }
    $themeinfo = ThemeUtil::getInfo(ThemeUtil::getIDFromName($params['name']));
    $theme = ThemeUtil::getTheme($themeinfo['name']);
    $themePath = null === $theme ? "themes/{$themeinfo['directory']}/images" : $theme->getRelativePath() . '/Resources/public/images';
    if (file_exists("{$themePath}/preview_{$params['size']}.png")) {
        $filesrc = "{$themePath}/preview_{$params['size']}.png";
    } else {
        $filesrc = "system/ThemeModule/Resources/public/images/preview_{$params['size']}.png";
    }
    $markup = "<img{$idstring} src=\"{$filesrc}\" alt=\"\" />";
    if (isset($params['assign'])) {
        $view->assign($params['assign'], $markup);
    } else {
        return $markup;
    }
}

/**
 * Available params:
 *  - image         (string)        Path to source image (required)
 *  - width         (int)           Thumbnail width in pixels (optional, default value based on 'default' preset)
 *  - height        (int)           Thumbnail width in pixels (optional, default value based on 'default' preset)
 *  - mode          (string)        Thumbnail mode; 'inset' or 'outset' (optional, default 'inset')
 *  - extension     (string)        File extension for thumbnails: jpg, png, gif; null for original file type
 *                                  (optional, default value based on 'default' preset)
 *  - objectid      (string)        Unique signature for object, which owns this thumbnail (optional)
 *  - preset        (string|object) Name of preset defined in Imagine or custom preset passed as instance of
 *                                  SystemPlugin_Imagine_Preset; if given inline options ('width', 'heigth', 'mode'
 *                                  and 'extension') are ignored (optional)
 *  - manager       (object)        Instance of SystemPlugin_Imagine_Manager; if given inline options ('width',
 *                                  'heigth', 'mode' and 'extension') are ignored (optional)
 *  - fqurl         (boolean)       If set the thumb path is absolute, if not relative
 *  - tag           (boolean)       If set to true - full <img> tag will be generated. Tag attributes should be
 *                                  passed with "img_" prefix (for example: "img_class"). Getttext prefix may be
 *                                  used for translations (for example: "__img_alt")
 *
 * Examples
 *
 * Basic usage with inline options:
 *  {thumb image='path/to/image.png' width=100 height=100 mode='inset' extension='jpg'}
 *
 * Using preset define in Imagine plugin
 *  {thumb image='path/to/image.png' objectid='123' preset='my_preset'}
 *
 * Using custom preset, defined in module and passed to template
 *  {thumb image='path/to/image.png' objectid='123' preset=$preset}
 *
 * Using custom SystemPlugin_Imagine_Manager instance, defined in module and passed to template
 *  {thumb image='path/to/image.png' objectid='123' manager=$manager}
 *
 * Generating full img tag
 *  {thumb image='path/to/image.png' objectid='123' preset=$preset tag=true __img_alt='Alt text, gettext prefix may be used' img_class='image-class'}
 * This will generate:
 *  <img src="thumb/path" widht="100" height="100" alt="Alt text, gettext prefix may be used" class="image-class" />
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the {@link Zikula_View} object.
 *
 * @return string thumb path
 */
function smarty_function_thumb($params, Zikula_View $view)
{
    if (!isset($params['image']) || empty($params['image'])) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('smarty_function_thumb', 'image')));
        return false;
    }

    $image = $params['image'];
    $objectId = isset($params['objectid']) ? $params['objectid'] : null;

    if (isset($params['manager']) && $params['manager'] instanceof SystemPlugin_Imagine_Manager) {
        $manager = $params['manager'];
    } else {
        $manager = $view->getServiceManager()->getService('systemplugin.imagine.manager');
    }

    if (isset($params['preset']) && $params['preset'] instanceof SystemPlugin_Imagine_Preset) {
        $preset = $params['preset'];
    } elseif (isset($params['preset']) && $manager->getPlugin()->hasPreset($params['preset'])) {
        $preset = $manager->getPlugin()->getPreset($params['preset']);
    } else {
        $preset = array();
        $preset['width'] = isset($params['width']) ? $params['width'] : null;
        $preset['height'] = isset($params['height']) ? $params['height'] : null;
        $preset['mode'] = isset($params['mode']) ? $params['mode'] : null;
        $preset['extension'] = isset($params['extension']) ? $params['extension'] : null;
        $preset = array_filter($preset);
    }

    $manager->setPreset($preset);
    $thumb = $manager->getThumb($image, $objectId);

    $basePath = (isset($params['fqurl']) && $params['fqurl']) ? System::getBaseUrl() : System::getBaseUri();
    $result = "{$basePath}/{$thumb}";

    if (isset($params['tag']) && $params['tag']) {
        $thumbSize = @getimagesize($thumb);
        $attributes = array();
        $attributes[] = "src=\"{$basePath}/{$thumb}\"";
        $attributes[] = $thumbSize[3]; // width and height
        // get tag params
        foreach ($params as $key => $value) {
            if (strpos($key, 'img_') === 0) {
                $key = str_replace('img_', '', $key);
                $attributes[$key] = "{$key}=\"{$value}\"";
            }
        }
        if (!isset($attributes['alt'])) {
            $attributes[] = 'alt=""';
        }
        $attributes = implode(' ', $attributes);
        $result = "<img {$attributes} />";
    }

    if (isset($params['assign'])) {
        $view->assign($params['assign'], $result);
    } else {
//.........这里部分代码省略.........

/**
 * Zikula_View function notify display hooks.
 *
 * This function notify display hooks.
 *
 * Available parameters:
 * - 'eventname' The name of the hook event [required].
 * - 'id'        The ID if the subject.
 * - 'urlobject' Zikula_ModUrl instance or null.
 * - 'assign'    If set, the results array is assigned to the named variable instead display [optional].
 * - all remaining parameters are passed to the hook via the args param in the event.
 *
 * Example:
 *  {notifydisplayhooks eventname='news.ui_hooks.item.display_view' id=$id urlobject=$urlObject}
 *  {notifydisplayhooks eventname='news.ui_hooks.item.display_view' id=$id urlobject=$urlObject assign='displayhooks'}
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the Zikula_View object.
 *
 * @see    smarty_function_notifydisplayhooks()
 *
 * @return string|void if the results are assigned to variable in assigned.
 */
function smarty_function_notifydisplayhooks($params, Zikula_View $view)
{
    if (!isset($params['eventname'])) {
        return trigger_error(__f('Error! "%1$s" must be set in %2$s', array('eventname', 'notifydisplayhooks')));
    }
    $eventname = $params['eventname'];
    $id = isset($params['id']) ? $params['id'] : null;
    $urlObject = isset($params['urlobject']) ? $params['urlobject'] : null;
    if ($urlObject && !$urlObject instanceof \Zikula\Core\UrlInterface) {
        return trigger_error(__f('Error! "%1$s" must be an instance of %2$s', array('urlobject', '\\Zikula\\Core\\UrlInterface')));
    }
    $assign = isset($params['assign']) ? $params['assign'] : false;
    // create event and notify
    $hook = new Zikula_DisplayHook($eventname, $id, $urlObject);
    // @todo Zikula_DisplayHook maintains BC. IN 1.5.0 change to \Zikula\Core\Hook\DisplayHook($id, $urlObject);
    $view->getContainer()->get('hook_dispatcher')->dispatch($eventname, $hook);
    $responses = $hook->getResponses();
    // assign results, this plugin does not return any display
    if ($assign) {
        $view->assign($assign, $responses);
        return null;
    }
    $output = '';
    foreach ($responses as $result) {
        $output .= "<div class=\"z-displayhook\">{$result}</div>\n";
    }
    return $output;
}

/**
 * Zikula_View modifier to parse gettext string.
 *
 * Example
 *
 *   {$var|gt:$zikula_view}
 *
 * @param string      $string The contents to transform.
 * @param Zikula_View $view   This Zikula_View object (available as $renderObject in templates).
 *
 * @return string The modified output.
 */
function smarty_modifier_gt($string, $view)
{
    if (!$view instanceof Zikula_View) {
        return __('Error! With modifier_gt, you must use the following form for the gettext modifier (\'gt\'): $var|gt:$zikula_view');
    }
    return __($string, $view->getDomain());
}

/**
 * Zikula_View function to load Zikula_tree.
 *
 * Example:
 * {tree $menuArray=$your_content imagesDir='yout/path/to/images/'}
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the Zikula_View object.
 *
 * @return string The results of the module function
 */
function smarty_function_tree($params, Zikula_View $view)
{
    $menuString = isset($params['menustring']) ? $params['menustring'] : null;
    $menuArray = isset($params['menuarray']) ? $params['menuarray'] : null;
    $treeArray = isset($params['treearray']) ? $params['treearray'] : null;
    $config = isset($params['config']) ? $params['config'] : array();
    if (!isset($menuString) && !isset($menuArray) && !isset($treeArray)) {
        $view->trigger_error(__f('Error! in %1$s: %2$s, %3$s or %4$s parameter must be specified.', array('smarty_function_tree', 'menustring', 'menuarray', 'treearray')));
        return false;
    }
    unset($params['menustring']);
    unset($params['menuarray']);
    unset($params['treearray']);
    unset($params['config']);
    $config = array_merge($config, (array) $params);
    $tree = new Zikula_Tree($config);
    if (isset($treeArray)) {
        $tree->setTreeData($treeArray);
    } elseif (isset($menuArray)) {
        $tree->loadArrayData($menuArray);
    } else {
        $tree->loadStringData($menuString);
    }
    if (isset($params['assign'])) {
        $view->assign($params['assign'], $tree->getHTML());
    } else {
        return $tree->getHTML();
    }
}

/**
 * Obtain the value of one block variable or all block variables for a specified block.
 *
 * Note: If the name of the block variable is not set, then the assign parameter
 * must be set since an array of block variables will be returned.
 *
 * Available attributes:
 *   - bid      (numeric)   The block id
 *   - name     (string)    The name of the block variable to get, otherwise the
 *                          entire block array is assigned is returned.
 *                          (required, if the assign attribute is not specified,
 *                          otherwise, optional)
 *   - assign   (string)    The name of the template variable to which the value
 *                          is assigned, instead of being output to the template.
 *                          (optional if the name attribute is set, otherwise
 *                          required)
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the {@link Zikula_View} object.
 *
 * @return mixed the value of the block variable specified by the name attribute,
 *               or an array containing the full block information.
 */
function smarty_function_blockgetinfo($params, Zikula_View $view)
{
    $bid = isset($params['bid']) ? (int) $params['bid'] : 0;
    $name = isset($params['name']) ? $params['name'] : null;
    $assign = isset($params['assign']) ? $params['assign'] : null;
    if (!$bid) {
        $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified.', array('blockgetinfo', 'bid')));
    }
    // get the block info array
    $blockinfo = BlockUtil::getBlockInfo($bid);
    if ($name) {
        if ($assign) {
            $view->assign($assign, $blockinfo[$name]);
        } else {
            return $blockinfo[$name];
        }
    } else {
        // handle the full blockinfo array
        if ($assign) {
            $view->assign($assign, $blockinfo);
        } else {
            $view->trigger_error(__f('Error! in %1$s: the %2$s parameter must be specified to get the full block information.', array('pnblockgetinfo', 'assign')));
        }
    }
    return;
}

/**
 * Zikula_View function to display a drop down list of themes.
 *
 * Available parameters:
 *   - name:     Name for the control (optional) if not present then only the option tags are output
 *   - id:       ID for the control
 *   - selected: Selected value
 *   - filter:   Filter themes use (possible values: ThemeUtil::FILTER_ALL (default) ThemeUtil::FILTER_USER, ThemeUtil::FILTER_SYSTEM, ThemeUtil::FILTER_ADMIN
 *   - state:    Filter themes by state (possible values: ThemeUtil::STATE_ALL (default), ThemeUtil::STATE_ACTIVE, ThemeUtil::STATE_INACTIVE
 *   - type:     Filter themes by type (possible values: ThemeUtil::TYPE_ALL (default), ThemeUtil::TYPE_XANTHIA3
 *   - assign:   If set, the results are assigned to the corresponding variable instead of printed out
 *
 * Examples
 *
 *     {html_select_themes name=mytheme selected=mythemechoice}
 *
 *     <select name="mytheme">
 *         <option value="">{ml name=_DEFAULT}</option>
 *         {html_select_themes selected=$mythemechoice}
 *     </select>
 *
 * @param array       $params All attributes passed to this function from the template.
 * @param Zikula_View $view   Reference to the Zikula_View object.
 *
 * @return string The value of the last status message posted, or void if no status message exists.
 */
function smarty_function_html_select_themes($params, Zikula_View $view)
{
    if (!isset($params['filter']) || !defined($params['filter'])) {
        $filter = ThemeUtil::FILTER_ALL;
    } else {
        $filter = constant($params['filter']);
    }
    if (!isset($params['state']) || !defined($params['state'])) {
        $state = ThemeUtil::STATE_ALL;
    } else {
        $state = constant($params['state']);
    }
    if (!isset($params['type']) || !defined($params['type'])) {
        $type = ThemeUtil::TYPE_ALL;
    } else {
        $type = constant($params['type']);
    }
    $themelist = array();
    $themes = ThemeUtil::getAllThemes($filter, $state, $type);
    if (!empty($themes)) {
        foreach ($themes as $theme) {
            $themelist[$theme['name']] = $theme['displayname'];
        }
    }
    natcasesort($themelist);
    require_once $view->_get_plugin_filepath('function', 'html_options');
    $output = smarty_function_html_options(array('options' => $themelist, 'selected' => isset($params['selected']) ? $params['selected'] : null, 'name' => isset($params['name']) ? $params['name'] : null, 'id' => isset($params['id']) ? $params['id'] : null), $view);
    if (isset($params['assign'])) {
        $view->assign($params['assign'], $output);
    } else {
        return $output;
    }
}

/**
 * Zikula_View function to use the _dgettext() function
 *
 * This function takes a identifier and returns the corresponding language constant.
 *
 * Available parameters:
 *   - text:     (required) string to translate
 *   - tagN:     (optional) replace for sprintf() e.g. %s or %1$s
 *   - domain:   (optional) textdomain to be used (not required, the system will fill this out automatically
 *   - comment:  (optional) comment to the translator (this is not processed by this code)
 *   - assign:   If set, the results are assigned to the corresponding variable instead of printed out
 *
 * Examples
 * {gettext}Hello world{/gettext}
 * {gettext tag1=$name}Hello %s{/gettext}
 * {gettext  tag1=$city tag2=$c