PHP Doku_Event::preventDefault方法代码示例

 /**
  * Handles input from the newform and redirects to the edit mode
  *
  * @author Andreas Gohr <gohr@cosmocode.de>
  * @author Gina Haeussge <osd@foosel.net>
  *
  * @param Doku_Event $event  event object by reference
  * @param array      $param  empty array as passed to register_hook()
  * @return bool
  */
 function handle_act_preprocess(Doku_Event $event, $param)
 {
     global $TEXT;
     global $ID;
     if ($event->data != 'btngnew') {
         return true;
     }
     /** @var helper_plugin_blogtng_tools $tools */
     $tools = plugin_load('helper', 'blogtng_tools');
     if (!$tools->getParam('new/title')) {
         msg($this->getLang('err_notitle'), -1);
         $event->data = 'show';
         return true;
     }
     $event->preventDefault();
     $new = $tools->mkpostid($tools->getParam('new/format'), $tools->getParam('new/title'));
     if ($ID != $new) {
         $urlparams = array('do' => 'btngnew', 'btng[post][blog]' => $tools->getParam('post/blog'), 'btng[post][tags]' => $tools->getParam('post/tags'), 'btng[post][commentstatus]' => $tools->getParam('post/commentstatus'), 'btng[new][format]' => $tools->getParam('new/format'), 'btng[new][title]' => $tools->getParam('new/title'));
         send_redirect(wl($new, $urlparams, true, '&'));
         return false;
         //never reached
     } else {
         $TEXT = $this->_prepare_template($new, $tools->getParam('new/title'));
         $event->data = 'preview';
         return false;
     }
 }

 /**
  * @param Doku_Event$event
  * @param $param
  */
 public function ajax(Doku_Event $event, $param)
 {
     if ($event->data !== 'bureaucracy_user_field') {
         return;
     }
     $event->stopPropagation();
     $event->preventDefault();
     $search = $_REQUEST['search'];
     /** @var DokuWiki_Auth_Plugin $auth */
     global $auth;
     $users = array();
     foreach ($auth->retrieveUsers() as $username => $data) {
         if ($search === '' || stripos($username, $search) === 0 || stripos($data['name'], $search) !== false) {
             // Full name
             $users[$username] = $data['name'];
         }
         if (count($users) === 10) {
             break;
         }
     }
     if (count($users) === 1 && key($users) === $search) {
         $users = array();
     }
     require_once DOKU_INC . 'inc/JSON.php';
     $json = new JSON();
     echo $json->encode($users);
 }

 /**
  * @param Doku_Event $event  event object by reference
  * @param array      $param  empty array as passed to register_hook()
  */
 function handle_ajax_call(Doku_Event $event, $param)
 {
     /** @var DokuWiki_Auth_Plugin $auth */
     global $auth;
     if ($event->data != 'blogtng__comment_preview') {
         return;
     }
     $event->preventDefault();
     $event->stopPropagation();
     require_once DOKU_PLUGIN . 'blogtng/helper/comments.php';
     $comment = new blogtng_comment();
     $comment->data['text'] = $_REQUEST['text'];
     $comment->data['name'] = $_REQUEST['name'];
     $comment->data['mail'] = $_REQUEST['mail'];
     $comment->data['web'] = isset($_REQUEST['web']) ? $_REQUEST['web'] : '';
     $comment->data['cid'] = 'preview';
     $comment->data['created'] = time();
     $comment->data['status'] = 'visible';
     if (!$comment->data['name'] && $_SERVER['REMOTE_USER']) {
         if ($auth and $info = $auth->getUserData($_SERVER['REMOTE_USER'])) {
             $comment->data['name'] = $info['name'];
             $comment->data['mail'] = $info['mail'];
         }
     }
     $comment->output($_REQUEST['tplname']);
 }

 /**
  * [Custom event handler which performs action]
  *
  * @param Doku_Event $event event object by reference
  * @param mixed $param [the parameters passed as fifth argument to register_hook() when this
  *                           handler was registered]
  * @return void
  */
 public function handle_auth_user_change(Doku_Event &$event, $param)
 {
     if ($event->data['type'] !== 'create') {
         return;
     }
     $domains = array_map(function ($domain) {
         return trim($domain);
     }, explode(';', $this->getConf('_domainWhiteList')));
     $email = $event->data['params'][3];
     $checks = array(in_array(trim(substr(strrchr($email, "@"), 1)), $domains), (bool) preg_match($this->getConf('_emailRegex', '/@/'), $email));
     if ($this->getConf('checksAnd', true)) {
         $status = array_reduce($checks, function ($a, $b) {
             return $a && $b;
         }, true);
     } else {
         $status = array_reduce($checks, function ($a, $b) {
             return $a || $b;
         }, false);
     }
     if (!$status) {
         $event->preventDefault();
         $event->stopPropagation();
         $event->result = false;
         msg($this->getConf('_domainlistErrorMEssage'), -1);
     }
 }

 /**
  * Gets the thumbnail
  *
  * @param Doku_Event $event  event object by reference
  * @param mixed      $param  [the parameters passed as fifth argument to register_hook() when this
  *                           handler was registered]
  * @return void
  */
 public function handle_do_action(Doku_Event &$event, $param)
 {
     if ($event->data !== 'obsaudioupload_frame_thumbnail') {
         return;
     }
     //no other ajax call handlers needed
     $event->stopPropagation();
     $event->preventDefault();
     // get the url of the image to make into a thumbnail
     $url = $GLOBALS['INPUT']->str('img');
     $imageInfo = getimagesize($url);
     // 0=width, 1=height, 2=format
     if ($imageInfo[2] == IMG_PNG) {
         $img = imagecreatefrompng($url);
     } else {
         $img = imagecreatefromjpeg($url);
     }
     $newHeight = 50;
     $newWidth = (int) ($imageInfo[0] * $newHeight / $imageInfo[1]);
     $newImg = imagecreatetruecolor($newWidth, $newHeight);
     imagecopyresized($newImg, $img, 0, 0, 0, 0, $newWidth, $newHeight, $imageInfo[0], $imageInfo[1]);
     // output
     header('Content-Type: application/jpeg');
     imagejpeg($newImg, null, 60);
     exit;
 }

 public function onAjaxCallUnknown(\Doku_Event $event, $action)
 {
     if ($event->data != 'yk') {
         return;
     }
     // skip if not our plugin
     $do = $this->G['INPUT']->post->str('action', '');
     if ($action !== $do) {
         return;
         // not match. skip this, continue with another
     }
     $event->preventDefault();
     // what does it do?
     $event->stopPropagation();
     //our hooker found, skip others
     $pageId = $this->G['INPUT']->post->str('id', '');
     $pageNewId = $this->G['INPUT']->post->str('new_page_id', null);
     $json = new \stdClass();
     $json->error = false;
     try {
         $this->logger(strtoupper($do), 'PAGE ' . $pageId);
         $json->result = $this->doAction($pageId, $pageNewId);
         $this->logger('SUCCESS');
     } catch (\Exception $e) {
         $json->error = date('H:i:s') . ' ' . $e->getMessage();
         $this->logger('ERROR', $e->getMessage());
     }
     //header('Content-Type: application/json');
     echo json_encode($json);
 }

 /**
  * Step up
  *
  * @param Doku_Event $event
  */
 public function handle_ajax(Doku_Event $event)
 {
     if ($event->data != 'plugin_move_progress') {
         return;
     }
     $event->preventDefault();
     $event->stopPropagation();
     global $INPUT;
     global $USERINFO;
     if (!auth_ismanager($_SERVER['REMOTE_USER'], $USERINFO['grps'])) {
         http_status(403);
         exit;
     }
     $return = array('error' => '', 'complete' => false, 'progress' => 0);
     /** @var helper_plugin_move_plan $plan */
     $plan = plugin_load('helper', 'move_plan');
     if (!$plan->isCommited()) {
         // There is no plan. Something went wrong
         $return['complete'] = true;
     } else {
         $todo = $plan->nextStep($INPUT->bool('skip'));
         $return['progress'] = $plan->getProgress();
         $return['error'] = $plan->getLastError();
         if ($todo === 0) {
             $return['complete'] = true;
         }
     }
     $json = new JSON();
     header('Content-Type: application/json');
     echo $json->encode($return);
 }

 /**
  * Rename a single page
  */
 public function handle_ajax(Doku_Event $event)
 {
     if ($event->data != 'plugin_move_rename') {
         return;
     }
     $event->preventDefault();
     $event->stopPropagation();
     global $MSG;
     global $INPUT;
     $src = cleanID($INPUT->str('id'));
     $dst = cleanID($INPUT->str('newid'));
     /** @var helper_plugin_move_op $MoveOperator */
     $MoveOperator = plugin_load('helper', 'move_op');
     $JSON = new JSON();
     header('Content-Type: application/json');
     if ($this->renameOkay($src) && $MoveOperator->movePage($src, $dst)) {
         // all went well, redirect
         echo $JSON->encode(array('redirect_url' => wl($dst, '', true, '&')));
     } else {
         if (isset($MSG[0])) {
             $error = $MSG[0];
             // first error
         } else {
             $error = $this->getLang('cantrename');
         }
         echo $JSON->encode(array('error' => $error));
     }
 }

 /**
  * Create the detail info for a single plugin
  *
  * @param Doku_Event $event
  * @param            $param
  */
 public function info(Doku_Event &$event, $param)
 {
     global $USERINFO;
     global $INPUT;
     if ($event->data != 'plugin_extension') {
         return;
     }
     $event->preventDefault();
     $event->stopPropagation();
     if (empty($_SERVER['REMOTE_USER']) || !auth_isadmin($_SERVER['REMOTE_USER'], $USERINFO['grps'])) {
         http_status(403);
         echo 'Forbidden';
         exit;
     }
     header('Content-Type: text/html; charset=utf-8');
     $ext = $INPUT->str('ext');
     if (!$ext) {
         echo 'no extension given';
         return;
     }
     /** @var helper_plugin_extension_extension $extension */
     $extension = plugin_load('helper', 'extension_extension');
     $extension->setExtension($ext);
     /** @var helper_plugin_extension_list $list */
     $list = plugin_load('helper', 'extension_list');
     echo $list->make_info($extension);
 }

 /**
  * @param Doku_Event $event  event object by reference
  * @param mixed      $param  [the parameters passed as fifth argument to register_hook() when this
  *                           handler was registered]
  * @return void
  */
 public function handle_ajax_call_unknown(Doku_Event &$event, $param)
 {
     if ($event->data !== 'tagapi_list') {
         return;
     }
     $event->stopPropagation();
     $event->preventDefault();
     if ($this->tagplugin = $this->loadHelper('tag')) {
         $tags = $this->tagplugin->tagOccurrences(array(), NULL, true);
         $a = print_r($tags, true);
         // file_put_contents(DOKU_INC . 'tags.txt', $a);
     } else {
         $tags = array();
     }
     // sort tags by name ($tags is in the form $tag => $count)
     ksort($tags);
     echo '{"tags":[';
     $firstelement = true;
     foreach (array_keys($tags) as $tag) {
         if ($firstelement) {
             $firstelement = false;
         } else {
             echo ',';
         }
         echo '{"name":"' . $this->tagToName($tag) . '","id":"' . $tag . '"}';
     }
     echo ']}';
 }

 /**
  * Load a whole schema as fields
  *
  * @param Doku_Event $event event object by reference
  * @param mixed $param [the parameters passed as fifth argument to register_hook() when this
  *                           handler was registered]
  * @return bool
  */
 public function handle_schema(Doku_Event $event, $param)
 {
     $args = $event->data['args'];
     if ($args[0] != 'struct_schema') {
         return false;
     }
     $event->preventDefault();
     $event->stopPropagation();
     /** @var helper_plugin_bureaucracy_field $helper */
     $helper = plugin_load('helper', 'bureaucracy_field');
     $helper->initialize($args);
     $schema = new Schema($helper->opt['label']);
     if (!$schema->getId()) {
         msg('This schema does not exist', -1);
         return false;
     }
     foreach ($schema->getColumns(false) as $column) {
         /** @var helper_plugin_struct_field $field */
         $field = plugin_load('helper', 'struct_field');
         // we don't initialize the field but set the appropriate values
         $field->opt = $helper->opt;
         // copy all the settings to each field
         $field->opt['label'] = $column->getFullQualifiedLabel();
         $field->column = $column;
         $event->data['fields'][] = $field;
     }
     return true;
 }

 /**
  * Display the tag page
  *
  * @param Doku_Event $event The TPL_ACT_UNKNOWN event
  * @param array      $param optional parameters (unused)
  */
 function _handle_tpl_act(Doku_Event &$event, $param)
 {
     global $lang;
     if ($event->data != 'showtag') {
         return;
     }
     $event->preventDefault();
     $tagns = $this->getConf('namespace');
     $flags = explode(',', str_replace(" ", "", $this->getConf('pagelist_flags')));
     $tag = trim(str_replace($this->getConf('namespace') . ':', '', $_REQUEST['tag']));
     $ns = trim($_REQUEST['ns']);
     /* @var helper_plugin_tag $helper */
     if ($helper = $this->loadHelper('tag')) {
         $pages = $helper->getTopic($ns, '', $tag);
     }
     if (!empty($pages)) {
         // let Pagelist Plugin do the work for us
         if (!($pagelist = $this->loadHelper('pagelist'))) {
             return false;
         }
         /* @var helper_plugin_pagelist $pagelist */
         $pagelist->setFlags($flags);
         $pagelist->startList();
         foreach ($pages as $page) {
             $pagelist->addPage($page);
         }
         print '<h1>TAG: ' . hsc(str_replace('_', ' ', $_REQUEST['tag'])) . '</h1>' . DOKU_LF;
         print '<div class="level1">' . DOKU_LF;
         print $pagelist->finishList();
         print '</div>' . DOKU_LF;
     } else {
         print '<div class="level1"><p>' . $lang['nothingfound'] . '</p></div>';
     }
 }

 /**
  * Hook js script into page headers.
  *
  * @author Samuele Tognini <samuele@cli.di.unipi.it>
  */
 public function _handle_before(Doku_Event $event, $param)
 {
     $act = act_clean($event->data);
     if ($act != 'diff') {
         return;
     }
     $event->preventDefault();
     revisionsfull_html_diff();
 }

 /**
  * @param Doku_Event $event  event object by reference
  * @param mixed      $param  [the parameters passed as fifth argument to register_hook() when this
  *                           handler was registered]
  * @return void
  */
 public function handle_register_action(Doku_Event &$event, $param)
 {
     if ($event->data !== 'register') {
         return;
     }
     //no other action handlers needed
     $event->stopPropagation();
     $event->preventDefault();
     $this->override_html_register();
 }

 /**
  * @param Doku_Event $event  event object by reference
  * @param mixed      $param  [the parameters passed as fifth argument to register_hook() when this
  *                           handler was registered]
  * @return void
  */
 public function handle_ajax_call_unknown(Doku_Event &$event, $param)
 {
     if ($event->data !== 'iwiki_list') {
         return;
     }
     $event->stopPropagation();
     $event->preventDefault();
     $a = getInterwiki();
     ksort($a);
     echo json_encode($a);
 }