class.ilSystemStyleMessageStack.php

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<?php

class ilSystemStyleMessageStack{

        protected $messages = array();

        public function prependMessage(ilSystemStyleMessage $message){
                array_unshift($this->messages , $message);
        }

        public function addMessage(ilSystemStyleMessage $message){
                $this->messages[] = $message;
        }

        public function sendMessages($keep = false){
                foreach($this->getJoinedMessages() as $type => $joined_message){
                        switch($type){
                                case ilSystemStyleMessage::TYPE_SUCCESS:
                                        ilUtil::sendSuccess($joined_message,$keep);
                                        break;
                                case ilSystemStyleMessage::TYPE_INFO:
                                        ilUtil::sendInfo($joined_message,$keep);
                                        break;
                                case ilSystemStyleMessage::TYPE_ERROR:
                                        ilUtil::sendFailure($joined_message,$keep);
                                        break;
                        }
                }
        }

        public function getJoinedMessages(){
                $joined_messages = [];
                foreach($this->getMessages() as $message){
                        if(!array_key_exists($message->getTypeId(),$joined_messages)){
                                $joined_messages[$message->getTypeId()] = "";
                        }
                        $joined_messages[$message->getTypeId()] .= $message->getMessageOutput();
                }
                return $joined_messages;
        }

        public function getMessages()
        {
                return $this->messages;
        }

        public function setMessages($messages)
        {
                $this->messages = $messages;
        }

        public function hasMessages(){
                return count($this->getMessages()) > 0;
        }

}