<?php

/**
 * @file WebFeedBlockPlugin.inc.php
 *
 * Copyright (c) 2003-2012 John Willinsky
 * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
 *
 * @class WebFeedBlockPlugin
 * @ingroup plugins_generic_webFeed
 *
 * @brief Class for block component of web feed plugin
 */

// $Id$


import('lib.pkp.classes.plugins.BlockPlugin');

class WebFeedBlockPlugin extends BlockPlugin {
	/** @var $parentPluginName string Name of parent plugin */
	var $parentPluginName;

	function WebFeedBlockPlugin($parentPluginName) {
		parent::BlockPlugin();
		$this->parentPluginName = $parentPluginName;
	}

	/**
	 * Get the name of this plugin. The name must be unique within
	 * its category.
	 * @return String name of plugin
	 */
	function getName() {
		return 'WebFeedBlockPlugin';
	}

	/**
	 * Hide this plugin from the management interface (it's subsidiary)
	 */
	function getHideManagement() {
		return true;
	}

	/**
	 * Get the display name of this plugin.
	 * @return String
	 */
	function getDisplayName() {
		return __('plugins.generic.webfeed.displayName');
	}

	/**
	 * Get a description of the plugin.
	 */
	function getDescription() {
		return __('plugins.generic.webfeed.description');
	}

	/**
	 * Get the supported contexts (e.g. BLOCK_CONTEXT_...) for this block.
	 * @return array
	 */
	function getSupportedContexts() {
		return array(BLOCK_CONTEXT_LEFT_SIDEBAR, BLOCK_CONTEXT_RIGHT_SIDEBAR);
	}

	/**
	 * Get the web feed plugin
	 * @return object
	 */
	function &getWebFeedPlugin() {
		$plugin =& PluginRegistry::getPlugin('generic', $this->parentPluginName);
		return $plugin;
	}

	/**
	 * Override the builtin to get the correct plugin path.
	 * @return string
	 */
	function getPluginPath() {
		$plugin =& $this->getWebFeedPlugin();
		return $plugin->getPluginPath();
	}

	/**
	 * Override the builtin to get the correct template path.
	 * @return string
	 */
	function getTemplatePath() {
		$plugin =& $this->getWebFeedPlugin();
		return $plugin->getTemplatePath() . 'templates/';
	}

	/**
	 * Get the HTML contents for this block.
	 * @param $templateMgr object
	 * @return $string
	 */
	function getContents(&$templateMgr) {
		$journal =& Request::getJournal();
		if (!$journal) return '';

		$plugin =& $this->getWebFeedPlugin();
		$displayPage = $plugin->getSetting($journal->getId(), 'displayPage');
		$requestedPage = Request::getRequestedPage();
		$issueDao =& DAORegistry::getDAO('IssueDAO');
		$currentIssue =& $issueDao->getCurrentIssue($journal->getId(), true);

		if ( ($currentIssue) && (($displayPage == 'all') || ($displayPage == 'homepage' && (empty($requestedPage) || $requestedPage == 'index' || $requestedPage == 'issue')) || ($displayPage == 'issue' && $displayPage == $requestedPage)) ) {
			return parent::getContents($templateMgr);
		} else {
			return '';
		}
	}
}

?>