/core/admin/page_album_modules/loader.php

<?php

/**
 * BP-MEDIA SCREEN RENDERING CLASS "ADMIN-> ALBUM MODULES"
 * Generates the admin screen "Album Modules" page. Handles form submissions. Updates global config variable and
 * stored settings in database when parameters are changed.
 *
 * @version 0.1.9
 * @since 0.1.9
 * @package BP-Media
 * @subpackage Admin
 * @license GPL v2.0
 * @link http://code.google.com/p/buddypress-media/
 *
 * ========================================================================================================
 */

// Prevent hackers from directly calling this page
if(preg_match('#' . basename(__FILE__) . '#', $_SERVER['PHP_SELF'])) {
	die('You are not allowed to call this page directly.');
}


// Include all of the admin base page base classes
// ===============================================================================================

$base_page_classes = glob( BPM_PATH_BASE .'/core/album_modules/admin_base/*.php');

foreach ( $base_page_classes as $path ){

	if( file_exists($path) ){

		include_once ($path);
	}
}


// ============================================================================================================ //

class BPM_admin_page_albumModules extends BPM_admin_page_base {


    /**
     * Listens for form submission and triggers form processor function
     *
     * @version 0.1.9
     * @since 0.1.9
     */

    function __construct() {

	    $this->filepath = admin_url() . 'admin.php?page=' . $_GET['page'];
	    $this->page = $_GET['page'];
    }


    /**
     * Enqueues the selected tab's scripts in the page header
     *
     * @version 0.1.9
     * @since 0.1.9
     */

    public function enqueueScripts() {

	    // Load scripts used by all tabs on this page
	    // ======================================================

	    wp_enqueue_script( 'bpm-adminNotifier');

	    global $bpm;
	    $bpm->albumModules->loadAdminScripts();

    }


    /**
     * Enqueues the selected tab's styles in the page header
     *
     * @version 0.1.9
     * @since 0.1.9
     */

    public function enqueueStyles() {

	    // Load styles used by all tabs on this page
	    // ======================================================

	    wp_enqueue_style( 'bpm-admin', BPM_URL_CORE .'/admin/css/bpm.admin.css', false, '2.8.1', 'screen' );
	    wp_enqueue_style( 'bpm-tabs-v', BPM_URL_CORE .'/admin/css/bpm.tabs.v.css', false, '2.5.0', 'screen' );
	    wp_enqueue_style( 'bpm-ui-base', BPM_URL_LIB .'/jquery/ui/css/jquery.ui.base.css', false, '2.8.1', 'screen');
	    wp_enqueue_style( 'bpm-ui-theme', BPM_URL_CORE .'/admin/css/bpm.ui.theme.css', false, '2.8.1', 'screen' );
	    wp_enqueue_style( 'bpm-album-modules', BPM_URL_CORE .'/admin/css/bpm.album.modules.css', false, '2.8.1', 'screen' );

	    global $bpm;
	    $bpm->albumModules->loadAdminStyles();

    }

    /**
     * Processes module configuration settings while preventing one module from overwriting another module's settings.
     *
     * Accepts data from a submitted admin settings form. Uses variables list in hidden 'page_options' form field
     * to determine which fields to load from the form. Updates each $bp->bpa->options['media_module'settings'][$module_class][$option]
     * on the form in the global $bp->bpa->options variable, then writes the $bp->bpa->options variable to the database.
     *
     * @TODO Add error checking, sanitizing eg: $value = sanitize_option($option, $value), etc. At present bad
     *       user input can crash the plugin and damage the database.
     * @version 0.1.9
     * @since 0.1.9
     */

    function processor() {

        global $bpm;

	// CASE 1 - User is updating an album module's configuration settings
	// =================================================================================================================

        if ( isset($_POST['updateoption']) ) {

                check_admin_referer('bpm_admin_settings');

		if( current_user_can('install_plugins') ){

			// Save options and show user if update was successful
		    
			try {
			    
				$bpm->config->processHTMLForm($_POST);	
				
				?>
				<script type="text/javascript">

				    jQuery(document).ready(function(){

					jQuery.bpm_admin_notify.add({

						title: "<?php _e("Settings Updated", "bp-media"); ?>",
						text:  "<?php _e("BP-Media has updated the album module's settings", "bp-media"); ?>",
						image:  "<?php echo BPM_URL_CORE . '/admin/css/images/bpm_admin_notify_success.png' ?>"
					});

				    });

				</script>
				<?php				
				
			}
			catch (BPM_exception $fail) {
			    
				?>
				<script type="text/javascript">

				    jQuery(document).ready(function(){

					jQuery.bpm_admin_notify.add({

						title: "<?php _e("Update Error", "bp-media"); ?>",
						text:  "<?php _e("Error updating the album module's settings", "bp-media"); ?>",
						image:  "<?php echo BPM_URL_CORE . '/admin/css/images/bpm_admin_notify_fail.png' ?>"
					});

				    });

				</script>
				<?php			    			    
			}

		}
		else {
			    die("You do not have security clearance to do this");
		}

	}

	// CASE 2 - User is updating a album module's configuration settings
	// =================================================================================================================

	elseif( isset($_POST['admin_ajax_form']) ) {

		check_admin_referer('bpm_admin_ajax');

		$media_modules = BPM_Multimedia::get_registered_media_modules();
		$module_class = trim($_POST['module_class']);

		// Check that the media module class posted in the form actually exists

		if( in_array($module_class, $media_modules) ) {

			call_user_func(array($module_class,'admin_ajaxForm'));
		}
		else {
			echo "You are attempting to save AJAX form data for a media module that is not currently loaded\n";
			BPM_debug::dump($_POST);
			die;
		}

	}

	// CASE 3 - User is enabling, disabling, or resetting a album module
	// =================================================================================================================

	elseif( isset($_GET['bpm_action']) ){ ;

		check_admin_referer('bpm_admin_settings');

		if( $_GET['bpm_action'] == 'activate'){

			$san = new BPM_sanitize();
			$module_slug = $san->slug($_GET['module'], null, $valid);

			if($valid){
				$activate_ok = $bpm->albumModules->activateBySlug($module_slug);
			}

			if($valid && $activate_ok){

			    ?>
			    <script type="text/javascript">

				jQuery(document).ready(function(){

				    jQuery.bpm_admin_notify.add({

					    title: "<?php _e("Album Module Activated", "bp-media"); ?>",
					    text:  "<?php _e("BP-Media has successfully activated the album module.", "bp-media"); ?>",
					    image:  "<?php echo BPM_URL_CORE . '/admin/css/images/bpm_admin_notify_success.png' ?>"
				    });

				});

			    </script>
			    <?php

			}
			else {

			    ?>
			    <script type="text/javascript">

				jQuery(document).ready(function(){

				    jQuery.bpm_admin_notify.add({

					    title: "<?php _e("Album Module Error", "bp-media"); ?>",
					    text:  "<?php _e("Error activating the album module.", "bp-media"); ?>",
					    image:  "<?php echo BPM_URL_CORE . '/admin/css/images/bpm_admin_notify_fail.png' ?>"
				    });

				});

			    </script>
			    <?php
			}
		}

		if( $_GET['bpm_action'] == 'deactivate'){

			$san = new BPM_sanitize();
			$module_slug = $san->slug($_GET['module'], null, $valid);

			if($valid){
				$activate_ok = $bpm->albumModules->deactivateBySlug($module_slug);
			}

			if($valid && $activate_ok){

			    ?>
			    <script type="text/javascript">

				jQuery(document).ready(function(){

				    jQuery.bpm_admin_notify.add({

					    title: "<?php _e("Album Module Dectivated", "bp-media"); ?>",
					    text:  "<?php _e("BP-Media has successfully deactivated the album module.", "bp-media"); ?>",
					    image:  "<?php echo BPM_URL_CORE . '/admin/css/images/bpm_admin_notify_success.png' ?>"
				    });

				});

			    </script>
			    <?php

			}
			else {

			    ?>
			    <script type="text/javascript">

				jQuery(document).ready(function(){

				    jQuery.bpm_admin_notify.add({

					    title: "<?php _e("Album Module Error", "bp-media"); ?>",
					    text:  "<?php _e("Error deactivating the album module.", "bp-media"); ?>",
					    image:  "<?php echo BPM_URL_CORE . '/admin/css/images/bpm_admin_notify_fail.png' ?>"
				    });

				});

			    </script>
			    <?php
			}
		}

		if( $_GET['bpm_action'] == 'reset'){

		}

	}


    }



    /**
     * Renders all tabs on the admin screen "Content" page
     *
     * Prints the jQuery configuration code to the HTML stream. Uses entries in the $tabs array to iterate through
     * the tab rendering functions inside the class. Each tab rendering function writes HTML for one tab to the
     * HTML stream, encapsulated for jQuery.
     *
     * @version 0.1.9
     * @since 0.1.9
     */

    function render() {

	global $bp, $bpm;

	// If a form is submitted with data, run the processor function.
	if ( !empty($_POST) || isset($_GET['bpm_action']) ){
	    $this->processor();
	}

	$selected_module = $bpm->albumModules->getSelectedModule();
	$album_modules = $bpm->albumModules->getAdminModules();

	?>

	<script type="text/javascript">

	    jQuery(document).ready(function(){

		<?php // Adds row-striping to our tables  ////////////////////////// ?>

		jQuery('table.form-table tbody tr:even').addClass('alt');

	    });

	</script>

        <div class="bpm_header_small"></div>

	<div class="tabs_v">

		<div class="bpm_section_intro">

			<div class="icon"><img src="<?php echo BPM_URL_CORE . '/admin/page_album_modules/album_modules_icon.png' ?>" alt="Album Modules" width="64" height="64" /></div>

			<div class="title">
			    <?php _e('Album Modules',"bp-media") ?>
			</div>

			<div class="details">
			    <?php _e("Album modules control the structure, content, and layout of user albums.They can
				hold one (or many) media types, and can be set to let different classes of users upload different numbers and types
				of media items to their albums. Module designers can add arbitrary screens to handle tasks like item
				rating, multi-stage uploads, and selling content. See the <a href='http://code.google.com/p/buddypress-media/wiki/AlbumModules'>Album Modules</a> wiki page.","bp-media") ?>
			</div>

		</div>

	    <div class="parent_panel">

		    <ul class="parent_nav">
			<?php

			    // Build the navigation tabs
			    foreach($album_modules as $album_module) {

				    // Handle no module being selected, which happens on the first load of the admin page.
				    if(!$selected_module){

					    $selected_module = $album_module->getSlug();
				    }

				    if($album_module->getSlug() == $selected_module){

					    $class = "tab_selected";
					    $active_module = $album_module;
				    }
				    else {
					    $class = "tab_default";
				    }


				    echo "\n\t\t<li class='" . $class . "'><a href='admin.php?page=bpm-album-modules&module=" . $album_module->getSlug() . "'>" . $album_module->getName() . "</a></li>";
			    }
			    unset($album_module);
			?>
		    </ul>

		    <div id="<?php echo $active_module->getSlug();?>" class="module_panel" >

		    <!-- Begin module header -->

			<div class="bpm_module_header">

			    <div class ="icon">
				<img src='<?php echo $active_module->getIconPath() ?>' width='75' height='75' />
			    </div>

			    <div class="admin">

				<div class="title_block">
				    <div class="title"><?php echo $active_module->getName() ?></div>
				</div>

				<div class="description">
				    <?php echo $active_module->getDesc()  ?>
				</div>

				<div class="footer">
					<span class="item"> <?php echo $active_module->getVersion() ?></span>
					<span class="spacer">|</span>
					<span class="item"> <?php echo $active_module->getAuthor() ?></span>
					<span class="spacer">|</span>
					<span class="item"> <?php echo $active_module->getSite() ?></span>
				</div>

			    </div>

			</div>

			<?php

			$module_data = $bpm->albumModules->getBySlug($active_module->getSlug());

			if($module_data['active'] == true) {

				?>
				<div class="bpm_module_status">
				    <div class="message">
					<div class="icon_working"></div>
					<div class="text">Active</div>
				    </div>
				    <div class="detail">Module is available to users</div>
				</div>
				<?php
			}
			else {
				?>
				<div class="bpm_module_status">
				    <div class="message">
					<div class="icon_deactivated"></div>
					<div class="text">Deactivated</div>
				    </div>
				    <div class="detail">Module deactivated by admin</div>
				</div>
				<?php
			}
			?>

			<div class="bpm_module_control">

			    <div class="actions">

			    <?php

			    if($module_data['active'] == true) {

				    ?>
				    <a class="action"
				       title="<?php _e("Make this module unavailable to users, and remove its page from the site", "bp-media"); ?>"
				       href="<?php echo wp_nonce_url( $this->filepath . "&bpm_action=deactivate&module=" . $active_module->getSlug(), 'bpm_admin_settings'); ?>"
				    >
					<?php _e("Deactivate Module", "bp-media"); ?>
				    </a>

				    <a class="action"
				       title="<?php _e("Delete all uploaded content and reset configuration to default values"); ?>"
				       href="<?php echo wp_nonce_url( $this->filepath . "&bpm_action=reset&module=" . $active_module->getSlug(), 'bpm_admin_settings'); ?>"
				    >
					<?php _e("Reset Module", "bp-media"); ?>
				    </a>

				    <?php
			    }
			    else {
				    ?>

				    <a class="action"
				       title="<?php _e("Make this module available for use", "bp-media"); ?>"
				       href="<?php echo wp_nonce_url( $this->filepath . "&bpm_action=activate&module=" . $active_module->getSlug(), 'bpm_admin_settings'); ?>"
				    >
					<?php _e("Activate Module", "bp-media"); ?>
				    </a>

				    <a class="action"
				       title="<?php _e("Delete all uploaded content and completely remove this module from the system"); ?>"
				       href="<?php echo wp_nonce_url( $this->filepath . "&bpm_action=reset&module=" . $active_module->getSlug(), 'bpm_admin_settings'); ?>"
				    >
					<?php _e("Delete Module", "bp-media"); ?>
				    </a>

				    <?php
			    }
			    ?>

			    </div>

			</div>

			<!-- End module header -->


			<!-- Begin module config page -->

			<div class="bpa_module_body">

			    <?php echo $active_module->adminConfigPage() ?>
			</div>

			<!-- End module config page -->



		    </div>



	    </div>
	</div>

	<div class="bpm_footer"></div>

	<?php

    }

 } // End of class BPM_admin_page_albumModules

?>