sessioncommunities.online/sites/+components/tbl-communities.php

<?php
	require_once 'php/utils/utils.php';
	require_once 'php/servers/servers-rooms.php';
	require_once 'php/assets/room-invites.php';
	require_once 'php/assets/room-icons.php';
	require_once 'php/assets/server-icons.php';

	/**
	 * @var CommunityRoom[] $rooms
	 */

	// Once handlers are attached in JS, this check ceases to be useful.
	function column_sortable($id) {
		// Join URL contents are not guaranteed to have visible text.
		return $id != "qr_code" && $id != "preview" && $id != "join_url";
	}

	function sort_onclick($colno) {
		global $TABLE_COLUMNS;
		$column = $TABLE_COLUMNS[$colno];
		$name = isset($column['name_long']) ? $column['name_long'] : $column['name'];
		if (!column_sortable($column['id'])) return " title='$name'";
		return " title='Click to sort by $name.'";
	}

	// Note: Changing the names or columns displayed requires updating
	// the --expanded-static-column-width and --collapsed-static-column-width CSS variables.

	$TABLE_COLUMNS = [
		['id' => "language", 'name' => "L", 'name_long' => "Language"],
		['id' => "name", 'name' => "Name"],
		['id' => "description", 'name' => "About", 'name_long' => "Description"],
		['id' => "users", 'name' => "#", 'name_long' => "Active Users"],
		['id' => "preview", 'name' => "Preview"],
		['id' => "qr_code", 'name' => "QR", 'name_long' => "QR Code (for use in-app)"],
		['id' => "server_icon", 'name' => "Host", 'name_long' => "Server host"],
		['id' => "join_url", 'name' => "URL", 'name_long' => "Join URL (for use in-app)"],
	];

	$SERVER_ICON_COLUMN = array_keys(array_filter($TABLE_COLUMNS, function($column){return $column['id'] == "server_icon";}))[0];
?>

<table id="tbl_communities" data-sort="true" data-sort-asc="true" data-sorted-by="<?=$SERVER_ICON_COLUMN?>">
	<tr>
<?php foreach ($TABLE_COLUMNS as $colno => $column): ?>
		<th<?=sort_onclick($colno)?> id="th_<?=$column['id']?>" class="tbl_communities__th">
			<?=$column['name']?>

		</th>
<?php endforeach; ?>
	</tr>
<?php foreach ($rooms as $id => $room): ?>
	<?php
		if ($room->is_off_record()) {
			// This can later allow SOGS
			// to pass server-wide info using hidden dummy rooms.
			continue;
		}

		$pubkey = $room->server->get_pubkey();
		$icon_hue = hexdec($pubkey[2] . $pubkey[2]);
		$icon_color = "hsl($icon_hue, 80%, 50%)";
		$server_icon = server_icon($room->server, '64x64');
		$pubkey_shorthand = strtoupper($pubkey[0] . $pubkey[1]);

		$id = html_sanitize($room->get_room_identifier());
		$language = html_sanitize($room->get_language_flag());
		$name = html_sanitize($room->name);
		// $name_trunc = truncate($name, 16);
		$name_trunc = "Community";
		$desc = html_sanitize($room->description);
		$users = html_sanitize($room->active_users);
		$users_cutoff = html_sanitize($room->format_user_cutoff_period());
		$preview_link = html_sanitize($room->get_preview_url());
		$join_link = html_sanitize($room->get_join_url());
		$pubkey = html_sanitize($pubkey);
		$hostname = html_sanitize($room->server->get_hostname());

		$class_list = ["room-row"];

		if ($room->is_stickied_room()) {
			$class_list[] = "room-row-stickied";
		}

		$classname = implode(" ", $class_list);

		/**
		 * Note on refactoring:
		 * Icon is hard to move to JSON because it'd have to be generated by fetching code
		 * Icon safety is depended on by CSS styles
		 */
	?>

	<tr class="<?=$classname?>"
		itemscope
		itemtype="https://schema.org/EntryPoint"
		data-id="<?=$id?>"
		data-icon='<?=room_icon($room, '64x64')?>:<?=$room->icon_safety()?>'
	>
		<td class="td_language" title="Language flag for '<?=$name_trunc?>'"><?=$language?></td>
		<td class="td_name">
			<a
				href="<?=$preview_link?>"
				target="_blank"
				title="Click here to preview <?=$name_trunc?>"
				rel="noopener noreferrer external nofollow"
				itemprop="name"
			><?=
				$name
			?></a>
			<span><?php /* class="tags-container" */ ?>
<?php foreach ($room->get_showcased_room_tags() as $tag): ?>
				<span
					class="tag <?=$tag->get_tag_classname()?> badge"
					title="<?=$tag->get_description_sanitized()?>"
				><?=
					truncate($tag->get_text_sanitized(), 16)
				?></span>
<?php endforeach; ?>
			</span>
		</td>
		<td
			class="td_description"
			title="Description"
			itemprop="description"
		><?=$desc?></td>
		<td
			class="td_users"
			title="<?=$users?> active users in the last <?=$users_cutoff?>."
		><?=$users?></td>
		<td class="td_preview">
			<a
				href="<?=$preview_link?>"
				title="Preview <?=$name_trunc?>"
				target="_blank"
				rel="noopener noreferrer external nofollow"
			>
				<span></span>
			</a>
		</td>
		<td class="td_qr_code">
			<a
				href="<?=room_qr_code($room)?>"
				target="_blank"
			>
				<div
					title="Click here to view details for <?=$name_trunc?>"
				></div>
			</a>
		</td>
		<td class="td_server_icon"
			title="Host: <?=$hostname?>"
		>
<?php if (empty($server_icon)): ?>
			<div class="td_server_icon-circle" style="background-color: <?=$icon_color?>">
				<span class="td_server_icon-text"><?=$pubkey_shorthand?></span>
			</div>
<?php else: ?>
			<div class="td_server_icon-circle" style="background-image: url('<?=$server_icon?>')"></div>
<?php endif; ?>
		</td>
		<td class="td_join_url">
			<div>
				<span></span><?php /* Join URL preview */ ?>
				<a
					class="noscript"
					href="<?=$join_link?>"
					title="Right click -> Copy link"
					rel="external nofollow"
				>Copy this</a>
			</div>
		</td>
	</tr>
<?php endforeach; ?>
</table>