ManageAssets: allow batch deletion of assets

controllers/ManageAssets.php

@@ -14,10 +14,37 @@ class ManageAssets extends HTMLController
 		if (!Registry::get('user')->isAdmin())
 			throw new NotAllowedException();
 
+		if (isset($_POST['deleteChecked'], $_POST['delete']) && Session::validateSession())
+			$this->handleAssetDeletion();
+
 		Session::resetSessionToken();
 
 		$options = [
+			'form' => [
+				'action' => BASEURL . '/manageassets/?' . Session::getSessionTokenKey() . '=' . Session::getSessionToken(),
+				'method' => 'post',
+				'class' => 'col-md-6 text-end',
+				'is_embed' => true,
+				'buttons' => [
+					'deleteChecked' => [
+						'type' => 'submit',
+						'caption' => 'Delete checked',
+						'class' => 'btn-danger',
+						'onclick' => 'return confirm(\'Are you sure you want to delete these items?\')',
+					],
+				],
+			],
 			'columns' => [
+				'checkbox' => [
+					'header' => '<input type="checkbox" id="selectall">',
+					'is_sortable' => false,
+					'parse' => [
+						'type' => 'function',
+						'data' => function($row) {
+							return '<input type="checkbox" class="asset_select" name="delete[]" value="' . $row['id_asset'] . '">';
+						},
+					],
+				],
 				'id_asset' => [
 					'value' => 'id_asset',
 					'header' => 'ID',
@@ -71,6 +98,7 @@ class ManageAssets extends HTMLController
 			'title' => 'Manage assets',
 			'no_items_label' => 'No assets meet the requirements of the current filter.',
 			'items_per_page' => 30,
+			'index_class' => 'col-md-6',
 			'base_url' => BASEURL . '/manageassets/',
 			'get_data' => function($offset = 0, $limit = 30, $order = '', $direction = 'down') {
 				if (!in_array($order, ['id_asset', 'id_user_uploaded', 'title', 'subdir', 'filename']))
@@ -100,7 +128,25 @@ class ManageAssets extends HTMLController
 		];
 
 		$table = new GenericTable($options);
-		parent::__construct('Asset management - Page ' . $table->getCurrentPage() .'');
+		parent::__construct('Asset management - Page ' . $table->getCurrentPage());
-		$this->page->adopt(new TabularData($table));
+
+		$wrapper = new AssetManagementWrapper();
+		$this->page->adopt($wrapper);
+		$wrapper->adopt(new TabularData($table));
+	}
+
+	private function handleAssetDeletion()
+	{
+		if (!isset($_POST['delete']) || !is_array($_POST['delete']))
+			throw new UnexpectedValueException();
+
+		foreach ($_POST['delete'] as $id_asset)
+		{
+			$asset = Asset::fromId($id_asset);
+			$asset->delete();
+		}
+
+		header('Location: ' . BASEURL . '/manageassets/');
+		exit;
 	}
 }

templates/AssetManagementWrapper.php

@@ -0,0 +1,36 @@
+<?php
+/*****************************************************************************
+ * AssetManagementWrapper.php
+ * Defines asset management wrapper template.
+ *
+ * Kabuki CMS (C) 2013-2015, Aaron van Geffen
+ *****************************************************************************/
+
+class AssetManagementWrapper extends Template
+{
+	public function html_main()
+	{
+		echo '
+		<form action="" method="post">';
+
+		foreach ($this->_subtemplates as $template)
+			$template->html_main();
+
+		echo '
+		</form>
+		<script type="text/javascript" defer="defer">
+			const allAreSelected = () => {
+				return document.querySelectorAll(".asset_select").length ===
+					document.querySelectorAll(".asset_select:checked").length;
+			};
+
+			const selectAll = document.getElementById("selectall");
+			selectAll.addEventListener("change", event => {
+				const newSelectedState = !allAreSelected();
+				document.querySelectorAll(".asset_select").forEach(el => {
+					el.checked = newSelectedState;
+				});
+			});
+		</script>';
+	}
+}

templates/TabularData.php

@@ -145,8 +145,12 @@ class TabularData extends SubTemplate
 
 	protected function showForm($form)
 	{
+		if (!isset($form['is_embed']))
 			echo '
 			<form action="', $form['action'], '" method="', $form['method'], '" class="', $form['class'], '">';
+		else
+			echo '
+			<div class="', $form['class'], '">';
 
 		if (!empty($form['is_group']))
 			echo '
@@ -206,7 +210,12 @@ class TabularData extends SubTemplate
 			foreach ($form['buttons'] as $name => $button)
 			{
 				echo '
-					<button class="btn ', isset($button['class']) ? $button['class'] : 'btn-primary', '" type="', $button['type'], '" name="', $name, '">', $button['caption'], '</button>';
+					<button class="btn ', isset($button['class']) ? $button['class'] : 'btn-primary', '" type="', $button['type'], '" name="', $name, '"';
+
+				if (isset($button['onclick']))
+					echo ' onclick="', $button['onclick'], '"';
+
+				echo '>', $button['caption'], '</button>';
 
 				if (isset($button['html_after']))
 					echo $button['html_after'];
@@ -216,7 +225,11 @@ class TabularData extends SubTemplate
 			echo '
 				</div>';
 
+		if (!isset($form['is_embed']))
 			echo '
 			</form>';
+		else
+			echo '
+			</div>';
 	}
 }