Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

This commit is contained in:
Pantheon Automation 2015-08-17 17:00:26 -07:00 committed by Greg Anderson
commit 9921556621
13277 changed files with 1459781 additions and 0 deletions

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<?php
/**
* @file
* Contains \Drupal\book\Access\BookNodeIsRemovableAccessCheck.
*/
namespace Drupal\book\Access;
use Drupal\book\BookManagerInterface;
use Drupal\Core\Access\AccessResult;
use Drupal\Core\Routing\Access\AccessInterface;
use Drupal\node\NodeInterface;
/**
* Determines whether the requested node can be removed from its book.
*/
class BookNodeIsRemovableAccessCheck implements AccessInterface{
/**
* Book Manager Service.
*
* @var \Drupal\book\BookManagerInterface
*/
protected $bookManager;
/**
* Constructs a BookNodeIsRemovableAccessCheck object.
*
* @param \Drupal\book\BookManagerInterface $book_manager
* Book Manager Service.
*/
public function __construct(BookManagerInterface $book_manager) {
$this->bookManager = $book_manager;
}
/**
* Checks access for removing the node from its book.
*
* @param \Drupal\node\NodeInterface $node
* The node requested to be removed from its book.
*
* @return \Drupal\Core\Access\AccessResultInterface
* The access result.
*/
public function access(NodeInterface $node) {
return AccessResult::allowedIf($this->bookManager->checkNodeIsRemovable($node))->cacheUntilEntityChanges($node);
}
}

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<?php
/**
* @file
* Contains \Drupal\book\BookBreadcrumbBuilder.
*/
namespace Drupal\book;
use Drupal\Core\Access\AccessManagerInterface;
use Drupal\Core\Breadcrumb\BreadcrumbBuilderInterface;
use Drupal\Core\Entity\EntityManagerInterface;
use Drupal\Core\Link;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\node\NodeInterface;
/**
* Provides a breadcrumb builder for nodes in a book.
*/
class BookBreadcrumbBuilder implements BreadcrumbBuilderInterface {
use StringTranslationTrait;
/**
* The node storage.
*
* @var \Drupal\Core\Entity\EntityStorageInterface
*/
protected $nodeStorage;
/**
* The access manager.
*
* @var \Drupal\Core\Access\AccessManagerInterface
*/
protected $accessManager;
/**
* The current user account.
*
* @var \Drupal\Core\Session\AccountInterface
*/
protected $account;
/**
* Constructs the BookBreadcrumbBuilder.
*
* @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
* The entity manager service.
* @param \Drupal\Core\Access\AccessManagerInterface $access_manager
* The access manager.
* @param \Drupal\Core\Session\AccountInterface $account
* The current user account.
*/
public function __construct(EntityManagerInterface $entity_manager, AccessManagerInterface $access_manager, AccountInterface $account) {
$this->nodeStorage = $entity_manager->getStorage('node');
$this->accessManager = $access_manager;
$this->account = $account;
}
/**
* {@inheritdoc}
*/
public function applies(RouteMatchInterface $route_match) {
$node = $route_match->getParameter('node');
return $node instanceof NodeInterface && !empty($node->book);
}
/**
* {@inheritdoc}
*/
public function build(RouteMatchInterface $route_match) {
$book_nids = array();
$links = array(Link::createFromRoute($this->t('Home'), '<front>'));
$book = $route_match->getParameter('node')->book;
$depth = 1;
// We skip the current node.
while (!empty($book['p' . ($depth + 1)])) {
$book_nids[] = $book['p' . $depth];
$depth++;
}
$parent_books = $this->nodeStorage->loadMultiple($book_nids);
if (count($parent_books) > 0) {
$depth = 1;
while (!empty($book['p' . ($depth + 1)])) {
if (!empty($parent_books[$book['p' . $depth]]) && ($parent_book = $parent_books[$book['p' . $depth]])) {
if ($parent_book->access('view', $this->account)) {
$links[] = Link::createFromRoute($parent_book->label(), 'entity.node.canonical', array('node' => $parent_book->id()));
}
}
$depth++;
}
}
return $links;
}
}

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<?php
/**
* @file
* Contains \Drupal\book\BookExport.
*/
namespace Drupal\book;
use Drupal\Core\Entity\EntityManagerInterface;
use Drupal\Core\Render\RendererInterface;
use Drupal\node\Entity\Node;
use Drupal\node\NodeInterface;
/**
* Provides methods for exporting book to different formats.
*
* If you would like to add another format, swap this class in container.
*/
class BookExport {
/**
* The node storage.
*
* @var \Drupal\Core\Entity\EntityStorageInterface
*/
protected $nodeStorage;
/**
* The node view builder.
*
* @var \Drupal\Core\Entity\EntityViewBuilderInterface
*/
protected $viewBuilder;
/**
* The book manager.
*
* @var \Drupal\book\BookManagerInterface
*/
protected $bookManager;
/**
* Constructs a BookExport object.
*
* @param \Drupal\Core\Entity\EntityManagerInterface $entityManager
* The entity manager.
* @param \Drupal\book\BookManagerInterface $book_manager
* The book manager.
*/
public function __construct(EntityManagerInterface $entityManager, BookManagerInterface $book_manager) {
$this->nodeStorage = $entityManager->getStorage('node');
$this->viewBuilder = $entityManager->getViewBuilder('node');
$this->bookManager = $book_manager;
}
/**
* Generates HTML for export when invoked by book_export().
*
* The given node is embedded to its absolute depth in a top level section. For
* example, a child node with depth 2 in the hierarchy is contained in
* (otherwise empty) <div> elements corresponding to depth 0 and depth 1.
* This is intended to support WYSIWYG output - e.g., level 3 sections always
* look like level 3 sections, no matter their depth relative to the node
* selected to be exported as printer-friendly HTML.
*
* @param \Drupal\node\NodeInterface $node
* The node to export.
*
* @throws \Exception
* Thrown when the node was not attached to a book.
*
* @return array
* A render array representing the HTML for a node and its children in the
* book hierarchy.
*/
public function bookExportHtml(NodeInterface $node) {
if (!isset($node->book)) {
throw new \Exception();
}
$tree = $this->bookManager->bookSubtreeData($node->book);
$contents = $this->exportTraverse($tree, array($this, 'bookNodeExport'));
return array(
'#theme' => 'book_export_html',
'#title' => $node->label(),
'#contents' => $contents,
'#depth' => $node->book['depth'],
'#cache' => [
'tags' => $node->getEntityType()->getListCacheTags(),
],
);
}
/**
* Traverses the book tree to build printable or exportable output.
*
* During the traversal, the callback is applied to each node and is called
* recursively for each child of the node (in weight, title order).
*
* @param array $tree
* A subtree of the book menu hierarchy, rooted at the current page.
* @param callable $callable
* A callback to be called upon visiting a node in the tree.
*
* @return string
* The output generated in visiting each node.
*/
protected function exportTraverse(array $tree, $callable) {
// If there is no valid callable, use the default callback.
$callable = !empty($callable) ? $callable : array($this, 'bookNodeExport');
$build = array();
foreach ($tree as $data) {
// Note- access checking is already performed when building the tree.
if ($node = $this->nodeStorage->load($data['link']['nid'])) {
$children = $data['below'] ? $this->exportTraverse($data['below'], $callable) : '';
$build[] = call_user_func($callable, $node, $children);
}
}
return $build;
}
/**
* Generates printer-friendly HTML for a node.
*
* @param \Drupal\node\NodeInterface $node
* The node that will be output.
* @param string $children
* (optional) All the rendered child nodes within the current node. Defaults
* to an empty string.
*
* @return array
* A render array for the exported HTML of a given node.
*
* @see \Drupal\book\BookExport::exportTraverse()
*/
protected function bookNodeExport(NodeInterface $node, $children = '') {
$build = $this->viewBuilder->view($node, 'print', NULL);
unset($build['#theme']);
return array(
'#theme' => 'book_node_export_html',
'#content' => $build,
'#node' => $node,
'#children' => $children,
);
}
}

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<?php
/**
* @file
* Contains \Drupal\book\BookManagerInterface.
*/
namespace Drupal\book;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\node\NodeInterface;
/**
* Provides an interface defining a book manager.
*/
interface BookManagerInterface {
/**
* Gets the data structure representing a named menu tree.
*
* Since this can be the full tree including hidden items, the data returned
* may be used for generating an an admin interface or a select.
*
* @param int $bid
* The Book ID to find links for.
* @param array|null $link
* (optional) A fully loaded menu link, or NULL. If a link is supplied, only
* the path to root will be included in the returned tree - as if this link
* represented the current page in a visible menu.
* @param int|null $max_depth
* (optional) Maximum depth of links to retrieve. Typically useful if only
* one or two levels of a sub tree are needed in conjunction with a non-NULL
* $link, in which case $max_depth should be greater than $link['depth'].
*
* @return array
* An tree of menu links in an array, in the order they should be rendered.
*
* Note: based on menu_tree_all_data().
*/
public function bookTreeAllData($bid, $link = NULL, $max_depth = NULL);
/**
* Gets the active trail IDs for the specified book at the provided path.
*
* @param string $bid
* The Book ID to find links for.
* @param array $link
* A fully loaded menu link.
*
* @return array
* An array containing the active trail: a list of mlids.
*/
public function getActiveTrailIds($bid, $link);
/**
* Loads a single book entry.
*
* The entries of a book entry is documented in
* \Drupal\book\BookOutlineStorageInterface::loadMultiple.
*
* If $translate is TRUE, it also checks access ('access' key) and
* loads the title from the node itself.
*
* @param int $nid
* The node ID of the book.
* @param bool $translate
* If TRUE, set access, title, and other elements.
*
* @return array
* The book data of that node.
*
* @see \Drupal\book\BookOutlineStorageInterface::loadMultiple
*/
public function loadBookLink($nid, $translate = TRUE);
/**
* Loads multiple book entries.
*
* The entries of a book entry is documented in
* \Drupal\book\BookOutlineStorageInterface::loadMultiple.
*
* If $translate is TRUE, it also checks access ('access' key) and
* loads the title from the node itself.
*
* @param int[] $nids
* An array of nids to load.
*
* @param bool $translate
* If TRUE, set access, title, and other elements.
*
* @return array[]
* The book data of each node keyed by NID.
*
* @see \Drupal\book\BookOutlineStorageInterface::loadMultiple
*/
public function loadBookLinks($nids, $translate = TRUE);
/**
* Returns an array of book pages in table of contents order.
*
* @param int $bid
* The ID of the book whose pages are to be listed.
* @param int $depth_limit
* Any link deeper than this value will be excluded (along with its
* children).
* @param array $exclude
* (optional) An array of menu link ID values. Any link whose menu link ID
* is in this array will be excluded (along with its children). Defaults to
* an empty array.
*
* @return array
* An array of (menu link ID, title) pairs for use as options for selecting
* a book page.
*/
public function getTableOfContents($bid, $depth_limit, array $exclude = array());
/**
* Finds the depth limit for items in the parent select.
*
* @param array $book_link
* A fully loaded menu link that is part of the book hierarchy.
*
* @return int
* The depth limit for items in the parent select.
*/
public function getParentDepthLimit(array $book_link);
/**
* Collects node links from a given menu tree recursively.
*
* @param array $tree
* The menu tree you wish to collect node links from.
* @param array $node_links
* An array in which to store the collected node links.
*/
public function bookTreeCollectNodeLinks(&$tree, &$node_links);
/**
* Provides book loading, access control and translation.
*
* @param array $link
* A book link.
*
* Note: copied from _menu_link_translate() in menu.inc, but reduced to the
* minimal code that's used.
*/
public function bookLinkTranslate(&$link);
/**
* Gets the book for a page and returns it as a linear array.
*
* @param array $book_link
* A fully loaded book link that is part of the book hierarchy.
*
* @return array
* A linear array of book links in the order that the links are shown in the
* book, so the previous and next pages are the elements before and after the
* element corresponding to the current node. The children of the current node
* (if any) will come immediately after it in the array, and links will only
* be fetched as deep as one level deeper than $book_link.
*/
public function bookTreeGetFlat(array $book_link);
/**
* Returns an array of all books.
*
* This list may be used for generating a list of all the books, or for
* building the options for a form select.
*
* @return array
* An array of all books.
*/
public function getAllBooks();
/**
* Handles additions and updates to the book outline.
*
* This common helper function performs all additions and updates to the book
* outline through node addition, node editing, node deletion, or the outline
* tab.
*
* @param \Drupal\node\NodeInterface $node
* The node that is being saved, added, deleted, or moved.
*
* @return bool
* TRUE if the book link was saved; FALSE otherwise.
*/
public function updateOutline(NodeInterface $node);
/**
* Saves a single book entry.
*
* @param array $link
* The link data to save.
* @param bool $new
* Is this a new book.
*
* @return array
* The book data of that node.
*/
public function saveBookLink(array $link, $new);
/**
* Returns an array with default values for a book page's menu link.
*
* @param string|int $nid
* The ID of the node whose menu link is being created.
*
* @return array
* The default values for the menu link.
*/
public function getLinkDefaults($nid);
public function getBookParents(array $item, array $parent = array());
/**
* Builds the common elements of the book form for the node and outline forms.
*
* @param array $form
* An associative array containing the structure of the form.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The current state of the form.
* @param \Drupal\node\NodeInterface $node
* The node whose form is being viewed.
* @param \Drupal\Core\Session\AccountInterface $account
* The account viewing the form.
* @param bool $collapsed
* If TRUE, the fieldset starts out collapsed.
*
* @return array
* The form structure, with the book elements added.
*/
public function addFormElements(array $form, FormStateInterface $form_state, NodeInterface $node, AccountInterface $account, $collapsed = TRUE);
/**
* Deletes node's entry from book table.
*
* @param int $nid
* The nid to delete.
*/
public function deleteFromBook($nid);
/**
* Returns a rendered menu tree.
*
* The menu item's LI element is given one of the following classes:
* - expanded: The menu item is showing its submenu.
* - collapsed: The menu item has a submenu which is not shown.
*
* @param array $tree
* A data structure representing the tree as returned from buildBookOutlineData.
*
* @return array
* A structured array to be rendered by drupal_render().
*
* @see \Drupal\Core\Menu\MenuLinkTree::build
*/
public function bookTreeOutput(array $tree);
/**
* Checks access and performs dynamic operations for each link in the tree.
*
* @param array $tree
* The book tree you wish to operate on.
* @param array $node_links
* A collection of node link references generated from $tree by
* menu_tree_collect_node_links().
*/
public function bookTreeCheckAccess(&$tree, $node_links = array());
/**
* Gets the data representing a subtree of the book hierarchy.
*
* The root of the subtree will be the link passed as a parameter, so the
* returned tree will contain this item and all its descendants in the menu
* tree.
*
* @param array $link
* A fully loaded book link.
*
* @return
* A subtree of book links in an array, in the order they should be rendered.
*/
public function bookSubtreeData($link);
/**
* Determines if a node can be removed from the book.
*
* A node can be removed from a book if it is actually in a book and it either
* is not a top-level page or is a top-level page with no children.
*
* @param \Drupal\node\NodeInterface $node
* The node to remove from the outline.
*
* @return bool
* TRUE if a node can be removed from the book, FALSE otherwise.
*/
public function checkNodeIsRemovable(NodeInterface $node);
}

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<?php
/**
* @file
* Contains \Drupal\book\BookOutline.
*/
namespace Drupal\book;
/**
* Provides handling to render the book outline.
*/
class BookOutline {
/**
* The book manager.
*
* @var \Drupal\book\BookManagerInterface
*/
protected $bookManager;
/**
* Constructs a new BookOutline.
*
* @param \Drupal\book\BookManagerInterface $book_manager
* The book manager.
*/
public function __construct(BookManagerInterface $book_manager) {
$this->bookManager = $book_manager;
}
/**
* Fetches the book link for the previous page of the book.
*
* @param array $book_link
* A fully loaded book link that is part of the book hierarchy.
*
* @return array
* A fully loaded book link for the page before the one represented in
* $book_link.
*/
public function prevLink(array $book_link) {
// If the parent is zero, we are at the start of a book.
if ($book_link['pid'] == 0) {
return NULL;
}
// Assigning the array to $flat resets the array pointer for use with each().
$flat = $this->bookManager->bookTreeGetFlat($book_link);
$curr = NULL;
do {
$prev = $curr;
list($key, $curr) = each($flat);
} while ($key && $key != $book_link['nid']);
if ($key == $book_link['nid']) {
// The previous page in the book may be a child of the previous visible link.
if ($prev['depth'] == $book_link['depth']) {
// The subtree will have only one link at the top level - get its data.
$tree = $this->bookManager->bookSubtreeData($prev);
$data = array_shift($tree);
// The link of interest is the last child - iterate to find the deepest one.
while ($data['below']) {
$data = end($data['below']);
}
$this->bookManager->bookLinkTranslate($data['link']);
return $data['link'];
}
else {
$this->bookManager->bookLinkTranslate($prev);
return $prev;
}
}
}
/**
* Fetches the book link for the next page of the book.
*
* @param array $book_link
* A fully loaded book link that is part of the book hierarchy.
*
* @return array
* A fully loaded book link for the page after the one represented in
* $book_link.
*/
public function nextLink(array $book_link) {
// Assigning the array to $flat resets the array pointer for use with each().
$flat = $this->bookManager->bookTreeGetFlat($book_link);
do {
list($key,) = each($flat);
} while ($key && $key != $book_link['nid']);
if ($key == $book_link['nid']) {
$next = current($flat);
if ($next) {
$this->bookManager->bookLinkTranslate($next);
}
return $next;
}
}
/**
* Formats the book links for the child pages of the current page.
*
* @param array $book_link
* A fully loaded book link that is part of the book hierarchy.
*
* @return array
* HTML for the links to the child pages of the current page.
*/
public function childrenLinks(array $book_link) {
$flat = $this->bookManager->bookTreeGetFlat($book_link);
$children = array();
if ($book_link['has_children']) {
// Walk through the array until we find the current page.
do {
$link = array_shift($flat);
} while ($link && ($link['nid'] != $book_link['nid']));
// Continue though the array and collect the links whose parent is this page.
while (($link = array_shift($flat)) && $link['pid'] == $book_link['nid']) {
$data['link'] = $link;
$data['below'] = '';
$children[] = $data;
}
}
if ($children) {
return $this->bookManager->bookTreeOutput($children);
}
return '';
}
}

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<?php
/**
* @file
* Contains \Drupal\book\BookOutlineStorage.
*/
namespace Drupal\book;
use Drupal\Core\Database\Connection;
/**
* Defines a storage class for books outline.
*/
class BookOutlineStorage implements BookOutlineStorageInterface {
/**
* Database Service Object.
*
* @var \Drupal\Core\Database\Connection
*/
protected $connection;
/**
* Constructs a BookOutlineStorage object.
*/
public function __construct(Connection $connection) {
$this->connection = $connection;
}
/**
* {@inheritdoc}
*/
public function getBooks() {
return $this->connection->query("SELECT DISTINCT(bid) FROM {book}")->fetchCol();
}
/**
* {@inheritdoc}
*/
public function hasBooks() {
return (bool) $this->connection
->query('SELECT count(bid) FROM {book}')
->fetchField();
}
/**
* {@inheritdoc}
*/
public function loadMultiple($nids, $access = TRUE) {
$query = $this->connection->select('book', 'b', array('fetch' => \PDO::FETCH_ASSOC));
$query->fields('b');
$query->condition('b.nid', $nids, 'IN');
if ($access) {
$query->addTag('node_access');
$query->addMetaData('base_table', 'book');
}
return $query->execute();
}
/**
* {@inheritdoc}
*/
public function getChildRelativeDepth($book_link, $max_depth) {
$query = $this->connection->select('book');
$query->addField('book', 'depth');
$query->condition('bid', $book_link['bid']);
$query->orderBy('depth', 'DESC');
$query->range(0, 1);
$i = 1;
$p = 'p1';
while ($i <= $max_depth && $book_link[$p]) {
$query->condition($p, $book_link[$p]);
$p = 'p' . ++$i;
}
return $query->execute()->fetchField();
}
/**
* {@inheritdoc}
*/
public function delete($nid) {
return $this->connection->delete('book')
->condition('nid', $nid)
->execute();
}
/**
* {@inheritdoc}
*/
public function loadBookChildren($pid) {
return $this->connection
->query("SELECT * FROM {book} WHERE pid = :pid", array(':pid' => $pid))
->fetchAllAssoc('nid', \PDO::FETCH_ASSOC);
}
/**
* {@inheritdoc}
*/
public function getBookMenuTree($bid, $parameters, $min_depth, $max_depth) {
$query = $this->connection->select('book');
$query->fields('book');
for ($i = 1; $i <= $max_depth; $i++) {
$query->orderBy('p' . $i, 'ASC');
}
$query->condition('bid', $bid);
if (!empty($parameters['expanded'])) {
$query->condition('pid', $parameters['expanded'], 'IN');
}
if ($min_depth != 1) {
$query->condition('depth', $min_depth, '>=');
}
if (isset($parameters['max_depth'])) {
$query->condition('depth', $parameters['max_depth'], '<=');
}
// Add custom query conditions, if any were passed.
if (isset($parameters['conditions'])) {
foreach ($parameters['conditions'] as $column => $value) {
$query->condition($column, $value);
}
}
return $query->execute();
}
/**
* {@inheritdoc}
*/
public function insert($link, $parents) {
return $this->connection
->insert('book')
->fields(array(
'nid' => $link['nid'],
'bid' => $link['bid'],
'pid' => $link['pid'],
'weight' => $link['weight'],
) + $parents
)
->execute();
}
/**
* {@inheritdoc}
*/
public function update($nid, $fields) {
return $this->connection
->update('book')
->fields($fields)
->condition('nid', $nid)
->execute();
}
/**
* {@inheritdoc}
*/
public function updateMovedChildren($bid, $original, $expressions, $shift) {
$query = $this->connection->update('book');
$query->fields(array('bid' => $bid));
foreach ($expressions as $expression) {
$query->expression($expression[0], $expression[1], $expression[2]);
}
$query->expression('depth', 'depth + :depth', array(':depth' => $shift));
$query->condition('bid', $original['bid']);
$p = 'p1';
for ($i = 1; !empty($original[$p]); $p = 'p' . ++$i) {
$query->condition($p, $original[$p]);
}
return $query->execute();
}
/**
* {@inheritdoc}
*/
public function countOriginalLinkChildren($original) {
return $this->connection->select('book', 'b')
->condition('bid', $original['bid'])
->condition('pid', $original['pid'])
->condition('nid', $original['nid'], '<>')
->countQuery()
->execute()->fetchField();
}
/**
* {@inheritdoc}
*/
public function getBookSubtree($link, $max_depth) {
$query = db_select('book', 'b', array('fetch' => \PDO::FETCH_ASSOC));
$query->fields('b');
$query->condition('b.bid', $link['bid']);
for ($i = 1; $i <= $max_depth && $link["p$i"]; ++$i) {
$query->condition("p$i", $link["p$i"]);
}
for ($i = 1; $i <= $max_depth; ++$i) {
$query->orderBy("p$i");
}
return $query->execute();
}
}

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<?php
/**
* @file
* Contains \Drupal\book\BookOutlineStorageInterface.
*/
namespace Drupal\book;
/**
* Defines a common interface for book outline storage classes.
*/
interface BookOutlineStorageInterface {
/**
* Gets books (the highest positioned book links).
*
* @return array
* An array of book IDs.
*/
public function getBooks();
/**
* Checks if there are any books.
*
* @return bool
* TRUE if there are books, FALSE if not.
*/
public function hasBooks();
/**
* Loads books.
*
* Each book entry consists of the following keys:
* - bid: The node ID of the main book.
* - nid: The node ID of the book entry itself.
* - pid: The parent node ID of the book.
* - has_children: A boolean to indicate whether the book has children.
* - weight: The weight of the book entry to order siblings.
* - depth: The depth in the menu hierarchy the entry is placed into.
*
* @param array $nids
* An array of node IDs.
* @param bool $access
* Whether access checking should be taken into account.
*
* @return array
* Array of loaded book items.
*/
public function loadMultiple($nids, $access = TRUE);
/**
* Gets child relative depth.
*
* @param array $book_link
* The book link.
*
* @param int $max_depth
* The maximum supported depth of the book tree.
*
* @return int
* The depth of the searched book.
*/
public function getChildRelativeDepth($book_link, $max_depth);
/**
* Deletes a book entry.
*
* @param int $nid
* Deletes a book entry.
*
* @return mixed
* Number of deleted book entries.
*/
public function delete($nid);
/**
* Loads book's children using it's parent ID.
*
* @param int $pid
* The book's parent ID.
*
* @return array
* Array of loaded book items.
*/
public function loadBookChildren($pid);
/**
* Builds tree data used for the menu tree.
*
* @param int $bid
* The ID of the book that we are building the tree for.
* @param array $parameters
* An associative array of build parameters. For info about individual
* parameters see BookManager::bookTreeBuild().
* @param int $min_depth
* The minimum depth of book links in the resulting tree.
* @param int $max_depth
* The maximum supported depth of the book tree.
*
* @return array
* Array of loaded book links.
*/
public function getBookMenuTree($bid, $parameters, $min_depth, $max_depth);
/**
* Inserts a book link.
*
* @param array $link
* The link array to be inserted in the database.
* @param array $parents
* The array of parent ids for the link to be inserted.
*
* @return mixed
* The last insert ID of the query, if one exists.
*/
public function insert($link, $parents);
/**
* Updates book reference for links that were moved between books.
*
* @param int $nid
* The nid of the book entry to be updated.
* @param array $fields
* The array of fields to be updated.
*
* @return mixed
* The number of rows matched by the update query.
*/
public function update($nid, $fields);
/**
* Update the book ID of the book link that it's being moved.
*
* @param int $bid
* The ID of the book whose children we move.
* @param array $original
* The original parent of the book link.
* @param array $expressions
* Array of expressions to be added to the query.
* @param int $shift
* The difference in depth between the old and the new position of the
* element being moved.
*
* @return mixed
* The number of rows matched by the update query.
*/
public function updateMovedChildren($bid, $original, $expressions, $shift);
/**
* Count the number of original link children.
*
* @param array $original
* The book link array.
*
* @return int
* Number of children.
*/
public function countOriginalLinkChildren($original);
/**
* Get book subtree.
*
* @param array $link
* A fully loaded book link.
* @param int $max_depth
* The maximum supported depth of the book tree.
*
* @return array
* Array of unordered subtree book items.
*/
public function getBookSubtree($link, $max_depth);
}

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<?php
/**
* @file
* Contains \Drupal\book\BookUninstallValidator.
*/
namespace Drupal\book;
use Drupal\Core\Entity\Query\QueryFactory;
use Drupal\Core\Extension\ModuleUninstallValidatorInterface;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\Core\StringTranslation\TranslationInterface;
/**
* Prevents book module from being uninstalled whilst any book nodes exist or
* there are any book outline stored.
*/
class BookUninstallValidator implements ModuleUninstallValidatorInterface {
use StringTranslationTrait;
/**
* The book outline storage.
*
* @var \Drupal\book\BookOutlineStorageInterface
*/
protected $bookOutlineStorage;
/**
* The entity query for node.
*
* @var \Drupal\Core\Entity\Query\QueryInterface
*/
protected $entityQuery;
/**
* Constructs a new BookUninstallValidator.
*
* @param \Drupal\book\BookOutlineStorageInterface $book_outline_storage
* The book outline storage.
* @param \Drupal\Core\Entity\Query\QueryFactory $query_factory
* The entity query factory.
* @param \Drupal\Core\StringTranslation\TranslationInterface $string_translation
* The string translation service.
*/
public function __construct(BookOutlineStorageInterface $book_outline_storage, QueryFactory $query_factory, TranslationInterface $string_translation) {
$this->bookOutlineStorage = $book_outline_storage;
$this->entityQuery = $query_factory->get('node');
$this->stringTranslation = $string_translation;
}
/**
* {@inheritdoc}
*/
public function validate($module) {
$reasons = [];
if ($module == 'book') {
if ($this->hasBookOutlines()) {
$reasons[] = $this->t('To uninstall Book, delete all content that is part of a book');
}
else {
// The book node type is provided by the Book module. Prevent uninstall
// if there are any nodes of that type.
if ($this->hasBookNodes()) {
$reasons[] = $this->t('To uninstall Book, delete all content that has the Book content type');
}
}
}
return $reasons;
}
/**
* Checks if there are any books in an outline.
*
* @return bool
* TRUE if there are books, FALSE if not.
*/
protected function hasBookOutlines() {
return $this->bookOutlineStorage->hasBooks();
}
/**
* Determines if there is any book nodes or not.
*
* @return bool
* TRUE if there are book nodes, FALSE otherwise.
*/
protected function hasBookNodes() {
$nodes = $this->entityQuery
->condition('type', 'book')
->accessCheck(FALSE)
->range(0, 1)
->execute();
return !empty($nodes);
}
}

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<?php
/**
* @file
* Contains \Drupal\book\Cache\BookNavigationCacheContext.
*/
namespace Drupal\book\Cache;
use Drupal\Core\Cache\Context\CacheContextInterface;
use Symfony\Component\DependencyInjection\ContainerAware;
use Symfony\Component\HttpFoundation\RequestStack;
/**
* Defines the book navigation cache context service.
*
* This allows for book navigation location-aware caching. It depends on:
* - whether the current route represents a book node at all
* - and if so, where in the book hierarchy we are
*
* This class is container-aware to avoid initializing the 'book.manager'
* service when it is not necessary.
*/
class BookNavigationCacheContext extends ContainerAware implements CacheContextInterface {
/**
* The request stack.
*
* @var \Symfony\Component\HttpFoundation\RequestStack
*/
protected $requestStack;
/**
* Constructs a new BookNavigationCacheContext service.
*
* @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
* The request stack.
*/
public function __construct(RequestStack $request_stack) {
$this->requestStack = $request_stack;
}
/**
* {@inheritdoc}
*/
public static function getLabel() {
return t("Book navigation");
}
/**
* {@inheritdoc}
*/
public function getContext() {
// Find the current book's ID.
$current_bid = 0;
if ($node = $this->requestStack->getCurrentRequest()->get('node')) {
$current_bid = empty($node->book['bid']) ? 0 : $node->book['bid'];
}
// If we're not looking at a book node, then we're not navigating a book.
if ($current_bid === 0) {
return 'book.none';
}
// If we're looking at a book node, get the trail for that node.
$active_trail = $this->container->get('book.manager')
->getActiveTrailIds($node->book['bid'], $node->book);
return 'book.' . implode('|', $active_trail);
}
}

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<?php
/**
* @file
* Contains \Drupal\book\Controller\BookController.
*/
namespace Drupal\book\Controller;
use Drupal\book\BookExport;
use Drupal\book\BookManagerInterface;
use Drupal\Core\Controller\ControllerBase;
use Drupal\Core\Render\RendererInterface;
use Drupal\Core\Url;
use Drupal\node\Entity\Node;
use Drupal\node\NodeInterface;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
/**
* Controller routines for book routes.
*/
class BookController extends ControllerBase {
/**
* The book manager.
*
* @var \Drupal\book\BookManagerInterface
*/
protected $bookManager;
/**
* The book export service.
*
* @var \Drupal\book\BookExport
*/
protected $bookExport;
/**
* The renderer.
*
* @var \Drupal\Core\Render\RendererInterface
*/
protected $renderer;
/**
* Constructs a BookController object.
*
* @param \Drupal\book\BookManagerInterface $bookManager
* The book manager.
* @param \Drupal\book\BookExport $bookExport
* The book export service.
* @param \Drupal\Core\Render\RendererInterface $renderer
* The renderer.
*/
public function __construct(BookManagerInterface $bookManager, BookExport $bookExport, RendererInterface $renderer) {
$this->bookManager = $bookManager;
$this->bookExport = $bookExport;
$this->renderer = $renderer;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('book.manager'),
$container->get('book.export'),
$container->get('renderer')
);
}
/**
* Returns an administrative overview of all books.
*
* @return array
* A render array representing the administrative page content.
*
*/
public function adminOverview() {
$rows = array();
$headers = array(t('Book'), t('Operations'));
// Add any recognized books to the table list.
foreach ($this->bookManager->getAllBooks() as $book) {
/** @var \Drupal\Core\Url $url */
$url = $book['url'];
if (isset($book['options'])) {
$url->setOptions($book['options']);
}
$row = array(
$this->l($book['title'], $url),
);
$links = array();
$links['edit'] = array(
'title' => t('Edit order and titles'),
'url' => Url::fromRoute('book.admin_edit', ['node' => $book['nid']]),
);
$row[] = array(
'data' => array(
'#type' => 'operations',
'#links' => $links,
),
);
$rows[] = $row;
}
return array(
'#type' => 'table',
'#header' => $headers,
'#rows' => $rows,
'#empty' => t('No books available.'),
);
}
/**
* Prints a listing of all books.
*
* @return array
* A render array representing the listing of all books content.
*/
public function bookRender() {
$book_list = array();
foreach ($this->bookManager->getAllBooks() as $book) {
$book_list[] = $this->l($book['title'], $book['url']);
}
return array(
'#theme' => 'item_list',
'#items' => $book_list,
'#cache' => [
'tags' => \Drupal::entityManager()->getDefinition('node')->getListCacheTags(),
],
);
}
/**
* Generates representations of a book page and its children.
*
* The method delegates the generation of output to helper methods. The method
* name is derived by prepending 'bookExport' to the camelized form of given
* output type. For example, a type of 'html' results in a call to the method
* bookExportHtml().
*
* @param string $type
* A string encoding the type of output requested. The following types are
* currently supported in book module:
* - html: Printer-friendly HTML.
* Other types may be supported in contributed modules.
* @param \Drupal\node\NodeInterface $node
* The node to export.
*
* @return array
* A render array representing the node and its children in the book
* hierarchy in a format determined by the $type parameter.
*
* @throws \Symfony\Component\HttpKernel\Exception\NotFoundHttpException
*/
public function bookExport($type, NodeInterface $node) {
$method = 'bookExport' . Container::camelize($type);
// @todo Convert the custom export functionality to serializer.
if (!method_exists($this->bookExport, $method)) {
drupal_set_message(t('Unknown export format.'));
throw new NotFoundHttpException();
}
$exported_book = $this->bookExport->{$method}($node);
return new Response($this->renderer->renderRoot($exported_book));
}
}

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<?php
/**
* @file
* Contains \Drupal\book\Form\BookAdminEditForm.
*/
namespace Drupal\book\Form;
use Drupal\book\BookManager;
use Drupal\book\BookManagerInterface;
use Drupal\Component\Utility\Crypt;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Element;
use Drupal\Core\Url;
use Drupal\node\NodeInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Provides a form for administering a single book's hierarchy.
*/
class BookAdminEditForm extends FormBase {
/**
* The node storage.
*
* @var \Drupal\Core\Entity\EntityStorageInterface
*/
protected $nodeStorage;
/**
* The book manager.
*
* @var \Drupal\book\BookManagerInterface
*/
protected $bookManager;
/**
* Constructs a new BookAdminEditForm.
*
* @param \Drupal\Core\Entity\EntityStorageInterface $node_storage
* The custom block storage.
* @param \Drupal\book\BookManagerInterface $book_manager
* The book manager.
*/
public function __construct(EntityStorageInterface $node_storage, BookManagerInterface $book_manager) {
$this->nodeStorage = $node_storage;
$this->bookManager = $book_manager;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
$entity_manager = $container->get('entity.manager');
return new static(
$entity_manager->getStorage('node'),
$container->get('book.manager')
);
}
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'book_admin_edit';
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state, NodeInterface $node = NULL) {
$form['#title'] = $node->label();
$form['#node'] = $node;
$this->bookAdminTable($node, $form);
$form['save'] = array(
'#type' => 'submit',
'#value' => $this->t('Save book pages'),
);
return $form;
}
/**
* {@inheritdoc}
*/
public function validateForm(array &$form, FormStateInterface $form_state) {
if ($form_state->getValue('tree_hash') != $form_state->getValue('tree_current_hash')) {
$form_state->setErrorByName('', $this->t('This book has been modified by another user, the changes could not be saved.'));
}
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
// Save elements in the same order as defined in post rather than the form.
// This ensures parents are updated before their children, preventing orphans.
$user_input = $form_state->getUserInput();
if (isset($user_input['table'])) {
$order = array_flip(array_keys($user_input['table']));
$form['table'] = array_merge($order, $form['table']);
foreach (Element::children($form['table']) as $key) {
if ($form['table'][$key]['#item']) {
$row = $form['table'][$key];
$values = $form_state->getValue(array('table', $key));
// Update menu item if moved.
if ($row['parent']['pid']['#default_value'] != $values['pid'] || $row['weight']['#default_value'] != $values['weight']) {
$link = $this->bookManager->loadBookLink($values['nid'], FALSE);
$link['weight'] = $values['weight'];
$link['pid'] = $values['pid'];
$this->bookManager->saveBookLink($link, FALSE);
}
// Update the title if changed.
if ($row['title']['#default_value'] != $values['title']) {
$node = $this->nodeStorage->load($values['nid']);
$node->revision_log = $this->t('Title changed from %original to %current.', array('%original' => $node->label(), '%current' => $values['title']));
$node->title = $values['title'];
$node->book['link_title'] = $values['title'];
$node->setNewRevision();
$node->save();
$this->logger('content')->notice('book: updated %title.', array('%title' => $node->label(), 'link' => $node->link($this->t('View'))));
}
}
}
}
drupal_set_message($this->t('Updated book %title.', array('%title' => $form['#node']->label())));
}
/**
* Builds the table portion of the form for the book administration page.
*
* @param \Drupal\node\NodeInterface $node
* The node of the top-level page in the book.
* @param array $form
* The form that is being modified, passed by reference.
*
* @see self::buildForm()
*/
protected function bookAdminTable(NodeInterface $node, array &$form) {
$form['table'] = array(
'#type' => 'table',
'#header' => [
$this->t('Title'),
$this->t('Weight'),
$this->t('Parent'),
$this->t('Operations'),
],
'#empty' => $this->t('No book content available.'),
'#tabledrag' => [
[
'action' => 'match',
'relationship' => 'parent',
'group' => 'book-pid',
'subgroup' => 'book-pid',
'source' => 'book-nid',
'hidden' => TRUE,
'limit' => BookManager::BOOK_MAX_DEPTH - 2,
],
[
'action' => 'order',
'relationship' => 'sibling',
'group' => 'book-weight',
],
],
);
$tree = $this->bookManager->bookSubtreeData($node->book);
// Do not include the book item itself.
$tree = array_shift($tree);
if ($tree['below']) {
$hash = Crypt::hashBase64(serialize($tree['below']));
// Store the hash value as a hidden form element so that we can detect
// if another user changed the book hierarchy.
$form['tree_hash'] = array(
'#type' => 'hidden',
'#default_value' => $hash,
);
$form['tree_current_hash'] = array(
'#type' => 'value',
'#value' => $hash,
);
$this->bookAdminTableTree($tree['below'], $form['table']);
}
}
/**
* Helps build the main table in the book administration page form.
*
* @param array $tree
* A subtree of the book menu hierarchy.
* @param array $form
* The form that is being modified, passed by reference.
*
* @see self::buildForm()
*/
protected function bookAdminTableTree(array $tree, array &$form) {
// The delta must be big enough to give each node a distinct value.
$count = count($tree);
$delta = ($count < 30) ? 15 : intval($count / 2) + 1;
$access = \Drupal::currentUser()->hasPermission('administer nodes');
$destination = $this->getDestinationArray();
foreach ($tree as $data) {
$nid = $data['link']['nid'];
$id = 'book-admin-' . $nid;
$form[$id]['#item'] = $data['link'];
$form[$id]['#nid'] = $nid;
$form[$id]['#attributes']['class'][] = 'draggable';
$form[$id]['#weight'] = $data['link']['weight'];
if (isset($data['link']['depth']) && $data['link']['depth'] > 2) {
$indentation = [
'#theme' => 'indentation',
'#size' => $data['link']['depth'] - 2,
];
}
$form[$id]['title'] = [
'#prefix' => !empty($indentation) ? drupal_render($indentation) : '',
'#type' => 'textfield',
'#default_value' => $data['link']['title'],
'#maxlength' => 255,
'#size' => 40,
];
$form[$id]['weight'] = [
'#type' => 'weight',
'#default_value' => $data['link']['weight'],
'#delta' => max($delta, abs($data['link']['weight'])),
'#title' => $this->t('Weight for @title', ['@title' => $data['link']['title']]),
'#title_display' => 'invisible',
'#attributes' => [
'class' => ['book-weight'],
],
];
$form[$id]['parent']['nid'] = [
'#parents' => ['table', $id, 'nid'],
'#type' => 'hidden',
'#value' => $nid,
'#attributes' => [
'class' => ['book-nid'],
],
];
$form[$id]['parent']['pid'] = [
'#parents' => ['table', $id, 'pid'],
'#type' => 'hidden',
'#default_value' => $data['link']['pid'],
'#attributes' => [
'class' => ['book-pid'],
],
];
$form[$id]['parent']['bid'] = [
'#parents' => ['table', $id, 'bid'],
'#type' => 'hidden',
'#default_value' => $data['link']['bid'],
'#attributes' => [
'class' => ['book-bid'],
],
];
$form[$id]['operations'] = [
'#type' => 'operations',
];
$form[$id]['operations']['#links']['view'] = [
'title' => $this->t('View'),
'url' => new Url('entity.node.canonical', ['node' => $nid]),
];
if ($access) {
$form[$id]['operations']['#links']['edit'] = [
'title' => $this->t('Edit'),
'url' => new Url('entity.node.edit_form', ['node' => $nid]),
'query' => $destination,
];
$form[$id]['operations']['#links']['delete'] = [
'title' => $this->t('Delete'),
'url' => new Url('entity.node.delete_form', ['node' => $nid]),
'query' => $destination,
];
}
if ($data['below']) {
$this->bookAdminTableTree($data['below'], $form);
}
}
}
}

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<?php
/**
* @file
* Contains \Drupal\book\Form\BookOutlineForm.
*/
namespace Drupal\book\Form;
use Drupal\book\BookManagerInterface;
use Drupal\Core\Entity\ContentEntityForm;
use Drupal\Core\Entity\EntityManagerInterface;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Displays the book outline form.
*/
class BookOutlineForm extends ContentEntityForm {
/**
* The book being displayed.
*
* @var \Drupal\node\NodeInterface
*/
protected $entity;
/**
* BookManager service.
*
* @var \Drupal\book\BookManagerInterface
*/
protected $bookManager;
/**
* Constructs a BookOutlineForm object.
*
* @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
* The entity manager.
* @param \Drupal\book\BookManagerInterface $book_manager
* The BookManager service.
*/
public function __construct(EntityManagerInterface $entity_manager, BookManagerInterface $book_manager) {
parent::__construct($entity_manager);
$this->bookManager = $book_manager;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('entity.manager'),
$container->get('book.manager')
);
}
/**
* {@inheritdoc}
*/
public function getBaseFormId() {
return NULL;
}
/**
* {@inheritdoc}
*/
public function form(array $form, FormStateInterface $form_state) {
$form['#title'] = $this->entity->label();
if (!isset($this->entity->book)) {
// The node is not part of any book yet - set default options.
$this->entity->book = $this->bookManager->getLinkDefaults($this->entity->id());
}
else {
$this->entity->book['original_bid'] = $this->entity->book['bid'];
}
// Find the depth limit for the parent select.
if (!isset($this->entity->book['parent_depth_limit'])) {
$this->entity->book['parent_depth_limit'] = $this->bookManager->getParentDepthLimit($this->entity->book);
}
$form = $this->bookManager->addFormElements($form, $form_state, $this->entity, $this->currentUser(), FALSE);
return $form;
}
/**
* {@inheritdoc}
*/
protected function actions(array $form, FormStateInterface $form_state) {
$actions = parent::actions($form, $form_state);
$actions['submit']['#value'] = $this->entity->book['original_bid'] ? $this->t('Update book outline') : $this->t('Add to book outline');
$actions['delete']['#value'] = $this->t('Remove from book outline');
$actions['delete']['#access'] = $this->bookManager->checkNodeIsRemovable($this->entity);
return $actions;
}
/**
* {@inheritdoc}
*/
public function save(array $form, FormStateInterface $form_state) {
$form_state->setRedirect(
'entity.node.canonical',
array('node' => $this->entity->id())
);
$book_link = $form_state->getValue('book');
if (!$book_link['bid']) {
drupal_set_message($this->t('No changes were made'));
return;
}
$this->entity->book = $book_link;
if ($this->bookManager->updateOutline($this->entity)) {
if (isset($this->entity->book['parent_mismatch']) && $this->entity->book['parent_mismatch']) {
// This will usually only happen when JS is disabled.
drupal_set_message($this->t('The post has been added to the selected book. You may now position it relative to other pages.'));
$form_state->setRedirectUrl($this->entity->urlInfo('book-outline-form'));
}
else {
drupal_set_message($this->t('The book outline has been updated.'));
}
}
else {
drupal_set_message($this->t('There was an error adding the post to the book.'), 'error');
}
}
/**
* {@inheritdoc}
*/
public function delete(array $form, FormStateInterface $form_state) {
$form_state->setRedirectUrl($this->entity->urlInfo('book-remove-form'));
}
}

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<?php
/**
* @file
* Contains \Drupal\book\Form\BookRemoveForm.
*/
namespace Drupal\book\Form;
use Drupal\book\BookManagerInterface;
use Drupal\Core\Form\ConfirmFormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Drupal\node\NodeInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Remove form for book module.
*/
class BookRemoveForm extends ConfirmFormBase {
/**
* The book manager.
*
* @var \Drupal\book\BookManagerInterface
*/
protected $bookManager;
/**
* The node representing the book.
*
* @var \Drupal\node\NodeInterface
*/
protected $node;
/**
* Constructs a BookRemoveForm object.
*
* @param \Drupal\book\BookManagerInterface $book_manager
* The book manager.
*/
public function __construct(BookManagerInterface $book_manager) {
$this->bookManager = $book_manager;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('book.manager')
);
}
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'book_remove_form';
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state, NodeInterface $node = NULL) {
$this->node = $node;
return parent::buildForm($form, $form_state);
}
/**
* {@inheritdoc}
*/
public function getDescription() {
$title = array('%title' => $this->node->label());
if ($this->node->book['has_children']) {
return $this->t('%title has associated child pages, which will be relocated automatically to maintain their connection to the book. To recreate the hierarchy (as it was before removing this page), %title may be added again using the Outline tab, and each of its former child pages will need to be relocated manually.', $title);
}
else {
return $this->t('%title may be added to hierarchy again using the Outline tab.', $title);
}
}
/**
* {@inheritdoc}
*/
public function getConfirmText() {
return $this->t('Remove');
}
/**
* {@inheritdoc}
*/
public function getQuestion() {
return $this->t('Are you sure you want to remove %title from the book hierarchy?', array('%title' => $this->node->label()));
}
/**
* {@inheritdoc}
*/
public function getCancelUrl() {
return $this->node->urlInfo();
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
if ($this->bookManager->checkNodeIsRemovable($this->node)) {
$this->bookManager->deleteFromBook($this->node->id());
drupal_set_message($this->t('The post has been removed from the book.'));
}
$form_state->setRedirectUrl($this->getCancelUrl());
}
}

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<?php
/**
* @file
* Contains \Drupal\book\Form\BookSettingsForm.
*/
namespace Drupal\book\Form;
use Drupal\Core\Form\ConfigFormBase;
use Drupal\Core\Form\FormStateInterface;
/**
* Configure book settings for this site.
*/
class BookSettingsForm extends ConfigFormBase {
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'book_admin_settings';
}
/**
* {@inheritdoc}
*/
protected function getEditableConfigNames() {
return ['book.settings'];
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
$types = node_type_get_names();
$config = $this->config('book.settings');
$form['book_allowed_types'] = array(
'#type' => 'checkboxes',
'#title' => $this->t('Content types allowed in book outlines'),
'#default_value' => $config->get('allowed_types'),
'#options' => $types,
'#description' => $this->t('Users with the %outline-perm permission can add all content types.', array('%outline-perm' => $this->t('Administer book outlines'))),
'#required' => TRUE,
);
$form['book_child_type'] = array(
'#type' => 'radios',
'#title' => $this->t('Content type for the <em>Add child page</em> link'),
'#default_value' => $config->get('child_type'),
'#options' => $types,
'#required' => TRUE,
);
$form['array_filter'] = array('#type' => 'value', '#value' => TRUE);
return parent::buildForm($form, $form_state);
}
/**
* {@inheritdoc}
*/
public function validateForm(array &$form, FormStateInterface $form_state) {
$child_type = $form_state->getValue('book_child_type');
if ($form_state->isValueEmpty(array('book_allowed_types', $child_type))) {
$form_state->setErrorByName('book_child_type', $this->t('The content type for the %add-child link must be one of those selected as an allowed book outline type.', array('%add-child' => $this->t('Add child page'))));
}
parent::validateForm($form, $form_state);
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
$allowed_types = array_filter($form_state->getValue('book_allowed_types'));
// We need to save the allowed types in an array ordered by machine_name so
// that we can save them in the correct order if node type changes.
// @see book_node_type_update().
sort($allowed_types);
$this->config('book.settings')
// Remove unchecked types.
->set('allowed_types', $allowed_types)
->set('child_type', $form_state->getValue('book_child_type'))
->save();
parent::submitForm($form, $form_state);
}
}

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<?php
/**
* @file
* Contains \Drupal\book\Plugin\Block\BookNavigationBlock.
*/
namespace Drupal\book\Plugin\Block;
use Drupal\Core\Block\BlockBase;
use Drupal\book\BookManagerInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\RequestStack;
use Drupal\Core\Entity\EntityStorageInterface;
/**
* Provides a 'Book navigation' block.
*
* @Block(
* id = "book_navigation",
* admin_label = @Translation("Book navigation"),
* category = @Translation("Menus")
* )
*/
class BookNavigationBlock extends BlockBase implements ContainerFactoryPluginInterface {
/**
* The request object.
*
* @var \Symfony\Component\HttpFoundation\RequestStack
*/
protected $requestStack;
/**
* The book manager.
*
* @var \Drupal\book\BookManagerInterface
*/
protected $bookManager;
/**
* The node storage.
*
* @var \Drupal\Core\Entity\EntityStorageInterface
*/
protected $nodeStorage;
/**
* Constructs a new BookNavigationBlock instance.
*
* @param array $configuration
* A configuration array containing information about the plugin instance.
* @param string $plugin_id
* The plugin_id for the plugin instance.
* @param mixed $plugin_definition
* The plugin implementation definition.
* @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
* The request stack object.
* @param \Drupal\book\BookManagerInterface $book_manager
* The book manager.
* @param \Drupal\Core\Entity\EntityStorageInterface $node_storage
* The node storage.
*/
public function __construct(array $configuration, $plugin_id, $plugin_definition, RequestStack $request_stack, BookManagerInterface $book_manager, EntityStorageInterface $node_storage) {
parent::__construct($configuration, $plugin_id, $plugin_definition);
$this->requestStack = $request_stack;
$this->bookManager = $book_manager;
$this->nodeStorage = $node_storage;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static(
$configuration,
$plugin_id,
$plugin_definition,
$container->get('request_stack'),
$container->get('book.manager'),
$container->get('entity.manager')->getStorage('node')
);
}
/**
* {@inheritdoc}
*/
public function defaultConfiguration() {
return array(
'block_mode' => "all pages",
);
}
/**
* {@inheritdoc}
*/
function blockForm($form, FormStateInterface $form_state) {
$options = array(
'all pages' => $this->t('Show block on all pages'),
'book pages' => $this->t('Show block only on book pages'),
);
$form['book_block_mode'] = array(
'#type' => 'radios',
'#title' => $this->t('Book navigation block display'),
'#options' => $options,
'#default_value' => $this->configuration['block_mode'],
'#description' => $this->t("If <em>Show block on all pages</em> is selected, the block will contain the automatically generated menus for all of the site's books. If <em>Show block only on book pages</em> is selected, the block will contain only the one menu corresponding to the current page's book. In this case, if the current page is not in a book, no block will be displayed. The <em>Page specific visibility settings</em> or other visibility settings can be used in addition to selectively display this block."),
);
return $form;
}
/**
* {@inheritdoc}
*/
public function blockSubmit($form, FormStateInterface $form_state) {
$this->configuration['block_mode'] = $form_state->getValue('book_block_mode');
}
/**
* {@inheritdoc}
*/
public function build() {
$current_bid = 0;
if ($node = $this->requestStack->getCurrentRequest()->get('node')) {
$current_bid = empty($node->book['bid']) ? 0 : $node->book['bid'];
}
if ($this->configuration['block_mode'] == 'all pages') {
$book_menus = array();
$pseudo_tree = array(0 => array('below' => FALSE));
foreach ($this->bookManager->getAllBooks() as $book_id => $book) {
if ($book['bid'] == $current_bid) {
// If the current page is a node associated with a book, the menu
// needs to be retrieved.
$data = $this->bookManager->bookTreeAllData($node->book['bid'], $node->book);
$book_menus[$book_id] = $this->bookManager->bookTreeOutput($data);
}
else {
// Since we know we will only display a link to the top node, there
// is no reason to run an additional menu tree query for each book.
$book['in_active_trail'] = FALSE;
// Check whether user can access the book link.
$book_node = $this->nodeStorage->load($book['nid']);
$book['access'] = $book_node->access('view');
$pseudo_tree[0]['link'] = $book;
$book_menus[$book_id] = $this->bookManager->bookTreeOutput($pseudo_tree);
}
$book_menus[$book_id] += array(
'#book_title' => $book['title'],
);
}
if ($book_menus) {
return array(
'#theme' => 'book_all_books_block',
) + $book_menus;
}
}
elseif ($current_bid) {
// Only display this block when the user is browsing a book.
$query = \Drupal::entityQuery('node');
$nid = $query->condition('nid', $node->book['bid'], '=')->execute();
// Only show the block if the user has view access for the top-level node.
if ($nid) {
$tree = $this->bookManager->bookTreeAllData($node->book['bid'], $node->book);
// There should only be one element at the top level.
$data = array_shift($tree);
$below = $this->bookManager->bookTreeOutput($data['below']);
if (!empty($below)) {
return $below;
}
}
}
return array();
}
/**
* {@inheritdoc}
*/
public function getCacheContexts() {
// The "Book navigation" block must be cached per role and book navigation
// context.
return [
'user.roles',
'route.book_navigation',
];
}
/**
* {@inheritdoc}
*
* @todo Make cacheable in https://www.drupal.org/node/2483181
*/
public function getCacheMaxAge() {
return 0;
}
}

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<?php
/**
* @file
* Contains \Drupal\book\Tests\BookTest.
*/
namespace Drupal\book\Tests;
use Drupal\Component\Utility\SafeMarkup;
use Drupal\Core\Entity\EntityInterface;
use Drupal\simpletest\WebTestBase;
use Drupal\user\RoleInterface;
/**
* Create a book, add pages, and test book interface.
*
* @group book
*/
class BookTest extends WebTestBase {
/**
* Modules to install.
*
* @var array
*/
public static $modules = array('book', 'block', 'node_access_test');
/**
* A book node.
*
* @var object
*/
protected $book;
/**
* A user with permission to create and edit books.
*
* @var object
*/
protected $bookAuthor;
/**
* A user with permission to view a book and access printer-friendly version.
*
* @var object
*/
protected $webUser;
/**
* A user with permission to create and edit books and to administer blocks.
*
* @var object
*/
protected $adminUser;
/**
* A user without the 'node test view' permission.
*
* @var \Drupal\user\UserInterface
*/
protected $webUserWithoutNodeAccess;
/**
* {@inheritdoc}
*/
protected function setUp() {
parent::setUp();
$this->drupalPlaceBlock('system_breadcrumb_block');
// node_access_test requires a node_access_rebuild().
node_access_rebuild();
// Create users.
$this->bookAuthor = $this->drupalCreateUser(array('create new books', 'create book content', 'edit own book content', 'add content to books'));
$this->webUser = $this->drupalCreateUser(array('access printer-friendly version', 'node test view'));
$this->webUserWithoutNodeAccess = $this->drupalCreateUser(array('access printer-friendly version'));
$this->adminUser = $this->drupalCreateUser(array('create new books', 'create book content', 'edit own book content', 'add content to books', 'administer blocks', 'administer permissions', 'administer book outlines', 'node test view', 'administer content types', 'administer site configuration'));
}
/**
* Creates a new book with a page hierarchy.
*/
function createBook() {
// Create new book.
$this->drupalLogin($this->bookAuthor);
$this->book = $this->createBookNode('new');
$book = $this->book;
/*
* Add page hierarchy to book.
* Book
* |- Node 0
* |- Node 1
* |- Node 2
* |- Node 3
* |- Node 4
*/
$nodes = array();
$nodes[] = $this->createBookNode($book->id()); // Node 0.
$nodes[] = $this->createBookNode($book->id(), $nodes[0]->book['nid']); // Node 1.
$nodes[] = $this->createBookNode($book->id(), $nodes[0]->book['nid']); // Node 2.
$nodes[] = $this->createBookNode($book->id()); // Node 3.
$nodes[] = $this->createBookNode($book->id()); // Node 4.
$this->drupalLogout();
return $nodes;
}
/**
* Tests saving the book outline on an empty book.
*/
function testEmptyBook() {
// Create a new empty book.
$this->drupalLogin($this->bookAuthor);
$book = $this->createBookNode('new');
$this->drupalLogout();
// Log in as a user with access to the book outline and save the form.
$this->drupalLogin($this->adminUser);
$this->drupalPostForm('admin/structure/book/' . $book->id(), array(), t('Save book pages'));
$this->assertText(t('Updated book @book.', array('@book' => $book->label())));
}
/**
* Tests book functionality through node interfaces.
*/
function testBook() {
// Create new book.
$nodes = $this->createBook();
$book = $this->book;
$this->drupalLogin($this->webUser);
// Check that book pages display along with the correct outlines and
// previous/next links.
$this->checkBookNode($book, array($nodes[0], $nodes[3], $nodes[4]), FALSE, FALSE, $nodes[0], array());
$this->checkBookNode($nodes[0], array($nodes[1], $nodes[2]), $book, $book, $nodes[1], array($book));
$this->checkBookNode($nodes[1], NULL, $nodes[0], $nodes[0], $nodes[2], array($book, $nodes[0]));
$this->checkBookNode($nodes[2], NULL, $nodes[1], $nodes[0], $nodes[3], array($book, $nodes[0]));
$this->checkBookNode($nodes[3], NULL, $nodes[2], $book, $nodes[4], array($book));
$this->checkBookNode($nodes[4], NULL, $nodes[3], $book, FALSE, array($book));
$this->drupalLogout();
$this->drupalLogin($this->bookAuthor);
// Check the presence of expected cache tags.
$this->drupalGet('node/add/book');
$this->assertCacheTag('config:book.settings');
/*
* Add Node 5 under Node 3.
* Book
* |- Node 0
* |- Node 1
* |- Node 2
* |- Node 3
* |- Node 5
* |- Node 4
*/
$nodes[] = $this->createBookNode($book->id(), $nodes[3]->book['nid']); // Node 5.
$this->drupalLogout();
$this->drupalLogin($this->webUser);
// Verify the new outline - make sure we don't get stale cached data.
$this->checkBookNode($nodes[3], array($nodes[5]), $nodes[2], $book, $nodes[5], array($book));
$this->checkBookNode($nodes[4], NULL, $nodes[5], $book, FALSE, array($book));
$this->drupalLogout();
// Create a second book, and move an existing book page into it.
$this->drupalLogin($this->bookAuthor);
$other_book = $this->createBookNode('new');
$node = $this->createBookNode($book->id());
$edit = array('book[bid]' => $other_book->id());
$this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save'));
$this->drupalLogout();
$this->drupalLogin($this->webUser);
// Check that the nodes in the second book are displayed correctly.
// First we must set $this->book to the second book, so that the
// correct regex will be generated for testing the outline.
$this->book = $other_book;
$this->checkBookNode($other_book, array($node), FALSE, FALSE, $node, array());
$this->checkBookNode($node, NULL, $other_book, $other_book, FALSE, array($other_book));
// Test that we can save a book programatically.
$this->drupalLogin($this->bookAuthor);
$book = $this->createBookNode('new');
$book->save();
}
/**
* Checks the outline of sub-pages; previous, up, and next.
*
* Also checks the printer friendly version of the outline.
*
* @param \Drupal\Core\Entity\EntityInterface $node
* Node to check.
* @param $nodes
* Nodes that should be in outline.
* @param $previous
* (optional) Previous link node. Defaults to FALSE.
* @param $up
* (optional) Up link node. Defaults to FALSE.
* @param $next
* (optional) Next link node. Defaults to FALSE.
* @param array $breadcrumb
* The nodes that should be displayed in the breadcrumb.
*/
function checkBookNode(EntityInterface $node, $nodes, $previous = FALSE, $up = FALSE, $next = FALSE, array $breadcrumb) {
// $number does not use drupal_static as it should not be reset
// since it uniquely identifies each call to checkBookNode().
static $number = 0;
$this->drupalGet('node/' . $node->id());
// Check outline structure.
if ($nodes !== NULL) {
$this->assertPattern($this->generateOutlinePattern($nodes), format_string('Node @number outline confirmed.', array('@number' => $number)));
}
else {
$this->pass(format_string('Node %number does not have outline.', array('%number' => $number)));
}
// Check previous, up, and next links.
if ($previous) {
/** @var \Drupal\Core\Url $url */
$url = $previous->urlInfo();
$url->setOptions(array('attributes' => array('rel' => array('prev'), 'title' => t('Go to previous page'))));
$text = SafeMarkup::format('<b></b> @label', array('@label' => $previous->label()));
$this->assertRaw(\Drupal::l($text, $url), 'Previous page link found.');
}
if ($up) {
/** @var \Drupal\Core\Url $url */
$url = $up->urlInfo();
$url->setOptions(array('attributes' => array('title' => t('Go to parent page'))));
$this->assertRaw(\Drupal::l('Up', $url), 'Up page link found.');
}
if ($next) {
/** @var \Drupal\Core\Url $url */
$url = $next->urlInfo();
$url->setOptions(array('attributes' => array('rel' => array('next'), 'title' => t('Go to next page'))));
$text = SafeMarkup::format('@label <b></b>', array('@label' => $next->label()));
$this->assertRaw(\Drupal::l($text, $url), 'Next page link found.');
}
// Compute the expected breadcrumb.
$expected_breadcrumb = array();
$expected_breadcrumb[] = \Drupal::url('<front>');
foreach ($breadcrumb as $a_node) {
$expected_breadcrumb[] = $a_node->url();
}
// Fetch links in the current breadcrumb.
$links = $this->xpath('//nav[@class="breadcrumb"]/ol/li/a');
$got_breadcrumb = array();
foreach ($links as $link) {
$got_breadcrumb[] = (string) $link['href'];
}
// Compare expected and got breadcrumbs.
$this->assertIdentical($expected_breadcrumb, $got_breadcrumb, 'The breadcrumb is correctly displayed on the page.');
// Check printer friendly version.
$this->drupalGet('book/export/html/' . $node->id());
$this->assertText($node->label(), 'Printer friendly title found.');
$this->assertRaw($node->body->processed, 'Printer friendly body found.');
$number++;
}
/**
* Creates a regular expression to check for the sub-nodes in the outline.
*
* @param array $nodes
* An array of nodes to check in outline.
*
* @return string
* A regular expression that locates sub-nodes of the outline.
*/
function generateOutlinePattern($nodes) {
$outline = '';
foreach ($nodes as $node) {
$outline .= '(node\/' . $node->id() . ')(.*?)(' . $node->label() . ')(.*?)';
}
return '/<nav id="book-navigation-' . $this->book->id() . '"(.*?)<ul(.*?)' . $outline . '<\/ul>/s';
}
/**
* Creates a book node.
*
* @param int|string $book_nid
* A book node ID or set to 'new' to create a new book.
* @param int|null $parent
* (optional) Parent book reference ID. Defaults to NULL.
*/
function createBookNode($book_nid, $parent = NULL) {
// $number does not use drupal_static as it should not be reset
// since it uniquely identifies each call to createBookNode().
static $number = 0; // Used to ensure that when sorted nodes stay in same order.
$edit = array();
$edit['title[0][value]'] = $number . ' - SimpleTest test node ' . $this->randomMachineName(10);
$edit['body[0][value]'] = 'SimpleTest test body ' . $this->randomMachineName(32) . ' ' . $this->randomMachineName(32);
$edit['book[bid]'] = $book_nid;
if ($parent !== NULL) {
$this->drupalPostForm('node/add/book', $edit, t('Change book (update list of parents)'));
$edit['book[pid]'] = $parent;
$this->drupalPostForm(NULL, $edit, t('Save'));
// Make sure the parent was flagged as having children.
$parent_node = \Drupal::entityManager()->getStorage('node')->loadUnchanged($parent);
$this->assertFalse(empty($parent_node->book['has_children']), 'Parent node is marked as having children');
}
else {
$this->drupalPostForm('node/add/book', $edit, t('Save'));
}
// Check to make sure the book node was created.
$node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
$this->assertNotNull(($node === FALSE ? NULL : $node), 'Book node found in database.');
$number++;
return $node;
}
/**
* Tests book export ("printer-friendly version") functionality.
*/
function testBookExport() {
// Create a book.
$nodes = $this->createBook();
// Login as web user and view printer-friendly version.
$this->drupalLogin($this->webUser);
$this->drupalGet('node/' . $this->book->id());
$this->clickLink(t('Printer-friendly version'));
// Make sure each part of the book is there.
foreach ($nodes as $node) {
$this->assertText($node->label(), 'Node title found in printer friendly version.');
$this->assertRaw($node->body->processed, 'Node body found in printer friendly version.');
}
// Make sure we can't export an unsupported format.
$this->drupalGet('book/export/foobar/' . $this->book->id());
$this->assertResponse('404', 'Unsupported export format returned "not found".');
// Make sure we get a 404 on a not existing book node.
$this->drupalGet('book/export/html/123');
$this->assertResponse('404', 'Not existing book node returned "not found".');
// Make sure an anonymous user cannot view printer-friendly version.
$this->drupalLogout();
// Load the book and verify there is no printer-friendly version link.
$this->drupalGet('node/' . $this->book->id());
$this->assertNoLink(t('Printer-friendly version'), 'Anonymous user is not shown link to printer-friendly version.');
// Try getting the URL directly, and verify it fails.
$this->drupalGet('book/export/html/' . $this->book->id());
$this->assertResponse('403', 'Anonymous user properly forbidden.');
// Now grant anonymous users permission to view the printer-friendly
// version and verify that node access restrictions still prevent them from
// seeing it.
user_role_grant_permissions(RoleInterface::ANONYMOUS_ID, array('access printer-friendly version'));
$this->drupalGet('book/export/html/' . $this->book->id());
$this->assertResponse('403', 'Anonymous user properly forbidden from seeing the printer-friendly version when denied by node access.');
}
/**
* Tests the functionality of the book navigation block.
*/
function testBookNavigationBlock() {
$this->drupalLogin($this->adminUser);
// Enable the block.
$block = $this->drupalPlaceBlock('book_navigation');
// Give anonymous users the permission 'node test view'.
$edit = array();
$edit[RoleInterface::ANONYMOUS_ID . '[node test view]'] = TRUE;
$this->drupalPostForm('admin/people/permissions/' . RoleInterface::ANONYMOUS_ID, $edit, t('Save permissions'));
$this->assertText(t('The changes have been saved.'), "Permission 'node test view' successfully assigned to anonymous users.");
// Test correct display of the block.
$nodes = $this->createBook();
$this->drupalGet('<front>');
$this->assertText($block->label(), 'Book navigation block is displayed.');
$this->assertText($this->book->label(), format_string('Link to book root (@title) is displayed.', array('@title' => $nodes[0]->label())));
$this->assertNoText($nodes[0]->label(), 'No links to individual book pages are displayed.');
}
/**
* Tests the book navigation block when an access module is installed.
*/
function testNavigationBlockOnAccessModuleInstalled() {
$this->drupalLogin($this->adminUser);
$block = $this->drupalPlaceBlock('book_navigation', array('block_mode' => 'book pages'));
// Give anonymous users the permission 'node test view'.
$edit = array();
$edit[RoleInterface::ANONYMOUS_ID . '[node test view]'] = TRUE;
$this->drupalPostForm('admin/people/permissions/' . RoleInterface::ANONYMOUS_ID, $edit, t('Save permissions'));
$this->assertText(t('The changes have been saved.'), "Permission 'node test view' successfully assigned to anonymous users.");
// Create a book.
$this->createBook();
// Test correct display of the block to registered users.
$this->drupalLogin($this->webUser);
$this->drupalGet('node/' . $this->book->id());
$this->assertText($block->label(), 'Book navigation block is displayed to registered users.');
$this->drupalLogout();
// Test correct display of the block to anonymous users.
$this->drupalGet('node/' . $this->book->id());
$this->assertText($block->label(), 'Book navigation block is displayed to anonymous users.');
// Test the 'book pages' block_mode setting.
$this->drupalGet('<front>');
$this->assertNoText($block->label(), 'Book navigation block is not shown on non-book pages.');
}
/**
* Tests the access for deleting top-level book nodes.
*/
function testBookDelete() {
$node_storage = $this->container->get('entity.manager')->getStorage('node');
$nodes = $this->createBook();
$this->drupalLogin($this->adminUser);
$edit = array();
// Test access to delete top-level and child book nodes.
$this->drupalGet('node/' . $this->book->id() . '/outline/remove');
$this->assertResponse('403', 'Deleting top-level book node properly forbidden.');
$this->drupalPostForm('node/' . $nodes[4]->id() . '/outline/remove', $edit, t('Remove'));
$node_storage->resetCache(array($nodes[4]->id()));
$node4 = $node_storage->load($nodes[4]->id());
$this->assertTrue(empty($node4->book), 'Deleting child book node properly allowed.');
// Delete all child book nodes and retest top-level node deletion.
foreach ($nodes as $node) {
$nids[] = $node->id();
}
entity_delete_multiple('node', $nids);
$this->drupalPostForm('node/' . $this->book->id() . '/outline/remove', $edit, t('Remove'));
$node_storage->resetCache(array($this->book->id()));
$node = $node_storage->load($this->book->id());
$this->assertTrue(empty($node->book), 'Deleting childless top-level book node properly allowed.');
}
/*
* Tests node type changing machine name when type is a book allowed type.
*/
function testBookNodeTypeChange() {
$this->drupalLogin($this->adminUser);
// Change the name, machine name and description.
$edit = array(
'name' => 'Bar',
'type' => 'bar',
);
$this->drupalPostForm('admin/structure/types/manage/book', $edit, t('Save content type'));
// Ensure that the config book.settings:allowed_types has been updated with
// the new machine and the old one has been removed.
$this->assertTrue(book_type_is_allowed('bar'), 'Config book.settings:allowed_types contains the updated node type machine name "bar".');
$this->assertFalse(book_type_is_allowed('book'), 'Config book.settings:allowed_types does not contain the old node type machine name "book".');
$edit = array(
'name' => 'Basic page',
'title_label' => 'Title for basic page',
'type' => 'page',
);
$this->drupalPostForm('admin/structure/types/add', $edit, t('Save content type'));
// Add page to the allowed node types.
$edit = array(
'book_allowed_types[page]' => 'page',
'book_allowed_types[bar]' => 'bar',
);
$this->drupalPostForm('admin/structure/book/settings', $edit, t('Save configuration'));
$this->assertTrue(book_type_is_allowed('bar'), 'Config book.settings:allowed_types contains the bar node type.');
$this->assertTrue(book_type_is_allowed('page'), 'Config book.settings:allowed_types contains the page node type.');
// Test the order of the book.settings::allowed_types configuration is as
// expected. The point of this test is to prove that after changing a node
// type going to admin/structure/book/settings and pressing save without
// changing anything should not alter the book.settings configuration. The
// order will be:
// @code
// array(
// 'bar',
// 'page',
// );
// @endcode
$current_config = $this->config('book.settings')->get();
$this->drupalPostForm('admin/structure/book/settings', array(), t('Save configuration'));
$this->assertIdentical($current_config, $this->config('book.settings')->get());
// Change the name, machine name and description.
$edit = array(
'name' => 'Zebra book',
'type' => 'zebra',
);
$this->drupalPostForm('admin/structure/types/manage/bar', $edit, t('Save content type'));
$this->assertTrue(book_type_is_allowed('zebra'), 'Config book.settings:allowed_types contains the zebra node type.');
$this->assertTrue(book_type_is_allowed('page'), 'Config book.settings:allowed_types contains the page node type.');
// Test the order of the book.settings::allowed_types configuration is as
// expected. The order should be:
// @code
// array(
// 'page',
// 'zebra',
// );
// @endcode
$current_config = $this->config('book.settings')->get();
$this->drupalPostForm('admin/structure/book/settings', array(), t('Save configuration'));
$this->assertIdentical($current_config, $this->config('book.settings')->get());
$edit = array(
'name' => 'Animal book',
'type' => 'zebra',
);
$this->drupalPostForm('admin/structure/types/manage/zebra', $edit, t('Save content type'));
// Test the order of the book.settings::allowed_types configuration is as
// expected. The order should be:
// @code
// array(
// 'page',
// 'zebra',
// );
// @endcode
$current_config = $this->config('book.settings')->get();
$this->drupalPostForm('admin/structure/book/settings', array(), t('Save configuration'));
$this->assertIdentical($current_config, $this->config('book.settings')->get());
// Ensure that after all the node type changes book.settings:child_type has
// the expected value.
$this->assertEqual($this->config('book.settings')->get('child_type'), 'zebra');
}
/**
* Tests re-ordering of books.
*/
public function testBookOrdering() {
// Create new book.
$this->createBook();
$book = $this->book;
$this->drupalLogin($this->adminUser);
$node1 = $this->createBookNode($book->id());
$node2 = $this->createBookNode($book->id());
$pid = $node1->book['nid'];
// Head to admin screen and attempt to re-order.
$this->drupalGet('admin/structure/book/' . $book->id());
$edit = array(
"table[book-admin-{$node1->id()}][weight]" => 1,
"table[book-admin-{$node2->id()}][weight]" => 2,
// Put node 2 under node 1.
"table[book-admin-{$node2->id()}][pid]" => $pid,
);
$this->drupalPostForm(NULL, $edit, t('Save book pages'));
// Verify weight was updated.
$this->assertFieldByName("table[book-admin-{$node1->id()}][weight]", 1);
$this->assertFieldByName("table[book-admin-{$node2->id()}][weight]", 2);
$this->assertFieldByName("table[book-admin-{$node2->id()}][pid]", $pid);
}
/**
* Tests outline of a book.
*/
public function testBookOutline() {
$this->drupalLogin($this->bookAuthor);
// Create new node not yet a book.
$empty_book = $this->drupalCreateNode(array('type' => 'book'));
$this->drupalGet('node/' . $empty_book->id() . '/outline');
$this->assertNoLink(t('Book outline'), 'Book Author is not allowed to outline');
$this->drupalLogin($this->adminUser);
$this->drupalGet('node/' . $empty_book->id() . '/outline');
$this->assertRaw(t('Book outline'));
$this->assertOptionSelected('edit-book-bid', 0, 'Node does not belong to a book');
$edit = array();
$edit['book[bid]'] = '1';
$this->drupalPostForm('node/' . $empty_book->id() . '/outline', $edit, t('Add to book outline'));
$node = \Drupal::entityManager()->getStorage('node')->load($empty_book->id());
// Test the book array.
$this->assertEqual($node->book['nid'], $empty_book->id());
$this->assertEqual($node->book['bid'], $empty_book->id());
$this->assertEqual($node->book['depth'], 1);
$this->assertEqual($node->book['p1'], $empty_book->id());
$this->assertEqual($node->book['pid'], '0');
// Create new book.
$this->drupalLogin($this->bookAuthor);
$book = $this->createBookNode('new');
$this->drupalLogin($this->adminUser);
$this->drupalGet('node/' . $book->id() . '/outline');
$this->assertRaw(t('Book outline'));
// Create a new node and set the book after the node was created.
$node = $this->drupalCreateNode(array('type' => 'book'));
$edit = array();
$edit['book[bid]'] = $node->id();
$this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save'));
$node = \Drupal::entityManager()->getStorage('node')->load($node->id());
// Test the book array.
$this->assertEqual($node->book['nid'], $node->id());
$this->assertEqual($node->book['bid'], $node->id());
$this->assertEqual($node->book['depth'], 1);
$this->assertEqual($node->book['p1'], $node->id());
$this->assertEqual($node->book['pid'], '0');
// Test the form itself.
$this->drupalGet('node/' . $node->id() . '/edit');
$this->assertOptionSelected('edit-book-bid', $node->id());
}
/**
* Tests that saveBookLink() returns something.
*/
public function testSaveBookLink() {
$book_manager = \Drupal::service('book.manager');
// Mock a link for a new book.
$link = array('nid' => 1, 'has_children' => 0, 'original_bid' => 0, 'parent_depth_limit' => 8, 'pid' => 0, 'weight' => 0, 'bid' => 1);
$new = TRUE;
// Save the link.
$return = $book_manager->saveBookLink($link, $new);
// Add the link defaults to $link so we have something to compare to the return from saveBookLink().
$link += $book_manager->getLinkDefaults($link['nid']);
// Test the return from saveBookLink.
$this->assertEqual($return, $link);
}
/**
* Tests the listing of all books.
*/
public function testBookListing() {
// Create a new book.
$this->createBook();
// Must be a user with 'node test view' permission since node_access_test is installed.
$this->drupalLogin($this->webUser);
// Load the book page and assert the created book title is displayed.
$this->drupalGet('book');
$this->assertText($this->book->label(), 'The book title is displayed on the book listing page.');
}
/**
* Tests the administrative listing of all books.
*/
public function testAdminBookListing() {
// Create a new book.
$this->createBook();
// Load the book page and assert the created book title is displayed.
$this->drupalLogin($this->adminUser);
$this->drupalGet('admin/structure/book');
$this->assertText($this->book->label(), 'The book title is displayed on the administrative book listing page.');
}
/**
* Tests the administrative listing of all book pages in a book.
*/
public function testAdminBookNodeListing() {
// Create a new book.
$this->createBook();
$this->drupalLogin($this->adminUser);
// Load the book page list and assert the created book title is displayed
// and action links are shown on list items.
$this->drupalGet('admin/structure/book/' . $this->book->id());
$this->assertText($this->book->label(), 'The book title is displayed on the administrative book listing page.');
$elements = $this->xpath('//table//ul[@class="dropbutton"]/li/a');
$this->assertEqual((string) $elements[0], 'View', 'View link is found from the list.');
}
/**
* Ensure the loaded book in hook_node_load() does not depend on the user.
*/
public function testHookNodeLoadAccess() {
\Drupal::service('module_installer')->install(['node_access_test']);
// Ensure that the loaded book in hook_node_load() does NOT depend on the
// current user.
$this->drupalLogin($this->bookAuthor);
$this->book = $this->createBookNode('new');
// Reset any internal static caching.
$node_storage = \Drupal::entityManager()->getStorage('node');
$node_storage->resetCache();
// Login as user without access to the book node, so no 'node test view'
// permission.
// @see node_access_test_node_grants().
$this->drupalLogin($this->webUserWithoutNodeAccess);
$book_node = $node_storage->load($this->book->id());
$this->assertTrue(!empty($book_node->book));
$this->assertEqual($book_node->book['bid'], $this->book->id());
// Reset the internal cache to retrigger the hook_node_load() call.
$node_storage->resetCache();
$this->drupalLogin($this->webUser);
$book_node = $node_storage->load($this->book->id());
$this->assertTrue(!empty($book_node->book));
$this->assertEqual($book_node->book['bid'], $this->book->id());
}
}

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<?php
/**
* @file
* Contains \Drupal\book\Tests\BookUninstallTest.
*/
namespace Drupal\book\Tests;
use Drupal\node\Entity\Node;
use Drupal\node\Entity\NodeType;
use Drupal\simpletest\KernelTestBase;
/**
* Tests that the Book module cannot be uninstalled if books exist.
*
* @group book
*/
class BookUninstallTest extends KernelTestBase {
/**
* Modules to enable.
*
* @var array
*/
public static $modules = array('system', 'user', 'field', 'filter', 'text', 'entity_reference', 'node', 'book');
/**
* {@inheritdoc}
*/
protected function setUp() {
parent::setUp();
$this->installEntitySchema('user');
$this->installEntitySchema('node');
$this->installSchema('book', array('book'));
$this->installSchema('node', array('node_access'));
$this->installConfig(array('node', 'book', 'field'));
// For uninstall to work.
$this->installSchema('user', array('users_data'));
}
/**
* Tests the book_system_info_alter() method.
*/
public function testBookUninstall() {
// No nodes exist.
$validation_reasons = \Drupal::service('module_installer')->validateUninstall(['book']);
$this->assertEqual([], $validation_reasons, 'The book module is not required.');
$content_type = NodeType::create(array(
'type' => $this->randomMachineName(),
'name' => $this->randomString(),
));
$content_type->save();
$book_config = $this->config('book.settings');
$allowed_types = $book_config->get('allowed_types');
$allowed_types[] = $content_type->id();
$book_config->set('allowed_types', $allowed_types)->save();
$node = Node::create(array('type' => $content_type->id()));
$node->book['bid'] = 'new';
$node->save();
// One node in a book but not of type book.
$validation_reasons = \Drupal::service('module_installer')->validateUninstall(['book']);
$this->assertEqual(['To uninstall Book, delete all content that is part of a book'], $validation_reasons['book']);
$book_node = Node::create(array('type' => 'book'));
$book_node->book['bid'] = FALSE;
$book_node->save();
// Two nodes, one in a book but not of type book and one book node (which is
// not in a book).
$validation_reasons = \Drupal::service('module_installer')->validateUninstall(['book']);
$this->assertEqual(['To uninstall Book, delete all content that is part of a book'], $validation_reasons['book']);
$node->delete();
// One node of type book but not actually part of a book.
$validation_reasons = \Drupal::service('module_installer')->validateUninstall(['book']);
$this->assertEqual(['To uninstall Book, delete all content that has the Book content type'], $validation_reasons['book']);
$book_node->delete();
// No nodes exist therefore the book module is not required.
$module_data = _system_rebuild_module_data();
$this->assertFalse(isset($module_data['book']->info['required']), 'The book module is not required.');
$node = Node::create(array('type' => $content_type->id()));
$node->save();
// One node exists but is not part of a book therefore the book module is
// not required.
$validation_reasons = \Drupal::service('module_installer')->validateUninstall(['book']);
$this->assertEqual([], $validation_reasons, 'The book module is not required.');
// Uninstall the Book module and check the node type is deleted.
\Drupal::service('module_installer')->uninstall(array('book'));
$this->assertNull(NodeType::load('book'), "The book node type does not exist.");
}
}