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-rw-r--r--mod/pages/lib/pages.php152
1 files changed, 152 insertions, 0 deletions
diff --git a/mod/pages/lib/pages.php b/mod/pages/lib/pages.php
new file mode 100644
index 000000000..7f90d53d8
--- /dev/null
+++ b/mod/pages/lib/pages.php
@@ -0,0 +1,152 @@
+<?php
+/**
+ * Pages function library
+ */
+
+/**
+ * Prepare the add/edit form variables
+ *
+ * @param ElggObject $page
+ * @return array
+ */
+function pages_prepare_form_vars($page = null, $parent_guid = 0, $revision = null) {
+
+ // input names => defaults
+ $values = array(
+ 'title' => '',
+ 'description' => '',
+ 'access_id' => ACCESS_DEFAULT,
+ 'write_access_id' => ACCESS_DEFAULT,
+ 'tags' => '',
+ 'container_guid' => elgg_get_page_owner_guid(),
+ 'guid' => null,
+ 'entity' => $page,
+ 'parent_guid' => $parent_guid,
+ );
+
+ if ($page) {
+ foreach (array_keys($values) as $field) {
+ if (isset($page->$field)) {
+ $values[$field] = $page->$field;
+ }
+ }
+ }
+
+ if (elgg_is_sticky_form('page')) {
+ $sticky_values = elgg_get_sticky_values('page');
+ foreach ($sticky_values as $key => $value) {
+ $values[$key] = $value;
+ }
+ }
+
+ elgg_clear_sticky_form('page');
+
+ // load the revision annotation if requested
+ if ($revision instanceof ElggAnnotation && $revision->entity_guid == $page->getGUID()) {
+ $values['description'] = $revision->value;
+ }
+
+ return $values;
+}
+
+/**
+ * Recurses the page tree and adds the breadcrumbs for all ancestors
+ *
+ * @param ElggObject $page Page entity
+ */
+function pages_prepare_parent_breadcrumbs($page) {
+ if ($page && $page->parent_guid) {
+ $parents = array();
+ $parent = get_entity($page->parent_guid);
+ while ($parent) {
+ array_push($parents, $parent);
+ $parent = get_entity($parent->parent_guid);
+ }
+ while ($parents) {
+ $parent = array_pop($parents);
+ elgg_push_breadcrumb($parent->title, $parent->getURL());
+ }
+ }
+}
+
+/**
+ * Produce the navigation tree
+ *
+ * @param ElggEntity $container Container entity for the pages
+ */
+function pages_get_navigation_tree($container) {
+ if (!$container) {
+ return;
+ }
+
+ $top_pages = elgg_get_entities(array(
+ 'type' => 'object',
+ 'subtype' => 'page_top',
+ 'container_guid' => $container->getGUID(),
+ 'limit' => 0,
+ ));
+
+ if (!$top_pages) {
+ return;
+ }
+
+ $tree = array();
+ $depths = array();
+
+ foreach ($top_pages as $page) {
+ $tree[] = array(
+ 'guid' => $page->getGUID(),
+ 'title' => $page->title,
+ 'url' => $page->getURL(),
+ 'depth' => 0,
+ );
+ $depths[$page->guid] = 0;
+
+ $stack = array();
+ array_push($stack, $page);
+ while (count($stack) > 0) {
+ $parent = array_pop($stack);
+ $children = elgg_get_entities_from_metadata(array(
+ 'type' => 'object',
+ 'subtype' => 'page',
+ 'metadata_name' => 'parent_guid',
+ 'metadata_value' => $parent->getGUID(),
+ 'limit' => 0,
+ ));
+
+ if ($children) {
+ foreach ($children as $child) {
+ $tree[] = array(
+ 'guid' => $child->getGUID(),
+ 'title' => $child->title,
+ 'url' => $child->getURL(),
+ 'parent_guid' => $parent->getGUID(),
+ 'depth' => $depths[$parent->guid] + 1,
+ );
+ $depths[$child->guid] = $depths[$parent->guid] + 1;
+ array_push($stack, $child);
+ }
+ }
+ }
+ }
+ return $tree;
+}
+
+/**
+ * Register the navigation menu
+ *
+ * @param ElggEntity $container Container entity for the pages
+ */
+function pages_register_navigation_tree($container) {
+ $pages = pages_get_navigation_tree($container);
+ if ($pages) {
+ foreach ($pages as $page) {
+ elgg_register_menu_item('pages_nav', array(
+ 'name' => $page['guid'],
+ 'text' => $page['title'],
+ 'href' => $page['url'],
+ 'parent_name' => $page['parent_guid'],
+ ));
+ }
+ }
+}