From 6547efb9ae89c1477930c69ac2dbe73350673a66 Mon Sep 17 00:00:00 2001
From: Jeff Tilson <jrtilson@gmail.com>
Date: Mon, 13 Jun 2011 14:38:46 -0400
Subject: Added 'remove from group' link to the user hover menu (only appears
 when the page owner is a group)

---
 mod/groups/actions/groups/membership/remove.php | 31 ++++++++++++++++++
 mod/groups/languages/en.php                     |  3 ++
 mod/groups/start.php                            | 42 +++++++++++++++++++++++++
 3 files changed, 76 insertions(+)
 create mode 100644 mod/groups/actions/groups/membership/remove.php

diff --git a/mod/groups/actions/groups/membership/remove.php b/mod/groups/actions/groups/membership/remove.php
new file mode 100644
index 000000000..6f0698371
--- /dev/null
+++ b/mod/groups/actions/groups/membership/remove.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ * Remove a user from a group
+ *
+ * @package ElggGroups
+ */
+
+$user_guid = get_input('user_guid');
+$group_guid = get_input('group_guid');
+
+$user = get_entity($user_guid);
+$group = get_entity($group_guid);
+
+elgg_set_page_owner_guid($group->guid);
+
+if (($user instanceof ElggUser) && ($group instanceof ElggGroup) && $group->canEdit()) {
+	// Don't allow removeing group owner
+	if ($group->getOwnerGUID() != $user->getGUID()) {
+		if ($group->leave($user)) {
+			system_message(elgg_echo("groups:removed"));
+		} else {
+			register_error(elgg_echo("groups:cantremove"));
+		}
+	} else {
+		register_error(elgg_echo("groups:cantremove"));
+	}
+} else {
+	register_error(elgg_echo("groups:cantremove"));
+}
+
+forward(REFERER);
diff --git a/mod/groups/languages/en.php b/mod/groups/languages/en.php
index 63a6df3a9..a4d9863ca 100644
--- a/mod/groups/languages/en.php
+++ b/mod/groups/languages/en.php
@@ -166,6 +166,9 @@ $english = array(
 	'groups:notitle' => 'Groups must have a title',
 	'groups:cantjoin' => 'Can not join group',
 	'groups:cantleave' => 'Could not leave group',
+	'groups:removeuser' => 'Remove from group',
+	'groups:cantremove' => 'Cannot remove user from group',
+	'groups:removed' => 'User successfully removed from group',
 	'groups:addedtogroup' => 'Successfully added the user to the group',
 	'groups:joinrequestnotmade' => 'Could not request to join group',
 	'groups:joinrequestmade' => 'Requested to join group',
diff --git a/mod/groups/start.php b/mod/groups/start.php
index 73bdd08a9..9a375e89d 100644
--- a/mod/groups/start.php
+++ b/mod/groups/start.php
@@ -44,6 +44,7 @@ function groups_init() {
 	elgg_register_action("groups/invite", "$action_base/invite.php");
 	elgg_register_action("groups/join", "$action_base/join.php");
 	elgg_register_action("groups/leave", "$action_base/leave.php");
+	elgg_register_action("groups/remove", "$action_base/remove.php");
 	elgg_register_action("groups/killrequest", "$action_base/delete_request.php");
 	elgg_register_action("groups/killinvitation", "$action_base/delete_invite.php");
 	elgg_register_action("groups/addtogroup", "$action_base/add.php");
@@ -60,6 +61,9 @@ function groups_init() {
 
 	// group entity menu
 	elgg_register_plugin_hook_handler('register', 'menu:entity', 'groups_entity_menu_setup');
+	
+	// group user hover menu	
+	elgg_register_plugin_hook_handler('register', 'menu:user_hover', 'groups_user_entity_menu_setup');
 
 	//extend some views
 	elgg_extend_view('css/elgg', 'groups/css');
@@ -366,6 +370,44 @@ function groups_entity_menu_setup($hook, $type, $return, $params) {
 	return $return;
 }
 
+/**
+ * Add a remove user link to user hover menu when the page owner is a group
+ */
+function groups_user_entity_menu_setup($hook, $type, $return, $params) {
+	if (elgg_is_logged_in()) {
+		$group = elgg_get_page_owner_entity();
+		
+		// Check for valid group
+		if (!elgg_instanceof($group, 'group')) {
+			return $return;
+		}
+	
+		$entity = $params['entity'];
+		
+		// Make sure we have a user and that user is a member of the group
+		if (!elgg_instanceof($entity, 'user') || !$group->isMember($entity)) {
+			return $return;
+		}
+
+		// Add remove link if we can edit the group, and if we're not trying to remove the group owner
+		if ($group->canEdit() && $group->getOwnerGUID() != $entity->guid) {
+			$remove = elgg_view('output/confirmlink', array(
+				'href' => "action/groups/remove?user_guid={$entity->guid}&group_guid={$group->guid}",
+				'text' => elgg_echo('groups:removeuser'),
+			));
+
+			$options = array(
+				'name' => 'removeuser',
+				'text' => $remove,
+				'priority' => 999,
+			);
+			$return[] = ElggMenuItem::factory($options);
+		} 
+	}
+
+	return $return;
+}
+
 /**
  * Groups created so create an access list for it
  */
-- 
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