Ajax likes. Woot!

hooks/register/menu/entity.php

@@ -0,0 +1,40 @@
+<?php
+
+$object = $params['entity'];
+
+if (elgg_is_logged_in() && !elgg_in_context('widgets') && elgg_is_active_plugin('likes')) {
+	$menu = new EvanMenu($return);
+
+	if ($object->canAnnotate(0, 'likes')) {
+		$hasLiked = elgg_annotation_exists($object->guid, 'likes');
+
+		// Always register both. That makes it super easy to toggle with javascript
+		$menu->registerItem('like', array(
+			'href' => elgg_add_action_tokens_to_url("/action/likes/add?guid={$object->guid}"),
+			'text' => elgg_view_icon('thumbs-up'),
+			'title' => elgg_echo('likes:likethis'),
+			'item_class' => $hasLiked ? 'hidden' : '',
+		));
+		$menu->registerItem('unlike', array(
+			'href' => elgg_add_action_tokens_to_url("/action/likes/delete?guid={$object->guid}"),
+			'text' => elgg_view_icon('thumbs-up-alt'),
+			'title' => elgg_echo('likes:remove'),
+			'item_class' => $hasLiked ? '' : 'hidden',
+		));
+	}
+
+	$count = elgg_view('likes/count', array('entity' => $object));
+
+	if ($count) {
+		$menu->registerItem('likes_count', array(
+			'href' => false,
+			'priority' => 1001,
+			'text' => $count,
+			'title' => elgg_echo('likes:see'),
+		));
+	}
+
+	return $menu->getItems();
+}
+
+return NULL;

hooks/register/menu/river.php

@@ -0,0 +1,54 @@
+<?php
+
+// The river item
+$item = $params['item'];
+
+// only like group creation #3958
+if ($item->type == "group" && $item->view != "river/group/create") {
+	return $return;
+}
+
+// don't like users #4116
+if ($item->type == "user") {
+	return $return;
+}
+
+$object = $item->getObjectEntity();
+
+if (elgg_is_logged_in() && !elgg_in_context('widgets') && elgg_is_active_plugin('likes')) {
+	$menu = new EvanMenu($return);
+
+	if ($object->canAnnotate(0, 'likes')) {
+		$hasLiked = elgg_annotation_exists($object->guid, 'likes');
+
+		// Always register both. That makes it super easy to toggle with javascript
+		$menu->registerItem('like', array(
+			'href' => elgg_add_action_tokens_to_url("/action/likes/add?guid={$object->guid}"),
+			'text' => elgg_view_icon('thumbs-up'),
+			'title' => elgg_echo('likes:likethis'),
+			'item_class' => $hasLiked ? 'hidden' : '',
+		));
+		$menu->registerItem('unlike', array(
+			'href' => elgg_add_action_tokens_to_url("/action/likes/delete?guid={$object->guid}"),
+			'text' => elgg_view_icon('thumbs-up-alt'),
+			'title' => elgg_echo('likes:remove'),
+			'item_class' => $hasLiked ? '' : 'hidden',
+		));
+	}
+
+	$count = elgg_view('likes/count', array('entity' => $object));
+
+	if ($count) {
+		$menu->registerItem('likes_count', array(
+			'href' => false,
+			'priority' => 1001,
+			'text' => $count,
+			'title' => elgg_echo('likes:see'),
+		));
+	}
+
+	return $menu->getItems();
+}
+
+
+return NULL;

manifest.xml

@@ -11,4 +11,8 @@
 		<type>elgg_release</type>
 		<version>1.8.3</version>
 	</requires>
+    <requires>
+        <type>plugin</type>
+        <plugin>evan</plugin>
+    </requires>
 </plugin_manifest>

start.php

@@ -7,12 +7,21 @@ function ajaxify_init() {
 
 	elgg_register_action('entity/delete', dirname(__FILE__) . "/actions/entities/delete.php");
 
-	if (elgg_in_context('admin')) {
-		elgg_extend_view('page/elements/foot', 'requirejs/config/admin');
-	}
+	elgg_extend_view('page/elements/foot', 'requirejs/config/admin');
 
 	elgg_extend_view('css/admin', 'css/admin/ajaxify');
+
+	elgg_unregister_plugin_hook_handler('register', 'menu:river', 'likes_river_menu_setup');
+	elgg_unregister_plugin_hook_handler('register', 'menu:entity', 'likes_entity_menu_setup');
+
 
+    elgg_register_simplecache_view('js/elgg/ajaxify/likes');
+    elgg_register_js('elgg/ajaxify/likes', elgg_get_simplecache_url('js', 'elgg/ajaxify/likes'), 'footer');
+
+    if (elgg_is_active_plugin('likes')) {
+        elgg_load_js('elgg/ajaxify/likes');
+    }
+
 	if (elgg_is_admin_logged_in()) {
 		$views = array(
 			'admin/statistics/server',

views/default/js/elgg/ajaxify/likes.php

@@ -0,0 +1,50 @@
+(function($) {
+    function showLikeHideUnlike($menu) {
+        $menu.find('.elgg-menu-item-like').removeClass('hidden');
+        $menu.find('.elgg-menu-item-unlike').addClass('hidden');
+    }
+
+    function showUnlikeHideLike($menu) {
+        $menu.find('.elgg-menu-item-unlike').removeClass('hidden');
+        $menu.find('.elgg-menu-item-like').addClass('hidden');
+    }
+
+    // Handles clicking the like button.
+    $('.elgg-menu-item-like a').live('click', function() {
+        var $menu = $(this).closest('.elgg-menu');
+
+        // Be optimistic about success
+        showUnlikeHideLike($menu);
+
+        // Send the ajax request
+        elgg.action($(this).attr('href'), {
+            error: function() {
+                // Something went wrong, so undo the optimistic changes
+                showLikeHideUnlike($menu);
+            }
+        }); 
+
+        // Don't want to actually click the link
+        return false;
+    });
+
+    // Handles clicking the unlike button
+    $('.elgg-menu-item-unlike a').live('click', function() {
+        var $menu = $(this).closest('.elgg-menu');
+
+        // Be optimistic about success
+        showLikeHideUnlike($menu);
+
+        // Send the ajax request
+        console.log($menu);
+        elgg.action($(this).attr('href'), {
+            error: function() {
+                // Something went wrong, so undo the optimistic changes
+                showUnlikeHideLike($menu);
+            }
+        }); 
+
+        // Don't want to actually click the link
+        return false;
+    });
+})(jQuery);

views/default/requirejs/config/admin.php

@@ -1,3 +1,9 @@
+<?php
+if (!elgg_in_context('admin')) {
+    return true;
+}
+?>
+
 <script>
 /**
  * Defines some modules to be reused so they can be refactored transparently later on.