+
+ /*
+ * Returns an array based on this Activity Object suitable for
+ * encoding as JSON.
+ *
+ * @return array $object the activity object array
+ */
+
+ function asArray()
+ {
+ $object = array();
+
+ if (Event::handle('StartActivityObjectOutputJson', array($this, &$object))) {
+ // XXX: attachedObjects are added by Activity
+
+ // displayName
+ $object['displayName'] = $this->title;
+
+ // TODO: downstreamDuplicates
+
+ // embedCode (used for video)
+
+ // id
+ //
+ // XXX: Should we use URL here? or a crazy tag URI?
+ $object['id'] = $this->id;
+
+ if ($this->type == ActivityObject::PERSON
+ || $this->type == ActivityObject::GROUP) {
+
+ // XXX: Not sure what the best avatar is to use for the
+ // author's "image". For now, I'm using the large size.
+
+ $avatarLarge = null;
+ $avatarMediaLinks = array();
+
+ foreach ($this->avatarLinks as $a) {
+
+ // Make a MediaLink for every other Avatar
+ $avatar = new ActivityStreamsMediaLink(
+ $a->url,
+ $a->width,
+ $a->height,
+ $a->type,
+ 'avatar'
+ );
+
+ // Find the big avatar to use as the "image"
+ if ($a->height == AVATAR_PROFILE_SIZE) {
+ $imgLink = $avatar;
+ }
+
+ $avatarMediaLinks[] = $avatar->asArray();
+ }
+
+ $object['avatarLinks'] = $avatarMediaLinks; // extension
+
+ // image
+ $object['image'] = $imgLink->asArray();
+ }
+
+ // objectType
+ //
+ // We can probably use the whole schema URL here but probably the
+ // relative simple name is easier to parse
+ // @fixme this breaks extension URIs
+ $object['type'] = substr($this->type, strrpos($this->type, '/') + 1);
+
+ // summary
+ $object['summary'] = $this->summary;
+
+ // TODO: upstreamDuplicates
+
+ // url (XXX: need to put the right thing here...)
+ $object['url'] = $this->id;
+
+ /* Extensions */
+ // @fixme these may collide with XML extensions
+ // @fixme multiple tags of same name will overwrite each other
+ // @fixme text content from XML extensions will be lost
+ foreach ($this->extra as $e) {
+ list($objectName, $props, $txt) = $e;
+ $object[$objectName] = $props;
+ }
+
+ // GeoJSON
+
+ if (!empty($this->geopoint)) {
+
+ list($lat, $long) = explode(' ', $this->geopoint);
+
+ $object['geopoint'] = array(
+ 'type' => 'Point',
+ 'coordinates' => array($lat, $long)
+ );
+ }
+
+ if (!empty($this->poco)) {
+ $object['contact'] = $this->poco->asArray();
+ }
+ Event::handle('EndActivityObjectOutputJson', array($this, &$object));
+ }
+ return array_filter($object);
+ }