abstract class MicroAppPlugin extends Plugin
{
+ /**
+ * Returns a localized string which represents this micro-app,
+ * to be shown to users selecting what type of post to make.
+ * This is paired with the key string in $this->tag().
+ *
+ * All micro-app classes must override this method.
+ *
+ * @return string
+ */
abstract function appTitle();
+
+ /**
+ * Returns a key string which represents this micro-app in HTML
+ * ids etc, as when offering selection of what type of post to make.
+ * This is paired with the user-visible localizable $this->appTitle().
+ *
+ * All micro-app classes must override this method.
+ */
abstract function tag();
+
+ /**
+ * Return a list of ActivityStreams object type URIs
+ * which this micro-app handles. Default implementations
+ * of the base class will use this list to check if a
+ * given ActivityStreams object belongs to us, via
+ * $this->isMyNotice() or $this->isMyActivity.
+ *
+ * All micro-app classes must override this method.
+ *
+ * @fixme can we confirm that these types are the same
+ * for Atom and JSON streams? Any limitations or issues?
+ *
+ * @return array of strings
+ */
abstract function types();
- abstract function saveNoticeFromActivity($activity, $actor, $options);
+
+ /**
+ * Given a parsed ActivityStreams activity, your plugin
+ * gets to figure out how to actually save it into a notice
+ * and any additional data structures you require.
+ *
+ * This will handle things received via AtomPub, OStatus
+ * (PuSH and Salmon transports), or ActivityStreams-based
+ * backup/restore of account data.
+ *
+ * You should be able to accept as input the output from your
+ * $this->activityObjectFromNotice(). Where applicable, try to
+ * use existing ActivityStreams structures and object types,
+ * and be liberal in accepting input from what might be other
+ * compatible apps.
+ *
+ * All micro-app classes must override this method.
+ *
+ * @fixme are there any standard options?
+ *
+ * @param Activity $activity
+ * @param Profile $actor
+ * @param array $options=array()
+ *
+ * @return Notice the resulting notice
+ */
+ abstract function saveNoticeFromActivity($activity, $actor, $options=array());
+
+ /**
+ * Given an existing Notice object, your plugin gets to
+ * figure out how to arrange it into an ActivityStreams
+ * object.
+ *
+ * This will be how your specialized notice gets output in
+ * Atom feeds and JSON-based ActivityStreams output, including
+ * account backup/restore and OStatus (PuSH and Salmon transports).
+ *
+ * You should be able to round-trip data from this format back
+ * through $this->saveNoticeFromActivity(). Where applicable, try
+ * to use existing ActivityStreams structures and object types,
+ * and consider interop with other compatible apps.
+ *
+ * All micro-app classes must override this method.
+ *
+ * @fixme this outputs an ActivityObject, not an Activity. Any compat issues?
+ *
+ * @param Notice $notice
+ *
+ * @return ActivityObject
+ */
abstract function activityObjectFromNotice($notice);
+
+ /**
+ * Custom HTML output for your special notice; called when a
+ * matching notice turns up in a NoticeListItem.
+ *
+ * All micro-app classes must override this method.
+ *
+ * @param Notice $notice
+ * @param HTMLOutputter $out
+ *
+ * @fixme WARNING WARNING WARNING base plugin stuff below tries to close
+ * a div that this function opens in the BookmarkPlugin child class.
+ * This is probably wrong.
+ */
abstract function showNotice($notice, $out);
+
+ /**
+ * When building the primary notice form, we'll fetch also some
+ * alternate forms for specialized types -- that's you!
+ *
+ * Return a custom Widget or Form object for the given output
+ * object, and it'll be included in the HTML output. Beware that
+ * your form may be initially hidden.
+ *
+ * All micro-app classes must override this method.
+ *
+ * @param HTMLOutputter $out
+ * @return Widget
+ */
abstract function entryForm($out);
+
+ /**
+ * When a notice is deleted, you'll be called here for a chance
+ * to clean up any related resources.
+ *
+ * All micro-app classes must override this method.
+ *
+ * @param Notice $notice
+ */
abstract function deleteRelated($notice);
+ /**
+ * Check if a given notice object should be handled by this micro-app
+ * plugin.
+ *
+ * The default implementation checks against the activity type list
+ * returned by $this->types(). You can override this method to expand
+ * your checks.
+ *
+ * @param Notice $notice
+ * @return boolean
+ */
function isMyNotice($notice) {
$types = $this->types();
return in_array($notice->object_type, $types);
}
+ /**
+ * Check if a given ActivityStreams activity should be handled by this
+ * micro-app plugin.
+ *
+ * The default implementation checks against the activity type list
+ * returned by $this->types(), and requires that exactly one matching
+ * object be present. You can override this method to expand
+ * your checks or to compare the activity's verb, etc.
+ *
+ * @param Activity $activity
+ * @return boolean
+ */
function isMyActivity($activity) {
$types = $this->types();
return (count($activity->objects) == 1 &&
in_array($activity->objects[0]->type, $types));
}
+ /**
+ * Called when generating Atom XML ActivityStreams output from an
+ * ActivityObject belonging to this plugin. Gives the plugin
+ * a chance to add custom output.
+ *
+ * Note that you can only add output of additional XML elements,
+ * not change existing stuff here.
+ *
+ * If output is already handled by the base Activity classes,
+ * you can leave this base implementation as a no-op.
+ *
+ * @param ActivityObject $obj
+ * @param XMLOutputter $out to add elements at end of object
+ */
+ function activityObjectOutputAtom(ActivityObject $obj, XMLOutputter $out)
+ {
+ // default is a no-op
+ }
+
+ /**
+ * Called when generating JSON ActivityStreams output from an
+ * ActivityObject belonging to this plugin. Gives the plugin
+ * a chance to add custom output.
+ *
+ * Modify the array contents to your heart's content, and it'll
+ * all get serialized out as JSON.
+ *
+ * If output is already handled by the base Activity classes,
+ * you can leave this base implementation as a no-op.
+ *
+ * @param ActivityObject $obj
+ * @param array &$out JSON-targeted array which can be modified
+ */
+ public function activityObjectOutputJson(ActivityObject $obj, array &$out)
+ {
+ // default is a no-op
+ }
+
/**
* When a notice is deleted, delete the related objects
+ * by calling the overridable $this->deleteRelated().
*
* @param Notice $notice Notice being deleted
*
* @param NoticeListItem $nli The list item being shown.
*
* @return boolean hook value
+ *
+ * @fixme WARNING WARNING WARNING this closes a 'div' that is implicitly opened in BookmarkPlugin's showNotice implementation
*/
function onStartShowNoticeItem($nli)
'url' => $object->link,
'is_local' => Notice::REMOTE_OMB,
'source' => 'ostatus');
-
- $this->saveNoticeFromActivity($activity, $actor);
+
+ // $actor is an ostatus_profile
+ $this->saveNoticeFromActivity($activity, $actor->localProfile(), $options);
return false;
}
'is_local' => Notice::REMOTE_OMB,
'source' => 'ostatus');
- $this->saveNoticeFromActivity($activity, $actor, $options);
+ // $actor is an ostatus_profile
+ $this->saveNoticeFromActivity($activity, $actor->localProfile(), $options);
return false;
}
$options = array('source' => 'atompub');
+ // $user->getProfile() is a Profile
$this->saveNoticeFromActivity($activity,
$user->getProfile(),
$options);
'url' => $object->link,
'source' => 'restore');
+ // $user->getProfile() is a Profile
$saved = $this->saveNoticeFromActivity($activity,
$user->getProfile(),
$options);
return true;
}
+ /**
+ * Event handler gives the plugin a chance to add custom
+ * Atom XML ActivityStreams output from a previously filled-out
+ * ActivityObject.
+ *
+ * The atomOutput method is called if it's one of
+ * our matching types.
+ *
+ * @param ActivityObject $obj
+ * @param XMLOutputter $out to add elements at end of object
+ * @return boolean hook return value
+ */
+ function onEndActivityObjectOutputAtom(ActivityObject $obj, XMLOutputter $out)
+ {
+ if (in_array($obj->type, $this->types())) {
+ $this->activityObjectOutputAtom($obj, $out);
+ }
+ return true;
+ }
+
+ /**
+ * Event handler gives the plugin a chance to add custom
+ * JSON ActivityStreams output from a previously filled-out
+ * ActivityObject.
+ *
+ * The activityObjectOutputJson method is called if it's one of
+ * our matching types.
+ *
+ * @param ActivityObject $obj
+ * @param array &$out JSON-targeted array which can be modified
+ * @return boolean hook return value
+ */
+ function onEndActivityObjectOutputJson(ActivityObject $obj, array &$out)
+ {
+ if (in_array($obj->type, $this->types())) {
+ $this->activityObjectOutputJson($obj, &$out);
+ }
+ return true;
+ }
+
function onStartShowEntryForms(&$tabs)
{
$tabs[$this->tag()] = $this->appTitle();