From d2ef0cf233e7e3f4567aff6ff7c94e666da5ee95 Mon Sep 17 00:00:00 2001
From: Evan Prodromou <evan@status.net>
Date: Wed, 29 Sep 2010 19:23:46 +0200
Subject: [PATCH] add hooks to the feedlist widget to give fine-grained control
 over feed links

---
 EVENTS.txt       | 16 ++++++++++++
 lib/feedlist.php | 66 +++++++++++++++++++++++++++---------------------
 2 files changed, 53 insertions(+), 29 deletions(-)

diff --git a/EVENTS.txt b/EVENTS.txt
index fd2bdb9d56..cad93a7121 100644
--- a/EVENTS.txt
+++ b/EVENTS.txt
@@ -1086,3 +1086,19 @@ StartDeleteOwnNotice: when a user starts to delete their own notice
 EndDeleteOwnNotice: when a user has deleted their own notice
 - $user: the user doing the delete
 - $notice: the notice being deleted
+
+StartShowFeedLinkList: before showing the feed list in the sidebar
+- $action: action being executed
+- $feeds: list of feeds to show
+
+EndShowFeedLinkList: after showing the feed list in the sidebar
+- $action: action being executed
+- $feeds: list of feeds shown
+
+StartShowFeedLink: before showing an individual feed item
+- $action: action being executed
+- $feed: feed to show
+
+EndShowFeedLink: after showing an individual feed
+- $action: action being executed
+- $feed: feed to show
diff --git a/lib/feedlist.php b/lib/feedlist.php
index 7493e3575e..4aacf0b3d8 100644
--- a/lib/feedlist.php
+++ b/lib/feedlist.php
@@ -59,42 +59,50 @@ class FeedList extends Widget
 
     function show($feeds)
     {
-        $this->out->elementStart('div', array('id' => 'export_data',
-                                              'class' => 'section'));
-        $this->out->element('h2', null, _('Feeds'));
-        $this->out->elementStart('ul', array('class' => 'xoxo'));
+        if (Event::handle('StartShowFeedLinkList', array($this->action, &$feeds))) {
+            if (!empty($feeds)) {
+                $this->out->elementStart('div', array('id' => 'export_data',
+                                                      'class' => 'section'));
+                $this->out->element('h2', null, _('Feeds'));
+                $this->out->elementStart('ul', array('class' => 'xoxo'));
 
-        foreach ($feeds as $feed) {
-            $this->feedItem($feed);
+                foreach ($feeds as $feed) {
+                    $this->feedItem($feed);
+                }
+
+                $this->out->elementEnd('ul');
+                $this->out->elementEnd('div');
+            }
+            Event::handle('EndShowFeedLinkList', array($this->action, &$feeds));
         }
-
-        $this->out->elementEnd('ul');
-        $this->out->elementEnd('div');
     }
 
     function feedItem($feed)
     {
-        $classname = null;
+        if (Event::handle('StartShowFeedLink', array($this->action, &$feed))) {
+            $classname = null;
 
-        switch ($feed->type) {
-         case Feed::RSS1:
-         case Feed::RSS2:
-            $classname = 'rss';
-            break;
-         case Feed::ATOM:
-            $classname = 'atom';
-            break;
-         case Feed::FOAF:
-            $classname = 'foaf';
-            break;
+            switch ($feed->type) {
+            case Feed::RSS1:
+            case Feed::RSS2:
+                $classname = 'rss';
+                break;
+            case Feed::ATOM:
+                $classname = 'atom';
+                break;
+            case Feed::FOAF:
+                $classname = 'foaf';
+                break;
+            }
+
+            $this->out->elementStart('li');
+            $this->out->element('a', array('href' => $feed->url,
+                                           'class' => $classname,
+                                           'type' => $feed->mimeType(),
+                                           'title' => $feed->title),
+                                $feed->typeName());
+            $this->out->elementEnd('li');
+            Event::handle('EndShowFeedLink', array($this->action, $feed));
         }
-
-        $this->out->elementStart('li');
-        $this->out->element('a', array('href' => $feed->url,
-                                       'class' => $classname,
-                                       'type' => $feed->mimeType(),
-                                       'title' => $feed->title),
-                            $feed->typeName());
-        $this->out->elementEnd('li');
     }
 }