From d13454fb84061357681e600762b470c9fc257f04 Mon Sep 17 00:00:00 2001
From: Akio Nishimura <akio@akionux.net>
Date: Thu, 21 Jan 2016 08:10:35 +0900
Subject: [PATCH] Now we can delete a group logo.

---
 actions/grouplogo.php | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/actions/grouplogo.php b/actions/grouplogo.php
index 0d9c135785..e3906847d3 100644
--- a/actions/grouplogo.php
+++ b/actions/grouplogo.php
@@ -211,6 +211,10 @@ class GrouplogoAction extends GroupAction
                                         'height' => AVATAR_PROFILE_SIZE,
                                         'alt' => $this->group->nickname));
             $this->elementEnd('div');
+            if (!empty($this->group->homepage_logo)) {
+                // TRANS: Button on group logo upload page to delete current group logo.
+                $this->submit('delete', _('Delete'));
+            }
             $this->elementEnd('li');
         }
 
@@ -315,6 +319,8 @@ class GrouplogoAction extends GroupAction
             $this->uploadLogo();
         } else if ($this->arg('crop')) {
             $this->cropLogo();
+        } else if ($this->arg('delete')) {
+            $this->deleteLogo();
         } else {
             // TRANS: Form validation error message when an unsupported argument is used.
             $this->showForm(_('Unexpected form submission.'));
@@ -409,6 +415,29 @@ class GrouplogoAction extends GroupAction
         }
     }
 
+    /**
+     * Get rid of the current group logo.
+     *
+     * @return void
+     */
+    function deleteLogo()
+    {
+        $orig = clone($this->group);
+        Avatar::deleteFromProfile($this->group->getProfile());
+        @unlink(Avatar::path(basename($this->group->original_logo)));
+        @unlink(Avatar::path(basename($this->group->homepage_logo)));
+        @unlink(Avatar::path(basename($this->group->stream_logo)));
+        @unlink(Avatar::path(basename($this->group->mini_logo)));
+        $this->group->original_logo=User_group::defaultLogo(AVATAR_PROFILE_SIZE);
+        $this->group->homepage_logo=User_group::defaultLogo(AVATAR_PROFILE_SIZE);
+        $this->group->stream_logo=User_group::defaultLogo(AVATAR_STREAM_SIZE);
+        $this->group->mini_logo=User_group::defaultLogo(AVATAR_MINI_SIZE);
+        $this->group->update($orig);
+
+        // TRANS: Success message for deleting the group logo.
+        $this->showForm(_('Logo deleted.'));
+    }
+
     function showPageNotice()
     {
         if ($this->msg) {
-- 
2.39.5