From 1705b543d304a8b784436ae781d17fcbcd2db9e2 Mon Sep 17 00:00:00 2001
From: eli <mail@eliseuama.ro>
Date: Mon, 4 Oct 2021 17:11:44 +0100
Subject: [PATCH] [PLUGIN] Delete note action added. If the author of a note is
 logged in, the action will be added to that note. Once the author presses it,
 the note will be deleted from the DB.

---
 plugins/DeleteNote/DeleteNote.php             | 97 +++++++++++++++++++
 .../assets/default_theme/css/pages/feeds.css  |  8 ++
 public/assets/default_theme/icons/delete.svg  |  1 +
 3 files changed, 106 insertions(+)
 create mode 100644 plugins/DeleteNote/DeleteNote.php
 create mode 100644 public/assets/default_theme/icons/delete.svg

diff --git a/plugins/DeleteNote/DeleteNote.php b/plugins/DeleteNote/DeleteNote.php
new file mode 100644
index 0000000000..35731c4316
--- /dev/null
+++ b/plugins/DeleteNote/DeleteNote.php
@@ -0,0 +1,97 @@
+<?php
+
+// {{{ License
+// This file is part of GNU social - https://www.gnu.org/software/social
+//
+// GNU social is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// GNU social is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with GNU social.  If not, see <http://www.gnu.org/licenses/>.
+// }}}
+
+namespace Plugin\DeleteNote;
+
+use App\Core\DB\DB;
+use App\Core\Event;
+use App\Core\Form;
+use function App\Core\I18n\_m;
+use App\Core\Modules\NoteHandlerPlugin;
+use App\Entity\Note;
+use App\Util\Common;
+use App\Util\Exception\RedirectException;
+use Symfony\Component\Form\Extension\Core\Type\HiddenType;
+use Symfony\Component\Form\Extension\Core\Type\SubmitType;
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * Delete note plugin main class.
+ * Adds "delete this note" action to respective note if the user logged in is the author.
+ *
+ * @package  GNUsocial
+ * @category ProfileColor
+ *
+ * @author    Eliseu Amaro  <mail@eliseuama.ro>
+ * @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
+ * @license   https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
+ */
+class DeleteNote extends NoteHandlerPlugin
+{
+    /**
+     * HTML rendering event that adds the repeat form as a note
+     * action, if a user is logged in
+     *
+     * @throws RedirectException
+     */
+    public function onAddNoteActions(Request $request, Note $note, array &$actions)
+    {
+        if (($user = Common::user()) === null) {
+            return Event::next;
+        }
+        $user_id = $user->getId();
+        $note_actor_id = $note->getActor()->getId();
+        if ($user_id !== $note_actor_id) {
+            return Event::next;
+        }
+
+        $note_id = $note->getId();
+        $form_delete = Form::create([
+            ['submit_delete', SubmitType::class,
+                [
+                    'label' => ' ',
+                    'attr'  => [
+                        'class' => 'button-container delete-button-container',
+                        'title' => _m('Delete this note.'),
+                    ],
+                ],
+            ],
+            ['note_id', HiddenType::class, ['data' => $note_id]],
+            ["delete-{$note_id}", HiddenType::class, []],
+        ]);
+
+        // Handle form
+        $ret = self::noteActionHandle(
+            $request, $form_delete, $note, "delete-{$note_id}", function ($note, $note_id) {
+                DB::remove(DB::findOneBy('note', ['id' => $note_id]));
+                DB::flush();
+
+                // Prevent accidental refreshes from resubmitting the form
+                throw new RedirectException();
+
+                return Event::stop;
+            });
+
+        if ($ret !== null) {
+            return $ret;
+        }
+        $actions[] = $form_delete->createView();
+        return Event::next;
+    }
+}
diff --git a/public/assets/default_theme/css/pages/feeds.css b/public/assets/default_theme/css/pages/feeds.css
index 90f5b2fef6..13d79d17c0 100644
--- a/public/assets/default_theme/css/pages/feeds.css
+++ b/public/assets/default_theme/css/pages/feeds.css
@@ -143,6 +143,14 @@
     mask-image: url("../../icons/repeat.svg") !important;
 }
 
+.delete-button-container {
+    -webkit-mask-image: url("../../icons/delete.svg") !important;
+    -o-mask-image: url("../../icons/delete.svg") !important;
+    -moz-mask-image: url("../../icons/delete.svg") !important;
+    mask-image: url("../../icons/delete.svg") !important;
+    background: #FF634766 !important;
+}
+
 .note-actions-unset {
     background: var(--bg2) !important;
 }
diff --git a/public/assets/default_theme/icons/delete.svg b/public/assets/default_theme/icons/delete.svg
new file mode 100644
index 0000000000..299864d4b5
--- /dev/null
+++ b/public/assets/default_theme/icons/delete.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="100%" height="100%"><path fill-rule="evenodd" d="M2.343 13.657A8 8 0 1113.657 2.343 8 8 0 012.343 13.657zM6.03 4.97a.75.75 0 00-1.06 1.06L6.94 8 4.97 9.97a.75.75 0 101.06 1.06L8 9.06l1.97 1.97a.75.75 0 101.06-1.06L9.06 8l1.97-1.97a.75.75 0 10-1.06-1.06L8 6.94 6.03 4.97z"></path></svg>
\ No newline at end of file