Add a filter to only display public links

When the key filter is clicked once, it only displays private link. When it is clicked on again, it becomes red and only public links are displayed. Another click and all links are displayed. The current visibility status is shown in the search banner

Fixes #1030

2 files changed, 35 insertions, 1 deletions

diff --git a/application/PageBuilder.php b/application/PageBuilder.php
index 468f144b..0902d00d 100644
--- a/application/PageBuilder.php
+++ b/application/PageBuilder.php
@@ -83,7 +83,9 @@ class PageBuilder
             ApplicationUtils::getVersionHash(SHAARLI_VERSION, $this->conf->get('credentials.salt'))
         );
         $this->tpl->assign('scripturl', index_url($_SERVER));
-        $this->tpl->assign('privateonly', !empty($_SESSION['privateonly'])); // Show only private links?
+        $visibility = ! empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '';
+        $this->tpl->assign('visibility', $visibility);
+        $this->tpl->assign('nextVisibility', $this->getNextVisibility($visibility));
         $this->tpl->assign('untaggedonly', !empty($_SESSION['untaggedonly']));
         $this->tpl->assign('pagetitle', $this->conf->get('general.title', 'Shaarli'));
         if ($this->conf->exists('general.header_link')) {
@@ -170,4 +172,24 @@ class PageBuilder
         $this->tpl->assign('error_message', $message);
         $this->renderPage('404');
     }
+
+    /**
+     * Return the next visibility option:
+     *      private -> public -> all
+     *
+     * @param string $current visibility value
+     *
+     * @return string next visibility value
+     */
+    protected function getNextVisibility($current)
+    {
+        switch ($current) {
+            case 'private':
+                return 'public';
+            case 'public':
+                return '';
+            default:
+                return 'private';
+        }
+    }
 }
diff --git a/application/Updater.php b/application/Updater.php
index 8d2bd577..f07e7697 100644
--- a/application/Updater.php
+++ b/application/Updater.php
@@ -445,6 +445,18 @@ class Updater
         $this->linkDB->save($this->conf->get('resource.page_cache'));
         return true;
     }
+
+    /**
+     * Change privateonly session key to visibility.
+     */
+    public function updateMethodVisibilitySession()
+    {
+        if (isset($_SESSION['privateonly'])) {
+            unset($_SESSION['privateonly']);
+            $_SESSION['visibility'] = 'private';
+        }
+        return true;
+    }
 }
 
 /**