Feat: add rescan database command

htdocs/css/mympd.css

@@ -128,6 +128,12 @@ small {
   font-feature-settings: 'liga';
 }
 
+.material-icons-left {
+  font-size: 1rem;
+  margin-left: -1em;
+  vertical-align:middle;
+}
+
 .material-icons-small {
   font-size: 16px;
 }
@@ -281,3 +287,7 @@ caption {
   width:100%;
   margin-left: 15px;
 }
+
+#menu-dbupdate {
+  padding-left:1rem;
+}

htdocs/index.html

@@ -24,7 +24,11 @@
           </a>
           <div class="dropdown-menu bg-dark">
             <a class="dropdown-item text-light bg-dark" href="#" data-href='{"cmd": "showAddToPlaylist", "options": ["stream"]}'>Add Stream</a>
-            <a class="dropdown-item text-light bg-dark" href="#" data-href='{"cmd": "updateDB", "options": []}'>Update Database</a>
+            <a id="navDBupdate" class="dropdown-item text-light bg-dark" data-toggle="collapse" href="#menu-dbupdate"><span class="material-icons material-icons-left">keyboard_arrow_right</span>Database</a>
+              <div class="collapse" id="menu-dbupdate">
+                <a class="dropdown-item text-light bg-dark" href="#" data-href='{"cmd": "updateDB", "options": []}'>Update</a>
+                <a class="dropdown-item text-light bg-dark" href="#" data-href='{"cmd": "rescanDB", "options": []}'>Rescan</a>
+              </div>
             <a class="dropdown-item text-light bg-dark" href="#" data-href='{"cmd": "openLocalPlayer", "options": []}'>Local Player</a>
             <a class="dropdown-item text-light bg-dark" href="#" data-toggle="modal" data-target="#modalSettings">Settings</a>
             <a class="dropdown-item text-light bg-dark" href="#" data-toggle="modal" data-target="#modalAbout">About</a>

htdocs/js/mympd.js

@@ -310,6 +310,16 @@ function appInit() {
         }
     }, false);
 
+    document.getElementById('navDBupdate').addEventListener('click', function(event) {
+        event.stopPropagation();
+        event.preventDefault();
+        var icon = this.getElementsByTagName('span')[0];
+        if (icon.innerText == 'keyboard_arrow_right')
+            icon.innerText = 'keyboard_arrow_down';
+        else
+            icon.innerText = 'keyboard_arrow_right';        
+    }, false);
+  
     document.getElementById('volumeIcon').parentNode.addEventListener('show.bs.dropdown', function () {
         sendAPI({"cmd": "MPD_API_PLAYER_OUTPUT_LIST"}, parseOutputs);
     });    
@@ -1840,6 +1850,11 @@ function updateDB() {
     updateDBstarted(true);
 }
 
+function rescanDB() {
+    sendAPI({"cmd": "MPD_API_DATABASE_RESCAN"});
+    updateDBstarted(true);
+}
+
 function updateDBstarted(showModal) {
     if (showModal == true) {
         document.getElementById('updateDBfinished').innerText = '';

src/mpd_client.c

@@ -179,6 +179,11 @@ void callback_mympd(struct mg_connection *nc, const struct mg_str msg) {
             if (uint_rc > 0)
                 n = snprintf(mpd.buf, MAX_SIZE, "{\"type\": \"result\", \"data\": \"ok\"}");
             break;
+        case MPD_API_DATABASE_RESCAN:
+            uint_rc = mpd_run_rescan(mpd.conn, NULL);
+            if (uint_rc > 0)
+                n = snprintf(mpd.buf, MAX_SIZE, "{\"type\": \"result\", \"data\": \"ok\"}");
+            break;            
         case MPD_API_PLAYER_PAUSE:
             mpd_run_toggle_pause(mpd.conn);
             n = snprintf(mpd.buf, MAX_SIZE, "{\"type\": \"result\", \"data\": \"ok\"}");

src/mpd_client.h

@@ -74,6 +74,7 @@
     X(MPD_API_PLAYLIST_CONTENT_LIST) \
     X(MPD_API_DATABASE_SEARCH) \
     X(MPD_API_DATABASE_UPDATE) \
+    X(MPD_API_DATABASE_RESCAN) \
     X(MPD_API_DATABASE_FILESYSTEM_LIST) \
     X(MPD_API_DATABASE_TAG_LIST) \
     X(MPD_API_DATABASE_TAG_ALBUM_LIST) \