Add 'add to play queue' actions to playlist pages (#1226)

airsonic-main/src/main/java/org/airsonic/player/ajax/PlayQueueService.java

@@ -250,6 +250,33 @@ public class PlayQueueService {
         return doPlayInternetRadio(request, player, radio).setStartPlayerAt(0);
     }
 
+    /**
+     * @param index Start playing at this index, or play whole playlist if {@code null}.
+     */
+    public PlayQueueInfo addPlaylist(int id, Integer index) throws Exception {
+        HttpServletRequest request = WebContextFactory.get().getHttpServletRequest();
+        HttpServletResponse response = WebContextFactory.get().getHttpServletResponse();
+
+        String username = securityService.getCurrentUsername(request);
+        boolean queueFollowingSongs = settingsService.getUserSettings(username).isQueueFollowingSongs();
+
+        List<MediaFile> files = playlistService.getFilesInPlaylist(id, true);
+        if (!files.isEmpty() && index != null) {
+            if (queueFollowingSongs) {
+                files = files.subList(index, files.size());
+            } else {
+                files = Arrays.asList(files.get(index));
+            }
+        }
+
+        // Remove non-present files
+        files.removeIf(file -> !file.isPresent());
+
+        // Add to the play queue
+        int[] ids = files.stream().mapToInt(f -> f.getId()).toArray();
+        return doAdd(request, response, ids, index);
+    }
+
     /**
      * @param index Start playing at this index, or play whole playlist if {@code null}.
      */
@@ -271,6 +298,8 @@ public class PlayQueueService {
 
         // Remove non-present files
         files.removeIf(file -> !file.isPresent());
+
+        // Play now
         Player player = getCurrentPlayer(request, response);
         return doPlay(request, player, files).setStartPlayerAt(0);
     }

airsonic-main/src/main/webapp/WEB-INF/jsp/coverArt.jsp

@@ -76,7 +76,7 @@ PARAMETERS
                  style="position: relative; top: 8px; left: 8px; z-index: 2; display:none" >
         </div>
 
-        <c:if test="${not empty param.albumId}">
+        <c:if test="${not empty param.albumId or not empty param.playlistId}">
           <div style="position: relative; width: 0; height: 0">
               <img alt="Add overlay" src="<spring:theme code='addOverlayImage'/>" id="${addId}"
                    style="position: relative; top: 8px; left: 48px; z-index: 2; display:none" >
@@ -154,5 +154,8 @@ PARAMETERS
         <c:if test="${not empty param.albumId}">
         top.playQueue.onAdd(${param.albumId});
         </c:if>
+        <c:if test="${not empty param.playlistId}">
+        top.playQueue.onAddPlaylist(${param.playlistId});
+        </c:if>
     });
 </script>

airsonic-main/src/main/webapp/WEB-INF/jsp/playQueue.jsp

@@ -380,6 +380,9 @@
     function onAddNext(id) {
         playQueueService.addAt(id, getCurrentSongIndex() + 1, playQueueCallback);
     }
+    function onAddPlaylist(id, index) {
+        playQueueService.addPlaylist(id, index, playQueueCallback);
+    }
     function onShuffle() {
         playQueueService.shuffle(playQueueCallback);
     }

airsonic-main/src/main/webapp/WEB-INF/jsp/playlist.jsp

@@ -134,6 +134,9 @@
         function onPlayAll() {
             top.playQueue.onPlayPlaylist(playlist.id);
         }
+        function onAddAll() {
+            top.playQueue.onAddPlaylist(playlist.id);
+        }
         function onAdd(index) {
             top.playQueue.onAdd(songs[index].id);
             $().toastmessage('showSuccessToast', '<fmt:message key="main.addlast.toast"/>')
@@ -184,7 +187,8 @@
 
 <h1><a href="playlists.view"><fmt:message key="left.playlists"/></a> &raquo; <span id="name">${fn:escapeXml(model.playlist.name)}</span></h1>
 <h2>
-    <span class="header"><a href="javascript:void(0)" onclick="onPlayAll();"><fmt:message key="common.play"/></a></span>
+    <span class="header"><a href="javascript:onPlayAll()"><fmt:message key="common.play"/></a></span> |
+    <span class="header"><a href="javascript:onAddAll()"><fmt:message key="main.addall"/></a></span>
 
     <c:if test="${model.user.downloadRole}">
         <c:url value="download.view" var="downloadUrl"><c:param name="playlist" value="${model.playlist.id}"/></c:url>