Dynamically show 'Start' and 'Pause' menu items

src/webui/www/public/scripts/contextmenu.js

@@ -129,29 +129,82 @@ var ContextMenu = new Class({
 
     updateMenuItems: function () {
         all_are_seq_dl = true;
+        there_are_seq_dl = false;
         all_are_f_l_piece_prio = true;
+        there_are_f_l_piece_prio = false;
         all_are_downloaded = true;
+        all_are_paused = true;
+        there_are_paused = false;
 
         var h = myTable.selectedIds();
         h.each(function(item, index){
             tr = myTable.rows.get(item);
+
             if (tr.getAttribute('seq_dl') != 'true')
                 all_are_seq_dl = false;
+            else
+                there_are_seq_dl = true;
+
             if (tr.getAttribute('f_l_piece_prio') != 'true')
                 all_are_f_l_piece_prio = false;
+            else
+                there_are_f_l_piece_prio = true;
+
             if (tr.getAttribute('downloaded') != 'true')
                 all_are_downloaded = false;
+
+            state = tr.getAttribute('state');
+            if ((state != 'pausedUP') && (state != 'pausedDL'))
+                all_are_paused = false;
+            else
+                there_are_paused = true;
         });
 
+        show_seq_dl = true;
+
+        if (!all_are_seq_dl && there_are_seq_dl)
+            show_seq_dl = false;
+
+        show_f_l_piece_prio = true;
+
+        if (!all_are_f_l_piece_prio && there_are_f_l_piece_prio)
+            show_f_l_piece_prio = false;
+
         if (all_are_downloaded) {
             this.hideItem('SequentialDownload');
             this.hideItem('FirstLastPiecePrio');
         } else {
+            if (!show_seq_dl && show_f_l_piece_prio)
+                this.menu.getElement('a[href$=FirstLastPiecePrio]').parentNode.addClass('separator');
+            else
+                this.menu.getElement('a[href$=FirstLastPiecePrio]').parentNode.removeClass('separator');
+
+            if (show_seq_dl)
                 this.showItem('SequentialDownload');
+            else
+                this.hideItem('SequentialDownload');
+
+            if (show_f_l_piece_prio)
                 this.showItem('FirstLastPiecePrio');
+            else
+                this.hideItem('FirstLastPiecePrio');
+
             this.setItemChecked('SequentialDownload', all_are_seq_dl);
             this.setItemChecked('FirstLastPiecePrio', all_are_f_l_piece_prio);
         }
+
+        if (all_are_paused) {
+            this.showItem('Start');
+            this.hideItem('Pause');
+        } else {
+            if (there_are_paused) {
+                this.showItem('Start');
+                this.showItem('Pause');
+            } else {
+                this.hideItem('Start');
+                this.showItem('Pause');
+            }
+        }
     },
 
     //show menu