app/assets/javascripts/pageflow/editor/models/encoding_confirmation.js in pageflow-0.3.0 vs app/assets/javascripts/pageflow/editor/models/encoding_confirmation.js in pageflow-0.4.0

@@ -3,43 +3,77 @@
 
   initialize: function() {
     this.videoFiles = new Backbone.Collection();
     this.audioFiles = new Backbone.Collection();
 
+    this.updateEmpty();
     this.watchCollections();
   },
 
   watchCollections: function() {
     this.listenTo(this.videoFiles, 'add remove', this.check);
     this.listenTo(this.audioFiles, 'add remove', this.check);
 
-    this.check();
+    this.listenTo(this.videoFiles, 'reset', this.updateEmpty);
+    this.listenTo(this.audioFiles, 'reset', this.updateEmpty);
   },
 
   check: function() {
     var model = this;
 
-    this.set('empty', this.videoFiles.length === 0 && this.audioFiles.length === 0);
-    this.set('checking', true);
+    model.updateEmpty();
+    model.set('checking', true);
 
-    this.save({}, {
-      url: this.url() + '/check',
+    model.save({}, {
+      url: model.url() + '/check',
       success: function() {
         model.set('checking', false);
       },
       error: function() {
         model.set('checking', false);
       }
     });
   },
 
+  saveAndReset: function() {
+    var model = this;
+
+    model.save({}, {
+      success: function() {
+        model.set('summary_html', '');
+
+        model.videoFiles.reset();
+        model.audioFiles.reset();
+      }
+    });
+  },
+
+  updateEmpty: function() {
+    this.set('empty', this.videoFiles.length === 0 && this.audioFiles.length === 0);
+  },
+
   url: function() {
     return '/editor/entries/' + pageflow.entry.get('id') + '/encoding_confirmations';
   },
 
   toJSON: function() {
     return {
       video_file_ids: this.videoFiles.pluck('id'),
       audio_file_ids: this.audioFiles.pluck('id'),
     };
   }
-});
+});
+
+pageflow.EncodingConfirmation.createWithPreselection = function(options) {
+  var model = new pageflow.EncodingConfirmation();
+
+  if (options.fileId) {
+    if (options.fileType === 'video_file') {
+      model.videoFiles.add(pageflow.videoFiles.get(options.fileId));
+    }
+    else {
+      model.audioFiles.add(pageflow.audioFiles.get(options.fileId));
+    }
+  }
+
+  return model;
+};
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