semgenter; default value of first_clone is -1

link to #2041

browser/js/segmenter.js

@@ -61,7 +61,7 @@ function Segment(id, model, database) {
     this.starPath = "M 0,6.1176482 5.5244193, 5.5368104 8.0000008,0 10.172535,5.5368104 16,6.1176482 11.406183,9.9581144 12.947371,16 8.0000008,12.689863 3.0526285,16 4.4675491,10.033876 z";
     this.cgi_address = CGI_ADDRESS
     this.m = model
-    this.first_clone = 0 ; // id of sequence at the top of the segmenter
+    this.first_clone = -1 ; // id of sequence at the top of the segmenter
     this.memtab = [];
     this.sequence = {};
     this.is_open = false;
@@ -718,6 +718,7 @@ Segment.prototype = {
 
         if (previous_li && previous_li.length === 0 ) {
             if (cloneID == undefined){
+                this.set_first_clone( -1 )
                 return
             }
             this.set_first_clone( cloneID )
@@ -1391,6 +1392,7 @@ genSeq.prototype= {
         var ref = '';
         var seq = '';
 
+
         if (this.segmenter.amino) {
             seq = this.seqAA;
             ref = this.segmenter.sequence[this.segmenter.first_clone].seqAA;

browser/test/QUnit/testFiles/segmenter_test.js

@@ -11,8 +11,8 @@ QUnit.test("segmenter", function(assert) {
     m.initClones()
     
     var segment = new Segment("segment", m);
+    assert.equal(segment.first_clone, -1, "segment.first_clone is set to -1 at init")
     segment.init()
-    assert.equal(segment.first_clone, 0, "segment.first_clone is set to 0 at init")
     
     //select test
     m.select(0)
@@ -34,7 +34,7 @@ QUnit.test("segmenter", function(assert) {
     assert.equal(document.getElementById("f0"), null, "unselect : Ok")
     assert.equal(document.getElementById("f1"), null, "unselect : Ok")
     assert.equal(document.getElementById("f2"), null, "unselect : Ok")
-    assert.equal(segment.first_clone, 0, "segment.first_clone is set to 0 when no clones are selected")
+    assert.equal(segment.first_clone, -1, "segment.first_clone is set to -1 when no clones are selected")
 
     m.select(0);
     m.select(2);