bitbake: toaster: importlayer Add git revision typeahead to that input field

Add the front end mechanism to load the typeahead for the git revision
field on importing a layer.
Also fix one indentation issue and update the js test.

(Bitbake rev: 28114be42174095b812a93d4b5a0e01e953d74f8)

Signed-off-by: Michael Wood <michael.g.wood@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/toaster/toastergui/static/js/importlayer.js

@@ -45,7 +45,7 @@ function importLayerPageInit (ctx) {
     function(layer) {
     if (layer.results.length > 0) {
       currentLayerDepSelection = layer.results[0];
-      layerDepBtn.click();
+        layerDepBtn.click();
     }
   });
 
@@ -333,19 +333,36 @@ function importLayerPageInit (ctx) {
     check_form();
   });
 
-  /* Have a guess at the layer name */
+  /* Setup 'blank' typeahead */
+  libtoaster.makeTypeahead(gitRefInput,
+                           ctx.xhrGitRevTypeAheadUrl,
+                           { git_url: null }, function(){});
+
+
   vcsURLInput.focusout(function (){
+    if (!$(this).val())
+      return;
+
     /* If we a layer name specified don't overwrite it or if there isn't a
      * url typed in yet return
      */
-    if (layerNameInput.val() || !$(this).val())
-      return;
-
-    if ($(this).val().search("/")){
+    if (!layerNameInput.val() && $(this).val().search("/")){
       var urlPts = $(this).val().split("/");
+      /* Add a suggestion of the layer name */
       var suggestion = urlPts[urlPts.length-1].replace(".git","");
       layerNameInput.val(suggestion);
     }
+
+    /* Now actually setup the typeahead properly with the git url entered */
+    gitRefInput._typeahead('destroy');
+
+    libtoaster.makeTypeahead(gitRefInput,
+                             ctx.xhrGitRevTypeAheadUrl,
+                             { git_url: $(this).val() },
+                             function(selected){
+                               gitRefInput._typeahead("close");
+                             });
+
   });
 
   function radioDisplay() {