AJAX tag picker fix for when all tags removed. Also layout fixes for Safari and IE6

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@8043 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/ui/repo/component/BaseAjaxItemPicker.java

@@ -140,7 +140,11 @@ public abstract class BaseAjaxItemPicker extends UIInput
       Map requestMap = context.getExternalContext().getRequestParameterMap();
       String fieldId = getHiddenFieldName();
       String value = (String)requestMap.get(fieldId);
-      if (value != null && value.length() != 0)
+      if (value.equals("empty"))
+      {
+         this.setSubmittedValue(new String("empty"));
+      }
+      else if (value != null && value.length() != 0)
       {
          if (getSingleSelect() == true)
          {

source/java/org/alfresco/web/ui/repo/component/UIAjaxTagPicker.java

@@ -112,12 +112,17 @@ public class UIAjaxTagPicker extends BaseAjaxItemPicker
       submitted = (List<NodeRef>)getSubmittedValue();
       if (submitted == null)
       {
-         submitted = (List<NodeRef>)getValue();
+         Object objSubmitted = getValue();
-      }
          // special case to submit empty lists on multi-select values
-      else if (submitted.equals("empty"))
+         if ((objSubmitted != null) && (objSubmitted.toString().equals("empty")))
          {
             submitted = null;
+            this.setValue(null);
+         }
+         else
+         {
+            submitted = (List<NodeRef>)getValue();
+         }
       }
 
       if (submitted != null)

source/web/css/picker.css

@@ -97,6 +97,7 @@ div.pickerAjaxWait
 {
    float: left;
    border-bottom: 1px solid #b2b2b2;
+   width: 292px;
 }
 
 .pickerNavControls a img, .pickerNavControls input
@@ -224,6 +225,7 @@ div.pickerNavBreadcrumbItem
 
 .pickerAddTagLinkContainer
 {
+   float: left;
    height: 16px;
    margin: 3px 0px;
 }
@@ -231,6 +233,7 @@ div.pickerNavBreadcrumbItem
 .pickerAddTagFormContainer
 {
    display: none;
+   float: left;
 }
 
 .pickerAddTagBox