Deprecate empty list block.

blockly_compressed.js

@@ -1246,7 +1246,8 @@ Blockly.Css.CONTENT=[".blocklySvg {","  background-color: #fff;","  outline: non
 "}",".blocklyWidgetDiv .goog-menuitem-disabled .goog-menuitem-icon {","  opacity: 0.3;","  -moz-opacity: 0.3;","  filter: alpha(opacity=30);","}",".blocklyWidgetDiv .goog-menuitem-highlight,",".blocklyWidgetDiv .goog-menuitem-hover {","  background-color: #d6e9f8;","  border-color: #d6e9f8;","  border-style: dotted;","  border-width: 1px 0;","  padding-bottom: 3px;","  padding-top: 3px;","}",".blocklyWidgetDiv .goog-menuitem-checkbox,",".blocklyWidgetDiv .goog-menuitem-icon {","  background-repeat: no-repeat;",
 "  height: 16px;","  left: 6px;","  position: absolute;","  right: auto;","  vertical-align: middle;","  width: 16px;","}",".blocklyWidgetDiv .goog-menuitem-rtl .goog-menuitem-checkbox,",".blocklyWidgetDiv .goog-menuitem-rtl .goog-menuitem-icon {","  left: auto;","  right: 6px;","}",".blocklyWidgetDiv .goog-option-selected .goog-menuitem-checkbox,",".blocklyWidgetDiv .goog-option-selected .goog-menuitem-icon {","  background: url(//ssl.gstatic.com/editor/editortoolbar.png) no-repeat -512px 0;","}",
 ".blocklyWidgetDiv .goog-menuitem-accel {","  color: #999;","  direction: ltr;","  left: auto;","  padding: 0 6px;","  position: absolute;","  right: 0;","  text-align: right;","}",".blocklyWidgetDiv .goog-menuitem-rtl .goog-menuitem-accel {","  left: 0;","  right: auto;","  text-align: left;","}",".blocklyWidgetDiv .goog-menuitem-mnemonic-hint {","  text-decoration: underline;","}",".blocklyWidgetDiv .goog-menuitem-mnemonic-separator {","  color: #999;","  font-size: 12px;","  padding-left: 4px;",
-"}",".blocklyWidgetDiv .goog-menuseparator {","  border-top: 1px solid #ccc;","  margin: 4px 0;","  padding: 0;","}",""];Blockly.WidgetDiv={};Blockly.WidgetDiv.DIV=null;Blockly.WidgetDiv.owner_=null;Blockly.WidgetDiv.dispose_=null;Blockly.WidgetDiv.createDom=function(){Blockly.WidgetDiv.DIV||(Blockly.WidgetDiv.DIV=goog.dom.createDom("div","blocklyWidgetDiv"),document.body.appendChild(Blockly.WidgetDiv.DIV))};Blockly.WidgetDiv.show=function(a,b,c){Blockly.WidgetDiv.hide();Blockly.WidgetDiv.owner_=a;Blockly.WidgetDiv.dispose_=c;Blockly.WidgetDiv.DIV.style.direction=b?"rtl":"ltr";Blockly.WidgetDiv.DIV.style.display="block"};
+"}",".blocklyWidgetDiv .goog-menuseparator {","  border-top: 1px solid #ccc;","  margin: 4px 0;","  padding: 0;","}",""];Blockly.WidgetDiv={};Blockly.WidgetDiv.DIV=null;Blockly.WidgetDiv.owner_=null;Blockly.WidgetDiv.dispose_=null;Blockly.WidgetDiv.createDom=function(){Blockly.WidgetDiv.DIV||(Blockly.WidgetDiv.DIV=goog.dom.createDom("div","blocklyWidgetDiv"),document.body.appendChild(Blockly.WidgetDiv.DIV))};
+Blockly.WidgetDiv.show=function(a,b,c){Blockly.WidgetDiv.hide();Blockly.WidgetDiv.owner_=a;Blockly.WidgetDiv.dispose_=c;a=goog.style.getViewportPageOffset(document);Blockly.WidgetDiv.DIV.style.top=a.y+"px";Blockly.WidgetDiv.DIV.style.direction=b?"rtl":"ltr";Blockly.WidgetDiv.DIV.style.display="block"};
 Blockly.WidgetDiv.hide=function(){Blockly.WidgetDiv.owner_&&(Blockly.WidgetDiv.DIV.style.display="none",Blockly.WidgetDiv.DIV.style.left="",Blockly.WidgetDiv.DIV.style.top="",Blockly.WidgetDiv.DIV.style.height="",Blockly.WidgetDiv.dispose_&&Blockly.WidgetDiv.dispose_(),Blockly.WidgetDiv.owner_=null,Blockly.WidgetDiv.dispose_=null,goog.dom.removeChildren(Blockly.WidgetDiv.DIV))};Blockly.WidgetDiv.isVisible=function(){return!!Blockly.WidgetDiv.owner_};
 Blockly.WidgetDiv.hideIfOwner=function(a){Blockly.WidgetDiv.owner_==a&&Blockly.WidgetDiv.hide()};Blockly.WidgetDiv.position=function(a,b,c,d,e){b<d.y&&(b=d.y);e?a>c.width+d.x&&(a=c.width+d.x):a<d.x&&(a=d.x);Blockly.WidgetDiv.DIV.style.left=a+"px";Blockly.WidgetDiv.DIV.style.top=b+"px";Blockly.WidgetDiv.DIV.style.height=c.height-b+d.y+"px"};Blockly.inject=function(a,b){goog.isString(a)&&(a=document.getElementById(a));if(!goog.dom.contains(document,a))throw"Error: container is not in current document.";var c=Blockly.parseOptions_(b||{}),d,e=function(){var b=Blockly.createDom_(a,c);d=Blockly.createMainWorkspace_(b,c);Blockly.init_(d);d.markFocused();Blockly.bindEvent_(b,"focus",d,d.markFocused)};if(c.enableRealtime){var f=document.getElementById("realtime");f&&(f.style.display="block");Blockly.Realtime.startRealtime(e,a,c.realtimeOptions)}else e();
 return d};Blockly.parseToolboxTree_=function(a){a?("string"!=typeof a&&"undefined"==typeof XSLTProcessor&&(a=a.outerHTML),"string"==typeof a&&(a=Blockly.Xml.textToDom(a))):a=null;return a};

blockly_uncompressed.js

@@ -59,7 +59,7 @@ goog.addDependency("../../../" + dir + "/core/trashcan.js", ['Blockly.Trashcan']
 goog.addDependency("../../../" + dir + "/core/utils.js", ['Blockly.utils'], ['goog.dom', 'goog.events.BrowserFeature', 'goog.math.Coordinate', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/variables.js", ['Blockly.Variables'], ['Blockly.Workspace', 'goog.string']);
 goog.addDependency("../../../" + dir + "/core/warning.js", ['Blockly.Warning'], ['Blockly.Bubble', 'Blockly.Icon']);
-goog.addDependency("../../../" + dir + "/core/widgetdiv.js", ['Blockly.WidgetDiv'], ['Blockly.Css', 'goog.dom']);
+goog.addDependency("../../../" + dir + "/core/widgetdiv.js", ['Blockly.WidgetDiv'], ['Blockly.Css', 'goog.dom', 'goog.style']);
 goog.addDependency("../../../" + dir + "/core/workspace.js", ['Blockly.Workspace'], ['goog.math']);
 goog.addDependency("../../../" + dir + "/core/workspace_svg.js", ['Blockly.WorkspaceSvg'], ['Blockly.ScrollbarPair', 'Blockly.Trashcan', 'Blockly.ZoomControls', 'Blockly.Workspace', 'Blockly.Xml', 'goog.dom', 'goog.math.Coordinate', 'goog.userAgent']);
 goog.addDependency("../../../" + dir + "/core/xml.js", ['Blockly.Xml'], ['goog.dom']);

blocks/lists.js

@@ -37,6 +37,10 @@ Blockly.Blocks.lists.HUE = 260;
 Blockly.Blocks['lists_create_empty'] = {
   /**
    * Block for creating an empty list.
+   * The 'list_create_with' block is preferred as it is more flexible.
+   * <block type="lists_create_with">
+   *   <mutation items="0"></mutation>
+   * </block>
    * @this Blockly.Block
    */
   init: function() {

demos/code/index.html

@@ -192,7 +192,9 @@
       </block>
     </category>
     <category id="catLists">
-      <block type="lists_create_empty"></block>
+      <block type="lists_create_with">
+        <mutation items="0"></mutation>
+      </block>
       <block type="lists_create_with"></block>
       <block type="lists_repeat">
         <value name="NUM">

tests/playground.html

@@ -343,7 +343,9 @@ h1 {
       </block>
     </category>
     <category name="Lists">
-      <block type="lists_create_empty"></block>
+      <block type="lists_create_with">
+        <mutation items="0"></mutation>
+      </block>
       <block type="lists_create_with"></block>
       <block type="lists_repeat">
         <value name="NUM">