Fixed orphaned comment bug

Comments are now deleted and restored with the blocks to which they are attached.

src/blocks/Block.as

@@ -43,7 +43,7 @@ import flash.display.*;
 	import translation.Translator;
 	import util.*;
 	import uiwidgets.*;
-	import scratch.ScratchStage;
+	import scratch.*;
 
 public class Block extends Sprite {
 
@@ -765,6 +765,22 @@ public class Block extends Sprite {
 		Scratch.app.runtime.checkForGraphicEffects();
 	}
 
+	public function attachedCommentsIn(scriptsPane:ScriptsPane):Array {
+		var allBlocks:Array = [];
+		allBlocksDo(function (b:Block):void {
+			allBlocks.push(b);
+		});
+		var result:Array = []
+		if (!scriptsPane) return result;
+		for (var i:int = 0; i < scriptsPane.numChildren; i++) {
+			var c:ScratchComment = scriptsPane.getChildAt(i) as ScratchComment;
+			if (c && c.blockRef && allBlocks.indexOf(c.blockRef) != -1) {
+				result.push(c);
+			}
+		}
+		return result;
+	}
+
 	public function addComment():void {
 		var scriptsPane:ScriptsPane = topBlock().parent as ScriptsPane;
 		if (scriptsPane) scriptsPane.addComment(this);

src/scratch/ScratchRuntime.as

@@ -941,6 +941,16 @@ public class ScratchRuntime {
 	public function clearLastDelete():void { lastDelete = null }
 
 	public function recordForUndelete(obj:*, x:int, y:int, index:int, owner:* = null):void {
+		if (obj is Block) {
+			var comments:Array = (obj as Block).attachedCommentsIn(app.scriptsPane);
+			if (comments.length) {
+				for each (var c:ScratchComment in comments) {
+					c.parent.removeChild(c);
+				}
+				app.scriptsPane.fixCommentLayout();
+				obj = [obj, comments];
+			}
+		}
 		lastDelete = [obj, x, y, index, owner];
 	}
 
@@ -966,13 +976,20 @@ public class ScratchRuntime {
 			app.addNewSprite(obj);
 			obj.setScratchXY(x, y);
 			app.selectSprite(obj);
-		} else if ((obj is Block) || (obj is ScratchComment)) {
+		} else if ((obj is Array) || (obj is Block) || (obj is ScratchComment)) {
 			app.selectSprite(prevOwner);
 			app.setTab('scripts');
-			obj.x = x;
-			obj.y = y;
-			if (obj is Block) obj.cacheAsBitmap = true;
-			app.scriptsPane.addChild(obj);
+			var b:DisplayObject = obj is Array ? obj[0] : obj;
+			b.x = x;
+			b.y = y;
+			if (b is Block) b.cacheAsBitmap = true;
+			app.scriptsPane.addChild(b);
+			if (obj is Array) {
+				for each (var c:ScratchComment in obj[1]) {
+					app.scriptsPane.addChild(c);
+				}
+				app.scriptsPane.fixCommentLayout();
+			}
 		}
 	}