From 7a7a791b4dd6ce297d77fc33089e09a2e305045c Mon Sep 17 00:00:00 2001
From: Manolo Carrasco <manolo@apache.org>
Date: Tue, 26 Apr 2011 08:10:36 +0000
Subject: Assure the order of Function.f() calls is correct and test it

---
 .../java/com/google/gwt/query/client/Function.java |  49 +++---
 .../java/com/google/gwt/query/client/GQuery.java   |  12 +-
 .../gwt/query/client/plugins/QueuePlugin.java      |   5 +-
 .../google/gwt/query/client/plugins/UiPlugin.java  |   2 +-
 .../google/gwt/query/client/GQueryCoreTest.java    | 188 ++++++++++++++++++++-
 5 files changed, 223 insertions(+), 33 deletions(-)

(limited to 'gwtquery-core/src')

diff --git a/gwtquery-core/src/main/java/com/google/gwt/query/client/Function.java b/gwtquery-core/src/main/java/com/google/gwt/query/client/Function.java
index de5e8a09..f37793e5 100644
--- a/gwtquery-core/src/main/java/com/google/gwt/query/client/Function.java
+++ b/gwtquery-core/src/main/java/com/google/gwt/query/client/Function.java
@@ -15,7 +15,6 @@
  */
 package com.google.gwt.query.client;
 
-import com.google.gwt.user.client.Element;
 import com.google.gwt.user.client.Event;
 import com.google.gwt.user.client.ui.Widget;
 
@@ -27,21 +26,21 @@ public abstract class Function {
   /**
    * Override this for methods which invoke a cancel action.
    * 
-   * @param e takes a com.google.gwt.user.client.Element.
+   * @param e takes a com.google.gwt.dom.client.Element.
    * 
    */
-  public void cancel(Element e) {
+  public void cancel(com.google.gwt.dom.client.Element e) {
    // This has to be the order of calls
-    cancel(e.<com.google.gwt.dom.client.Element>cast());
+    cancel(e.<com.google.gwt.user.client.Element>cast());
   }
 
   /**
    * Override this for methods which invoke a cancel action.
    * 
-   * @param e takes a com.google.gwt.dom.client.Element.
+   * @param e takes a com.google.gwt.user.client.Element.
    * 
    */
-  public void cancel(com.google.gwt.dom.client.Element e) {
+  public void cancel(com.google.gwt.user.client.Element e) {
   }
 
   /**
@@ -56,27 +55,27 @@ public abstract class Function {
    * Override this for GQuery methods which loop over matched elements and
    * invoke a callback on each element.
    * 
-   * @param e takes a com.google.gwt.user.client.Element.
+   * @param e takes a com.google.gwt.dom.client.Element.
    * 
    */
-  public Object f(Element e, int i) {
+  public Object f(com.google.gwt.dom.client.Element e, int i) {
     // This has to be the order of calls
-    return f(e.<com.google.gwt.dom.client.Element>cast(), i); 
+    return f(e.<com.google.gwt.user.client.Element>cast(), i); 
   }
 
   /**
    * Override this for GQuery methods which loop over matched elements and
    * invoke a callback on each element.
    * 
-   * @param e takes a com.google.gwt.dom.client.Element.
+   * @param e takes a com.google.gwt.user.client.Element.
    * 
    */
-  public Object f(com.google.gwt.dom.client.Element e, int i) {
+  public Object f(com.google.gwt.user.client.Element e, int i) {
     Widget w = GQuery.getAssociatedWidget(e);
     if (w != null){
       f(w, i);
     } else {
-      f(e);
+      f(e.<com.google.gwt.dom.client.Element>cast());
     }
     return null;
   }
@@ -90,7 +89,7 @@ public abstract class Function {
    *  avoid a runtime exception. 
    */
   public Object f(Widget w, int i) {
-    f(w.getElement());//f(w) will be called later in f(Element)
+    f(w);
     return null;
   }
   
@@ -106,7 +105,7 @@ public abstract class Function {
    * Override this method for bound event handlers.
    */
   public boolean f(Event e) {
-    f((Element)e.getCurrentEventTarget().cast());
+    f(e.getCurrentEventTarget().<com.google.gwt.dom.client.Element>cast());
     return true;
   }
   
@@ -114,24 +113,26 @@ public abstract class Function {
    * Override this for GQuery methods which take a callback and do not expect a
    * return value.
    * 
-   * @param e takes a com.google.gwt.user.client.Element
+   * @param e takes a com.google.gwt.dom.client.Element
    */
-  public void f(Element e) {
+  public void f(com.google.gwt.dom.client.Element e) {
    // This has to be the order of calls
-    f(e.<com.google.gwt.dom.client.Element>cast());
+    f(e.<com.google.gwt.user.client.Element>cast());
   }
   
   /**
    * Override this for GQuery methods which take a callback and do not expect a
    * return value.
    * 
-   * @param e takes a com.google.gwt.dom.client.Element
+   * @param e takes a com.google.gwt.user.client.Element
    */
-  public void f(com.google.gwt.dom.client.Element e) {
+  private boolean loop = false;
+  public void f(com.google.gwt.user.client.Element e) {
     Widget w = GQuery.getAssociatedWidget(e);
     if (w != null){
+      loop = true;
       f(w);
-    }else{
+    } else {
       f();
     }
   }
@@ -145,8 +146,12 @@ public abstract class Function {
    *  avoid a runtime exception. 
    */
   public void f(Widget w){
-    // Do not call f(e) here to avoid loop
-    f();
+    if (loop) {
+      loop = false;
+      f();
+    } else {
+      f(w.getElement().<com.google.gwt.dom.client.Element>cast());
+    }
   }
 
 }
diff --git a/gwtquery-core/src/main/java/com/google/gwt/query/client/GQuery.java b/gwtquery-core/src/main/java/com/google/gwt/query/client/GQuery.java
index 1d0985bd..95940948 100644
--- a/gwtquery-core/src/main/java/com/google/gwt/query/client/GQuery.java
+++ b/gwtquery-core/src/main/java/com/google/gwt/query/client/GQuery.java
@@ -39,8 +39,6 @@ import com.google.gwt.dom.client.SelectElement;
 import com.google.gwt.dom.client.Style.Display;
 import com.google.gwt.dom.client.Style.HasCssName;
 import com.google.gwt.dom.client.TextAreaElement;
-import com.google.gwt.event.logical.shared.ResizeEvent;
-import com.google.gwt.event.logical.shared.ResizeHandler;
 import com.google.gwt.query.client.css.CSS;
 import com.google.gwt.query.client.css.HasCssValue;
 import com.google.gwt.query.client.css.TakesCssValue;
@@ -863,7 +861,10 @@ public class GQuery implements Lazy<GQuery, LazyGQuery> {
   public GQuery attr(String key, Function closure) {
     for (int i = 0; i < elements.getLength(); i++) {
       Element e = elements.getItem(i);
-      e.setAttribute(key, String.valueOf(closure.f(e, i)));
+      Object val = closure.f(e.<com.google.gwt.dom.client.Element>cast(), i);
+      if (val != null) {
+        e.setAttribute(key, String.valueOf(val));
+      }
     }
     return this;
   }
@@ -1680,7 +1681,7 @@ public class GQuery implements Lazy<GQuery, LazyGQuery> {
     if (f != null) {
       for (Function f1 : f) {
         for (int i = 0; i < elements.getLength(); i++) {
-          f1.f(elements.getItem(i), i);
+          f1.f(elements.getItem(i).<com.google.gwt.dom.client.Element>cast(), i);
         }
       }
     }
@@ -2372,7 +2373,7 @@ public class GQuery implements Lazy<GQuery, LazyGQuery> {
     ArrayList<W> ret = new ArrayList<W>();
     for (int i = 0; i < elements().length; i++) {
       @SuppressWarnings("unchecked")
-      W o = (W)f.f(elements()[i], i);
+      W o = (W)f.f(elements()[i].<com.google.gwt.dom.client.Element>cast(), i);
       if (o != null) {
         ret.add(o);
       }
@@ -3046,7 +3047,6 @@ public class GQuery implements Lazy<GQuery, LazyGQuery> {
       $(el).remove();
     }
     return this;
-
   }
   
   /**
diff --git a/gwtquery-core/src/main/java/com/google/gwt/query/client/plugins/QueuePlugin.java b/gwtquery-core/src/main/java/com/google/gwt/query/client/plugins/QueuePlugin.java
index d78d5e99..cff22fdb 100644
--- a/gwtquery-core/src/main/java/com/google/gwt/query/client/plugins/QueuePlugin.java
+++ b/gwtquery-core/src/main/java/com/google/gwt/query/client/plugins/QueuePlugin.java
@@ -35,7 +35,6 @@ public abstract class QueuePlugin<T extends QueuePlugin<?>> extends GQuery {
       public void run() {
         dequeue();
       }
-
     }
 
     private int delay;
@@ -146,7 +145,7 @@ public abstract class QueuePlugin<T extends QueuePlugin<?>> extends GQuery {
       Object f = q.peek();
       if (f != null) {
         if (f instanceof Function) {
-          ((Function) f).f(elem);
+          ((Function) f).f(elem.<com.google.gwt.dom.client.Element>cast());
         }
       }
     }
@@ -164,7 +163,7 @@ public abstract class QueuePlugin<T extends QueuePlugin<?>> extends GQuery {
       }
       if (q.size() == 1 && func != null) {
         if (func instanceof Function) {
-          ((Function) func).f(elem);
+          ((Function) func).f(elem.<com.google.gwt.dom.client.Element>cast());
         }
       }
       return q;
diff --git a/gwtquery-core/src/main/java/com/google/gwt/query/client/plugins/UiPlugin.java b/gwtquery-core/src/main/java/com/google/gwt/query/client/plugins/UiPlugin.java
index 76b78ab5..c75149e6 100755
--- a/gwtquery-core/src/main/java/com/google/gwt/query/client/plugins/UiPlugin.java
+++ b/gwtquery-core/src/main/java/com/google/gwt/query/client/plugins/UiPlugin.java
@@ -161,7 +161,7 @@ public class UiPlugin extends GQuery {
       handlerManager.fireEvent(e);
     }
     if (callback != null) {
-      callback.f(element);
+      callback.f(element.<com.google.gwt.dom.client.Element>cast());
     }
   }
 
diff --git a/gwtquery-core/src/test/java/com/google/gwt/query/client/GQueryCoreTest.java b/gwtquery-core/src/test/java/com/google/gwt/query/client/GQueryCoreTest.java
index 11b15310..be9a0188 100644
--- a/gwtquery-core/src/test/java/com/google/gwt/query/client/GQueryCoreTest.java
+++ b/gwtquery-core/src/test/java/com/google/gwt/query/client/GQueryCoreTest.java
@@ -47,6 +47,7 @@ import com.google.gwt.user.client.ui.HTML;
 import com.google.gwt.user.client.ui.Label;
 import com.google.gwt.user.client.ui.RootPanel;
 import com.google.gwt.user.client.ui.TextArea;
+import com.google.gwt.user.client.ui.Widget;
 
 /**
  * Test class for testing gwtquery-core api.
@@ -213,7 +214,7 @@ public class GQueryCoreTest extends GWTTestCase {
     });
     assertHtmlEquals("<p>0</p><p>1</p><p>2</p>", $("p", e));
   }
-
+  
   public void testIFrameManipulation() {
     $(e).html("<iframe name='miframe' id='miframe' src=\"javascript:''\">");
     // FF has to call empty to open and close the document before
@@ -1316,4 +1317,189 @@ public class GQueryCoreTest extends GWTTestCase {
     assertTrue(w.width() > 0);
     assertTrue(w.height() > 0);
   }
+  
+  public void testFunction() {
+    $(e).html("<div id=fid>0</div>");
+    GQuery g = $("#fid");
+    assertEquals("0", g.text());
+    
+    // EACH
+    g.each(new Function() {
+      @Override
+      public void f(com.google.gwt.user.client.Element e) {
+        $(e).text("U");
+      }
+    });
+    assertEquals("U", g.text());
+    g.each(new Function() {
+      @Override
+      public void f(com.google.gwt.dom.client.Element e) {
+        $(e).text("D");
+      }
+    });
+    assertEquals("D", g.text());
+    g.each(new Function() {
+      @Override
+      public Object f(com.google.gwt.user.client.Element e, int idx) {
+        $(e).text("U" + idx);
+        return "";
+      }
+    });
+    assertEquals("U0", g.text());
+    g.each(new Function() {
+      @Override
+      public Object f(com.google.gwt.user.client.Element e, int idx) {
+        $(e).text("D" + idx);
+        return "";
+      }
+    });
+    assertEquals("D0", g.text());
+    
+    // EVENTS
+    g.unbind(Event.ONCLICK).click(new Function(){
+      @Override
+      public void f(com.google.gwt.user.client.Element e) {
+        $(e).text("U");
+      }
+    }).click();
+    assertEquals("U", g.text());
+    g.unbind(Event.ONCLICK).click(new Function(){
+      @Override
+      public void f(com.google.gwt.dom.client.Element e) {
+        $(e).text("D");
+      }
+    }).click();
+    assertEquals("D", g.text());
+    g.unbind(Event.ONCLICK).click(new Function(){
+      @Override
+      public boolean f(Event e) {
+        $(e).text("E");
+        return false;
+      }
+    }).click();
+    assertEquals("E", g.text());
+    g.unbind(Event.ONCLICK).bind(Event.ONCLICK, "D", new Function(){
+      @Override
+      public boolean f(Event e, Object o) {
+        $(e).text("E" + o);
+        return false;
+      }
+    }).click();
+    assertEquals("ED", g.text());
+    
+    // ELEMENTS AND WIDGETS
+    Label label = new Label("1");
+    RootPanel.get().add(label);
+    g = g.add($(label));
+    assertEquals(2, g.size());
+    
+    g.each(new Function() {
+      @Override
+      public void f(com.google.gwt.user.client.Element e) {
+        $(e).text("U");
+      }
+    });
+    assertEquals("UU", g.text());
+    g.each(new Function() {
+      @Override
+      public void f(com.google.gwt.dom.client.Element e) {
+        $(e).text("D");
+      }
+    });
+    assertEquals("DD", g.text());
+    
+    g.each(new Function() {
+      @Override
+      public void f(com.google.gwt.user.client.Element e) {
+        $(e).text("U");
+      }
+      @Override
+      public void f(Widget w) {
+        $(w).text("W");
+      }
+    });
+    assertEquals("UW", g.text());
+    g.each(new Function() {
+      @Override
+      public void f(com.google.gwt.dom.client.Element e) {
+        $(e).text("D");
+      }
+      @Override
+      public void f(Widget w) {
+        $(w).text("W");
+      }
+    });
+    assertEquals("DW", g.text());
+    
+    g.each(new Function() {
+      @Override
+      public Object f(com.google.gwt.user.client.Element e, int idx) {
+        $(e).text("U" + idx);
+        return "";
+      }
+    });
+    assertEquals("U0U1", g.text());
+    g.each(new Function() {
+      @Override
+      public Object f(com.google.gwt.user.client.Element e, int idx) {
+        $(e).text("D" + idx);
+        return "";
+      }
+    });
+    assertEquals("D0D1", g.text());
+
+    g.each(new Function() {
+      @Override
+      public Object f(com.google.gwt.user.client.Element e, int idx) {
+        $(e).text("U" + idx);
+        return "";
+      }
+      @Override
+      public Object f(Widget w, int idx) {
+        $(w).text("W" + idx);
+        return "";
+      }
+    });
+    assertEquals("U0U1", g.text());
+    g.each(new Function() {
+      @Override
+      public Object f(com.google.gwt.dom.client.Element e, int idx) {
+        $(e).text("D" + idx);
+        return "";
+      }
+      @Override
+      public Object f(Widget w, int idx) {
+        $(w).text("W" + idx);
+        return "";
+      }
+    });
+    assertEquals("D0D1", g.text());
+
+    g.each(new Function() {
+      @Override
+      public void f(com.google.gwt.user.client.Element e) {
+        $(e).text("U");
+      }
+      @Override
+      public Object f(Widget w, int idx) {
+        $(w).text("W" + idx);
+        return "";
+      }
+    });
+    assertEquals("UW1", g.text());
+    g.each(new Function() {
+      @Override
+      public void f(com.google.gwt.dom.client.Element e) {
+        $(e).text("D");
+      }
+      @Override
+      public Object f(Widget w, int idx) {
+        $(w).text("W" + idx);
+        return "";
+      }
+    });
+    assertEquals("DW1", g.text());
+
+    label.removeFromParent();
+  }
 }
-- 
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