Fix for issue #971; simplifies several conditional expressions into || operators.

Patch by: fredsa
Review by: scottb


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@989 8db76d5a-ed1c-0410-87a9-c151d255dfc7

user/src/com/google/gwt/user/client/impl/DOMImpl.java

diff --git a/user/src/com/google/gwt/user/client/impl/DOMImpl.java b/user/src/com/google/gwt/user/client/impl/DOMImpl.java
index e103e68..542cb3c 100644
--- a/user/src/com/google/gwt/user/client/impl/DOMImpl.java
+++ b/user/src/com/google/gwt/user/client/impl/DOMImpl.java
@@ -68,13 +68,13 @@
   }-*/;
 
   public native Element eventGetFromElement(Event evt) /*-{
-    return evt.fromElement ? evt.fromElement : null;
+    return evt.fromElement || null;
   }-*/;
 
   public native int eventGetKeyCode(Event evt) /*-{
     // 'which' gives the right key value, except when it doesn't -- in which
     // case, keyCode gives the right value on all browsers.
-    return evt.which ? evt.which : evt.keyCode;
+    return evt.which || evt.keyCode;
   }-*/;
 
   public abstract int eventGetMouseWheelVelocityY(Event evt);
@@ -166,7 +166,7 @@
 
   public native Element getElementById(String id) /*-{
     var elem = $doc.getElementById(id);
-    return elem ? elem : null;
+    return elem || null;
   }-*/;
 
   public native String getElementProperty(Element elem, String prop) /*-{
@@ -187,7 +187,7 @@
   }-*/;
 
   public native int getEventsSunk(Element elem) /*-{
-    return elem.__eventBits ? elem.__eventBits : 0;
+    return elem.__eventBits || 0;
   }-*/;
 
   public abstract Element getFirstChild(Element elem);

user/src/com/google/gwt/user/client/impl/DOMImplIE6.java

diff --git a/user/src/com/google/gwt/user/client/impl/DOMImplIE6.java b/user/src/com/google/gwt/user/client/impl/DOMImplIE6.java
index e0a3edf..4fd4a2f 100644
--- a/user/src/com/google/gwt/user/client/impl/DOMImplIE6.java
+++ b/user/src/com/google/gwt/user/client/impl/DOMImplIE6.java
@@ -41,12 +41,11 @@
   }-*/;
 
   public native Element eventGetTarget(Event evt) /*-{
-    var elem = evt.srcElement;
-    return elem ? elem : null;
+    return evt.srcElement || null;
   }-*/;
 
   public native Element eventGetToElement(Event evt) /*-{
-    return evt.toElement ? evt.toElement : null;
+    return evt.toElement || null;
   }-*/;
 
   public native void eventPreventDefault(Event evt) /*-{
@@ -80,7 +79,7 @@
 
   public native Element getChild(Element elem, int index) /*-{
     var child = elem.children[index];
-    return child ? child : null;
+    return child || null;
   }-*/;
 
   public native int getChildCount(Element elem) /*-{
@@ -98,7 +97,7 @@
 
   public native Element getFirstChild(Element elem) /*-{
     var child = elem.firstChild;
-    return child ? child : null;
+    return child || null;
   }-*/;
 
   public native String getInnerText(Element elem) /*-{
@@ -108,12 +107,12 @@
 
   public native Element getNextSibling(Element elem) /*-{
     var sib = elem.nextSibling;
-    return sib ? sib : null;
+    return sib || null;
   }-*/;
 
   public native Element getParent(Element elem) /*-{
     var parent = elem.parentElement;
-    return parent ? parent : null;
+    return parent || null;
   }-*/;
 
   public native String iframeGetSrc(Element elem) /*-{

user/src/com/google/gwt/user/client/impl/DOMImplStandard.java

diff --git a/user/src/com/google/gwt/user/client/impl/DOMImplStandard.java b/user/src/com/google/gwt/user/client/impl/DOMImplStandard.java
index 5242540..f66e9e1 100644
--- a/user/src/com/google/gwt/user/client/impl/DOMImplStandard.java
+++ b/user/src/com/google/gwt/user/client/impl/DOMImplStandard.java
@@ -37,12 +37,12 @@
   }-*/;
 
   public native Element eventGetTarget(Event evt) /*-{
-    return evt.target ? evt.target : null;
+    return evt.target || null;
   }-*/;
 
   public native Element eventGetToElement(Event evt) /*-{
     // Standard browsers use relatedTarget rather than toElement.
-    return evt.relatedTarget ? evt.relatedTarget : null;
+    return evt.relatedTarget || null;
   }-*/;
 
   public native void eventPreventDefault(Event evt) /*-{
@@ -95,14 +95,14 @@
     var child = elem.firstChild;
     while (child && child.nodeType != 1)
       child = child.nextSibling;
-    return child ? child : null;
+    return child || null;
   }-*/;
 
   public native Element getNextSibling(Element elem) /*-{
     var sib = elem.nextSibling;
     while (sib && sib.nodeType != 1)
       sib = sib.nextSibling;
-    return sib ? sib : null;
+    return sib || null;
   }-*/;
 
   public native Element getParent(Element elem) /*-{
@@ -112,7 +112,7 @@
     }
     if (parent.nodeType != 1)
       parent = null;
-    return parent ? parent : null;
+    return parent || null;
   }-*/;
 
   public native String iframeGetSrc(Element elem) /*-{