fixes #3295

svn changeset:8688/svn branch:6.1

3 files changed, 44 insertions, 1 deletions

diff --git a/src/com/vaadin/terminal/gwt/client/Util.java b/src/com/vaadin/terminal/gwt/client/Util.java
index fd1b6774ea..770214f45e 100644
--- a/src/com/vaadin/terminal/gwt/client/Util.java
+++ b/src/com/vaadin/terminal/gwt/client/Util.java
@@ -10,6 +10,8 @@ import java.util.Iterator;
 import java.util.Map;
 import java.util.Set;
 
+import com.google.gwt.dom.client.DivElement;
+import com.google.gwt.dom.client.Document;
 import com.google.gwt.user.client.Command;
 import com.google.gwt.user.client.DOM;
 import com.google.gwt.user.client.DeferredCommand;
@@ -713,4 +715,31 @@ public class Util {
 
      }-*/;
 
+    /**
+     * IE7 sometimes "forgets" to render content. This function runs a hack to
+     * workaround the bug if needed. This happens easily in framset. See #3295.
+     */
+    public static void runIE7ZeroSizedBodyFix() {
+        if (BrowserInfo.get().isIE7()) {
+            int offsetWidth = RootPanel.getBodyElement().getOffsetWidth();
+            if (offsetWidth == 0) {
+                shakeBodyElement();
+            }
+        }
+    }
+
+    /**
+     * Does some very small adjustments to body element. We need this just to
+     * overcome some IE bugs.
+     */
+    public static void shakeBodyElement() {
+        final DivElement shaker = Document.get().createDivElement();
+        RootPanel.getBodyElement().insertBefore(shaker,
+                RootPanel.getBodyElement().getFirstChildElement());
+        shaker.getStyle().setPropertyPx("height", 0);
+        shaker.setInnerHTML(" ");
+        RootPanel.getBodyElement().removeChild(shaker);
+
+    }
+
 }
diff --git a/src/com/vaadin/terminal/gwt/client/ui/VOverlay.java b/src/com/vaadin/terminal/gwt/client/ui/VOverlay.java
index d107f519ed..fb6831e31a 100644
--- a/src/com/vaadin/terminal/gwt/client/ui/VOverlay.java
+++ b/src/com/vaadin/terminal/gwt/client/ui/VOverlay.java
@@ -13,6 +13,7 @@ import com.google.gwt.user.client.Element;
 import com.google.gwt.user.client.ui.PopupPanel;
 import com.google.gwt.user.client.ui.RootPanel;
 import com.vaadin.terminal.gwt.client.BrowserInfo;
+import com.vaadin.terminal.gwt.client.Util;
 
 /**
  * In Vaadin UI this Overlay should always be used for all elements that
@@ -130,6 +131,13 @@ public class VOverlay extends PopupPanel {
                 updateShadowSizeAndPosition(1.0);
             }
         }
+        Util.runIE7ZeroSizedBodyFix();
+    }
+
+    @Override
+    public void hide(boolean autoClosed) {
+        super.hide(autoClosed);
+        Util.runIE7ZeroSizedBodyFix();
     }
 
     @Override
diff --git a/src/com/vaadin/terminal/gwt/client/ui/VView.java b/src/com/vaadin/terminal/gwt/client/ui/VView.java
index 95e85aaa1f..e9a7588d93 100644
--- a/src/com/vaadin/terminal/gwt/client/ui/VView.java
+++ b/src/com/vaadin/terminal/gwt/client/ui/VView.java
@@ -520,7 +520,13 @@ public class VView extends SimplePanel implements Container, ResizeHandler,
 
         @Override
         public int getWidth() {
-            return getElement().getOffsetWidth() - getExcessWidth();
+            int w = getElement().getOffsetWidth() - getExcessWidth();
+            if (w < 10 && BrowserInfo.get().isIE7()) {
+                // Overcome an IE7 bug #3295
+                Util.shakeBodyElement();
+                w = getElement().getOffsetWidth() - getExcessWidth();
+            }
+            return w;
         }
 
         private int getExcessWidth() {