From 67d3e2e302fd397f03675c61e36e78fa90ad6beb Mon Sep 17 00:00:00 2001
From: Saif <saifi0102@gmail.com>
Date: Fri, 6 May 2016 04:30:42 +0500
Subject: Added propagateSetVisible()


diff --git a/src/Wt/WCompositeWidget b/src/Wt/WCompositeWidget
index 47d4516..9d0168a 100644
--- a/src/Wt/WCompositeWidget
+++ b/src/Wt/WCompositeWidget
@@ -149,6 +149,7 @@ public:
   virtual void setSelectable(bool selectable);  
   virtual void doJavaScript(const std::string& js);
   virtual void propagateSetEnabled(bool enabled);
+  virtual void propagateSetVisible(bool visible);
 
   static WFormWidget *getFormWidget(WWidget *widget);
   WFormWidget* formWidgetImpl() { return fwImpl_; };
diff --git a/src/Wt/WCompositeWidget.C b/src/Wt/WCompositeWidget.C
index 39bdf67..cf633bc 100644
--- a/src/Wt/WCompositeWidget.C
+++ b/src/Wt/WCompositeWidget.C
@@ -602,4 +602,9 @@ void WCompositeWidget::propagateSetEnabled(bool enabled)
     impl_->webWidget()->propagateSetEnabled(enabled);
 }
 
+void WCompositeWidget::propagateSetVisible(bool visible)
+{
+	impl_->webWidget()->propagateSetVisible(visible);
+}
+
 }
diff --git a/src/Wt/WWebWidget b/src/Wt/WWebWidget
index f6e1a22..c6032ac 100644
--- a/src/Wt/WWebWidget
+++ b/src/Wt/WWebWidget
@@ -328,6 +328,7 @@ protected:
   virtual std::string renderRemoveJs(bool recursive);
 
   virtual void propagateSetEnabled(bool enabled);
+  virtual void propagateSetVisible(bool visible);
   virtual bool isStubbed() const;
   virtual void enableAjax();
 
diff --git a/src/Wt/WWebWidget.C b/src/Wt/WWebWidget.C
index 702c70e..3c09d97 100644
--- a/src/Wt/WWebWidget.C
+++ b/src/Wt/WWebWidget.C
@@ -1057,6 +1057,8 @@ void WWebWidget::setHidden(bool hidden, const WAnimation& animation)
   if (canOptimizeUpdates() && (animation.empty() && hidden == isHidden()))
     return;
 
+  bool wasVisible = isVisible();
+
   flags_.set(BIT_HIDDEN, hidden);
   flags_.set(BIT_HIDDEN_CHANGED);
 
@@ -1068,6 +1070,13 @@ void WWebWidget::setHidden(bool hidden, const WAnimation& animation)
     transientImpl_->animation_ = animation;
   }
 
+  bool shouldBeVisible = !hidden;
+  if(shouldBeVisible && parent())
+	  shouldBeVisible = parent()->isVisible();
+
+  if(shouldBeVisible != wasVisible)
+	  propagateSetVisible(shouldBeVisible);
+
   WApplication::instance()
     ->session()->renderer().updateFormObjects(this, true);
 
@@ -1145,6 +1154,16 @@ void WWebWidget::propagateSetEnabled(bool enabled)
     }
 }
 
+void WWebWidget::propagateSetVisible(bool visible)
+{
+  if (children_)
+    for (unsigned i = 0; i < children_->size(); ++i) {
+      WWidget *c = (*children_)[i];
+      if (!c->isHidden())
+	c->webWidget()->propagateSetVisible(visible);
+    }
+}
+
 bool WWebWidget::isDisabled() const
 {
   return flags_.test(BIT_DISABLED);
diff --git a/src/Wt/WWidget b/src/Wt/WWidget
index 54884bb..2bbf104 100644
--- a/src/Wt/WWidget
+++ b/src/Wt/WWidget
@@ -1154,6 +1154,8 @@ protected:
    */
   virtual void propagateSetEnabled(bool enabled) = 0;
 
+  virtual void propagateSetVisible(bool visible) = 0;
+
   void getDrop(const std::string sourceId, const std::string mimeType,
 	       WMouseEvent event);