Implemented the window.print() method

dom/public/base/nsIDOMWindow.h

@@ -108,6 +108,8 @@ public:
 
   NS_IMETHOD    Stop()=0;
 
+  NS_IMETHOD    Print()=0;
+
   NS_IMETHOD    MoveTo(PRInt32 aXPos, PRInt32 aYPos)=0;
 
   NS_IMETHOD    MoveBy(PRInt32 aXDif, PRInt32 aYDif)=0;
@@ -174,6 +176,7 @@ public:
   NS_IMETHOD    Forward();  \
   NS_IMETHOD    Home();  \
   NS_IMETHOD    Stop();  \
+  NS_IMETHOD    Print();  \
   NS_IMETHOD    MoveTo(PRInt32 aXPos, PRInt32 aYPos);  \
   NS_IMETHOD    MoveBy(PRInt32 aXDif, PRInt32 aYDif);  \
   NS_IMETHOD    ResizeTo(PRInt32 aWidth, PRInt32 aHeight);  \
@@ -230,6 +233,7 @@ public:
   NS_IMETHOD    Forward() { return _to##Forward(); }  \
   NS_IMETHOD    Home() { return _to##Home(); }  \
   NS_IMETHOD    Stop() { return _to##Stop(); }  \
+  NS_IMETHOD    Print() { return _to##Print(); }  \
   NS_IMETHOD    MoveTo(PRInt32 aXPos, PRInt32 aYPos) { return _to##MoveTo(aXPos, aYPos); }  \
   NS_IMETHOD    MoveBy(PRInt32 aXDif, PRInt32 aYDif) { return _to##MoveBy(aXDif, aYDif); }  \
   NS_IMETHOD    ResizeTo(PRInt32 aWidth, PRInt32 aHeight) { return _to##ResizeTo(aWidth, aHeight); }  \

dom/public/idl/base/Window.idl

@@ -32,6 +32,7 @@
         void  forward();
         void  home();
         void  stop();
+        void  print();
 
         void  moveTo(in long xPos, in long yPos);
         void  moveBy(in long xDif, in long yDif);

dom/src/base/nsGlobalWindow.cpp

@@ -51,6 +51,7 @@
 #include "nsCRT.h"
 #include "nsRect.h"
 #include "nsINetSupport.h"
+#include "nsIContentViewer.h"
 
 #include "jsapi.h"
 
@@ -756,6 +757,21 @@ GlobalWindowImpl::Stop()
   return NS_OK;
 }
 
+NS_IMETHODIMP
+GlobalWindowImpl::Print()
+{
+  nsIContentViewer *viewer = nsnull;
+
+  mWebShell->GetContentViewer(&viewer);
+
+  if (nsnull != viewer)
+  {
+    viewer->Print();
+    NS_RELEASE(viewer);
+  }
+  return NS_OK;
+}
+
 NS_IMETHODIMP
 GlobalWindowImpl::MoveTo(PRInt32 aXPos, PRInt32 aYPos)
 {

dom/src/base/nsGlobalWindow.h

@@ -119,6 +119,7 @@ public:
   NS_IMETHOD    Back();
   NS_IMETHOD    Home();
   NS_IMETHOD    Stop();
+  NS_IMETHOD    Print();
   NS_IMETHOD    MoveTo(PRInt32 aXPos, PRInt32 aYPos);
   NS_IMETHOD    MoveBy(PRInt32 aXDif, PRInt32 aYDif);
   NS_IMETHOD    ResizeTo(PRInt32 aWidth, PRInt32 aHeight);

dom/src/base/nsJSWindow.cpp

@@ -857,6 +857,39 @@ WindowStop(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
 }
 
 
+//
+// Native method Print
+//
+PR_STATIC_CALLBACK(JSBool)
+WindowPrint(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
+{
+  nsIDOMWindow *nativeThis = (nsIDOMWindow*)JS_GetPrivate(cx, obj);
+  JSBool rBool = JS_FALSE;
+
+  *rval = JSVAL_NULL;
+
+  // If there's no private data, this must be the prototype, so ignore
+  if (nsnull == nativeThis) {
+    return JS_TRUE;
+  }
+
+  if (argc >= 0) {
+
+    if (NS_OK != nativeThis->Print()) {
+      return JS_FALSE;
+    }
+
+    *rval = JSVAL_VOID;
+  }
+  else {
+    JS_ReportError(cx, "Function print requires 0 parameters");
+    return JS_FALSE;
+  }
+
+  return JS_TRUE;
+}
+
+
 //
 // Native method MoveTo
 //
@@ -1452,6 +1485,7 @@ static JSFunctionSpec WindowMethods[] =
   {"forward",          WindowForward,     0},
   {"home",          WindowHome,     0},
   {"stop",          WindowStop,     0},
+  {"print",          WindowPrint,     0},
   {"moveTo",          WindowMoveTo,     2},
   {"moveBy",          WindowMoveBy,     2},
   {"resizeTo",          WindowResizeTo,     2},