Added Update() member function which forces a synchronous repaint of any

dirty regions of the window

widget/public/nsIWidget.h

@@ -374,7 +374,7 @@ class nsIWidget : public nsISupports {
      * Invalidate the widget and repaint it.
      *
      * @param aIsSynchronouse PR_TRUE then repaint synchronously. If PR_FALSE repaint later.
-     *
+     * @see #Update()
      */
 
     NS_IMETHOD Invalidate(PRBool aIsSynchronous) = 0;
@@ -383,11 +383,18 @@ class nsIWidget : public nsISupports {
      * Invalidate a specified rect for a widget and repaints it.
      *
      * @param aIsSynchronouse PR_TRUE then repaint synchronously. If PR_FALSE repaint later.
-     *
+     * @see #Update()
      */
 
     NS_IMETHOD Invalidate(const nsRect & aRect, PRBool aIsSynchronous) = 0;
 
+    /**
+     * Force a synchronous repaint of the window if there are dirty rects.
+     *
+     * @see Invalidate()
+     */
+
+     NS_IMETHOD Update() = 0;
 
     /**
      * Adds a mouse listener to this widget

widget/src/mac/nsWindow.cpp

@@ -623,6 +623,16 @@ GrafPtr	curport;
   
 }
 
+//-------------------------------------------------------------------------
+//
+// Force a synchronous repaint of the window
+//
+//-------------------------------------------------------------------------
+NS_IMETHODIMP nsWindow::Update()
+{
+  return NS_OK;
+}
+
 //-------------------------------------------------------------------------
 //
 // Return some native data according to aDataType

widget/src/mac/nsWindow.h

@@ -82,6 +82,7 @@ public:
     NS_IMETHOD            	SetFont(const nsFont &aFont);
     NS_IMETHOD            	Invalidate(PRBool aIsSynchronous);
     NS_IMETHOD							Invalidate(const nsRect &aRect,PRBool aIsSynchronous);
+    NS_IMETHOD              Update();
     virtual void*           GetNativeData(PRUint32 aDataType);
     NS_IMETHOD            	SetColorMap(nsColorMap *aColorMap);
     NS_IMETHOD            	Scroll(PRInt32 aDx, PRInt32 aDy, nsRect *aClipRect);

widget/src/motif/nsWindow.cpp

@@ -1009,6 +1009,16 @@ NS_METHOD nsWindow::Invalidate(const nsRect & aRect, PRBool aIsSynchronous)
   
 }
 
+//-------------------------------------------------------------------------
+//
+// Force a synchronous repaint of the window
+//
+//-------------------------------------------------------------------------
+NS_IMETHODIMP nsWindow::Update()
+{
+  return NS_OK;
+}
+
 //-------------------------------------------------------------------------
 //
 // Return some native data according to aDataType

widget/src/motif/nsWindow.h

@@ -108,6 +108,7 @@ public:
     NS_IMETHOD            SetCursor(nsCursor aCursor);
     NS_IMETHOD            Invalidate(PRBool aIsSynchronous);
     NS_IMETHOD            Invalidate(const nsRect &aRect, PRBool aIsSynchronous);
+    NS_IMETHOD            Update();
     virtual void*           GetNativeData(PRUint32 aDataType);
     virtual nsIRenderingContext* GetRenderingContext();
     NS_IMETHOD            SetColorMap(nsColorMap *aColorMap);

widget/src/windows/nsWindow.cpp

@@ -1050,7 +1050,16 @@ NS_METHOD nsWindow::Invalidate(const nsRect & aRect, PRBool aIsSynchronous)
   return NS_OK;
 }
 
-
+//-------------------------------------------------------------------------
+//
+// Force a synchronous repaint of the window
+//
+//-------------------------------------------------------------------------
+NS_IMETHODIMP nsWindow::Update()
+{
+  VERIFY(::UpdateWindow(mWnd));
+  return NS_OK;
+}
 
 //-------------------------------------------------------------------------
 //

widget/src/windows/nsWindow.h

@@ -104,6 +104,7 @@ public:
     NS_IMETHOD              SetCursor(nsCursor aCursor);
     NS_IMETHOD              Invalidate(PRBool aIsSynchronous);
     NS_IMETHOD              Invalidate(const nsRect & aRect, PRBool aIsSynchronous);
+    NS_IMETHOD              Update();
     virtual void*           GetNativeData(PRUint32 aDataType);
     NS_IMETHOD              SetColorMap(nsColorMap *aColorMap);
     NS_IMETHOD              Scroll(PRInt32 aDx, PRInt32 aDy, nsRect *aClipRect);