changes to support printing.

view/public/nsIViewManager.h

@@ -354,6 +354,11 @@ public:
    * @return error status
    */
   NS_IMETHOD EnableRefresh(void) = 0;
+
+  //XXX this needs to take parameters to tell
+  //it what part of the document to display, not just the
+  //whole thing. MMP
+  NS_IMETHOD Display(void) = 0;
 };
 
 //when the refresh happens, should it be double buffered?

view/src/nsView.cpp

@@ -332,7 +332,15 @@ NS_IMETHODIMP nsView :: Paint(nsIRenderingContext& rc, const nsRect& rect,
 
           kid->GetWidget(widget);
           hasWidget = (widget != nsnull);
-          NS_IF_RELEASE(widget);
+          if (nsnull != widget)
+          {
+            void *thing;
+            thing = widget->GetNativeData(NS_NATIVE_WIDGET);
+            NS_RELEASE(widget);
+
+            if (nsnull == thing)
+              hasWidget = PR_FALSE;
+          }
           if (!hasWidget)
           {
             nsRect kidRect;
@@ -1138,6 +1146,12 @@ NS_IMETHODIMP nsView :: CreateWidget(const nsIID &aWindowIID,
   trect *= scale;
 
   if (NS_OK == LoadWidget(aWindowIID))
+  {
+    PRBool usewidgets;
+
+    dx->SupportsNativeWidgets(usewidgets);
+
+    if (PR_TRUE == usewidgets)
     {
       if (aNative)
         mWindow->Create(aNative, trect, ::HandleEvent, dx, nsnull, nsnull, aWidgetInitData);
@@ -1149,6 +1163,7 @@ NS_IMETHODIMP nsView :: CreateWidget(const nsIID &aWindowIID,
         NS_IF_RELEASE(parent);
       }
     }
+  }
 
   //make sure visibility state is accurate
 

view/src/nsViewManager.cpp

@@ -517,8 +517,10 @@ NS_IMETHODIMP nsViewManager :: UpdateView(nsIView *aView, const nsRect &aRect, P
     // Get the parent view
     widgetView->GetParent(widgetView);
   } while (nsnull != widgetView);
-  NS_ASSERTION(nsnull != widgetView, "no widget");
+//  NS_ASSERTION(nsnull != widgetView, "no widget");  this assertion not valid for printing...MMP
 
+  if (nsnull != widgetView)
+  {
     // Convert damage rect to coordinate space of containing view with
     // a widget
     // XXX Consolidate this code with the code above...
@@ -554,6 +556,7 @@ NS_IMETHODIMP nsViewManager :: UpdateView(nsIView *aView, const nsRect &aRect, P
       if (deltams > (1000 / (PRInt32)mFrameRate))
         Composite();
     }
+  }
 
   return NS_OK;
 }
@@ -1311,3 +1314,40 @@ NS_IMETHODIMP nsViewManager :: EnableRefresh(void)
   return NS_OK;
 }
 
+NS_IMETHODIMP nsViewManager :: Display(void)
+{
+  nsRect              wrect;
+  nsIRenderingContext *localcx = nsnull;
+  nsDrawingSurface    ds = nsnull;
+  nsRect              trect;
+
+  if (PR_FALSE == mRefreshEnabled)
+    return NS_OK;
+
+  NS_ASSERTION(!(PR_TRUE == mPainting), "recursive painting not permitted");
+
+  mPainting = PR_TRUE;
+
+  mContext->CreateRenderingContext(localcx);
+
+  //couldn't get rendering context. this is ok if at startup
+  if (nsnull == localcx)
+  {
+    return NS_ERROR_FAILURE;
+  }
+
+  mRootView->GetBounds(trect);
+
+  PRBool  result;
+
+  localcx->SetClipRect(trect, nsClipCombine_kReplace, result);
+
+  // Paint the view. The clipping rect was set above set don't clip again.
+  mRootView->Paint(*localcx, trect, NS_VIEW_FLAG_CLIP_SET, result);
+
+  NS_RELEASE(localcx);
+
+  mPainting = PR_FALSE;
+
+  return NS_OK;
+}

view/src/nsViewManager.h

@@ -110,6 +110,8 @@ public:
 
   nsDrawingSurface GetDrawingSurface(nsIRenderingContext &aContext, nsRect& aBounds);
 
+  NS_IMETHOD Display(void);
+
 private:
   virtual ~nsViewManager();
   nsIRenderingContext *CreateRenderingContext(nsIView &aView);

webshell/public/nsIContentViewer.h

@@ -68,6 +68,8 @@ public:
   virtual void Show() = 0;
 
   virtual void Hide() = 0;
+
+  NS_IMETHOD Print(void) = 0;
 };
 
 #endif /* nsIContentViewer_h___ */

webshell/src/nsDocumentViewer.cpp

@@ -29,6 +29,7 @@
 #include "nsIPresShell.h"
 #include "nsIStyleSet.h"
 #include "nsIStyleSheet.h"
+#include "nsIFrame.h"
 
 #include "nsIScriptContextOwner.h"
 #include "nsIScriptGlobalObject.h"
@@ -37,10 +38,15 @@
 
 #include "nsViewsCID.h"
 #include "nsWidgetsCID.h"
+#include "nsGfxCIID.h"
 #include "nsIDeviceContext.h"
+#include "nsIDeviceContextSpec.h"
+#include "nsIDeviceContextSpecFactory.h"
 #include "nsIViewManager.h"
 #include "nsIView.h"
 
+#include "nsIPref.h"
+
 #include "nsIURL.h"
 
 class DocumentViewerImpl : public nsIDocumentViewer
@@ -74,6 +80,7 @@ public:
   virtual void Move(PRInt32 aX, PRInt32 aY);
   virtual void Show();
   virtual void Hide();
+  NS_IMETHOD Print(void);
 
 
   // nsIDocumentViewer interface...
@@ -108,7 +115,6 @@ protected:
   nsIPresContext* mPresContext;
   nsIPresShell*   mPresShell;
   nsIStyleSheet*  mUAStyleSheet;
-
 };
 
 //Class IDs
@@ -434,6 +440,102 @@ void DocumentViewerImpl::Hide()
 }
 
 
+static NS_DEFINE_IID(kIDeviceContextSpecFactoryIID, NS_IDEVICE_CONTEXT_SPEC_FACTORY_IID);
+static NS_DEFINE_IID(kDeviceContextSpecFactoryCID, NS_DEVICE_CONTEXT_SPEC_FACTORY_CID);
+
+NS_IMETHODIMP DocumentViewerImpl :: Print(void)
+{
+  nsIDeviceContextSpecFactory *factory = nsnull;
+
+  nsRepository::CreateInstance(kDeviceContextSpecFactoryCID, nsnull,
+                               kIDeviceContextSpecFactoryIID, (void **)&factory);
+
+  if (nsnull != factory)
+  {
+    nsIDeviceContextSpec *devspec = nsnull;
+    nsIDeviceContext *dx = nsnull;
+    nsIDeviceContext *newdx = nsnull;
+
+    factory->CreateDeviceContextSpec(nsnull, devspec, PR_FALSE);
+
+    dx = mPresContext->GetDeviceContext();
+
+    if (NS_OK == dx->GetDeviceContextFor(devspec, newdx))
+    {
+      nsIPresShell *ps;
+      nsIPresContext *cx;
+      nsIStyleSet *ss;
+      nsIPref *prefs;
+      nsIViewManager *vm;
+      PRInt32 width, height;
+      nsIView *view;
+
+      NS_RELEASE(devspec);
+
+      newdx->GetDeviceSurfaceDimensions(width, height);
+
+      NS_NewGalleyContext(&cx);
+      mPresContext->GetPrefs(prefs);
+      cx->Init(newdx, prefs);
+
+      CreateStyleSet(mDocument, &ss);
+
+      NS_NewPresShell(&ps);
+
+      {
+        nsresult rv;
+
+        rv = nsRepository::CreateInstance(kViewManagerCID, 
+                                          nsnull, 
+                                          kIViewManagerIID, 
+                                          (void **)&vm);
+
+        if ((NS_OK != rv) || (NS_OK != vm->Init(newdx))) {
+          NS_ASSERTION(PR_FALSE, "can't get good VM");
+        }
+
+        nsRect tbounds = nsRect(0, 0, width, height);
+
+        // Create a child window of the parent that is our "root view/window"
+        // Create a view
+        rv = nsRepository::CreateInstance(kViewCID, 
+                                          nsnull, 
+                                          kIViewIID, 
+                                          (void **)&view);
+        if ((NS_OK != rv) || (NS_OK != view->Init(vm, 
+                                                  tbounds,
+                                                  nsnull))) {
+          NS_ASSERTION(PR_FALSE, "can't get good view");
+        }
+
+        // Setup hierarchical relationship in view manager
+        vm->SetRootView(view);
+      }
+
+      ps->Init(mDocument, cx, vm, ss);
+
+      //lay it out...
+      ps->InitialReflow(width, height);
+
+      newdx->BeginDocument();
+      newdx->BeginPage();
+      vm->Display();
+      newdx->EndPage();
+      newdx->EndDocument();
+
+      NS_RELEASE(ps);
+      NS_RELEASE(vm);
+      NS_RELEASE(ss);
+      NS_RELEASE(newdx);
+      NS_RELEASE(prefs);
+    }
+
+    NS_RELEASE(dx);
+    NS_RELEASE(factory);
+  }
+
+  return NS_OK;
+}
 
 void DocumentViewerImpl::ForceRefresh()
 {

webshell/src/nsPluginViewer.cpp

@@ -134,6 +134,7 @@ public:
   virtual void Move(PRInt32 aX, PRInt32 aY);
   virtual void Show();
   virtual void Hide();
+  NS_IMETHOD Print(void);
 
   ~PluginViewerImpl();
 
@@ -430,6 +431,11 @@ PluginViewerImpl::Hide()
   }
 }
 
+NS_IMETHODIMP PluginViewerImpl :: Print(void)
+{
+  return NS_OK;
+}
+
 void
 PluginViewerImpl::ForceRefresh()
 {

webshell/tests/viewer/nsBrowserWindow.cpp

@@ -444,6 +444,10 @@ nsBrowserWindow::DispatchMenuItem(PRInt32 aID)
   case VIEWER_THREE_COLUMN:
     ShowPrintPreview(aID);
     break;
+
+  case VIEWER_PRINT:
+    DoPrint();
+    break;
   }
 
   return nsEventStatus_eIgnore;
@@ -1908,6 +1912,19 @@ nsBrowserWindow::ShowPrintPreview(PRInt32 aID)
   }
 }
 
+void nsBrowserWindow::DoPrint(void)
+{
+  nsIContentViewer *viewer = nsnull;
+
+  mWebShell->GetContentViewer(viewer);
+
+  if (nsnull != viewer)
+  {
+    viewer->Print();
+    NS_RELEASE(viewer);
+  }
+}
+
 //----------------------------------------------------------------------
 
 void

webshell/tests/viewer/nsBrowserWindow.h

@@ -138,6 +138,7 @@ public:
   NS_IMETHOD ForceRefresh();
 
   void ShowPrintPreview(PRInt32 aID);
+  void DoPrint(void);
 
 #ifdef NS_DEBUG
   void DumpContent(FILE *out = stdout);

webshell/tests/viewer/nsSetupRegistry.cpp

@@ -97,6 +97,8 @@ static NS_DEFINE_IID(kCFontMetricsIID, NS_FONT_METRICS_CID);
 static NS_DEFINE_IID(kCImageIID, NS_IMAGE_CID);
 static NS_DEFINE_IID(kCRegionIID, NS_REGION_CID);
 static NS_DEFINE_IID(kCBlenderIID, NS_BLENDER_CID);
+static NS_DEFINE_IID(kCDeviceContextSpecCID, NS_DEVICE_CONTEXT_SPEC_CID);
+static NS_DEFINE_IID(kCDeviceContextSpecFactoryCID, NS_DEVICE_CONTEXT_SPEC_FACTORY_CID);
 static NS_DEFINE_IID(kCViewManagerCID, NS_VIEW_MANAGER_CID);
 static NS_DEFINE_IID(kCViewCID, NS_VIEW_CID);
 static NS_DEFINE_IID(kCScrollingViewCID, NS_SCROLLING_VIEW_CID);
@@ -140,6 +142,8 @@ NS_SetupRegistry()
   nsRepository::RegisterFactory(kCImageIID, GFXWIN_DLL, PR_FALSE, PR_FALSE);
   nsRepository::RegisterFactory(kCRegionIID, GFXWIN_DLL, PR_FALSE, PR_FALSE);
   nsRepository::RegisterFactory(kCBlenderIID, GFXWIN_DLL, PR_FALSE, PR_FALSE);
+  nsRepository::RegisterFactory(kCDeviceContextSpecCID, GFXWIN_DLL, PR_FALSE, PR_FALSE);
+  nsRepository::RegisterFactory(kCDeviceContextSpecFactoryCID, GFXWIN_DLL, PR_FALSE, PR_FALSE);
   nsRepository::RegisterFactory(kCViewManagerCID, VIEW_DLL, PR_FALSE, PR_FALSE);
   nsRepository::RegisterFactory(kCViewCID, VIEW_DLL, PR_FALSE, PR_FALSE);
   nsRepository::RegisterFactory(kCScrollingViewCID, VIEW_DLL, PR_FALSE, PR_FALSE);

webshell/tests/viewer/resources.h

@@ -63,6 +63,8 @@
 #define VIEWER_TWO_COLUMN       40041
 #define VIEWER_THREE_COLUMN     40042
 
+#define VIEWER_PRINT            40050
+
 #define JS_CONSOLE              40100
 #define EDITOR_MODE             40120
 #define VIEWER_PREFS            40130

webshell/tests/viewer/viewer.rc

@@ -48,6 +48,7 @@ VIEWER MENU DISCARDABLE
       MENUITEM "Two Column", VIEWER_TWO_COLUMN
       MENUITEM "Three Column", VIEWER_THREE_COLUMN
     }
+    MENUITEM "Print", VIEWER_PRINT
     MENUITEM "&Exit", VIEWER_EXIT
   }
   POPUP "&Edit"