Rought support for the print-preview window

git-svn-id: svn://10.0.0.236/trunk@12942 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/webshell/tests/viewer/nsBrowserWindow.cpp

@@ -394,6 +394,12 @@ nsBrowserWindow::DispatchMenuItem(PRInt32 aID)
   case EDITOR_MODE:
     DoEditorMode(mWebShell);
     break;
+
+  case VIEWER_ONE_COLUMN:
+  case VIEWER_TWO_COLUMN:
+  case VIEWER_THREE_COLUMN:
+    ShowPrintPreview(aID);
+    break;
   }
 
   return nsEventStatus_eIgnore;
@@ -820,6 +826,8 @@ nsBrowserWindow::nsBrowserWindow()
 
 nsBrowserWindow::~nsBrowserWindow()
 {
+  NS_IF_RELEASE(mPrefs);
+  NS_IF_RELEASE(mAppShell);
 }
 
 NS_IMPL_ADDREF(nsBrowserWindow)
@@ -872,10 +880,14 @@ nsBrowserWindow::Init(nsIAppShell* aAppShell,
                       PRBool aAllowPlugins)
 {
   mChromeMask = aChromeMask;
-  mAppShell = aAppShell;
-  mPrefs = aPrefs;
   mAllowPlugins = aAllowPlugins;
 
+  mAppShell = aAppShell;
+  NS_IF_ADDREF(mAppShell);
+
+  mPrefs = aPrefs;
+  NS_IF_ADDREF(mPrefs);
+
   // Create top level window
   nsresult rv = nsRepository::CreateInstance(kWindowCID, nsnull, kIWidgetIID,
                                              (void**)&mWindow);
@@ -933,6 +945,83 @@ nsBrowserWindow::Init(nsIAppShell* aAppShell,
   return NS_OK;
 }
 
+nsresult
+nsBrowserWindow::Init(nsIAppShell* aAppShell,
+                      nsIPref* aPrefs,
+                      const nsRect& aBounds,
+                      PRUint32 aChromeMask,
+                      PRBool aAllowPlugins,
+                      nsIDocumentViewer* aDocumentViewer,
+                      nsIPresContext* aPresContext)
+{
+  mChromeMask = aChromeMask;
+  mAppShell = aAppShell;
+  mPrefs = aPrefs;
+  mAllowPlugins = aAllowPlugins;
+
+  // Create top level window
+  nsresult rv = nsRepository::CreateInstance(kWindowCID, nsnull, kIWidgetIID,
+                                             (void**)&mWindow);
+  if (NS_OK != rv) {
+    return rv;
+  }
+  nsRect r(0, 0, aBounds.width, aBounds.height);
+  mWindow->Create((nsIWidget*)NULL, r, HandleBrowserEvent,
+                  nsnull, aAppShell);
+  mWindow->GetBounds(r);
+
+  // Create web shell
+  rv = nsRepository::CreateInstance(kWebShellCID, nsnull,
+                                    kIWebShellIID,
+                                    (void**)&mWebShell);
+  if (NS_OK != rv) {
+    return rv;
+  }
+  r.x = r.y = 0;
+  nsRect ws = r;
+  rv = mWebShell->Init(mWindow->GetNativeData(NS_NATIVE_WIDGET), 
+                       r.x, r.y, r.width, r.height,
+                       nsScrollPreference_kAuto, aAllowPlugins);
+  mWebShell->SetContainer((nsIWebShellContainer*) this);
+  mWebShell->SetObserver((nsIStreamObserver*)this);
+  mWebShell->SetPrefs(aPrefs);
+
+  if (NS_CHROME_MENU_BAR_ON & aChromeMask) {
+    rv = CreateMenuBar(r.width);
+    if (NS_OK != rv) {
+      return rv;
+    }
+    mWindow->GetBounds(r);
+    r.x = r.y = 0;
+  }
+
+  if (NS_CHROME_TOOL_BAR_ON & aChromeMask) {
+    rv = CreateToolBar(r.width);
+    if (NS_OK != rv) {
+      return rv;
+    }
+  }
+
+  if (NS_CHROME_STATUS_BAR_ON & aChromeMask) {
+    rv = CreateStatusBar(r.width);
+    if (NS_OK != rv) {
+      return rv;
+    }
+  }
+
+  // Now lay it all out
+  Layout(r.width, r.height);
+
+  // Create a document viewer and bind it to the webshell
+  nsIDocumentViewer* docv;
+  aDocumentViewer->CreateDocumentViewerUsing(aPresContext, docv);
+  mWebShell->Embed(docv, "duh", nsnull);
+  mWebShell->Show();
+  NS_RELEASE(docv);
+
+  return NS_OK;
+}
+
 // XXX This sort of thing should be in a resource
 #define TOOL_BAR_FONT      "Helvetica"
 #define TOOL_BAR_FONT_SIZE 12
@@ -1714,6 +1803,44 @@ nsBrowserWindow::DoCopy()
 
 //----------------------------------------------------------------------
 
+void
+nsBrowserWindow::ShowPrintPreview(PRInt32 aID)
+{
+  nsIContentViewer* cv = nsnull;
+  if (nsnull != mWebShell) {
+    if ((NS_OK == mWebShell->GetContentViewer(cv)) && (nsnull != cv)) {
+      nsIDocumentViewer* docv = nsnull;
+      if (NS_OK == cv->QueryInterface(kIDocumentViewerIID, (void**)&docv)) {
+        nsIPresContext* printContext;
+        if (NS_OK == NS_NewPrintPreviewContext(&printContext)) {
+          // Prepare new printContext for print-preview
+          nsIDeviceContext* dc;
+          nsIPresContext* presContext;
+          docv->GetPresContext(presContext);
+          dc = presContext->GetDeviceContext();
+          printContext->Init(dc, mPrefs);
+          NS_RELEASE(presContext);
+          NS_RELEASE(dc);
+
+          // Make a window using that content viewer
+          nsBrowserWindow* bw = new nsNativeBrowserWindow();
+          bw->Init(mAppShell, mPrefs, nsRect(0, 0, 600, 400),
+                   NS_CHROME_MENU_BAR_ON, PR_TRUE,
+                   docv, printContext);
+          bw->Show();
+
+          NS_RELEASE(printContext);
+        }
+        NS_RELEASE(docv);
+      }
+      NS_RELEASE(cv);
+    }
+  }
+
+}
+
+//----------------------------------------------------------------------
+
 void
 nsBrowserWindow::DoJSConsole()
 {

mozilla/webshell/tests/viewer/nsBrowserWindow.h

@@ -37,6 +37,8 @@ class nsITextWidget;
 class nsIButton;
 class nsIThrobber;
 class nsViewerApp;
+class nsIDocumentViewer;
+class nsIPresContext;
 class nsIPresShell;
 class nsIPref;
 
@@ -133,6 +135,8 @@ public:
   void DoSelectAll();
   void ForceRefresh();
 
+  void ShowPrintPreview(PRInt32 aID);
+
 #ifdef NS_DEBUG
   void DumpContent(FILE *out = stdout);
   void DumpFrames(FILE *out = stdout, nsString *aFilter = nsnull);
@@ -154,6 +158,15 @@ public:
 
   nsEventStatus ProcessDialogEvent(nsGUIEvent *aEvent);
 
+  // Initialize a second view on a different browser windows document
+  // viewer.
+  nsresult Init(nsIAppShell* aAppShell,
+                nsIPref* aPrefs,
+                const nsRect& aBounds,
+                PRUint32 aChromeMask,
+                PRBool aAllowPlugins,
+                nsIDocumentViewer* aDocViewer,
+                nsIPresContext* aPresContext);
 
   void SetApp(nsViewerApp* aApp) {
     mApp = aApp;