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 * for the specific language governing rights and limitations under the
 * License.
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 * The Original Code is mozilla.org code.
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 * The Initial Developer of the Original Code is
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 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
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 *
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 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#include "nsPrintObject.h"
#include "nsIContentViewer.h"
#include "nsIDOMDocument.h"
#include "nsContentUtils.h"

//---------------------------------------------------
//-- nsPrintObject Class Impl
//---------------------------------------------------
nsPrintObject::nsPrintObject() :
  mContent(nsnull), mFrameType(eFrame), mParent(nsnull),
  mHasBeenPrinted(PR_FALSE), mDontPrint(PR_TRUE), mPrintAsIs(PR_FALSE),
  mSharedPresShell(PR_FALSE), mInvisible(PR_FALSE),
  mShrinkRatio(1.0), mZoomRatio(1.0)
{
}


nsPrintObject::~nsPrintObject()
{
  for (PRUint32 i=0;i<mKids.Length();i++) {
    nsPrintObject* po = mKids[i];
    delete po;
  }

  DestroyPresentation();
}

//------------------------------------------------------------------
// Resets PO by destroying the presentation
nsresult 
nsPrintObject::Init(nsIDocShell* aDocShell)
{
  mDocShell = aDocShell;
  NS_ENSURE_TRUE(mDocShell, NS_ERROR_FAILURE);
  
  nsresult rv;
  nsCOMPtr<nsIContentViewer> viewer;
  rv = mDocShell->GetContentViewer(getter_AddRefs(viewer));
  NS_ENSURE_SUCCESS(rv, rv);
  
  nsCOMPtr<nsIDOMDocument> doc;
  viewer->GetDOMDocument(getter_AddRefs(doc));
  NS_ENSURE_SUCCESS(rv, rv);
  
  mDocument = do_QueryInterface(doc);
  NS_ENSURE_TRUE(mDocument, NS_ERROR_FAILURE);

  return NS_OK;
}

//------------------------------------------------------------------
// Resets PO by destroying the presentation
void 
nsPrintObject::DestroyPresentation()
{
  mWindow      = nsnull;
  mPresContext = nsnull;
  if (mPresShell) {
    mPresShell->EndObservingDocument();
    nsAutoScriptBlocker scriptBlocker;
    mPresShell->Destroy();
  }
  mPresShell   = nsnull;
  mViewManager = nsnull;
}