gecko-dev/layout/printing/nsPrintObject.cpp

102 lines
3.3 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
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*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* ***** END LICENSE BLOCK ***** */
#include "nsPrintObject.h"
#include "nsIContentViewer.h"
#include "nsIDOMDocument.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();
mPresShell->Destroy();
}
mPresShell = nsnull;
mViewManager = nsnull;
}