mirror of
https://github.com/mozilla/gecko-dev.git
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145 lines
4.9 KiB
C++
145 lines
4.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsPrintObject.h"
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#include "nsIContentViewer.h"
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#include "nsIDOMDocument.h"
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#include "nsContentUtils.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsPIDOMWindow.h"
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#include "nsGkAtoms.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIDocShellTreeItem.h"
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#include "nsIBaseWindow.h"
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//---------------------------------------------------
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//-- nsPrintObject Class Impl
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//---------------------------------------------------
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nsPrintObject::nsPrintObject() :
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mContent(nsnull), mFrameType(eFrame), mParent(nsnull),
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mHasBeenPrinted(false), mDontPrint(true), mPrintAsIs(false),
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mSharedPresShell(false), mInvisible(false), mDidCreateDocShell(false),
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mShrinkRatio(1.0), mZoomRatio(1.0)
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{
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MOZ_COUNT_CTOR(nsPrintObject);
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}
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nsPrintObject::~nsPrintObject()
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{
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MOZ_COUNT_DTOR(nsPrintObject);
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for (PRUint32 i=0;i<mKids.Length();i++) {
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nsPrintObject* po = mKids[i];
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delete po;
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}
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DestroyPresentation();
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if (mDidCreateDocShell && mDocShell) {
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nsCOMPtr<nsIBaseWindow> baseWin(do_QueryInterface(mDocShell));
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if (baseWin) {
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baseWin->Destroy();
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}
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}
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mDocShell = nsnull;
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mTreeOwner = nsnull; // mTreeOwner must be released after mDocShell;
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}
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//------------------------------------------------------------------
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nsresult
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nsPrintObject::Init(nsIDocShell* aDocShell, nsIDOMDocument* aDoc,
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bool aPrintPreview)
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{
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mPrintPreview = aPrintPreview;
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if (mPrintPreview || mParent) {
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mDocShell = aDocShell;
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} else {
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mTreeOwner = do_GetInterface(aDocShell);
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nsCOMPtr<nsIDocShellTreeItem> item = do_QueryInterface(aDocShell);
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PRInt32 itemType = 0;
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item->GetItemType(&itemType);
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// Create a container docshell for printing.
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mDocShell = do_CreateInstance("@mozilla.org/docshell;1");
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NS_ENSURE_TRUE(mDocShell, NS_ERROR_OUT_OF_MEMORY);
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mDidCreateDocShell = true;
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nsCOMPtr<nsIDocShellTreeItem> newItem = do_QueryInterface(mDocShell);
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newItem->SetItemType(itemType);
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newItem->SetTreeOwner(mTreeOwner);
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}
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NS_ENSURE_TRUE(mDocShell, NS_ERROR_FAILURE);
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nsCOMPtr<nsIDOMDocument> dummy = do_GetInterface(mDocShell);
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nsCOMPtr<nsIContentViewer> viewer;
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mDocShell->GetContentViewer(getter_AddRefs(viewer));
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NS_ENSURE_STATE(viewer);
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nsCOMPtr<nsIDocument> doc = do_QueryInterface(aDoc);
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NS_ENSURE_STATE(doc);
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if (mParent) {
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nsCOMPtr<nsPIDOMWindow> window = doc->GetWindow();
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if (window) {
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mContent = do_QueryInterface(window->GetFrameElementInternal());
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}
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mDocument = doc;
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return NS_OK;
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}
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mDocument = doc->CreateStaticClone(mDocShell);
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nsCOMPtr<nsIDOMDocument> clonedDOMDoc = do_QueryInterface(mDocument);
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NS_ENSURE_STATE(clonedDOMDoc);
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viewer->SetDOMDocument(clonedDOMDoc);
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return NS_OK;
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}
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//------------------------------------------------------------------
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// Resets PO by destroying the presentation
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void
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nsPrintObject::DestroyPresentation()
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{
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mPresContext = nsnull;
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if (mPresShell) {
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mPresShell->EndObservingDocument();
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nsAutoScriptBlocker scriptBlocker;
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mPresShell->Destroy();
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}
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mPresShell = nsnull;
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mViewManager = nsnull;
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}
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