1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/printing/nsPrintObject.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,110 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsPrintObject.h"
1.10 +#include "nsIContentViewer.h"
1.11 +#include "nsIDOMDocument.h"
1.12 +#include "nsContentUtils.h" // for nsAutoScriptBlocker
1.13 +#include "nsIInterfaceRequestorUtils.h"
1.14 +#include "nsPIDOMWindow.h"
1.15 +#include "nsGkAtoms.h"
1.16 +#include "nsComponentManagerUtils.h"
1.17 +#include "nsIDocShellTreeItem.h"
1.18 +#include "nsIBaseWindow.h"
1.19 +#include "nsIDocument.h"
1.20 +
1.21 +//---------------------------------------------------
1.22 +//-- nsPrintObject Class Impl
1.23 +//---------------------------------------------------
1.24 +nsPrintObject::nsPrintObject() :
1.25 + mContent(nullptr), mFrameType(eFrame), mParent(nullptr),
1.26 + mHasBeenPrinted(false), mDontPrint(true), mPrintAsIs(false),
1.27 + mInvisible(false), mDidCreateDocShell(false),
1.28 + mShrinkRatio(1.0), mZoomRatio(1.0)
1.29 +{
1.30 + MOZ_COUNT_CTOR(nsPrintObject);
1.31 +}
1.32 +
1.33 +
1.34 +nsPrintObject::~nsPrintObject()
1.35 +{
1.36 + MOZ_COUNT_DTOR(nsPrintObject);
1.37 + for (uint32_t i=0;i<mKids.Length();i++) {
1.38 + nsPrintObject* po = mKids[i];
1.39 + delete po;
1.40 + }
1.41 +
1.42 + DestroyPresentation();
1.43 + if (mDidCreateDocShell && mDocShell) {
1.44 + nsCOMPtr<nsIBaseWindow> baseWin(do_QueryInterface(mDocShell));
1.45 + if (baseWin) {
1.46 + baseWin->Destroy();
1.47 + }
1.48 + }
1.49 + mDocShell = nullptr;
1.50 + mTreeOwner = nullptr; // mTreeOwner must be released after mDocShell;
1.51 +}
1.52 +
1.53 +//------------------------------------------------------------------
1.54 +nsresult
1.55 +nsPrintObject::Init(nsIDocShell* aDocShell, nsIDOMDocument* aDoc,
1.56 + bool aPrintPreview)
1.57 +{
1.58 + mPrintPreview = aPrintPreview;
1.59 +
1.60 + if (mPrintPreview || mParent) {
1.61 + mDocShell = aDocShell;
1.62 + } else {
1.63 + mTreeOwner = do_GetInterface(aDocShell);
1.64 + // Create a container docshell for printing.
1.65 + mDocShell = do_CreateInstance("@mozilla.org/docshell;1");
1.66 + NS_ENSURE_TRUE(mDocShell, NS_ERROR_OUT_OF_MEMORY);
1.67 + mDidCreateDocShell = true;
1.68 + mDocShell->SetItemType(aDocShell->ItemType());
1.69 + mDocShell->SetTreeOwner(mTreeOwner);
1.70 + }
1.71 + NS_ENSURE_TRUE(mDocShell, NS_ERROR_FAILURE);
1.72 +
1.73 + nsCOMPtr<nsIDOMDocument> dummy = do_GetInterface(mDocShell);
1.74 + nsCOMPtr<nsIContentViewer> viewer;
1.75 + mDocShell->GetContentViewer(getter_AddRefs(viewer));
1.76 + NS_ENSURE_STATE(viewer);
1.77 +
1.78 + nsCOMPtr<nsIDocument> doc = do_QueryInterface(aDoc);
1.79 + NS_ENSURE_STATE(doc);
1.80 +
1.81 + if (mParent) {
1.82 + nsCOMPtr<nsPIDOMWindow> window = doc->GetWindow();
1.83 + if (window) {
1.84 + mContent = do_QueryInterface(window->GetFrameElementInternal());
1.85 + }
1.86 + mDocument = doc;
1.87 + return NS_OK;
1.88 + }
1.89 +
1.90 + mDocument = doc->CreateStaticClone(mDocShell);
1.91 + nsCOMPtr<nsIDOMDocument> clonedDOMDoc = do_QueryInterface(mDocument);
1.92 + NS_ENSURE_STATE(clonedDOMDoc);
1.93 +
1.94 + viewer->SetDOMDocument(clonedDOMDoc);
1.95 + return NS_OK;
1.96 +}
1.97 +
1.98 +//------------------------------------------------------------------
1.99 +// Resets PO by destroying the presentation
1.100 +void
1.101 +nsPrintObject::DestroyPresentation()
1.102 +{
1.103 + if (mPresShell) {
1.104 + mPresShell->EndObservingDocument();
1.105 + nsAutoScriptBlocker scriptBlocker;
1.106 + nsCOMPtr<nsIPresShell> shell = mPresShell;
1.107 + mPresShell = nullptr;
1.108 + shell->Destroy();
1.109 + }
1.110 + mPresContext = nullptr;
1.111 + mViewManager = nullptr;
1.112 +}
1.113 +
