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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsPrintObject.h"
#include "nsIContentViewer.h"
#include "nsContentUtils.h" // for nsAutoScriptBlocker
#include "nsIInterfaceRequestorUtils.h"
#include "nsPIDOMWindow.h"
#include "nsPresContext.h"
#include "nsGkAtoms.h"
#include "nsComponentManagerUtils.h"
#include "nsIBaseWindow.h"
#include "nsDocShell.h"
#include "mozilla/PresShell.h"
#include "mozilla/dom/BrowsingContext.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/Element.h"
using namespace mozilla;
using mozilla::dom::BrowsingContext;
using mozilla::dom::Document;
using mozilla::dom::Element;
using mozilla::dom::Selection;
//---------------------------------------------------
//-- nsPrintObject Class Impl
//---------------------------------------------------
nsPrintObject::nsPrintObject()
: mContent(nullptr),
mFrameType(eFrame),
mParent(nullptr),
mHasBeenPrinted(false),
mInvisible(false),
mDidCreateDocShell(false),
mShrinkRatio(1.0),
mZoomRatio(1.0) {
MOZ_COUNT_CTOR(nsPrintObject);
}
nsPrintObject::~nsPrintObject() {
MOZ_COUNT_DTOR(nsPrintObject);
DestroyPresentation();
if (mDidCreateDocShell && mDocShell) {
RefPtr<BrowsingContext> bc(mDocShell->GetBrowsingContext());
nsDocShell::Cast(mDocShell)->Destroy();
bc->Detach();
}
mDocShell = nullptr;
mTreeOwner = nullptr; // mTreeOwner must be released after mDocShell;
}
//------------------------------------------------------------------
nsresult nsPrintObject::InitAsRootObject(nsIDocShell* aDocShell, Document* aDoc,
bool aForPrintPreview) {
NS_ENSURE_STATE(aDocShell);
NS_ENSURE_STATE(aDoc);
MOZ_ASSERT(aDoc->IsStaticDocument());
mDocShell = aDocShell;
mDocument = aDoc;
// Ensure the document has no presentation.
DestroyPresentation();
return NS_OK;
}
nsresult nsPrintObject::InitAsNestedObject(nsIDocShell* aDocShell,
Document* aDoc,
nsPrintObject* aParent) {
NS_ENSURE_STATE(aDocShell);
NS_ENSURE_STATE(aDoc);
mParent = aParent;
mDocShell = aDocShell;
mDocument = aDoc;
nsCOMPtr<nsPIDOMWindowOuter> window = aDoc->GetWindow();
mContent = window->GetFrameElementInternal();
// "frame" elements not in a frameset context should be treated
// as iframes
if (mContent->IsHTMLElement(nsGkAtoms::frame) &&
mParent->mFrameType == eFrameSet) {
mFrameType = eFrame;
} else {
// Assume something iframe-like, i.e. iframe, object, or embed
mFrameType = eIFrame;
}
return NS_OK;
}
//------------------------------------------------------------------
// Resets PO by destroying the presentation
void nsPrintObject::DestroyPresentation() {
if (mDocument) {
if (RefPtr<PresShell> ps = mDocument->GetPresShell()) {
MOZ_DIAGNOSTIC_ASSERT(!mPresShell || ps == mPresShell);
mPresShell = nullptr;
nsAutoScriptBlocker scriptBlocker;
ps->EndObservingDocument();
ps->Destroy();
}
}
mPresShell = nullptr;
mPresContext = nullptr;
mViewManager = nullptr;
}
void nsPrintObject::EnablePrinting(bool aEnable) {
mPrintingIsEnabled = aEnable;
for (const UniquePtr<nsPrintObject>& kid : mKids) {
kid->EnablePrinting(aEnable);
}
}
bool nsPrintObject::HasSelection() const {
return mDocument && mDocument->GetProperty(nsGkAtoms::printselectionranges);
}
void nsPrintObject::EnablePrintingSelectionOnly() {
mPrintingIsEnabled = HasSelection();
for (const UniquePtr<nsPrintObject>& kid : mKids) {
kid->EnablePrintingSelectionOnly();
}
}
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