gecko/dom/xml/nsXMLPrettyPrinter.cpp
Birunthan Mohanathas f30a0b63c8 Bug 946065 - Part 6: Move content/xml/ to dom/ and flatten subdirectories. r=jst
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rename : content/xml/content/src/CDATASection.cpp => dom/xml/CDATASection.cpp
rename : content/xml/content/src/CDATASection.h => dom/xml/CDATASection.h
rename : content/xml/content/src/ProcessingInstruction.cpp => dom/xml/ProcessingInstruction.cpp
rename : content/xml/content/src/ProcessingInstruction.h => dom/xml/ProcessingInstruction.h
rename : content/xml/document/src/XMLDocument.cpp => dom/xml/XMLDocument.cpp
rename : content/xml/document/src/XMLDocument.h => dom/xml/XMLDocument.h
rename : content/xml/content/src/XMLStylesheetProcessingInstruction.cpp => dom/xml/XMLStylesheetProcessingInstruction.cpp
rename : content/xml/content/src/XMLStylesheetProcessingInstruction.h => dom/xml/XMLStylesheetProcessingInstruction.h
rename : content/xml/document/crashtests/136896-1.xml => dom/xml/crashtests/136896-1.xml
rename : content/xml/document/crashtests/185285-1.xml => dom/xml/crashtests/185285-1.xml
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rename : content/xml/content/crashtest/803586.xhtml => dom/xml/crashtests/803586.xhtml
rename : content/xml/document/crashtests/994740-1.xhtml => dom/xml/crashtests/994740-1.xhtml
rename : content/xml/document/crashtests/crashtests.list => dom/xml/crashtests/crashtests.list
rename : content/xml/document/crashtests/tree.gif => dom/xml/crashtests/tree.gif
rename : content/xml/content/src/htmlmathml-f.ent => dom/xml/htmlmathml-f.ent
rename : content/xml/content/src/moz.build => dom/xml/moz.build
rename : content/xml/document/public/nsIXMLContentSink.h => dom/xml/nsIXMLContentSink.h
rename : content/xml/document/src/nsXMLContentSink.cpp => dom/xml/nsXMLContentSink.cpp
rename : content/xml/document/src/nsXMLContentSink.h => dom/xml/nsXMLContentSink.h
rename : content/xml/content/src/nsXMLElement.cpp => dom/xml/nsXMLElement.cpp
rename : content/xml/content/src/nsXMLElement.h => dom/xml/nsXMLElement.h
rename : content/xml/document/src/nsXMLFragmentContentSink.cpp => dom/xml/nsXMLFragmentContentSink.cpp
rename : content/xml/document/src/nsXMLPrettyPrinter.cpp => dom/xml/nsXMLPrettyPrinter.cpp
rename : content/xml/document/src/nsXMLPrettyPrinter.h => dom/xml/nsXMLPrettyPrinter.h
rename : content/xml/document/resources/XMLMonoPrint.css => dom/xml/resources/XMLMonoPrint.css
rename : content/xml/document/resources/XMLPrettyPrint.css => dom/xml/resources/XMLPrettyPrint.css
rename : content/xml/document/resources/XMLPrettyPrint.xml => dom/xml/resources/XMLPrettyPrint.xml
rename : content/xml/document/resources/XMLPrettyPrint.xsl => dom/xml/resources/XMLPrettyPrint.xsl
rename : content/xml/document/resources/jar.mn => dom/xml/resources/jar.mn
rename : content/xml/document/resources/moz.build => dom/xml/resources/moz.build
rename : content/xml/document/test/file_bug293347.xml => dom/xml/test/file_bug293347.xml
rename : content/xml/document/test/file_bug293347xslt.xml => dom/xml/test/file_bug293347xslt.xml
rename : content/xml/document/test/mochitest.ini => dom/xml/test/mochitest.ini
rename : content/xml/document/test/moz.build => dom/xml/test/moz.build
rename : content/xml/tests/books/bethlehem.gif => dom/xml/test/old/books/bethlehem.gif
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rename : content/xml/tests/books/books.js => dom/xml/test/old/books/books.js
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rename : content/xml/tests/xlink/manual.xml => dom/xml/test/old/xlink/manual.xml
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rename : content/xml/document/test/test_viewport.xhtml => dom/xml/test/test_viewport.xhtml
2014-07-25 14:15:35 -07:00

267 lines
8.6 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "nsXMLPrettyPrinter.h"
#include "nsContentUtils.h"
#include "nsIDOMCSSStyleDeclaration.h"
#include "nsIDOMDocumentXBL.h"
#include "nsIObserver.h"
#include "nsIXSLTProcessor.h"
#include "nsSyncLoadService.h"
#include "nsPIDOMWindow.h"
#include "nsIDOMElement.h"
#include "nsIDOMDocument.h"
#include "nsIServiceManager.h"
#include "nsNetUtil.h"
#include "mozilla/dom/Element.h"
#include "nsIDOMDocumentFragment.h"
#include "nsBindingManager.h"
#include "nsXBLService.h"
#include "nsIScriptSecurityManager.h"
#include "mozilla/Preferences.h"
#include "nsIDocument.h"
#include "nsVariant.h"
#include "nsIDOMCustomEvent.h"
using namespace mozilla;
using namespace mozilla::dom;
NS_IMPL_ISUPPORTS(nsXMLPrettyPrinter,
nsIDocumentObserver,
nsIMutationObserver)
nsXMLPrettyPrinter::nsXMLPrettyPrinter() : mDocument(nullptr),
mUnhookPending(false)
{
}
nsXMLPrettyPrinter::~nsXMLPrettyPrinter()
{
NS_ASSERTION(!mDocument, "we shouldn't be referencing the document still");
}
nsresult
nsXMLPrettyPrinter::PrettyPrint(nsIDocument* aDocument,
bool* aDidPrettyPrint)
{
*aDidPrettyPrint = false;
// Check for iframe with display:none. Such iframes don't have presshells
if (!aDocument->GetShell()) {
return NS_OK;
}
// check if we're in an invisible iframe
nsPIDOMWindow *internalWin = aDocument->GetWindow();
nsCOMPtr<nsIDOMElement> frameElem;
if (internalWin) {
internalWin->GetFrameElement(getter_AddRefs(frameElem));
}
if (frameElem) {
nsCOMPtr<nsIDOMCSSStyleDeclaration> computedStyle;
nsCOMPtr<nsIDOMDocument> frameOwnerDoc;
frameElem->GetOwnerDocument(getter_AddRefs(frameOwnerDoc));
if (frameOwnerDoc) {
nsCOMPtr<nsIDOMWindow> window;
frameOwnerDoc->GetDefaultView(getter_AddRefs(window));
if (window) {
window->GetComputedStyle(frameElem,
EmptyString(),
getter_AddRefs(computedStyle));
}
}
if (computedStyle) {
nsAutoString visibility;
computedStyle->GetPropertyValue(NS_LITERAL_STRING("visibility"),
visibility);
if (!visibility.EqualsLiteral("visible")) {
return NS_OK;
}
}
}
// check the pref
if (!Preferences::GetBool("layout.xml.prettyprint", true)) {
return NS_OK;
}
// Ok, we should prettyprint. Let's do it!
*aDidPrettyPrint = true;
nsresult rv = NS_OK;
// Load the XSLT
nsCOMPtr<nsIURI> xslUri;
rv = NS_NewURI(getter_AddRefs(xslUri),
NS_LITERAL_CSTRING("chrome://global/content/xml/XMLPrettyPrint.xsl"));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMDocument> xslDocument;
rv = nsSyncLoadService::LoadDocument(xslUri, nullptr, nullptr, true,
getter_AddRefs(xslDocument));
NS_ENSURE_SUCCESS(rv, rv);
// Transform the document
nsCOMPtr<nsIXSLTProcessor> transformer =
do_CreateInstance("@mozilla.org/document-transformer;1?type=xslt", &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = transformer->ImportStylesheet(xslDocument);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMDocumentFragment> resultFragment;
nsCOMPtr<nsIDOMDocument> sourceDocument = do_QueryInterface(aDocument);
rv = transformer->TransformToFragment(sourceDocument, sourceDocument,
getter_AddRefs(resultFragment));
NS_ENSURE_SUCCESS(rv, rv);
//
// Apply the prettprint XBL binding.
//
// We take some shortcuts here. In particular, we don't bother invoking the
// contstructor (since the binding has no constructor), and we don't bother
// calling LoadBindingDocument because it's a chrome:// URI and thus will get
// sync loaded no matter what.
//
// Grab the XBL service.
nsXBLService* xblService = nsXBLService::GetInstance();
NS_ENSURE_TRUE(xblService, NS_ERROR_NOT_AVAILABLE);
// Compute the binding URI.
nsCOMPtr<nsIURI> bindingUri;
rv = NS_NewURI(getter_AddRefs(bindingUri),
NS_LITERAL_STRING("chrome://global/content/xml/XMLPrettyPrint.xml#prettyprint"));
NS_ENSURE_SUCCESS(rv, rv);
// Compute the bound element.
nsCOMPtr<nsIContent> rootCont = aDocument->GetRootElement();
NS_ENSURE_TRUE(rootCont, NS_ERROR_UNEXPECTED);
// Grab the system principal.
nsCOMPtr<nsIPrincipal> sysPrincipal;
nsContentUtils::GetSecurityManager()->
GetSystemPrincipal(getter_AddRefs(sysPrincipal));
// Load the bindings.
nsRefPtr<nsXBLBinding> unused;
bool ignored;
rv = xblService->LoadBindings(rootCont, bindingUri, sysPrincipal,
getter_AddRefs(unused), &ignored);
NS_ENSURE_SUCCESS(rv, rv);
// Fire an event at the bound element to pass it |resultFragment|.
nsCOMPtr<nsIDOMEvent> domEvent;
rv = NS_NewDOMCustomEvent(getter_AddRefs(domEvent), rootCont,
nullptr, nullptr);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMCustomEvent> customEvent = do_QueryInterface(domEvent);
MOZ_ASSERT(customEvent);
nsCOMPtr<nsIWritableVariant> resultFragmentVariant = new nsVariant();
rv = resultFragmentVariant->SetAsISupports(resultFragment);
MOZ_ASSERT(NS_SUCCEEDED(rv));
rv = customEvent->InitCustomEvent(NS_LITERAL_STRING("prettyprint-dom-created"),
/* bubbles = */ false, /* cancelable = */ false,
/* detail = */ resultFragmentVariant);
NS_ENSURE_SUCCESS(rv, rv);
customEvent->SetTrusted(true);
bool dummy;
rv = rootCont->DispatchEvent(domEvent, &dummy);
NS_ENSURE_SUCCESS(rv, rv);
// Observe the document so we know when to switch to "normal" view
aDocument->AddObserver(this);
mDocument = aDocument;
NS_ADDREF_THIS();
return NS_OK;
}
void
nsXMLPrettyPrinter::MaybeUnhook(nsIContent* aContent)
{
// If there either aContent is null (the document-node was modified) or
// there isn't a binding parent we know it's non-anonymous content.
if ((!aContent || !aContent->GetBindingParent()) && !mUnhookPending) {
// Can't blindly to mUnhookPending after AddScriptRunner,
// since AddScriptRunner _could_ in theory run us
// synchronously
mUnhookPending = true;
nsContentUtils::AddScriptRunner(
NS_NewRunnableMethod(this, &nsXMLPrettyPrinter::Unhook));
}
}
void
nsXMLPrettyPrinter::Unhook()
{
mDocument->RemoveObserver(this);
nsCOMPtr<Element> element = mDocument->GetDocumentElement();
if (element) {
mDocument->BindingManager()->ClearBinding(element);
}
mDocument = nullptr;
NS_RELEASE_THIS();
}
void
nsXMLPrettyPrinter::AttributeChanged(nsIDocument* aDocument,
Element* aElement,
int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType)
{
MaybeUnhook(aElement);
}
void
nsXMLPrettyPrinter::ContentAppended(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aFirstNewContent,
int32_t aNewIndexInContainer)
{
MaybeUnhook(aContainer);
}
void
nsXMLPrettyPrinter::ContentInserted(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t aIndexInContainer)
{
MaybeUnhook(aContainer);
}
void
nsXMLPrettyPrinter::ContentRemoved(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t aIndexInContainer,
nsIContent* aPreviousSibling)
{
MaybeUnhook(aContainer);
}
void
nsXMLPrettyPrinter::NodeWillBeDestroyed(const nsINode* aNode)
{
mDocument = nullptr;
NS_RELEASE_THIS();
}
nsresult NS_NewXMLPrettyPrinter(nsXMLPrettyPrinter** aPrinter)
{
*aPrinter = new nsXMLPrettyPrinter;
NS_ADDREF(*aPrinter);
return NS_OK;
}