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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 "mozilla/dom/SVGDocument.h"
#include "mozilla/css/Loader.h"
#include "nsICategoryManager.h"
#include "nsISimpleEnumerator.h"
#include "nsIStyleSheetService.h"
#include "nsISupportsPrimitives.h"
#include "nsLayoutStylesheetCache.h"
#include "nsNetUtil.h"
#include "nsServiceManagerUtils.h"
#include "nsString.h"
#include "nsLiteralString.h"
#include "nsIDOMSVGElement.h"
#include "mozilla/dom/Element.h"
#include "nsSVGElement.h"
#include "mozilla/StyleSheet.h"
#include "mozilla/StyleSheetInlines.h"
#include "nsContentUtils.h"
#include "nsLayoutUtils.h"
using namespace mozilla::css;
using namespace mozilla::dom;
namespace mozilla {
namespace dom {
//----------------------------------------------------------------------
// Implementation
//----------------------------------------------------------------------
// nsISupports methods:
nsresult
SVGDocument::InsertChildAt(nsIContent* aKid, uint32_t aIndex, bool aNotify)
{
if (aKid->IsElement() && !aKid->IsSVGElement()) {
// We can get here when well formed XML with a non-SVG root element is
// served with the SVG MIME type, for example. In that case we need to load
// the non-SVG UA sheets or else we can get bugs like bug 1016145. Note
// that we have to do this _before_ the XMLDocument::InsertChildAt call,
// since that can try to construct frames, and we need to have the sheets
// loaded by then.
EnsureNonSVGUserAgentStyleSheetsLoaded();
}
return XMLDocument::InsertChildAt(aKid, aIndex, aNotify);
}
nsresult
SVGDocument::Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const
{
NS_ASSERTION(aNodeInfo->NodeInfoManager() == mNodeInfoManager,
"Can't import this document into another document!");
RefPtr<SVGDocument> clone = new SVGDocument();
nsresult rv = CloneDocHelper(clone.get());
NS_ENSURE_SUCCESS(rv, rv);
return CallQueryInterface(clone.get(), aResult);
}
void
SVGDocument::EnsureNonSVGUserAgentStyleSheetsLoaded()
{
if (mHasLoadedNonSVGUserAgentStyleSheets) {
return;
}
if (IsStaticDocument()) {
// If we're a static clone of a document, then
// nsIDocument::CreateStaticClone will handle cloning the original
// document's sheets, including the on-demand non-SVG UA sheets,
// for us.
return;
}
mHasLoadedNonSVGUserAgentStyleSheets = true;
BeginUpdate(UPDATE_STYLE);
if (IsBeingUsedAsImage()) {
// nsDocumentViewer::CreateStyleSet skipped loading all user-agent/user
// style sheets in this case, but we'll need B2G/Fennec's
// content.css. We could load all the sheets registered with the
// nsIStyleSheetService (and maybe we should) but most likely it isn't
// desirable or necessary for foreignObject in SVG-as-an-image. Instead we
// only load the "agent-style-sheets" that nsStyleSheetService::Init()
// pulls in from the category manager. That keeps memory use of
// SVG-as-an-image down.
//
// We do this before adding UASheet() etc. below because
// EnsureOnDemandBuiltInUASheet prepends, and B2G/Fennec's
// content.css must come after UASheet() etc.
nsCOMPtr<nsICategoryManager> catMan =
do_GetService(NS_CATEGORYMANAGER_CONTRACTID);
if (catMan) {
nsCOMPtr<nsISimpleEnumerator> sheets;
catMan->EnumerateCategory("agent-style-sheets", getter_AddRefs(sheets));
if (sheets) {
bool hasMore;
while (NS_SUCCEEDED(sheets->HasMoreElements(&hasMore)) && hasMore) {
nsCOMPtr<nsISupports> sheet;
if (NS_FAILED(sheets->GetNext(getter_AddRefs(sheet))))
break;
nsCOMPtr<nsISupportsCString> icStr = do_QueryInterface(sheet);
MOZ_ASSERT(icStr,
"category manager entries must be nsISupportsCStrings");
nsAutoCString name;
icStr->GetData(name);
nsXPIDLCString spec;
catMan->GetCategoryEntry("agent-style-sheets", name.get(),
getter_Copies(spec));
mozilla::css::Loader* cssLoader = CSSLoader();
if (cssLoader->GetEnabled()) {
nsCOMPtr<nsIURI> uri;
NS_NewURI(getter_AddRefs(uri), spec);
if (uri) {
RefPtr<StyleSheet> sheet;
cssLoader->LoadSheetSync(uri,
mozilla::css::eAgentSheetFeatures,
true, &sheet);
if (sheet) {
EnsureOnDemandBuiltInUASheet(sheet);
}
}
}
}
}
}
}
auto cache = nsLayoutStylesheetCache::For(GetStyleBackendType());
StyleSheet* sheet = cache->NumberControlSheet();
if (sheet) {
// number-control.css can be behind a pref
EnsureOnDemandBuiltInUASheet(sheet);
}
EnsureOnDemandBuiltInUASheet(cache->FormsSheet());
EnsureOnDemandBuiltInUASheet(cache->CounterStylesSheet());
EnsureOnDemandBuiltInUASheet(cache->HTMLSheet());
if (nsLayoutUtils::ShouldUseNoFramesSheet(this)) {
EnsureOnDemandBuiltInUASheet(cache->NoFramesSheet());
}
if (nsLayoutUtils::ShouldUseNoScriptSheet(this)) {
EnsureOnDemandBuiltInUASheet(cache->NoScriptSheet());
}
EnsureOnDemandBuiltInUASheet(cache->UASheet());
EndUpdate(UPDATE_STYLE);
}
} // namespace dom
} // namespace mozilla
////////////////////////////////////////////////////////////////////////
// Exported creation functions
nsresult
NS_NewSVGDocument(nsIDocument** aInstancePtrResult)
{
RefPtr<SVGDocument> doc = new SVGDocument();
nsresult rv = doc->Init();
if (NS_FAILED(rv)) {
return rv;
}
doc.forget(aInstancePtrResult);
return rv;
}
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