/* -*- 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" 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; }