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22f105c045
MozReview-Commit-ID: 6AOtRtB7Tvl
180 lines
5.8 KiB
C++
180 lines
5.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/SVGDocument.h"
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#include "mozilla/css/Loader.h"
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#include "nsICategoryManager.h"
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#include "nsISimpleEnumerator.h"
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#include "nsIStyleSheetService.h"
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#include "nsISupportsPrimitives.h"
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#include "nsLayoutStylesheetCache.h"
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#include "nsNetUtil.h"
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#include "nsServiceManagerUtils.h"
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#include "nsString.h"
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#include "nsLiteralString.h"
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#include "nsIDOMSVGElement.h"
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#include "mozilla/dom/Element.h"
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#include "nsSVGElement.h"
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#include "mozilla/StyleSheet.h"
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#include "mozilla/StyleSheetInlines.h"
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using namespace mozilla::css;
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using namespace mozilla::dom;
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namespace mozilla {
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namespace dom {
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//----------------------------------------------------------------------
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// Implementation
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//----------------------------------------------------------------------
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// nsISupports methods:
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nsresult
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SVGDocument::InsertChildAt(nsIContent* aKid, uint32_t aIndex, bool aNotify)
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{
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if (aKid->IsElement() && !aKid->IsSVGElement()) {
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// We can get here when well formed XML with a non-SVG root element is
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// served with the SVG MIME type, for example. In that case we need to load
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// the non-SVG UA sheets or else we can get bugs like bug 1016145. Note
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// that we have to do this _before_ the XMLDocument::InsertChildAt call,
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// since that can try to construct frames, and we need to have the sheets
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// loaded by then.
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EnsureNonSVGUserAgentStyleSheetsLoaded();
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}
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return XMLDocument::InsertChildAt(aKid, aIndex, aNotify);
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}
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nsresult
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SVGDocument::Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const
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{
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NS_ASSERTION(aNodeInfo->NodeInfoManager() == mNodeInfoManager,
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"Can't import this document into another document!");
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RefPtr<SVGDocument> clone = new SVGDocument();
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nsresult rv = CloneDocHelper(clone.get());
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NS_ENSURE_SUCCESS(rv, rv);
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return CallQueryInterface(clone.get(), aResult);
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}
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void
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SVGDocument::EnsureNonSVGUserAgentStyleSheetsLoaded()
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{
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if (mHasLoadedNonSVGUserAgentStyleSheets) {
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return;
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}
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if (IsStaticDocument()) {
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// If we're a static clone of a document, then
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// nsIDocument::CreateStaticClone will handle cloning the original
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// document's sheets, including the on-demand non-SVG UA sheets,
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// for us.
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return;
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}
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mHasLoadedNonSVGUserAgentStyleSheets = true;
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BeginUpdate(UPDATE_STYLE);
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if (IsBeingUsedAsImage()) {
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// nsDocumentViewer::CreateStyleSet skipped loading all user-agent/user
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// style sheets in this case, but we'll need B2G/Fennec's
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// content.css. We could load all the sheets registered with the
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// nsIStyleSheetService (and maybe we should) but most likely it isn't
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// desirable or necessary for foreignObject in SVG-as-an-image. Instead we
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// only load the "agent-style-sheets" that nsStyleSheetService::Init()
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// pulls in from the category manager. That keeps memory use of
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// SVG-as-an-image down.
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//
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// We do this before adding UASheet() etc. below because
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// EnsureOnDemandBuiltInUASheet prepends, and B2G/Fennec's
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// content.css must come after UASheet() etc.
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nsCOMPtr<nsICategoryManager> catMan =
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do_GetService(NS_CATEGORYMANAGER_CONTRACTID);
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if (catMan) {
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nsCOMPtr<nsISimpleEnumerator> sheets;
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catMan->EnumerateCategory("agent-style-sheets", getter_AddRefs(sheets));
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if (sheets) {
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bool hasMore;
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while (NS_SUCCEEDED(sheets->HasMoreElements(&hasMore)) && hasMore) {
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nsCOMPtr<nsISupports> sheet;
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if (NS_FAILED(sheets->GetNext(getter_AddRefs(sheet))))
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break;
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nsCOMPtr<nsISupportsCString> icStr = do_QueryInterface(sheet);
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MOZ_ASSERT(icStr,
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"category manager entries must be nsISupportsCStrings");
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nsAutoCString name;
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icStr->GetData(name);
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nsXPIDLCString spec;
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catMan->GetCategoryEntry("agent-style-sheets", name.get(),
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getter_Copies(spec));
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mozilla::css::Loader* cssLoader = CSSLoader();
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if (cssLoader->GetEnabled()) {
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nsCOMPtr<nsIURI> uri;
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NS_NewURI(getter_AddRefs(uri), spec);
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if (uri) {
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RefPtr<StyleSheet> sheet;
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cssLoader->LoadSheetSync(uri,
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mozilla::css::eAgentSheetFeatures,
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true, &sheet);
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if (sheet) {
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EnsureOnDemandBuiltInUASheet(sheet);
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}
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}
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}
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}
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}
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}
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}
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auto cache = nsLayoutStylesheetCache::For(GetStyleBackendType());
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StyleSheet* sheet = cache->NumberControlSheet();
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if (sheet) {
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// number-control.css can be behind a pref
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EnsureOnDemandBuiltInUASheet(sheet);
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}
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EnsureOnDemandBuiltInUASheet(cache->FormsSheet());
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EnsureOnDemandBuiltInUASheet(cache->CounterStylesSheet());
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EnsureOnDemandBuiltInUASheet(cache->HTMLSheet());
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if (nsLayoutUtils::ShouldUseNoFramesSheet(this)) {
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EnsureOnDemandBuiltInUASheet(cache->NoFramesSheet());
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}
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if (nsLayoutUtils::ShouldUseNoScriptSheet(this)) {
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EnsureOnDemandBuiltInUASheet(cache->NoScriptSheet());
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}
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EnsureOnDemandBuiltInUASheet(cache->UASheet());
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EndUpdate(UPDATE_STYLE);
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}
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} // namespace dom
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} // namespace mozilla
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////////////////////////////////////////////////////////////////////////
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// Exported creation functions
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nsresult
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NS_NewSVGDocument(nsIDocument** aInstancePtrResult)
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{
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RefPtr<SVGDocument> doc = new SVGDocument();
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nsresult rv = doc->Init();
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if (NS_FAILED(rv)) {
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return rv;
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}
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doc.forget(aInstancePtrResult);
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return rv;
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}
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