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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/svg/SVGDocument.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/svg/SVGDocument.cpp')
-rw-r--r--dom/svg/SVGDocument.cpp179
1 files changed, 179 insertions, 0 deletions
diff --git a/dom/svg/SVGDocument.cpp b/dom/svg/SVGDocument.cpp
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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"
+
+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;
+}