michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsIStyleRuleProcessor.h"
michael@0: #include "nsIDocument.h"
michael@0: #include "nsIContent.h"
michael@0: #include "nsIServiceManager.h"
michael@0: #include "nsXBLResourceLoader.h"
michael@0: #include "nsXBLPrototypeResources.h"
michael@0: #include "nsXBLPrototypeBinding.h"
michael@0: #include "nsIDocumentObserver.h"
michael@0: #include "mozilla/css/Loader.h"
michael@0: #include "nsIURI.h"
michael@0: #include "nsLayoutCID.h"
michael@0: #include "nsCSSRuleProcessor.h"
michael@0: #include "nsStyleSet.h"
michael@0: #include "mozilla/dom/URL.h"
michael@0: 
michael@0: using mozilla::dom::IsChromeURI;
michael@0: 
michael@0: nsXBLPrototypeResources::nsXBLPrototypeResources(nsXBLPrototypeBinding* aBinding)
michael@0: {
michael@0:   MOZ_COUNT_CTOR(nsXBLPrototypeResources);
michael@0: 
michael@0:   mLoader = new nsXBLResourceLoader(aBinding, this);
michael@0: }
michael@0: 
michael@0: nsXBLPrototypeResources::~nsXBLPrototypeResources()
michael@0: {
michael@0:   MOZ_COUNT_DTOR(nsXBLPrototypeResources);
michael@0:   if (mLoader) {
michael@0:     mLoader->mResources = nullptr;
michael@0:   }
michael@0: }
michael@0: 
michael@0: void
michael@0: nsXBLPrototypeResources::AddResource(nsIAtom* aResourceType, const nsAString& aSrc)
michael@0: {
michael@0:   if (mLoader)
michael@0:     mLoader->AddResource(aResourceType, aSrc);
michael@0: }
michael@0: 
michael@0: void
michael@0: nsXBLPrototypeResources::LoadResources(bool* aResult)
michael@0: {
michael@0:   if (mLoader)
michael@0:     mLoader->LoadResources(aResult);
michael@0:   else
michael@0:     *aResult = true; // All resources loaded.
michael@0: }
michael@0: 
michael@0: void
michael@0: nsXBLPrototypeResources::AddResourceListener(nsIContent* aBoundElement)
michael@0: {
michael@0:   if (mLoader)
michael@0:     mLoader->AddResourceListener(aBoundElement);
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsXBLPrototypeResources::FlushSkinSheets()
michael@0: {
michael@0:   if (mStyleSheetList.Length() == 0)
michael@0:     return NS_OK;
michael@0: 
michael@0:   nsCOMPtr<nsIDocument> doc =
michael@0:     mLoader->mBinding->XBLDocumentInfo()->GetDocument();
michael@0: 
michael@0:   // If doc is null, we're in the process of tearing things down, so just
michael@0:   // return without rebuilding anything.
michael@0:   if (!doc) {
michael@0:     return NS_OK;
michael@0:   }
michael@0: 
michael@0:   // We have scoped stylesheets.  Reload any chrome stylesheets we
michael@0:   // encounter.  (If they aren't skin sheets, it doesn't matter, since
michael@0:   // they'll still be in the chrome cache.
michael@0:   mRuleProcessor = nullptr;
michael@0: 
michael@0:   sheet_array_type oldSheets(mStyleSheetList);
michael@0:   mStyleSheetList.Clear();
michael@0: 
michael@0:   mozilla::css::Loader* cssLoader = doc->CSSLoader();
michael@0: 
michael@0:   for (sheet_array_type::size_type i = 0, count = oldSheets.Length();
michael@0:        i < count; ++i) {
michael@0:     nsCSSStyleSheet* oldSheet = oldSheets[i];
michael@0: 
michael@0:     nsIURI* uri = oldSheet->GetSheetURI();
michael@0: 
michael@0:     nsRefPtr<nsCSSStyleSheet> newSheet;
michael@0:     if (IsChromeURI(uri)) {
michael@0:       if (NS_FAILED(cssLoader->LoadSheetSync(uri, getter_AddRefs(newSheet))))
michael@0:         continue;
michael@0:     }
michael@0:     else {
michael@0:       newSheet = oldSheet;
michael@0:     }
michael@0: 
michael@0:     mStyleSheetList.AppendElement(newSheet);
michael@0:   }
michael@0:   mRuleProcessor = new nsCSSRuleProcessor(mStyleSheetList,
michael@0:                                           nsStyleSet::eDocSheet,
michael@0:                                           nullptr);
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsXBLPrototypeResources::Write(nsIObjectOutputStream* aStream)
michael@0: {
michael@0:   if (mLoader)
michael@0:     return mLoader->Write(aStream);
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsXBLPrototypeResources::Traverse(nsCycleCollectionTraversalCallback &cb) const
michael@0: {
michael@0:   NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "proto mResources mLoader");
michael@0:   cb.NoteXPCOMChild(mLoader);
michael@0: }
michael@0: 
michael@0: void
michael@0: nsXBLPrototypeResources::ClearLoader()
michael@0: {
michael@0:   mLoader = nullptr;
michael@0: }