The Tor Browser: dom/xbl/nsXBLPrototypeResources.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "nsIStyleRuleProcessor.h"

     7 #include "nsIDocument.h"

     8 #include "nsIContent.h"

     9 #include "nsIServiceManager.h"

    10 #include "nsXBLResourceLoader.h"

    11 #include "nsXBLPrototypeResources.h"

    12 #include "nsXBLPrototypeBinding.h"

    13 #include "nsIDocumentObserver.h"

    14 #include "mozilla/css/Loader.h"

    15 #include "nsIURI.h"

    16 #include "nsLayoutCID.h"

    17 #include "nsCSSRuleProcessor.h"

    18 #include "nsStyleSet.h"

    19 #include "mozilla/dom/URL.h"

    21 using mozilla::dom::IsChromeURI;

    23 nsXBLPrototypeResources::nsXBLPrototypeResources(nsXBLPrototypeBinding* aBinding)

    24 {

    25   MOZ_COUNT_CTOR(nsXBLPrototypeResources);

    27   mLoader = new nsXBLResourceLoader(aBinding, this);

    28 }

    30 nsXBLPrototypeResources::~nsXBLPrototypeResources()

    31 {

    32   MOZ_COUNT_DTOR(nsXBLPrototypeResources);

    33   if (mLoader) {

    34     mLoader->mResources = nullptr;

    35   }

    36 }

    38 void

    39 nsXBLPrototypeResources::AddResource(nsIAtom* aResourceType, const nsAString& aSrc)

    40 {

    41   if (mLoader)

    42     mLoader->AddResource(aResourceType, aSrc);

    43 }

    45 void

    46 nsXBLPrototypeResources::LoadResources(bool* aResult)

    47 {

    48   if (mLoader)

    49     mLoader->LoadResources(aResult);

    50   else

    51     *aResult = true; // All resources loaded.

    52 }

    54 void

    55 nsXBLPrototypeResources::AddResourceListener(nsIContent* aBoundElement)

    56 {

    57   if (mLoader)

    58     mLoader->AddResourceListener(aBoundElement);

    59 }

    61 nsresult

    62 nsXBLPrototypeResources::FlushSkinSheets()

    63 {

    64   if (mStyleSheetList.Length() == 0)

    65     return NS_OK;

    67   nsCOMPtr<nsIDocument> doc =

    68     mLoader->mBinding->XBLDocumentInfo()->GetDocument();

    70   // If doc is null, we're in the process of tearing things down, so just

    71   // return without rebuilding anything.

    72   if (!doc) {

    73     return NS_OK;

    74   }

    76   // We have scoped stylesheets.  Reload any chrome stylesheets we

    77   // encounter.  (If they aren't skin sheets, it doesn't matter, since

    78   // they'll still be in the chrome cache.

    79   mRuleProcessor = nullptr;

    81   sheet_array_type oldSheets(mStyleSheetList);

    82   mStyleSheetList.Clear();

    84   mozilla::css::Loader* cssLoader = doc->CSSLoader();

    86   for (sheet_array_type::size_type i = 0, count = oldSheets.Length();

    87        i < count; ++i) {

    88     nsCSSStyleSheet* oldSheet = oldSheets[i];

    90     nsIURI* uri = oldSheet->GetSheetURI();

    92     nsRefPtr<nsCSSStyleSheet> newSheet;

    93     if (IsChromeURI(uri)) {

    94       if (NS_FAILED(cssLoader->LoadSheetSync(uri, getter_AddRefs(newSheet))))

    95         continue;

    96     }

    97     else {

    98       newSheet = oldSheet;

    99     }

   101     mStyleSheetList.AppendElement(newSheet);

   102   }

   103   mRuleProcessor = new nsCSSRuleProcessor(mStyleSheetList,

   104                                           nsStyleSet::eDocSheet,

   105                                           nullptr);

   107   return NS_OK;

   108 }

   110 nsresult

   111 nsXBLPrototypeResources::Write(nsIObjectOutputStream* aStream)

   112 {

   113   if (mLoader)

   114     return mLoader->Write(aStream);

   115   return NS_OK;

   116 }

   118 void

   119 nsXBLPrototypeResources::Traverse(nsCycleCollectionTraversalCallback &cb) const

   120 {

   121   NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "proto mResources mLoader");

   122   cb.NoteXPCOMChild(mLoader);

   123 }

   125 void

   126 nsXBLPrototypeResources::ClearLoader()

   127 {

   128   mLoader = nullptr;

   129 }

The Tor Browser / file revision