tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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ScriptedNotificationObserver.cpp (2478B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
      2 *
      3 * This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "ScriptedNotificationObserver.h"
      8 #include "imgIScriptedNotificationObserver.h"
      9 #include "nsCycleCollectionParticipant.h"
     10 #include "nsContentUtils.h"  // for nsAutoScriptBlocker
     11 
     12 namespace mozilla {
     13 namespace image {
     14 
     15 NS_IMPL_CYCLE_COLLECTION(ScriptedNotificationObserver, mInner)
     16 
     17 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ScriptedNotificationObserver)
     18  NS_INTERFACE_MAP_ENTRY(imgINotificationObserver)
     19  NS_INTERFACE_MAP_ENTRY(nsISupports)
     20 NS_INTERFACE_MAP_END
     21 
     22 NS_IMPL_CYCLE_COLLECTING_ADDREF(ScriptedNotificationObserver)
     23 NS_IMPL_CYCLE_COLLECTING_RELEASE(ScriptedNotificationObserver)
     24 
     25 ScriptedNotificationObserver::ScriptedNotificationObserver(
     26    imgIScriptedNotificationObserver* aInner)
     27    : mInner(aInner) {}
     28 
     29 void ScriptedNotificationObserver::Notify(imgIRequest* aRequest, int32_t aType,
     30                                          const nsIntRect* /*aUnused*/) {
     31  // For now, we block (other) scripts from running to preserve the historical
     32  // behavior from when ScriptedNotificationObserver::Notify was called as part
     33  // of the observers list in nsImageLoadingContent::Notify. Now each
     34  // ScriptedNotificationObserver has its own imgRequestProxy and thus gets
     35  // Notify called directly by imagelib.
     36  nsAutoScriptBlocker scriptBlocker;
     37 
     38  if (aType == imgINotificationObserver::SIZE_AVAILABLE) {
     39    mInner->SizeAvailable(aRequest);
     40    return;
     41  }
     42  if (aType == imgINotificationObserver::FRAME_UPDATE) {
     43    mInner->FrameUpdate(aRequest);
     44    return;
     45  }
     46  if (aType == imgINotificationObserver::FRAME_COMPLETE) {
     47    mInner->FrameComplete(aRequest);
     48    return;
     49  }
     50  if (aType == imgINotificationObserver::DECODE_COMPLETE) {
     51    mInner->DecodeComplete(aRequest);
     52    return;
     53  }
     54  if (aType == imgINotificationObserver::LOAD_COMPLETE) {
     55    mInner->LoadComplete(aRequest);
     56    return;
     57  }
     58  if (aType == imgINotificationObserver::DISCARD) {
     59    mInner->Discard(aRequest);
     60    return;
     61  }
     62  if (aType == imgINotificationObserver::IS_ANIMATED) {
     63    mInner->IsAnimated(aRequest);
     64    return;
     65  }
     66  if (aType == imgINotificationObserver::HAS_TRANSPARENCY) {
     67    mInner->HasTransparency(aRequest);
     68    return;
     69  }
     70 }
     71 
     72 }  // namespace image
     73 }  // namespace mozilla