parser/html/nsHtml5SpeculativeLoad.cpp
author Kyle Huey <khuey@kylehuey.com>
Sun, 11 Nov 2012 10:28:38 -0800
changeset 116834 658d1cf59d3817414e3549c19f0f279de750d48d
parent 110404 3d9424eb6eb473cfd14309fd635ff7d6e29322c2
permissions -rw-r--r--
Bug 798491: Add an option to stick all chrome JSMs/JS components in the same compartment. r=mrbkap,philikon a=bajaj

/* 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 "nsHtml5SpeculativeLoad.h"
#include "nsHtml5TreeOpExecutor.h"

nsHtml5SpeculativeLoad::nsHtml5SpeculativeLoad()
#ifdef DEBUG
 : mOpCode(eSpeculativeLoadUninitialized)
#endif
{
  MOZ_COUNT_CTOR(nsHtml5SpeculativeLoad);
}

nsHtml5SpeculativeLoad::~nsHtml5SpeculativeLoad()
{
  MOZ_COUNT_DTOR(nsHtml5SpeculativeLoad);
  NS_ASSERTION(mOpCode != eSpeculativeLoadUninitialized,
               "Uninitialized speculative load.");
}

void
nsHtml5SpeculativeLoad::Perform(nsHtml5TreeOpExecutor* aExecutor)
{
  switch (mOpCode) {
    case eSpeculativeLoadBase:
      aExecutor->SetSpeculationBase(mUrl);
      break;
    case eSpeculativeLoadImage:
      aExecutor->PreloadImage(mUrl, mCrossOrigin);
      break;
    case eSpeculativeLoadScript:
      aExecutor->PreloadScript(mUrl, mCharset, mTypeOrCharsetSource,
			       mCrossOrigin);
      break;
    case eSpeculativeLoadStyle:
      aExecutor->PreloadStyle(mUrl, mCharset, mCrossOrigin);
      break;
    case eSpeculativeLoadManifest:  
      aExecutor->ProcessOfflineManifest(mUrl);
      break;
    case eSpeculativeLoadSetDocumentCharset: {
        nsAutoCString narrowName;
        CopyUTF16toUTF8(mCharset, narrowName);
        NS_ASSERTION(mTypeOrCharsetSource.Length() == 1,
            "Unexpected charset source string");
        int32_t intSource = (int32_t)mTypeOrCharsetSource.First();
        aExecutor->SetDocumentCharsetAndSource(narrowName,
                                               intSource);
      }
      break;
    default:
      NS_NOTREACHED("Bogus speculative load.");
      break;
  }
}