The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/layout/inspector/nsFontFaceList.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,95 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +#include "nsFontFaceList.h"
     1.9 +#include "nsFontFace.h"
    1.10 +#include "nsFontFaceLoader.h"
    1.11 +#include "nsIFrame.h"
    1.12 +#include "gfxFont.h"
    1.13 +#include "mozilla/gfx/2D.h"
    1.14 +
    1.15 +nsFontFaceList::nsFontFaceList()
    1.16 +{
    1.17 +}
    1.18 +
    1.19 +nsFontFaceList::~nsFontFaceList()
    1.20 +{
    1.21 +}
    1.22 +
    1.23 +////////////////////////////////////////////////////////////////////////
    1.24 +// nsISupports
    1.25 +
    1.26 +NS_IMPL_ISUPPORTS(nsFontFaceList, nsIDOMFontFaceList)
    1.27 +
    1.28 +////////////////////////////////////////////////////////////////////////
    1.29 +// nsIDOMFontFaceList
    1.30 +
    1.31 +/* nsIDOMFontFace item (in unsigned long index); */
    1.32 +struct FindByIndexData {
    1.33 +  uint32_t mTarget;
    1.34 +  uint32_t mCurrent;
    1.35 +  nsIDOMFontFace* mResult;
    1.36 +};
    1.37 +
    1.38 +static PLDHashOperator
    1.39 +FindByIndex(gfxFontEntry* aKey, nsIDOMFontFace* aData, void* aUserData)
    1.40 +{
    1.41 +  FindByIndexData* data = static_cast<FindByIndexData*>(aUserData);
    1.42 +  if (data->mCurrent == data->mTarget) {
    1.43 +    data->mResult = aData;
    1.44 +    return PL_DHASH_STOP;
    1.45 +  }
    1.46 +  data->mCurrent++;
    1.47 +  return PL_DHASH_NEXT;
    1.48 +}
    1.49 +
    1.50 +NS_IMETHODIMP
    1.51 +nsFontFaceList::Item(uint32_t index, nsIDOMFontFace **_retval)
    1.52 +{
    1.53 +  NS_ENSURE_TRUE(index < mFontFaces.Count(), NS_ERROR_INVALID_ARG);
    1.54 +  FindByIndexData userData;
    1.55 +  userData.mTarget = index;
    1.56 +  userData.mCurrent = 0;
    1.57 +  userData.mResult = nullptr;
    1.58 +  mFontFaces.EnumerateRead(FindByIndex, &userData);
    1.59 +  NS_ASSERTION(userData.mResult != nullptr, "null entry in nsFontFaceList?");
    1.60 +  NS_IF_ADDREF(*_retval = userData.mResult);
    1.61 +  return NS_OK;
    1.62 +}
    1.63 +
    1.64 +/* readonly attribute unsigned long length; */
    1.65 +NS_IMETHODIMP
    1.66 +nsFontFaceList::GetLength(uint32_t *aLength)
    1.67 +{
    1.68 +  *aLength = mFontFaces.Count();
    1.69 +  return NS_OK;
    1.70 +}
    1.71 +
    1.72 +////////////////////////////////////////////////////////////////////////
    1.73 +// nsFontFaceList
    1.74 +
    1.75 +nsresult
    1.76 +nsFontFaceList::AddFontsFromTextRun(gfxTextRun* aTextRun,
    1.77 +                                    uint32_t aOffset, uint32_t aLength)
    1.78 +{
    1.79 +  gfxTextRun::GlyphRunIterator iter(aTextRun, aOffset, aLength);
    1.80 +  while (iter.NextRun()) {
    1.81 +    gfxFontEntry *fe = iter.GetGlyphRun()->mFont->GetFontEntry();
    1.82 +    // if we have already listed this face, just make sure the match type is
    1.83 +    // recorded
    1.84 +    nsFontFace* existingFace =
    1.85 +      static_cast<nsFontFace*>(mFontFaces.GetWeak(fe));
    1.86 +    if (existingFace) {
    1.87 +      existingFace->AddMatchType(iter.GetGlyphRun()->mMatchType);
    1.88 +    } else {
    1.89 +      // A new font entry we haven't seen before
    1.90 +      nsRefPtr<nsFontFace> ff =
    1.91 +        new nsFontFace(fe, aTextRun->GetFontGroup(),
    1.92 +                       iter.GetGlyphRun()->mMatchType);
    1.93 +      mFontFaces.Put(fe, ff);
    1.94 +    }
    1.95 +  }
    1.96 +
    1.97 +  return NS_OK;
    1.98 +}