The Tor Browser / file comparison
comparison: layout/inspector/nsFontFaceList.cpp
layout/inspector/nsFontFaceList.cpp
- branch
- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
equal
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replaced
| -1:000000000000 | 0:8be7908819a8 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #include "nsFontFaceList.h" | |
| 6 #include "nsFontFace.h" | |
| 7 #include "nsFontFaceLoader.h" | |
| 8 #include "nsIFrame.h" | |
| 9 #include "gfxFont.h" | |
| 10 #include "mozilla/gfx/2D.h" | |
| 11 | |
| 12 nsFontFaceList::nsFontFaceList() | |
| 13 { | |
| 14 } | |
| 15 | |
| 16 nsFontFaceList::~nsFontFaceList() | |
| 17 { | |
| 18 } | |
| 19 | |
| 20 //////////////////////////////////////////////////////////////////////// | |
| 21 // nsISupports | |
| 22 | |
| 23 NS_IMPL_ISUPPORTS(nsFontFaceList, nsIDOMFontFaceList) | |
| 24 | |
| 25 //////////////////////////////////////////////////////////////////////// | |
| 26 // nsIDOMFontFaceList | |
| 27 | |
| 28 /* nsIDOMFontFace item (in unsigned long index); */ | |
| 29 struct FindByIndexData { | |
| 30 uint32_t mTarget; | |
| 31 uint32_t mCurrent; | |
| 32 nsIDOMFontFace* mResult; | |
| 33 }; | |
| 34 | |
| 35 static PLDHashOperator | |
| 36 FindByIndex(gfxFontEntry* aKey, nsIDOMFontFace* aData, void* aUserData) | |
| 37 { | |
| 38 FindByIndexData* data = static_cast<FindByIndexData*>(aUserData); | |
| 39 if (data->mCurrent == data->mTarget) { | |
| 40 data->mResult = aData; | |
| 41 return PL_DHASH_STOP; | |
| 42 } | |
| 43 data->mCurrent++; | |
| 44 return PL_DHASH_NEXT; | |
| 45 } | |
| 46 | |
| 47 NS_IMETHODIMP | |
| 48 nsFontFaceList::Item(uint32_t index, nsIDOMFontFace **_retval) | |
| 49 { | |
| 50 NS_ENSURE_TRUE(index < mFontFaces.Count(), NS_ERROR_INVALID_ARG); | |
| 51 FindByIndexData userData; | |
| 52 userData.mTarget = index; | |
| 53 userData.mCurrent = 0; | |
| 54 userData.mResult = nullptr; | |
| 55 mFontFaces.EnumerateRead(FindByIndex, &userData); | |
| 56 NS_ASSERTION(userData.mResult != nullptr, "null entry in nsFontFaceList?"); | |
| 57 NS_IF_ADDREF(*_retval = userData.mResult); | |
| 58 return NS_OK; | |
| 59 } | |
| 60 | |
| 61 /* readonly attribute unsigned long length; */ | |
| 62 NS_IMETHODIMP | |
| 63 nsFontFaceList::GetLength(uint32_t *aLength) | |
| 64 { | |
| 65 *aLength = mFontFaces.Count(); | |
| 66 return NS_OK; | |
| 67 } | |
| 68 | |
| 69 //////////////////////////////////////////////////////////////////////// | |
| 70 // nsFontFaceList | |
| 71 | |
| 72 nsresult | |
| 73 nsFontFaceList::AddFontsFromTextRun(gfxTextRun* aTextRun, | |
| 74 uint32_t aOffset, uint32_t aLength) | |
| 75 { | |
| 76 gfxTextRun::GlyphRunIterator iter(aTextRun, aOffset, aLength); | |
| 77 while (iter.NextRun()) { | |
| 78 gfxFontEntry *fe = iter.GetGlyphRun()->mFont->GetFontEntry(); | |
| 79 // if we have already listed this face, just make sure the match type is | |
| 80 // recorded | |
| 81 nsFontFace* existingFace = | |
| 82 static_cast<nsFontFace*>(mFontFaces.GetWeak(fe)); | |
| 83 if (existingFace) { | |
| 84 existingFace->AddMatchType(iter.GetGlyphRun()->mMatchType); | |
| 85 } else { | |
| 86 // A new font entry we haven't seen before | |
| 87 nsRefPtr<nsFontFace> ff = | |
| 88 new nsFontFace(fe, aTextRun->GetFontGroup(), | |
| 89 iter.GetGlyphRun()->mMatchType); | |
| 90 mFontFaces.Put(fe, ff); | |
| 91 } | |
| 92 } | |
| 93 | |
| 94 return NS_OK; | |
| 95 } |
