LCOV - code coverage report
Current view: directory - layout/inspector/src - nsFontFaceList.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 40 0 0.0 %
Date: 2012-06-02 Functions: 10 0 0.0 %

       1                 : /* ***** BEGIN LICENSE BLOCK *****
       2                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       3                 :  *
       4                 :  * The contents of this file are subject to the Mozilla Public License Version
       5                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       6                 :  * the License. You may obtain a copy of the License at
       7                 :  * http://www.mozilla.org/MPL/
       8                 :  *
       9                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      10                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      11                 :  * for the specific language governing rights and limitations under the
      12                 :  * License.
      13                 :  *
      14                 :  * The Original Code is mozilla.org code.
      15                 :  *
      16                 :  * The Initial Developer of the Original Code is Mozilla Foundation.
      17                 :  * Portions created by the Initial Developer are Copyright (C) 2011
      18                 :  * the Initial Developer. All Rights Reserved.
      19                 :  *
      20                 :  * Contributor(s):
      21                 :  *   Jonathan Kew <jfkthame@gmail.com>
      22                 :  *
      23                 :  * Alternatively, the contents of this file may be used under the terms of
      24                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      25                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      26                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      27                 :  * of those above. If you wish to allow use of your version of this file only
      28                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      29                 :  * use your version of this file under the terms of the MPL, indicate your
      30                 :  * decision by deleting the provisions above and replace them with the notice
      31                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      32                 :  * the provisions above, a recipient may use your version of this file under
      33                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      34                 :  *
      35                 :  * ***** END LICENSE BLOCK ***** */
      36                 : 
      37                 : #define _IMPL_NS_LAYOUT
      38                 : 
      39                 : #include "nsFontFaceList.h"
      40                 : #include "nsFontFace.h"
      41                 : #include "nsFontFaceLoader.h"
      42                 : #include "nsIFrame.h"
      43                 : #include "gfxFont.h"
      44                 : 
      45               0 : nsFontFaceList::nsFontFaceList()
      46                 : {
      47               0 :   mFontFaces.Init();
      48               0 : }
      49                 : 
      50               0 : nsFontFaceList::~nsFontFaceList()
      51                 : {
      52               0 : }
      53                 : 
      54                 : ////////////////////////////////////////////////////////////////////////
      55                 : // nsISupports
      56                 : 
      57               0 : NS_IMPL_ISUPPORTS1(nsFontFaceList, nsIDOMFontFaceList)
      58                 : 
      59                 : ////////////////////////////////////////////////////////////////////////
      60                 : // nsIDOMFontFaceList
      61                 : 
      62                 : /* nsIDOMFontFace item (in unsigned long index); */
      63                 : struct FindByIndexData {
      64                 :   PRUint32 mTarget;
      65                 :   PRUint32 mCurrent;
      66                 :   nsIDOMFontFace* mResult;
      67                 : };
      68                 : 
      69                 : static PLDHashOperator
      70               0 : FindByIndex(gfxFontEntry* aKey, nsIDOMFontFace* aData, void* aUserData)
      71                 : {
      72               0 :   FindByIndexData* data = static_cast<FindByIndexData*>(aUserData);
      73               0 :   if (data->mCurrent == data->mTarget) {
      74               0 :     data->mResult = aData;
      75               0 :     return PL_DHASH_STOP;
      76                 :   }
      77               0 :   data->mCurrent++;
      78               0 :   return PL_DHASH_NEXT;
      79                 : }
      80                 : 
      81                 : NS_IMETHODIMP
      82               0 : nsFontFaceList::Item(PRUint32 index, nsIDOMFontFace **_retval NS_OUTPARAM)
      83                 : {
      84               0 :   NS_ENSURE_TRUE(index < mFontFaces.Count(), NS_ERROR_INVALID_ARG);
      85                 :   FindByIndexData userData;
      86               0 :   userData.mTarget = index;
      87               0 :   userData.mCurrent = 0;
      88               0 :   userData.mResult = nsnull;
      89               0 :   mFontFaces.EnumerateRead(FindByIndex, &userData);
      90               0 :   NS_ASSERTION(userData.mResult != nsnull, "null entry in nsFontFaceList?");
      91               0 :   NS_IF_ADDREF(*_retval = userData.mResult);
      92               0 :   return NS_OK;
      93                 : }
      94                 : 
      95                 : /* readonly attribute unsigned long length; */
      96                 : NS_IMETHODIMP
      97               0 : nsFontFaceList::GetLength(PRUint32 *aLength)
      98                 : {
      99               0 :   *aLength = mFontFaces.Count();
     100               0 :   return NS_OK;
     101                 : }
     102                 : 
     103                 : ////////////////////////////////////////////////////////////////////////
     104                 : // nsFontFaceList
     105                 : 
     106                 : nsresult
     107               0 : nsFontFaceList::AddFontsFromTextRun(gfxTextRun* aTextRun,
     108                 :                                     PRUint32 aOffset, PRUint32 aLength,
     109                 :                                     nsIFrame* aFrame)
     110                 : {
     111               0 :   gfxTextRun::GlyphRunIterator iter(aTextRun, aOffset, aLength);
     112               0 :   while (iter.NextRun()) {
     113               0 :     gfxFontEntry *fe = iter.GetGlyphRun()->mFont->GetFontEntry();
     114                 :     // if we have already listed this face, just make sure the match type is
     115                 :     // recorded
     116                 :     nsFontFace* existingFace =
     117               0 :       static_cast<nsFontFace*>(mFontFaces.GetWeak(fe));
     118               0 :     if (existingFace) {
     119               0 :       existingFace->AddMatchType(iter.GetGlyphRun()->mMatchType);
     120                 :     } else {
     121                 :       // A new font entry we haven't seen before;
     122                 :       // check whether this font entry is associated with an @font-face rule
     123               0 :       nsRefPtr<nsCSSFontFaceRule> rule;
     124                 :       nsUserFontSet* fontSet =
     125               0 :         static_cast<nsUserFontSet*>(aFrame->PresContext()->GetUserFontSet());
     126               0 :       if (fontSet) {
     127               0 :         rule = fontSet->FindRuleForEntry(fe);
     128                 :       }
     129                 :       nsCOMPtr<nsFontFace> ff =
     130               0 :         new nsFontFace(fe, iter.GetGlyphRun()->mMatchType, rule);
     131               0 :       if (!mFontFaces.Put(fe, ff)) {
     132               0 :         return NS_ERROR_OUT_OF_MEMORY;
     133                 :       }
     134                 :     }
     135                 :   }
     136                 : 
     137               0 :   return NS_OK;
     138                 : }

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