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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "nsFontFaceList.h"
#include "nsFontFace.h"
#include "nsFontFaceLoader.h"
#include "nsIFrame.h"
#include "gfxTextRun.h"
#include "mozilla/gfx/2D.h"
nsFontFaceList::nsFontFaceList()
{
}
nsFontFaceList::~nsFontFaceList()
{
}
////////////////////////////////////////////////////////////////////////
// nsISupports
NS_IMPL_ISUPPORTS(nsFontFaceList, nsIDOMFontFaceList)
////////////////////////////////////////////////////////////////////////
// nsIDOMFontFaceList
NS_IMETHODIMP
nsFontFaceList::Item(uint32_t index, nsIDOMFontFace **_retval)
{
NS_ENSURE_TRUE(index < mFontFaces.Count(), NS_ERROR_INVALID_ARG);
uint32_t current = 0;
nsIDOMFontFace* result = nullptr;
for (auto iter = mFontFaces.Iter(); !iter.Done(); iter.Next()) {
if (current == index) {
result = iter.UserData();
break;
}
current++;
}
NS_ASSERTION(result != nullptr, "null entry in nsFontFaceList?");
NS_IF_ADDREF(*_retval = result);
return NS_OK;
}
NS_IMETHODIMP
nsFontFaceList::GetLength(uint32_t *aLength)
{
*aLength = mFontFaces.Count();
return NS_OK;
}
////////////////////////////////////////////////////////////////////////
// nsFontFaceList
nsresult
nsFontFaceList::AddFontsFromTextRun(gfxTextRun* aTextRun,
uint32_t aOffset, uint32_t aLength)
{
gfxTextRun::Range range(aOffset, aOffset + aLength);
gfxTextRun::GlyphRunIterator iter(aTextRun, range);
while (iter.NextRun()) {
gfxFontEntry *fe = iter.GetGlyphRun()->mFont->GetFontEntry();
// if we have already listed this face, just make sure the match type is
// recorded
nsFontFace* existingFace =
static_cast<nsFontFace*>(mFontFaces.GetWeak(fe));
if (existingFace) {
existingFace->AddMatchType(iter.GetGlyphRun()->mMatchType);
} else {
// A new font entry we haven't seen before
RefPtr<nsFontFace> ff =
new nsFontFace(fe, aTextRun->GetFontGroup(),
iter.GetGlyphRun()->mMatchType);
mFontFaces.Put(fe, ff);
}
}
return NS_OK;
}
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