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/*
* Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "CSSFontFace.h"
#include "CSSFontFaceSource.h"
#include "CSSFontSelector.h"
#include "CSSSegmentedFontFace.h"
#include "FontDescription.h"
#include "SimpleFontData.h"
namespace WebCore {
CSSFontFace::~CSSFontFace()
{
deleteAllValues(m_sources);
}
bool CSSFontFace::isLoaded() const
{
unsigned size = m_sources.size();
for (unsigned i = 0; i < size; i++) {
if (!m_sources[i]->isLoaded())
return false;
}
return true;
}
bool CSSFontFace::isValid() const
{
unsigned size = m_sources.size();
if (!size)
return false;
for (unsigned i = 0; i < size; i++) {
if (m_sources[i]->isValid())
return true;
}
return false;
}
void CSSFontFace::addedToSegmentedFontFace(CSSSegmentedFontFace* segmentedFontFace)
{
m_segmentedFontFaces.add(segmentedFontFace);
}
void CSSFontFace::removedFromSegmentedFontFace(CSSSegmentedFontFace* segmentedFontFace)
{
m_segmentedFontFaces.remove(segmentedFontFace);
}
void CSSFontFace::addSource(CSSFontFaceSource* source)
{
m_sources.append(source);
source->setFontFace(this);
}
void CSSFontFace::fontLoaded(CSSFontFaceSource* source)
{
if (source != m_activeSource)
return;
// FIXME: Can we assert that m_segmentedFontFaces is not empty? That may
// require stopping in-progress font loading when the last
// CSSSegmentedFontFace is removed.
if (m_segmentedFontFaces.isEmpty())
return;
HashSet<CSSSegmentedFontFace*>::iterator end = m_segmentedFontFaces.end();
for (HashSet<CSSSegmentedFontFace*>::iterator it = m_segmentedFontFaces.begin(); it != end; ++it)
(*it)->fontLoaded(this);
// Use one of the CSSSegmentedFontFaces' font selector. They all have
// the same font selector, so it's wasteful to store it in the CSSFontFace.
CSSFontSelector* fontSelector = (*m_segmentedFontFaces.begin())->fontSelector();
fontSelector->fontLoaded();
}
SimpleFontData* CSSFontFace::getFontData(const FontDescription& fontDescription, bool syntheticBold, bool syntheticItalic)
{
m_activeSource = 0;
if (!isValid())
return 0;
ASSERT(!m_segmentedFontFaces.isEmpty());
CSSFontSelector* fontSelector = (*m_segmentedFontFaces.begin())->fontSelector();
size_t size = m_sources.size();
for (size_t i = 0; i < size; ++i) {
if (SimpleFontData* result = m_sources[i]->getFontData(fontDescription, syntheticBold, syntheticItalic, fontSelector)) {
m_activeSource = m_sources[i];
return result;
}
}
return 0;
}
#if ENABLE(SVG_FONTS)
bool CSSFontFace::hasSVGFontFaceSource() const
{
for (unsigned i = 0; i < m_sources.size(); i++) {
if (m_sources[i]->isSVGFontFaceSource())
return true;
}
return false;
}
#endif
}
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