/* | |
* 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; | |
} | |
} | |