/* * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. * Copyright (C) 2012 Intel Corporation * * 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 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 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 "FontCascade.h" #if USE(CAIRO) #include "SurrogatePairAwareTextIterator.h" #include <unicode/normlzr.h> namespace WebCore { bool FontCascade::canReturnFallbackFontsForComplexText() { return false; } bool FontCascade::canExpandAroundIdeographsInComplexText() { return false; } const Font* FontCascade::fontForCombiningCharacterSequence(const UChar* characters, size_t length) const { UErrorCode error = U_ZERO_ERROR; Vector<UChar, 4> normalizedCharacters(length); int32_t normalizedLength = unorm_normalize(characters, length, UNORM_NFC, UNORM_UNICODE_3_2, normalizedCharacters.data(), length, &error); if (U_FAILURE(error)) return nullptr; UChar32 character; unsigned clusterLength = 0; SurrogatePairAwareTextIterator iterator(normalizedCharacters.data(), 0, normalizedLength, normalizedLength); if (!iterator.consume(character, clusterLength)) return nullptr; return glyphDataForCharacter(character, false, NormalVariant).font; } } // namespace WebCore #endif // USE(CAIRO)