15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * are met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/mac/ComplexTextController.h" 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/Font.h" 3053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/FontCache.h" 3153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/TextRun.h" 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include <ApplicationServices/ApplicationServices.h> 34591b958dee2cf159d33a0b931e6231072eaf38d5Ben Murdoch#import <AvailabilityMacros.h> 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)// Forward declare Mac SPIs. 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)extern "C" { 3853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)// Request for public API: rdar://13803619 3953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)CTLineRef CTLineCreateWithUniCharProvider(const UniChar* (*provide)(CFIndex stringIndex, CFIndex* charCount, CFDictionaryRef* attributes, void* context), void (*dispose)(const UniChar* chars, void* context), void* context); 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)@interface WebCascadeList : NSArray { 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) @private 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const WebCore::Font* _font; 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) UChar32 _character; 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) NSUInteger _count; 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) Vector<RetainPtr<CTFontDescriptorRef>, 16> _fontDescriptors; 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)- (id)initWithFont:(const WebCore::Font*)font character:(UChar32)character; 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)@end 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)@implementation WebCascadeList 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)- (id)initWithFont:(const WebCore::Font*)font character:(UChar32)character 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!(self = [super init])) 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return nil; 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) _font = font; 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) _character = character; 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // By the time a WebCascadeList is used, the Font has already been asked to realize all of its 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // FontData, so this loop does not hit the FontCache. 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) while (_font->fontDataAt(_count)) 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) _count++; 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return self; 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)- (NSUInteger)count 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return _count; 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)- (id)objectAtIndex:(NSUInteger)index 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CTFontDescriptorRef fontDescriptor; 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (index < _fontDescriptors.size()) { 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if ((fontDescriptor = _fontDescriptors[index].get())) 825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return (id)fontDescriptor; 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } else 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) _fontDescriptors.grow(index + 1); 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const WebCore::SimpleFontData* fontData = _font->fontDataAt(index)->fontDataForCharacter(_character); 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) fontDescriptor = CTFontCopyFontDescriptor(fontData->platformData().ctFont()); 885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) _fontDescriptors[index] = RetainPtr<CTFontDescriptorRef>(AdoptCF, fontDescriptor); 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return (id)fontDescriptor; 905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)@end 935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)ComplexTextController::ComplexTextRun::ComplexTextRun(CTRunRef ctRun, const SimpleFontData* fontData, const UChar* characters, unsigned stringLocation, size_t stringLength, CFRange runRange) 975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) : m_fontData(fontData) 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_characters(characters) 995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_stringLocation(stringLocation) 1005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_stringLength(stringLength) 1015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_indexBegin(runRange.location) 1025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_indexEnd(runRange.location + runRange.length) 1035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_isLTR(!(CTRunGetStatus(ctRun) & kCTRunStatusRightToLeft)) 1045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_isMonotonic(true) 1055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_glyphCount = CTRunGetGlyphCount(ctRun); 1075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_coreTextIndices = CTRunGetStringIndicesPtr(ctRun); 1085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!m_coreTextIndices) { 1095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_coreTextIndicesVector.grow(m_glyphCount); 1105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CTRunGetStringIndices(ctRun, CFRangeMake(0, 0), m_coreTextIndicesVector.data()); 1115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_coreTextIndices = m_coreTextIndicesVector.data(); 1125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_glyphs = CTRunGetGlyphsPtr(ctRun); 1155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!m_glyphs) { 1165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_glyphsVector.grow(m_glyphCount); 1175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CTRunGetGlyphs(ctRun, CFRangeMake(0, 0), m_glyphsVector.data()); 1185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_glyphs = m_glyphsVector.data(); 1195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_advances = CTRunGetAdvancesPtr(ctRun); 1225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!m_advances) { 1235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_advancesVector.grow(m_glyphCount); 1245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CTRunGetAdvances(ctRun, CFRangeMake(0, 0), m_advancesVector.data()); 1255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_advances = m_advancesVector.data(); 1265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)// Missing glyphs run constructor. Core Text will not generate a run of missing glyphs, instead falling back on 1305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)// glyphs from LastResort. We want to use the primary font's missing glyph in order to match the fast text code path. 1315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)ComplexTextController::ComplexTextRun::ComplexTextRun(const SimpleFontData* fontData, const UChar* characters, unsigned stringLocation, size_t stringLength, bool ltr) 1325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) : m_fontData(fontData) 1335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_characters(characters) 1345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_stringLocation(stringLocation) 1355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_stringLength(stringLength) 1365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_indexBegin(0) 1375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_indexEnd(stringLength) 1385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_isLTR(ltr) 1395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_isMonotonic(true) 1405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_coreTextIndicesVector.reserveInitialCapacity(m_stringLength); 1425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) unsigned r = 0; 1435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) while (r < m_stringLength) { 1445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_coreTextIndicesVector.uncheckedAppend(r); 1455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (U_IS_SURROGATE(m_characters[r])) { 1465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(r + 1 < m_stringLength); 1475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(U_IS_SURROGATE_LEAD(m_characters[r])); 1485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(U_IS_TRAIL(m_characters[r + 1])); 1495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) r += 2; 1505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } else 1515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) r++; 1525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_glyphCount = m_coreTextIndicesVector.size(); 1545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!ltr) { 1555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (unsigned r = 0, end = m_glyphCount - 1; r < m_glyphCount / 2; ++r, --end) 1565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) std::swap(m_coreTextIndicesVector[r], m_coreTextIndicesVector[end]); 1575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_coreTextIndices = m_coreTextIndicesVector.data(); 1595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Synthesize a run of missing glyphs. 1615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_glyphsVector.fill(0, m_glyphCount); 1625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_glyphs = m_glyphsVector.data(); 1635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_advancesVector.fill(CGSizeMake(m_fontData->widthForGlyph(0), 0), m_glyphCount); 1645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_advances = m_advancesVector.data(); 1655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)struct ProviderInfo { 1685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const UChar* cp; 1695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) unsigned length; 1705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CFDictionaryRef attributes; 1715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 1725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)static const UniChar* provideStringAndAttributes(CFIndex stringIndex, CFIndex* charCount, CFDictionaryRef* attributes, void* refCon) 1745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ProviderInfo* info = static_cast<struct ProviderInfo*>(refCon); 1765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (stringIndex < 0 || static_cast<unsigned>(stringIndex) >= info->length) 1775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 1785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) *charCount = info->length - stringIndex; 1805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) *attributes = info->attributes; 1815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return info->cp + stringIndex; 1825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void ComplexTextController::collectComplexTextRunsForCharacters(const UChar* cp, unsigned length, unsigned stringLocation, const SimpleFontData* fontData) 1855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!fontData) { 1875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Create a run of missing glyphs from the primary font. 1885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_complexTextRuns.append(ComplexTextRun::create(m_font.primaryFont(), cp, stringLocation, length, m_run.ltr())); 1895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return; 1905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool isSystemFallback = false; 1935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) UChar32 baseCharacter = 0; 1955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CFDictionaryRef> stringAttributes; 1965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (fontData == SimpleFontData::systemFallback()) { 1975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // FIXME: This code path does not support small caps. 1985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) isSystemFallback = true; 1995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) U16_GET(cp, 0, 0, length, baseCharacter); 2015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) fontData = m_font.fontDataAt(0)->fontDataForCharacter(baseCharacter); 2025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<WebCascadeList> cascadeList(AdoptNS, [[WebCascadeList alloc] initWithFont:&m_font character:baseCharacter]); 2045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) stringAttributes.adoptCF(CFDictionaryCreateMutableCopy(kCFAllocatorDefault, 0, fontData->getCFStringAttributes(m_font.typesettingFeatures(), fontData->platformData().orientation()))); 2065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static const void* attributeKeys[] = { kCTFontCascadeListAttribute }; 2075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const void* values[] = { cascadeList.get() }; 2085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CFDictionaryRef> attributes(AdoptCF, CFDictionaryCreate(kCFAllocatorDefault, attributeKeys, values, sizeof(attributeKeys) / sizeof(*attributeKeys), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)); 2095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CTFontDescriptorRef> fontDescriptor(AdoptCF, CTFontDescriptorCreateWithAttributes(attributes.get())); 2105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CTFontRef> fontWithCascadeList(AdoptCF, CTFontCreateCopyWithAttributes(fontData->platformData().ctFont(), m_font.pixelSize(), 0, fontDescriptor.get())); 2115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CFDictionarySetValue(const_cast<CFMutableDictionaryRef>(stringAttributes.get()), kCTFontAttributeName, fontWithCascadeList.get()); 2125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } else 2135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) stringAttributes = fontData->getCFStringAttributes(m_font.typesettingFeatures(), fontData->platformData().orientation()); 2145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CTLineRef> line; 2165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!m_mayUseNaturalWritingDirection || m_run.directionalOverride()) { 2185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static const void* optionKeys[] = { kCTTypesetterOptionForcedEmbeddingLevel }; 2195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const short ltrForcedEmbeddingLevelValue = 0; 2205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const short rtlForcedEmbeddingLevelValue = 1; 2215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static const void* ltrOptionValues[] = { CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, <rForcedEmbeddingLevelValue) }; 2225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static const void* rtlOptionValues[] = { CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &rtlForcedEmbeddingLevelValue) }; 2235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static CFDictionaryRef ltrTypesetterOptions = CFDictionaryCreate(kCFAllocatorDefault, optionKeys, ltrOptionValues, WTF_ARRAY_LENGTH(optionKeys), &kCFCopyStringDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); 2245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static CFDictionaryRef rtlTypesetterOptions = CFDictionaryCreate(kCFAllocatorDefault, optionKeys, rtlOptionValues, WTF_ARRAY_LENGTH(optionKeys), &kCFCopyStringDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); 2255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 22653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070 2275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ProviderInfo info = { cp, length, stringAttributes.get() }; 22853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) RetainPtr<CTTypesetterRef> typesetter(AdoptCF, WKCreateCTTypesetterWithUniCharProviderAndOptions(&provideStringAndAttributes, 0, &info, m_run.ltr() ? ltrTypesetterOptions : rtlTypesetterOptions)); 2295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#else 2305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CFStringRef> string(AdoptCF, CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, cp, length, kCFAllocatorNull)); 2315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CFAttributedStringRef> attributedString(AdoptCF, CFAttributedStringCreate(kCFAllocatorDefault, string.get(), stringAttributes.get())); 2325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CTTypesetterRef> typesetter(AdoptCF, CTTypesetterCreateWithAttributedStringAndOptions(attributedString.get(), m_run.ltr() ? ltrTypesetterOptions : rtlTypesetterOptions)); 2335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif 2345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) line.adoptCF(CTTypesetterCreateLine(typesetter.get(), CFRangeMake(0, 0))); 2365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } else { 2375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ProviderInfo info = { cp, length, stringAttributes.get() }; 2385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 23953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) line.adoptCF(CTLineCreateWithUniCharProvider(&provideStringAndAttributes, 0, &info)); 2405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 2415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_coreTextLines.append(line.get()); 2435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CFArrayRef runArray = CTLineGetGlyphRuns(line.get()); 2455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CFIndex runCount = CFArrayGetCount(runArray); 2475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (CFIndex r = 0; r < runCount; r++) { 2495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CTRunRef ctRun = static_cast<CTRunRef>(CFArrayGetValueAtIndex(runArray, m_run.ltr() ? r : runCount - 1 - r)); 2505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(CFGetTypeID(ctRun) == CTRunGetTypeID()); 2515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CFRange runRange = CTRunGetStringRange(ctRun); 2525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const SimpleFontData* runFontData = fontData; 2535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (isSystemFallback) { 2545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CFDictionaryRef runAttributes = CTRunGetAttributes(ctRun); 2555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CTFontRef runFont = static_cast<CTFontRef>(CFDictionaryGetValue(runAttributes, kCTFontAttributeName)); 2565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(CFGetTypeID(runFont) == CTFontGetTypeID()); 2575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!CFEqual(runFont, fontData->platformData().ctFont())) { 2585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Begin trying to see if runFont matches any of the fonts in the fallback list. 2595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CGFontRef> runCGFont(AdoptCF, CTFontCopyGraphicsFont(runFont, 0)); 2605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) unsigned i = 0; 2615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (const FontData* candidateFontData = m_font.fontDataAt(i); candidateFontData; candidateFontData = m_font.fontDataAt(++i)) { 2625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) runFontData = candidateFontData->fontDataForCharacter(baseCharacter); 2635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CGFontRef> cgFont(AdoptCF, CTFontCopyGraphicsFont(runFontData->platformData().ctFont(), 0)); 2645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (CFEqual(cgFont.get(), runCGFont.get())) 2655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) break; 2665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) runFontData = 0; 2675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 2685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // If there is no matching font, look up by name in the font cache. 2695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!runFontData) { 2705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Rather than using runFont as an NSFont and wrapping it in a FontPlatformData, go through 2715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // the font cache and ultimately through NSFontManager in order to get an NSFont with the right 2725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // NSFontRenderingMode. 2735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RetainPtr<CFStringRef> fontName(AdoptCF, CTFontCopyPostScriptName(runFont)); 2745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (CFEqual(fontName.get(), CFSTR("LastResort"))) { 2755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_complexTextRuns.append(ComplexTextRun::create(m_font.primaryFont(), cp, stringLocation + runRange.location, runRange.length, m_run.ltr())); 2765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) continue; 2775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 278e6d4491e48613634a83c1957c72759da80987961Ben Murdoch runFontData = fontCache()->getFontResourceData(m_font.fontDescription(), fontName.get(), false, FontCache::DoNotRetain).get(); 2795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Core Text may have used a font that is not known to NSFontManager. In that case, fall back on 2805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // using the font as returned, even though it may not have the best NSFontRenderingMode. 2815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!runFontData) { 2825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FontPlatformData runFontPlatformData((NSFont *)runFont, CTFontGetSize(runFont), m_font.fontDescription().usePrinterFont()); 283e6d4491e48613634a83c1957c72759da80987961Ben Murdoch runFontData = fontCache()->getFontResourceData(&runFontPlatformData, FontCache::DoNotRetain).get(); 2845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 2855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 2865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (m_fallbackFonts && runFontData != m_font.primaryFont()) 2875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_fallbackFonts->add(runFontData); 2885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 2895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 2905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (m_fallbackFonts && runFontData != m_font.primaryFont()) 2915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_fallbackFonts->add(fontData); 2925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_complexTextRuns.append(ComplexTextRun::create(ctRun, runFontData, cp, stringLocation, length, runRange)); 2945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 2955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 2965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebCore 298