Revert of Remove Mac native font type members from FontPlatformData

Source/platform/fonts/mac/FontPlatformDataMac.mm

 /*
  * This file is part of the internal font implementation.
  *
  * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (c) 2010 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 10 matching lines @@
  *
  */
 
 #import "config.h"
 #import "platform/fonts/FontPlatformData.h"
 
 #import <AppKit/NSFont.h>
 #import <AvailabilityMacros.h>
 #import <wtf/text/WTFString.h>
 
-#import "platform/LayoutTestSupport.h"
-#import "platform/fonts/Font.h"
+#include "platform/LayoutTestSupport.h"
+#include "platform/fonts/Font.h"
 #import "platform/fonts/shaping/HarfBuzzFace.h"
-#import "public/platform/Platform.h"
-#import "public/platform/mac/WebSandboxSupport.h"
-#import "third_party/skia/include/ports/SkTypeface_mac.h"
+#include "third_party/skia/include/ports/SkTypeface_mac.h"
+
+
 
 namespace blink {
 
-static bool canLoadInProcess(NSFont* nsFont) {
-    RetainPtr<CGFontRef> cgFont(AdoptCF, CTFontCopyGraphicsFont(toCTFontRef(nsFont), 0));
-    // Toll-free bridged types CFStringRef and NSString*.
-    RetainPtr<NSString> fontName(AdoptNS, const_cast<NSString*>(reinterpret_cast<const NSString*>(CGFontCopyPostScriptName(cgFont.get()))));
-    return ![fontName.get() isEqualToString:@"LastResort"];
-}
-
-static CTFontDescriptorRef cascadeToLastResortFontDescriptor()
-{
-    static CTFontDescriptorRef descriptor;
-    if (descriptor)
-        return descriptor;
-
-    RetainPtr<CTFontDescriptorRef> lastResort(AdoptCF,
-                                              CTFontDescriptorCreateWithNameAndSize(CFSTR("LastResort"), 0) );
-    const void* descriptors[] = { lastResort.get() };
-    RetainPtr<CFArrayRef> valuesArray(AdoptCF, CFArrayCreate(kCFAllocatorDefault,
-                                                             descriptors,
-                                                             WTF_ARRAY_LENGTH(descriptors),
-                                                             &kCFTypeArrayCallBacks));
-
-    const void* keys[] = { kCTFontCascadeListAttribute };
-    const void* values[] = { valuesArray.get() };
-    RetainPtr<CFDictionaryRef> attributes(AdoptCF,
-                                          CFDictionaryCreate(kCFAllocatorDefault,
-                                                             keys,
-                                                             values,
-                                                             WTF_ARRAY_LENGTH(keys),
-                                                             &kCFTypeDictionaryKeyCallBacks,
-                                                             &kCFTypeDictionaryValueCallBacks));
-
-    descriptor = CTFontDescriptorCreateWithAttributes(attributes.get());
-
-    return descriptor;
-}
-
-static PassRefPtr<SkTypeface> loadFromBrowserProcess(NSFont* nsFont, float textSize)
-{
-    // Send cross-process request to load font.
-    WebSandboxSupport* sandboxSupport = Platform::current()->sandboxSupport();
-    if (!sandboxSupport) {
-        // This function should only be called in response to an error loading a
-        // font due to being blocked by the sandbox.
-        // This by definition shouldn't happen if there is no sandbox support.
-        ASSERT_NOT_REACHED();
-        return nullptr;
-    }
-
-    CGFontRef loadedCgFont;
-    uint32_t fontID;
-    if (!sandboxSupport->loadFont(nsFont, &loadedCgFont, &fontID)) {
-        // TODO crbug.com/461279: Make this appear in the inspector console?
-        WTF_LOG_ERROR("Loading user font \"%s\" from non system location failed. Corrupt or missing font file?", [[nsFont familyName] UTF8String]);
-        return nullptr;
-    }
-    RetainPtr<CGFontRef> cgFont(AdoptCF, loadedCgFont);
-    RetainPtr<CTFontRef> ctFont(AdoptCF, CTFontCreateWithGraphicsFont(cgFont.get(), textSize, 0, cascadeToLastResortFontDescriptor()));
-    PassRefPtr<SkTypeface> returnFont = adoptRef(SkCreateTypefaceFromCTFont(ctFont.get()));
-
-    if (!returnFont.get())
-        // TODO crbug.com/461279: Make this appear in the inspector console?
-        WTF_LOG_ERROR("Instantiating SkTypeface from user font failed for font family \"%s\".", [[nsFont familyName] UTF8String]);
-    return returnFont;
-}
-
 void FontPlatformData::setupPaint(SkPaint* paint, float, const Font* font) const
 {
     bool shouldSmoothFonts = true;
     bool shouldAntialias = true;
 
     if (font) {
         switch (font->fontDescription().fontSmoothing()) {
         case Antialiased:
             shouldSmoothFonts = false;
             break;
@@ skipping 29 matching lines @@
     // See crbug.com/152304
     if (font && (font->fontDescription().fontSmoothing() == Antialiased || font->fontDescription().textRendering() == GeometricPrecision))
         paint->setHinting(SkPaint::kNo_Hinting);
 }
 
 FontPlatformData::FontPlatformData(NSFont *nsFont, float size, bool syntheticBold, bool syntheticItalic, FontOrientation orientation)
     : m_textSize(size)
     , m_syntheticBold(syntheticBold)
     , m_syntheticItalic(syntheticItalic)
     , m_orientation(orientation)
+    , m_isColorBitmapFont(false)
+    , m_isCompositeFontReference(false)
+    , m_font(nsFont)
     , m_isHashTableDeletedValue(false)
 {
     ASSERT_ARG(nsFont, nsFont);
-    if (canLoadInProcess(nsFont)) {
-        m_typeface = adoptRef(SkCreateTypefaceFromCTFont(toCTFontRef(nsFont)));
-    } else {
-        // In process loading fails for cases where third party font manager software
-        // registers fonts in non system locations such as /Library/Fonts
-        // and ~/Library Fonts, see crbug.com/72727 or crbug.com/108645.
-        m_typeface = loadFromBrowserProcess(nsFont, size);
+
+    CGFontRef cgFont = 0;
+    loadFont(nsFont, size, m_font, cgFont);
+
+#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
+    // FIXME: Chromium: The following code isn't correct for the Chromium port since the sandbox might
+    // have blocked font loading, in which case we'll only have the real loaded font file after the call to loadFont().
+    {
+        CTFontSymbolicTraits traits = CTFontGetSymbolicTraits(toCTFontRef(m_font));
+        m_isColorBitmapFont = traits & kCTFontColorGlyphsTrait;
+#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
+        m_isCompositeFontReference = traits & kCTFontCompositeTrait;
+#endif
     }
+#endif
+
+    if (m_font)
+        CFRetain(m_font);
+
+    m_cgFont.adoptCF(cgFont);
 }
 
-bool FontPlatformData::defaultUseSubpixelPositioning()
+void FontPlatformData::platformDataInit(const FontPlatformData& f)
 {
-    return FontDescription::subpixelPositioning();
+    m_font = f.m_font ? [f.m_font retain] : f.m_font;
+
+    m_cgFont = f.m_cgFont;
+    m_CTFont = f.m_CTFont;
+
+    m_inMemoryFont = f.m_inMemoryFont;
+    m_harfBuzzFace = f.m_harfBuzzFace;
+    m_typeface = f.m_typeface;
+}
+
+const FontPlatformData& FontPlatformData::platformDataAssign(const FontPlatformData& f)
+{
+    m_cgFont = f.m_cgFont;
+    if (m_font == f.m_font)
+        return *this;
+    if (f.m_font)
+        CFRetain(f.m_font);
+    if (m_font)
+        CFRelease(m_font);
+    m_font = f.m_font;
+    m_CTFont = f.m_CTFont;
+
+    m_inMemoryFont = f.m_inMemoryFont;
+    m_harfBuzzFace = f.m_harfBuzzFace;
+    m_typeface = f.m_typeface;
+
+    return *this;
 }
 
 
+void FontPlatformData::setFont(NSFont *font)
+{
+    ASSERT_ARG(font, font);
+
+    if (m_font == font)
+        return;
+
+    CFRetain(font);
+    if (m_font)
+        CFRelease(m_font);
+    m_font = font;
+    m_textSize = [font pointSize];
+
+    CGFontRef cgFont = 0;
+    NSFont* loadedFont = 0;
+    loadFont(m_font, m_textSize, loadedFont, cgFont);
+
+    // If loadFont replaced m_font with a fallback font, then release the
+    // previous font to counter the retain above. Then retain the new font.
+    if (loadedFont != m_font) {
+        CFRelease(m_font);
+        CFRetain(loadedFont);
+        m_font = loadedFont;
+    }
+
+    m_cgFont.adoptCF(cgFont);
+#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
+    {
+        CTFontSymbolicTraits traits = CTFontGetSymbolicTraits(toCTFontRef(m_font));
+        m_isColorBitmapFont = traits & kCTFontColorGlyphsTrait;
+#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
+        m_isCompositeFontReference = traits & kCTFontCompositeTrait;
+#endif
+    }
+#endif
+    m_CTFont = nullptr;
+}
+
+bool FontPlatformData::roundsGlyphAdvances() const
+{
+    return [m_font renderingMode] == NSFontAntialiasedIntegerAdvancementsRenderingMode;
+}
+
+bool FontPlatformData::allowsLigatures() const
+{
+    return ![[m_font coveredCharacterSet] characterIsMember:'a'];
+}
+
+static CFDictionaryRef createFeatureSettingDictionary(int featureTypeIdentifier, int featureSelectorIdentifier)
+{
+    RetainPtr<CFNumberRef> featureTypeIdentifierNumber(AdoptCF, CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &featureTypeIdentifier));
+    RetainPtr<CFNumberRef> featureSelectorIdentifierNumber(AdoptCF, CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &featureSelectorIdentifier));
+
+    const void* settingKeys[] = { kCTFontFeatureTypeIdentifierKey, kCTFontFeatureSelectorIdentifierKey };
+    const void* settingValues[] = { featureTypeIdentifierNumber.get(), featureSelectorIdentifierNumber.get() };
+
+    return CFDictionaryCreate(kCFAllocatorDefault, settingKeys, settingValues, WTF_ARRAY_LENGTH(settingKeys), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+}
+
+static CTFontDescriptorRef cascadeToLastResortFontDescriptor()
+{
+    static CTFontDescriptorRef descriptor;
+    if (descriptor)
+        return descriptor;
+
+    const void* keys[] = { kCTFontCascadeListAttribute };
+    const void* descriptors[] = { CTFontDescriptorCreateWithNameAndSize(CFSTR("LastResort"), 0) };
+    const void* values[] = { CFArrayCreate(kCFAllocatorDefault, descriptors, WTF_ARRAY_LENGTH(descriptors), &kCFTypeArrayCallBacks) };
+    RetainPtr<CFDictionaryRef> attributes(AdoptCF, CFDictionaryCreate(kCFAllocatorDefault, keys, values, WTF_ARRAY_LENGTH(keys), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
+
+    descriptor = CTFontDescriptorCreateWithAttributes(attributes.get());
+
+    return descriptor;
+}
+
+static CTFontDescriptorRef cascadeToLastResortAndDisableSwashesFontDescriptor()
+{
+    static CTFontDescriptorRef descriptor;
+    if (descriptor)
+        return descriptor;
+
+    RetainPtr<CFDictionaryRef> lineInitialSwashesOffSetting(AdoptCF, createFeatureSettingDictionary(kSmartSwashType, kLineInitialSwashesOffSelector));
+    RetainPtr<CFDictionaryRef> lineFinalSwashesOffSetting(AdoptCF, createFeatureSettingDictionary(kSmartSwashType, kLineFinalSwashesOffSelector));
+
+    const void* settingDictionaries[] = { lineInitialSwashesOffSetting.get(), lineFinalSwashesOffSetting.get() };
+    RetainPtr<CFArrayRef> featureSettings(AdoptCF, CFArrayCreate(kCFAllocatorDefault, settingDictionaries, WTF_ARRAY_LENGTH(settingDictionaries), &kCFTypeArrayCallBacks));
+
+    const void* keys[] = { kCTFontFeatureSettingsAttribute };
+    const void* values[] = { featureSettings.get() };
+    RetainPtr<CFDictionaryRef> attributes(AdoptCF, CFDictionaryCreate(kCFAllocatorDefault, keys, values, WTF_ARRAY_LENGTH(keys), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
+
+    descriptor = CTFontDescriptorCreateCopyWithAttributes(cascadeToLastResortFontDescriptor(), attributes.get());
+
+    return descriptor;
+}
+
+CTFontRef FontPlatformData::ctFont() const
+{
+    if (m_CTFont)
+        return m_CTFont.get();
+
+    if (m_inMemoryFont) {
+        m_CTFont.adoptCF(CTFontCreateWithGraphicsFont(m_inMemoryFont->cgFont(), m_textSize, 0, cascadeToLastResortFontDescriptor()));
+        return m_CTFont.get();
+    }
+
+    m_CTFont = toCTFontRef(m_font);
+    if (m_CTFont) {
+        CTFontDescriptorRef fontDescriptor;
+        RetainPtr<CFStringRef> postScriptName(AdoptCF, CTFontCopyPostScriptName(m_CTFont.get()));
+        // Hoefler Text Italic has line-initial and -final swashes enabled by default, so disable them.
+        if (CFEqual(postScriptName.get(), CFSTR("HoeflerText-Italic")) || CFEqual(postScriptName.get(), CFSTR("HoeflerText-BlackItalic")))
+            fontDescriptor = cascadeToLastResortAndDisableSwashesFontDescriptor();
+        else
+            fontDescriptor = cascadeToLastResortFontDescriptor();
+        m_CTFont.adoptCF(CTFontCreateCopyWithAttributes(m_CTFont.get(), m_textSize, 0, fontDescriptor));
+    } else
+        m_CTFont.adoptCF(CTFontCreateWithGraphicsFont(m_cgFont.get(), m_textSize, 0, cascadeToLastResortFontDescriptor()));
+
+    return m_CTFont.get();
+}
+
 } // namespace blink