Add SPI for telling WebKit to prefer pictograph glyphs over monochrome ones
https://bugs.webkit.org/show_bug.cgi?id=122608
Reviewed by Dan Bernstein.
Based on patches by Dan Bernstein.
Source/WebCore:
Test: fonts/font-fallback-prefers-pictographs.html
Created a mechanism to append a font to the end of a font's fallback
list, before the system fallback list. This mechanism is used when
Settings::fontFallbackPrefersPictographs() is true to insert a
pictograph font ahead of a monochrome one from the system fallback list.
* WebCore.exp.in: Moved
__ZN7WebCore8Settings33setFontFallbackPrefersPictographsEb outside of
an iOS platform guard.
* css/CSSFontSelector.cpp:
(WebCore::CSSFontSelector::fallbackFontDataCount): Retuned 1 if
pictograph fonts are preferred.
(WebCore::CSSFontSelector::getFallbackFontData): Returned the
pictograph font's FontData if it is preferred.
* css/CSSFontSelector.h:
* page/Settings.cpp:
(WebCore::Settings::Settings): Initialized
m_fontFallbackPrefersPictographs to false.
(WebCore::Settings::setFontFallbackPrefersPictographs): Set
m_fontFallbackPrefersPictographs and called
Page::setNeedsRecalcStyleInAllFrames().
* page/Settings.h:
(WebCore::Settings::fontFallbackPrefersPictographs):
* platform/graphics/FontGlyphs.cpp:
(WebCore::FontGlyphs::realizeFontDataAt): Realized the selector's
fallback font if necessary.
* platform/graphics/FontSelector.h:
* style/StyleResolveTree.cpp:
(WebCore::Style::resolveTree): Removed iOS platform guards.
* testing/InternalSettings.cpp:
(WebCore::InternalSettings::setFontFallbackPrefersPictographs): Set the
corresponding WebCore::Setting.
* testing/InternalSettings.h: Defined an internal setting for the test.
* testing/InternalSettings.idl: Ditto.
Source/WebKit/mac:
* WebView/WebView.mm:
(-[WebView _setFontFallbackPrefersPictographs:]): Called
WebCore::Settings::setFontFallbackPrefersPictographs().
* WebView/WebViewPrivate.h:
LayoutTests:
* fonts/font-fallback-prefers-pictographs-expected.html: Added.
* fonts/font-fallback-prefers-pictographs.html: Added.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@157265 268f45cc-cd09-0410-ab3c-d52691b4dbfc
18 files changed
