зеркало из https://github.com/mozilla/gecko-dev.git
2476 строки
83 KiB
C++
2476 строки
83 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Logging.h"
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#include "mozilla/intl/LocaleService.h"
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#include "mozilla/intl/MozLocale.h"
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#include "mozilla/intl/OSPreferences.h"
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#include "gfxPlatformFontList.h"
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#include "gfxTextRun.h"
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#include "gfxUserFontSet.h"
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#include "SharedFontList-impl.h"
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#include "nsCRT.h"
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#include "nsGkAtoms.h"
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#include "nsServiceManagerUtils.h"
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#include "nsUnicharUtils.h"
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#include "nsUnicodeProperties.h"
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#include "nsXULAppAPI.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/Likely.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/Mutex.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/StaticPrefs_gfx.h"
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#include "mozilla/StaticPrefs_layout.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/TimeStamp.h"
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#include "mozilla/dom/BlobImpl.h"
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#include "mozilla/dom/ContentChild.h"
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#include "mozilla/dom/ContentParent.h"
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#include "mozilla/dom/ContentProcessMessageManager.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/ipc/FileDescriptorUtils.h"
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#include "mozilla/ResultExtensions.h"
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#include "mozilla/TextUtils.h"
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#include "mozilla/Unused.h"
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#include "base/eintr_wrapper.h"
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#include <locale.h>
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using namespace mozilla;
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using mozilla::intl::Locale;
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using mozilla::intl::LocaleService;
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using mozilla::intl::OSPreferences;
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#define LOG_FONTLIST(args) \
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MOZ_LOG(gfxPlatform::GetLog(eGfxLog_fontlist), LogLevel::Debug, args)
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#define LOG_FONTLIST_ENABLED() \
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MOZ_LOG_TEST(gfxPlatform::GetLog(eGfxLog_fontlist), LogLevel::Debug)
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#define LOG_FONTINIT(args) \
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MOZ_LOG(gfxPlatform::GetLog(eGfxLog_fontinit), LogLevel::Debug, args)
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#define LOG_FONTINIT_ENABLED() \
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MOZ_LOG_TEST(gfxPlatform::GetLog(eGfxLog_fontinit), LogLevel::Debug)
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gfxPlatformFontList* gfxPlatformFontList::sPlatformFontList = nullptr;
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// Character ranges that require complex-script shaping support in the font,
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// and so should be masked out by ReadCMAP if the necessary layout tables
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// are not present.
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// Currently used by the Mac and FT2 implementations only, but probably should
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// be supported on Windows as well.
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const gfxFontEntry::ScriptRange gfxPlatformFontList::sComplexScriptRanges[] = {
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// Actually, now that harfbuzz supports presentation-forms shaping for
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// Arabic, we can render it without layout tables. So maybe we don't
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// want to mask the basic Arabic block here?
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// This affects the arabic-fallback-*.html reftests, which rely on
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// loading a font that *doesn't* have any GSUB table.
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{0x0600, 0x06FF, 1, {TRUETYPE_TAG('a', 'r', 'a', 'b'), 0, 0}},
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{0x0700, 0x074F, 1, {TRUETYPE_TAG('s', 'y', 'r', 'c'), 0, 0}},
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{0x0750, 0x077F, 1, {TRUETYPE_TAG('a', 'r', 'a', 'b'), 0, 0}},
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{0x08A0, 0x08FF, 1, {TRUETYPE_TAG('a', 'r', 'a', 'b'), 0, 0}},
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{0x0900,
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0x097F,
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2,
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{TRUETYPE_TAG('d', 'e', 'v', '2'), TRUETYPE_TAG('d', 'e', 'v', 'a'), 0}},
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{0x0980,
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0x09FF,
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2,
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{TRUETYPE_TAG('b', 'n', 'g', '2'), TRUETYPE_TAG('b', 'e', 'n', 'g'), 0}},
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{0x0A00,
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0x0A7F,
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2,
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{TRUETYPE_TAG('g', 'u', 'r', '2'), TRUETYPE_TAG('g', 'u', 'r', 'u'), 0}},
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{0x0A80,
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0x0AFF,
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2,
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{TRUETYPE_TAG('g', 'j', 'r', '2'), TRUETYPE_TAG('g', 'u', 'j', 'r'), 0}},
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{0x0B00,
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0x0B7F,
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2,
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{TRUETYPE_TAG('o', 'r', 'y', '2'), TRUETYPE_TAG('o', 'r', 'y', 'a'), 0}},
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{0x0B80,
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0x0BFF,
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2,
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{TRUETYPE_TAG('t', 'm', 'l', '2'), TRUETYPE_TAG('t', 'a', 'm', 'l'), 0}},
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{0x0C00,
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0x0C7F,
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2,
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{TRUETYPE_TAG('t', 'e', 'l', '2'), TRUETYPE_TAG('t', 'e', 'l', 'u'), 0}},
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{0x0C80,
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0x0CFF,
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2,
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{TRUETYPE_TAG('k', 'n', 'd', '2'), TRUETYPE_TAG('k', 'n', 'd', 'a'), 0}},
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{0x0D00,
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0x0D7F,
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2,
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{TRUETYPE_TAG('m', 'l', 'm', '2'), TRUETYPE_TAG('m', 'l', 'y', 'm'), 0}},
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{0x0D80, 0x0DFF, 1, {TRUETYPE_TAG('s', 'i', 'n', 'h'), 0, 0}},
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{0x0E80, 0x0EFF, 1, {TRUETYPE_TAG('l', 'a', 'o', ' '), 0, 0}},
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{0x0F00, 0x0FFF, 1, {TRUETYPE_TAG('t', 'i', 'b', 't'), 0, 0}},
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{0x1000,
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0x109f,
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2,
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{TRUETYPE_TAG('m', 'y', 'm', 'r'), TRUETYPE_TAG('m', 'y', 'm', '2'), 0}},
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{0x1780, 0x17ff, 1, {TRUETYPE_TAG('k', 'h', 'm', 'r'), 0, 0}},
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// Khmer Symbols (19e0..19ff) don't seem to need any special shaping
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{0xaa60,
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0xaa7f,
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2,
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{TRUETYPE_TAG('m', 'y', 'm', 'r'), TRUETYPE_TAG('m', 'y', 'm', '2'), 0}},
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// Thai seems to be "renderable" without AAT morphing tables
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{0, 0, 0, {0, 0, 0}} // terminator
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};
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// prefs for the font info loader
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#define FONT_LOADER_DELAY_PREF "gfx.font_loader.delay"
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#define FONT_LOADER_INTERVAL_PREF "gfx.font_loader.interval"
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static const char* kObservedPrefs[] = {"font.", "font.name-list.",
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"intl.accept_languages", // hmmmm...
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"layout.css.font-visibility.level",
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nullptr};
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static const char kFontSystemWhitelistPref[] = "font.system.whitelist";
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static const char kCJKFallbackOrderPref[] = "font.cjk_pref_fallback_order";
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// xxx - this can probably be eliminated by reworking pref font handling code
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static const char* gPrefLangNames[] = {
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#define FONT_PREF_LANG(enum_id_, str_, atom_id_) str_
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#include "gfxFontPrefLangList.h"
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#undef FONT_PREF_LANG
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};
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static_assert(MOZ_ARRAY_LENGTH(gPrefLangNames) == uint32_t(eFontPrefLang_Count),
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"size of pref lang name array doesn't match pref lang enum size");
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class gfxFontListPrefObserver final : public nsIObserver {
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~gfxFontListPrefObserver() = default;
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOBSERVER
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};
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static void FontListPrefChanged(const char* aPref, void* aData = nullptr) {
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// XXX this could be made to only clear out the cache for the prefs that were
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// changed but it probably isn't that big a deal.
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gfxPlatformFontList::PlatformFontList()->ClearLangGroupPrefFonts();
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gfxFontCache::GetCache()->AgeAllGenerations();
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if (aPref && !strcmp(aPref, "layout.css.font-visibility.level")) {
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gfxPlatformFontList::PlatformFontList()->SetVisibilityLevel();
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if (XRE_IsParentProcess()) {
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gfxPlatform::ForceGlobalReflow();
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}
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}
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}
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static gfxFontListPrefObserver* gFontListPrefObserver = nullptr;
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NS_IMPL_ISUPPORTS(gfxFontListPrefObserver, nsIObserver)
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#define LOCALES_CHANGED_TOPIC "intl:system-locales-changed"
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NS_IMETHODIMP
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gfxFontListPrefObserver::Observe(nsISupports* aSubject, const char* aTopic,
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const char16_t* aData) {
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NS_ASSERTION(!strcmp(aTopic, LOCALES_CHANGED_TOPIC), "invalid topic");
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FontListPrefChanged(nullptr);
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if (XRE_IsParentProcess()) {
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gfxPlatform::ForceGlobalReflow();
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}
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return NS_OK;
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}
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MOZ_DEFINE_MALLOC_SIZE_OF(FontListMallocSizeOf)
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NS_IMPL_ISUPPORTS(gfxPlatformFontList::MemoryReporter, nsIMemoryReporter)
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NS_IMETHODIMP
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gfxPlatformFontList::MemoryReporter::CollectReports(
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nsIHandleReportCallback* aHandleReport, nsISupports* aData,
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bool aAnonymize) {
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FontListSizes sizes;
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sizes.mFontListSize = 0;
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sizes.mFontTableCacheSize = 0;
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sizes.mCharMapsSize = 0;
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sizes.mLoaderSize = 0;
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sizes.mSharedSize = 0;
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gfxPlatformFontList::PlatformFontList()->AddSizeOfIncludingThis(
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&FontListMallocSizeOf, &sizes);
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MOZ_COLLECT_REPORT(
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"explicit/gfx/font-list", KIND_HEAP, UNITS_BYTES, sizes.mFontListSize,
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"Memory used to manage the list of font families and faces.");
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MOZ_COLLECT_REPORT(
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"explicit/gfx/font-charmaps", KIND_HEAP, UNITS_BYTES, sizes.mCharMapsSize,
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"Memory used to record the character coverage of individual fonts.");
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if (sizes.mFontTableCacheSize) {
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MOZ_COLLECT_REPORT(
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"explicit/gfx/font-tables", KIND_HEAP, UNITS_BYTES,
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sizes.mFontTableCacheSize,
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"Memory used for cached font metrics and layout tables.");
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}
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if (sizes.mLoaderSize) {
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MOZ_COLLECT_REPORT("explicit/gfx/font-loader", KIND_HEAP, UNITS_BYTES,
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sizes.mLoaderSize,
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"Memory used for (platform-specific) font loader.");
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}
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if (sizes.mSharedSize) {
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MOZ_COLLECT_REPORT(
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"font-list-shmem", KIND_NONHEAP, UNITS_BYTES, sizes.mSharedSize,
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"Shared memory for system font list and character coverage data.");
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}
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return NS_OK;
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}
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gfxPlatformFontList::gfxPlatformFontList(bool aNeedFullnamePostscriptNames)
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: mFontFamiliesMutex("gfxPlatformFontList::mFontFamiliesMutex"),
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mFontFamilies(64),
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mOtherFamilyNames(16),
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mSharedCmaps(8),
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mStartIndex(0),
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mNumFamilies(0),
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mFontlistInitCount(0),
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mFontFamilyWhitelistActive(false) {
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mOtherFamilyNamesInitialized = false;
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if (aNeedFullnamePostscriptNames) {
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mExtraNames = MakeUnique<ExtraNames>();
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}
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mFaceNameListsInitialized = false;
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mLangService = nsLanguageAtomService::GetService();
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LoadBadUnderlineList();
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// pref changes notification setup
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NS_ASSERTION(!gFontListPrefObserver,
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"There has been font list pref observer already");
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gFontListPrefObserver = new gfxFontListPrefObserver();
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NS_ADDREF(gFontListPrefObserver);
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Preferences::RegisterPrefixCallbacks(FontListPrefChanged, kObservedPrefs);
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nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
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if (obs) {
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obs->AddObserver(gFontListPrefObserver, LOCALES_CHANGED_TOPIC, false);
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}
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// Only the parent process listens for whitelist changes; it will then
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// notify its children to rebuild their font lists.
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if (XRE_IsParentProcess()) {
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Preferences::RegisterCallback(FontWhitelistPrefChanged,
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kFontSystemWhitelistPref);
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}
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RegisterStrongMemoryReporter(new MemoryReporter());
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}
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gfxPlatformFontList::~gfxPlatformFontList() {
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mSharedCmaps.Clear();
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ClearLangGroupPrefFonts();
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NS_ASSERTION(gFontListPrefObserver, "There is no font list pref observer");
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Preferences::UnregisterPrefixCallbacks(FontListPrefChanged, kObservedPrefs);
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nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
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if (obs) {
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obs->RemoveObserver(gFontListPrefObserver, LOCALES_CHANGED_TOPIC);
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}
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if (XRE_IsParentProcess()) {
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Preferences::UnregisterCallback(FontWhitelistPrefChanged,
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kFontSystemWhitelistPref);
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}
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NS_RELEASE(gFontListPrefObserver);
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}
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/* static */
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void gfxPlatformFontList::FontWhitelistPrefChanged(const char* aPref,
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void* aClosure) {
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MOZ_ASSERT(XRE_IsParentProcess());
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gfxPlatformFontList::PlatformFontList()->UpdateFontList();
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mozilla::dom::ContentParent::NotifyUpdatedFonts();
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}
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// number of CSS generic font families
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const uint32_t kNumGenerics = 5;
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void gfxPlatformFontList::ApplyWhitelist() {
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nsTArray<nsCString> list;
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gfxFontUtils::GetPrefsFontList(kFontSystemWhitelistPref, list);
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uint32_t numFonts = list.Length();
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mFontFamilyWhitelistActive = (numFonts > 0);
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if (!mFontFamilyWhitelistActive) {
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return;
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}
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nsTHashtable<nsCStringHashKey> familyNamesWhitelist;
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for (uint32_t i = 0; i < numFonts; i++) {
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nsAutoCString key;
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ToLowerCase(list[i], key);
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familyNamesWhitelist.PutEntry(key);
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}
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AutoTArray<RefPtr<gfxFontFamily>, 128> accepted;
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bool whitelistedFontFound = false;
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for (auto iter = mFontFamilies.Iter(); !iter.Done(); iter.Next()) {
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if (iter.Data()->IsHidden()) {
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// Hidden system fonts are exempt from whitelisting, but don't count
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// towards determining whether we "kept" any (user-visible) fonts
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accepted.AppendElement(iter.Data());
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continue;
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}
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nsAutoCString fontFamilyName(iter.Key());
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ToLowerCase(fontFamilyName);
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if (familyNamesWhitelist.Contains(fontFamilyName)) {
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accepted.AppendElement(iter.Data());
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whitelistedFontFound = true;
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}
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}
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if (!whitelistedFontFound) {
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// No whitelisted fonts found! Ignore the whitelist.
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return;
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}
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// Replace the original full list with the accepted subset.
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mFontFamilies.Clear();
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for (auto& f : accepted) {
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nsAutoCString fontFamilyName(f->Name());
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ToLowerCase(fontFamilyName);
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mFontFamilies.Put(fontFamilyName, std::move(f));
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}
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}
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void gfxPlatformFontList::ApplyWhitelist(
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nsTArray<fontlist::Family::InitData>& aFamilies) {
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nsTArray<nsCString> list;
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gfxFontUtils::GetPrefsFontList(kFontSystemWhitelistPref, list);
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mFontFamilyWhitelistActive = !list.IsEmpty();
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if (!mFontFamilyWhitelistActive) {
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return;
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}
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nsTHashtable<nsCStringHashKey> familyNamesWhitelist;
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for (const auto& item : list) {
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nsAutoCString key;
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ToLowerCase(item, key);
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familyNamesWhitelist.PutEntry(key);
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}
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AutoTArray<fontlist::Family::InitData, 128> accepted;
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bool keptNonHidden = false;
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for (auto& f : aFamilies) {
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if (f.mVisibility == FontVisibility::Hidden ||
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familyNamesWhitelist.Contains(f.mKey)) {
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accepted.AppendElement(f);
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if (f.mVisibility != FontVisibility::Hidden) {
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keptNonHidden = true;
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}
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}
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}
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if (!keptNonHidden) {
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// No (visible) families were whitelisted: ignore the whitelist
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// and just leave the fontlist unchanged.
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return;
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}
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aFamilies = std::move(accepted);
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}
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bool gfxPlatformFontList::FamilyInList(const nsACString& aName,
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const char* aList[], size_t aCount) {
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auto cmp = [&](const char* const aVal) -> int {
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return nsCaseInsensitiveUTF8StringComparator(aName.BeginReading(), aVal,
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aName.Length(), strlen(aVal));
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};
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size_t result;
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return BinarySearchIf(aList, 0, aCount, cmp, &result);
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}
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bool gfxPlatformFontList::AddWithLegacyFamilyName(const nsACString& aLegacyName,
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gfxFontEntry* aFontEntry,
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FontVisibility aVisibility) {
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bool added = false;
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nsAutoCString key;
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ToLowerCase(aLegacyName, key);
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gfxFontFamily* family = mOtherFamilyNames.GetWeak(key);
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if (!family) {
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family = CreateFontFamily(aLegacyName, aVisibility);
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family->SetHasStyles(true); // we don't want the family to search for
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// faces, we're adding them directly here
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mOtherFamilyNames.Put(key, RefPtr{family});
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added = true;
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}
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family->AddFontEntry(aFontEntry->Clone());
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return added;
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}
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nsresult gfxPlatformFontList::InitFontList() {
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// This shouldn't be called from stylo threads!
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MOZ_ASSERT(NS_IsMainThread());
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mFontlistInitCount++;
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if (LOG_FONTINIT_ENABLED()) {
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LOG_FONTINIT(("(fontinit) system fontlist initialization\n"));
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}
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// rebuilding fontlist so clear out font/word caches
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gfxFontCache* fontCache = gfxFontCache::GetCache();
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if (fontCache) {
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fontCache->AgeAllGenerations();
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fontCache->FlushShapedWordCaches();
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}
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gfxPlatform::PurgeSkiaFontCache();
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nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
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if (obs) {
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// Notify any current presContexts that fonts are being updated, so existing
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// caches will no longer be valid.
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obs->NotifyObservers(nullptr, "font-info-updated", nullptr);
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}
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mAliasTable.Clear();
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mLocalNameTable.Clear();
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CancelInitOtherFamilyNamesTask();
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MutexAutoLock lock(mFontFamiliesMutex);
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mFontFamilies.Clear();
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mOtherFamilyNames.Clear();
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mOtherFamilyNamesInitialized = false;
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if (mExtraNames) {
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mExtraNames->mFullnames.Clear();
|
|
mExtraNames->mPostscriptNames.Clear();
|
|
}
|
|
mFaceNameListsInitialized = false;
|
|
ClearLangGroupPrefFonts();
|
|
CancelLoader();
|
|
|
|
// Ensure that SetVisibilityLevel will clear the mCodepointsWithNoFonts set.
|
|
mVisibilityLevel = FontVisibility::Unknown;
|
|
SetVisibilityLevel();
|
|
|
|
sPlatformFontList = this;
|
|
|
|
// Try to initialize the cross-process shared font list if enabled by prefs,
|
|
// but not if we're running in Safe Mode.
|
|
if (StaticPrefs::gfx_e10s_font_list_shared_AtStartup() &&
|
|
!gfxPlatform::InSafeMode()) {
|
|
for (auto i = mFontEntries.Iter(); !i.Done(); i.Next()) {
|
|
if (!i.Data()) {
|
|
continue;
|
|
}
|
|
i.Data()->mShmemCharacterMap = nullptr;
|
|
i.Data()->mShmemFace = nullptr;
|
|
i.Data()->mFamilyName = ""_ns;
|
|
}
|
|
mFontEntries.Clear();
|
|
mShmemCharMaps.Clear();
|
|
bool oldSharedList = mSharedFontList != nullptr;
|
|
mSharedFontList.reset(new fontlist::FontList(mFontlistInitCount));
|
|
InitSharedFontListForPlatform();
|
|
if (mSharedFontList->Initialized()) {
|
|
if (mLocalNameTable.Count()) {
|
|
SharedFontList()->SetLocalNames(mLocalNameTable);
|
|
mLocalNameTable.Clear();
|
|
}
|
|
} else {
|
|
// something went wrong, fall back to in-process list
|
|
mSharedFontList.reset(nullptr);
|
|
}
|
|
if (oldSharedList) {
|
|
if (XRE_IsParentProcess()) {
|
|
// notify all children of the change
|
|
mozilla::dom::ContentParent::NotifyRebuildFontList();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!SharedFontList()) {
|
|
nsresult rv = InitFontListForPlatform();
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
ApplyWhitelist();
|
|
}
|
|
|
|
// Set up mDefaultFontEntry as a "last resort" default that we can use
|
|
// to avoid crashing if the font list is otherwise unusable.
|
|
gfxFontStyle defStyle;
|
|
FontFamily fam = GetDefaultFont(&defStyle);
|
|
if (fam.mIsShared) {
|
|
auto face = fam.mShared->FindFaceForStyle(SharedFontList(), defStyle);
|
|
if (!face) {
|
|
mDefaultFontEntry = nullptr;
|
|
} else {
|
|
mDefaultFontEntry = GetOrCreateFontEntry(face, fam.mShared);
|
|
}
|
|
} else {
|
|
mDefaultFontEntry = fam.mUnshared->FindFontForStyle(defStyle);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void gfxPlatformFontList::SetVisibilityLevel() {
|
|
FontVisibility newLevel = FontVisibility(
|
|
std::min(int32_t(FontVisibility::User),
|
|
std::max(int32_t(FontVisibility::Base),
|
|
StaticPrefs::layout_css_font_visibility_level())));
|
|
if (newLevel != mVisibilityLevel) {
|
|
mVisibilityLevel = newLevel;
|
|
// (Re-)initialize ranges of characters for which system-wide font search
|
|
// should be skipped
|
|
mCodepointsWithNoFonts.reset();
|
|
mCodepointsWithNoFonts.SetRange(0, 0x1f); // C0 controls
|
|
mCodepointsWithNoFonts.SetRange(0x7f, 0x9f); // C1 controls
|
|
mCodepointsWithNoFonts.SetRange(0xE000, 0xF8FF); // PUA
|
|
mCodepointsWithNoFonts.SetRange(0xF0000, 0x10FFFD); // Supplementary PUA
|
|
mCodepointsWithNoFonts.SetRange(0xfdd0, 0xfdef); // noncharacters
|
|
for (unsigned i = 0; i <= 0x100000; i += 0x10000) {
|
|
mCodepointsWithNoFonts.SetRange(i + 0xfffe, i + 0xffff); // noncharacters
|
|
}
|
|
// Forget any font family we previously chose for U+FFFD.
|
|
mReplacementCharFallbackFamily = FontFamily();
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::FontListChanged() {
|
|
MOZ_ASSERT(!XRE_IsParentProcess());
|
|
if (SharedFontList()) {
|
|
// If we're using a shared local face-name list, this may have changed
|
|
// such that existing font entries held by user font sets are no longer
|
|
// safe to use: ensure they all get flushed.
|
|
RebuildLocalFonts(/*aForgetLocalFaces*/ true);
|
|
}
|
|
ForceGlobalReflow();
|
|
}
|
|
|
|
void gfxPlatformFontList::GenerateFontListKey(const nsACString& aKeyName,
|
|
nsACString& aResult) {
|
|
aResult = aKeyName;
|
|
ToLowerCase(aResult);
|
|
}
|
|
|
|
// Used if a stylo thread wants to trigger InitOtherFamilyNames in the main
|
|
// process: we can't do IPC from the stylo thread so we post this to the main
|
|
// thread instead.
|
|
class InitOtherFamilyNamesForStylo : public mozilla::Runnable {
|
|
public:
|
|
explicit InitOtherFamilyNamesForStylo(bool aDeferOtherFamilyNamesLoading)
|
|
: Runnable("gfxPlatformFontList::InitOtherFamilyNamesForStylo"),
|
|
mDefer(aDeferOtherFamilyNamesLoading) {}
|
|
|
|
NS_IMETHOD Run() override {
|
|
auto pfl = gfxPlatformFontList::PlatformFontList();
|
|
auto list = pfl->SharedFontList();
|
|
if (!list) {
|
|
return NS_OK;
|
|
}
|
|
dom::ContentChild::GetSingleton()->SendInitOtherFamilyNames(
|
|
list->GetGeneration(), mDefer, &pfl->mOtherFamilyNamesInitialized);
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
bool mDefer;
|
|
};
|
|
|
|
#define OTHERNAMES_TIMEOUT 200
|
|
|
|
void gfxPlatformFontList::InitOtherFamilyNames(
|
|
bool aDeferOtherFamilyNamesLoading) {
|
|
if (mOtherFamilyNamesInitialized) {
|
|
return;
|
|
}
|
|
|
|
if (SharedFontList() && !XRE_IsParentProcess()) {
|
|
if (NS_IsMainThread()) {
|
|
dom::ContentChild::GetSingleton()->SendInitOtherFamilyNames(
|
|
SharedFontList()->GetGeneration(), aDeferOtherFamilyNamesLoading,
|
|
&mOtherFamilyNamesInitialized);
|
|
} else {
|
|
NS_DispatchToMainThread(
|
|
new InitOtherFamilyNamesForStylo(aDeferOtherFamilyNamesLoading));
|
|
}
|
|
return;
|
|
}
|
|
|
|
// If the font loader delay has been set to zero, we don't defer loading
|
|
// additional family names (regardless of the aDefer... parameter), as we
|
|
// take this to mean availability of font info is to be prioritized over
|
|
// potential startup perf or main-thread jank.
|
|
// (This is used so we can reliably run reftests that depend on localized
|
|
// font-family names being available.)
|
|
if (aDeferOtherFamilyNamesLoading &&
|
|
Preferences::GetUint(FONT_LOADER_DELAY_PREF) > 0) {
|
|
if (!mPendingOtherFamilyNameTask) {
|
|
RefPtr<mozilla::CancelableRunnable> task =
|
|
new InitOtherFamilyNamesRunnable();
|
|
mPendingOtherFamilyNameTask = task;
|
|
NS_DispatchToMainThreadQueue(task.forget(), EventQueuePriority::Idle);
|
|
}
|
|
} else {
|
|
InitOtherFamilyNamesInternal(false);
|
|
}
|
|
}
|
|
|
|
// time limit for loading facename lists (ms)
|
|
#define NAMELIST_TIMEOUT 200
|
|
|
|
gfxFontEntry* gfxPlatformFontList::SearchFamiliesForFaceName(
|
|
const nsACString& aFaceName) {
|
|
TimeStamp start = TimeStamp::Now();
|
|
bool timedOut = false;
|
|
// if mFirstChar is not 0, only load facenames for families
|
|
// that start with this character
|
|
char16_t firstChar = 0;
|
|
gfxFontEntry* lookup = nullptr;
|
|
|
|
// iterate over familes starting with the same letter
|
|
firstChar = ToLowerCase(aFaceName.CharAt(0));
|
|
|
|
for (auto iter = mFontFamilies.Iter(); !iter.Done(); iter.Next()) {
|
|
nsCStringHashKey::KeyType key = iter.Key();
|
|
RefPtr<gfxFontFamily>& family = iter.Data();
|
|
|
|
// when filtering, skip names that don't start with the filter character
|
|
if (firstChar && ToLowerCase(key.CharAt(0)) != firstChar) {
|
|
continue;
|
|
}
|
|
|
|
family->ReadFaceNames(this, NeedFullnamePostscriptNames());
|
|
|
|
TimeDuration elapsed = TimeStamp::Now() - start;
|
|
if (elapsed.ToMilliseconds() > NAMELIST_TIMEOUT) {
|
|
timedOut = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
lookup = FindFaceName(aFaceName);
|
|
|
|
TimeStamp end = TimeStamp::Now();
|
|
Telemetry::AccumulateTimeDelta(Telemetry::FONTLIST_INITFACENAMELISTS, start,
|
|
end);
|
|
if (LOG_FONTINIT_ENABLED()) {
|
|
TimeDuration elapsed = end - start;
|
|
LOG_FONTINIT(("(fontinit) SearchFamiliesForFaceName took %8.2f ms %s %s",
|
|
elapsed.ToMilliseconds(), (lookup ? "found name" : ""),
|
|
(timedOut ? "timeout" : "")));
|
|
}
|
|
|
|
return lookup;
|
|
}
|
|
|
|
gfxFontEntry* gfxPlatformFontList::FindFaceName(const nsACString& aFaceName) {
|
|
gfxFontEntry* lookup;
|
|
|
|
// lookup in name lookup tables, return null if not found
|
|
if (mExtraNames &&
|
|
((lookup = mExtraNames->mPostscriptNames.GetWeak(aFaceName)) ||
|
|
(lookup = mExtraNames->mFullnames.GetWeak(aFaceName)))) {
|
|
return lookup;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
gfxFontEntry* gfxPlatformFontList::LookupInFaceNameLists(
|
|
const nsACString& aFaceName) {
|
|
gfxFontEntry* lookup = nullptr;
|
|
|
|
// initialize facename lookup tables if needed
|
|
// note: this can terminate early or time out, in which case
|
|
// mFaceNameListsInitialized remains false
|
|
if (!mFaceNameListsInitialized) {
|
|
lookup = SearchFamiliesForFaceName(aFaceName);
|
|
if (lookup) {
|
|
return lookup;
|
|
}
|
|
}
|
|
|
|
// lookup in name lookup tables, return null if not found
|
|
if (!(lookup = FindFaceName(aFaceName))) {
|
|
// names not completely initialized, so keep track of lookup misses
|
|
if (!mFaceNameListsInitialized) {
|
|
if (!mFaceNamesMissed) {
|
|
mFaceNamesMissed = MakeUnique<nsTHashtable<nsCStringHashKey>>(2);
|
|
}
|
|
mFaceNamesMissed->PutEntry(aFaceName);
|
|
}
|
|
}
|
|
|
|
return lookup;
|
|
}
|
|
|
|
gfxFontEntry* gfxPlatformFontList::LookupInSharedFaceNameList(
|
|
const nsACString& aFaceName, WeightRange aWeightForEntry,
|
|
StretchRange aStretchForEntry, SlantStyleRange aStyleForEntry) {
|
|
nsAutoCString keyName(aFaceName);
|
|
ToLowerCase(keyName);
|
|
fontlist::FontList* list = SharedFontList();
|
|
fontlist::Family* family = nullptr;
|
|
fontlist::Face* face = nullptr;
|
|
if (list->NumLocalFaces()) {
|
|
fontlist::LocalFaceRec* rec = list->FindLocalFace(keyName);
|
|
if (rec) {
|
|
auto* families = list->Families();
|
|
if (families) {
|
|
family = &families[rec->mFamilyIndex];
|
|
face = static_cast<fontlist::Face*>(
|
|
family->Faces(list)[rec->mFaceIndex].ToPtr(list));
|
|
}
|
|
}
|
|
} else {
|
|
list->SearchForLocalFace(keyName, &family, &face);
|
|
}
|
|
if (!face || !family) {
|
|
return nullptr;
|
|
}
|
|
gfxFontEntry* fe = CreateFontEntry(face, family);
|
|
if (fe) {
|
|
fe->mIsLocalUserFont = true;
|
|
fe->mWeightRange = aWeightForEntry;
|
|
fe->mStretchRange = aStretchForEntry;
|
|
fe->mStyleRange = aStyleForEntry;
|
|
}
|
|
return fe;
|
|
}
|
|
|
|
void gfxPlatformFontList::PreloadNamesList() {
|
|
AutoTArray<nsCString, 10> preloadFonts;
|
|
gfxFontUtils::GetPrefsFontList("font.preload-names-list", preloadFonts);
|
|
|
|
uint32_t numFonts = preloadFonts.Length();
|
|
for (uint32_t i = 0; i < numFonts; i++) {
|
|
nsAutoCString key;
|
|
GenerateFontListKey(preloadFonts[i], key);
|
|
|
|
// only search canonical names!
|
|
gfxFontFamily* familyEntry = mFontFamilies.GetWeak(key);
|
|
if (familyEntry) {
|
|
familyEntry->ReadOtherFamilyNames(this);
|
|
}
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::LoadBadUnderlineList() {
|
|
gfxFontUtils::GetPrefsFontList("font.blacklist.underline_offset",
|
|
mBadUnderlineFamilyNames);
|
|
for (auto& fam : mBadUnderlineFamilyNames) {
|
|
ToLowerCase(fam);
|
|
}
|
|
mBadUnderlineFamilyNames.Compact();
|
|
mBadUnderlineFamilyNames.Sort();
|
|
}
|
|
|
|
void gfxPlatformFontList::UpdateFontList() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
InitFontList();
|
|
RebuildLocalFonts();
|
|
}
|
|
|
|
bool gfxPlatformFontList::IsVisibleToCSS(const gfxFontFamily& aFamily) const {
|
|
return aFamily.Visibility() <= mVisibilityLevel;
|
|
}
|
|
|
|
bool gfxPlatformFontList::IsVisibleToCSS(
|
|
const fontlist::Family& aFamily) const {
|
|
return aFamily.Visibility() <= mVisibilityLevel;
|
|
}
|
|
|
|
void gfxPlatformFontList::GetFontList(nsAtom* aLangGroup,
|
|
const nsACString& aGenericFamily,
|
|
nsTArray<nsString>& aListOfFonts) {
|
|
if (SharedFontList()) {
|
|
fontlist::FontList* list = SharedFontList();
|
|
const fontlist::Family* families = list->Families();
|
|
if (families) {
|
|
for (uint32_t i = 0; i < list->NumFamilies(); i++) {
|
|
auto& f = families[i];
|
|
if (!IsVisibleToCSS(f)) {
|
|
continue;
|
|
}
|
|
// XXX TODO: filter families for aGenericFamily, if supported by
|
|
// platform
|
|
aListOfFonts.AppendElement(
|
|
NS_ConvertUTF8toUTF16(f.DisplayName().AsString(list)));
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
MutexAutoLock lock(mFontFamiliesMutex);
|
|
for (auto iter = mFontFamilies.Iter(); !iter.Done(); iter.Next()) {
|
|
RefPtr<gfxFontFamily>& family = iter.Data();
|
|
if (!IsVisibleToCSS(*family)) {
|
|
continue;
|
|
}
|
|
if (family->FilterForFontList(aLangGroup, aGenericFamily)) {
|
|
nsAutoCString localizedFamilyName;
|
|
family->LocalizedName(localizedFamilyName);
|
|
aListOfFonts.AppendElement(NS_ConvertUTF8toUTF16(localizedFamilyName));
|
|
}
|
|
}
|
|
|
|
aListOfFonts.Sort();
|
|
aListOfFonts.Compact();
|
|
}
|
|
|
|
void gfxPlatformFontList::GetFontFamilyList(
|
|
nsTArray<RefPtr<gfxFontFamily>>& aFamilyArray) {
|
|
for (auto iter = mFontFamilies.Iter(); !iter.Done(); iter.Next()) {
|
|
RefPtr<gfxFontFamily>& family = iter.Data();
|
|
aFamilyArray.AppendElement(family);
|
|
}
|
|
}
|
|
|
|
gfxFontEntry* gfxPlatformFontList::SystemFindFontForChar(
|
|
uint32_t aCh, uint32_t aNextCh, Script aRunScript,
|
|
const gfxFontStyle* aStyle, FontVisibility* aVisibility,
|
|
FontMatchingStats* aFontMatchingStats) {
|
|
MOZ_ASSERT(!mCodepointsWithNoFonts.test(aCh),
|
|
"don't call for codepoints already known to be unsupported");
|
|
|
|
gfxFontEntry* fontEntry = nullptr;
|
|
|
|
// Try to short-circuit font fallback for U+FFFD, used to represent
|
|
// encoding errors: just use cached family from last time U+FFFD was seen.
|
|
// This helps speed up pages with lots of encoding errors, binary-as-text,
|
|
// etc.
|
|
if (aCh == 0xFFFD) {
|
|
if (mReplacementCharFallbackFamily.mIsShared &&
|
|
mReplacementCharFallbackFamily.mShared) {
|
|
fontlist::Face* face =
|
|
mReplacementCharFallbackFamily.mShared->FindFaceForStyle(
|
|
SharedFontList(), *aStyle);
|
|
if (face) {
|
|
fontEntry =
|
|
GetOrCreateFontEntry(face, mReplacementCharFallbackFamily.mShared);
|
|
*aVisibility = mReplacementCharFallbackFamily.mShared->Visibility();
|
|
}
|
|
} else if (!mReplacementCharFallbackFamily.mIsShared &&
|
|
mReplacementCharFallbackFamily.mUnshared) {
|
|
fontEntry =
|
|
mReplacementCharFallbackFamily.mUnshared->FindFontForStyle(*aStyle);
|
|
*aVisibility = mReplacementCharFallbackFamily.mUnshared->Visibility();
|
|
}
|
|
|
|
// this should never fail, as we must have found U+FFFD in order to set
|
|
// mReplacementCharFallbackFamily at all, but better play it safe
|
|
if (fontEntry && fontEntry->HasCharacter(aCh)) {
|
|
return fontEntry;
|
|
}
|
|
}
|
|
|
|
TimeStamp start = TimeStamp::Now();
|
|
|
|
// search commonly available fonts
|
|
bool common = true;
|
|
FontFamily fallbackFamily;
|
|
fontEntry =
|
|
CommonFontFallback(aCh, aNextCh, aRunScript, aStyle, fallbackFamily);
|
|
|
|
// if didn't find a font, do system-wide fallback (except for specials)
|
|
uint32_t cmapCount = 0;
|
|
if (!fontEntry) {
|
|
common = false;
|
|
fontEntry = GlobalFontFallback(aCh, aRunScript, aStyle, cmapCount,
|
|
fallbackFamily, aFontMatchingStats);
|
|
}
|
|
TimeDuration elapsed = TimeStamp::Now() - start;
|
|
|
|
LogModule* log = gfxPlatform::GetLog(eGfxLog_textrun);
|
|
|
|
if (MOZ_UNLIKELY(MOZ_LOG_TEST(log, LogLevel::Warning))) {
|
|
Script script = mozilla::unicode::GetScriptCode(aCh);
|
|
MOZ_LOG(log, LogLevel::Warning,
|
|
("(textrun-systemfallback-%s) char: u+%6.6x "
|
|
"script: %d match: [%s]"
|
|
" time: %dus cmaps: %d\n",
|
|
(common ? "common" : "global"), aCh, static_cast<int>(script),
|
|
(fontEntry ? fontEntry->Name().get() : "<none>"),
|
|
int32_t(elapsed.ToMicroseconds()), cmapCount));
|
|
}
|
|
|
|
// no match? add to set of non-matching codepoints
|
|
if (!fontEntry) {
|
|
mCodepointsWithNoFonts.set(aCh);
|
|
} else {
|
|
*aVisibility = fallbackFamily.mIsShared
|
|
? fallbackFamily.mShared->Visibility()
|
|
: fallbackFamily.mUnshared->Visibility();
|
|
if (aCh == 0xFFFD) {
|
|
mReplacementCharFallbackFamily = fallbackFamily;
|
|
}
|
|
}
|
|
|
|
// track system fallback time
|
|
static bool first = true;
|
|
int32_t intElapsed =
|
|
int32_t(first ? elapsed.ToMilliseconds() : elapsed.ToMicroseconds());
|
|
Telemetry::Accumulate((first ? Telemetry::SYSTEM_FONT_FALLBACK_FIRST
|
|
: Telemetry::SYSTEM_FONT_FALLBACK),
|
|
intElapsed);
|
|
first = false;
|
|
|
|
// track the script for which fallback occurred (incremented one make it
|
|
// 1-based)
|
|
Telemetry::Accumulate(Telemetry::SYSTEM_FONT_FALLBACK_SCRIPT,
|
|
int(aRunScript) + 1);
|
|
|
|
return fontEntry;
|
|
}
|
|
|
|
#define NUM_FALLBACK_FONTS 8
|
|
|
|
gfxFontEntry* gfxPlatformFontList::CommonFontFallback(
|
|
uint32_t aCh, uint32_t aNextCh, Script aRunScript,
|
|
const gfxFontStyle* aMatchStyle, FontFamily& aMatchedFamily) {
|
|
AutoTArray<const char*, NUM_FALLBACK_FONTS> defaultFallbacks;
|
|
gfxPlatform::GetPlatform()->GetCommonFallbackFonts(aCh, aNextCh, aRunScript,
|
|
defaultFallbacks);
|
|
GlobalFontMatch data(aCh, *aMatchStyle);
|
|
if (SharedFontList()) {
|
|
for (const auto name : defaultFallbacks) {
|
|
fontlist::Family* family = FindSharedFamily(nsDependentCString(name));
|
|
if (!family || !IsVisibleToCSS(*family)) {
|
|
continue;
|
|
}
|
|
family->SearchAllFontsForChar(SharedFontList(), &data);
|
|
if (data.mBestMatch) {
|
|
aMatchedFamily = FontFamily(family);
|
|
return data.mBestMatch;
|
|
}
|
|
}
|
|
} else {
|
|
for (const auto name : defaultFallbacks) {
|
|
gfxFontFamily* fallback =
|
|
FindFamilyByCanonicalName(nsDependentCString(name));
|
|
if (!fallback || !IsVisibleToCSS(*fallback)) {
|
|
continue;
|
|
}
|
|
fallback->FindFontForChar(&data);
|
|
if (data.mBestMatch) {
|
|
aMatchedFamily = FontFamily(fallback);
|
|
return data.mBestMatch;
|
|
}
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
gfxFontEntry* gfxPlatformFontList::GlobalFontFallback(
|
|
const uint32_t aCh, Script aRunScript, const gfxFontStyle* aMatchStyle,
|
|
uint32_t& aCmapCount, FontFamily& aMatchedFamily,
|
|
FontMatchingStats* aFontMatchingStats) {
|
|
bool useCmaps = IsFontFamilyWhitelistActive() ||
|
|
gfxPlatform::GetPlatform()->UseCmapsDuringSystemFallback();
|
|
FontVisibility rejectedFallbackVisibility = FontVisibility::Unknown;
|
|
if (!useCmaps) {
|
|
// Allow platform-specific fallback code to try and find a usable font
|
|
gfxFontEntry* fe = PlatformGlobalFontFallback(aCh, aRunScript, aMatchStyle,
|
|
aMatchedFamily);
|
|
if (fe) {
|
|
if (aMatchedFamily.mIsShared) {
|
|
if (IsVisibleToCSS(*aMatchedFamily.mShared)) {
|
|
return fe;
|
|
}
|
|
rejectedFallbackVisibility = aMatchedFamily.mShared->Visibility();
|
|
} else {
|
|
if (IsVisibleToCSS(*aMatchedFamily.mUnshared)) {
|
|
return fe;
|
|
}
|
|
rejectedFallbackVisibility = aMatchedFamily.mUnshared->Visibility();
|
|
}
|
|
}
|
|
}
|
|
|
|
// otherwise, try to find it among local fonts
|
|
GlobalFontMatch data(aCh, *aMatchStyle);
|
|
if (SharedFontList()) {
|
|
fontlist::Family* families = SharedFontList()->Families();
|
|
if (families) {
|
|
for (uint32_t i = 0; i < SharedFontList()->NumFamilies(); i++) {
|
|
fontlist::Family& family = families[i];
|
|
if (!IsVisibleToCSS(family)) {
|
|
continue;
|
|
}
|
|
family.SearchAllFontsForChar(SharedFontList(), &data);
|
|
if (data.mMatchDistance == 0.0) {
|
|
// no better style match is possible, so stop searching
|
|
break;
|
|
}
|
|
}
|
|
if (data.mBestMatch) {
|
|
aMatchedFamily = FontFamily(data.mMatchedSharedFamily);
|
|
return data.mBestMatch;
|
|
}
|
|
}
|
|
} else {
|
|
// iterate over all font families to find a font that support the
|
|
// character
|
|
for (auto iter = mFontFamilies.Iter(); !iter.Done(); iter.Next()) {
|
|
RefPtr<gfxFontFamily>& family = iter.Data();
|
|
if (!IsVisibleToCSS(*family)) {
|
|
continue;
|
|
}
|
|
// evaluate all fonts in this family for a match
|
|
family->FindFontForChar(&data);
|
|
if (data.mMatchDistance == 0.0) {
|
|
// no better style match is possible, so stop searching
|
|
break;
|
|
}
|
|
}
|
|
|
|
aCmapCount = data.mCmapsTested;
|
|
if (data.mBestMatch) {
|
|
aMatchedFamily = FontFamily(data.mMatchedFamily);
|
|
return data.mBestMatch;
|
|
}
|
|
}
|
|
|
|
if (aFontMatchingStats) {
|
|
if (rejectedFallbackVisibility == FontVisibility::LangPack) {
|
|
aFontMatchingStats->mFallbacks |= FallbackTypes::MissingFontLangPack;
|
|
} else if (rejectedFallbackVisibility == FontVisibility::User) {
|
|
aFontMatchingStats->mFallbacks |= FallbackTypes::MissingFontUser;
|
|
}
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
gfxFontFamily* gfxPlatformFontList::CheckFamily(gfxFontFamily* aFamily) {
|
|
if (aFamily && !aFamily->HasStyles()) {
|
|
aFamily->FindStyleVariations();
|
|
}
|
|
|
|
if (aFamily && aFamily->GetFontList().Length() == 0) {
|
|
// failed to load any faces for this family, so discard it
|
|
nsAutoCString key;
|
|
GenerateFontListKey(aFamily->Name(), key);
|
|
mFontFamilies.Remove(key);
|
|
return nullptr;
|
|
}
|
|
|
|
return aFamily;
|
|
}
|
|
|
|
bool gfxPlatformFontList::FindAndAddFamilies(
|
|
StyleGenericFontFamily aGeneric, const nsACString& aFamily,
|
|
nsTArray<FamilyAndGeneric>* aOutput, FindFamiliesFlags aFlags,
|
|
gfxFontStyle* aStyle, gfxFloat aDevToCssSize) {
|
|
nsAutoCString key;
|
|
GenerateFontListKey(aFamily, key);
|
|
|
|
bool allowHidden = bool(aFlags & FindFamiliesFlags::eSearchHiddenFamilies);
|
|
if (SharedFontList()) {
|
|
fontlist::Family* family = SharedFontList()->FindFamily(key);
|
|
// If not found, and other family names have not yet been initialized,
|
|
// initialize the rest of the list and try again. This is done lazily
|
|
// since reading name table entries is expensive.
|
|
// Although ASCII localized family names are possible they don't occur
|
|
// in practice, so avoid pulling in names at startup.
|
|
if (!family && !mOtherFamilyNamesInitialized) {
|
|
bool triggerLoading = true;
|
|
bool mayDefer =
|
|
!(aFlags & FindFamiliesFlags::eForceOtherFamilyNamesLoading);
|
|
if (IsAscii(key)) {
|
|
// If `key` is an ASCII name, only trigger loading if it includes a
|
|
// space, and the "base" name (up to the last space) exists as a known
|
|
// family, so that this might be a legacy styled-family name.
|
|
const char* data = key.BeginReading();
|
|
int32_t index = key.Length();
|
|
while (--index > 0) {
|
|
if (data[index] == ' ') {
|
|
break;
|
|
}
|
|
}
|
|
nsAutoCString base(Substring(key, 0, index));
|
|
if (index > 0 && SharedFontList()->FindFamily(base)) {
|
|
mayDefer = false;
|
|
} else {
|
|
triggerLoading = false;
|
|
}
|
|
}
|
|
if (triggerLoading) {
|
|
InitOtherFamilyNames(mayDefer);
|
|
family = SharedFontList()->FindFamily(key);
|
|
}
|
|
if (!family && !mOtherFamilyNamesInitialized &&
|
|
!(aFlags & FindFamiliesFlags::eNoAddToNamesMissedWhenSearching)) {
|
|
// localized family names load timed out, add name to list of
|
|
// names to check after localized names are loaded
|
|
if (!mOtherNamesMissed) {
|
|
mOtherNamesMissed = MakeUnique<nsTHashtable<nsCStringHashKey>>(2);
|
|
}
|
|
mOtherNamesMissed->PutEntry(key);
|
|
}
|
|
}
|
|
// Check whether the family we found is actually allowed to be looked up,
|
|
// according to current font-visibility prefs.
|
|
if (family &&
|
|
(IsVisibleToCSS(*family) || (allowHidden && family->IsHidden()))) {
|
|
aOutput->AppendElement(FamilyAndGeneric(family, aGeneric));
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
NS_ASSERTION(mFontFamilies.Count() != 0,
|
|
"system font list was not initialized correctly");
|
|
|
|
// lookup in canonical (i.e. English) family name list
|
|
gfxFontFamily* familyEntry = mFontFamilies.GetWeak(key);
|
|
if (familyEntry && !IsVisibleToCSS(*familyEntry) &&
|
|
!(allowHidden && familyEntry->IsHidden())) {
|
|
return false;
|
|
}
|
|
|
|
// if not found, lookup in other family names list (mostly localized names)
|
|
if (!familyEntry) {
|
|
familyEntry = mOtherFamilyNames.GetWeak(key);
|
|
}
|
|
if (familyEntry && !IsVisibleToCSS(*familyEntry) &&
|
|
!(allowHidden && familyEntry->IsHidden())) {
|
|
return false;
|
|
}
|
|
|
|
// if still not found and other family names not yet fully initialized,
|
|
// initialize the rest of the list and try again. this is done lazily
|
|
// since reading name table entries is expensive.
|
|
// although ASCII localized family names are possible they don't occur
|
|
// in practice so avoid pulling in names at startup
|
|
if (!familyEntry && !mOtherFamilyNamesInitialized && !IsAscii(aFamily)) {
|
|
InitOtherFamilyNames(
|
|
!(aFlags & FindFamiliesFlags::eForceOtherFamilyNamesLoading));
|
|
familyEntry = mOtherFamilyNames.GetWeak(key);
|
|
if (!familyEntry && !mOtherFamilyNamesInitialized &&
|
|
!(aFlags & FindFamiliesFlags::eNoAddToNamesMissedWhenSearching)) {
|
|
// localized family names load timed out, add name to list of
|
|
// names to check after localized names are loaded
|
|
if (!mOtherNamesMissed) {
|
|
mOtherNamesMissed = MakeUnique<nsTHashtable<nsCStringHashKey>>(2);
|
|
}
|
|
mOtherNamesMissed->PutEntry(key);
|
|
}
|
|
if (familyEntry && !IsVisibleToCSS(*familyEntry) &&
|
|
!(allowHidden && familyEntry->IsHidden())) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
familyEntry = CheckFamily(familyEntry);
|
|
|
|
// If we failed to find the requested family, check for a space in the
|
|
// name; if found, and if the "base" name (up to the last space) exists
|
|
// as a family, then this might be a legacy GDI-style family name for
|
|
// an additional weight/width. Try searching the faces of the base family
|
|
// and create any corresponding legacy families.
|
|
if (!familyEntry &&
|
|
!(aFlags & FindFamiliesFlags::eNoSearchForLegacyFamilyNames)) {
|
|
// We don't have nsAString::RFindChar, so look for a space manually
|
|
const char* data = aFamily.BeginReading();
|
|
int32_t index = aFamily.Length();
|
|
while (--index > 0) {
|
|
if (data[index] == ' ') {
|
|
break;
|
|
}
|
|
}
|
|
if (index > 0) {
|
|
gfxFontFamily* base =
|
|
FindUnsharedFamily(Substring(aFamily, 0, index),
|
|
FindFamiliesFlags::eNoSearchForLegacyFamilyNames);
|
|
// If we found the "base" family name, and if it has members with
|
|
// legacy names, this will add corresponding font-family entries to
|
|
// the mOtherFamilyNames list; then retry the legacy-family search.
|
|
if (base && base->CheckForLegacyFamilyNames(this)) {
|
|
familyEntry = mOtherFamilyNames.GetWeak(key);
|
|
}
|
|
if (familyEntry && !IsVisibleToCSS(*familyEntry) &&
|
|
!(allowHidden && familyEntry->IsHidden())) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (familyEntry) {
|
|
aOutput->AppendElement(FamilyAndGeneric(familyEntry, aGeneric));
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
fontlist::Family* gfxPlatformFontList::FindSharedFamily(
|
|
const nsACString& aFamily, FindFamiliesFlags aFlags, gfxFontStyle* aStyle,
|
|
gfxFloat aDevToCss) {
|
|
if (!SharedFontList()) {
|
|
return nullptr;
|
|
}
|
|
AutoTArray<FamilyAndGeneric, 1> families;
|
|
if (!FindAndAddFamilies(StyleGenericFontFamily::None, aFamily, &families,
|
|
aFlags, aStyle, aDevToCss) ||
|
|
!families[0].mFamily.mIsShared) {
|
|
return nullptr;
|
|
}
|
|
fontlist::Family* family = families[0].mFamily.mShared;
|
|
if (!family->IsInitialized()) {
|
|
if (!InitializeFamily(family)) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
return family;
|
|
}
|
|
|
|
class InitializeFamilyRunnable : public mozilla::Runnable {
|
|
public:
|
|
explicit InitializeFamilyRunnable(uint32_t aFamilyIndex)
|
|
: Runnable("gfxPlatformFontList::InitializeFamilyRunnable"),
|
|
mIndex(aFamilyIndex) {}
|
|
|
|
NS_IMETHOD Run() override {
|
|
auto list = gfxPlatformFontList::PlatformFontList()->SharedFontList();
|
|
if (!list) {
|
|
return NS_OK;
|
|
}
|
|
if (mIndex >= list->NumFamilies()) {
|
|
// Out of range? Maybe the list got reinitialized since this request
|
|
// was posted - just ignore it.
|
|
return NS_OK;
|
|
}
|
|
dom::ContentChild::GetSingleton()->SendInitializeFamily(
|
|
list->GetGeneration(), mIndex);
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
uint32_t mIndex;
|
|
};
|
|
|
|
bool gfxPlatformFontList::InitializeFamily(fontlist::Family* aFamily) {
|
|
MOZ_ASSERT(SharedFontList());
|
|
auto list = SharedFontList();
|
|
if (!XRE_IsParentProcess()) {
|
|
auto* families = list->Families();
|
|
if (!families) {
|
|
return false;
|
|
}
|
|
uint32_t index = aFamily - families;
|
|
MOZ_ASSERT(index < list->NumFamilies());
|
|
if (NS_IsMainThread()) {
|
|
dom::ContentChild::GetSingleton()->SendInitializeFamily(
|
|
list->GetGeneration(), index);
|
|
} else {
|
|
NS_DispatchToMainThread(new InitializeFamilyRunnable(index));
|
|
}
|
|
return aFamily->IsInitialized();
|
|
}
|
|
AutoTArray<fontlist::Face::InitData, 16> faceList;
|
|
GetFacesInitDataForFamily(aFamily, faceList);
|
|
aFamily->AddFaces(list, faceList);
|
|
return aFamily->IsInitialized();
|
|
}
|
|
|
|
gfxFontEntry* gfxPlatformFontList::FindFontForFamily(
|
|
const nsACString& aFamily, const gfxFontStyle* aStyle) {
|
|
nsAutoCString key;
|
|
GenerateFontListKey(aFamily, key);
|
|
FontFamily family = FindFamily(key);
|
|
if (family.IsNull()) {
|
|
return nullptr;
|
|
}
|
|
if (family.mIsShared) {
|
|
auto face = family.mShared->FindFaceForStyle(SharedFontList(), *aStyle);
|
|
if (!face) {
|
|
return nullptr;
|
|
}
|
|
return GetOrCreateFontEntry(face, family.mShared);
|
|
}
|
|
return family.mUnshared->FindFontForStyle(*aStyle);
|
|
}
|
|
|
|
gfxFontEntry* gfxPlatformFontList::GetOrCreateFontEntry(
|
|
fontlist::Face* aFace, const fontlist::Family* aFamily) {
|
|
return mFontEntries.LookupForAdd(aFace).OrInsert(
|
|
[=]() { return CreateFontEntry(aFace, aFamily); });
|
|
}
|
|
|
|
void gfxPlatformFontList::AddOtherFamilyName(
|
|
gfxFontFamily* aFamilyEntry, const nsCString& aOtherFamilyName) {
|
|
nsAutoCString key;
|
|
GenerateFontListKey(aOtherFamilyName, key);
|
|
|
|
if (!mOtherFamilyNames.GetWeak(key)) {
|
|
mOtherFamilyNames.Put(key, RefPtr{aFamilyEntry});
|
|
LOG_FONTLIST(
|
|
("(fontlist-otherfamily) canonical family: %s, "
|
|
"other family: %s\n",
|
|
aFamilyEntry->Name().get(), aOtherFamilyName.get()));
|
|
if (mBadUnderlineFamilyNames.ContainsSorted(key)) {
|
|
aFamilyEntry->SetBadUnderlineFamily();
|
|
}
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::AddFullname(gfxFontEntry* aFontEntry,
|
|
const nsCString& aFullname) {
|
|
if (!mExtraNames->mFullnames.GetWeak(aFullname)) {
|
|
mExtraNames->mFullnames.Put(aFullname, RefPtr{aFontEntry});
|
|
LOG_FONTLIST(("(fontlist-fullname) name: %s, fullname: %s\n",
|
|
aFontEntry->Name().get(), aFullname.get()));
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::AddPostscriptName(gfxFontEntry* aFontEntry,
|
|
const nsCString& aPostscriptName) {
|
|
if (!mExtraNames->mPostscriptNames.GetWeak(aPostscriptName)) {
|
|
mExtraNames->mPostscriptNames.Put(aPostscriptName, RefPtr{aFontEntry});
|
|
LOG_FONTLIST(("(fontlist-postscript) name: %s, psname: %s\n",
|
|
aFontEntry->Name().get(), aPostscriptName.get()));
|
|
}
|
|
}
|
|
|
|
bool gfxPlatformFontList::GetStandardFamilyName(const nsCString& aFontName,
|
|
nsACString& aFamilyName) {
|
|
FontFamily family = FindFamily(aFontName);
|
|
if (family.IsNull()) {
|
|
return false;
|
|
}
|
|
if (family.mIsShared) {
|
|
aFamilyName = family.mShared->DisplayName().AsString(SharedFontList());
|
|
return true;
|
|
}
|
|
family.mUnshared->LocalizedName(aFamilyName);
|
|
return true;
|
|
}
|
|
|
|
FamilyAndGeneric gfxPlatformFontList::GetDefaultFontFamily(
|
|
const nsACString& aLangGroup, const nsACString& aGenericFamily) {
|
|
if (NS_WARN_IF(aLangGroup.IsEmpty()) ||
|
|
NS_WARN_IF(aGenericFamily.IsEmpty())) {
|
|
return FamilyAndGeneric();
|
|
}
|
|
|
|
AutoTArray<nsCString, 4> names;
|
|
gfxFontUtils::AppendPrefsFontList(
|
|
NameListPref(aGenericFamily, aLangGroup).get(), names);
|
|
|
|
for (const nsCString& name : names) {
|
|
FontFamily family = FindFamily(name);
|
|
if (!family.IsNull()) {
|
|
return FamilyAndGeneric(family);
|
|
}
|
|
}
|
|
|
|
return FamilyAndGeneric();
|
|
}
|
|
|
|
ShmemCharMapHashEntry::ShmemCharMapHashEntry(const gfxSparseBitSet* aCharMap)
|
|
: mList(gfxPlatformFontList::PlatformFontList()->SharedFontList()),
|
|
mCharMap(),
|
|
mHash(aCharMap->GetChecksum()) {
|
|
size_t len = SharedBitSet::RequiredSize(*aCharMap);
|
|
mCharMap = mList->Alloc(len);
|
|
SharedBitSet::Create(mCharMap.ToPtr(mList), len, *aCharMap);
|
|
}
|
|
|
|
fontlist::Pointer gfxPlatformFontList::GetShmemCharMap(
|
|
const gfxSparseBitSet* aCmap) {
|
|
auto* entry = mShmemCharMaps.GetEntry(aCmap);
|
|
if (!entry) {
|
|
entry = mShmemCharMaps.PutEntry(aCmap);
|
|
}
|
|
return entry->GetCharMap();
|
|
}
|
|
|
|
gfxCharacterMap* gfxPlatformFontList::FindCharMap(gfxCharacterMap* aCmap) {
|
|
aCmap->CalcHash();
|
|
gfxCharacterMap* cmap = AddCmap(aCmap);
|
|
cmap->mShared = true;
|
|
return cmap;
|
|
}
|
|
|
|
// add a cmap to the shared cmap set
|
|
gfxCharacterMap* gfxPlatformFontList::AddCmap(const gfxCharacterMap* aCharMap) {
|
|
CharMapHashKey* found =
|
|
mSharedCmaps.PutEntry(const_cast<gfxCharacterMap*>(aCharMap));
|
|
return found->GetKey();
|
|
}
|
|
|
|
// remove the cmap from the shared cmap set
|
|
void gfxPlatformFontList::RemoveCmap(const gfxCharacterMap* aCharMap) {
|
|
// skip lookups during teardown
|
|
if (mSharedCmaps.Count() == 0) {
|
|
return;
|
|
}
|
|
|
|
// cmap needs to match the entry *and* be the same ptr before removing
|
|
CharMapHashKey* found =
|
|
mSharedCmaps.GetEntry(const_cast<gfxCharacterMap*>(aCharMap));
|
|
if (found && found->GetKey() == aCharMap) {
|
|
mSharedCmaps.RemoveEntry(found);
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::ResolveGenericFontNames(
|
|
StyleGenericFontFamily aGenericType, eFontPrefLang aPrefLang,
|
|
PrefFontList* aGenericFamilies) {
|
|
const char* langGroupStr = GetPrefLangName(aPrefLang);
|
|
const char* generic = GetGenericName(aGenericType);
|
|
|
|
if (!generic) {
|
|
return;
|
|
}
|
|
|
|
AutoTArray<nsCString, 4> genericFamilies;
|
|
|
|
// load family for "font.name.generic.lang"
|
|
gfxFontUtils::AppendPrefsFontList(NamePref(generic, langGroupStr).get(),
|
|
genericFamilies);
|
|
|
|
// load fonts for "font.name-list.generic.lang"
|
|
gfxFontUtils::AppendPrefsFontList(NameListPref(generic, langGroupStr).get(),
|
|
genericFamilies);
|
|
|
|
nsAtom* langGroup = GetLangGroupForPrefLang(aPrefLang);
|
|
NS_ASSERTION(langGroup, "null lang group for pref lang");
|
|
|
|
GetFontFamiliesFromGenericFamilies(aGenericType, genericFamilies, langGroup,
|
|
aGenericFamilies);
|
|
|
|
#if 0 // dump out generic mappings
|
|
printf("%s ===> ", NamePref(generic, langGroupStr).get());
|
|
for (uint32_t k = 0; k < aGenericFamilies->Length(); k++) {
|
|
if (k > 0) printf(", ");
|
|
printf("%s", (*aGenericFamilies)[k].mIsShared
|
|
? (*aGenericFamilies)[k].mShared->DisplayName().AsString(SharedFontList()).get()
|
|
: (*aGenericFamilies)[k].mUnshared->Name().get());
|
|
}
|
|
printf("\n");
|
|
#endif
|
|
}
|
|
|
|
void gfxPlatformFontList::ResolveEmojiFontNames(
|
|
PrefFontList* aGenericFamilies) {
|
|
// emoji preference has no lang name
|
|
AutoTArray<nsCString, 4> genericFamilies;
|
|
|
|
nsAutoCString prefFontListName("font.name-list.emoji");
|
|
gfxFontUtils::AppendPrefsFontList(prefFontListName.get(), genericFamilies);
|
|
|
|
GetFontFamiliesFromGenericFamilies(StyleGenericFontFamily::MozEmoji,
|
|
genericFamilies, nullptr,
|
|
aGenericFamilies);
|
|
}
|
|
|
|
void gfxPlatformFontList::GetFontFamiliesFromGenericFamilies(
|
|
StyleGenericFontFamily aGenericType,
|
|
nsTArray<nsCString>& aGenericNameFamilies, nsAtom* aLangGroup,
|
|
PrefFontList* aGenericFamilies) {
|
|
// lookup and add platform fonts uniquely
|
|
for (const nsCString& genericFamily : aGenericNameFamilies) {
|
|
gfxFontStyle style;
|
|
style.language = aLangGroup;
|
|
style.systemFont = false;
|
|
AutoTArray<FamilyAndGeneric, 10> families;
|
|
FindAndAddFamilies(aGenericType, genericFamily, &families,
|
|
FindFamiliesFlags(0), &style);
|
|
for (const FamilyAndGeneric& f : families) {
|
|
if (!aGenericFamilies->Contains(f.mFamily)) {
|
|
aGenericFamilies->AppendElement(f.mFamily);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
gfxPlatformFontList::PrefFontList* gfxPlatformFontList::GetPrefFontsLangGroup(
|
|
StyleGenericFontFamily aGenericType, eFontPrefLang aPrefLang) {
|
|
if (aGenericType == StyleGenericFontFamily::MozEmoji) {
|
|
// Emoji font has no lang
|
|
PrefFontList* prefFonts = mEmojiPrefFont.get();
|
|
if (MOZ_UNLIKELY(!prefFonts)) {
|
|
prefFonts = new PrefFontList;
|
|
ResolveEmojiFontNames(prefFonts);
|
|
mEmojiPrefFont.reset(prefFonts);
|
|
}
|
|
return prefFonts;
|
|
}
|
|
|
|
auto index = static_cast<size_t>(aGenericType);
|
|
PrefFontList* prefFonts = mLangGroupPrefFonts[aPrefLang][index].get();
|
|
if (MOZ_UNLIKELY(!prefFonts)) {
|
|
prefFonts = new PrefFontList;
|
|
ResolveGenericFontNames(aGenericType, aPrefLang, prefFonts);
|
|
mLangGroupPrefFonts[aPrefLang][index].reset(prefFonts);
|
|
}
|
|
return prefFonts;
|
|
}
|
|
|
|
void gfxPlatformFontList::AddGenericFonts(
|
|
StyleGenericFontFamily aGenericType, nsAtom* aLanguage,
|
|
nsTArray<FamilyAndGeneric>& aFamilyList) {
|
|
// map lang ==> langGroup
|
|
nsAtom* langGroup = GetLangGroup(aLanguage);
|
|
|
|
// langGroup ==> prefLang
|
|
eFontPrefLang prefLang = GetFontPrefLangFor(langGroup);
|
|
|
|
// lookup pref fonts
|
|
PrefFontList* prefFonts = GetPrefFontsLangGroup(aGenericType, prefLang);
|
|
|
|
if (!prefFonts->IsEmpty()) {
|
|
aFamilyList.SetCapacity(aFamilyList.Length() + prefFonts->Length());
|
|
for (auto& f : *prefFonts) {
|
|
aFamilyList.AppendElement(FamilyAndGeneric(f, aGenericType));
|
|
}
|
|
}
|
|
}
|
|
|
|
static nsAtom* PrefLangToLangGroups(uint32_t aIndex) {
|
|
// static array here avoids static constructor
|
|
static nsAtom* gPrefLangToLangGroups[] = {
|
|
#define FONT_PREF_LANG(enum_id_, str_, atom_id_) nsGkAtoms::atom_id_
|
|
#include "gfxFontPrefLangList.h"
|
|
#undef FONT_PREF_LANG
|
|
};
|
|
|
|
return aIndex < ArrayLength(gPrefLangToLangGroups)
|
|
? gPrefLangToLangGroups[aIndex]
|
|
: nsGkAtoms::Unicode;
|
|
}
|
|
|
|
eFontPrefLang gfxPlatformFontList::GetFontPrefLangFor(const char* aLang) {
|
|
if (!aLang || !aLang[0]) {
|
|
return eFontPrefLang_Others;
|
|
}
|
|
for (uint32_t i = 0; i < ArrayLength(gPrefLangNames); ++i) {
|
|
if (!PL_strcasecmp(gPrefLangNames[i], aLang)) {
|
|
return eFontPrefLang(i);
|
|
}
|
|
}
|
|
return eFontPrefLang_Others;
|
|
}
|
|
|
|
eFontPrefLang gfxPlatformFontList::GetFontPrefLangFor(nsAtom* aLang) {
|
|
if (!aLang) return eFontPrefLang_Others;
|
|
nsAutoCString lang;
|
|
aLang->ToUTF8String(lang);
|
|
return GetFontPrefLangFor(lang.get());
|
|
}
|
|
|
|
nsAtom* gfxPlatformFontList::GetLangGroupForPrefLang(eFontPrefLang aLang) {
|
|
// the special CJK set pref lang should be resolved into separate
|
|
// calls to individual CJK pref langs before getting here
|
|
NS_ASSERTION(aLang != eFontPrefLang_CJKSet, "unresolved CJK set pref lang");
|
|
|
|
return PrefLangToLangGroups(uint32_t(aLang));
|
|
}
|
|
|
|
const char* gfxPlatformFontList::GetPrefLangName(eFontPrefLang aLang) {
|
|
if (uint32_t(aLang) < ArrayLength(gPrefLangNames)) {
|
|
return gPrefLangNames[uint32_t(aLang)];
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
eFontPrefLang gfxPlatformFontList::GetFontPrefLangFor(uint32_t aCh) {
|
|
switch (ublock_getCode(aCh)) {
|
|
case UBLOCK_BASIC_LATIN:
|
|
case UBLOCK_LATIN_1_SUPPLEMENT:
|
|
case UBLOCK_LATIN_EXTENDED_A:
|
|
case UBLOCK_LATIN_EXTENDED_B:
|
|
case UBLOCK_IPA_EXTENSIONS:
|
|
case UBLOCK_SPACING_MODIFIER_LETTERS:
|
|
case UBLOCK_LATIN_EXTENDED_ADDITIONAL:
|
|
case UBLOCK_LATIN_EXTENDED_C:
|
|
case UBLOCK_LATIN_EXTENDED_D:
|
|
case UBLOCK_LATIN_EXTENDED_E:
|
|
case UBLOCK_PHONETIC_EXTENSIONS:
|
|
return eFontPrefLang_Western;
|
|
case UBLOCK_GREEK:
|
|
case UBLOCK_GREEK_EXTENDED:
|
|
return eFontPrefLang_Greek;
|
|
case UBLOCK_CYRILLIC:
|
|
case UBLOCK_CYRILLIC_SUPPLEMENT:
|
|
case UBLOCK_CYRILLIC_EXTENDED_A:
|
|
case UBLOCK_CYRILLIC_EXTENDED_B:
|
|
case UBLOCK_CYRILLIC_EXTENDED_C:
|
|
return eFontPrefLang_Cyrillic;
|
|
case UBLOCK_ARMENIAN:
|
|
return eFontPrefLang_Armenian;
|
|
case UBLOCK_HEBREW:
|
|
return eFontPrefLang_Hebrew;
|
|
case UBLOCK_ARABIC:
|
|
case UBLOCK_ARABIC_PRESENTATION_FORMS_A:
|
|
case UBLOCK_ARABIC_PRESENTATION_FORMS_B:
|
|
case UBLOCK_ARABIC_SUPPLEMENT:
|
|
case UBLOCK_ARABIC_EXTENDED_A:
|
|
case UBLOCK_ARABIC_MATHEMATICAL_ALPHABETIC_SYMBOLS:
|
|
return eFontPrefLang_Arabic;
|
|
case UBLOCK_DEVANAGARI:
|
|
case UBLOCK_DEVANAGARI_EXTENDED:
|
|
return eFontPrefLang_Devanagari;
|
|
case UBLOCK_BENGALI:
|
|
return eFontPrefLang_Bengali;
|
|
case UBLOCK_GURMUKHI:
|
|
return eFontPrefLang_Gurmukhi;
|
|
case UBLOCK_GUJARATI:
|
|
return eFontPrefLang_Gujarati;
|
|
case UBLOCK_ORIYA:
|
|
return eFontPrefLang_Oriya;
|
|
case UBLOCK_TAMIL:
|
|
return eFontPrefLang_Tamil;
|
|
case UBLOCK_TELUGU:
|
|
return eFontPrefLang_Telugu;
|
|
case UBLOCK_KANNADA:
|
|
return eFontPrefLang_Kannada;
|
|
case UBLOCK_MALAYALAM:
|
|
return eFontPrefLang_Malayalam;
|
|
case UBLOCK_SINHALA:
|
|
case UBLOCK_SINHALA_ARCHAIC_NUMBERS:
|
|
return eFontPrefLang_Sinhala;
|
|
case UBLOCK_THAI:
|
|
return eFontPrefLang_Thai;
|
|
case UBLOCK_TIBETAN:
|
|
return eFontPrefLang_Tibetan;
|
|
case UBLOCK_GEORGIAN:
|
|
case UBLOCK_GEORGIAN_SUPPLEMENT:
|
|
case UBLOCK_GEORGIAN_EXTENDED:
|
|
return eFontPrefLang_Georgian;
|
|
case UBLOCK_HANGUL_JAMO:
|
|
case UBLOCK_HANGUL_COMPATIBILITY_JAMO:
|
|
case UBLOCK_HANGUL_SYLLABLES:
|
|
case UBLOCK_HANGUL_JAMO_EXTENDED_A:
|
|
case UBLOCK_HANGUL_JAMO_EXTENDED_B:
|
|
return eFontPrefLang_Korean;
|
|
case UBLOCK_ETHIOPIC:
|
|
case UBLOCK_ETHIOPIC_EXTENDED:
|
|
case UBLOCK_ETHIOPIC_SUPPLEMENT:
|
|
case UBLOCK_ETHIOPIC_EXTENDED_A:
|
|
return eFontPrefLang_Ethiopic;
|
|
case UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS:
|
|
case UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS_EXTENDED:
|
|
return eFontPrefLang_Canadian;
|
|
case UBLOCK_KHMER:
|
|
case UBLOCK_KHMER_SYMBOLS:
|
|
return eFontPrefLang_Khmer;
|
|
case UBLOCK_CJK_RADICALS_SUPPLEMENT:
|
|
case UBLOCK_KANGXI_RADICALS:
|
|
case UBLOCK_IDEOGRAPHIC_DESCRIPTION_CHARACTERS:
|
|
case UBLOCK_CJK_SYMBOLS_AND_PUNCTUATION:
|
|
case UBLOCK_HIRAGANA:
|
|
case UBLOCK_KATAKANA:
|
|
case UBLOCK_BOPOMOFO:
|
|
case UBLOCK_KANBUN:
|
|
case UBLOCK_BOPOMOFO_EXTENDED:
|
|
case UBLOCK_ENCLOSED_CJK_LETTERS_AND_MONTHS:
|
|
case UBLOCK_CJK_COMPATIBILITY:
|
|
case UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A:
|
|
case UBLOCK_CJK_UNIFIED_IDEOGRAPHS:
|
|
case UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS:
|
|
case UBLOCK_CJK_COMPATIBILITY_FORMS:
|
|
case UBLOCK_SMALL_FORM_VARIANTS:
|
|
case UBLOCK_HALFWIDTH_AND_FULLWIDTH_FORMS:
|
|
case UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B:
|
|
case UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS_SUPPLEMENT:
|
|
case UBLOCK_KATAKANA_PHONETIC_EXTENSIONS:
|
|
case UBLOCK_CJK_STROKES:
|
|
case UBLOCK_VERTICAL_FORMS:
|
|
case UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_C:
|
|
case UBLOCK_KANA_SUPPLEMENT:
|
|
case UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_D:
|
|
case UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_E:
|
|
case UBLOCK_IDEOGRAPHIC_SYMBOLS_AND_PUNCTUATION:
|
|
case UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_F:
|
|
case UBLOCK_KANA_EXTENDED_A:
|
|
return eFontPrefLang_CJKSet;
|
|
default:
|
|
return eFontPrefLang_Others;
|
|
}
|
|
}
|
|
|
|
bool gfxPlatformFontList::IsLangCJK(eFontPrefLang aLang) {
|
|
switch (aLang) {
|
|
case eFontPrefLang_Japanese:
|
|
case eFontPrefLang_ChineseTW:
|
|
case eFontPrefLang_ChineseCN:
|
|
case eFontPrefLang_ChineseHK:
|
|
case eFontPrefLang_Korean:
|
|
case eFontPrefLang_CJKSet:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::GetLangPrefs(eFontPrefLang aPrefLangs[],
|
|
uint32_t& aLen, eFontPrefLang aCharLang,
|
|
eFontPrefLang aPageLang) {
|
|
if (IsLangCJK(aCharLang)) {
|
|
AppendCJKPrefLangs(aPrefLangs, aLen, aCharLang, aPageLang);
|
|
} else {
|
|
AppendPrefLang(aPrefLangs, aLen, aCharLang);
|
|
}
|
|
|
|
AppendPrefLang(aPrefLangs, aLen, eFontPrefLang_Others);
|
|
}
|
|
|
|
void gfxPlatformFontList::AppendCJKPrefLangs(eFontPrefLang aPrefLangs[],
|
|
uint32_t& aLen,
|
|
eFontPrefLang aCharLang,
|
|
eFontPrefLang aPageLang) {
|
|
// prefer the lang specified by the page *if* CJK
|
|
if (IsLangCJK(aPageLang)) {
|
|
AppendPrefLang(aPrefLangs, aLen, aPageLang);
|
|
}
|
|
|
|
// if not set up, set up the default CJK order, based on accept lang
|
|
// settings and locale
|
|
if (mCJKPrefLangs.Length() == 0) {
|
|
// temp array
|
|
eFontPrefLang tempPrefLangs[kMaxLenPrefLangList];
|
|
uint32_t tempLen = 0;
|
|
|
|
// Add the CJK pref fonts from accept languages, the order should be same
|
|
// order. We use gfxFontUtils::GetPrefsFontList to read the list even
|
|
// though it's not actually a list of fonts but of lang codes; the format
|
|
// is the same.
|
|
AutoTArray<nsCString, 5> list;
|
|
gfxFontUtils::GetPrefsFontList("intl.accept_languages", list, true);
|
|
for (const auto& lang : list) {
|
|
eFontPrefLang fpl = GetFontPrefLangFor(lang.get());
|
|
switch (fpl) {
|
|
case eFontPrefLang_Japanese:
|
|
case eFontPrefLang_Korean:
|
|
case eFontPrefLang_ChineseCN:
|
|
case eFontPrefLang_ChineseHK:
|
|
case eFontPrefLang_ChineseTW:
|
|
AppendPrefLang(tempPrefLangs, tempLen, fpl);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Try using app's locale
|
|
nsAutoCString localeStr;
|
|
LocaleService::GetInstance()->GetAppLocaleAsBCP47(localeStr);
|
|
|
|
{
|
|
Locale locale(localeStr);
|
|
if (locale.GetLanguage().Equals("ja")) {
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Japanese);
|
|
} else if (locale.GetLanguage().Equals("zh")) {
|
|
if (locale.GetRegion().Equals("CN")) {
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseCN);
|
|
} else if (locale.GetRegion().Equals("TW")) {
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseTW);
|
|
} else if (locale.GetRegion().Equals("HK")) {
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseHK);
|
|
}
|
|
} else if (locale.GetLanguage().Equals("ko")) {
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Korean);
|
|
}
|
|
}
|
|
|
|
// Then add the known CJK prefs in order of system preferred locales
|
|
AutoTArray<nsCString, 5> prefLocales;
|
|
prefLocales.AppendElement("ja"_ns);
|
|
prefLocales.AppendElement("zh-CN"_ns);
|
|
prefLocales.AppendElement("zh-TW"_ns);
|
|
prefLocales.AppendElement("zh-HK"_ns);
|
|
prefLocales.AppendElement("ko"_ns);
|
|
|
|
AutoTArray<nsCString, 16> sysLocales;
|
|
AutoTArray<nsCString, 16> negLocales;
|
|
if (NS_SUCCEEDED(
|
|
OSPreferences::GetInstance()->GetSystemLocales(sysLocales))) {
|
|
LocaleService::GetInstance()->NegotiateLanguages(
|
|
sysLocales, prefLocales, ""_ns,
|
|
LocaleService::kLangNegStrategyFiltering, negLocales);
|
|
for (const auto& localeStr : negLocales) {
|
|
Locale locale(localeStr);
|
|
|
|
if (locale.GetLanguage().Equals("ja")) {
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Japanese);
|
|
} else if (locale.GetLanguage().Equals("zh")) {
|
|
if (locale.GetRegion().Equals("CN")) {
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseCN);
|
|
} else if (locale.GetRegion().Equals("TW")) {
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseTW);
|
|
} else if (locale.GetRegion().Equals("HK")) {
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseHK);
|
|
}
|
|
} else if (locale.GetLanguage().Equals("ko")) {
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Korean);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Last resort... set up CJK font prefs in the order listed by the user-
|
|
// configurable ordering pref.
|
|
gfxFontUtils::GetPrefsFontList(kCJKFallbackOrderPref, list);
|
|
for (const auto& item : list) {
|
|
eFontPrefLang fpl = GetFontPrefLangFor(item.get());
|
|
switch (fpl) {
|
|
case eFontPrefLang_Japanese:
|
|
case eFontPrefLang_Korean:
|
|
case eFontPrefLang_ChineseCN:
|
|
case eFontPrefLang_ChineseHK:
|
|
case eFontPrefLang_ChineseTW:
|
|
AppendPrefLang(tempPrefLangs, tempLen, fpl);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Truly-last resort... try Chinese font prefs before Japanese because
|
|
// they tend to have more complete character coverage, and therefore less
|
|
// risk of "ransom-note" effects.
|
|
// (If the kCJKFallbackOrderPref was fully populated, as it is by default,
|
|
// this will do nothing as all these values are already present.)
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseCN);
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseHK);
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseTW);
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Japanese);
|
|
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Korean);
|
|
|
|
// copy into the cached array
|
|
for (const auto lang : Span<eFontPrefLang>(tempPrefLangs, tempLen)) {
|
|
mCJKPrefLangs.AppendElement(lang);
|
|
}
|
|
}
|
|
|
|
// append in cached CJK langs
|
|
for (const auto lang : mCJKPrefLangs) {
|
|
AppendPrefLang(aPrefLangs, aLen, eFontPrefLang(lang));
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::AppendPrefLang(eFontPrefLang aPrefLangs[],
|
|
uint32_t& aLen,
|
|
eFontPrefLang aAddLang) {
|
|
if (aLen >= kMaxLenPrefLangList) {
|
|
return;
|
|
}
|
|
|
|
// If the lang is already present, just ignore the addition.
|
|
for (const auto lang : Span<eFontPrefLang>(aPrefLangs, aLen)) {
|
|
if (lang == aAddLang) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
aPrefLangs[aLen++] = aAddLang;
|
|
}
|
|
|
|
StyleGenericFontFamily gfxPlatformFontList::GetDefaultGeneric(
|
|
eFontPrefLang aLang) {
|
|
if (aLang == eFontPrefLang_Emoji) {
|
|
return StyleGenericFontFamily::MozEmoji;
|
|
}
|
|
|
|
// initialize lang group pref font defaults (i.e. serif/sans-serif)
|
|
if (MOZ_UNLIKELY(mDefaultGenericsLangGroup.IsEmpty())) {
|
|
mDefaultGenericsLangGroup.AppendElements(ArrayLength(gPrefLangNames));
|
|
for (uint32_t i = 0; i < ArrayLength(gPrefLangNames); i++) {
|
|
nsAutoCString prefDefaultFontType("font.default.");
|
|
prefDefaultFontType.Append(GetPrefLangName(eFontPrefLang(i)));
|
|
nsAutoCString serifOrSans;
|
|
Preferences::GetCString(prefDefaultFontType.get(), serifOrSans);
|
|
if (serifOrSans.EqualsLiteral("sans-serif")) {
|
|
mDefaultGenericsLangGroup[i] = StyleGenericFontFamily::SansSerif;
|
|
} else {
|
|
mDefaultGenericsLangGroup[i] = StyleGenericFontFamily::Serif;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (uint32_t(aLang) < ArrayLength(gPrefLangNames)) {
|
|
return mDefaultGenericsLangGroup[uint32_t(aLang)];
|
|
}
|
|
return StyleGenericFontFamily::Serif;
|
|
}
|
|
|
|
FontFamily gfxPlatformFontList::GetDefaultFont(const gfxFontStyle* aStyle) {
|
|
FontFamily family = GetDefaultFontForPlatform(aStyle);
|
|
if (!family.IsNull()) {
|
|
return family;
|
|
}
|
|
// Something has gone wrong and we were unable to retrieve a default font
|
|
// from the platform. (Likely the whitelist has blocked all potential
|
|
// default fonts.) As a last resort, we return the first font in our list.
|
|
if (SharedFontList()) {
|
|
MOZ_RELEASE_ASSERT(SharedFontList()->NumFamilies() > 0);
|
|
return FontFamily(SharedFontList()->Families());
|
|
}
|
|
MOZ_RELEASE_ASSERT(mFontFamilies.Count() > 0);
|
|
return FontFamily(mFontFamilies.Iter().Data());
|
|
}
|
|
|
|
void gfxPlatformFontList::GetFontFamilyNames(
|
|
nsTArray<nsCString>& aFontFamilyNames) {
|
|
if (SharedFontList()) {
|
|
fontlist::FontList* list = SharedFontList();
|
|
const fontlist::Family* families = list->Families();
|
|
if (families) {
|
|
for (uint32_t i = 0, n = list->NumFamilies(); i < n; i++) {
|
|
const fontlist::Family& family = families[i];
|
|
if (!family.IsHidden()) {
|
|
aFontFamilyNames.AppendElement(family.DisplayName().AsString(list));
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
for (auto iter = mFontFamilies.Iter(); !iter.Done(); iter.Next()) {
|
|
RefPtr<gfxFontFamily>& family = iter.Data();
|
|
if (!family->IsHidden()) {
|
|
aFontFamilyNames.AppendElement(family->Name());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
nsAtom* gfxPlatformFontList::GetLangGroup(nsAtom* aLanguage) {
|
|
// map lang ==> langGroup
|
|
nsAtom* langGroup = nullptr;
|
|
if (aLanguage) {
|
|
langGroup = mLangService->GetLanguageGroup(aLanguage);
|
|
}
|
|
if (!langGroup) {
|
|
langGroup = nsGkAtoms::Unicode;
|
|
}
|
|
return langGroup;
|
|
}
|
|
|
|
/* static */ const char* gfxPlatformFontList::GetGenericName(
|
|
StyleGenericFontFamily aGenericType) {
|
|
static const char kGeneric_serif[] = "serif";
|
|
static const char kGeneric_sans_serif[] = "sans-serif";
|
|
static const char kGeneric_monospace[] = "monospace";
|
|
static const char kGeneric_cursive[] = "cursive";
|
|
static const char kGeneric_fantasy[] = "fantasy";
|
|
|
|
// type should be standard generic type at this point
|
|
// map generic type to string
|
|
switch (aGenericType) {
|
|
case StyleGenericFontFamily::Serif:
|
|
return kGeneric_serif;
|
|
case StyleGenericFontFamily::SansSerif:
|
|
return kGeneric_sans_serif;
|
|
case StyleGenericFontFamily::Monospace:
|
|
return kGeneric_monospace;
|
|
case StyleGenericFontFamily::Cursive:
|
|
return kGeneric_cursive;
|
|
case StyleGenericFontFamily::Fantasy:
|
|
return kGeneric_fantasy;
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unknown generic");
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::InitLoader() {
|
|
GetFontFamilyNames(mFontInfo->mFontFamiliesToLoad);
|
|
mStartIndex = 0;
|
|
mNumFamilies = mFontInfo->mFontFamiliesToLoad.Length();
|
|
memset(&(mFontInfo->mLoadStats), 0, sizeof(mFontInfo->mLoadStats));
|
|
}
|
|
|
|
#define FONT_LOADER_MAX_TIMESLICE \
|
|
100 // max time for one pass through RunLoader = 100ms
|
|
|
|
bool gfxPlatformFontList::LoadFontInfo() {
|
|
TimeStamp start = TimeStamp::Now();
|
|
uint32_t i, endIndex = mNumFamilies;
|
|
fontlist::FontList* list = SharedFontList();
|
|
bool loadCmaps =
|
|
!list && (!UsesSystemFallback() ||
|
|
gfxPlatform::GetPlatform()->UseCmapsDuringSystemFallback());
|
|
|
|
// for each font family, load in various font info
|
|
for (i = mStartIndex; i < endIndex; i++) {
|
|
nsAutoCString key;
|
|
GenerateFontListKey(mFontInfo->mFontFamiliesToLoad[i], key);
|
|
|
|
if (list) {
|
|
fontlist::Family* family = list->FindFamily(key);
|
|
if (!family) {
|
|
continue;
|
|
}
|
|
ReadFaceNamesForFamily(family, NeedFullnamePostscriptNames());
|
|
} else {
|
|
// lookup in canonical (i.e. English) family name list
|
|
gfxFontFamily* familyEntry = mFontFamilies.GetWeak(key);
|
|
if (!familyEntry) {
|
|
continue;
|
|
}
|
|
|
|
// read in face names
|
|
familyEntry->ReadFaceNames(this, NeedFullnamePostscriptNames(),
|
|
mFontInfo);
|
|
|
|
// load the cmaps if needed
|
|
if (loadCmaps) {
|
|
familyEntry->ReadAllCMAPs(mFontInfo);
|
|
}
|
|
}
|
|
|
|
// limit the time spent reading fonts in one pass
|
|
TimeDuration elapsed = TimeStamp::Now() - start;
|
|
if (elapsed.ToMilliseconds() > FONT_LOADER_MAX_TIMESLICE &&
|
|
i + 1 != endIndex) {
|
|
endIndex = i + 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
mStartIndex = endIndex;
|
|
bool done = mStartIndex >= mNumFamilies;
|
|
|
|
if (LOG_FONTINIT_ENABLED()) {
|
|
TimeDuration elapsed = TimeStamp::Now() - start;
|
|
LOG_FONTINIT(("(fontinit) fontloader load pass %8.2f ms done %s\n",
|
|
elapsed.ToMilliseconds(), (done ? "true" : "false")));
|
|
}
|
|
|
|
if (done) {
|
|
mOtherFamilyNamesInitialized = true;
|
|
CancelInitOtherFamilyNamesTask();
|
|
mFaceNameListsInitialized = true;
|
|
}
|
|
|
|
return done;
|
|
}
|
|
|
|
void gfxPlatformFontList::CleanupLoader() {
|
|
mFontFamiliesToLoad.Clear();
|
|
mNumFamilies = 0;
|
|
bool rebuilt = false, forceReflow = false;
|
|
|
|
// if had missed face names that are now available, force reflow all
|
|
if (mFaceNamesMissed) {
|
|
for (auto it = mFaceNamesMissed->Iter(); !it.Done(); it.Next()) {
|
|
if (FindFaceName(it.Get()->GetKey())) {
|
|
rebuilt = true;
|
|
RebuildLocalFonts();
|
|
break;
|
|
}
|
|
}
|
|
mFaceNamesMissed = nullptr;
|
|
}
|
|
|
|
if (mOtherNamesMissed) {
|
|
for (auto it = mOtherNamesMissed->Iter(); !it.Done(); it.Next()) {
|
|
if (FindUnsharedFamily(
|
|
it.Get()->GetKey(),
|
|
(FindFamiliesFlags::eForceOtherFamilyNamesLoading |
|
|
FindFamiliesFlags::eNoAddToNamesMissedWhenSearching))) {
|
|
forceReflow = true;
|
|
ForceGlobalReflow();
|
|
break;
|
|
}
|
|
}
|
|
mOtherNamesMissed = nullptr;
|
|
}
|
|
|
|
if (LOG_FONTINIT_ENABLED() && mFontInfo) {
|
|
LOG_FONTINIT(
|
|
("(fontinit) fontloader load thread took %8.2f ms "
|
|
"%d families %d fonts %d cmaps "
|
|
"%d facenames %d othernames %s %s",
|
|
mLoadTime.ToMilliseconds(), mFontInfo->mLoadStats.families,
|
|
mFontInfo->mLoadStats.fonts, mFontInfo->mLoadStats.cmaps,
|
|
mFontInfo->mLoadStats.facenames, mFontInfo->mLoadStats.othernames,
|
|
(rebuilt ? "(userfont sets rebuilt)" : ""),
|
|
(forceReflow ? "(global reflow)" : "")));
|
|
}
|
|
|
|
gfxFontInfoLoader::CleanupLoader();
|
|
}
|
|
|
|
void gfxPlatformFontList::GetPrefsAndStartLoader() {
|
|
uint32_t delay = std::max(1u, Preferences::GetUint(FONT_LOADER_DELAY_PREF));
|
|
uint32_t interval =
|
|
std::max(1u, Preferences::GetUint(FONT_LOADER_INTERVAL_PREF));
|
|
|
|
StartLoader(delay, interval);
|
|
}
|
|
|
|
void gfxPlatformFontList::ForceGlobalReflow() {
|
|
gfxPlatform::ForceGlobalReflow();
|
|
}
|
|
|
|
void gfxPlatformFontList::RebuildLocalFonts(bool aForgetLocalFaces) {
|
|
for (auto it = mUserFontSetList.Iter(); !it.Done(); it.Next()) {
|
|
auto* fontset = it.Get()->GetKey();
|
|
if (aForgetLocalFaces) {
|
|
fontset->ForgetLocalFaces();
|
|
}
|
|
fontset->RebuildLocalRules();
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::ClearLangGroupPrefFonts() {
|
|
for (uint32_t i = eFontPrefLang_First;
|
|
i < eFontPrefLang_First + eFontPrefLang_Count; i++) {
|
|
auto& prefFontsLangGroup = mLangGroupPrefFonts[i];
|
|
for (auto& pref : prefFontsLangGroup) {
|
|
pref = nullptr;
|
|
}
|
|
}
|
|
mCJKPrefLangs.Clear();
|
|
mEmojiPrefFont = nullptr;
|
|
}
|
|
|
|
// Support for memory reporting
|
|
|
|
// this is also used by subclasses that hold additional font tables
|
|
/*static*/
|
|
size_t gfxPlatformFontList::SizeOfFontFamilyTableExcludingThis(
|
|
const FontFamilyTable& aTable, MallocSizeOf aMallocSizeOf) {
|
|
size_t n = aTable.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
for (auto iter = aTable.ConstIter(); !iter.Done(); iter.Next()) {
|
|
// We don't count the size of the family here, because this is an
|
|
// *extra* reference to a family that will have already been counted in
|
|
// the main list.
|
|
n += iter.Key().SizeOfExcludingThisIfUnshared(aMallocSizeOf);
|
|
}
|
|
return n;
|
|
}
|
|
|
|
/*static*/
|
|
size_t gfxPlatformFontList::SizeOfFontEntryTableExcludingThis(
|
|
const FontEntryTable& aTable, MallocSizeOf aMallocSizeOf) {
|
|
size_t n = aTable.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
for (auto iter = aTable.ConstIter(); !iter.Done(); iter.Next()) {
|
|
// The font itself is counted by its owning family; here we only care
|
|
// about the names stored in the hashtable keys.
|
|
n += iter.Key().SizeOfExcludingThisIfUnshared(aMallocSizeOf);
|
|
}
|
|
return n;
|
|
}
|
|
|
|
void gfxPlatformFontList::AddSizeOfExcludingThis(MallocSizeOf aMallocSizeOf,
|
|
FontListSizes* aSizes) const {
|
|
aSizes->mFontListSize +=
|
|
mFontFamilies.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
for (auto iter = mFontFamilies.ConstIter(); !iter.Done(); iter.Next()) {
|
|
aSizes->mFontListSize +=
|
|
iter.Key().SizeOfExcludingThisIfUnshared(aMallocSizeOf);
|
|
iter.Data()->AddSizeOfIncludingThis(aMallocSizeOf, aSizes);
|
|
}
|
|
|
|
aSizes->mFontListSize +=
|
|
SizeOfFontFamilyTableExcludingThis(mOtherFamilyNames, aMallocSizeOf);
|
|
|
|
if (mExtraNames) {
|
|
aSizes->mFontListSize += SizeOfFontEntryTableExcludingThis(
|
|
mExtraNames->mFullnames, aMallocSizeOf);
|
|
aSizes->mFontListSize += SizeOfFontEntryTableExcludingThis(
|
|
mExtraNames->mPostscriptNames, aMallocSizeOf);
|
|
}
|
|
|
|
for (uint32_t i = eFontPrefLang_First;
|
|
i < eFontPrefLang_First + eFontPrefLang_Count; i++) {
|
|
auto& prefFontsLangGroup = mLangGroupPrefFonts[i];
|
|
for (const UniquePtr<PrefFontList>& pf : prefFontsLangGroup) {
|
|
if (pf) {
|
|
aSizes->mFontListSize += pf->ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
}
|
|
}
|
|
}
|
|
|
|
aSizes->mFontListSize +=
|
|
mCodepointsWithNoFonts.SizeOfExcludingThis(aMallocSizeOf);
|
|
aSizes->mFontListSize +=
|
|
mFontFamiliesToLoad.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
|
|
aSizes->mFontListSize +=
|
|
mBadUnderlineFamilyNames.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
for (const auto& i : mBadUnderlineFamilyNames) {
|
|
aSizes->mFontListSize += i.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
|
|
}
|
|
|
|
aSizes->mFontListSize +=
|
|
mSharedCmaps.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
for (auto iter = mSharedCmaps.ConstIter(); !iter.Done(); iter.Next()) {
|
|
aSizes->mCharMapsSize +=
|
|
iter.Get()->GetKey()->SizeOfIncludingThis(aMallocSizeOf);
|
|
}
|
|
|
|
aSizes->mFontListSize +=
|
|
mFontEntries.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
for (auto iter = mFontEntries.ConstIter(); !iter.Done(); iter.Next()) {
|
|
iter.Data()->AddSizeOfIncludingThis(aMallocSizeOf, aSizes);
|
|
}
|
|
|
|
if (SharedFontList()) {
|
|
aSizes->mFontListSize +=
|
|
SharedFontList()->SizeOfIncludingThis(aMallocSizeOf);
|
|
if (XRE_IsParentProcess()) {
|
|
aSizes->mSharedSize += SharedFontList()->AllocatedShmemSize();
|
|
}
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::AddSizeOfIncludingThis(MallocSizeOf aMallocSizeOf,
|
|
FontListSizes* aSizes) const {
|
|
aSizes->mFontListSize += aMallocSizeOf(this);
|
|
AddSizeOfExcludingThis(aMallocSizeOf, aSizes);
|
|
}
|
|
|
|
bool gfxPlatformFontList::IsFontFamilyWhitelistActive() {
|
|
return mFontFamilyWhitelistActive;
|
|
}
|
|
|
|
void gfxPlatformFontList::InitOtherFamilyNamesInternal(
|
|
bool aDeferOtherFamilyNamesLoading) {
|
|
if (mOtherFamilyNamesInitialized) {
|
|
return;
|
|
}
|
|
|
|
if (aDeferOtherFamilyNamesLoading) {
|
|
TimeStamp start = TimeStamp::Now();
|
|
bool timedOut = false;
|
|
|
|
auto list = SharedFontList();
|
|
if (list) {
|
|
for (auto& f : mozilla::Range<fontlist::Family>(list->Families(),
|
|
list->NumFamilies())) {
|
|
ReadFaceNamesForFamily(&f, false);
|
|
TimeDuration elapsed = TimeStamp::Now() - start;
|
|
if (elapsed.ToMilliseconds() > OTHERNAMES_TIMEOUT) {
|
|
timedOut = true;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
for (auto iter = mFontFamilies.Iter(); !iter.Done(); iter.Next()) {
|
|
RefPtr<gfxFontFamily>& family = iter.Data();
|
|
family->ReadOtherFamilyNames(this);
|
|
TimeDuration elapsed = TimeStamp::Now() - start;
|
|
if (elapsed.ToMilliseconds() > OTHERNAMES_TIMEOUT) {
|
|
timedOut = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!timedOut) {
|
|
mOtherFamilyNamesInitialized = true;
|
|
CancelInitOtherFamilyNamesTask();
|
|
}
|
|
TimeStamp end = TimeStamp::Now();
|
|
Telemetry::AccumulateTimeDelta(Telemetry::FONTLIST_INITOTHERFAMILYNAMES,
|
|
start, end);
|
|
|
|
if (LOG_FONTINIT_ENABLED()) {
|
|
TimeDuration elapsed = end - start;
|
|
LOG_FONTINIT(("(fontinit) InitOtherFamilyNames took %8.2f ms %s",
|
|
elapsed.ToMilliseconds(), (timedOut ? "timeout" : "")));
|
|
}
|
|
} else {
|
|
TimeStamp start = TimeStamp::Now();
|
|
|
|
auto list = SharedFontList();
|
|
if (list) {
|
|
for (auto& f : mozilla::Range<fontlist::Family>(list->Families(),
|
|
list->NumFamilies())) {
|
|
ReadFaceNamesForFamily(&f, false);
|
|
}
|
|
} else {
|
|
for (auto iter = mFontFamilies.Iter(); !iter.Done(); iter.Next()) {
|
|
RefPtr<gfxFontFamily>& family = iter.Data();
|
|
family->ReadOtherFamilyNames(this);
|
|
}
|
|
}
|
|
|
|
mOtherFamilyNamesInitialized = true;
|
|
CancelInitOtherFamilyNamesTask();
|
|
|
|
TimeStamp end = TimeStamp::Now();
|
|
Telemetry::AccumulateTimeDelta(
|
|
Telemetry::FONTLIST_INITOTHERFAMILYNAMES_NO_DEFERRING, start, end);
|
|
|
|
if (LOG_FONTINIT_ENABLED()) {
|
|
TimeDuration elapsed = end - start;
|
|
LOG_FONTINIT(
|
|
("(fontinit) InitOtherFamilyNames without deferring took %8.2f ms",
|
|
elapsed.ToMilliseconds()));
|
|
}
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::CancelInitOtherFamilyNamesTask() {
|
|
if (mPendingOtherFamilyNameTask) {
|
|
mPendingOtherFamilyNameTask->Cancel();
|
|
mPendingOtherFamilyNameTask = nullptr;
|
|
}
|
|
auto list = SharedFontList();
|
|
if (list && XRE_IsParentProcess()) {
|
|
bool forceReflow = false;
|
|
if (!mAliasTable.IsEmpty()) {
|
|
list->SetAliases(mAliasTable);
|
|
mAliasTable.Clear();
|
|
forceReflow = true;
|
|
}
|
|
if (mLocalNameTable.Count()) {
|
|
list->SetLocalNames(mLocalNameTable);
|
|
mLocalNameTable.Clear();
|
|
forceReflow = true;
|
|
}
|
|
if (forceReflow) {
|
|
dom::ContentParent::BroadcastFontListChanged();
|
|
}
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::ShareFontListShmBlockToProcess(
|
|
uint32_t aGeneration, uint32_t aIndex, base::ProcessId aPid,
|
|
base::SharedMemoryHandle* aOut) {
|
|
auto list = SharedFontList();
|
|
if (!list) {
|
|
return;
|
|
}
|
|
if (!aGeneration || list->GetGeneration() == aGeneration) {
|
|
list->ShareShmBlockToProcess(aIndex, aPid, aOut);
|
|
} else {
|
|
*aOut = base::SharedMemory::NULLHandle();
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::ShareFontListToProcess(
|
|
nsTArray<base::SharedMemoryHandle>* aBlocks, base::ProcessId aPid) {
|
|
auto list = SharedFontList();
|
|
if (list) {
|
|
list->ShareBlocksToProcess(aBlocks, aPid);
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::InitializeFamily(uint32_t aGeneration,
|
|
uint32_t aFamilyIndex) {
|
|
auto list = SharedFontList();
|
|
MOZ_ASSERT(list);
|
|
if (!list) {
|
|
return;
|
|
}
|
|
if (list->GetGeneration() != aGeneration) {
|
|
return;
|
|
}
|
|
if (aFamilyIndex >= list->NumFamilies()) {
|
|
return;
|
|
}
|
|
fontlist::Family* family = list->Families() + aFamilyIndex;
|
|
if (!family->IsInitialized()) {
|
|
Unused << InitializeFamily(family);
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::SetCharacterMap(uint32_t aGeneration,
|
|
const fontlist::Pointer& aFacePtr,
|
|
const gfxSparseBitSet& aMap) {
|
|
MOZ_ASSERT(XRE_IsParentProcess());
|
|
auto list = SharedFontList();
|
|
MOZ_ASSERT(list);
|
|
if (!list) {
|
|
return;
|
|
}
|
|
if (list->GetGeneration() != aGeneration) {
|
|
return;
|
|
}
|
|
fontlist::Face* face = static_cast<fontlist::Face*>(aFacePtr.ToPtr(list));
|
|
if (face) {
|
|
face->mCharacterMap = GetShmemCharMap(&aMap);
|
|
}
|
|
}
|
|
|
|
void gfxPlatformFontList::SetupFamilyCharMap(
|
|
uint32_t aGeneration, const fontlist::Pointer& aFamilyPtr) {
|
|
MOZ_ASSERT(XRE_IsParentProcess());
|
|
auto list = SharedFontList();
|
|
MOZ_ASSERT(list);
|
|
if (!list) {
|
|
return;
|
|
}
|
|
if (list->GetGeneration() != aGeneration) {
|
|
return;
|
|
}
|
|
|
|
// aFamilyPtr was passed from a content process which may not be trusted,
|
|
// so we cannot assume it is valid or safe to use. If the Pointer value is
|
|
// bad, we must not crash or do anything bad, just bail out.
|
|
// (In general, if the child process was trying to use an invalid pointer it
|
|
// should have hit the MOZ_DIAGNOSTIC_ASSERT in FontList::ToSharedPointer
|
|
// rather than passing a null or bad pointer to the parent.)
|
|
|
|
auto* family = static_cast<fontlist::Family*>(aFamilyPtr.ToPtr(list));
|
|
if (!family) {
|
|
// Unable to resolve to a native pointer (or it was null).
|
|
NS_WARNING("unexpected null Family pointer");
|
|
return;
|
|
}
|
|
|
|
// Validate the pointer before trying to use it: check that it points to a
|
|
// correctly-aligned offset within the Families() or AliasFamilies() array.
|
|
// We just assert (in debug builds only) on failure, and return safely.
|
|
// A misaligned pointer here would indicate a buggy (or compromised) child
|
|
// process, but crashing the parent would be unnecessary and does not yield
|
|
// any useful insight.
|
|
if (family >= list->Families() &&
|
|
family < list->Families() + list->NumFamilies()) {
|
|
size_t offset = (char*)family - (char*)list->Families();
|
|
if (offset % sizeof(fontlist::Family) != 0) {
|
|
MOZ_ASSERT(false, "misaligned Family pointer");
|
|
return;
|
|
}
|
|
} else if (family >= list->AliasFamilies() &&
|
|
family < list->AliasFamilies() + list->NumAliases()) {
|
|
size_t offset = (char*)family - (char*)list->AliasFamilies();
|
|
if (offset % sizeof(fontlist::Family) != 0) {
|
|
MOZ_ASSERT(false, "misaligned Family pointer");
|
|
return;
|
|
}
|
|
} else {
|
|
MOZ_ASSERT(false, "not a valid Family or AliasFamily pointer");
|
|
return;
|
|
}
|
|
|
|
family->SetupFamilyCharMap(list);
|
|
}
|
|
|
|
void gfxPlatformFontList::InitOtherFamilyNames(uint32_t aGeneration,
|
|
bool aDefer) {
|
|
auto list = SharedFontList();
|
|
MOZ_ASSERT(list);
|
|
if (!list) {
|
|
return;
|
|
}
|
|
if (list->GetGeneration() != aGeneration) {
|
|
return;
|
|
}
|
|
InitOtherFamilyNames(aDefer);
|
|
}
|
|
|
|
uint32_t gfxPlatformFontList::GetGeneration() const {
|
|
return SharedFontList() ? SharedFontList()->GetGeneration() : 0;
|
|
}
|
|
|
|
#undef LOG
|
|
#undef LOG_ENABLED
|