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ab672d9f29
This cleans up and also allows us to keep the distinction between content: none and content: normal, which allows us to fix the computed style we return from getComputedStyle(). Do this last bit from the resolved value instead of StyleAdjuster, because otherwise we need to tweak every initial struct for ::before / ::after. Differential Revision: https://phabricator.services.mozilla.com/D58276 --HG-- extra : moz-landing-system : lando
1884 lines
62 KiB
C++
1884 lines
62 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "CounterStyleManager.h"
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#include "mozilla/ArenaObjectID.h"
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#include "mozilla/ArrayUtils.h"
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#include "mozilla/CheckedInt.h"
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#include "mozilla/MathAlgorithms.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/Types.h"
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#include "mozilla/WritingModes.h"
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#include "nsPresContext.h"
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#include "nsPresContextInlines.h"
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#include "nsString.h"
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#include "nsTArray.h"
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#include "nsTHashtable.h"
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#include "nsUnicodeProperties.h"
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#include "mozilla/ServoBindings.h"
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#include "mozilla/ServoStyleSet.h"
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namespace mozilla {
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using AdditiveSymbol = StyleAdditiveSymbol;
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struct NegativeType {
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nsString before, after;
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};
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struct PadType {
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int32_t width;
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nsString symbol;
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};
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// This limitation will be applied to some systems, and pad descriptor.
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// Any initial representation generated by symbolic or additive which is
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// longer than this limitation will be dropped. If any pad is longer
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// than this, the whole counter text will be dropped as well.
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// The spec requires user agents to support at least 60 Unicode code-
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// points for counter text. However, this constant only limits the
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// length in 16-bit units. So it has to be at least 120, since code-
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// points outside the BMP will need 2 16-bit units.
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#define LENGTH_LIMIT 150
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static bool GetCyclicCounterText(CounterValue aOrdinal, nsAString& aResult,
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Span<const nsString> aSymbols) {
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MOZ_ASSERT(aSymbols.Length() >= 1, "No symbol available for cyclic counter.");
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auto n = aSymbols.Length();
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CounterValue index = (aOrdinal - 1) % n;
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aResult = aSymbols[index >= 0 ? index : index + n];
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return true;
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}
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static bool GetFixedCounterText(CounterValue aOrdinal, nsAString& aResult,
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CounterValue aStart,
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Span<const nsString> aSymbols) {
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CounterValue index = aOrdinal - aStart;
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if (index >= 0 && index < CounterValue(aSymbols.Length())) {
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aResult = aSymbols[index];
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return true;
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} else {
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return false;
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}
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}
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static bool GetSymbolicCounterText(CounterValue aOrdinal, nsAString& aResult,
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Span<const nsString> aSymbols) {
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MOZ_ASSERT(aSymbols.Length() >= 1,
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"No symbol available for symbolic counter.");
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MOZ_ASSERT(aOrdinal >= 0, "Invalid ordinal.");
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if (aOrdinal == 0) {
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return false;
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}
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aResult.Truncate();
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auto n = aSymbols.Length();
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const nsString& symbol = aSymbols[(aOrdinal - 1) % n];
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size_t len = (aOrdinal + n - 1) / n;
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auto symbolLength = symbol.Length();
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if (symbolLength > 0) {
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if (len > LENGTH_LIMIT || symbolLength > LENGTH_LIMIT ||
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len * symbolLength > LENGTH_LIMIT) {
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return false;
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}
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for (size_t i = 0; i < len; ++i) {
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aResult.Append(symbol);
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}
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}
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return true;
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}
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static bool GetAlphabeticCounterText(CounterValue aOrdinal, nsAString& aResult,
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Span<const nsString> aSymbols) {
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MOZ_ASSERT(aSymbols.Length() >= 2, "Too few symbols for alphabetic counter.");
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MOZ_ASSERT(aOrdinal >= 0, "Invalid ordinal.");
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if (aOrdinal == 0) {
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return false;
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}
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auto n = aSymbols.Length();
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// The precise length of this array should be
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// ceil(log((double) aOrdinal / n * (n - 1) + 1) / log(n)).
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// The max length is slightly smaller than which defined below.
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AutoTArray<int32_t, std::numeric_limits<CounterValue>::digits> indexes;
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while (aOrdinal > 0) {
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--aOrdinal;
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indexes.AppendElement(aOrdinal % n);
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aOrdinal /= n;
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}
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aResult.Truncate();
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for (auto i = indexes.Length(); i > 0; --i) {
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aResult.Append(aSymbols[indexes[i - 1]]);
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}
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return true;
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}
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static bool GetNumericCounterText(CounterValue aOrdinal, nsAString& aResult,
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Span<const nsString> aSymbols) {
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MOZ_ASSERT(aSymbols.Length() >= 2, "Too few symbols for numeric counter.");
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MOZ_ASSERT(aOrdinal >= 0, "Invalid ordinal.");
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if (aOrdinal == 0) {
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aResult = aSymbols[0];
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return true;
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}
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auto n = aSymbols.Length();
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AutoTArray<int32_t, std::numeric_limits<CounterValue>::digits> indexes;
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while (aOrdinal > 0) {
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indexes.AppendElement(aOrdinal % n);
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aOrdinal /= n;
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}
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aResult.Truncate();
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for (auto i = indexes.Length(); i > 0; --i) {
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aResult.Append(aSymbols[indexes[i - 1]]);
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}
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return true;
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}
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static bool GetAdditiveCounterText(CounterValue aOrdinal, nsAString& aResult,
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Span<const AdditiveSymbol> aSymbols) {
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MOZ_ASSERT(aOrdinal >= 0, "Invalid ordinal.");
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if (aOrdinal == 0) {
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const AdditiveSymbol& last = aSymbols[aSymbols.Length() - 1];
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if (last.weight == 0) {
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aResult = last.symbol;
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return true;
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}
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return false;
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}
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aResult.Truncate();
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size_t length = 0;
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for (size_t i = 0, iEnd = aSymbols.Length(); i < iEnd; ++i) {
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const AdditiveSymbol& symbol = aSymbols[i];
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if (symbol.weight == 0) {
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break;
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}
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CounterValue times = aOrdinal / symbol.weight;
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if (times > 0) {
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auto symbolLength = symbol.symbol.Length();
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if (symbolLength > 0) {
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length += times * symbolLength;
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if (times > LENGTH_LIMIT || symbolLength > LENGTH_LIMIT ||
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length > LENGTH_LIMIT) {
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return false;
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}
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for (CounterValue j = 0; j < times; ++j) {
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aResult.Append(symbol.symbol);
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}
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}
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aOrdinal -= times * symbol.weight;
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}
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}
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return aOrdinal == 0;
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}
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static bool DecimalToText(CounterValue aOrdinal, nsAString& aResult) {
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aResult.AppendInt(aOrdinal);
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return true;
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}
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// We know cjk-ideographic need 31 characters to display 99,999,999,999,999,999
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// georgian needs 6 at most
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// armenian needs 12 at most
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// hebrew may need more...
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#define NUM_BUF_SIZE 34
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enum CJKIdeographicLang { CHINESE, KOREAN, JAPANESE };
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struct CJKIdeographicData {
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char16_t digit[10];
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char16_t unit[3];
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char16_t unit10K[2];
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uint8_t lang;
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bool informal;
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};
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static const CJKIdeographicData gDataJapaneseInformal = {
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{0x3007, 0x4e00, 0x4e8c, 0x4e09, 0x56db, 0x4e94, 0x516d, 0x4e03, 0x516b,
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0x4e5d}, // digit
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{0x5341, 0x767e, 0x5343}, // unit
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{0x4e07, 0x5104}, // unit10K
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JAPANESE, // lang
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true // informal
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};
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static const CJKIdeographicData gDataJapaneseFormal = {
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{0x96f6, 0x58f1, 0x5f10, 0x53c2, 0x56db, 0x4f0d, 0x516d, 0x4e03, 0x516b,
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0x4e5d}, // digit
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{0x62fe, 0x767e, 0x9621}, // unit
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{0x842c, 0x5104}, // unit10K
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JAPANESE, // lang
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false // informal
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};
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static const CJKIdeographicData gDataKoreanHangulFormal = {
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{0xc601, 0xc77c, 0xc774, 0xc0bc, 0xc0ac, 0xc624, 0xc721, 0xce60, 0xd314,
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0xad6c}, // digit
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{0xc2ed, 0xbc31, 0xcc9c}, // unit
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{0xb9cc, 0xc5b5}, // unit10K
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KOREAN, // lang
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false // informal
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};
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static const CJKIdeographicData gDataKoreanHanjaInformal = {
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{0x96f6, 0x4e00, 0x4e8c, 0x4e09, 0x56db, 0x4e94, 0x516d, 0x4e03, 0x516b,
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0x4e5d}, // digit
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{0x5341, 0x767e, 0x5343}, // unit
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{0x842c, 0x5104}, // unit10K
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KOREAN, // lang
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true // informal
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};
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static const CJKIdeographicData gDataKoreanHanjaFormal = {
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{0x96f6, 0x58f9, 0x8cb3, 0x53c3, 0x56db, 0x4e94, 0x516d, 0x4e03, 0x516b,
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0x4e5d}, // digit
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{0x62fe, 0x767e, 0x4edf}, // unit
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{0x842c, 0x5104}, // unit10K
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KOREAN, // lang
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false // informal
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};
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static const CJKIdeographicData gDataSimpChineseInformal = {
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{0x96f6, 0x4e00, 0x4e8c, 0x4e09, 0x56db, 0x4e94, 0x516d, 0x4e03, 0x516b,
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0x4e5d}, // digit
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{0x5341, 0x767e, 0x5343}, // unit
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{0x4e07, 0x4ebf}, // unit10K
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CHINESE, // lang
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true // informal
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};
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static const CJKIdeographicData gDataSimpChineseFormal = {
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{0x96f6, 0x58f9, 0x8d30, 0x53c1, 0x8086, 0x4f0d, 0x9646, 0x67d2, 0x634c,
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0x7396}, // digit
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{0x62fe, 0x4f70, 0x4edf}, // unit
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{0x4e07, 0x4ebf}, // unit10K
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CHINESE, // lang
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false // informal
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};
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static const CJKIdeographicData gDataTradChineseInformal = {
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{0x96f6, 0x4e00, 0x4e8c, 0x4e09, 0x56db, 0x4e94, 0x516d, 0x4e03, 0x516b,
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0x4e5d}, // digit
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{0x5341, 0x767e, 0x5343}, // unit
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{0x842c, 0x5104}, // unit10K
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CHINESE, // lang
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true // informal
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};
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static const CJKIdeographicData gDataTradChineseFormal = {
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{0x96f6, 0x58f9, 0x8cb3, 0x53c3, 0x8086, 0x4f0d, 0x9678, 0x67d2, 0x634c,
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0x7396}, // digit
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{0x62fe, 0x4f70, 0x4edf}, // unit
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{0x842c, 0x5104}, // unit10K
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CHINESE, // lang
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false // informal
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};
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static bool CJKIdeographicToText(CounterValue aOrdinal, nsAString& aResult,
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const CJKIdeographicData& data) {
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NS_ASSERTION(aOrdinal >= 0, "Only accept non-negative ordinal");
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char16_t buf[NUM_BUF_SIZE];
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int32_t idx = NUM_BUF_SIZE;
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int32_t pos = 0;
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bool needZero = (aOrdinal == 0);
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int32_t unitidx = 0, unit10Kidx = 0;
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do {
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unitidx = pos % 4;
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if (unitidx == 0) {
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unit10Kidx = pos / 4;
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}
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auto cur = static_cast<MakeUnsigned<CounterValue>::Type>(aOrdinal) % 10;
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if (cur == 0) {
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if (needZero) {
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needZero = false;
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buf[--idx] = data.digit[0];
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}
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} else {
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if (data.lang == CHINESE) {
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needZero = true;
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}
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if (unit10Kidx != 0) {
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if (data.lang == KOREAN && idx != NUM_BUF_SIZE) {
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buf[--idx] = ' ';
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}
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buf[--idx] = data.unit10K[unit10Kidx - 1];
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}
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if (unitidx != 0) {
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buf[--idx] = data.unit[unitidx - 1];
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}
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if (cur != 1) {
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buf[--idx] = data.digit[cur];
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} else {
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bool needOne = true;
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if (data.informal) {
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switch (data.lang) {
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case CHINESE:
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if (unitidx == 1 &&
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(aOrdinal == 1 || (pos > 4 && aOrdinal % 1000 == 1))) {
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needOne = false;
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}
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break;
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case JAPANESE:
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if (unitidx > 0 &&
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(unitidx != 3 || (pos == 3 && aOrdinal == 1))) {
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needOne = false;
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}
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break;
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case KOREAN:
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if (unitidx > 0 || (pos == 4 && (aOrdinal % 1000) == 1)) {
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needOne = false;
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}
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break;
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}
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}
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if (needOne) {
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buf[--idx] = data.digit[1];
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}
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}
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unit10Kidx = 0;
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}
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aOrdinal /= 10;
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pos++;
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} while (aOrdinal > 0);
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aResult.Assign(buf + idx, NUM_BUF_SIZE - idx);
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return true;
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}
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#define HEBREW_GERESH 0x05F3
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static const char16_t gHebrewDigit[22] = {
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// 1 2 3 4 5 6 7 8 9
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0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7, 0x05D8,
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// 10 20 30 40 50 60 70 80 90
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0x05D9, 0x05DB, 0x05DC, 0x05DE, 0x05E0, 0x05E1, 0x05E2, 0x05E4, 0x05E6,
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// 100 200 300 400
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0x05E7, 0x05E8, 0x05E9, 0x05EA};
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static bool HebrewToText(CounterValue aOrdinal, nsAString& aResult) {
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if (aOrdinal < 1 || aOrdinal > 999999) {
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return false;
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}
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bool outputSep = false;
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nsAutoString allText, thousandsGroup;
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do {
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thousandsGroup.Truncate();
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int32_t n3 = aOrdinal % 1000;
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// Process digit for 100 - 900
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for (int32_t n1 = 400; n1 > 0;) {
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if (n3 >= n1) {
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n3 -= n1;
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thousandsGroup.Append(gHebrewDigit[(n1 / 100) - 1 + 18]);
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} else {
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n1 -= 100;
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} // if
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} // for
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// Process digit for 10 - 90
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int32_t n2;
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if (n3 >= 10) {
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// Special process for 15 and 16
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if ((15 == n3) || (16 == n3)) {
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// Special rule for religious reason...
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// 15 is represented by 9 and 6, not 10 and 5
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// 16 is represented by 9 and 7, not 10 and 6
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n2 = 9;
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thousandsGroup.Append(gHebrewDigit[n2 - 1]);
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} else {
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n2 = n3 - (n3 % 10);
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thousandsGroup.Append(gHebrewDigit[(n2 / 10) - 1 + 9]);
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} // if
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n3 -= n2;
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} // if
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// Process digit for 1 - 9
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if (n3 > 0) thousandsGroup.Append(gHebrewDigit[n3 - 1]);
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if (outputSep) thousandsGroup.Append((char16_t)HEBREW_GERESH);
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if (allText.IsEmpty())
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allText = thousandsGroup;
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else
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allText = thousandsGroup + allText;
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aOrdinal /= 1000;
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outputSep = true;
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} while (aOrdinal >= 1);
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aResult = allText;
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return true;
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}
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// Convert ordinal to Ethiopic numeric representation.
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// The detail is available at http://www.ethiopic.org/Numerals/
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// The algorithm used here is based on the pseudo-code put up there by
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// Daniel Yacob <yacob@geez.org>.
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// Another reference is Unicode 3.0 standard section 11.1.
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#define ETHIOPIC_ONE 0x1369
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#define ETHIOPIC_TEN 0x1372
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#define ETHIOPIC_HUNDRED 0x137B
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#define ETHIOPIC_TEN_THOUSAND 0x137C
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static bool EthiopicToText(CounterValue aOrdinal, nsAString& aResult) {
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if (aOrdinal < 1) {
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return false;
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}
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nsAutoString asciiNumberString; // decimal string representation of ordinal
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DecimalToText(aOrdinal, asciiNumberString);
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uint8_t asciiStringLength = asciiNumberString.Length();
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// If number length is odd, add a leading "0"
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// the leading "0" preconditions the string to always have the
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// leading tens place populated, this avoids a check within the loop.
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// If we didn't add the leading "0", decrement asciiStringLength so
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// it will be equivalent to a zero-based index in both cases.
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if (asciiStringLength & 1) {
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asciiNumberString.InsertLiteral(u"0", 0);
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} else {
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asciiStringLength--;
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}
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aResult.Truncate();
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// Iterate from the highest digits to lowest
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// indexFromLeft indexes digits (0 = most significant)
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// groupIndexFromRight indexes pairs of digits (0 = least significant)
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for (uint8_t indexFromLeft = 0, groupIndexFromRight = asciiStringLength >> 1;
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indexFromLeft <= asciiStringLength;
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indexFromLeft += 2, groupIndexFromRight--) {
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uint8_t tensValue = asciiNumberString.CharAt(indexFromLeft) & 0x0F;
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uint8_t unitsValue = asciiNumberString.CharAt(indexFromLeft + 1) & 0x0F;
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uint8_t groupValue = tensValue * 10 + unitsValue;
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bool oddGroup = (groupIndexFromRight & 1);
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// we want to clear ETHIOPIC_ONE when it is superfluous
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if (aOrdinal > 1 && groupValue == 1 && // one without a leading ten
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(oddGroup ||
|
|
indexFromLeft == 0)) { // preceding (100) or leading the sequence
|
|
unitsValue = 0;
|
|
}
|
|
|
|
// put it all together...
|
|
if (tensValue) {
|
|
// map onto Ethiopic "tens":
|
|
aResult.Append((char16_t)(tensValue + ETHIOPIC_TEN - 1));
|
|
}
|
|
if (unitsValue) {
|
|
// map onto Ethiopic "units":
|
|
aResult.Append((char16_t)(unitsValue + ETHIOPIC_ONE - 1));
|
|
}
|
|
// Add a separator for all even groups except the last,
|
|
// and for odd groups with non-zero value.
|
|
if (oddGroup) {
|
|
if (groupValue) {
|
|
aResult.Append((char16_t)ETHIOPIC_HUNDRED);
|
|
}
|
|
} else {
|
|
if (groupIndexFromRight) {
|
|
aResult.Append((char16_t)ETHIOPIC_TEN_THOUSAND);
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static uint8_t GetDefaultSpeakAsForSystem(uint8_t aSystem) {
|
|
MOZ_ASSERT(aSystem != NS_STYLE_COUNTER_SYSTEM_EXTENDS,
|
|
"Extends system does not have static default speak-as");
|
|
switch (aSystem) {
|
|
case NS_STYLE_COUNTER_SYSTEM_ALPHABETIC:
|
|
return NS_STYLE_COUNTER_SPEAKAS_SPELL_OUT;
|
|
case NS_STYLE_COUNTER_SYSTEM_CYCLIC:
|
|
return NS_STYLE_COUNTER_SPEAKAS_BULLETS;
|
|
default:
|
|
return NS_STYLE_COUNTER_SPEAKAS_NUMBERS;
|
|
}
|
|
}
|
|
|
|
static bool SystemUsesNegativeSign(uint8_t aSystem) {
|
|
MOZ_ASSERT(aSystem != NS_STYLE_COUNTER_SYSTEM_EXTENDS,
|
|
"Cannot check this for extending style");
|
|
switch (aSystem) {
|
|
case NS_STYLE_COUNTER_SYSTEM_SYMBOLIC:
|
|
case NS_STYLE_COUNTER_SYSTEM_ALPHABETIC:
|
|
case NS_STYLE_COUNTER_SYSTEM_NUMERIC:
|
|
case NS_STYLE_COUNTER_SYSTEM_ADDITIVE:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
class BuiltinCounterStyle : public CounterStyle {
|
|
public:
|
|
constexpr BuiltinCounterStyle(int32_t aStyle, nsStaticAtom* aName)
|
|
: CounterStyle(aStyle), mName(aName) {}
|
|
|
|
nsStaticAtom* GetStyleName() const { return mName; }
|
|
|
|
virtual void GetPrefix(nsAString& aResult) override;
|
|
virtual void GetSuffix(nsAString& aResult) override;
|
|
virtual void GetSpokenCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult,
|
|
bool& aIsBullet) override;
|
|
virtual bool IsBullet() override;
|
|
|
|
virtual void GetNegative(NegativeType& aResult) override;
|
|
virtual bool IsOrdinalInRange(CounterValue aOrdinal) override;
|
|
virtual bool IsOrdinalInAutoRange(CounterValue aOrdinal) override;
|
|
virtual void GetPad(PadType& aResult) override;
|
|
virtual CounterStyle* GetFallback() override;
|
|
virtual uint8_t GetSpeakAs() override;
|
|
virtual bool UseNegativeSign() override;
|
|
|
|
virtual bool GetInitialCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult, bool& aIsRTL) override;
|
|
|
|
protected:
|
|
constexpr BuiltinCounterStyle(const BuiltinCounterStyle& aOther)
|
|
: CounterStyle(aOther.mStyle), mName(aOther.mName) {}
|
|
|
|
private:
|
|
nsStaticAtom* mName;
|
|
};
|
|
|
|
/* virtual */
|
|
void BuiltinCounterStyle::GetPrefix(nsAString& aResult) { aResult.Truncate(); }
|
|
|
|
/* virtual */
|
|
void BuiltinCounterStyle::GetSuffix(nsAString& aResult) {
|
|
switch (mStyle) {
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
aResult.Truncate();
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
case NS_STYLE_LIST_STYLE_ETHIOPIC_NUMERIC:
|
|
aResult = ' ';
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
|
|
aResult = 0x3001;
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
|
|
aResult.AssignLiteral(u", ");
|
|
break;
|
|
|
|
default:
|
|
aResult.AssignLiteral(u". ");
|
|
break;
|
|
}
|
|
}
|
|
|
|
static const char16_t kDiscCharacter = 0x2022;
|
|
static const char16_t kCircleCharacter = 0x25e6;
|
|
static const char16_t kSquareCharacter = 0x25fe;
|
|
static const char16_t kRightPointingCharacter = 0x25b8;
|
|
static const char16_t kLeftPointingCharacter = 0x25c2;
|
|
static const char16_t kDownPointingCharacter = 0x25be;
|
|
|
|
/* virtual */
|
|
void BuiltinCounterStyle::GetSpokenCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult,
|
|
bool& aIsBullet) {
|
|
switch (mStyle) {
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN: {
|
|
// Same as the initial representation
|
|
bool isRTL;
|
|
GetInitialCounterText(aOrdinal, aWritingMode, aResult, isRTL);
|
|
aIsBullet = true;
|
|
break;
|
|
}
|
|
default:
|
|
CounterStyle::GetSpokenCounterText(aOrdinal, aWritingMode, aResult,
|
|
aIsBullet);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
bool BuiltinCounterStyle::IsBullet() {
|
|
switch (mStyle) {
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static const char16_t gJapaneseNegative[] = {0x30de, 0x30a4, 0x30ca, 0x30b9,
|
|
0x0000};
|
|
static const char16_t gKoreanNegative[] = {0xb9c8, 0xc774, 0xb108,
|
|
0xc2a4, 0x0020, 0x0000};
|
|
static const char16_t gSimpChineseNegative[] = {0x8d1f, 0x0000};
|
|
static const char16_t gTradChineseNegative[] = {0x8ca0, 0x0000};
|
|
|
|
/* virtual */
|
|
void BuiltinCounterStyle::GetNegative(NegativeType& aResult) {
|
|
switch (mStyle) {
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
|
|
aResult.before = gJapaneseNegative;
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
|
|
aResult.before = gKoreanNegative;
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
|
|
aResult.before = gSimpChineseNegative;
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
|
|
aResult.before = gTradChineseNegative;
|
|
break;
|
|
|
|
default:
|
|
aResult.before.AssignLiteral(u"-");
|
|
}
|
|
aResult.after.Truncate();
|
|
}
|
|
|
|
/* virtual */
|
|
bool BuiltinCounterStyle::IsOrdinalInRange(CounterValue aOrdinal) {
|
|
switch (mStyle) {
|
|
default:
|
|
// cyclic
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
// use DecimalToText
|
|
case NS_STYLE_LIST_STYLE_DECIMAL:
|
|
// use CJKIdeographicToText
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
|
|
return true;
|
|
|
|
// use EthiopicToText
|
|
case NS_STYLE_LIST_STYLE_ETHIOPIC_NUMERIC:
|
|
return aOrdinal >= 1;
|
|
|
|
// use HebrewToText
|
|
case NS_STYLE_LIST_STYLE_HEBREW:
|
|
return aOrdinal >= 1 && aOrdinal <= 999999;
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
bool BuiltinCounterStyle::IsOrdinalInAutoRange(CounterValue aOrdinal) {
|
|
switch (mStyle) {
|
|
// cyclic:
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
// numeric:
|
|
case NS_STYLE_LIST_STYLE_DECIMAL:
|
|
return true;
|
|
|
|
// additive:
|
|
case NS_STYLE_LIST_STYLE_HEBREW:
|
|
return aOrdinal >= 0;
|
|
|
|
// complex predefined:
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_ETHIOPIC_NUMERIC:
|
|
return IsOrdinalInRange(aOrdinal);
|
|
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unknown counter style");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
void BuiltinCounterStyle::GetPad(PadType& aResult) {
|
|
aResult.width = 0;
|
|
aResult.symbol.Truncate();
|
|
}
|
|
|
|
/* virtual */
|
|
CounterStyle* BuiltinCounterStyle::GetFallback() {
|
|
// Fallback of dependent builtin counter styles are handled in class
|
|
// DependentBuiltinCounterStyle.
|
|
return CounterStyleManager::GetDecimalStyle();
|
|
}
|
|
|
|
/* virtual */
|
|
uint8_t BuiltinCounterStyle::GetSpeakAs() {
|
|
switch (mStyle) {
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
return NS_STYLE_COUNTER_SPEAKAS_BULLETS;
|
|
default:
|
|
return NS_STYLE_COUNTER_SPEAKAS_NUMBERS;
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
bool BuiltinCounterStyle::UseNegativeSign() {
|
|
switch (mStyle) {
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
return false;
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
bool BuiltinCounterStyle::GetInitialCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult,
|
|
bool& aIsRTL) {
|
|
aIsRTL = false;
|
|
switch (mStyle) {
|
|
// used by counters & extends counter-style code only
|
|
// XXX We really need to do this the same way we do list bullets.
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
aResult.Truncate();
|
|
return true;
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
aResult.Assign(kDiscCharacter);
|
|
return true;
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
aResult.Assign(kCircleCharacter);
|
|
return true;
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
aResult.Assign(kSquareCharacter);
|
|
return true;
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
if (aWritingMode.IsVertical()) {
|
|
aResult.Assign(kDownPointingCharacter);
|
|
} else if (aWritingMode.IsBidiLTR()) {
|
|
aResult.Assign(kRightPointingCharacter);
|
|
} else {
|
|
aResult.Assign(kLeftPointingCharacter);
|
|
}
|
|
return true;
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
if (!aWritingMode.IsVertical()) {
|
|
aResult.Assign(kDownPointingCharacter);
|
|
} else if (aWritingMode.IsVerticalLR()) {
|
|
aResult.Assign(kRightPointingCharacter);
|
|
} else {
|
|
aResult.Assign(kLeftPointingCharacter);
|
|
}
|
|
return true;
|
|
|
|
case NS_STYLE_LIST_STYLE_DECIMAL:
|
|
return DecimalToText(aOrdinal, aResult);
|
|
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
|
|
return CJKIdeographicToText(aOrdinal, aResult, gDataTradChineseInformal);
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
|
|
return CJKIdeographicToText(aOrdinal, aResult, gDataTradChineseFormal);
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
|
|
return CJKIdeographicToText(aOrdinal, aResult, gDataSimpChineseInformal);
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
|
|
return CJKIdeographicToText(aOrdinal, aResult, gDataSimpChineseFormal);
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
|
|
return CJKIdeographicToText(aOrdinal, aResult, gDataJapaneseInformal);
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
|
|
return CJKIdeographicToText(aOrdinal, aResult, gDataJapaneseFormal);
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
|
|
return CJKIdeographicToText(aOrdinal, aResult, gDataKoreanHangulFormal);
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
|
|
return CJKIdeographicToText(aOrdinal, aResult, gDataKoreanHanjaInformal);
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
|
|
return CJKIdeographicToText(aOrdinal, aResult, gDataKoreanHanjaFormal);
|
|
|
|
case NS_STYLE_LIST_STYLE_HEBREW:
|
|
aIsRTL = true;
|
|
return HebrewToText(aOrdinal, aResult);
|
|
|
|
case NS_STYLE_LIST_STYLE_ETHIOPIC_NUMERIC:
|
|
return EthiopicToText(aOrdinal, aResult);
|
|
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unknown builtin counter style");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static constexpr BuiltinCounterStyle gBuiltinStyleTable[] = {
|
|
#define BUILTIN_COUNTER_STYLE(value_, atom_) \
|
|
{NS_STYLE_LIST_STYLE_##value_, nsGkAtoms::atom_},
|
|
#include "BuiltinCounterStyleList.h"
|
|
#undef BUILTIN_COUNTER_STYLE
|
|
};
|
|
|
|
#define BUILTIN_COUNTER_STYLE(value_, atom_) \
|
|
static_assert(gBuiltinStyleTable[NS_STYLE_LIST_STYLE_##value_].GetStyle() == \
|
|
NS_STYLE_LIST_STYLE_##value_, \
|
|
"Builtin counter style " #atom_ \
|
|
" has unmatched index and value.");
|
|
#include "BuiltinCounterStyleList.h"
|
|
#undef BUILTIN_COUNTER_STYLE
|
|
|
|
class DependentBuiltinCounterStyle final : public BuiltinCounterStyle {
|
|
public:
|
|
DependentBuiltinCounterStyle(int32_t aStyle, CounterStyleManager* aManager)
|
|
: BuiltinCounterStyle(gBuiltinStyleTable[aStyle]), mManager(aManager) {
|
|
NS_ASSERTION(IsDependentStyle(), "Not a dependent builtin style");
|
|
MOZ_ASSERT(!IsCustomStyle(), "Not a builtin style");
|
|
}
|
|
|
|
virtual CounterStyle* GetFallback() override;
|
|
|
|
void* operator new(size_t sz, nsPresContext* aPresContext) {
|
|
return aPresContext->PresShell()->AllocateByObjectID(
|
|
eArenaObjectID_DependentBuiltinCounterStyle, sz);
|
|
}
|
|
|
|
void Destroy() {
|
|
PresShell* presShell = mManager->PresContext()->PresShell();
|
|
this->~DependentBuiltinCounterStyle();
|
|
presShell->FreeByObjectID(eArenaObjectID_DependentBuiltinCounterStyle,
|
|
this);
|
|
}
|
|
|
|
private:
|
|
~DependentBuiltinCounterStyle() {}
|
|
|
|
CounterStyleManager* mManager;
|
|
};
|
|
|
|
/* virtual */
|
|
CounterStyle* DependentBuiltinCounterStyle::GetFallback() {
|
|
switch (GetStyle()) {
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
|
|
// These styles all have a larger range than cjk-decimal, so the
|
|
// only case fallback is accessed is that they are extended.
|
|
// Since extending styles will cache the data themselves, we need
|
|
// not cache it here.
|
|
return mManager->ResolveCounterStyle(nsGkAtoms::cjk_decimal);
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Not a valid dependent builtin style");
|
|
return BuiltinCounterStyle::GetFallback();
|
|
}
|
|
}
|
|
|
|
class CustomCounterStyle final : public CounterStyle {
|
|
public:
|
|
CustomCounterStyle(CounterStyleManager* aManager,
|
|
const RawServoCounterStyleRule* aRule)
|
|
: CounterStyle(NS_STYLE_LIST_STYLE_CUSTOM),
|
|
mManager(aManager),
|
|
mRule(aRule),
|
|
mRuleGeneration(Servo_CounterStyleRule_GetGeneration(aRule)),
|
|
mSystem(Servo_CounterStyleRule_GetSystem(aRule)),
|
|
mFlags(0),
|
|
mFallback(nullptr),
|
|
mSpeakAsCounter(nullptr),
|
|
mExtends(nullptr),
|
|
mExtendsRoot(nullptr) {}
|
|
|
|
// This method will clear all cached data in the style and update the
|
|
// generation number of the rule. It should be called when the rule of
|
|
// this style is changed.
|
|
void ResetCachedData();
|
|
|
|
// This method will reset all cached data which may depend on other
|
|
// counter style. It will reset all pointers to other counter styles.
|
|
// For counter style extends other, in addition, all fields will be
|
|
// reset to uninitialized state. This method should be called when any
|
|
// other counter style is added, removed, or changed.
|
|
void ResetDependentData();
|
|
|
|
const RawServoCounterStyleRule* GetRule() const { return mRule; }
|
|
uint32_t GetRuleGeneration() const { return mRuleGeneration; }
|
|
|
|
virtual void GetPrefix(nsAString& aResult) override;
|
|
virtual void GetSuffix(nsAString& aResult) override;
|
|
virtual void GetSpokenCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult,
|
|
bool& aIsBullet) override;
|
|
virtual bool IsBullet() override;
|
|
|
|
virtual void GetNegative(NegativeType& aResult) override;
|
|
virtual bool IsOrdinalInRange(CounterValue aOrdinal) override;
|
|
virtual bool IsOrdinalInAutoRange(CounterValue aOrdinal) override;
|
|
virtual void GetPad(PadType& aResult) override;
|
|
virtual CounterStyle* GetFallback() override;
|
|
virtual uint8_t GetSpeakAs() override;
|
|
virtual bool UseNegativeSign() override;
|
|
|
|
virtual void CallFallbackStyle(CounterValue aOrdinal,
|
|
WritingMode aWritingMode, nsAString& aResult,
|
|
bool& aIsRTL) override;
|
|
virtual bool GetInitialCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult, bool& aIsRTL) override;
|
|
|
|
bool IsExtendsSystem() { return mSystem == NS_STYLE_COUNTER_SYSTEM_EXTENDS; }
|
|
|
|
void* operator new(size_t sz, nsPresContext* aPresContext) {
|
|
return aPresContext->PresShell()->AllocateByObjectID(
|
|
eArenaObjectID_CustomCounterStyle, sz);
|
|
}
|
|
|
|
void Destroy() {
|
|
PresShell* presShell = mManager->PresContext()->PresShell();
|
|
this->~CustomCounterStyle();
|
|
presShell->FreeByObjectID(eArenaObjectID_CustomCounterStyle, this);
|
|
}
|
|
|
|
private:
|
|
~CustomCounterStyle() {}
|
|
|
|
Span<const nsString> GetSymbols();
|
|
Span<const AdditiveSymbol> GetAdditiveSymbols();
|
|
|
|
// The speak-as values of counter styles may form a loop, and the
|
|
// loops may have complex interaction with the loop formed by
|
|
// extending. To solve this problem, the computation of speak-as is
|
|
// divided into two phases:
|
|
// 1. figure out the raw value, by ComputeRawSpeakAs, and
|
|
// 2. eliminate loop, by ComputeSpeakAs.
|
|
// See comments before the definitions of these methods for details.
|
|
uint8_t GetSpeakAsAutoValue();
|
|
void ComputeRawSpeakAs(uint8_t& aSpeakAs, CounterStyle*& aSpeakAsCounter);
|
|
CounterStyle* ComputeSpeakAs();
|
|
|
|
CounterStyle* ComputeExtends();
|
|
CounterStyle* GetExtends();
|
|
CounterStyle* GetExtendsRoot();
|
|
|
|
// CounterStyleManager should always overlive any CounterStyle as it
|
|
// is owned by nsPresContext, and will be released after all nodes and
|
|
// frames are released.
|
|
CounterStyleManager* mManager;
|
|
|
|
RefPtr<const RawServoCounterStyleRule> mRule;
|
|
uint32_t mRuleGeneration;
|
|
|
|
uint8_t mSystem;
|
|
// GetSpeakAs will ensure that private member mSpeakAs is initialized before
|
|
// used
|
|
MOZ_INIT_OUTSIDE_CTOR uint8_t mSpeakAs;
|
|
|
|
enum {
|
|
// loop detection
|
|
FLAG_EXTENDS_VISITED = 1 << 0,
|
|
FLAG_EXTENDS_LOOP = 1 << 1,
|
|
FLAG_SPEAKAS_VISITED = 1 << 2,
|
|
FLAG_SPEAKAS_LOOP = 1 << 3,
|
|
// field status
|
|
FLAG_NEGATIVE_INITED = 1 << 4,
|
|
FLAG_PREFIX_INITED = 1 << 5,
|
|
FLAG_SUFFIX_INITED = 1 << 6,
|
|
FLAG_PAD_INITED = 1 << 7,
|
|
FLAG_SPEAKAS_INITED = 1 << 8,
|
|
};
|
|
uint16_t mFlags;
|
|
|
|
// Fields below will be initialized when necessary.
|
|
StyleOwnedSlice<nsString> mSymbols;
|
|
StyleOwnedSlice<AdditiveSymbol> mAdditiveSymbols;
|
|
NegativeType mNegative;
|
|
nsString mPrefix, mSuffix;
|
|
PadType mPad;
|
|
|
|
// CounterStyleManager will guarantee that none of the pointers below
|
|
// refers to a freed CounterStyle. There are two possible cases where
|
|
// the manager will release its reference to a CounterStyle: 1. the
|
|
// manager itself is released, 2. a rule is invalidated. In the first
|
|
// case, all counter style are removed from the manager, and should
|
|
// also have been dereferenced from other objects. All styles will be
|
|
// released all together. In the second case, CounterStyleManager::
|
|
// NotifyRuleChanged will guarantee that all pointers will be reset
|
|
// before any CounterStyle is released.
|
|
|
|
CounterStyle* mFallback;
|
|
// This field refers to the last counter in a speak-as chain.
|
|
// That counter must not speak as another counter.
|
|
CounterStyle* mSpeakAsCounter;
|
|
|
|
CounterStyle* mExtends;
|
|
// This field refers to the last counter in the extends chain. The
|
|
// counter must be either a builtin style or a style whose system is
|
|
// not 'extends'.
|
|
CounterStyle* mExtendsRoot;
|
|
};
|
|
|
|
void CustomCounterStyle::ResetCachedData() {
|
|
mSymbols.Clear();
|
|
mAdditiveSymbols.Clear();
|
|
mFlags &= ~(FLAG_NEGATIVE_INITED | FLAG_PREFIX_INITED | FLAG_SUFFIX_INITED |
|
|
FLAG_PAD_INITED | FLAG_SPEAKAS_INITED);
|
|
mFallback = nullptr;
|
|
mSpeakAsCounter = nullptr;
|
|
mExtends = nullptr;
|
|
mExtendsRoot = nullptr;
|
|
mRuleGeneration = Servo_CounterStyleRule_GetGeneration(mRule);
|
|
}
|
|
|
|
void CustomCounterStyle::ResetDependentData() {
|
|
mFlags &= ~FLAG_SPEAKAS_INITED;
|
|
mSpeakAsCounter = nullptr;
|
|
mFallback = nullptr;
|
|
mExtends = nullptr;
|
|
mExtendsRoot = nullptr;
|
|
if (IsExtendsSystem()) {
|
|
mFlags &= ~(FLAG_NEGATIVE_INITED | FLAG_PREFIX_INITED | FLAG_SUFFIX_INITED |
|
|
FLAG_PAD_INITED);
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
void CustomCounterStyle::GetPrefix(nsAString& aResult) {
|
|
if (!(mFlags & FLAG_PREFIX_INITED)) {
|
|
mFlags |= FLAG_PREFIX_INITED;
|
|
|
|
if (!Servo_CounterStyleRule_GetPrefix(mRule, &mPrefix)) {
|
|
if (IsExtendsSystem()) {
|
|
GetExtends()->GetPrefix(mPrefix);
|
|
} else {
|
|
mPrefix.Truncate();
|
|
}
|
|
}
|
|
}
|
|
aResult = mPrefix;
|
|
}
|
|
|
|
/* virtual */
|
|
void CustomCounterStyle::GetSuffix(nsAString& aResult) {
|
|
if (!(mFlags & FLAG_SUFFIX_INITED)) {
|
|
mFlags |= FLAG_SUFFIX_INITED;
|
|
|
|
if (!Servo_CounterStyleRule_GetSuffix(mRule, &mSuffix)) {
|
|
if (IsExtendsSystem()) {
|
|
GetExtends()->GetSuffix(mSuffix);
|
|
} else {
|
|
mSuffix.AssignLiteral(u". ");
|
|
}
|
|
}
|
|
}
|
|
aResult = mSuffix;
|
|
}
|
|
|
|
/* virtual */
|
|
void CustomCounterStyle::GetSpokenCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult,
|
|
bool& aIsBullet) {
|
|
if (GetSpeakAs() != NS_STYLE_COUNTER_SPEAKAS_OTHER) {
|
|
CounterStyle::GetSpokenCounterText(aOrdinal, aWritingMode, aResult,
|
|
aIsBullet);
|
|
} else {
|
|
MOZ_ASSERT(mSpeakAsCounter,
|
|
"mSpeakAsCounter should have been initialized.");
|
|
mSpeakAsCounter->GetSpokenCounterText(aOrdinal, aWritingMode, aResult,
|
|
aIsBullet);
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
bool CustomCounterStyle::IsBullet() {
|
|
switch (mSystem) {
|
|
case NS_STYLE_COUNTER_SYSTEM_CYCLIC:
|
|
// Only use ::-moz-list-bullet for cyclic system
|
|
return true;
|
|
case NS_STYLE_COUNTER_SYSTEM_EXTENDS:
|
|
return GetExtendsRoot()->IsBullet();
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
void CustomCounterStyle::GetNegative(NegativeType& aResult) {
|
|
if (!(mFlags & FLAG_NEGATIVE_INITED)) {
|
|
mFlags |= FLAG_NEGATIVE_INITED;
|
|
if (!Servo_CounterStyleRule_GetNegative(mRule, &mNegative.before,
|
|
&mNegative.after)) {
|
|
if (IsExtendsSystem()) {
|
|
GetExtends()->GetNegative(mNegative);
|
|
} else {
|
|
mNegative.before.AssignLiteral(u"-");
|
|
mNegative.after.Truncate();
|
|
}
|
|
}
|
|
}
|
|
aResult = mNegative;
|
|
}
|
|
|
|
/* virtual */
|
|
bool CustomCounterStyle::IsOrdinalInRange(CounterValue aOrdinal) {
|
|
auto inRange = Servo_CounterStyleRule_IsInRange(mRule, aOrdinal);
|
|
switch (inRange) {
|
|
case StyleIsOrdinalInRange::InRange:
|
|
return true;
|
|
case StyleIsOrdinalInRange::NotInRange:
|
|
return false;
|
|
case StyleIsOrdinalInRange::NoOrdinalSpecified:
|
|
if (IsExtendsSystem()) {
|
|
return GetExtends()->IsOrdinalInRange(aOrdinal);
|
|
}
|
|
break;
|
|
case StyleIsOrdinalInRange::Auto:
|
|
break;
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unkown result from IsInRange?");
|
|
}
|
|
return IsOrdinalInAutoRange(aOrdinal);
|
|
}
|
|
|
|
/* virtual */
|
|
bool CustomCounterStyle::IsOrdinalInAutoRange(CounterValue aOrdinal) {
|
|
switch (mSystem) {
|
|
case NS_STYLE_COUNTER_SYSTEM_CYCLIC:
|
|
case NS_STYLE_COUNTER_SYSTEM_NUMERIC:
|
|
case NS_STYLE_COUNTER_SYSTEM_FIXED:
|
|
return true;
|
|
case NS_STYLE_COUNTER_SYSTEM_ALPHABETIC:
|
|
case NS_STYLE_COUNTER_SYSTEM_SYMBOLIC:
|
|
return aOrdinal >= 1;
|
|
case NS_STYLE_COUNTER_SYSTEM_ADDITIVE:
|
|
return aOrdinal >= 0;
|
|
case NS_STYLE_COUNTER_SYSTEM_EXTENDS:
|
|
return GetExtendsRoot()->IsOrdinalInAutoRange(aOrdinal);
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Invalid system for computing auto value.");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
void CustomCounterStyle::GetPad(PadType& aResult) {
|
|
if (!(mFlags & FLAG_PAD_INITED)) {
|
|
mFlags |= FLAG_PAD_INITED;
|
|
if (!Servo_CounterStyleRule_GetPad(mRule, &mPad.width, &mPad.symbol)) {
|
|
if (IsExtendsSystem()) {
|
|
GetExtends()->GetPad(mPad);
|
|
} else {
|
|
mPad.width = 0;
|
|
mPad.symbol.Truncate();
|
|
}
|
|
}
|
|
}
|
|
aResult = mPad;
|
|
}
|
|
|
|
/* virtual */
|
|
CounterStyle* CustomCounterStyle::GetFallback() {
|
|
if (!mFallback) {
|
|
mFallback = CounterStyleManager::GetDecimalStyle();
|
|
if (nsAtom* fallback = Servo_CounterStyleRule_GetFallback(mRule)) {
|
|
mFallback = mManager->ResolveCounterStyle(fallback);
|
|
} else if (IsExtendsSystem()) {
|
|
mFallback = GetExtends()->GetFallback();
|
|
}
|
|
}
|
|
return mFallback;
|
|
}
|
|
|
|
/* virtual */
|
|
uint8_t CustomCounterStyle::GetSpeakAs() {
|
|
if (!(mFlags & FLAG_SPEAKAS_INITED)) {
|
|
ComputeSpeakAs();
|
|
}
|
|
return mSpeakAs;
|
|
}
|
|
|
|
/* virtual */
|
|
bool CustomCounterStyle::UseNegativeSign() {
|
|
if (mSystem == NS_STYLE_COUNTER_SYSTEM_EXTENDS) {
|
|
return GetExtendsRoot()->UseNegativeSign();
|
|
}
|
|
return SystemUsesNegativeSign(mSystem);
|
|
}
|
|
|
|
/* virtual */
|
|
void CustomCounterStyle::CallFallbackStyle(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult, bool& aIsRTL) {
|
|
CounterStyle* fallback = GetFallback();
|
|
// If it recursively falls back to this counter style again,
|
|
// it will then fallback to decimal to break the loop.
|
|
mFallback = CounterStyleManager::GetDecimalStyle();
|
|
fallback->GetCounterText(aOrdinal, aWritingMode, aResult, aIsRTL);
|
|
mFallback = fallback;
|
|
}
|
|
|
|
/* virtual */
|
|
bool CustomCounterStyle::GetInitialCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult,
|
|
bool& aIsRTL) {
|
|
switch (mSystem) {
|
|
case NS_STYLE_COUNTER_SYSTEM_CYCLIC:
|
|
return GetCyclicCounterText(aOrdinal, aResult, GetSymbols());
|
|
case NS_STYLE_COUNTER_SYSTEM_FIXED: {
|
|
int32_t start = Servo_CounterStyleRule_GetFixedFirstValue(mRule);
|
|
return GetFixedCounterText(aOrdinal, aResult, start, GetSymbols());
|
|
}
|
|
case NS_STYLE_COUNTER_SYSTEM_SYMBOLIC:
|
|
return GetSymbolicCounterText(aOrdinal, aResult, GetSymbols());
|
|
case NS_STYLE_COUNTER_SYSTEM_ALPHABETIC:
|
|
return GetAlphabeticCounterText(aOrdinal, aResult, GetSymbols());
|
|
case NS_STYLE_COUNTER_SYSTEM_NUMERIC:
|
|
return GetNumericCounterText(aOrdinal, aResult, GetSymbols());
|
|
case NS_STYLE_COUNTER_SYSTEM_ADDITIVE:
|
|
return GetAdditiveCounterText(aOrdinal, aResult, GetAdditiveSymbols());
|
|
case NS_STYLE_COUNTER_SYSTEM_EXTENDS:
|
|
return GetExtendsRoot()->GetInitialCounterText(aOrdinal, aWritingMode,
|
|
aResult, aIsRTL);
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Invalid system.");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
Span<const nsString> CustomCounterStyle::GetSymbols() {
|
|
if (mSymbols.IsEmpty()) {
|
|
Servo_CounterStyleRule_GetSymbols(mRule, &mSymbols);
|
|
}
|
|
return mSymbols.AsSpan();
|
|
}
|
|
|
|
Span<const AdditiveSymbol> CustomCounterStyle::GetAdditiveSymbols() {
|
|
if (mAdditiveSymbols.IsEmpty()) {
|
|
Servo_CounterStyleRule_GetAdditiveSymbols(mRule, &mAdditiveSymbols);
|
|
}
|
|
return mAdditiveSymbols.AsSpan();
|
|
}
|
|
|
|
// This method is used to provide the computed value for 'auto'.
|
|
uint8_t CustomCounterStyle::GetSpeakAsAutoValue() {
|
|
uint8_t system = mSystem;
|
|
if (IsExtendsSystem()) {
|
|
CounterStyle* root = GetExtendsRoot();
|
|
if (!root->IsCustomStyle()) {
|
|
// It is safe to call GetSpeakAs on non-custom style.
|
|
return root->GetSpeakAs();
|
|
}
|
|
system = static_cast<CustomCounterStyle*>(root)->mSystem;
|
|
}
|
|
return GetDefaultSpeakAsForSystem(system);
|
|
}
|
|
|
|
// This method corresponds to the first stage of computation of the
|
|
// value of speak-as. It will extract the value from the rule and
|
|
// possibly recursively call itself on the extended style to figure
|
|
// out the raw value. To keep things clear, this method is designed to
|
|
// have no side effects (but functions it calls may still affect other
|
|
// fields in the style.)
|
|
void CustomCounterStyle::ComputeRawSpeakAs(uint8_t& aSpeakAs,
|
|
CounterStyle*& aSpeakAsCounter) {
|
|
NS_ASSERTION(!(mFlags & FLAG_SPEAKAS_INITED),
|
|
"ComputeRawSpeakAs is called with speak-as inited.");
|
|
|
|
auto speakAs = StyleCounterSpeakAs::None();
|
|
Servo_CounterStyleRule_GetSpeakAs(mRule, &speakAs);
|
|
switch (speakAs.tag) {
|
|
case StyleCounterSpeakAs::Tag::Auto:
|
|
aSpeakAs = GetSpeakAsAutoValue();
|
|
break;
|
|
case StyleCounterSpeakAs::Tag::Bullets:
|
|
aSpeakAs = NS_STYLE_COUNTER_SPEAKAS_BULLETS;
|
|
break;
|
|
case StyleCounterSpeakAs::Tag::Numbers:
|
|
aSpeakAs = NS_STYLE_COUNTER_SPEAKAS_NUMBERS;
|
|
break;
|
|
case StyleCounterSpeakAs::Tag::Words:
|
|
aSpeakAs = NS_STYLE_COUNTER_SPEAKAS_WORDS;
|
|
break;
|
|
case StyleCounterSpeakAs::Tag::Ident:
|
|
aSpeakAs = NS_STYLE_COUNTER_SPEAKAS_OTHER;
|
|
aSpeakAsCounter = mManager->ResolveCounterStyle(speakAs.AsIdent());
|
|
break;
|
|
case StyleCounterSpeakAs::Tag::None: {
|
|
if (!IsExtendsSystem()) {
|
|
aSpeakAs = GetSpeakAsAutoValue();
|
|
} else {
|
|
CounterStyle* extended = GetExtends();
|
|
if (!extended->IsCustomStyle()) {
|
|
// It is safe to call GetSpeakAs on non-custom style.
|
|
aSpeakAs = extended->GetSpeakAs();
|
|
} else {
|
|
CustomCounterStyle* custom =
|
|
static_cast<CustomCounterStyle*>(extended);
|
|
if (!(custom->mFlags & FLAG_SPEAKAS_INITED)) {
|
|
custom->ComputeRawSpeakAs(aSpeakAs, aSpeakAsCounter);
|
|
} else {
|
|
aSpeakAs = custom->mSpeakAs;
|
|
aSpeakAsCounter = custom->mSpeakAsCounter;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Invalid speak-as value");
|
|
}
|
|
}
|
|
|
|
// This method corresponds to the second stage of getting speak-as
|
|
// related values. It will recursively figure out the final value of
|
|
// mSpeakAs and mSpeakAsCounter. This method returns nullptr if the
|
|
// caller is in a loop, and the root counter style in the chain
|
|
// otherwise. It use the same loop detection algorithm as
|
|
// CustomCounterStyle::ComputeExtends, see comments before that
|
|
// method for more details.
|
|
CounterStyle* CustomCounterStyle::ComputeSpeakAs() {
|
|
if (mFlags & FLAG_SPEAKAS_INITED) {
|
|
if (mSpeakAs == NS_STYLE_COUNTER_SPEAKAS_OTHER) {
|
|
return mSpeakAsCounter;
|
|
}
|
|
return this;
|
|
}
|
|
|
|
if (mFlags & FLAG_SPEAKAS_VISITED) {
|
|
// loop detected
|
|
mFlags |= FLAG_SPEAKAS_LOOP;
|
|
return nullptr;
|
|
}
|
|
|
|
CounterStyle* speakAsCounter;
|
|
ComputeRawSpeakAs(mSpeakAs, speakAsCounter);
|
|
|
|
bool inLoop = false;
|
|
if (mSpeakAs != NS_STYLE_COUNTER_SPEAKAS_OTHER) {
|
|
mSpeakAsCounter = nullptr;
|
|
} else if (!speakAsCounter->IsCustomStyle()) {
|
|
mSpeakAsCounter = speakAsCounter;
|
|
} else {
|
|
mFlags |= FLAG_SPEAKAS_VISITED;
|
|
CounterStyle* target =
|
|
static_cast<CustomCounterStyle*>(speakAsCounter)->ComputeSpeakAs();
|
|
mFlags &= ~FLAG_SPEAKAS_VISITED;
|
|
|
|
if (target) {
|
|
NS_ASSERTION(!(mFlags & FLAG_SPEAKAS_LOOP),
|
|
"Invalid state for speak-as loop detecting");
|
|
mSpeakAsCounter = target;
|
|
} else {
|
|
mSpeakAs = GetSpeakAsAutoValue();
|
|
mSpeakAsCounter = nullptr;
|
|
if (mFlags & FLAG_SPEAKAS_LOOP) {
|
|
mFlags &= ~FLAG_SPEAKAS_LOOP;
|
|
} else {
|
|
inLoop = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
mFlags |= FLAG_SPEAKAS_INITED;
|
|
if (inLoop) {
|
|
return nullptr;
|
|
}
|
|
return mSpeakAsCounter ? mSpeakAsCounter : this;
|
|
}
|
|
|
|
// This method will recursively figure out mExtends in the whole chain.
|
|
// It will return nullptr if the caller is in a loop, and return this
|
|
// otherwise. To detect the loop, this method marks the style VISITED
|
|
// before the recursive call. When a VISITED style is reached again, the
|
|
// loop is detected, and flag LOOP will be marked on the first style in
|
|
// loop. mExtends of all counter styles in loop will be set to decimal
|
|
// according to the spec.
|
|
CounterStyle* CustomCounterStyle::ComputeExtends() {
|
|
if (!IsExtendsSystem() || mExtends) {
|
|
return this;
|
|
}
|
|
if (mFlags & FLAG_EXTENDS_VISITED) {
|
|
// loop detected
|
|
mFlags |= FLAG_EXTENDS_LOOP;
|
|
return nullptr;
|
|
}
|
|
|
|
nsAtom* extended = Servo_CounterStyleRule_GetExtended(mRule);
|
|
CounterStyle* nextCounter = mManager->ResolveCounterStyle(extended);
|
|
CounterStyle* target = nextCounter;
|
|
if (nextCounter->IsCustomStyle()) {
|
|
mFlags |= FLAG_EXTENDS_VISITED;
|
|
target = static_cast<CustomCounterStyle*>(nextCounter)->ComputeExtends();
|
|
mFlags &= ~FLAG_EXTENDS_VISITED;
|
|
}
|
|
|
|
if (target) {
|
|
NS_ASSERTION(!(mFlags & FLAG_EXTENDS_LOOP),
|
|
"Invalid state for extends loop detecting");
|
|
mExtends = nextCounter;
|
|
return this;
|
|
} else {
|
|
mExtends = CounterStyleManager::GetDecimalStyle();
|
|
if (mFlags & FLAG_EXTENDS_LOOP) {
|
|
mFlags &= ~FLAG_EXTENDS_LOOP;
|
|
return this;
|
|
} else {
|
|
return nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
CounterStyle* CustomCounterStyle::GetExtends() {
|
|
if (!mExtends) {
|
|
// Any extends loop will be eliminated in the method below.
|
|
ComputeExtends();
|
|
}
|
|
return mExtends;
|
|
}
|
|
|
|
CounterStyle* CustomCounterStyle::GetExtendsRoot() {
|
|
if (!mExtendsRoot) {
|
|
CounterStyle* extended = GetExtends();
|
|
mExtendsRoot = extended;
|
|
if (extended->IsCustomStyle()) {
|
|
CustomCounterStyle* custom = static_cast<CustomCounterStyle*>(extended);
|
|
if (custom->IsExtendsSystem()) {
|
|
// This will make mExtendsRoot in the whole extends chain be
|
|
// set recursively, which could save work when part of a chain
|
|
// is shared by multiple counter styles.
|
|
mExtendsRoot = custom->GetExtendsRoot();
|
|
}
|
|
}
|
|
}
|
|
return mExtendsRoot;
|
|
}
|
|
|
|
AnonymousCounterStyle::AnonymousCounterStyle(const nsAString& aContent)
|
|
: CounterStyle(NS_STYLE_LIST_STYLE_CUSTOM),
|
|
mSingleString(true),
|
|
mSymbolsType(StyleSymbolsType::Cyclic) {
|
|
mSymbols.SetCapacity(1);
|
|
mSymbols.AppendElement(aContent);
|
|
}
|
|
|
|
AnonymousCounterStyle::AnonymousCounterStyle(StyleSymbolsType aType,
|
|
nsTArray<nsString> aSymbols)
|
|
: CounterStyle(NS_STYLE_LIST_STYLE_CUSTOM),
|
|
mSingleString(false),
|
|
mSymbolsType(aType),
|
|
mSymbols(std::move(aSymbols)) {}
|
|
|
|
/* virtual */
|
|
void AnonymousCounterStyle::GetPrefix(nsAString& aResult) {
|
|
aResult.Truncate();
|
|
}
|
|
|
|
/* virtual */
|
|
void AnonymousCounterStyle::GetSuffix(nsAString& aResult) {
|
|
if (IsSingleString()) {
|
|
aResult.Truncate();
|
|
} else {
|
|
aResult = ' ';
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
bool AnonymousCounterStyle::IsBullet() {
|
|
// Only use ::-moz-list-bullet for cyclic system
|
|
return mSymbolsType == StyleSymbolsType::Cyclic;
|
|
}
|
|
|
|
/* virtual */
|
|
void AnonymousCounterStyle::GetNegative(NegativeType& aResult) {
|
|
aResult.before.AssignLiteral(u"-");
|
|
aResult.after.Truncate();
|
|
}
|
|
|
|
/* virtual */
|
|
bool AnonymousCounterStyle::IsOrdinalInRange(CounterValue aOrdinal) {
|
|
switch (mSymbolsType) {
|
|
case StyleSymbolsType::Cyclic:
|
|
case StyleSymbolsType::Numeric:
|
|
case StyleSymbolsType::Fixed:
|
|
return true;
|
|
case StyleSymbolsType::Alphabetic:
|
|
case StyleSymbolsType::Symbolic:
|
|
return aOrdinal >= 1;
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Invalid system.");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
bool AnonymousCounterStyle::IsOrdinalInAutoRange(CounterValue aOrdinal) {
|
|
return AnonymousCounterStyle::IsOrdinalInRange(aOrdinal);
|
|
}
|
|
|
|
/* virtual */
|
|
void AnonymousCounterStyle::GetPad(PadType& aResult) {
|
|
aResult.width = 0;
|
|
aResult.symbol.Truncate();
|
|
}
|
|
|
|
/* virtual */
|
|
CounterStyle* AnonymousCounterStyle::GetFallback() {
|
|
return CounterStyleManager::GetDecimalStyle();
|
|
}
|
|
|
|
uint8_t AnonymousCounterStyle::GetSystem() const {
|
|
switch (mSymbolsType) {
|
|
case StyleSymbolsType::Cyclic:
|
|
return NS_STYLE_COUNTER_SYSTEM_CYCLIC;
|
|
case StyleSymbolsType::Numeric:
|
|
return NS_STYLE_COUNTER_SYSTEM_NUMERIC;
|
|
case StyleSymbolsType::Fixed:
|
|
return NS_STYLE_COUNTER_SYSTEM_FIXED;
|
|
case StyleSymbolsType::Alphabetic:
|
|
return NS_STYLE_COUNTER_SYSTEM_ALPHABETIC;
|
|
case StyleSymbolsType::Symbolic:
|
|
return NS_STYLE_COUNTER_SYSTEM_SYMBOLIC;
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("Unknown symbols() type");
|
|
return NS_STYLE_COUNTER_SYSTEM_CYCLIC;
|
|
}
|
|
|
|
/* virtual */
|
|
uint8_t AnonymousCounterStyle::GetSpeakAs() {
|
|
return GetDefaultSpeakAsForSystem(GetSystem());
|
|
}
|
|
|
|
/* virtual */
|
|
bool AnonymousCounterStyle::UseNegativeSign() {
|
|
return SystemUsesNegativeSign(GetSystem());
|
|
}
|
|
|
|
/* virtual */
|
|
bool AnonymousCounterStyle::GetInitialCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult,
|
|
bool& aIsRTL) {
|
|
switch (mSymbolsType) {
|
|
case StyleSymbolsType::Cyclic:
|
|
return GetCyclicCounterText(aOrdinal, aResult, mSymbols);
|
|
case StyleSymbolsType::Numeric:
|
|
return GetNumericCounterText(aOrdinal, aResult, mSymbols);
|
|
case StyleSymbolsType::Fixed:
|
|
return GetFixedCounterText(aOrdinal, aResult, 1, mSymbols);
|
|
case StyleSymbolsType::Alphabetic:
|
|
return GetAlphabeticCounterText(aOrdinal, aResult, mSymbols);
|
|
case StyleSymbolsType::Symbolic:
|
|
return GetSymbolicCounterText(aOrdinal, aResult, mSymbols);
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("Invalid system.");
|
|
return false;
|
|
}
|
|
|
|
bool CounterStyle::IsDependentStyle() const {
|
|
switch (mStyle) {
|
|
// CustomCounterStyle
|
|
case NS_STYLE_LIST_STYLE_CUSTOM:
|
|
// DependentBuiltinCounterStyle
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_JAPANESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANGUL_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_KOREAN_HANJA_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_SIMP_CHINESE_FORMAL:
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_INFORMAL:
|
|
case NS_STYLE_LIST_STYLE_TRAD_CHINESE_FORMAL:
|
|
return true;
|
|
|
|
// BuiltinCounterStyle
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void CounterStyle::GetCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode, nsAString& aResult,
|
|
bool& aIsRTL) {
|
|
bool success = IsOrdinalInRange(aOrdinal);
|
|
aIsRTL = false;
|
|
|
|
if (success) {
|
|
// generate initial representation
|
|
bool useNegativeSign = UseNegativeSign();
|
|
nsAutoString initialText;
|
|
CounterValue ordinal;
|
|
if (!useNegativeSign) {
|
|
ordinal = aOrdinal;
|
|
} else {
|
|
CheckedInt<CounterValue> absolute(Abs(aOrdinal));
|
|
ordinal = absolute.isValid() ? absolute.value()
|
|
: std::numeric_limits<CounterValue>::max();
|
|
}
|
|
success = GetInitialCounterText(ordinal, aWritingMode, initialText, aIsRTL);
|
|
|
|
// add pad & negative, build the final result
|
|
if (success) {
|
|
PadType pad;
|
|
GetPad(pad);
|
|
// We have to calculate the difference here since suffix part of negative
|
|
// sign may be appended to initialText later.
|
|
int32_t diff = pad.width - unicode::CountGraphemeClusters(
|
|
initialText.Data(), initialText.Length());
|
|
aResult.Truncate();
|
|
if (useNegativeSign && aOrdinal < 0) {
|
|
NegativeType negative;
|
|
GetNegative(negative);
|
|
aResult.Append(negative.before);
|
|
// There is nothing between the suffix part of negative and initial
|
|
// representation, so we append it directly here.
|
|
initialText.Append(negative.after);
|
|
}
|
|
if (diff > 0) {
|
|
auto length = pad.symbol.Length();
|
|
if (diff > LENGTH_LIMIT || length > LENGTH_LIMIT ||
|
|
diff * length > LENGTH_LIMIT) {
|
|
success = false;
|
|
} else if (length > 0) {
|
|
for (int32_t i = 0; i < diff; ++i) {
|
|
aResult.Append(pad.symbol);
|
|
}
|
|
}
|
|
}
|
|
if (success) {
|
|
aResult.Append(initialText);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!success) {
|
|
CallFallbackStyle(aOrdinal, aWritingMode, aResult, aIsRTL);
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
void CounterStyle::GetSpokenCounterText(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult, bool& aIsBullet) {
|
|
bool isRTL; // we don't care about direction for spoken text
|
|
aIsBullet = false;
|
|
switch (GetSpeakAs()) {
|
|
case NS_STYLE_COUNTER_SPEAKAS_BULLETS:
|
|
aResult.Assign(kDiscCharacter);
|
|
aIsBullet = true;
|
|
break;
|
|
case NS_STYLE_COUNTER_SPEAKAS_NUMBERS:
|
|
DecimalToText(aOrdinal, aResult);
|
|
break;
|
|
case NS_STYLE_COUNTER_SPEAKAS_SPELL_OUT:
|
|
// we currently do not actually support 'spell-out',
|
|
// so 'words' is used instead.
|
|
case NS_STYLE_COUNTER_SPEAKAS_WORDS:
|
|
GetCounterText(aOrdinal, WritingMode(), aResult, isRTL);
|
|
break;
|
|
case NS_STYLE_COUNTER_SPEAKAS_OTHER:
|
|
// This should be processed by CustomCounterStyle
|
|
MOZ_ASSERT_UNREACHABLE("Invalid speak-as value");
|
|
break;
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unknown speak-as value");
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* virtual */
|
|
void CounterStyle::CallFallbackStyle(CounterValue aOrdinal,
|
|
WritingMode aWritingMode,
|
|
nsAString& aResult, bool& aIsRTL) {
|
|
GetFallback()->GetCounterText(aOrdinal, aWritingMode, aResult, aIsRTL);
|
|
}
|
|
|
|
CounterStyleManager::CounterStyleManager(nsPresContext* aPresContext)
|
|
: mPresContext(aPresContext) {
|
|
// Insert the static styles into cache table
|
|
mStyles.Put(nsGkAtoms::none, GetNoneStyle());
|
|
mStyles.Put(nsGkAtoms::decimal, GetDecimalStyle());
|
|
mStyles.Put(nsGkAtoms::disc, GetDiscStyle());
|
|
}
|
|
|
|
CounterStyleManager::~CounterStyleManager() {
|
|
MOZ_ASSERT(!mPresContext, "Disconnect should have been called");
|
|
}
|
|
|
|
void CounterStyleManager::DestroyCounterStyle(CounterStyle* aCounterStyle) {
|
|
if (aCounterStyle->IsCustomStyle()) {
|
|
MOZ_ASSERT(!aCounterStyle->AsAnonymous(),
|
|
"Anonymous counter styles "
|
|
"are not managed by CounterStyleManager");
|
|
static_cast<CustomCounterStyle*>(aCounterStyle)->Destroy();
|
|
} else if (aCounterStyle->IsDependentStyle()) {
|
|
static_cast<DependentBuiltinCounterStyle*>(aCounterStyle)->Destroy();
|
|
} else {
|
|
MOZ_ASSERT_UNREACHABLE("Builtin counter styles should not be destroyed");
|
|
}
|
|
}
|
|
|
|
void CounterStyleManager::Disconnect() {
|
|
CleanRetiredStyles();
|
|
for (auto iter = mStyles.Iter(); !iter.Done(); iter.Next()) {
|
|
CounterStyle* style = iter.Data();
|
|
if (style->IsDependentStyle()) {
|
|
DestroyCounterStyle(style);
|
|
}
|
|
}
|
|
mStyles.Clear();
|
|
mPresContext = nullptr;
|
|
}
|
|
|
|
CounterStyle* CounterStyleManager::ResolveCounterStyle(nsAtom* aName) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
CounterStyle* data = GetCounterStyle(aName);
|
|
if (data) {
|
|
return data;
|
|
}
|
|
|
|
// Names are compared case-sensitively here. Predefined names should
|
|
// have been lowercased by the parser.
|
|
ServoStyleSet* styleSet = mPresContext->StyleSet();
|
|
auto* rule = styleSet->CounterStyleRuleForName(aName);
|
|
if (rule) {
|
|
MOZ_ASSERT(Servo_CounterStyleRule_GetName(rule) == aName);
|
|
data = new (mPresContext) CustomCounterStyle(this, rule);
|
|
} else {
|
|
for (const BuiltinCounterStyle& item : gBuiltinStyleTable) {
|
|
if (item.GetStyleName() == aName) {
|
|
int32_t style = item.GetStyle();
|
|
data = item.IsDependentStyle()
|
|
? new (mPresContext)
|
|
DependentBuiltinCounterStyle(style, this)
|
|
: GetBuiltinStyle(style);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (!data) {
|
|
data = GetDecimalStyle();
|
|
}
|
|
mStyles.Put(aName, data);
|
|
return data;
|
|
}
|
|
|
|
/* static */
|
|
CounterStyle* CounterStyleManager::GetBuiltinStyle(int32_t aStyle) {
|
|
MOZ_ASSERT(0 <= aStyle && size_t(aStyle) < sizeof(gBuiltinStyleTable),
|
|
"Require a valid builtin style constant");
|
|
MOZ_ASSERT(!gBuiltinStyleTable[aStyle].IsDependentStyle(),
|
|
"Cannot get dependent builtin style");
|
|
// No method of BuiltinCounterStyle mutates the struct itself, so it
|
|
// should be fine to cast const away.
|
|
return const_cast<BuiltinCounterStyle*>(&gBuiltinStyleTable[aStyle]);
|
|
}
|
|
|
|
bool CounterStyleManager::NotifyRuleChanged() {
|
|
bool changed = false;
|
|
for (auto iter = mStyles.Iter(); !iter.Done(); iter.Next()) {
|
|
CounterStyle* style = iter.Data();
|
|
bool toBeUpdated = false;
|
|
bool toBeRemoved = false;
|
|
ServoStyleSet* styleSet = mPresContext->StyleSet();
|
|
auto* newRule = styleSet->CounterStyleRuleForName(iter.Key());
|
|
if (!newRule) {
|
|
if (style->IsCustomStyle()) {
|
|
toBeRemoved = true;
|
|
}
|
|
} else {
|
|
if (!style->IsCustomStyle()) {
|
|
toBeRemoved = true;
|
|
} else {
|
|
auto custom = static_cast<CustomCounterStyle*>(style);
|
|
if (custom->GetRule() != newRule) {
|
|
toBeRemoved = true;
|
|
} else {
|
|
auto generation = Servo_CounterStyleRule_GetGeneration(newRule);
|
|
if (custom->GetRuleGeneration() != generation) {
|
|
toBeUpdated = true;
|
|
custom->ResetCachedData();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
changed = changed || toBeUpdated || toBeRemoved;
|
|
if (toBeRemoved) {
|
|
if (style->IsDependentStyle()) {
|
|
// Add object to retired list so we can clean them up later.
|
|
mRetiredStyles.AppendElement(style);
|
|
}
|
|
iter.Remove();
|
|
}
|
|
}
|
|
|
|
if (changed) {
|
|
for (auto iter = mStyles.Iter(); !iter.Done(); iter.Next()) {
|
|
CounterStyle* style = iter.Data();
|
|
if (style->IsCustomStyle()) {
|
|
CustomCounterStyle* custom = static_cast<CustomCounterStyle*>(style);
|
|
custom->ResetDependentData();
|
|
}
|
|
// There is no dependent data cached in DependentBuiltinCounterStyle
|
|
// instances, so we don't need to reset their data.
|
|
}
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
void CounterStyleManager::CleanRetiredStyles() {
|
|
nsTArray<CounterStyle*> list(std::move(mRetiredStyles));
|
|
for (CounterStyle* style : list) {
|
|
DestroyCounterStyle(style);
|
|
}
|
|
}
|
|
|
|
} // namespace mozilla
|