--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/rendering/RenderListMarker.cpp Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,900 @@
+/**
+ * This file is part of the DOM implementation for KDE.
+ *
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 1999 Antti Koivisto (koivisto@kde.org)
+ * Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc.
+ * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+#include "RenderListMarker.h"
+
+#include "CachedImage.h"
+#include "CharacterNames.h"
+#include "Document.h"
+#include "GraphicsContext.h"
+#include "ListMarkerBox.h"
+#include "RenderLayer.h"
+#include "RenderListItem.h"
+#include "RenderView.h"
+
+using namespace std;
+using namespace WTF;
+using namespace Unicode;
+
+namespace WebCore {
+
+const int cMarkerPadding = 7;
+
+static String toRoman(int number, bool upper)
+{
+ // FIXME: CSS3 describes how to make this work for much larger numbers,
+ // using overbars and special characters. It also specifies the characters
+ // in the range U+2160 to U+217F instead of standard ASCII ones.
+ if (number < 1 || number > 3999)
+ return String::number(number);
+
+ const int lettersSize = 12; // big enough for three each of I, X, C, and M
+ UChar letters[lettersSize];
+
+ int length = 0;
+ const UChar ldigits[] = { 'i', 'v', 'x', 'l', 'c', 'd', 'm' };
+ const UChar udigits[] = { 'I', 'V', 'X', 'L', 'C', 'D', 'M' };
+ const UChar* digits = upper ? udigits : ldigits;
+ int d = 0;
+ do {
+ int num = number % 10;
+ if (num % 5 < 4)
+ for (int i = num % 5; i > 0; i--)
+ letters[lettersSize - ++length] = digits[d];
+ if (num >= 4 && num <= 8)
+ letters[lettersSize - ++length] = digits[d + 1];
+ if (num == 9)
+ letters[lettersSize - ++length] = digits[d + 2];
+ if (num % 5 == 4)
+ letters[lettersSize - ++length] = digits[d];
+ number /= 10;
+ d += 2;
+ } while (number);
+
+ ASSERT(length <= lettersSize);
+ return String(&letters[lettersSize - length], length);
+}
+
+static String toAlphabetic(int number, const UChar* alphabet, int alphabetSize)
+{
+ ASSERT(alphabetSize >= 10);
+
+ if (number < 1)
+ return String::number(number);
+
+ const int lettersSize = 10; // big enough for a 32-bit int, with a 10-letter alphabet
+ UChar letters[lettersSize];
+
+ --number;
+ letters[lettersSize - 1] = alphabet[number % alphabetSize];
+ int length = 1;
+ while ((number /= alphabetSize) > 0)
+ letters[lettersSize - ++length] = alphabet[number % alphabetSize - 1];
+
+ ASSERT(length <= lettersSize);
+ return String(&letters[lettersSize - length], length);
+}
+
+static int toHebrewUnder1000(int number, UChar letters[5])
+{
+ // FIXME: CSS3 mentions various refinements not implemented here.
+ // FIXME: Should take a look at Mozilla's HebrewToText function (in nsBulletFrame).
+ ASSERT(number >= 0 && number < 1000);
+ int length = 0;
+ int fourHundreds = number / 400;
+ for (int i = 0; i < fourHundreds; i++)
+ letters[length++] = 1511 + 3;
+ number %= 400;
+ if (number / 100)
+ letters[length++] = 1511 + (number / 100) - 1;
+ number %= 100;
+ if (number == 15 || number == 16) {
+ letters[length++] = 1487 + 9;
+ letters[length++] = 1487 + number - 9;
+ } else {
+ if (int tens = number / 10) {
+ static const UChar hebrewTens[9] = { 1497, 1499, 1500, 1502, 1504, 1505, 1506, 1508, 1510 };
+ letters[length++] = hebrewTens[tens - 1];
+ }
+ if (int ones = number % 10)
+ letters[length++] = 1487 + ones;
+ }
+ ASSERT(length <= 5);
+ return length;
+}
+
+static String toHebrew(int number)
+{
+ // FIXME: CSS3 mentions ways to make this work for much larger numbers.
+ if (number < 0 || number > 999999)
+ return String::number(number);
+
+ if (number == 0) {
+ static const UChar hebrewZero[3] = { 0x05D0, 0x05E4, 0x05E1 };
+ return String(hebrewZero, 3);
+ }
+
+ const int lettersSize = 11; // big enough for two 5-digit sequences plus a quote mark between
+ UChar letters[lettersSize];
+
+ int length;
+ if (number < 1000)
+ length = 0;
+ else {
+ length = toHebrewUnder1000(number / 1000, letters);
+ letters[length++] = '\'';
+ number = number % 1000;
+ }
+ length += toHebrewUnder1000(number, letters + length);
+
+ ASSERT(length <= lettersSize);
+ return String(letters, length);
+}
+
+static int toArmenianUnder10000(int number, bool upper, bool addCircumflex, UChar letters[9])
+{
+ ASSERT(number >= 0 && number < 10000);
+ int length = 0;
+
+ int lowerOffset = upper ? 0 : 0x0030;
+
+ if (int thousands = number / 1000)
+ if (thousands == 7) {
+ letters[length++] = 0x0548 + lowerOffset;
+ letters[length++] = 0x0552 + lowerOffset;
+ if (addCircumflex)
+ letters[length++] = 0x0302;
+ } else {
+ letters[length++] = (0x054C - 1 + lowerOffset) + thousands;
+ if (addCircumflex)
+ letters[length++] = 0x0302;
+ }
+
+ if (int hundreds = (number / 100) % 10) {
+ letters[length++] = (0x0543 - 1 + lowerOffset) + hundreds;
+ if (addCircumflex)
+ letters[length++] = 0x0302;
+ }
+
+ if (int tens = (number / 10) % 10) {
+ letters[length++] = (0x053A - 1 + lowerOffset) + tens;
+ if (addCircumflex)
+ letters[length++] = 0x0302;
+ }
+
+ if (int ones = number % 10) {
+ letters[length++] = (0x531 - 1 + lowerOffset) + ones;
+ if (addCircumflex)
+ letters[length++] = 0x0302;
+ }
+
+ return length;
+}
+
+static String toArmenian(int number, bool upper)
+{
+ if (number < 1 || number > 99999999)
+ return String::number(number);
+
+ const int lettersSize = 18; // twice what toArmenianUnder10000 needs
+ UChar letters[lettersSize];
+
+ int length = toArmenianUnder10000(number / 10000, upper, true, letters);
+ length += toArmenianUnder10000(number % 10000, upper, false, letters + length);
+
+ ASSERT(length <= lettersSize);
+ return String(letters, length);
+}
+
+static String toGeorgian(int number)
+{
+ if (number < 1 || number > 19999)
+ return String::number(number);
+
+ const int lettersSize = 5;
+ UChar letters[lettersSize];
+
+ int length = 0;
+
+ if (number > 9999)
+ letters[length++] = 0x10F5;
+
+ if (int thousands = (number / 1000) % 10) {
+ static const UChar georgianThousands[9] = {
+ 0x10E9, 0x10EA, 0x10EB, 0x10EC, 0x10ED, 0x10EE, 0x10F4, 0x10EF, 0x10F0
+ };
+ letters[length++] = georgianThousands[thousands - 1];
+ }
+
+ if (int hundreds = (number / 100) % 10) {
+ static const UChar georgianHundreds[9] = {
+ 0x10E0, 0x10E1, 0x10E2, 0x10F3, 0x10E4, 0x10E5, 0x10E6, 0x10E7, 0x10E8
+ };
+ letters[length++] = georgianHundreds[hundreds - 1];
+ }
+
+ if (int tens = (number / 10) % 10) {
+ static const UChar georgianTens[9] = {
+ 0x10D8, 0x10D9, 0x10DA, 0x10DB, 0x10DC, 0x10F2, 0x10DD, 0x10DE, 0x10DF
+ };
+ letters[length++] = georgianTens[tens - 1];
+ }
+
+ if (int ones = number % 10) {
+ static const UChar georgianOnes[9] = {
+ 0x10D0, 0x10D1, 0x10D2, 0x10D3, 0x10D4, 0x10D5, 0x10D6, 0x10F1, 0x10D7
+ };
+ letters[length++] = georgianOnes[ones - 1];
+ }
+
+ ASSERT(length <= lettersSize);
+ return String(letters, length);
+}
+
+// The table uses the order from the CSS3 specification:
+// first 3 group markers, then 3 digit markers, then ten digits.
+static String toCJKIdeographic(int number, const UChar table[16])
+{
+ if (number < 0)
+ return String::number(number);
+
+ enum AbstractCJKChar {
+ noChar,
+ secondGroupMarker, thirdGroupMarker, fourthGroupMarker,
+ secondDigitMarker, thirdDigitMarker, fourthDigitMarker,
+ digit0, digit1, digit2, digit3, digit4,
+ digit5, digit6, digit7, digit8, digit9
+ };
+
+ if (number == 0)
+ return String(&table[digit0 - 1], 1);
+
+ const int groupLength = 8; // 4 digits, 3 digit markers, and a group marker
+ const int bufferLength = 4 * groupLength;
+ AbstractCJKChar buffer[bufferLength] = { noChar };
+
+ for (int i = 0; i < 4; ++i) {
+ int groupValue = number % 10000;
+ number /= 10000;
+
+ // Process least-significant group first, but put it in the buffer last.
+ AbstractCJKChar* group = &buffer[(3 - i) * groupLength];
+
+ if (groupValue && i)
+ group[7] = static_cast<AbstractCJKChar>(secondGroupMarker - 1 + i);
+
+ // Put in the four digits and digit markers for any non-zero digits.
+ group[6] = static_cast<AbstractCJKChar>(digit0 + (groupValue % 10));
+ if (number != 0 || groupValue > 9) {
+ int digitValue = ((groupValue / 10) % 10);
+ group[4] = static_cast<AbstractCJKChar>(digit0 + digitValue);
+ if (digitValue)
+ group[5] = secondDigitMarker;
+ }
+ if (number != 0 || groupValue > 99) {
+ int digitValue = ((groupValue / 100) % 10);
+ group[2] = static_cast<AbstractCJKChar>(digit0 + digitValue);
+ if (digitValue)
+ group[3] = thirdDigitMarker;
+ }
+ if (number != 0 || groupValue > 999) {
+ int digitValue = groupValue / 1000;
+ group[0] = static_cast<AbstractCJKChar>(digit0 + digitValue);
+ if (digitValue)
+ group[1] = fourthDigitMarker;
+ }
+
+ // Remove the tens digit, but leave the marker, for any group that has
+ // a value of less than 20.
+ if (groupValue < 20) {
+ ASSERT(group[4] == noChar || group[4] == digit0 || group[4] == digit1);
+ group[4] = noChar;
+ }
+
+ if (number == 0)
+ break;
+ }
+
+ // Convert into characters, omitting consecutive runs of digit0 and
+ // any trailing digit0.
+ int length = 0;
+ UChar characters[bufferLength];
+ AbstractCJKChar last = noChar;
+ for (int i = 0; i < bufferLength; ++i) {
+ AbstractCJKChar a = buffer[i];
+ if (a != noChar) {
+ if (a != digit0 || last != digit0)
+ characters[length++] = table[a - 1];
+ last = a;
+ }
+ }
+ if (last == digit0)
+ --length;
+
+ return String(characters, length);
+}
+
+String listMarkerText(EListStyleType type, int value)
+{
+ switch (type) {
+ case LNONE:
+ return "";
+
+ // We use the same characters for text security.
+ // See RenderText::setInternalString.
+ case CIRCLE:
+ return String(&whiteBullet, 1);
+ case DISC:
+ return String(&bullet, 1);
+ case SQUARE:
+ // The CSS 2.1 test suite uses U+25EE BLACK MEDIUM SMALL SQUARE
+ // instead, but I think this looks better.
+ return String(&blackSquare, 1);
+
+ case LDECIMAL:
+ return String::number(value);
+ case DECIMAL_LEADING_ZERO:
+ if (value < -9 || value > 9)
+ return String::number(value);
+ if (value < 0)
+ return "-0" + String::number(-value); // -01 to -09
+ return "0" + String::number(value); // 00 to 09
+
+ case LOWER_ALPHA:
+ case LOWER_LATIN: {
+ static const UChar lowerLatinAlphabet[26] = {
+ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
+ 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'
+ };
+ return toAlphabetic(value, lowerLatinAlphabet, 26);
+ }
+ case UPPER_ALPHA:
+ case UPPER_LATIN: {
+ static const UChar upperLatinAlphabet[26] = {
+ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
+ 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
+ };
+ return toAlphabetic(value, upperLatinAlphabet, 26);
+ }
+ case LOWER_GREEK: {
+ static const UChar lowerGreekAlphabet[24] = {
+ 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 0x03B8,
+ 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0,
+ 0x03C1, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7, 0x03C8, 0x03C9
+ };
+ return toAlphabetic(value, lowerGreekAlphabet, 24);
+ }
+
+ case HIRAGANA: {
+ // FIXME: This table comes from the CSS3 draft, and is probably
+ // incorrect, given the comments in that draft.
+ static const UChar hiraganaAlphabet[48] = {
+ 0x3042, 0x3044, 0x3046, 0x3048, 0x304A, 0x304B, 0x304D, 0x304F,
+ 0x3051, 0x3053, 0x3055, 0x3057, 0x3059, 0x305B, 0x305D, 0x305F,
+ 0x3061, 0x3064, 0x3066, 0x3068, 0x306A, 0x306B, 0x306C, 0x306D,
+ 0x306E, 0x306F, 0x3072, 0x3075, 0x3078, 0x307B, 0x307E, 0x307F,
+ 0x3080, 0x3081, 0x3082, 0x3084, 0x3086, 0x3088, 0x3089, 0x308A,
+ 0x308B, 0x308C, 0x308D, 0x308F, 0x3090, 0x3091, 0x3092, 0x3093
+ };
+ return toAlphabetic(value, hiraganaAlphabet, 48);
+ }
+ case HIRAGANA_IROHA: {
+ // FIXME: This table comes from the CSS3 draft, and is probably
+ // incorrect, given the comments in that draft.
+ static const UChar hiraganaIrohaAlphabet[47] = {
+ 0x3044, 0x308D, 0x306F, 0x306B, 0x307B, 0x3078, 0x3068, 0x3061,
+ 0x308A, 0x306C, 0x308B, 0x3092, 0x308F, 0x304B, 0x3088, 0x305F,
+ 0x308C, 0x305D, 0x3064, 0x306D, 0x306A, 0x3089, 0x3080, 0x3046,
+ 0x3090, 0x306E, 0x304A, 0x304F, 0x3084, 0x307E, 0x3051, 0x3075,
+ 0x3053, 0x3048, 0x3066, 0x3042, 0x3055, 0x304D, 0x3086, 0x3081,
+ 0x307F, 0x3057, 0x3091, 0x3072, 0x3082, 0x305B, 0x3059
+ };
+ return toAlphabetic(value, hiraganaIrohaAlphabet, 47);
+ }
+ case KATAKANA: {
+ // FIXME: This table comes from the CSS3 draft, and is probably
+ // incorrect, given the comments in that draft.
+ static const UChar katakanaAlphabet[48] = {
+ 0x30A2, 0x30A4, 0x30A6, 0x30A8, 0x30AA, 0x30AB, 0x30AD, 0x30AF,
+ 0x30B1, 0x30B3, 0x30B5, 0x30B7, 0x30B9, 0x30BB, 0x30BD, 0x30BF,
+ 0x30C1, 0x30C4, 0x30C6, 0x30C8, 0x30CA, 0x30CB, 0x30CC, 0x30CD,
+ 0x30CE, 0x30CF, 0x30D2, 0x30D5, 0x30D8, 0x30DB, 0x30DE, 0x30DF,
+ 0x30E0, 0x30E1, 0x30E2, 0x30E4, 0x30E6, 0x30E8, 0x30E9, 0x30EA,
+ 0x30EB, 0x30EC, 0x30ED, 0x30EF, 0x30F0, 0x30F1, 0x30F2, 0x30F3
+ };
+ return toAlphabetic(value, katakanaAlphabet, 48);
+ }
+ case KATAKANA_IROHA: {
+ // FIXME: This table comes from the CSS3 draft, and is probably
+ // incorrect, given the comments in that draft.
+ static const UChar katakanaIrohaAlphabet[47] = {
+ 0x30A4, 0x30ED, 0x30CF, 0x30CB, 0x30DB, 0x30D8, 0x30C8, 0x30C1,
+ 0x30EA, 0x30CC, 0x30EB, 0x30F2, 0x30EF, 0x30AB, 0x30E8, 0x30BF,
+ 0x30EC, 0x30BD, 0x30C4, 0x30CD, 0x30CA, 0x30E9, 0x30E0, 0x30A6,
+ 0x30F0, 0x30CE, 0x30AA, 0x30AF, 0x30E4, 0x30DE, 0x30B1, 0x30D5,
+ 0x30B3, 0x30A8, 0x30C6, 0x30A2, 0x30B5, 0x30AD, 0x30E6, 0x30E1,
+ 0x30DF, 0x30B7, 0x30F1, 0x30D2, 0x30E2, 0x30BB, 0x30B9
+ };
+ return toAlphabetic(value, katakanaIrohaAlphabet, 47);
+ }
+
+ case CJK_IDEOGRAPHIC: {
+ static const UChar traditionalChineseInformalTable[16] = {
+ 0x842C, 0x5104, 0x5146,
+ 0x5341, 0x767E, 0x5343,
+ 0x96F6, 0x4E00, 0x4E8C, 0x4E09, 0x56DB,
+ 0x4E94, 0x516D, 0x4E03, 0x516B, 0x4E5D
+ };
+ return toCJKIdeographic(value, traditionalChineseInformalTable);
+ }
+
+ case LOWER_ROMAN:
+ return toRoman(value, false);
+ case UPPER_ROMAN:
+ return toRoman(value, true);
+
+ case ARMENIAN:
+ // CSS3 says "armenian" means "lower-armenian".
+ // But the CSS2.1 test suite contains uppercase test results for "armenian",
+ // so we'll match the test suite.
+ return toArmenian(value, true);
+ case GEORGIAN:
+ return toGeorgian(value);
+ case HEBREW:
+ return toHebrew(value);
+ }
+
+ ASSERT_NOT_REACHED();
+ return "";
+}
+
+RenderListMarker::RenderListMarker(RenderListItem* item)
+ : RenderBox(item->document())
+ , m_image(0)
+ , m_listItem(item)
+ , m_selectionState(SelectionNone)
+{
+ // init RenderObject attributes
+ setInline(true); // our object is Inline
+ setReplaced(true); // pretend to be replaced
+}
+
+RenderListMarker::~RenderListMarker()
+{
+ if (m_image)
+ m_image->deref(this);
+}
+
+void RenderListMarker::setStyle(RenderStyle* s)
+{
+ if (style() && (s->listStylePosition() != style()->listStylePosition() || s->listStyleType() != style()->listStyleType()))
+ setNeedsLayoutAndPrefWidthsRecalc();
+
+ RenderBox::setStyle(s);
+
+ if (m_image != style()->listStyleImage()) {
+ if (m_image)
+ m_image->deref(this);
+ m_image = style()->listStyleImage();
+ if (m_image)
+ m_image->ref(this);
+ }
+}
+
+InlineBox* RenderListMarker::createInlineBox(bool, bool isRootLineBox, bool)
+{
+ ASSERT(!isRootLineBox);
+ ListMarkerBox* box = new (renderArena()) ListMarkerBox(this);
+ m_inlineBoxWrapper = box;
+ return box;
+}
+
+bool RenderListMarker::isImage() const
+{
+ return m_image && !m_image->errorOccurred();
+}
+
+void RenderListMarker::paint(PaintInfo& paintInfo, int tx, int ty)
+{
+ if (paintInfo.phase != PaintPhaseForeground)
+ return;
+
+ if (style()->visibility() != VISIBLE)
+ return;
+
+ IntRect marker = getRelativeMarkerRect();
+ marker.move(tx, ty);
+
+ IntRect box(tx + m_x, ty + m_y, m_width, m_height);
+
+ if (box.y() > paintInfo.rect.bottom() || box.y() + box.height() < paintInfo.rect.y())
+ return;
+
+ if (hasBoxDecorations())
+ paintBoxDecorations(paintInfo, box.x(), box.y());
+
+ GraphicsContext* context = paintInfo.context;
+ context->setFont(style()->font());
+
+ if (isImage()) {
+#if PLATFORM(MAC)
+ if (style()->highlight() != nullAtom && !paintInfo.context->paintingDisabled())
+ paintCustomHighlight(tx, ty, style()->highlight(), true);
+#endif
+ context->drawImage(m_image->image(), marker.location());
+ if (selectionState() != SelectionNone)
+ context->fillRect(selectionRect(), selectionBackgroundColor());
+ return;
+ }
+
+#if PLATFORM(MAC)
+ // FIXME: paint gap between marker and list item proper
+ if (style()->highlight() != nullAtom && !paintInfo.context->paintingDisabled())
+ paintCustomHighlight(tx, ty, style()->highlight(), true);
+#endif
+
+ if (selectionState() != SelectionNone)
+ context->fillRect(selectionRect(), selectionBackgroundColor());
+
+ const Color color(style()->color());
+ context->setStrokeColor(color);
+ context->setStrokeStyle(SolidStroke);
+ context->setStrokeThickness(1.0f);
+ context->setFillColor(color);
+
+ switch (style()->listStyleType()) {
+ case DISC:
+ context->drawEllipse(marker);
+ return;
+ case CIRCLE:
+ context->setFillColor(Color::transparent);
+ context->drawEllipse(marker);
+ return;
+ case SQUARE:
+ context->drawRect(marker);
+ return;
+ case LNONE:
+ return;
+ case ARMENIAN:
+ case CJK_IDEOGRAPHIC:
+ case DECIMAL_LEADING_ZERO:
+ case GEORGIAN:
+ case HEBREW:
+ case HIRAGANA:
+ case HIRAGANA_IROHA:
+ case KATAKANA:
+ case KATAKANA_IROHA:
+ case LDECIMAL:
+ case LOWER_ALPHA:
+ case LOWER_GREEK:
+ case LOWER_LATIN:
+ case LOWER_ROMAN:
+ case UPPER_ALPHA:
+ case UPPER_LATIN:
+ case UPPER_ROMAN:
+ break;
+ }
+ if (m_text.isEmpty())
+ return;
+
+ TextRun textRun(m_text);
+
+ // Text is not arbitrary. We can judge whether it's RTL from the first character,
+ // and we only need to handle the direction RightToLeft for now.
+ bool textNeedsReversing = direction(m_text[0]) == RightToLeft;
+ Vector<UChar> reversedText;
+ if (textNeedsReversing) {
+ int length = m_text.length();
+ reversedText.resize(length);
+ for (int i = 0; i < length; ++i)
+ reversedText[length - i - 1] = m_text[i];
+ textRun = TextRun(reversedText.data(), length);
+ }
+
+ const Font& font = style()->font();
+ if (style()->direction() == LTR) {
+ int width = font.width(textRun);
+ context->drawText(textRun, marker.location());
+ const UChar periodSpace[2] = { '.', ' ' };
+ context->drawText(TextRun(periodSpace, 2), marker.location() + IntSize(width, 0));
+ } else {
+ const UChar spacePeriod[2] = { ' ', '.' };
+ TextRun spacePeriodRun(spacePeriod, 2);
+ int width = font.width(spacePeriodRun);
+ context->drawText(spacePeriodRun, marker.location());
+ context->drawText(textRun, marker.location() + IntSize(width, 0));
+ }
+}
+
+void RenderListMarker::layout()
+{
+ ASSERT(needsLayout());
+ ASSERT(!prefWidthsDirty());
+
+ if (isImage()) {
+ m_width = m_image->image()->width();
+ m_height = m_image->image()->height();
+ } else {
+ m_width = minPrefWidth();
+ m_height = style()->font().height();
+ }
+
+ m_marginLeft = m_marginRight = 0;
+
+ Length leftMargin = style()->marginLeft();
+ Length rightMargin = style()->marginRight();
+ if (leftMargin.isFixed())
+ m_marginLeft = leftMargin.value();
+ if (rightMargin.isFixed())
+ m_marginRight = rightMargin.value();
+
+ setNeedsLayout(false);
+}
+
+void RenderListMarker::imageChanged(CachedImage* o)
+{
+ // A list marker can't have a background or border image, so no need to call the base class method.
+ if (o != m_image)
+ return;
+
+ if (m_width != m_image->imageSize().width() || m_height != m_image->imageSize().height() || m_image->errorOccurred())
+ setNeedsLayoutAndPrefWidthsRecalc();
+ else
+ repaint();
+}
+
+void RenderListMarker::calcPrefWidths()
+{
+ ASSERT(prefWidthsDirty());
+
+ m_text = "";
+
+ if (isImage()) {
+ m_minPrefWidth = m_maxPrefWidth = m_image->image()->width();
+ setPrefWidthsDirty(false);
+ updateMargins();
+ return;
+ }
+
+ const Font& font = style()->font();
+
+ int width = 0;
+ EListStyleType type = style()->listStyleType();
+ switch (type) {
+ case LNONE:
+ break;
+ case CIRCLE:
+ case DISC:
+ case SQUARE:
+ m_text = listMarkerText(type, 0); // value is ignored for these types
+ width = (font.ascent() * 2 / 3 + 1) / 2 + 2;
+ break;
+ case ARMENIAN:
+ case CJK_IDEOGRAPHIC:
+ case DECIMAL_LEADING_ZERO:
+ case GEORGIAN:
+ case HEBREW:
+ case HIRAGANA:
+ case HIRAGANA_IROHA:
+ case KATAKANA:
+ case KATAKANA_IROHA:
+ case LDECIMAL:
+ case LOWER_ALPHA:
+ case LOWER_GREEK:
+ case LOWER_LATIN:
+ case LOWER_ROMAN:
+ case UPPER_ALPHA:
+ case UPPER_LATIN:
+ case UPPER_ROMAN:
+ m_text = listMarkerText(type, m_listItem->value());
+ if (m_text.isEmpty())
+ width = 0;
+ else {
+ int itemWidth = font.width(m_text);
+ const UChar periodSpace[2] = { '.', ' ' };
+ int periodSpaceWidth = font.width(TextRun(periodSpace, 2));
+ width = itemWidth + periodSpaceWidth;
+ }
+ break;
+ }
+
+ m_minPrefWidth = width;
+ m_maxPrefWidth = width;
+
+ setPrefWidthsDirty(false);
+
+ updateMargins();
+}
+
+void RenderListMarker::updateMargins()
+{
+ const Font& font = style()->font();
+
+ int marginLeft = 0;
+ int marginRight = 0;
+
+ if (isInside()) {
+ if (isImage()) {
+ if (style()->direction() == LTR)
+ marginRight = cMarkerPadding;
+ else
+ marginLeft = cMarkerPadding;
+ } else switch (style()->listStyleType()) {
+ case DISC:
+ case CIRCLE:
+ case SQUARE:
+ if (style()->direction() == LTR) {
+ marginLeft = -1;
+ marginRight = font.ascent() - minPrefWidth() + 1;
+ } else {
+ marginLeft = font.ascent() - minPrefWidth() + 1;
+ marginRight = -1;
+ }
+ break;
+ default:
+ break;
+ }
+ } else {
+ if (style()->direction() == LTR) {
+ if (isImage())
+ marginLeft = -minPrefWidth() - cMarkerPadding;
+ else {
+ int offset = font.ascent() * 2 / 3;
+ switch (style()->listStyleType()) {
+ case DISC:
+ case CIRCLE:
+ case SQUARE:
+ marginLeft = -offset - cMarkerPadding - 1;
+ break;
+ case LNONE:
+ break;
+ default:
+ marginLeft = m_text.isEmpty() ? 0 : -minPrefWidth() - offset / 2;
+ }
+ }
+ } else {
+ if (isImage())
+ marginLeft = cMarkerPadding;
+ else {
+ int offset = font.ascent() * 2 / 3;
+ switch (style()->listStyleType()) {
+ case DISC:
+ case CIRCLE:
+ case SQUARE:
+ marginLeft = offset + cMarkerPadding + 1 - minPrefWidth();
+ break;
+ case LNONE:
+ break;
+ default:
+ marginLeft = m_text.isEmpty() ? 0 : offset / 2;
+ }
+ }
+ }
+ marginRight = -marginLeft - minPrefWidth();
+ }
+
+ style()->setMarginLeft(Length(marginLeft, Fixed));
+ style()->setMarginRight(Length(marginRight, Fixed));
+}
+
+short RenderListMarker::lineHeight(bool, bool) const
+{
+ if (!isImage())
+ return m_listItem->lineHeight(false, true);
+ return height();
+}
+
+short RenderListMarker::baselinePosition(bool, bool) const
+{
+ if (!isImage()) {
+ const Font& font = style()->font();
+ return font.ascent() + (lineHeight(false) - font.height())/2;
+ }
+ return height();
+}
+
+bool RenderListMarker::isInside() const
+{
+ return m_listItem->notInList() || style()->listStylePosition() == INSIDE;
+}
+
+IntRect RenderListMarker::getRelativeMarkerRect()
+{
+ if (isImage())
+ return IntRect(m_x, m_y, m_image->imageSize().width(), m_image->imageSize().height());
+
+ switch (style()->listStyleType()) {
+ case DISC:
+ case CIRCLE:
+ case SQUARE: {
+ // FIXME: Are these particular rounding rules necessary?
+ const Font& font = style()->font();
+ int ascent = font.ascent();
+ int bulletWidth = (ascent * 2 / 3 + 1) / 2;
+ return IntRect(m_x + 1, m_y + 3 * (ascent - ascent * 2 / 3) / 2, bulletWidth, bulletWidth);
+ }
+ case LNONE:
+ return IntRect();
+ case ARMENIAN:
+ case CJK_IDEOGRAPHIC:
+ case DECIMAL_LEADING_ZERO:
+ case GEORGIAN:
+ case HEBREW:
+ case HIRAGANA:
+ case HIRAGANA_IROHA:
+ case KATAKANA:
+ case KATAKANA_IROHA:
+ case LDECIMAL:
+ case LOWER_ALPHA:
+ case LOWER_GREEK:
+ case LOWER_LATIN:
+ case LOWER_ROMAN:
+ case UPPER_ALPHA:
+ case UPPER_LATIN:
+ case UPPER_ROMAN:
+ if (m_text.isEmpty())
+ return IntRect();
+ const Font& font = style()->font();
+ int itemWidth = font.width(m_text);
+ const UChar periodSpace[2] = { '.', ' ' };
+ int periodSpaceWidth = font.width(TextRun(periodSpace, 2));
+ return IntRect(m_x, m_y + font.ascent(), itemWidth + periodSpaceWidth, font.height());
+ }
+
+ return IntRect();
+}
+
+void RenderListMarker::setSelectionState(SelectionState state)
+{
+ m_selectionState = state;
+ if (InlineBox* box = inlineBoxWrapper())
+ if (RootInlineBox* root = box->root())
+ root->setHasSelectedChildren(state != SelectionNone);
+ containingBlock()->setSelectionState(state);
+}
+
+IntRect RenderListMarker::selectionRect(bool clipToVisibleContent)
+{
+ ASSERT(!needsLayout());
+
+ if (selectionState() == SelectionNone || !inlineBoxWrapper())
+ return IntRect();
+
+ RootInlineBox* root = inlineBoxWrapper()->root();
+ IntRect rect(0, root->selectionTop() - yPos(), width(), root->selectionHeight());
+
+ if (clipToVisibleContent)
+ computeAbsoluteRepaintRect(rect);
+ else {
+ int absx, absy;
+ absolutePosition(absx, absy);
+ rect.move(absx, absy);
+ }
+
+ return rect;
+}
+
+} // namespace WebCore