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1745 lines
43 KiB
1745 lines
43 KiB
/*
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* Copyright 2009 John-Mark Bell <jmb@netsurf-browser.org>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <strings.h>
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#include "utils/nsoption.h"
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#include "utils/corestrings.h"
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#include "utils/log.h"
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#include "utils/nsurl.h"
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#include "utils/utils.h"
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#include "css/hints.h"
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#include "css/select.h"
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#define LOG_STATS
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#undef LOG_STATS
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/******************************************************************************
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* Utility functions *
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******************************************************************************/
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/**
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* Determine if a given character is whitespace
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*
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* \param c Character to consider
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* \return true if character is whitespace, false otherwise
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*/
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static bool isWhitespace(char c)
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{
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return c == ' ' || c == '\t' || c == '\f' || c == '\r' || c == '\n';
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}
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/**
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* Determine if a given character is a valid hex digit
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*
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* \param c Character to consider
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* \return true if character is a valid hex digit, false otherwise
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*/
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static bool isHex(char c)
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{
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return ('0' <= c && c <= '9') ||
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('A' <= (c & ~0x20) && (c & ~0x20) <= 'F');
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}
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/**
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* Convert a character representing a hex digit to the corresponding hex value
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*
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* \param c Character to convert
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* \return Hex value represented by character
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*
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* \note This function assumes an ASCII-compatible character set
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*/
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static uint8_t charToHex(char c)
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{
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/* 0-9 */
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c -= '0';
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/* A-F */
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if (c > 9)
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c -= 'A' - '9' - 1;
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/* a-f */
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if (c > 15)
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c -= 'a' - 'A';
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return c;
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}
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/******************************************************************************
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* Common parsing functions *
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******************************************************************************/
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/**
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* Parse a number string
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*
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* \param data Data to parse (NUL-terminated)
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* \param maybe_negative Negative numbers permitted
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* \param real Floating point numbers permitted
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* \param value Pointer to location to receive numeric value
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* \param consumed Pointer to location to receive number of input
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* bytes consumed
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* \return true on success, false on invalid input
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*/
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static bool parse_number(const char *data, bool maybe_negative, bool real,
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css_fixed *value, size_t *consumed)
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{
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size_t len;
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const uint8_t *ptr;
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int32_t intpart = 0;
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int32_t fracpart = 0;
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int32_t pwr = 1;
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int sign = 1;
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*consumed = 0;
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len = strlen(data);
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ptr = (const uint8_t *) data;
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if (len == 0)
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return false;
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/* Skip leading whitespace */
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while (len > 0 && isWhitespace(ptr[0])) {
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len--;
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ptr++;
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}
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if (len == 0)
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return false;
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/* Extract sign, if any */
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if (ptr[0] == '+') {
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len--;
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ptr++;
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} else if (ptr[0] == '-' && maybe_negative) {
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sign = -1;
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len--;
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ptr++;
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}
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if (len == 0)
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return false;
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/* Must have a digit [0,9] */
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if ('0' > ptr[0] || ptr[0] > '9')
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return false;
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/* Now extract intpart, assuming base 10 */
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while (len > 0) {
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/* Stop on first non-digit */
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if (ptr[0] < '0' || '9' < ptr[0])
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break;
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/* Prevent overflow of 'intpart'; proper clamping below */
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if (intpart < (1 << 22)) {
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intpart *= 10;
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intpart += ptr[0] - '0';
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}
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ptr++;
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len--;
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}
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/* And fracpart, again, assuming base 10 */
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if (real && len > 1 && ptr[0] == '.' &&
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('0' <= ptr[1] && ptr[1] <= '9')) {
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ptr++;
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len--;
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while (len > 0) {
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if (ptr[0] < '0' || '9' < ptr[0])
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break;
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if (pwr < 1000000) {
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pwr *= 10;
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fracpart *= 10;
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fracpart += ptr[0] - '0';
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}
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ptr++;
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len--;
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}
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fracpart = ((1 << 10) * fracpart + pwr/2) / pwr;
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if (fracpart >= (1 << 10)) {
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intpart++;
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fracpart &= (1 << 10) - 1;
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}
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}
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if (sign > 0) {
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/* If the result is larger than we can represent,
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* then clamp to the maximum value we can store. */
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if (intpart >= (1 << 21)) {
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intpart = (1 << 21) - 1;
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fracpart = (1 << 10) - 1;
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}
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} else {
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/* If the negated result is smaller than we can represent
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* then clamp to the minimum value we can store. */
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if (intpart >= (1 << 21)) {
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intpart = -(1 << 21);
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fracpart = 0;
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} else {
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intpart = -intpart;
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if (fracpart) {
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fracpart = (1 << 10) - fracpart;
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intpart--;
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}
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}
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}
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*value = (intpart << 10) | fracpart;
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*consumed = ptr - (const uint8_t *) data;
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return true;
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}
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/**
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* Parse a dimension string
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*
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* \param data Data to parse (NUL-terminated)
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* \param strict Whether to enforce strict parsing rules
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* \param length Pointer to location to receive dimension's length
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* \param unit Pointer to location to receive dimension's unit
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* \return true on success, false on invalid input
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*/
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static bool parse_dimension(const char *data, bool strict, css_fixed *length,
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css_unit *unit)
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{
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size_t len;
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size_t read;
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css_fixed value;
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len = strlen(data);
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if (parse_number(data, false, true, &value, &read) == false)
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return false;
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if (strict && value < INTTOFIX(1))
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return false;
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*length = value;
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if (len > read && data[read] == '%')
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*unit = CSS_UNIT_PCT;
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else
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*unit = CSS_UNIT_PX;
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return true;
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}
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/**
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* Mapping of colour name to CSS color
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*/
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struct colour_map {
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const char *name;
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css_color color;
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};
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/**
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* Name comparator for named colour matching
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*
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* \param a Name to match
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* \param b Colour map entry to consider
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* \return 0 on match,
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* < 0 if a < b,
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* > 0 if b > a.
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*/
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static int cmp_colour_name(const void *a, const void *b)
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{
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const char *aa = a;
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const struct colour_map *bb = b;
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return strcasecmp(aa, bb->name);
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}
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/**
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* Parse a named colour
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*
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* \param name Name to parse
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* \param result Pointer to location to receive css_color
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* \return true on success, false on invalid input
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*/
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static bool parse_named_colour(const char *name, css_color *result)
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{
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static const struct colour_map named_colours[] = {
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{ "aliceblue", 0xfff0f8ff },
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{ "antiquewhite", 0xfffaebd7 },
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{ "aqua", 0xff00ffff },
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{ "aquamarine", 0xff7fffd4 },
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{ "azure", 0xfff0ffff },
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{ "beige", 0xfff5f5dc },
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{ "bisque", 0xffffe4c4 },
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{ "black", 0xff000000 },
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{ "blanchedalmond", 0xffffebcd },
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{ "blue", 0xff0000ff },
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{ "blueviolet", 0xff8a2be2 },
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{ "brown", 0xffa52a2a },
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{ "burlywood", 0xffdeb887 },
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{ "cadetblue", 0xff5f9ea0 },
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{ "chartreuse", 0xff7fff00 },
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{ "chocolate", 0xffd2691e },
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{ "coral", 0xffff7f50 },
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{ "cornflowerblue", 0xff6495ed },
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{ "cornsilk", 0xfffff8dc },
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{ "crimson", 0xffdc143c },
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{ "cyan", 0xff00ffff },
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{ "darkblue", 0xff00008b },
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{ "darkcyan", 0xff008b8b },
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{ "darkgoldenrod", 0xffb8860b },
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{ "darkgray", 0xffa9a9a9 },
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{ "darkgreen", 0xff006400 },
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{ "darkgrey", 0xffa9a9a9 },
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{ "darkkhaki", 0xffbdb76b },
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{ "darkmagenta", 0xff8b008b },
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{ "darkolivegreen", 0xff556b2f },
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{ "darkorange", 0xffff8c00 },
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{ "darkorchid", 0xff9932cc },
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{ "darkred", 0xff8b0000 },
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{ "darksalmon", 0xffe9967a },
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{ "darkseagreen", 0xff8fbc8f },
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{ "darkslateblue", 0xff483d8b },
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{ "darkslategray", 0xff2f4f4f },
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{ "darkslategrey", 0xff2f4f4f },
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{ "darkturquoise", 0xff00ced1 },
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{ "darkviolet", 0xff9400d3 },
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{ "deeppink", 0xffff1493 },
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{ "deepskyblue", 0xff00bfff },
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{ "dimgray", 0xff696969 },
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{ "dimgrey", 0xff696969 },
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{ "dodgerblue", 0xff1e90ff },
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{ "feldspar", 0xffd19275 },
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{ "firebrick", 0xffb22222 },
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{ "floralwhite", 0xfffffaf0 },
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{ "forestgreen", 0xff228b22 },
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{ "fuchsia", 0xffff00ff },
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{ "gainsboro", 0xffdcdcdc },
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{ "ghostwhite", 0xfff8f8ff },
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{ "gold", 0xffffd700 },
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{ "goldenrod", 0xffdaa520 },
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{ "gray", 0xff808080 },
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{ "green", 0xff008000 },
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{ "greenyellow", 0xffadff2f },
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{ "grey", 0xff808080 },
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{ "honeydew", 0xfff0fff0 },
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{ "hotpink", 0xffff69b4 },
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{ "indianred", 0xffcd5c5c },
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{ "indigo", 0xff4b0082 },
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{ "ivory", 0xfffffff0 },
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{ "khaki", 0xfff0e68c },
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{ "lavender", 0xffe6e6fa },
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{ "lavenderblush", 0xfffff0f5 },
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{ "lawngreen", 0xff7cfc00 },
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{ "lemonchiffon", 0xfffffacd },
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{ "lightblue", 0xffadd8e6 },
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{ "lightcoral", 0xfff08080 },
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{ "lightcyan", 0xffe0ffff },
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{ "lightgoldenrodyellow", 0xfffafad2 },
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{ "lightgray", 0xffd3d3d3 },
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{ "lightgreen", 0xff90ee90 },
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{ "lightgrey", 0xffd3d3d3 },
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{ "lightpink", 0xffffb6c1 },
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{ "lightsalmon", 0xffffa07a },
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{ "lightseagreen", 0xff20b2aa },
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{ "lightskyblue", 0xff87cefa },
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{ "lightslateblue", 0xff8470ff },
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{ "lightslategray", 0xff778899 },
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{ "lightslategrey", 0xff778899 },
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{ "lightsteelblue", 0xffb0c4de },
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{ "lightyellow", 0xffffffe0 },
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{ "lime", 0xff00ff00 },
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{ "limegreen", 0xff32cd32 },
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{ "linen", 0xfffaf0e6 },
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{ "magenta", 0xffff00ff },
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{ "maroon", 0xff800000 },
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{ "mediumaquamarine", 0xff66cdaa },
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{ "mediumblue", 0xff0000cd },
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{ "mediumorchid", 0xffba55d3 },
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{ "mediumpurple", 0xff9370db },
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{ "mediumseagreen", 0xff3cb371 },
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{ "mediumslateblue", 0xff7b68ee },
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{ "mediumspringgreen", 0xff00fa9a },
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{ "mediumturquoise", 0xff48d1cc },
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{ "mediumvioletred", 0xffc71585 },
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{ "midnightblue", 0xff191970 },
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{ "mintcream", 0xfff5fffa },
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{ "mistyrose", 0xffffe4e1 },
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{ "moccasin", 0xffffe4b5 },
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{ "navajowhite", 0xffffdead },
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{ "navy", 0xff000080 },
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{ "oldlace", 0xfffdf5e6 },
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{ "olive", 0xff808000 },
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{ "olivedrab", 0xff6b8e23 },
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{ "orange", 0xffffa500 },
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{ "orangered", 0xffff4500 },
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{ "orchid", 0xffda70d6 },
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{ "palegoldenrod", 0xffeee8aa },
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{ "palegreen", 0xff98fb98 },
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{ "paleturquoise", 0xffafeeee },
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{ "palevioletred", 0xffdb7093 },
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{ "papayawhip", 0xffffefd5 },
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{ "peachpuff", 0xffffdab9 },
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{ "peru", 0xffcd853f },
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{ "pink", 0xffffc0cb },
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{ "plum", 0xffdda0dd },
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{ "powderblue", 0xffb0e0e6 },
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{ "purple", 0xff800080 },
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{ "red", 0xffff0000 },
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{ "rosybrown", 0xffbc8f8f },
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{ "royalblue", 0xff4169e1 },
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{ "saddlebrown", 0xff8b4513 },
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{ "salmon", 0xfffa8072 },
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{ "sandybrown", 0xfff4a460 },
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{ "seagreen", 0xff2e8b57 },
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{ "seashell", 0xfffff5ee },
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{ "sienna", 0xffa0522d },
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{ "silver", 0xffc0c0c0 },
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{ "skyblue", 0xff87ceeb },
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{ "slateblue", 0xff6a5acd },
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{ "slategray", 0xff708090 },
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{ "slategrey", 0xff708090 },
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{ "snow", 0xfffffafa },
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{ "springgreen", 0xff00ff7f },
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{ "steelblue", 0xff4682b4 },
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{ "tan", 0xffd2b48c },
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{ "teal", 0xff008080 },
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{ "thistle", 0xffd8bfd8 },
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{ "tomato", 0xffff6347 },
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{ "turquoise", 0xff40e0d0 },
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{ "violet", 0xffee82ee },
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{ "violetred", 0xffd02090 },
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{ "wheat", 0xfff5deb3 },
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{ "white", 0xffffffff },
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{ "whitesmoke", 0xfff5f5f5 },
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{ "yellow", 0xffffff00 },
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{ "yellowgreen", 0xff9acd32 }
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};
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const struct colour_map *entry;
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entry = bsearch(name, named_colours,
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sizeof(named_colours) / sizeof(named_colours[0]),
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sizeof(named_colours[0]),
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cmp_colour_name);
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if (entry != NULL)
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*result = entry->color;
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return entry != NULL;
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}
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|
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/* exported interface documented in content/handlers/css/hints.h */
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bool nscss_parse_colour(const char *data, css_color *result)
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{
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size_t len = strlen(data);
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uint8_t r, g, b;
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|
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/* 2 */
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if (len == 0)
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return false;
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|
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/* 3 */
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if (len == SLEN("transparent") && strcasecmp(data, "transparent") == 0)
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return false;
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|
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/* 4 */
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if (parse_named_colour(data, result))
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return true;
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|
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/** \todo Implement HTML5's utterly insane legacy colour parsing */
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|
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if (data[0] == '#') {
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data++;
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len--;
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}
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if (len == 3 && isHex(data[0]) && isHex(data[1]) && isHex(data[2])) {
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r = charToHex(data[0]);
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g = charToHex(data[1]);
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b = charToHex(data[2]);
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r |= (r << 4);
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g |= (g << 4);
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b |= (b << 4);
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*result = (0xff << 24) | (r << 16) | (g << 8) | b;
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return true;
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} else if (len == 6 && isHex(data[0]) && isHex(data[1]) &&
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isHex(data[2]) && isHex(data[3]) && isHex(data[4]) &&
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isHex(data[5])) {
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r = (charToHex(data[0]) << 4) | charToHex(data[1]);
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g = (charToHex(data[2]) << 4) | charToHex(data[3]);
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b = (charToHex(data[4]) << 4) | charToHex(data[5]);
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*result = (0xff << 24) | (r << 16) | (g << 8) | b;
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return true;
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}
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|
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return false;
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}
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|
|
|
/**
|
|
* Parse a font \@size attribute
|
|
*
|
|
* \param size Data to parse (NUL-terminated)
|
|
* \param val Pointer to location to receive enum value
|
|
* \param len Pointer to location to receive length
|
|
* \param unit Pointer to location to receive unit
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|
* \return True on success, false on failure
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|
*/
|
|
static bool parse_font_size(const char *size, uint8_t *val,
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|
css_fixed *len, css_unit *unit)
|
|
{
|
|
static const uint8_t size_map[] = {
|
|
CSS_FONT_SIZE_XX_SMALL,
|
|
CSS_FONT_SIZE_SMALL,
|
|
CSS_FONT_SIZE_MEDIUM,
|
|
CSS_FONT_SIZE_LARGE,
|
|
CSS_FONT_SIZE_X_LARGE,
|
|
CSS_FONT_SIZE_XX_LARGE,
|
|
CSS_FONT_SIZE_DIMENSION /* xxx-large (see below) */
|
|
};
|
|
|
|
const char *p = size;
|
|
char mode;
|
|
int value = 0;
|
|
|
|
/* Skip whitespace */
|
|
while (*p != '\0' && isWhitespace(*p))
|
|
p++;
|
|
|
|
mode = *p;
|
|
|
|
/* Skip +/- */
|
|
if (mode == '+' || mode == '-')
|
|
p++;
|
|
|
|
/* Need at least one digit */
|
|
if (*p < '0' || *p > '9') {
|
|
return false;
|
|
}
|
|
|
|
/* Consume digits, computing value */
|
|
while ('0' <= *p && *p <= '9') {
|
|
value = value * 10 + (*p - '0');
|
|
p++;
|
|
}
|
|
|
|
/* Resolve relative sizes */
|
|
if (mode == '+')
|
|
value += 3;
|
|
else if (mode == '-')
|
|
value = 3 - value;
|
|
|
|
/* Clamp to range [1,7] */
|
|
if (value < 1)
|
|
value = 1;
|
|
else if (value > 7)
|
|
value = 7;
|
|
|
|
if (value == 7) {
|
|
/* Manufacture xxx-large */
|
|
*len = FDIV(FMUL(INTTOFIX(3), INTTOFIX(nsoption_int(font_size))),
|
|
F_10);
|
|
} else {
|
|
/* Len is irrelevant */
|
|
*len = 0;
|
|
}
|
|
|
|
*unit = CSS_UNIT_PT;
|
|
*val = size_map[value - 1];
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* Hint context management *
|
|
******************************************************************************/
|
|
|
|
#define MAX_HINTS_PER_ELEMENT 32
|
|
|
|
struct css_hint_ctx {
|
|
struct css_hint *hints;
|
|
uint32_t len;
|
|
};
|
|
|
|
struct css_hint_ctx hint_ctx;
|
|
|
|
nserror css_hint_init(void)
|
|
{
|
|
hint_ctx.hints = malloc(sizeof(struct css_hint) *
|
|
MAX_HINTS_PER_ELEMENT);
|
|
if (hint_ctx.hints == NULL) {
|
|
return NSERROR_NOMEM;
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
void css_hint_fini(void)
|
|
{
|
|
hint_ctx.len = 0;
|
|
free(hint_ctx.hints);
|
|
}
|
|
|
|
static void css_hint_clean(void)
|
|
{
|
|
hint_ctx.len = 0;
|
|
}
|
|
|
|
static inline void css_hint_advance(struct css_hint **hint)
|
|
{
|
|
hint_ctx.len++;
|
|
assert(hint_ctx.len < MAX_HINTS_PER_ELEMENT);
|
|
|
|
(*hint)++;
|
|
}
|
|
|
|
static void css_hint_get_hints(struct css_hint **hints, uint32_t *nhints)
|
|
{
|
|
*hints = hint_ctx.hints;
|
|
*nhints = hint_ctx.len;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* Presentational hint handlers *
|
|
******************************************************************************/
|
|
|
|
static void css_hint_table_cell_border_padding(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
css_qname qs;
|
|
dom_string *attr = NULL;
|
|
dom_node *tablenode = NULL;
|
|
dom_exception exc;
|
|
|
|
qs.ns = NULL;
|
|
qs.name = lwc_string_ref(corestring_lwc_table);
|
|
if (named_ancestor_node(ctx, node, &qs,
|
|
(void *)&tablenode) != CSS_OK) {
|
|
/* Didn't find, or had error */
|
|
lwc_string_unref(qs.name);
|
|
return;
|
|
}
|
|
lwc_string_unref(qs.name);
|
|
|
|
if (tablenode == NULL) {
|
|
return;
|
|
}
|
|
/* No need to unref tablenode, named_ancestor_node does not
|
|
* return a reffed node to the CSS
|
|
*/
|
|
|
|
exc = dom_element_get_attribute(tablenode,
|
|
corestring_dom_border, &attr);
|
|
|
|
if (exc == DOM_NO_ERR && attr != NULL) {
|
|
uint32_t hint_prop;
|
|
css_hint_length hint_length;
|
|
|
|
if (parse_dimension(
|
|
dom_string_data(attr), false,
|
|
&hint_length.value,
|
|
&hint_length.unit) &&
|
|
INTTOFIX(0) != hint_length.value) {
|
|
|
|
for (hint_prop = CSS_PROP_BORDER_TOP_STYLE;
|
|
hint_prop <= CSS_PROP_BORDER_LEFT_STYLE;
|
|
hint_prop++) {
|
|
hint->prop = hint_prop;
|
|
hint->status = CSS_BORDER_STYLE_INSET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
|
|
for (hint_prop = CSS_PROP_BORDER_TOP_WIDTH;
|
|
hint_prop <= CSS_PROP_BORDER_LEFT_WIDTH;
|
|
hint_prop++) {
|
|
hint->prop = hint_prop;
|
|
hint->data.length.value = INTTOFIX(1);
|
|
hint->data.length.unit = CSS_UNIT_PX;
|
|
hint->status = CSS_BORDER_WIDTH_WIDTH;
|
|
css_hint_advance(&hint);
|
|
}
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
|
|
exc = dom_element_get_attribute(tablenode,
|
|
corestring_dom_bordercolor, &attr);
|
|
|
|
if (exc == DOM_NO_ERR && attr != NULL) {
|
|
uint32_t hint_prop;
|
|
css_color hint_color;
|
|
|
|
if (nscss_parse_colour(
|
|
(const char *)dom_string_data(attr),
|
|
&hint_color)) {
|
|
|
|
for (hint_prop = CSS_PROP_BORDER_TOP_COLOR;
|
|
hint_prop <= CSS_PROP_BORDER_LEFT_COLOR;
|
|
hint_prop++) {
|
|
hint->prop = hint_prop;
|
|
hint->data.color = hint_color;
|
|
hint->status = CSS_BORDER_COLOR_COLOR;
|
|
css_hint_advance(&hint);
|
|
}
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
|
|
exc = dom_element_get_attribute(tablenode,
|
|
corestring_dom_cellpadding, &attr);
|
|
|
|
if (exc == DOM_NO_ERR && attr != NULL) {
|
|
uint32_t hint_prop;
|
|
css_hint_length hint_length;
|
|
|
|
if (parse_dimension(
|
|
dom_string_data(attr), false,
|
|
&hint_length.value,
|
|
&hint_length.unit)) {
|
|
|
|
for (hint_prop = CSS_PROP_PADDING_TOP;
|
|
hint_prop <= CSS_PROP_PADDING_LEFT;
|
|
hint_prop++) {
|
|
hint->prop = hint_prop;
|
|
hint->data.length.value = hint_length.value;
|
|
hint->data.length.unit = hint_length.unit;
|
|
hint->status = CSS_PADDING_SET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_vertical_align_table_cells(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *attr = NULL;
|
|
dom_exception err;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_valign, &attr);
|
|
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
hint->data.length.value = 0;
|
|
hint->data.length.unit = CSS_UNIT_PX;
|
|
if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_top)) {
|
|
hint->prop = CSS_PROP_VERTICAL_ALIGN;
|
|
hint->status = CSS_VERTICAL_ALIGN_TOP;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_middle)) {
|
|
hint->prop = CSS_PROP_VERTICAL_ALIGN;
|
|
hint->status = CSS_VERTICAL_ALIGN_MIDDLE;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_bottom)) {
|
|
hint->prop = CSS_PROP_VERTICAL_ALIGN;
|
|
hint->status = CSS_VERTICAL_ALIGN_BOTTOM;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_baseline)) {
|
|
hint->prop = CSS_PROP_VERTICAL_ALIGN;
|
|
hint->status = CSS_VERTICAL_ALIGN_BASELINE;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_vertical_align_replaced(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *attr = NULL;
|
|
dom_exception err;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_valign, &attr);
|
|
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_top)) {
|
|
hint->prop = CSS_PROP_VERTICAL_ALIGN;
|
|
hint->status = CSS_VERTICAL_ALIGN_TOP;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_bottom) ||
|
|
dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_baseline)) {
|
|
hint->prop = CSS_PROP_VERTICAL_ALIGN;
|
|
hint->status = CSS_VERTICAL_ALIGN_BASELINE;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_texttop)) {
|
|
hint->prop = CSS_PROP_VERTICAL_ALIGN;
|
|
hint->status = CSS_VERTICAL_ALIGN_TEXT_TOP;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_absmiddle) ||
|
|
dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_abscenter)) {
|
|
hint->prop = CSS_PROP_VERTICAL_ALIGN;
|
|
hint->status = CSS_VERTICAL_ALIGN_MIDDLE;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_text_align_normal(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *align = NULL;
|
|
dom_exception err;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_align, &align);
|
|
if (err == DOM_NO_ERR && align != NULL) {
|
|
if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_left)) {
|
|
hint->prop = CSS_PROP_TEXT_ALIGN;
|
|
hint->status = CSS_TEXT_ALIGN_LEFT;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_center)) {
|
|
hint->prop = CSS_PROP_TEXT_ALIGN;
|
|
hint->status = CSS_TEXT_ALIGN_CENTER;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_right)) {
|
|
hint->prop = CSS_PROP_TEXT_ALIGN;
|
|
hint->status = CSS_TEXT_ALIGN_RIGHT;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_justify)) {
|
|
hint->prop = CSS_PROP_TEXT_ALIGN;
|
|
hint->status = CSS_TEXT_ALIGN_JUSTIFY;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(align);
|
|
}
|
|
}
|
|
|
|
static void css_hint_text_align_center(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
|
|
hint->prop = CSS_PROP_TEXT_ALIGN;
|
|
hint->status = CSS_TEXT_ALIGN_LIBCSS_CENTER;
|
|
css_hint_advance(&hint);
|
|
}
|
|
|
|
static void css_hint_margin_left_right_align_center(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *attr;
|
|
dom_exception exc;
|
|
|
|
exc = dom_element_get_attribute(node,
|
|
corestring_dom_align, &attr);
|
|
|
|
if (exc == DOM_NO_ERR && attr != NULL) {
|
|
memset(hint, 0, sizeof(*hint) * 2);
|
|
if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_center) ||
|
|
dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_abscenter) ||
|
|
dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_middle) ||
|
|
dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_absmiddle)) {
|
|
hint->prop = CSS_PROP_MARGIN_LEFT;
|
|
hint->status = CSS_MARGIN_AUTO;
|
|
css_hint_advance(&hint);
|
|
|
|
hint->prop = CSS_PROP_MARGIN_RIGHT;
|
|
hint->status = CSS_MARGIN_AUTO;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_text_align_special(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *align = NULL;
|
|
dom_exception err;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_align, &align);
|
|
|
|
if (err == DOM_NO_ERR && align != NULL) {
|
|
if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_center)) {
|
|
hint->prop = CSS_PROP_TEXT_ALIGN;
|
|
hint->status = CSS_TEXT_ALIGN_LIBCSS_CENTER;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_left)) {
|
|
hint->prop = CSS_PROP_TEXT_ALIGN;
|
|
hint->status = CSS_TEXT_ALIGN_LIBCSS_LEFT;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_right)) {
|
|
hint->prop = CSS_PROP_TEXT_ALIGN;
|
|
hint->status = CSS_TEXT_ALIGN_LIBCSS_RIGHT;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_justify)) {
|
|
hint->prop = CSS_PROP_TEXT_ALIGN;
|
|
hint->status = CSS_TEXT_ALIGN_JUSTIFY;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(align);
|
|
}
|
|
}
|
|
|
|
static void css_hint_text_align_table_special(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
|
|
hint->prop = CSS_PROP_TEXT_ALIGN;
|
|
hint->status = CSS_TEXT_ALIGN_INHERIT_IF_NON_MAGIC;
|
|
css_hint_advance(&hint);
|
|
}
|
|
|
|
static void css_hint_margin_hspace_vspace(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *attr = NULL;
|
|
dom_exception exc;
|
|
|
|
exc = dom_element_get_attribute(node,
|
|
corestring_dom_vspace, &attr);
|
|
|
|
if (exc == DOM_NO_ERR && attr != NULL) {
|
|
css_hint_length hint_length;
|
|
if (parse_dimension(
|
|
dom_string_data(attr), false,
|
|
&hint_length.value,
|
|
&hint_length.unit)) {
|
|
hint->prop = CSS_PROP_MARGIN_TOP;
|
|
hint->data.length.value = hint_length.value;
|
|
hint->data.length.unit = hint_length.unit;
|
|
hint->status = CSS_MARGIN_SET;
|
|
css_hint_advance(&hint);
|
|
|
|
hint->prop = CSS_PROP_MARGIN_BOTTOM;
|
|
hint->data.length.value = hint_length.value;
|
|
hint->data.length.unit = hint_length.unit;
|
|
hint->status = CSS_MARGIN_SET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
|
|
exc = dom_element_get_attribute(node,
|
|
corestring_dom_hspace, &attr);
|
|
|
|
if (exc == DOM_NO_ERR && attr != NULL) {
|
|
css_hint_length hint_length;
|
|
if (parse_dimension(
|
|
dom_string_data(attr), false,
|
|
&hint_length.value,
|
|
&hint_length.unit)) {
|
|
hint->prop = CSS_PROP_MARGIN_LEFT;
|
|
hint->data.length.value = hint_length.value;
|
|
hint->data.length.unit = hint_length.unit;
|
|
hint->status = CSS_MARGIN_SET;
|
|
css_hint_advance(&hint);
|
|
|
|
hint->prop = CSS_PROP_MARGIN_RIGHT;
|
|
hint->data.length.value = hint_length.value;
|
|
hint->data.length.unit = hint_length.unit;
|
|
hint->status = CSS_MARGIN_SET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_margin_left_right_hr(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *attr;
|
|
dom_exception exc;
|
|
|
|
exc = dom_element_get_attribute(node,
|
|
corestring_dom_align, &attr);
|
|
|
|
if (exc == DOM_NO_ERR && attr != NULL) {
|
|
memset(hint, 0, sizeof(*hint) * 2);
|
|
if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_left)) {
|
|
hint->prop = CSS_PROP_MARGIN_LEFT;
|
|
hint->data.length.value = 0;
|
|
hint->data.length.unit = CSS_UNIT_PX;
|
|
hint->status = CSS_MARGIN_SET;
|
|
css_hint_advance(&hint);
|
|
|
|
hint->prop = CSS_PROP_MARGIN_RIGHT;
|
|
hint->status = CSS_MARGIN_AUTO;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_center)) {
|
|
hint->prop = CSS_PROP_MARGIN_LEFT;
|
|
hint->status = CSS_MARGIN_AUTO;
|
|
css_hint_advance(&hint);
|
|
|
|
hint->prop = CSS_PROP_MARGIN_RIGHT;
|
|
hint->status = CSS_MARGIN_AUTO;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(attr,
|
|
corestring_lwc_right)) {
|
|
hint->prop = CSS_PROP_MARGIN_LEFT;
|
|
hint->status = CSS_MARGIN_AUTO;
|
|
css_hint_advance(&hint);
|
|
|
|
hint->prop = CSS_PROP_MARGIN_RIGHT;
|
|
hint->data.length.value = 0;
|
|
hint->data.length.unit = CSS_UNIT_PX;
|
|
hint->status = CSS_MARGIN_SET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_table_spacing_border(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_exception exc;
|
|
dom_string *attr = NULL;
|
|
|
|
exc = dom_element_get_attribute(node, corestring_dom_border, &attr);
|
|
|
|
if (exc == DOM_NO_ERR && attr != NULL) {
|
|
uint32_t hint_prop;
|
|
css_hint_length hint_length;
|
|
|
|
for (hint_prop = CSS_PROP_BORDER_TOP_STYLE;
|
|
hint_prop <= CSS_PROP_BORDER_LEFT_STYLE;
|
|
hint_prop++) {
|
|
hint->prop = hint_prop;
|
|
hint->status = CSS_BORDER_STYLE_OUTSET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
|
|
if (parse_dimension(
|
|
dom_string_data(attr), false,
|
|
&hint_length.value,
|
|
&hint_length.unit)) {
|
|
|
|
for (hint_prop = CSS_PROP_BORDER_TOP_WIDTH;
|
|
hint_prop <= CSS_PROP_BORDER_LEFT_WIDTH;
|
|
hint_prop++) {
|
|
hint->prop = hint_prop;
|
|
hint->data.length.value = hint_length.value;
|
|
hint->data.length.unit = hint_length.unit;
|
|
hint->status = CSS_BORDER_WIDTH_WIDTH;
|
|
css_hint_advance(&hint);
|
|
}
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
|
|
exc = dom_element_get_attribute(node,
|
|
corestring_dom_bordercolor, &attr);
|
|
|
|
if (exc == DOM_NO_ERR && attr != NULL) {
|
|
uint32_t hint_prop;
|
|
css_color hint_color;
|
|
|
|
if (nscss_parse_colour(
|
|
(const char *)dom_string_data(attr),
|
|
&hint_color)) {
|
|
|
|
for (hint_prop = CSS_PROP_BORDER_TOP_COLOR;
|
|
hint_prop <= CSS_PROP_BORDER_LEFT_COLOR;
|
|
hint_prop++) {
|
|
hint->prop = hint_prop;
|
|
hint->data.color = hint_color;
|
|
hint->status = CSS_BORDER_COLOR_COLOR;
|
|
css_hint_advance(&hint);
|
|
}
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
|
|
exc = dom_element_get_attribute(node,
|
|
corestring_dom_cellspacing, &attr);
|
|
|
|
if (exc == DOM_NO_ERR && attr != NULL) {
|
|
if (parse_dimension(
|
|
(const char *)dom_string_data(attr), false,
|
|
&hint->data.position.h.value,
|
|
&hint->data.position.h.unit)) {
|
|
hint->prop = CSS_PROP_BORDER_SPACING;
|
|
hint->data.position.v = hint->data.position.h;
|
|
hint->status = CSS_BORDER_SPACING_SET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_height(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *attr = NULL;
|
|
dom_exception err;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_height, &attr);
|
|
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
if (parse_dimension(
|
|
(const char *)dom_string_data(attr), false,
|
|
&hint->data.length.value,
|
|
&hint->data.length.unit)) {
|
|
hint->prop = CSS_PROP_HEIGHT;
|
|
hint->status = CSS_HEIGHT_SET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_width(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *attr = NULL;
|
|
dom_exception err;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_width, &attr);
|
|
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
if (parse_dimension(
|
|
(const char *)dom_string_data(attr), false,
|
|
&hint->data.length.value,
|
|
&hint->data.length.unit)) {
|
|
hint->prop = CSS_PROP_WIDTH;
|
|
hint->status = CSS_WIDTH_SET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_height_width_textarea(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *attr = NULL;
|
|
dom_exception err;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_rows, &attr);
|
|
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
if (parse_dimension(
|
|
(const char *)dom_string_data(attr), false,
|
|
&hint->data.length.value,
|
|
&hint->data.length.unit)) {
|
|
hint->prop = CSS_PROP_HEIGHT;
|
|
hint->data.length.unit = CSS_UNIT_EM;
|
|
hint->status = CSS_HEIGHT_SET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_cols, &attr);
|
|
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
if (parse_dimension(
|
|
(const char *)dom_string_data(attr), false,
|
|
&hint->data.length.value,
|
|
&hint->data.length.unit)) {
|
|
hint->prop = CSS_PROP_WIDTH;
|
|
hint->data.length.unit = CSS_UNIT_EX;
|
|
hint->status = CSS_WIDTH_SET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_height_width_canvas(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_string *attr = NULL;
|
|
dom_exception err;
|
|
bool set_dim = false;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_height, &attr);
|
|
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
if (parse_dimension(
|
|
(const char *)dom_string_data(attr), true,
|
|
&hint->data.length.value,
|
|
&hint->data.length.unit)) {
|
|
hint->prop = CSS_PROP_HEIGHT;
|
|
hint->data.length.unit = CSS_UNIT_PX;
|
|
hint->status = CSS_HEIGHT_SET;
|
|
css_hint_advance(&hint);
|
|
set_dim = true;
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
if (set_dim == false) {
|
|
/* canvas defaults to 150px tall */
|
|
hint->prop = CSS_PROP_HEIGHT;
|
|
hint->data.length.unit = CSS_UNIT_PX;
|
|
hint->data.length.value = INTTOFIX(150);
|
|
hint->status = CSS_HEIGHT_SET;
|
|
css_hint_advance(&hint);
|
|
} else {
|
|
set_dim = false;
|
|
}
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_width, &attr);
|
|
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
if (parse_dimension(
|
|
(const char *)dom_string_data(attr), true,
|
|
&hint->data.length.value,
|
|
&hint->data.length.unit)) {
|
|
hint->prop = CSS_PROP_WIDTH;
|
|
hint->data.length.unit = CSS_UNIT_PX;
|
|
hint->status = CSS_WIDTH_SET;
|
|
css_hint_advance(&hint);
|
|
set_dim = true;
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
if (set_dim == false) {
|
|
/* canvas defaults to 300px wide */
|
|
hint->prop = CSS_PROP_WIDTH;
|
|
hint->data.length.unit = CSS_UNIT_PX;
|
|
hint->data.length.value = INTTOFIX(300);
|
|
hint->status = CSS_WIDTH_SET;
|
|
css_hint_advance(&hint);
|
|
}
|
|
}
|
|
|
|
static void css_hint_width_input(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &(hint_ctx.hints[hint_ctx.len]);
|
|
dom_string *attr = NULL;
|
|
dom_exception err;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_size, &attr);
|
|
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
if (parse_dimension(
|
|
(const char *)dom_string_data(attr), false,
|
|
&hint->data.length.value,
|
|
&hint->data.length.unit)) {
|
|
dom_string *attr2 = NULL;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_type, &attr2);
|
|
if (err == DOM_NO_ERR) {
|
|
|
|
hint->prop = CSS_PROP_WIDTH;
|
|
hint->status = CSS_WIDTH_SET;
|
|
|
|
if (attr2 == NULL ||
|
|
dom_string_caseless_lwc_isequal(
|
|
attr2,
|
|
corestring_lwc_text) ||
|
|
dom_string_caseless_lwc_isequal(
|
|
attr2,
|
|
corestring_lwc_search) ||
|
|
dom_string_caseless_lwc_isequal(
|
|
attr2,
|
|
corestring_lwc_password) ||
|
|
dom_string_caseless_lwc_isequal(
|
|
attr2,
|
|
corestring_lwc_file)) {
|
|
hint->data.length.unit = CSS_UNIT_EX;
|
|
}
|
|
if (attr2 != NULL) {
|
|
dom_string_unref(attr2);
|
|
}
|
|
css_hint_advance(&hint);
|
|
}
|
|
}
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
static void css_hint_anchor_color(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
css_error error;
|
|
dom_exception err;
|
|
dom_string *color;
|
|
dom_node *bodynode = NULL;
|
|
|
|
/* find body node */
|
|
css_qname qs;
|
|
bool is_visited;
|
|
|
|
qs.ns = NULL;
|
|
qs.name = lwc_string_ref(corestring_lwc_body);
|
|
if (named_ancestor_node(ctx, node, &qs,
|
|
(void *)&bodynode) != CSS_OK) {
|
|
/* Didn't find, or had error */
|
|
lwc_string_unref(qs.name);
|
|
return ;
|
|
}
|
|
lwc_string_unref(qs.name);
|
|
|
|
if (bodynode == NULL) {
|
|
return;
|
|
}
|
|
|
|
error = node_is_visited(ctx, node, &is_visited);
|
|
if (error != CSS_OK)
|
|
return;
|
|
|
|
if (is_visited) {
|
|
err = dom_element_get_attribute(bodynode,
|
|
corestring_dom_vlink, &color);
|
|
} else {
|
|
err = dom_element_get_attribute(bodynode,
|
|
corestring_dom_link, &color);
|
|
}
|
|
|
|
if (err == DOM_NO_ERR && color != NULL) {
|
|
if (nscss_parse_colour(
|
|
(const char *)dom_string_data(color),
|
|
&hint->data.color)) {
|
|
hint->prop = CSS_PROP_COLOR;
|
|
hint->status = CSS_COLOR_COLOR;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(color);
|
|
}
|
|
}
|
|
|
|
static void css_hint_body_color(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_exception err;
|
|
dom_string *color;
|
|
|
|
err = dom_element_get_attribute(node, corestring_dom_text, &color);
|
|
|
|
if (err == DOM_NO_ERR && color != NULL) {
|
|
if (nscss_parse_colour(
|
|
(const char *)dom_string_data(color),
|
|
&hint->data.color)) {
|
|
hint->prop = CSS_PROP_COLOR;
|
|
hint->status = CSS_COLOR_COLOR;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(color);
|
|
}
|
|
}
|
|
|
|
static void css_hint_color(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_exception err;
|
|
dom_string *color;
|
|
|
|
err = dom_element_get_attribute(node, corestring_dom_color, &color);
|
|
|
|
if (err == DOM_NO_ERR && color != NULL) {
|
|
if (nscss_parse_colour(
|
|
(const char *)dom_string_data(color),
|
|
&hint->data.color)) {
|
|
hint->prop = CSS_PROP_COLOR;
|
|
hint->status = CSS_COLOR_COLOR;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(color);
|
|
}
|
|
}
|
|
|
|
static void css_hint_font_size(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_exception err;
|
|
dom_string *size;
|
|
|
|
err = dom_element_get_attribute(node, corestring_dom_size, &size);
|
|
if (err == DOM_NO_ERR && size != NULL) {
|
|
if (parse_font_size(
|
|
(const char *)dom_string_data(size),
|
|
&hint->status,
|
|
&hint->data.length.value,
|
|
&hint->data.length.unit)) {
|
|
hint->prop = CSS_PROP_FONT_SIZE;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(size);
|
|
}
|
|
}
|
|
|
|
static void css_hint_float(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_exception err;
|
|
dom_string *align;
|
|
|
|
err = dom_element_get_attribute(node, corestring_dom_align, &align);
|
|
if (err == DOM_NO_ERR && align != NULL) {
|
|
if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_left)) {
|
|
hint->prop = CSS_PROP_FLOAT;
|
|
hint->status = CSS_FLOAT_LEFT;
|
|
css_hint_advance(&hint);
|
|
|
|
} else if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_right)) {
|
|
hint->prop = CSS_PROP_FLOAT;
|
|
hint->status = CSS_FLOAT_RIGHT;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(align);
|
|
}
|
|
}
|
|
|
|
static void css_hint_caption_side(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_exception err;
|
|
dom_string *align = NULL;
|
|
|
|
err = dom_element_get_attribute(node, corestring_dom_align, &align);
|
|
if (err == DOM_NO_ERR && align != NULL) {
|
|
if (dom_string_caseless_lwc_isequal(align,
|
|
corestring_lwc_bottom)) {
|
|
hint->prop = CSS_PROP_CAPTION_SIDE;
|
|
hint->status = CSS_CAPTION_SIDE_BOTTOM;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(align);
|
|
}
|
|
}
|
|
|
|
static void css_hint_bg_color(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &hint_ctx.hints[hint_ctx.len];
|
|
dom_exception err;
|
|
dom_string *bgcolor;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_bgcolor, &bgcolor);
|
|
if (err == DOM_NO_ERR && bgcolor != NULL) {
|
|
if (nscss_parse_colour(
|
|
(const char *)dom_string_data(bgcolor),
|
|
&hint->data.color)) {
|
|
hint->prop = CSS_PROP_BACKGROUND_COLOR;
|
|
hint->status = CSS_BACKGROUND_COLOR_COLOR;
|
|
css_hint_advance(&hint);
|
|
}
|
|
dom_string_unref(bgcolor);
|
|
}
|
|
}
|
|
|
|
static void css_hint_bg_image(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &(hint_ctx.hints[hint_ctx.len]);
|
|
dom_exception err;
|
|
dom_string *attr;
|
|
|
|
err = dom_element_get_attribute(node,
|
|
corestring_dom_background, &attr);
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
nsurl *url;
|
|
nserror error = nsurl_join(ctx->base_url,
|
|
(const char *)dom_string_data(attr), &url);
|
|
dom_string_unref(attr);
|
|
|
|
if (error == NSERROR_OK) {
|
|
lwc_string *iurl;
|
|
lwc_error lerror = lwc_intern_string(nsurl_access(url),
|
|
nsurl_length(url), &iurl);
|
|
nsurl_unref(url);
|
|
|
|
if (lerror == lwc_error_ok) {
|
|
hint->prop = CSS_PROP_BACKGROUND_IMAGE;
|
|
hint->data.string = iurl;
|
|
hint->status = CSS_BACKGROUND_IMAGE_IMAGE;
|
|
css_hint_advance(&hint);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void css_hint_white_space_nowrap(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &(hint_ctx.hints[hint_ctx.len]);
|
|
dom_exception err;
|
|
bool nowrap;
|
|
|
|
err = dom_element_has_attribute(node, corestring_dom_nowrap, &nowrap);
|
|
if (err == DOM_NO_ERR && nowrap == true) {
|
|
hint->prop = CSS_PROP_WHITE_SPACE;
|
|
hint->status = CSS_WHITE_SPACE_NOWRAP;
|
|
css_hint_advance(&hint);
|
|
}
|
|
}
|
|
|
|
static void css_hint_list(
|
|
nscss_select_ctx *ctx,
|
|
dom_node *node)
|
|
{
|
|
struct css_hint *hint = &(hint_ctx.hints[hint_ctx.len]);
|
|
dom_exception err;
|
|
dom_string *attr;
|
|
|
|
err = dom_element_get_attribute(node, corestring_dom_type, &attr);
|
|
if (err == DOM_NO_ERR && attr != NULL) {
|
|
const char *attr_str = dom_string_data(attr);
|
|
size_t attr_len = dom_string_byte_length(attr);
|
|
enum css_list_style_type_e type = CSS_LIST_STYLE_TYPE_INHERIT;
|
|
|
|
if (attr_len == 1) {
|
|
switch (attr_str[0]) {
|
|
case 'a':
|
|
type = CSS_LIST_STYLE_TYPE_LOWER_ALPHA;
|
|
break;
|
|
case 'A':
|
|
type = CSS_LIST_STYLE_TYPE_UPPER_ALPHA;
|
|
break;
|
|
case 'i':
|
|
type = CSS_LIST_STYLE_TYPE_LOWER_ROMAN;
|
|
break;
|
|
case 'I':
|
|
type = CSS_LIST_STYLE_TYPE_UPPER_ROMAN;
|
|
break;
|
|
case '1':
|
|
type = CSS_LIST_STYLE_TYPE_DECIMAL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (type != CSS_LIST_STYLE_TYPE_INHERIT) {
|
|
hint->prop = CSS_PROP_LIST_STYLE_TYPE;
|
|
hint->status = type;
|
|
css_hint_advance(&hint);
|
|
}
|
|
|
|
dom_string_unref(attr);
|
|
}
|
|
}
|
|
|
|
|
|
/* Exported function, documented in css/hints.h */
|
|
css_error node_presentational_hint(void *pw, void *node,
|
|
uint32_t *nhints, css_hint **hints)
|
|
{
|
|
dom_exception exc;
|
|
dom_html_element_type tag_type;
|
|
|
|
if (nsoption_bool(author_level_css) == false) {
|
|
*nhints = 0;
|
|
*hints = NULL;
|
|
return CSS_OK;
|
|
}
|
|
|
|
css_hint_clean();
|
|
|
|
exc = dom_html_element_get_tag_type(node, &tag_type);
|
|
if (exc != DOM_NO_ERR) {
|
|
tag_type = DOM_HTML_ELEMENT_TYPE__UNKNOWN;
|
|
}
|
|
|
|
switch (tag_type) {
|
|
case DOM_HTML_ELEMENT_TYPE_TH:
|
|
case DOM_HTML_ELEMENT_TYPE_TD:
|
|
css_hint_width(pw, node);
|
|
css_hint_table_cell_border_padding(pw, node);
|
|
css_hint_white_space_nowrap(pw, node);
|
|
fallthrough;
|
|
case DOM_HTML_ELEMENT_TYPE_TR:
|
|
css_hint_height(pw, node);
|
|
fallthrough;
|
|
case DOM_HTML_ELEMENT_TYPE_THEAD:
|
|
case DOM_HTML_ELEMENT_TYPE_TBODY:
|
|
case DOM_HTML_ELEMENT_TYPE_TFOOT:
|
|
css_hint_text_align_special(pw, node);
|
|
fallthrough;
|
|
case DOM_HTML_ELEMENT_TYPE_COL:
|
|
css_hint_vertical_align_table_cells(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_APPLET:
|
|
case DOM_HTML_ELEMENT_TYPE_IMG:
|
|
css_hint_margin_hspace_vspace(pw, node);
|
|
fallthrough;
|
|
case DOM_HTML_ELEMENT_TYPE_EMBED:
|
|
case DOM_HTML_ELEMENT_TYPE_IFRAME:
|
|
case DOM_HTML_ELEMENT_TYPE_OBJECT:
|
|
css_hint_height(pw, node);
|
|
css_hint_width(pw, node);
|
|
css_hint_vertical_align_replaced(pw, node);
|
|
css_hint_float(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_P:
|
|
case DOM_HTML_ELEMENT_TYPE_H1:
|
|
case DOM_HTML_ELEMENT_TYPE_H2:
|
|
case DOM_HTML_ELEMENT_TYPE_H3:
|
|
case DOM_HTML_ELEMENT_TYPE_H4:
|
|
case DOM_HTML_ELEMENT_TYPE_H5:
|
|
case DOM_HTML_ELEMENT_TYPE_H6:
|
|
css_hint_text_align_normal(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_CENTER:
|
|
css_hint_text_align_center(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_CAPTION:
|
|
css_hint_caption_side(pw, node);
|
|
fallthrough;
|
|
case DOM_HTML_ELEMENT_TYPE_DIV:
|
|
css_hint_text_align_special(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_TABLE:
|
|
css_hint_text_align_table_special(pw, node);
|
|
css_hint_table_spacing_border(pw, node);
|
|
css_hint_float(pw, node);
|
|
css_hint_margin_left_right_align_center(pw, node);
|
|
css_hint_width(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_HR:
|
|
css_hint_width(pw, node);
|
|
css_hint_margin_left_right_hr(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_TEXTAREA:
|
|
css_hint_height_width_textarea(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_INPUT:
|
|
css_hint_width_input(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_A:
|
|
css_hint_anchor_color(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_FONT:
|
|
css_hint_font_size(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_BODY:
|
|
css_hint_body_color(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_CANVAS:
|
|
css_hint_height_width_canvas(pw, node);
|
|
break;
|
|
case DOM_HTML_ELEMENT_TYPE_OL:
|
|
css_hint_list(pw, node);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (tag_type != DOM_HTML_ELEMENT_TYPE__UNKNOWN) {
|
|
css_hint_color(pw, node);
|
|
css_hint_bg_color(pw, node);
|
|
css_hint_bg_image(pw, node);
|
|
}
|
|
|
|
#ifdef LOG_STATS
|
|
NSLOG(netsurf, INFO, "Properties with hints: %i", hint_ctx.len);
|
|
#endif
|
|
|
|
css_hint_get_hints(hints, nhints);
|
|
|
|
return CSS_OK;
|
|
}
|