/*
* This file is part of LibCSS.
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
* Copyright 2009 John-Mark Bell <jmb@netsurf-browser.org>
*/
#include <string.h>
#include "bytecode/bytecode.h"
#include "bytecode/opcodes.h"
#include "parse/properties/properties.h"
#include "parse/properties/utils.h"
/**
* Parse cursor
*
* \param c Parsing context
* \param vector Vector of tokens to process
* \param ctx Pointer to vector iteration context
* \param result Pointer to location to receive resulting style
* \return CSS_OK on success,
* CSS_NOMEM on memory exhaustion,
* CSS_INVALID if the input is not valid
*
* Post condition: \a *ctx is updated with the next token to process
* If the input is invalid, then \a *ctx remains unchanged.
*/
css_error css__parse_cursor(css_language *c,
const parserutils_vector *vector, int *ctx,
css_style *result)
{
int orig_ctx = *ctx;
css_error error = CSS_OK;
const css_token *token;
bool match;
/* [ (URI ',')* IDENT(auto, crosshair, default, pointer, move, e-resize,
* ne-resize, nw-resize, n-resize, se-resize, sw-resize,
* s-resize, w-resize, text, wait, help, progress) ]
* | IDENT(inherit)
*/
token = parserutils_vector_iterate(vector, ctx);
if ((token == NULL) ||
(token->type != CSS_TOKEN_IDENT &&
token->type != CSS_TOKEN_URI)) {
*ctx = orig_ctx;
return CSS_INVALID;
}
if ((token->type == CSS_TOKEN_IDENT) &&
(lwc_string_caseless_isequal(token->idata,
c->strings[INHERIT],
&match) == lwc_error_ok && match)) {
error = css_stylesheet_style_inherit(result, CSS_PROP_CURSOR);
} else {
bool first = true;
/* Macro to output the value marker, awkward because we need to check
* first to determine how the value is constructed.
*/
#define CSS_APPEND(CSSVAL) css__stylesheet_style_append(result, first?buildOPV(CSS_PROP_CURSOR, 0, CSSVAL):CSSVAL)
/* URI* */
while (token != NULL && token->type == CSS_TOKEN_URI) {
lwc_string *uri;
uint32_t uri_snumber;
error = c->sheet->resolve(c->sheet->resolve_pw,
c->sheet->url,
token->idata, &uri);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = css__stylesheet_string_add(c->sheet,
uri,
&uri_snumber);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = CSS_APPEND(CURSOR_URI);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = css__stylesheet_style_append(result, uri_snumber);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
consumeWhitespace(vector, ctx);
/* Expect ',' */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL || tokenIsChar(token, ',') == false) {
*ctx = orig_ctx;
return CSS_INVALID;
}
consumeWhitespace(vector, ctx);
/* Expect either URI or IDENT */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL || (token->type != CSS_TOKEN_IDENT &&
token->type != CSS_TOKEN_URI)) {
*ctx = orig_ctx;
return CSS_INVALID;
}
first = false;
}
/* IDENT */
if (token != NULL && token->type == CSS_TOKEN_IDENT) {
if ((lwc_string_caseless_isequal(
token->idata, c->strings[AUTO],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_AUTO);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[CROSSHAIR],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_CROSSHAIR);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[DEFAULT],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_DEFAULT);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[POINTER],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_POINTER);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[MOVE],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_MOVE);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[E_RESIZE],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_E_RESIZE);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[NE_RESIZE],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_NE_RESIZE);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[NW_RESIZE],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_NW_RESIZE);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[N_RESIZE],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_N_RESIZE);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[SE_RESIZE],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_SE_RESIZE);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[SW_RESIZE],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_SW_RESIZE);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[S_RESIZE],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_S_RESIZE);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[W_RESIZE],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_W_RESIZE);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[LIBCSS_TEXT],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_TEXT);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[WAIT],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_WAIT);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[HELP],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_HELP);
} else if ((lwc_string_caseless_isequal(
token->idata, c->strings[PROGRESS],
&match) == lwc_error_ok && match)) {
error=CSS_APPEND(CURSOR_PROGRESS);
} else {
error = CSS_INVALID;
}
}
}
if (error != CSS_OK)
*ctx = orig_ctx;
return error;
}