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Diffstat (limited to 'src/parse/properties/overflow.c')
-rw-r--r-- | src/parse/properties/overflow.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/parse/properties/overflow.c b/src/parse/properties/overflow.c new file mode 100644 index 0000000..ca133ed --- /dev/null +++ b/src/parse/properties/overflow.c @@ -0,0 +1,97 @@ +/* + * This file is part of LibCSS. + * Licensed under the MIT License, + * http://www.opensource.org/licenses/mit-license.php + * Copyright 2012 Michael Drake <tlsa@netsurf-browser.org> + */ + +#include <assert.h> +#include <string.h> + +#include "bytecode/bytecode.h" +#include "bytecode/opcodes.h" +#include "parse/properties/properties.h" +#include "parse/properties/utils.h" + +/** + * Parse overflow shorthand + * + * \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_overflow(css_language *c, + const parserutils_vector *vector, int *ctx, + css_style *result) +{ + int orig_ctx = *ctx; + css_error error1, error2 = CSS_OK; + const css_token *token; + bool match; + + token = parserutils_vector_iterate(vector, ctx); + if ((token == NULL) || ((token->type != CSS_TOKEN_IDENT))) { + *ctx = orig_ctx; + return CSS_INVALID; + } + + if ((lwc_string_caseless_isequal(token->idata, + c->strings[INHERIT], &match) == lwc_error_ok && + match)) { + error1 = css_stylesheet_style_inherit(result, + CSS_PROP_OVERFLOW_X); + error2 = css_stylesheet_style_inherit(result, + CSS_PROP_OVERFLOW_Y); + + } else if ((lwc_string_caseless_isequal(token->idata, + c->strings[VISIBLE], &match) == lwc_error_ok && + match)) { + error1 = css__stylesheet_style_appendOPV(result, + CSS_PROP_OVERFLOW_X, 0, OVERFLOW_VISIBLE); + error2 = css__stylesheet_style_appendOPV(result, + CSS_PROP_OVERFLOW_Y, 0, OVERFLOW_VISIBLE); + + } else if ((lwc_string_caseless_isequal(token->idata, + c->strings[HIDDEN], &match) == lwc_error_ok && + match)) { + error1 = css__stylesheet_style_appendOPV(result, + CSS_PROP_OVERFLOW_X, 0, OVERFLOW_HIDDEN); + error2 = css__stylesheet_style_appendOPV(result, + CSS_PROP_OVERFLOW_Y, 0, OVERFLOW_HIDDEN); + + } else if ((lwc_string_caseless_isequal(token->idata, + c->strings[SCROLL], &match) == lwc_error_ok && + match)) { + error1 = css__stylesheet_style_appendOPV(result, + CSS_PROP_OVERFLOW_X, 0, OVERFLOW_SCROLL); + error2 = css__stylesheet_style_appendOPV(result, + CSS_PROP_OVERFLOW_Y, 0, OVERFLOW_SCROLL); + + } else if ((lwc_string_caseless_isequal(token->idata, + c->strings[AUTO], &match) == lwc_error_ok && + match)) { + error1 = css__stylesheet_style_appendOPV(result, + CSS_PROP_OVERFLOW_X, 0, OVERFLOW_AUTO); + error2 = css__stylesheet_style_appendOPV(result, + CSS_PROP_OVERFLOW_Y, 0, OVERFLOW_AUTO); + + } else { + error1 = CSS_INVALID; + } + + if (error2 != CSS_OK) + error1 = error2; + + if (error1 != CSS_OK) + *ctx = orig_ctx; + + return error1; +} + |