diff options
Diffstat (limited to 'src/parse/mq.c')
-rw-r--r-- | src/parse/mq.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/parse/mq.c b/src/parse/mq.c index 214b5a2..e7227f7 100644 --- a/src/parse/mq.c +++ b/src/parse/mq.c @@ -1040,3 +1040,106 @@ css_error css__mq_parse_media_list(lwc_string **strings, return CSS_OK; } +typedef struct css_mq_parse_ctx { + lwc_string **strings; + css_mq_query *media; +} css_mq_parse_ctx; + +static css_error css_parse_media_query_handle_event( + css_parser_event type, + const parserutils_vector *tokens, + void *pw) +{ + int idx = 0; + css_error err; + css_mq_query *media; + const css_token *tok; + css_mq_parse_ctx *ctx = pw; + lwc_string **strings = ctx->strings; + + UNUSED(type); + + /* Skip @media */ + tok = parserutils_vector_iterate(tokens, &idx); + assert(tok->type == CSS_TOKEN_ATKEYWORD); + UNUSED(tok); + + /* Skip whitespace */ + tok = parserutils_vector_iterate(tokens, &idx); + assert(tok->type == CSS_TOKEN_S); + UNUSED(tok); + + err = css__mq_parse_media_list(strings, tokens, &idx, &media); + if (err != CSS_OK) { + return CSS_OK; + } + + ctx->media = media; + return CSS_OK; +} + +css_error css_parse_media_query(lwc_string **strings, + const uint8_t *mq, size_t len, + css_mq_query **media_out) +{ + css_error err; + css_parser *parser; + css_mq_parse_ctx ctx = { + .strings = strings, + }; + css_parser_optparams params_quirks = { + .quirks = false, + }; + css_parser_optparams params_handler = { + .event_handler = { + .handler = css_parse_media_query_handle_event, + .pw = &ctx, + }, + }; + + err = css__parser_create_for_media_query(NULL, + CSS_CHARSET_DEFAULT, &parser); + if (err != CSS_OK) { + return err; + } + + err = css__parser_setopt(parser, CSS_PARSER_QUIRKS, + ¶ms_quirks); + if (err != CSS_OK) { + css__parser_destroy(parser); + return err; + } + + err = css__parser_setopt(parser, CSS_PARSER_EVENT_HANDLER, + ¶ms_handler); + if (err != CSS_OK) { + css__parser_destroy(parser); + return err; + } + + err = css__parser_parse_chunk(parser, + (const uint8_t *)"@media ", + strlen("@media ")); + if (err != CSS_OK && err != CSS_NEEDDATA) { + css__parser_destroy(parser); + return err; + } + + err = css__parser_parse_chunk(parser, mq, len); + if (err != CSS_OK && err != CSS_NEEDDATA) { + css__parser_destroy(parser); + return err; + } + + err = css__parser_completed(parser); + if (err != CSS_OK) { + css__parser_destroy(parser); + return err; + } + + css__parser_destroy(parser); + + *media_out = ctx.media; + return CSS_OK; +} + |