diff options
Diffstat (limited to 'src/select/properties/quotes.c')
| -rw-r--r-- | src/select/properties/quotes.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/select/properties/quotes.c b/src/select/properties/quotes.c new file mode 100644 index 0000000..da3b737 --- /dev/null +++ b/src/select/properties/quotes.c @@ -0,0 +1,187 @@ +/* + * 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 "bytecode/bytecode.h" +#include "bytecode/opcodes.h" +#include "select/propset.h" +#include "select/propget.h" +#include "utils/utils.h" + +#include "select/properties/properties.h" +#include "select/properties/helpers.h" + +css_error cascade_quotes(uint32_t opv, css_style *style, + css_select_state *state) +{ + uint16_t value = CSS_QUOTES_INHERIT; + lwc_string **quotes = NULL; + uint32_t n_quotes = 0; + + if (isInherit(opv) == false) { + uint32_t v = getValue(opv); + + value = CSS_QUOTES_STRING; + + while (v != QUOTES_NONE) { + lwc_string *open, *close; + lwc_string **temp; + + open = *((lwc_string **) style->bytecode); + advance_bytecode(style, sizeof(lwc_string *)); + + close = *((lwc_string **) style->bytecode); + advance_bytecode(style, sizeof(lwc_string *)); + + temp = state->result->alloc(quotes, + (n_quotes + 2) * sizeof(lwc_string *), + state->result->pw); + if (temp == NULL) { + if (quotes != NULL) { + state->result->alloc(quotes, 0, + state->result->pw); + } + return CSS_NOMEM; + } + + quotes = temp; + + quotes[n_quotes++] = open; + quotes[n_quotes++] = close; + + v = *((uint32_t *) style->bytecode); + advance_bytecode(style, sizeof(v)); + } + } + + /* Terminate array, if required */ + if (n_quotes > 0) { + lwc_string **temp; + + temp = state->result->alloc(quotes, + (n_quotes + 1) * sizeof(lwc_string *), + state->result->pw); + if (temp == NULL) { + state->result->alloc(quotes, 0, state->result->pw); + return CSS_NOMEM; + } + + quotes = temp; + + quotes[n_quotes] = NULL; + } + + if (outranks_existing(getOpcode(opv), isImportant(opv), state, + isInherit(opv))) { + css_error error; + + error = set_quotes(state->result, value, quotes); + if (error != CSS_OK && quotes != NULL) + state->result->alloc(quotes, 0, state->result->pw); + + return error; + } else { + if (quotes != NULL) + state->result->alloc(quotes, 0, state->result->pw); + } + + return CSS_OK; +} + +css_error set_quotes_from_hint(const css_hint *hint, + css_computed_style *style) +{ + lwc_string **item; + css_error error; + + error = set_quotes(style, hint->status, hint->data.strings); + + for (item = hint->data.strings; + item != NULL && (*item) != NULL; item++) { + lwc_string_unref(*item); + } + + if (error != CSS_OK && hint->data.strings != NULL) + style->alloc(hint->data.strings, 0, style->pw); + + return error; +} + +css_error initial_quotes(css_select_state *state) +{ + css_hint hint; + css_error error; + + error = state->handler->ua_default_for_property(state->pw, + CSS_PROP_QUOTES, &hint); + if (error != CSS_OK) + return error; + + return set_quotes_from_hint(&hint, state->result); +} + +css_error compose_quotes(const css_computed_style *parent, + const css_computed_style *child, + css_computed_style *result) +{ + css_error error; + lwc_string **quotes = NULL; + uint8_t type = get_quotes(child, "es); + + if (type == CSS_QUOTES_INHERIT || result != child) { + size_t n_quotes = 0; + lwc_string **copy = NULL; + + if (type == CSS_QUOTES_INHERIT) { + type = get_quotes(parent, "es); + } + + if (quotes != NULL) { + lwc_string **i; + + for (i = quotes; (*i) != NULL; i++) + n_quotes++; + + copy = result->alloc(NULL, (n_quotes + 1) * + sizeof(lwc_string *), + result->pw); + if (copy == NULL) + return CSS_NOMEM; + + memcpy(copy, quotes, (n_quotes + 1) * + sizeof(lwc_string *)); + } + + error = set_quotes(result, type, copy); + if (error != CSS_OK && copy != NULL) + result->alloc(copy, 0, result->pw); + + return error; + } + + return CSS_OK; +} + +uint32_t destroy_quotes(void *bytecode) +{ + uint32_t consumed = sizeof(uint32_t); + uint32_t value = getValue(*((uint32_t*)bytecode)); + bytecode = ((uint8_t*)bytecode) + sizeof(uint32_t); + + while (value == QUOTES_STRING) { + lwc_string **str = ((lwc_string **)bytecode); + consumed += sizeof(lwc_string*) * 2; + bytecode = ((uint8_t*)bytecode) + (sizeof(lwc_string*) * 2); + lwc_string_unref(str[0]); + lwc_string_unref(str[1]); + + consumed += sizeof(uint32_t); + value = *((uint32_t*)bytecode); + bytecode = ((uint8_t*)bytecode) + sizeof(uint32_t); + } + + return consumed; +} |