helpers.h

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/*
 * 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>
 */
 
#ifndef css_select_properties_helpers_h_
#define css_select_properties_helpers_h_
 
#include "select/helpers.h"
#include "select/autogenerated_computed.h"
 
uint32_t generic_destroy_color(void *bytecode);
uint32_t generic_destroy_uri(void *bytecode);
uint32_t generic_destroy_length(void *bytecode);
uint32_t generic_destroy_number(void *bytecode);
 
css_error css__cascade_bg_border_color(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t, css_color));
css_error css__cascade_uri_none(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t,
                                lwc_string *));
css_error css__cascade_border_style(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t));
css_error css__cascade_border_width(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t, css_fixed,
                                css_unit));
css_error css__cascade_length_auto(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t, css_fixed,
                                css_unit));
css_error css__cascade_length_auto_calc(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t, css_fixed_or_calc,
                                css_unit));
css_error css__cascade_length_normal(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t, css_fixed,
                                css_unit));
css_error css__cascade_length_none(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t, css_fixed,
                                css_unit));
css_error css__cascade_length(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t, css_fixed,
                                css_unit));
css_error css__cascade_number(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t, css_fixed));
css_error css__cascade_page_break_after_before_inside(uint32_t opv,
                css_style *style, css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t));
css_error css__cascade_break_after_before_inside(uint32_t opv,
                css_style *style, css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t));
css_error css__cascade_counter_increment_reset(uint32_t opv, css_style *style,
                css_select_state *state,
                css_error (*fun)(css_computed_style *, uint8_t,
                                css_computed_counter *));
 
static inline css_error css__copy_lwc_string_array(
                bool ref,
                lwc_string *const*orig,
                lwc_string ***copy_out)
{
        size_t count = 0;
        lwc_string **copy = NULL;
 
        if (orig != NULL) {
                for (lwc_string *const*i = orig; (*i) != NULL; i++) {
                        count++;
                }
 
                copy = malloc((count + 1) * sizeof(*copy));
                if (copy == NULL) {
                        return CSS_NOMEM;
                }
 
                if (ref) {
                        for (size_t i = 0; i < count; i++) {
                                copy[i] = lwc_string_ref(orig[i]);
                        }
                        copy[count] = NULL;
                } else {
                        memcpy(copy, orig, (count + 1) * sizeof(*copy));
                }
        }
 
        *copy_out = copy;
        return CSS_OK;
}
 
static inline css_error css__copy_computed_counter_array(
                bool ref,
                const css_computed_counter *orig,
                css_computed_counter **copy_out)
{
        size_t count = 0;
        css_computed_counter *copy = NULL;
 
        if (orig != NULL) {
                for (const css_computed_counter *i = orig;
                                i->name != NULL; i++) {
                        count++;
                }
 
                copy = malloc((count + 1) * sizeof(*copy));
                if (copy == NULL) {
                        return CSS_NOMEM;
                }
 
                if (ref) {
                        for (size_t i = 0; i < count; i++) {
                                copy[i].name = lwc_string_ref(orig[i].name);
                                copy[i].value = orig[i].value;
                        }
                        copy[count].name = NULL;
                        copy[count].value = 0;
                } else {
                        memcpy(copy, orig, (count + 1) * sizeof(*copy));
                }
        }
 
        *copy_out = copy;
        return CSS_OK;
}
 
static inline css_error css__copy_computed_content_item_array(
                bool ref,
                const css_computed_content_item *orig,
                css_computed_content_item **copy_out)
{
        size_t count = 0;
        css_computed_content_item *copy = NULL;
 
        if (orig != NULL) {
                for (const css_computed_content_item *i = orig;
                                i->type != CSS_COMPUTED_CONTENT_NONE; i++) {
                        count++;
                }
 
                copy = malloc((count + 1) * sizeof(*copy));
                if (copy == NULL) {
                        return CSS_NOMEM;
                }
 
                if (ref) {
                        for (size_t i = 0; i < count; i++) {
                                switch (orig[i].type) {
                                case CSS_COMPUTED_CONTENT_STRING:
                                        copy[i].data.string = lwc_string_ref(
                                                        orig[i].data.string);
                                        break;
                                case CSS_COMPUTED_CONTENT_URI:
                                        copy[i].data.uri = lwc_string_ref(
                                                        orig[i].data.uri);
                                        break;
                                case CSS_COMPUTED_CONTENT_ATTR:
                                        copy[i].data.attr = lwc_string_ref(
                                                        orig[i].data.attr);
                                        break;
                                case CSS_COMPUTED_CONTENT_COUNTER:
                                        copy[i].data.counter.name = lwc_string_ref(
                                                        orig[i].data.counter.name);
                                        copy[i].data.counter.style =
                                                        orig[i].data.counter.style;
                                        break;
                                case CSS_COMPUTED_CONTENT_COUNTERS:
                                        copy[i].data.counters.name = lwc_string_ref(
                                                        orig[i].data.counters.name);
                                        copy[i].data.counters.sep = lwc_string_ref(
                                                        orig[i].data.counters.sep);
                                        copy[i].data.counters.style =
                                                        orig[i].data.counters.style;
                                        break;
                                default:
                                        break;
                                }
                                copy[i].type = orig[i].type;
                        }
                        copy[count].type = CSS_COMPUTED_CONTENT_NONE;
                } else {
                        memcpy(copy, orig, (count + 1) * sizeof(*copy));
                }
        }
 
        *copy_out = copy;
        return CSS_OK;
}
 
#endif