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/*
* This file is part of LibCSS
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
* Copyright 2017 Lucas Neves <lcneves@gmail.com>
*/
#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 css__cascade_order(uint32_t opv, css_style *style,
css_select_state *state)
{
uint16_t value = CSS_ORDER_INHERIT;
css_fixed order = 0;
if (hasFlagValue(opv) == false) {
switch (getValue(opv)) {
case ORDER_SET:
value = CSS_ORDER_SET;
order = FIXTOINT(*((css_fixed *) style->bytecode));
advance_bytecode(style, sizeof(order));
break;
case ORDER_CALC:
advance_bytecode(style, sizeof(unit));
advance_bytecode(style, sizeof(unit)); // TODO
return CSS_OK;
default:
assert(0 && "Invalid value");
break;
}
}
if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,
getFlagValue(opv))) {
return set_order(state->computed, value, order);
}
return CSS_OK;
}
css_error css__set_order_from_hint(const css_hint *hint,
css_computed_style *style)
{
return set_order(style, hint->status, hint->data.integer);
}
css_error css__initial_order(css_select_state *state)
{
return set_order(state->computed, CSS_ORDER_SET, 0);
}
css_error css__copy_order(
const css_computed_style *from,
css_computed_style *to)
{
int32_t order = 0;
uint8_t type = get_order(from, &order);
if (from == to) {
return CSS_OK;
}
return set_order(to, type, order);
}
css_error css__compose_order(const css_computed_style *parent,
const css_computed_style *child,
css_computed_style *result)
{
int32_t order = 0;
uint8_t type = get_order(child, &order);
return css__copy_order(
type == CSS_ORDER_INHERIT ? parent : child,
result);
}
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