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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>
*/
#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_color(uint32_t opv, css_style *style,
css_select_state *state)
{
enum flag_value flag_value = getFlagValue(opv);
uint16_t value = CSS_COLOR_INHERIT;
css_color color = 0;
if (flag_value == FLAG_VALUE__NONE) {
switch (getValue(opv)) {
case COLOR_TRANSPARENT:
value = CSS_COLOR_COLOR;
break;
case COLOR_CURRENT_COLOR:
/* color: currentColor always computes to inherit */
value = CSS_COLOR_INHERIT;
flag_value = FLAG_VALUE_INHERIT;
break;
case COLOR_SET:
value = CSS_COLOR_COLOR;
color = *((css_color *) style->bytecode);
advance_bytecode(style, sizeof(color));
break;
}
}
if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,
flag_value)) {
return set_color(state->computed, value, color);
}
return CSS_OK;
}
css_error css__set_color_from_hint(const css_hint *hint,
css_computed_style *style)
{
return set_color(style, hint->status, hint->data.color);
}
css_error css__initial_color(css_select_state *state)
{
css_hint hint;
css_error error;
error = state->handler->ua_default_for_property(state->pw,
CSS_PROP_COLOR, &hint);
if (error != CSS_OK)
return error;
return css__set_color_from_hint(&hint, state->computed);
}
css_error css__copy_color(
const css_computed_style *from,
css_computed_style *to)
{
css_color color;
uint8_t type = get_color(from, &color);
if (from == to) {
return CSS_OK;
}
return set_color(to, type, color);
}
css_error css__compose_color(const css_computed_style *parent,
const css_computed_style *child,
css_computed_style *result)
{
css_color color;
uint8_t type = get_color(child, &color);
return css__copy_color(
type == CSS_COLOR_INHERIT ? parent : child,
result);
}
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