/*
 * 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_color(uint32_t opv, css_style *style, 
		css_select_state *state)
{
	uint16_t value = CSS_COLOR_INHERIT;
	css_color color = 0;

	if (isInherit(opv) == false) {
		value = CSS_COLOR_COLOR;
		color = *((css_color *) style->bytecode);
		advance_bytecode(style, sizeof(color));
	}

	if (outranks_existing(getOpcode(opv), isImportant(opv), state,
			isInherit(opv))) {
		return set_color(state->computed, value, color);
	}

	return CSS_OK;
}

css_error set_color_from_hint(const css_hint *hint, 
		css_computed_style *style)
{
	return set_color(style, hint->status, hint->data.color);
}

css_error 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 set_color_from_hint(&hint, state->computed);
}

css_error 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);

	if (type == CSS_COLOR_INHERIT) {
		type = get_color(parent, &color);
	}

	return set_color(result, type, color);
}

uint32_t destroy_color(void *bytecode)
{
	return generic_destroy_color(bytecode);
}