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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_writing_mode(uint32_t opv, css_style *style,
css_select_state *state)
{
bool inherit = isInherit(opv);
uint16_t writing_mode = CSS_WRITING_MODE_INHERIT;
UNUSED(style);
if (inherit == false) {
switch (getValue(opv)) {
case WRITING_MODE_HORIZONTAL_TB:
writing_mode = CSS_WRITING_MODE_HORIZONTAL_TB;
break;
case WRITING_MODE_VERTICAL_RL:
writing_mode = CSS_WRITING_MODE_VERTICAL_RL;
break;
case WRITING_MODE_VERTICAL_LR:
writing_mode = CSS_WRITING_MODE_VERTICAL_LR;
break;
}
}
if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,
inherit)) {
return set_writing_mode(state->computed, writing_mode);
}
return CSS_OK;
}
css_error css__set_writing_mode_from_hint(const css_hint *hint,
css_computed_style *style)
{
return set_writing_mode(style, hint->status);
}
css_error css__initial_writing_mode(css_select_state *state)
{
return set_writing_mode(state->computed,
CSS_WRITING_MODE_HORIZONTAL_TB);
}
css_error css__compose_writing_mode(const css_computed_style *parent,
const css_computed_style *child,
css_computed_style *result)
{
uint8_t writing_mode = get_writing_mode(child);
if (writing_mode == CSS_WRITING_MODE_INHERIT) {
writing_mode = get_writing_mode(parent);
}
return set_writing_mode(result, writing_mode);
}
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