diff options
Diffstat (limited to 'src/select/properties/overflow.c')
-rw-r--r-- | src/select/properties/overflow.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/select/properties/overflow.c b/src/select/properties/overflow.c new file mode 100644 index 0000000..74adf45 --- /dev/null +++ b/src/select/properties/overflow.c @@ -0,0 +1,78 @@ +/* + * 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_overflow(uint32_t opv, css_style *style, + css_select_state *state) +{ + uint16_t value = CSS_OVERFLOW_INHERIT; + + UNUSED(style); + + if (isInherit(opv) == false) { + switch (getValue(opv)) { + case OVERFLOW_VISIBLE: + value = CSS_OVERFLOW_VISIBLE; + break; + case OVERFLOW_HIDDEN: + value = CSS_OVERFLOW_HIDDEN; + break; + case OVERFLOW_SCROLL: + value = CSS_OVERFLOW_SCROLL; + break; + case OVERFLOW_AUTO: + value = CSS_OVERFLOW_AUTO; + break; + } + } + + if (outranks_existing(getOpcode(opv), isImportant(opv), state, + isInherit(opv))) { + return set_overflow(state->result, value); + } + + return CSS_OK; +} + +css_error set_overflow_from_hint(const css_hint *hint, + css_computed_style *style) +{ + return set_overflow(style, hint->status); +} + +css_error initial_overflow(css_select_state *state) +{ + return set_overflow(state->result, CSS_OVERFLOW_VISIBLE); +} + +css_error compose_overflow(const css_computed_style *parent, + const css_computed_style *child, + css_computed_style *result) +{ + uint8_t type = get_overflow(child); + + if (type == CSS_OVERFLOW_INHERIT) { + type = get_overflow(parent); + } + + return set_overflow(result, type); +} + +uint32_t destroy_overflow(void *bytecode) +{ + UNUSED(bytecode); + + return sizeof(uint32_t); +} |