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author | Michael Drake <tlsa@netsurf-browser.org> | 2014-06-01 18:32:37 +0100 |
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committer | Michael Drake <tlsa@netsurf-browser.org> | 2014-06-01 18:32:37 +0100 |
commit | c6d7f24987a90bc61e408c4249a6a212276b4174 (patch) | |
tree | 75a3f5478618e0e583db6f168193e7645c012dda /src/select/properties/overflow_x.c | |
parent | 89a4d061a46490d5fad3792a565a1a0114c400e0 (diff) | |
download | libcss-c6d7f24987a90bc61e408c4249a6a212276b4174.tar.gz libcss-c6d7f24987a90bc61e408c4249a6a212276b4174.tar.bz2 |
Add support for CSS3 overflow-x and overflow-y properties.
Now, overflow is a shorthand property setting both overflow-x and
overflow-y.
The getter for the computed overflow has been removed, and replaced
with two for overflow-x and overflow-y.
Diffstat (limited to 'src/select/properties/overflow_x.c')
-rw-r--r-- | src/select/properties/overflow_x.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/select/properties/overflow_x.c b/src/select/properties/overflow_x.c new file mode 100644 index 0000000..0173f5a --- /dev/null +++ b/src/select/properties/overflow_x.c @@ -0,0 +1,72 @@ +/* + * 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_overflow_x(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 (css__outranks_existing(getOpcode(opv), isImportant(opv), state, + isInherit(opv))) { + return set_overflow_x(state->computed, value); + } + + return CSS_OK; +} + +css_error css__set_overflow_x_from_hint(const css_hint *hint, + css_computed_style *style) +{ + return set_overflow_x(style, hint->status); +} + +css_error css__initial_overflow_x(css_select_state *state) +{ + return set_overflow_x(state->computed, CSS_OVERFLOW_VISIBLE); +} + +css_error css__compose_overflow_x(const css_computed_style *parent, + const css_computed_style *child, + css_computed_style *result) +{ + uint8_t type = get_overflow_x(child); + + if (type == CSS_OVERFLOW_INHERIT) { + type = get_overflow_x(parent); + } + + return set_overflow_x(result, type); +} + |