Selection: Logic for the flexbox properties.

1 files changed, 79 insertions, 0 deletions

diff --git a/src/select/properties/flex_basis.c b/src/select/properties/flex_basis.c
new file mode 100644
index 0000000..1a92a6b
--- /dev/null
+++ b/src/select/properties/flex_basis.c
@@ -0,0 +1,79 @@
+/*
+ * This file is part of LibCSS
+ * Licensed under the MIT License,
+ *		  http://www.opensource.org/licenses/mit-license.php
+ * Copyright 2017 Lucas Neves <lcneves@gmail.com>
+ */
+
+#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_flex_basis(uint32_t opv, css_style *style, 
+		css_select_state *state)
+{
+	uint16_t value = CSS_FLEX_BASIS_INHERIT;
+	css_fixed length = 0;
+	uint32_t unit = UNIT_PX;
+
+	if (isInherit(opv) == false) {
+		switch (getValue(opv)) {
+		case FLEX_BASIS_AUTO:
+			value = CSS_FLEX_BASIS_AUTO;
+			break;
+		case FLEX_BASIS_CONTENT:
+			value = CSS_FLEX_BASIS_CONTENT;
+			break;
+		case FLEX_BASIS_SET:
+			value = CSS_FLEX_BASIS_SET;
+			length = *((css_fixed *) style->bytecode);
+			advance_bytecode(style, sizeof(length));
+			unit = *((uint32_t *) style->bytecode);
+			advance_bytecode(style, sizeof(unit));
+			break;
+		}
+	}
+
+	unit = css__to_css_unit(unit);
+
+	if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,
+			isInherit(opv))) {
+		return set_flex_basis(state->computed, value, length, unit);
+	}
+
+	return CSS_OK;
+}
+
+css_error css__set_flex_basis_from_hint(const css_hint *hint,
+		css_computed_style *style)
+{
+	return set_flex_basis(style, hint->status,
+			hint->data.length.value, hint->data.length.unit);
+}
+
+css_error css__initial_flex_basis(css_select_state *state)
+{
+	return set_flex_basis(state->computed, CSS_FLEX_BASIS_AUTO, 0,
+			CSS_UNIT_PX);
+}
+
+css_error css__compose_flex_basis(const css_computed_style *parent,
+		const css_computed_style *child,
+		css_computed_style *result)
+{
+	css_fixed length = 0;
+	css_unit unit = CSS_UNIT_PX;
+	uint8_t type = get_flex_basis(child, &length, &unit);
+
+	if (type == CSS_FLEX_BASIS_INHERIT) {
+		type = get_flex_basis(parent, &length, &unit);
+	}
+
+	return set_flex_basis(result, type, length, unit);
+}
+