Selection: Logic for the flexbox properties.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/select/properties/flex_shrink.c b/src/select/properties/flex_shrink.c
new file mode 100644
index 0000000..d1acd2a
--- /dev/null
+++ b/src/select/properties/flex_shrink.c
@@ -0,0 +1,62 @@
+/*
+ * 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_shrink(uint32_t opv, css_style *style, 
+		css_select_state *state)
+{
+	uint16_t value = CSS_FLEX_SHRINK_INHERIT;
+	css_fixed flex_shrink = 0;
+
+	if (isInherit(opv) == false) {
+		value = CSS_FLEX_SHRINK_SET;
+
+		flex_shrink = *((css_fixed *) style->bytecode);
+		advance_bytecode(style, sizeof(flex_shrink));
+	}
+
+	if (css__outranks_existing(getOpcode(opv), isImportant(opv), state,
+			isInherit(opv))) {
+		return set_flex_shrink(state->computed, value, flex_shrink);
+	}
+
+	return CSS_OK;
+}
+
+css_error css__set_flex_shrink_from_hint(const css_hint *hint,
+		css_computed_style *style)
+{
+	return set_flex_shrink(style, hint->status, hint->data.fixed);
+}
+
+css_error css__initial_flex_shrink(css_select_state *state)
+{
+	return set_flex_shrink(state->computed, CSS_FLEX_SHRINK_SET, INTTOFIX(1));
+}
+
+css_error css__compose_flex_shrink(const css_computed_style *parent,
+		const css_computed_style *child,
+		css_computed_style *result)
+{
+	css_fixed flex_shrink = 0;
+	uint8_t type = get_flex_shrink(child, &flex_shrink);
+
+	if (type == CSS_FLEX_SHRINK_INHERIT) {
+		type = get_flex_shrink(parent, &flex_shrink);
+	}
+
+	return set_flex_shrink(result, type, flex_shrink);
+}
+