1 files changed, 73 insertions, 0 deletions
diff --git a/src/select/properties/background_attachment.c b/src/select/properties/background_attachment.c
new file mode 100644
index 0000000..807c533
--- /dev/null
+++ b/src/select/properties/background_attachment.c
@@ -0,0 +1,73 @@
+/*
+ * 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_background_attachment(uint32_t opv, css_style *style, 
+		css_select_state *state)
+{
+	uint16_t value = CSS_BACKGROUND_ATTACHMENT_INHERIT;
+
+	UNUSED(style);
+
+	if (isInherit(opv) == false) {
+		switch (getValue(opv)) {
+		case BACKGROUND_ATTACHMENT_FIXED:
+			value = CSS_BACKGROUND_ATTACHMENT_FIXED;
+			break;
+		case BACKGROUND_ATTACHMENT_SCROLL:
+			value = CSS_BACKGROUND_ATTACHMENT_SCROLL;
+			break;
+		}
+	}
+
+	if (outranks_existing(getOpcode(opv), isImportant(opv), state,
+			isInherit(opv))) {
+		return set_background_attachment(state->result, value);
+	}
+
+	return CSS_OK;
+}
+
+css_error set_background_attachment_from_hint(const css_hint *hint, 
+		css_computed_style *style)
+{
+	return set_background_attachment(style, hint->status);
+}
+
+css_error initial_background_attachment(css_select_state *state)
+{
+	return set_background_attachment(state->result, 
+			CSS_BACKGROUND_ATTACHMENT_SCROLL);
+}
+
+css_error compose_background_attachment(const css_computed_style *parent,
+		const css_computed_style *child,
+		css_computed_style *result)
+{
+	uint8_t type = get_background_attachment(child);
+
+	if (type == CSS_BACKGROUND_ATTACHMENT_INHERIT) {
+		type = get_background_attachment(parent);
+	}
+
+	return set_background_attachment(result, type);
+}
+
+uint32_t destroy_background_attachment(void *bytecode)
+{
+	UNUSED(bytecode);
+	
+	return sizeof(uint32_t);
+}