Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 92 insertions, 0 deletions

diff --git a/Source/WebCore/css/WebKitCSSKeyframeRule.cpp b/Source/WebCore/css/WebKitCSSKeyframeRule.cpp
new file mode 100644
index 000000000..23bdeca5f
--- /dev/null
+++ b/Source/WebCore/css/WebKitCSSKeyframeRule.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "WebKitCSSKeyframeRule.h"
+
+#include "CSSMutableStyleDeclaration.h"
+
+namespace WebCore {
+
+WebKitCSSKeyframeRule::WebKitCSSKeyframeRule(CSSStyleSheet* parent)
+    : CSSRule(parent, CSSRule::WEBKIT_KEYFRAME_RULE)
+{
+}
+
+WebKitCSSKeyframeRule::~WebKitCSSKeyframeRule()
+{
+    if (m_style)
+        m_style->clearParentRule();
+}
+
+String WebKitCSSKeyframeRule::cssText() const
+{
+    String result = m_key;
+
+    result += " { ";
+    result += m_style->cssText();
+    result += "}";
+
+    return result;
+}
+
+void WebKitCSSKeyframeRule::setDeclaration(PassRefPtr<CSSMutableStyleDeclaration> style)
+{
+    ASSERT(style->parentRule() == this);
+    m_style = style;
+}
+
+/* static */
+void WebKitCSSKeyframeRule::parseKeyString(const String& s, Vector<float>& keys)
+{
+    keys.clear();
+    Vector<String> strings;
+    s.split(',', strings);
+
+    for (size_t i = 0; i < strings.size(); ++i) {
+        float key = -1;
+        String cur = strings[i].stripWhiteSpace();
+
+        // For now the syntax MUST be 'xxx%' or 'from' or 'to', where xxx is a legal floating point number
+        if (cur == "from")
+            key = 0;
+        else if (cur == "to")
+            key = 1;
+        else if (cur.endsWith("%")) {
+            float k = cur.substring(0, cur.length() - 1).toFloat();
+            if (k >= 0 && k <= 100)
+                key = k/100;
+        }
+
+        if (key < 0) {
+            keys.clear();
+            return;
+        }
+        else
+            keys.append(key);
+    }
+}
+
+} // namespace WebCore