1 files changed, 124 insertions, 0 deletions
diff --git a/Source/WebCore/inspector/front-end/CSSCompletions.js b/Source/WebCore/inspector/front-end/CSSCompletions.js
new file mode 100644
index 0000000..e8d7556
--- /dev/null
+++ b/Source/WebCore/inspector/front-end/CSSCompletions.js
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2010 Nikita Vasilyev. All rights reserved.
+ * Copyright (C) 2010 Joseph Pecoraro. All rights reserved.
+ * Copyright (C) 2010 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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.
+ */
+
+WebInspector.CSSCompletions = function(values)
+{
+    this._values = values.slice();
+    this._values.sort();
+}
+
+WebInspector.CSSCompletions.prototype = {
+    startsWith: function(prefix)
+    {
+        var firstIndex = this._firstIndexOfPrefix(prefix);
+        if (firstIndex === -1)
+            return [];
+
+        var results = [];
+        while (this._values[firstIndex].indexOf(prefix) === 0)
+            results.push(this._values[firstIndex++]);
+        return results;
+    },
+
+    firstStartsWith: function(prefix)
+    {
+        var foundIndex = this._firstIndexOfPrefix(prefix);
+        return (foundIndex === -1 ? "" : this._values[foundIndex]);
+    },
+
+    _firstIndexOfPrefix: function(prefix)
+    {
+        if (!prefix)
+            return -1;
+        if (!this._values.length)
+            return -1;
+
+        var maxIndex = this._values.length - 1;
+        var minIndex = 0;
+        var foundIndex;
+
+        do {
+            var middleIndex = (maxIndex + minIndex) >> 1;
+            if (this._values[middleIndex].indexOf(prefix) === 0) {
+                foundIndex = middleIndex;
+                break;
+            }
+            if (this._values[middleIndex] < prefix)
+                minIndex = middleIndex + 1;
+            else
+                maxIndex = middleIndex - 1;
+        } while (minIndex <= maxIndex);
+
+        if (foundIndex === undefined)
+            return -1;
+
+        while (foundIndex && this._values[foundIndex - 1].indexOf(prefix) === 0)
+            foundIndex--;
+
+        return foundIndex;
+    },
+
+    keySet: function()
+    {
+        return this._values.keySet();
+    },
+
+    next: function(str, prefix)
+    {
+        return this._closest(str, prefix, 1);
+    },
+
+    previous: function(str, prefix)
+    {
+        return this._closest(str, prefix, -1);
+    },
+
+    _closest: function(str, prefix, shift)
+    {
+        if (!str)
+            return "";
+
+        var index = this._values.indexOf(str);
+        if (index === -1)
+            return "";
+
+        if (!prefix) {
+            index = (index + this._values.length + shift) % this._values.length;
+            return this._values[index];
+        }
+
+        var propertiesWithPrefix = this.startsWith(prefix);
+        var j = propertiesWithPrefix.indexOf(str);
+        j = (j + propertiesWithPrefix.length + shift) % propertiesWithPrefix.length;
+        return propertiesWithPrefix[j];
+    }
+}