1 files changed, 149 insertions, 0 deletions
diff --git a/Source/WebInspectorUI/UserInterface/Models/ResourceQueryResult.js b/Source/WebInspectorUI/UserInterface/Models/ResourceQueryResult.js
new file mode 100644
index 000000000..c2bf09d37
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Models/ResourceQueryResult.js
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2016 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 INC. AND ITS 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 APPLE INC. OR ITS 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.ResourceQueryResult = class QueryResult extends WebInspector.Object
+{
+    constructor(resource, matches, cookie)
+    {
+        console.assert(matches.length, "Query matches list can't be empty.");
+
+        super();
+
+        this._resource = resource;
+        this._matches = matches;
+        this._cookie = cookie || null;
+    }
+
+    // Public
+
+    get resource() { return this._resource; }
+    get cookie() { return this._cookie; }
+
+    get rank()
+    {
+        if (this._rank === undefined)
+            this._calculateRank();
+
+        return this._rank;
+    }
+
+    get matchingTextRanges()
+    {
+        if (!this._matchingTextRanges)
+            this._matchingTextRanges = this._createMatchingTextRanges();
+
+        return this._matchingTextRanges;
+    }
+
+    // Private
+
+    _calculateRank()
+    {
+        const normalWeight = 10;
+        const consecutiveWeight = 5;
+        const specialMultiplier = 5;
+
+        function getMultiplier(match) {
+            if (match.type === WebInspector.ResourceQueryMatch.Type.Special)
+                return specialMultiplier;
+
+            return 1;
+        }
+
+        this._rank = 0;
+
+        let previousMatch = null;
+        let consecutiveMatchStart = null;
+        for (let match of this._matches) {
+            this._rank += normalWeight * getMultiplier(match);
+
+            let consecutive = previousMatch && previousMatch.index === match.index - 1;
+            if (consecutive) {
+                if (!consecutiveMatchStart)
+                    consecutiveMatchStart = previousMatch;
+
+                // If the first match in this consecutive series was a special character, give a
+                // bonus (more likely to match a specific word in the text).  Otherwise, multiply
+                // by the current length of the consecutive sequence (gives priority to fewer
+                // longer sequences instead of more short sequences).
+                this._rank += consecutiveWeight * getMultiplier(consecutiveMatchStart) * (match.index - consecutiveMatchStart.index);
+            } else if (consecutiveMatchStart)
+                consecutiveMatchStart = null;
+
+            previousMatch = match;
+
+            // The match index is deducted from the total rank, so matches that occur closer to
+            // the beginning of the string are ranked higher.  Increase the amount subtracted if
+            // the match is special, so as to favor matches towards the beginning of the string.
+            if (!consecutive)
+                this._rank -= match.index * getMultiplier(match);
+        }
+    }
+
+    _createMatchingTextRanges()
+    {
+        if (!this._matches.length)
+            return [];
+
+        let ranges = [];
+        let startIndex = this._matches[0].index;
+        let endIndex = startIndex;
+        for (let i = 1; i < this._matches.length; ++i) {
+            let match = this._matches[i];
+
+            // Increment endIndex for consecutive match.
+            if (match.index === endIndex + 1) {
+                endIndex++;
+                continue;
+            }
+
+            // Begin a new range when a gap between this match and the previous match is found.
+            ranges.push(new WebInspector.TextRange(0, startIndex, 0, endIndex + 1));
+            startIndex = match.index;
+            endIndex = startIndex;
+        }
+
+        ranges.push(new WebInspector.TextRange(0, startIndex, 0, endIndex + 1));
+        return ranges;
+    }
+
+    // Testing
+
+    __test_createMatchesMask()
+    {
+        let filename = this._resource.displayName;
+        let lastIndex = -1;
+        let result = "";
+
+        for (let match of this._matches) {
+            let gap = " ".repeat(match.index - lastIndex - 1);
+            result += gap;
+            result += filename[match.index];
+            lastIndex = match.index;
+        }
+
+        return result;
+    }
+};