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1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31WebInspector.CodeMirrorUtils = {
32    /**
33     * @param {string} mimeType
34     * @return {function(string, function(string, string, number, number))}
35     */
36    createTokenizer: function(mimeType)
37    {
38        var mode = CodeMirror.getMode({indentUnit: 2}, mimeType);
39        var state = CodeMirror.startState(mode);
40        function tokenize(line, callback)
41        {
42            var stream = new CodeMirror.StringStream(line);
43            while (!stream.eol()) {
44                var style = mode.token(stream, state);
45                var value = stream.current();
46                callback(value, style, stream.start, stream.start + value.length);
47                stream.start = stream.pos;
48            }
49        }
50        return tokenize;
51    },
52
53    /**
54     * @param {string} tokenType
55     */
56    convertTokenType: function(tokenType)
57    {
58        if (tokenType.startsWith("js-variable") || tokenType.startsWith("js-property") || tokenType === "js-def")
59            return "javascript-ident";
60        if (tokenType === "js-string-2")
61            return "javascript-regexp";
62        if (tokenType === "js-number" || tokenType === "js-comment" || tokenType === "js-string" || tokenType === "js-keyword")
63            return "javascript-" + tokenType.substring("js-".length);
64        if (tokenType === "css-number")
65            return "css-number";
66        return null;
67    },
68
69    /**
70     * @param {string} modeName
71     * @param {string} tokenPrefix
72     */
73    overrideModeWithPrefixedTokens: function(modeName, tokenPrefix)
74    {
75        var oldModeName = modeName + "-old";
76        if (CodeMirror.modes[oldModeName])
77            return;
78
79        CodeMirror.defineMode(oldModeName, CodeMirror.modes[modeName]);
80        CodeMirror.defineMode(modeName, modeConstructor);
81
82        function modeConstructor(config, parserConfig)
83        {
84            var innerConfig = {};
85            for (var i in parserConfig)
86                innerConfig[i] = parserConfig[i];
87            innerConfig.name = oldModeName;
88            var codeMirrorMode = CodeMirror.getMode(config, innerConfig);
89            codeMirrorMode.name = modeName;
90            codeMirrorMode.token = tokenOverride.bind(null, codeMirrorMode.token);
91            return codeMirrorMode;
92        }
93
94        function tokenOverride(superToken, stream, state)
95        {
96            var token = superToken(stream, state);
97            return token ? tokenPrefix + token : token;
98        }
99    }
100}
101
102WebInspector.CodeMirrorUtils.overrideModeWithPrefixedTokens("css-base", "css-");
103WebInspector.CodeMirrorUtils.overrideModeWithPrefixedTokens("javascript", "js-");
104WebInspector.CodeMirrorUtils.overrideModeWithPrefixedTokens("xml", "xml-");
105