1/*
2 * Copyright (C) 2013 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26WebInspector.SourceCodeTextRange = function(sourceCode) /* textRange || startLocation, endLocation */
27{
28    WebInspector.Object.call(this);
29
30    console.assert(sourceCode instanceof WebInspector.SourceCode);
31    console.assert(arguments.length === 2 || arguments.length === 3);
32
33    this._sourceCode = sourceCode;
34
35    if (arguments.length === 2) {
36        var textRange = arguments[1];
37        console.assert(textRange instanceof WebInspector.TextRange);
38        this._startLocation = sourceCode.createSourceCodeLocation(textRange.startLine, textRange.startColumn);
39        this._endLocation = sourceCode.createSourceCodeLocation(textRange.endLine, textRange.endColumn);
40    } else {
41        console.assert(arguments[1] instanceof WebInspector.SourceCodeLocation);
42        console.assert(arguments[2] instanceof WebInspector.SourceCodeLocation);
43        this._startLocation = arguments[1];
44        this._endLocation = arguments[2];
45    }
46
47    this._startLocation.addEventListener(WebInspector.SourceCodeLocation.Event.LocationChanged, this._sourceCodeLocationChanged, this);
48    this._endLocation.addEventListener(WebInspector.SourceCodeLocation.Event.LocationChanged, this._sourceCodeLocationChanged, this);
49};
50
51WebInspector.SourceCodeTextRange.Event = {
52    RangeChanged: "source-code-text-range-range-changed"
53};
54
55WebInspector.SourceCodeTextRange.prototype = {
56    constructor: WebInspector.SourceCodeTextRange,
57
58    // Public
59
60    get sourceCode()
61    {
62        return this._sourceCode;
63    },
64
65    // Raw text range in the original source code.
66
67    get textRange()
68    {
69        var startLine = this._startLocation.lineNumber;
70        var startColumn = this._startLocation.columnNumber;
71        var endLine = this._endLocation.lineNumber;
72        var endColumn = this._endLocation.columnNumber;
73        return new WebInspector.TextRange(startLine, startColumn, endLine, endColumn);
74    },
75
76    // Formatted text range in the original source code if it is pretty printed.
77    // This is the same as the raw text range if the source code has no formatter.
78
79    get formattedTextRange()
80    {
81        var startLine = this._startLocation.formattedLineNumber;
82        var startColumn = this._startLocation.formattedColumnNumber;
83        var endLine = this._endLocation.formattedLineNumber;
84        var endColumn = this._endLocation.formattedColumnNumber;
85        return new WebInspector.TextRange(startLine, startColumn, endLine, endColumn);
86    },
87
88    // Display values:
89    //   - Mapped resource and text range locations if the original source code has a
90    //     source map and both start and end locations are in the same mapped resource.
91    //   - Otherwise this is the formatted / raw text range.
92
93    get displaySourceCode()
94    {
95        if (!this._startAndEndLocationsInSameMappedResource())
96            return this._sourceCode;
97
98        return this._startLocation.displaySourceCode;
99    },
100
101    get displayTextRange()
102    {
103        if (!this._startAndEndLocationsInSameMappedResource())
104            return this.formattedTextRange;
105
106        var startLine = this._startLocation.displayLineNumber;
107        var startColumn = this._startLocation.displayColumnNumber;
108        var endLine = this._endLocation.displayLineNumber;
109        var endColumn = this._endLocation.displayColumnNumber;
110        return new WebInspector.TextRange(startLine, startColumn, endLine, endColumn);
111    },
112
113    // Private
114
115    _startAndEndLocationsInSameMappedResource: function()
116    {
117        return this._startLocation.hasMappedLocation() && this._endLocation.hasMappedLocation() && this._startLocation.displaySourceCode === this._endLocation.displaySourceCode;
118    },
119
120    _sourceCodeLocationChanged: function(event)
121    {
122        this.dispatchEventToListeners(WebInspector.SourceCodeLocation.Event.RangeChanged);
123    }
124};
125
126WebInspector.SourceCodeTextRange.prototype.__proto__ = WebInspector.Object.prototype;
127