1 files changed, 126 insertions, 0 deletions
diff --git a/Source/WebInspectorUI/UserInterface/SourceCodeTextRange.js b/Source/WebInspectorUI/UserInterface/SourceCodeTextRange.js
new file mode 100644
index 000000000..59bb5030d
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/SourceCodeTextRange.js
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2013 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.SourceCodeTextRange = function(sourceCode) /* textRange || startLocation, endLocation */
+{
+    WebInspector.Object.call(this);
+
+    console.assert(sourceCode instanceof WebInspector.SourceCode);
+    console.assert(arguments.length === 2 || arguments.length === 3);
+
+    this._sourceCode = sourceCode;
+
+    if (arguments.length === 2) {
+        var textRange = arguments[1];
+        console.assert(textRange instanceof WebInspector.TextRange);
+        this._startLocation = sourceCode.createSourceCodeLocation(textRange.startLine, textRange.startColumn);
+        this._endLocation = sourceCode.createSourceCodeLocation(textRange.endLine, textRange.endColumn);
+    } else {
+        console.assert(arguments[1] instanceof WebInspector.SourceCodeLocation);
+        console.assert(arguments[2] instanceof WebInspector.SourceCodeLocation);
+        this._startLocation = arguments[1];
+        this._endLocation = arguments[2];
+    }
+
+    this._startLocation.addEventListener(WebInspector.SourceCodeLocation.Event.LocationChanged, this._sourceCodeLocationChanged, this);
+    this._endLocation.addEventListener(WebInspector.SourceCodeLocation.Event.LocationChanged, this._sourceCodeLocationChanged, this);
+};
+
+WebInspector.SourceCodeTextRange.Event = {
+    RangeChanged: "source-code-text-range-range-changed"
+};
+
+WebInspector.SourceCodeTextRange.prototype = {
+    constructor: WebInspector.SourceCodeTextRange,
+
+    // Public
+
+    get sourceCode()
+    {
+        return this._sourceCode;
+    },
+
+    // Raw text range in the original source code.
+
+    get textRange()
+    {
+        var startLine = this._startLocation.lineNumber;
+        var startColumn = this._startLocation.columnNumber;
+        var endLine = this._endLocation.lineNumber;
+        var endColumn = this._endLocation.columnNumber;
+        return new WebInspector.TextRange(startLine, startColumn, endLine, endColumn);
+    },
+
+    // Formatted text range in the original source code if it is pretty printed.
+    // This is the same as the raw text range if the source code has no formatter.
+
+    get formattedTextRange()
+    {
+        var startLine = this._startLocation.formattedLineNumber;
+        var startColumn = this._startLocation.formattedColumnNumber;
+        var endLine = this._endLocation.formattedLineNumber;
+        var endColumn = this._endLocation.formattedColumnNumber;
+        return new WebInspector.TextRange(startLine, startColumn, endLine, endColumn);
+    },
+
+    // Display values:
+    //   - Mapped resource and text range locations if the original source code has a
+    //     source map and both start and end locations are in the same mapped resource.
+    //   - Otherwise this is the formatted / raw text range.
+
+    get displaySourceCode()
+    {
+        if (!this._startAndEndLocationsInSameMappedResource())
+            return this._sourceCode;
+
+        return this._startLocation.displaySourceCode;
+    },
+
+    get displayTextRange()
+    {
+        if (!this._startAndEndLocationsInSameMappedResource())
+            return this.formattedTextRange;
+
+        var startLine = this._startLocation.displayLineNumber;
+        var startColumn = this._startLocation.displayColumnNumber;
+        var endLine = this._endLocation.displayLineNumber;
+        var endColumn = this._endLocation.displayColumnNumber;
+        return new WebInspector.TextRange(startLine, startColumn, endLine, endColumn);
+    },
+
+    // Private
+
+    _startAndEndLocationsInSameMappedResource: function()
+    {
+        return this._startLocation.hasMappedLocation() && this._endLocation.hasMappedLocation() && this._startLocation.displaySourceCode === this._endLocation.displaySourceCode;
+    },
+
+    _sourceCodeLocationChanged: function(event)
+    {
+        this.dispatchEventToListeners(WebInspector.SourceCodeLocation.Event.RangeChanged);
+    }
+};
+
+WebInspector.SourceCodeTextRange.prototype.__proto__ = WebInspector.Object.prototype;