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path: root/Source/WebInspectorUI/UserInterface/Models/SourceCodeRevision.js
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/*
 * 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.SourceCodeRevision = class SourceCodeRevision extends WebInspector.Revision
{
    constructor(sourceCode, content)
    {
        super();

        console.assert(sourceCode instanceof WebInspector.SourceCode);

        this._sourceCode = sourceCode;
        this._content = content || "";
    }

    // Public

    get sourceCode()
    {
        return this._sourceCode;
    }

    get content()
    {
        return this._content;
    }

    set content(content)
    {
        content = content || "";

        if (this._content === content)
            return;

        this._content = content;

        this._sourceCode.revisionContentDidChange(this);
    }

    apply()
    {
        this._sourceCode.currentRevision = this;
    }

    revert()
    {
        this._sourceCode.currentRevision = this._sourceCode.originalRevision;
    }

    copy()
    {
        return new WebInspector.SourceCodeRevision(this._sourceCode, this._content);
    }
};