/* ***** BEGIN LICENSE BLOCK *****
 * Distributed under the BSD license:
 *
 * Copyright (c) 2010, Ajax.org B.V.
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Ajax.org B.V. nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 AJAX.ORG B.V. 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.
 *
 * ***** END LICENSE BLOCK ***** */


define(function(require, exports, module) {
"use strict";

var oop = require("../../lib/oop");
var Range = require("../../range").Range;
var BaseFoldMode = require("./fold_mode").FoldMode;

var FoldMode = exports.FoldMode = function() {};
oop.inherits(FoldMode, BaseFoldMode);

(function() {

    this.foldingStartMarker = /^(\S.*:|Searching for.*)$/;
    this.foldingStopMarker = /^(\s+|Found.*)$/;
    
    this.getFoldWidgetRange = function(session, foldStyle, row) {
        var lines = session.doc.getAllLines(row);
        var line = lines[row];
        var level1 = /^(Found.*|Searching for.*)$/;
        var level2 = /^(\S.*:|\s*)$/;
        var re = level1.test(line) ? level1 : level2;
        
        var startRow = row;
        var endRow = row;

        if (this.foldingStartMarker.test(line)) {
            for (var i = row + 1, l = session.getLength(); i < l; i++) {
                if (re.test(lines[i]))
                    break;
            }
            endRow = i;
        }
        else if (this.foldingStopMarker.test(line)) {
            for (var i = row - 1; i >= 0; i--) {
                line = lines[i];
                if (re.test(line))
                    break;
            }
            startRow = i;
        }
        if (startRow != endRow) {
            var col = line.length;
            if (re === level1)
                col = line.search(/\(Found[^)]+\)$|$/);
            return new Range(startRow, col, endRow, 0);
        }
    };
    
}).call(FoldMode.prototype);

});

