big-moving.ru/api/soft/ajaxorg/lib/ace/search_highlight.js

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2022-06-24 15:29:23 +05:00
/* ***** 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 lang = require("./lib/lang");
var oop = require("./lib/oop");
var Range = require("./range").Range;
var SearchHighlight = function(regExp, clazz, type) {
this.setRegexp(regExp);
this.clazz = clazz;
this.type = type || "text";
};
(function() {
// needed to prevent long lines from freezing the browser
this.MAX_RANGES = 500;
this.setRegexp = function(regExp) {
if (this.regExp+"" == regExp+"")
return;
this.regExp = regExp;
this.cache = [];
};
this.update = function(html, markerLayer, session, config) {
if (!this.regExp)
return;
var start = config.firstRow, end = config.lastRow;
for (var i = start; i <= end; i++) {
var ranges = this.cache[i];
if (ranges == null) {
ranges = lang.getMatchOffsets(session.getLine(i), this.regExp);
if (ranges.length > this.MAX_RANGES)
ranges = ranges.slice(0, this.MAX_RANGES);
ranges = ranges.map(function(match) {
return new Range(i, match.offset, i, match.offset + match.length);
});
this.cache[i] = ranges.length ? ranges : "";
}
for (var j = ranges.length; j --; ) {
markerLayer.drawSingleLineMarker(
html, ranges[j].toScreenRange(session), this.clazz, config);
}
}
};
}).call(SearchHighlight.prototype);
exports.SearchHighlight = SearchHighlight;
});