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// Copyright 2007 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview Callback object that counts matches.
*
* @author robbyw@google.com (Robby Walker)
*/
goog.provide('goog.dom.pattern.callback.Counter');
/**
* Callback class for counting matches.
* @constructor
*/
goog.dom.pattern.callback.Counter = function() {
};
/**
* The count of objects matched so far.
*
* @type {number}
*/
goog.dom.pattern.callback.Counter.prototype.count = 0;
/**
* The callback function. Suitable as a callback for
* {@link goog.dom.pattern.Matcher}.
* @type {Function}
* @private
*/
goog.dom.pattern.callback.Counter.prototype.callback_ = null;
/**
* Get a bound callback function that is suitable as a callback for
* {@link goog.dom.pattern.Matcher}.
*
* @return {Function} A callback function.
*/
goog.dom.pattern.callback.Counter.prototype.getCallback = function() {
if (!this.callback_) {
this.callback_ = goog.bind(function() {
this.count++;
return false;
}, this);
}
return this.callback_;
};
/**
* Reset the counter.
*/
goog.dom.pattern.callback.Counter.prototype.reset = function() {
this.count = 0;
};
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