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browser.js
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browser.js
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/*
* Copyright 2012 Amadeus s.a.s.
* 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.
*/
var browserMatch = require('../util/browser-detection.js').browserMatch;
/**
* @see Browser.prototype.parseBrowserConfig
* <li> Usage: </li>
* <li> Input: 'Chrome >=30 on Desktop Windows as Chrome Canary 30' </li>
* <li> Match: [1] = 'Chrome', [2] = '>=30', [3] = 'Desktop Windows', [4] = 'Chrome Canary 30' </li>
* Parts 2, 3, 4 are optional, will be undefined if not found.
*/
var _browserCfgRegex = /^\s*(\S+)(?:\s+(\W*\d\S*))?(?:\s+on\s+(.*?))?(?:\s+as\s+(.*?))?\s*$/i;
var buildNameFromConfig = function (config) {
if (config.logDisplayName) {
return config.logDisplayName;
}
var name = "";
if (config.browserName) {
name = config.browserName;
if (config.browserVersion != null) {
name += " " + config.browserVersion;
}
}
if (config.os) {
name += " (" + config.os + ")";
}
return name;
};
var Browser = function (cfgString) {
/**
* {browserName, browserVersion, os, logDisplayName}
*/
this.config = Browser.parseBrowserConfig(cfgString);
/**
* Display name for the logs
*/
this.name = buildNameFromConfig(this.config);
/**
* Contains tasks not yet dispatched.
*/
this.tasksQueue = [];
/**
* Counts tasks not yet finished. Will be always >= this.tasksQueue.length
*/
this.pendingTasks = 0;
};
Browser.prototype = {};
Browser.prototype.addTask = function (task) {
this.pendingTasks++;
this.tasksQueue.push(task);
};
Browser.prototype.hasTasks = function () {
return this.tasksQueue.length > 0;
};
Browser.prototype.takeTask = function () {
return this.tasksQueue.shift();
};
Browser.prototype.matches = function (slave) {
return browserMatch(this.config, slave.browserInfo);
};
Browser.prototype.onTaskFinished = function () {
this.pendingTasks--;
};
/**
* @static
*/
Browser.parseBrowserConfig = function (cfgString) {
if (cfgString == null || cfgString === "") {
return {}; // default, unrestricted browser
}
var match = _browserCfgRegex.exec(cfgString);
if (match === null) {
return {
browserName: "unparsable browser"
};
} else {
// Some of the entries can be undefined, it's fine.
// Note that garbage input may also produce valid match.
return {
browserName: match[1],
browserVersion: match[2],
os: match[3],
logDisplayName: match[4]
};
}
};
module.exports = Browser;