page.js
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/*!
* Casper is a navigation utility for PhantomJS.
*
* Documentation: http://casperjs.org/
* Repository: http://github.com/n1k0/casperjs
*
* Copyright (c) 2011-2012 Nicolas Perriault
*
* Part of source code is Copyright Joyent, Inc. and other Node contributors.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
/*global CasperError console exports phantom require*/
var utils = require('utils');
var f = utils.format;
/**
* Child pages container. Implements Array prototype.
*
*/
var ChildPages = function ChildPages(){};
exports.ChildPages = ChildPages;
ChildPages.prototype = [];
/**
* Finds a child page matching the provided information. Information can be:
*
* - RegExp: matching page url
* - String: strict page url value
* - WebPage: a direct WebPage instance
*
* @param Mixed pageInfo
* @return WebPage
*/
ChildPages.prototype.find = function find(pageInfo) {
"use strict";
var childPage, type = utils.betterTypeOf(pageInfo);
switch (type) {
case "regexp":
childPage = this.findByRegExp(pageInfo);
break;
case "string":
childPage = this.findByURL(pageInfo);
break;
case "qtruntimeobject": // WebPage
childPage = pageInfo;
if (!utils.isWebPage(childPage) || !this.some(function(activePage) {
return activePage.id === childPage.id;
})) {
throw new CasperError("Invalid or missing child page.");
}
break;
default:
throw new CasperError(f("Invalid pageInfo type: %s.", type));
}
return childPage;
};
/**
* Finds the first child page which url matches a given RegExp.
*
* @param RegExp regexp
* @return WebPage
*/
ChildPages.prototype.findByRegExp = function findByRegExp(regexp) {
"use strict";
var childPage = this.filter(function(activePage) {
return regexp.test(activePage.url);
})[0];
if (!childPage) {
throw new CasperError(f("Couldn't find child page with url matching pattern %s", regexp));
}
return childPage;
};
/**
* Finds the first child page matching a given url.
*
* @param String url The child WebPage url
* @return WebPage
*/
ChildPages.prototype.findByURL = function findByURL(url) {
"use strict";
var childPage = this.filter(function(activePage) {
return activePage.url === url;
})[0];
if (!childPage) {
throw new CasperError(f("Couldn't find child page with url %s", url));
}
return childPage;
};