digibib.net.js

{
	"translatorID": "e99bd723-39e6-418c-9524-390dbc583e08",
	"label": "digibib.net",
	"creator": "Heiko Jansen (hbz), Ingolf Kuss (hbz), Bernhard Assmann (hbz)",
	"target": "https?://.*\\.digibib\\.net/(Digibib|jumpto|metasearch|opensearch|template)",
	"minVersion": "2.1.9",
	"maxVersion": "",
	"priority": 100,
	"inRepository": true,
	"translatorType": 4,
	"browserSupport": "gcs",
	"lastUpdated": "2013-02-10 23:07:57"
}

/*
   DigiBib Translator - Custom translator for adding metadata records found
   in the DigiBib portal (http://www.digibib.net/) to Zotero

   Copyright (C) 2012 hbz NRW (http://www.hbz-nrw.de/)

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/*
 * Check if the current page really is a page with results (hits) in it.
 * Also checks for the type of results because the different lists have
 * different semantics .
 *
 **/
function detectWeb(doc, url) {
	var namespace = doc.documentElement.namespaceURI;

	var indicator = doc.evaluate('/html/body//span[@id="zotero"]', doc, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;

	var indicator_class = indicator.getAttribute('class');
	if (indicator_class.match(/multi/)) {
		// There's one or more result list each containing one or more hits in this page
		return "multiple";
	}
	if (indicator_class.match(/single/)) {
		// There's one hit in this page
		return "single";
	}

	return "";
}

/*
 * Present a list of importable hits in the current page to the user.
 * Custom code is needed to handle the different result list types.
 * Finally import the items selected by the user.
 *
 **/
function doWeb(doc, url) {
	var namespace = doc.documentElement.namespaceURI;

	var indicator = doc.evaluate('/html/body//span[@id="zotero"]', doc, null, XPathResult.ANY_TYPE, null).iterateNext();
	var indicator_class = indicator.getAttribute('class');

	var availableItems = new Object();

	var conf = new Object;
	var type = '';
	// configure the extraction method
	if (indicator_class.match(/multi/)) {
		// There's one or more result list each containing one or more hits in this page
		if (indicator_class.match(/z_metasearch_multi/)) {
			conf["lists_xpath"] = '//div[contains(@class,"listcontainer")]';
			conf["item_xpath"] = './dl[contains(@class,"list")]/dt';
			conf["item_title_xpath"] = './a';
			conf["item_url_xpath"] = 'following-sibling::dd[contains(@class,"func")]//a[contains(@class,"js_formatExport")]';
			conf["url_trnsfrm"] = function (hitUrl) {
				return hitUrl.replace(/\/direct-export/, '/format-export').replace(/FORMAT=TXT/, 'FORMAT=MODS');
			};
		} else if (indicator_class.match(/z_ezb_multi/)) {
			conf["lists_xpath"] = '//div[contains(@class,"listcontainer")]';
			conf["item_xpath"] = './dl[contains(@class,"list")]/dt';
			conf["item_title_xpath"] = './a[contains(@class,"js_getFull")]';
			conf["item_url_xpath"] = './ul/li/a[contains(@class,"js_formatExport")]';
			conf["url_trnsfrm"] = function (hitUrl) {
				return hitUrl.replace(/\/direct-export/, '/format-export').replace(/FORMAT=TXT/, 'FORMAT=MODS');
			};
		} else if (indicator_class.match(/z_digilink_multi/)) {
			conf["lists_xpath"] = '//div[contains(@class,"listcontainer")]';
			conf["item_xpath"] = './dl[contains(@class,"list")]/dt';
			conf["item_title_xpath"] = './strong';
			conf["item_url_xpath"] = 'following-sibling::dd[2]/ul/li/a[contains(@class,"js_formatExport")]';
			conf["url_trnsfrm"] = function (hitUrl) {
				return hitUrl.replace(/\/direct-export/, '/format-export').replace(/FORMAT=TXT/, 'FORMAT=MODS');
			};
		} else if (indicator_class.match(/z_dbis_multi/)) {
			conf["lists_xpath"] = '//div[contains(@class,"listcontainer")]';
			conf["item_xpath"] = './dl[contains(@class,"list")]/dt';
			conf["item_title_xpath"] = './a[contains(@class,"js_getFull")]';
			conf["item_url_xpath"] = './/a[contains(@class,"js_formatExport")]';
			conf["url_trnsfrm"] = function (hitUrl) {
				return hitUrl.replace(/\/direct-export/, '/format-export').replace(/FORMAT=TXT/, 'FORMAT=MODS');
			};
		} else if (indicator_class.match(/z_cart_multi/)) {
			conf["lists_xpath"] = '//div[contains(@class,"listcontainer")]';
			conf["item_xpath"] = './dl[contains(@class,"list")]/dt';
			conf["item_title_xpath"] = 'child::*[2]';
			conf["item_url_xpath"] = 'following-sibling::dd[contains(@class,"last")][1]//a[contains(@class,"js_formatExport")]';
			conf["url_trnsfrm"] = function (hitUrl) {
				return hitUrl.replace(/\/direct-export/, '/format-export').replace(/FORMAT=TXT/, 'FORMAT=MODS');
			};
		}
		availableItems = _get_items_multi(doc, url, namespace, conf);

		Zotero.selectItems(availableItems, function (selectedItems) {
			if (!selectedItems) return true;

			var fetchThese = new Array();
			for (var i in selectedItems) {
				fetchThese.push(i);
			}

			Zotero.Utilities.doGet(fetchThese, importItem);
			Zotero.wait();
		});
	} else if (indicator_class.match(/z_[a-z]*_single/)) {
		var urlNode = doc.evaluate('/html/body/div/div/div[@id="main"]//a[contains(@class,"js_formatExport")]', doc, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
		if (urlNode) {
			var hitUrl = urlNode.singleNodeValue.href.replace(/\/direct-export/, '/format-export').replace(/FORMAT=TXT/, 'FORMAT=MODS');
			Zotero.Utilities.doGet(hitUrl, importItem);
			Zotero.wait();
		}
	}
}

/*
 * Generic extraction of a list of records (title/url pairs) from the page
 * guided by a set of XPaths addressing the relevant html nodes.
 *
 **/
function _get_items_multi(doc, url, namespace, conf) {
	var myItems = new Object;

	// one or more lists in this page
	var listsSnapshot = doc.evaluate(
	conf["lists_xpath"], doc, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
	var isSingleEntryList = listsSnapshot.snapshotLength == 1 ? true : false;

	// walk over every list
	for (var i = 0; i < listsSnapshot.snapshotLength; i++) {
		var cur_list = listsSnapshot.snapshotItem(i);

		// get the entries in the current list
		var listEntriesSnapshot = doc.evaluate(
		conf["item_xpath"], cur_list, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

		// for every entry extract title and url and store these pairs
		// in an hash object; keys are the urls
		for (var j = 0; j < listEntriesSnapshot.snapshotLength; j++) {
			var cur_entry = listEntriesSnapshot.snapshotItem(j);
			var titleNode = doc.evaluate(
			conf["item_title_xpath"], cur_entry, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);

			var title, hitUrl;

			if (titleNode.singleNodeValue == null) {
				continue;
			}
			title = _formatTitle(isSingleEntryList, i, j, titleNode.singleNodeValue.textContent);

			var urlNode = doc.evaluate(
			conf["item_url_xpath"], cur_entry, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
			if (titleNode.singleNodeValue == null) {
				continue;
			}

			hitUrl = conf["url_trnsfrm"](urlNode.singleNodeValue.href);
			myItems[hitUrl] = title;
		}
	}

	return myItems;
}

/*
 * Shorten the title of the record if necessary and prefix it
 * with a number
 *
 **/
function _formatTitle(isSingleEntryList, num_a, num_b, text) {
	var prefix = '';
	num_a++;
	num_b++;
	if (isSingleEntryList) prefix = (num_b < 10 ? "0" + num_b : num_b) + ": ";
	else prefix = (num_a < 10 ? "0" + num_a : num_a) + "." + (num_b < 10 ? "0" + num_b : num_b) + ": ";

	text = (text.length > 80) ? text.substr(0, 77) + "..." : text;

	return prefix + text;
}

/*
 * Import a record to Zotero using the standard MODS translator.
 *
 **/
function importItem(mods, resp, url) {
	// import to zotero by relying on standard MODS translator
	var translator = Zotero.loadTranslator("import");
	translator.setTranslator("0e2235e7-babf-413c-9acf-f27cce5f059c"); // MODS-translator
	translator.setHandler("itemDone", cleanup);
	translator.setString(mods);
	translator.translate();
}

/*
 * Custom cleanup for some data fields after the MODS translator
 * has converted the records
 *
 **/
function cleanup(obj, item) {
	if (item.archiveLocation) {
		item.callNumber = item.archiveLocation;
		item.archiveLocation = "";
	}
	item.complete();
}