// Copyright (C) 2007 Daniel Dawson
//
// 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 2 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 can download a copy of the GNU General Public License at
// http://www.fsf.org/licensing/licenses/gpl.html or get a free printed
// copy by writing to the Free Software Foundation, Inc., 51 Franklin
// Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// --------------------------------------------------------------------
//
// This is a Greasemonkey user script.
//
// To install, you need Greasemonkey: http://www.greasespot.net/
// Then restart Firefox and revisit this script. A dialog should pop up
// asking you to confirm you really want to install the script. Click
// "install", and that's it; the next page you visit will be modified by
// the script (if it applies).
//
// To uninstall, go to Tools/Greasemonkey/Manage User Scripts,
// select "hzportal account client-side table sort", and click Uninstall.
//
// --------------------------------------------------------------------
//
// ==UserScript==
// @name hzportal account client-side table sort
// @namespace http://www.icehouse.net/ddawson/
// @description Replaces column-sort links in Horizon Information Portal (library catalog software) pages by client-side sorting code.
// @exclude *submenu=holds*
// ==/UserScript==
// NOTE: Since there is no general way to match HIP sites by URL, you must add
// an appropriate include pattern for your library's catalog system. Something
// like: http://your.library's.hip.server/ipac20/ipac.jsp*menu=account*
// TODO: handle holds submenu properly! Since it has two tables, I'll have to
// redo the code. And I don't have any holds right now. Of course, if anyone
// wants to help out, contact me at ddawson at icehouse dot net.
(function () {
var match = /&submenu=([^&]+)/.exec(document.location.href);
if (!match || !match[1]) return;
var submenu = match[1];
var itemTBody = document.evaluate(
'//table/tbody[tr/td/a[contains(@href,"&sortby=")]]',
document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
if (!itemTBody) return;
const NUMERIC_SORT = 0, DATE_SORT = 1, DOLLARS_SORT = 2, LEXICAL_SORT = 3,
TITLE_SORT = 4;
const sortKeyMap = {
'numrenewals': NUMERIC_SORT,
'ckodate': DATE_SORT,
'duedate': DATE_SORT,
'amount': DOLLARS_SORT,
'sorttitle': TITLE_SORT,
'reason': LEXICAL_SORT
};
var curHost = document.location.host;
var curSortKey =
GM_getValue(curHost + '/' + submenu + '.sortkey', undefined),
curSortReverse = GM_getValue(curHost + '/' + submenu + '.reverse', false),
curSortColIdx;
function numberCompare (a, b) {
function normalizeNumber (cell) {
var str = cell.firstChild.textContent;
return Number(str);
}
return normalizeNumber(a) - normalizeNumber(b);
}
function dateCompare (a, b) {
function normalizeDate (cell) {
var str = cell.firstChild.textContent;
var parts = str.split('/');
return parts[2] + parts[0] + parts[1];
}
var na = normalizeDate(a), nb = normalizeDate(b);
if (na < nb)
return -1;
else if (na > nb)
return 1;
else
return 0;
}
function dollarsCompare (a, b) {
function normalizeDollars (cell) {
var dac = cell.firstChild.textContent.substring(1).split('.');
return Number(dac[0]+dac[1]);
}
return normalizeDollars(a) - normalizeDollars(b);
}
function lexicalCompare (a, b) {
function normalizeString (cell) {
return cell.firstChild.textContent.toLowerCase();
}
var na = normalizeString(a), nb = normalizeString(b);
if (na < nb)
return -1;
else if (na > nb)
return 1;
else
return 0;
}
function titleCompare (a, b) {
function normalizeTitle (cell) {
var fc = cell.firstChild, tn = fc.tagName.toLowerCase(), str = null;
if (tn == 'table')
str = fc.rows[0].cells[0].firstChild.textContent;
else if (tn == 'a')
str = fc.firstChild.textContent;
else {
GM_log('Unexpected structure in cell during normalizeTitle()');
return 0;
}
str = str.replace(String.fromCharCode(0xA0), ' ');
var words = str.toLowerCase().split(' ');
if (words[0] == 'the')
words.push(words.shift());
return words;
}
var na = normalizeTitle(a), nb = normalizeTitle(b);
for (var i = 0; i < na.length && i < nb.length; i++) {
if (na[i] < nb[i])
return -1;
else if (na[i] > nb[i])
return 1;
}
if (na.length < nb.length) {
return -1;
} else if (na.length > nb.length) {
return 1;
} else
return (na.length < nb.length ? -1 : na.length > nb.length ? 1 : 0);
}
const comparatorMap = [
// Sorry, can't use symbolic names for keys (would be treated as property
// names).
numberCompare,
dateCompare,
dollarsCompare,
lexicalCompare,
titleCompare
];
function sortRows (compareCol) {
if (curSortColIdx != undefined && curSortColIdx == compareCol.idx)
curSortReverse = !curSortReverse;
else
curSortReverse = false;
curSortColIdx = compareCol.idx;
for (var rowList = [], rows = itemTBody.rows, i = 1; i < rows.length; i++)
rowList.push(rows[i]);
for each (var row in rowList) itemTBody.removeChild(row);
rowList.sort(
function (a, b) {
var cellA = a.cells[compareCol.idx],
cellB = b.cells[compareCol.idx];
if (curSortReverse) {
var t = cellA;
cellA = cellB, cellB = t;
}
var aEmpty = cellA.childNodes.length == 0,
bEmpty = cellB.childNodes.length == 0;
if (aEmpty && !bEmpty)
return -1;
else if (!aEmpty && bEmpty)
return 1;
else if (aEmpty && bEmpty)
return 0;
else
return compareCol.comparator(cellA, cellB);
});
for each (var n in rowList) itemTBody.appendChild(n);
}
var hdrCells = itemTBody.rows[0].cells;
var sortKeyIdxs = new Object();
for (var i = 0; i < hdrCells.length; i++) {
var cont = hdrCells[i].firstChild;
if (cont.tagName.toLowerCase() == 'a') {
var match = /&sortby=([^&]+)/.exec(cont.href);
if (match && match[1] in sortKeyMap) {
var sortKey = match[1];
var compareCol = {
idx: i,
sortKey: sortKey,
comparator: comparatorMap[sortKeyMap[sortKey]]
};
sortKeyIdxs[sortKey] = compareCol;
cont.href = 'javascript:void(0)';
cont.addEventListener(
'click',
(function (compareCol) { // Create unique binding for this closure.
return function () {
sortRows(compareCol);
GM_setValue(curHost + '/' + submenu + '.sortkey',
compareCol.sortKey);
GM_setValue(curHost + '/' + submenu + '.reverse',
curSortReverse);
};
})(compareCol),
false);
}
}
}
if (curSortKey) sortRows(sortKeyIdxs[curSortKey]);
})();
