在下载列表中增加magnet列和torrent列
// ==UserScript==
// @name Dmhy Download Enhance
// @namespace kind.stranger
// @version 0.2.2
// @description 在下载列表中增加magnet列和torrent列
// @include http*://share.dmhy.org/
// @include http*://share.dmhy.org/topics/list*
// @grant none
// @author Anonymous
// @license GPL version 3 (http://www.gnu.org/licenses/gpl.txt)
// ==/UserScript==
if (window.jQuery) {
var $ = window.jQuery;
} else {
console.log('Do Not support jQuery');
return false;
}
$.fn.tagNameLowerCase = function() {
return this.prop ? this.prop('tagName').toLowerCase() : this.attr('tagName').toLowerCase();
}
// http://99jty.com/?p=587
// http://ejohn.org/blog/comparing-document-position/
if (!$.contains) {
$.contains = function(a, b) {
return a.contains ? a != b && a.contains(b) : !!(a.compareDocumentPosition(b) & 16);
};
}
var basePage = {};
basePage = (function() {
var torrentList = $('#topic_list');
var torrentRows = torrentList.find('tr');
var theadRows = torrentList.find('>thead tr');
var tbodyRows = torrentList.find('>tbody tr');
var thead = torrentList.find('>thead');
var tbody = torrentList.find('>tbody');
/**
* Get the current <tr> of the first element in the set
* @param target DOM or jQuery object(s)
* @return currentRow A jQuery object
*/
function getCurrentRow(target) {
var $ele = $($(target)[0]);
if (!$.contains(thead[0], $ele[0]) &&
!$.contains(tbody[0], $ele[0])) {
return false;
}
if ($ele.tagNameLowerCase() === 'tr') {
return $ele;
}
var currentRow = $ele.parent();
while (currentRow.tagNameLowerCase() !== 'tr') {
currentRow = currentRow.parent();
}
return currentRow;
}
/**
* Get the title <td> of the first element in the set
* @param target DOM or jQuery object(s)
* @return titleCol A jQuery object
*/
// TODO : a more reasonable way to find col
function getTitleCol(target) {
var $row = getCurrentRow(target);
if (!$row) {
return false;
}
return $row.find('>:eq(2)');
}
/**
* Get the magnet <td> of the first element in the set
* @param target DOM or jQuery object(s)
* @return magnetCol A jQuery object
*/
// TODO : a more reasonable way to find col
function getMagnetCol(target) {
var $row = getCurrentRow(target);
if (!$row) {
return false;
}
return $row.find('>:eq(3)');
}
/**
* Get the title anchor's link of the first element in the set
* @param target DOM or jQuery object(s)
* @return link String
*/
function getTitleLink(target) {
var $title = getTitleCol(target);
if (!$title ||
!$title.hasClass('title')) {
return false;
}
return $title.find('a[href ^= "/topics/view/"][href $= ".html"]').attr('href');
}
return {
//property
'torrentList' : torrentList,
'torrentRows' : torrentRows,
'theadRows' : theadRows,
'tbodyRows' : tbodyRows,
//method
'getCurrentRow' : getCurrentRow,
'getTitleCol' : getTitleCol,
'getMagnetCol' : getMagnetCol,
'getTitleLink' : getTitleLink,
};
})();
var preparePage = {};
preparePage =(function() {
var bp = basePage;
var theadRows = bp.theadRows;
var tbodyRows = bp.tbodyRows;
var torrentRows = bp.torrentRows;
var exists = { // module existence
'torrent' : false,
'magnet' : false,
};
function exist(search) {
if (search in exists) {
return exists[search];
} else {
return false;
}
}
// module: Appearance Components
/**
* Add a new Magnet Column
*/
function addMagnetCol() {
var magnetTitle = bp.getMagnetCol(theadRows).clone();
$(magnetTitle).attr('id', 'magnetTitle');
$(magnetTitle).find(':first-child').text('Magnet');
var magnetArrow = bp.getMagnetCol(tbodyRows).clone();
$(magnetArrow).addClass('dde-magnet');
$(magnetArrow).find(':first-child')
.attr('href', '#')
.attr('title', 'Magnet')
.text('M');
torrentRows.each(function(index) {
var oldMagnetCol = bp.getMagnetCol(this);
if (index === 0) {
oldMagnetCol.after(magnetTitle);
} else {
oldMagnetCol.after(magnetArrow.clone());
}
});
exists.magnet = true;
return true;
}
/**
* Add a new Torrent Column
*/
function addTorrentCol() {
var torrentTitle = bp.getMagnetCol(theadRows).clone();
$(torrentTitle).attr('id', 'torrentTitle');
$(torrentTitle).find(':first-child').text('Torrent');
var torrentArrow = bp.getMagnetCol(tbodyRows).clone();
$(torrentArrow).addClass('dde-torrent');
$(torrentArrow).find(':first-child')
.attr('href', '#')
.attr('title', 'Torrent')
.text('T');
torrentRows.each(function(index) {
var oldMagnetCol = bp.getMagnetCol(this);
if (index === 0) {
oldMagnetCol.after(torrentTitle);
} else {
oldMagnetCol.after(torrentArrow.clone());
}
});
exists.torrent = true;
return true;
}
/**
* Get the newadd-magnet <td> of the first element in the set
* @param target DOM or jQuery object(s)
* @return newaddMagnetCol A jQuery object
*/
function getMagnetCol(target) {
if (!exist('magnet')) {
return false;
}
var $row = bp.getCurrentRow(target);
if (!$row) {
return false;
}
return $row.find('> .dde-magnet') ?
$row.find('> .dde-magnet') :
$row.find('#magnetTitle');
}
/**
* Get the newadd-torrent <td> of the first element in the set
* @param target DOM or jQuery object(s)
* @return newaddTorrentCol A jQuery object
*/
function getTorrentCol(target) {
if (!exist('torrent')) {
return false;
}
var $row = bp.getCurrentRow(target);
if (!$row) {
return false;
}
return $row.find('> .dde-torrent') ?
$row.find('> .dde-torrent') :
$row.find('#torrentTitle');
}
/**
* Get the newadd-torrent's download arrow(<a>) of the first element in the set
* @param target DOM or jQuery object(s)
* @return newaddTorrentArrow A jQuery object
*/
function getTorrentArrow(target) {
var torrrentCol = getTorrentCol(target);
if (!torrrentCol ||
!torrrentCol.hasClass('dde-torrent')) {
return false;
}
return torrrentCol.find(':first-child');
}
/**
* Get the newadd-magnet's download arrow(<a>) of the first element in the set
* @param target DOM or jQuery object(s)
* @return newaddMagnetArrow A jQuery object
*/
function getMagnetArrow(target) {
var magnetCol = getMagnetCol(target);
if (!magnetCol ||
!magnetCol.hasClass('dde-magnet')) {
return false;
}
return magnetCol.find(':first-child');
}
/**
* Get or set the newadd-magnet's href attribute of the first element in the set
* @param target DOM or jQuery object(s), specify which magnetAnchor to find
* @param href A value to set for magnet's "href" attribute
* @return
*/
function magnetHref(target, href) {
var magnetAnchor = getMagnetArrow(target);
if (!magnetAnchor) {
return false;
}
if (href === undefined) {
return magnetAnchor.attr('href');
} else {
magnetAnchor.attr('href', href);
}
return true;
}
/**
* Get or set the newadd-torrent's href attribute of the first element in the set
* @param target DOM or jQuery object(s), specify which torrentAnchor to find
* @param css object literal to set css
* @return
*/
function torrentHref(target, href) {
var torrentAnchor = getTorrentArrow(target);
if (!torrentAnchor) {
return false;
}
if (href === undefined) {
return torrentAnchor.attr('href');
} else {
torrentAnchor.attr('href', href);
}
return true;
}
/**
* Get or set the newadd-torrent's css of the first element in the set
* @param target DOM or jQuery object(s), specify which torrentAnchor to find
* @param css object literal to set css
* @return
*/
function setTorrentCss(target, style) {
var torrentArrow = getTorrentArrow(target);
if (!torrentArrow ||
!torrentArrow.hasClass('arrow-magnet')) {
return false;
}
torrentArrow.css(style);
return true;
}
/**
* Get or set the newadd-magnet's css of the first element in the set
* @param target DOM or jQuery object(s), specify which magnetAnchor to find
* @param css object literal to set css
* @return
*/
function setMagnetCss(target, style) {
var magnetArrow = getMagnetArrow(target);
if (!magnetArrow ||
!magnetArrow.hasClass('arrow-magnet')) {
return false;
}
magnetArrow.css(style);
return true;
}
// var torrentArrows = $('.dde-torrent > a'); WRONG: if <code>addTorrentCol</code> is not execute first, this will get an empty object
function getTorrentTitle() {
return exist('torrent') ? $('#torrentTitle') : false;
}
function getMagnetTitle() {
return exist('magnet') ? $('#magnetTitle') : false;
}
function getTorrentArrows() {
return exist('torrent') ? $('.dde-torrent > a') : false;
}
function getMagnetArrows() {
return exist('magnet') ? $('.dde-magnet > a') : false;
}
return {
//module
'addTorrentCol' : addTorrentCol,
'addMagnetCol' : addMagnetCol,
// getter
'getTorrentTitle' : getTorrentTitle,
'getMagnetTitle' : getMagnetTitle,
'getTorrentArrows' : getTorrentArrows,
'getMagnetArrows' : getMagnetArrows,
//method
'getMagnetCol' : getMagnetCol,
'getTorrentCol' : getTorrentCol,
'getTorrentArrow' : getTorrentArrow,
'getMagnetArrow' : getMagnetArrow,
'magnetHref' : magnetHref,
'torrentHref' : torrentHref,
'setTorrentCss' : setTorrentCss,
'setMagnetCss' : setMagnetCss,
};
})();
var prepaerEvent = {};
prepaerEvent = (function() {
var bp = basePage;
var pp = preparePage;
// origin css: background: url("/images/icons.gif") no-repeat scroll -17px -40px rgba(0, 0, 0, 0);
var SuccCss = {
'background-position' : '0px -40px',
}
var FailCss = {
'background-position' : '-34px -40px',
}
function responsedataToTorrentLink(data) {
var reg = /dl\.dmhy\.org.*\.torrent/;
var matchs = reg.exec(data);
var torrentLink = 'http://' + matchs[0];
return matchs[0] ? torrentLink : '';
}
function hashTomagnetLink(hash) {
var magnetLink = 'magnet:?xt=urn:btih:' + hash
return hash ? magnetLink : '';
}
function torrentLinkToHash(torrentLink) {
var hashStart = torrentLink.lastIndexOf('/');
var hashEnd = torrentLink.lastIndexOf('.');
var hash = torrentLink.slice(hashStart + 1, hashEnd);
return hash ? hash : '';
}
/**
* onmouseover:
* change torrent link if exist and is NOT changed
* TRY to change magnet link if exist
* change css after change link successfully
*/
function addTorrentMouseOver() {
var torrentArrows = pp.getTorrentArrows();
if (!torrentArrows) {
return false;
}
torrentArrows.mouseover(function(event) {
var target = this;
if (!pp.torrentHref(target) ||
pp.torrentHref(target) !== '#') { // not a valid target OR torrent link is set
return;
}
var requestLink = bp.getTitleLink(target);
if (!requestLink) {
return false;
}
// every time a ajax response is received, program will TRY to process BOTH magnet AND torrent link
$.get(requestLink, function(data) {
var torrentLink = responsedataToTorrentLink(data);
if (! torrentLink) {return;}
pp.torrentHref(target, torrentLink) && pp.setTorrentCss(target, SuccCss);
if (pp.magnetHref(target) &&
pp.magnetHref(target) === '#') {
var magnetLink = hashTomagnetLink(torrentLinkToHash(torrentLink));
if (!magnetLink) {return false;}
pp.magnetHref(target, magnetLink) && pp.setMagnetCss(target, SuccCss);
}
});
event.stopPropagation();
});
}
/**
* onmouseover:
* change magnet link if exist and is NOT changed
* TRY to change torrent link if exist
* change css after change link successfully
*/
function addMagnetMouseOver() {
var magnetArrows = pp.getMagnetArrows();
if (!magnetArrows) {
return false;
}
magnetArrows.mouseover(function(event) {
var target = this;
if (!pp.magnetHref(target) ||
pp.magnetHref(target) !== '#') { //not a valid target OR magnet link is set
return ;
}
var requestLink = bp.getTitleLink(target);
if (!requestLink) {
return false;
}
// every time a ajax response is received, program will TRY to process BOTH magnet AND torrent link
$.get(requestLink, function(data) {
var torrentLink = responsedataToTorrentLink(data);
var magnetLink = hashTomagnetLink(torrentLinkToHash(torrentLink));
if (!torrentLink || !magnetLink) {return false;}
pp.magnetHref(target, magnetLink) && pp.setMagnetCss(target, SuccCss);
if (pp.torrentHref(target) &&
pp.torrentHref(target) === '#') {
pp.torrentHref(target, torrentLink) && pp.setTorrentCss(target, SuccCss);
}
});
event.stopPropagation();
});
}
return {
'addTorrentMouseOver' : addTorrentMouseOver,
'addMagnetMouseOver' : addMagnetMouseOver,
}
})();
// TODO add configuration options and a controller
$(document).ready(function() {
preparePage.addTorrentCol();
preparePage.addMagnetCol();
prepaerEvent.addTorrentMouseOver();
prepaerEvent.addMagnetMouseOver();
});