/* add digg control
* version 0.9
* Copyright (c) 2007, Daniel Einspanjer
* License: Creative Commons "Attribution-ShareAlike 2.0"
* http://creativecommons.org/licenses/by-sa/2.0/
*
* A significant portion of this code (the layout of the widget
* and the Drag class) were copied from a nice looking greasemonkey script
* by the name of 'book-burro' by Johan Sundström and others. Thanks guys!
* http://userscripts.org/scripts/show/1859
*/
// ==UserScript==
// @name Add Digg Control
// @namespace http://www.yipyip.com/firefox/index.html
// @description Attempts to add a digg this control to any article accessed from digg.com
// @identifier http://userscripts.org/scripts/source/7883
// @author Daniel Einspanjer
// @version 0.9
// @source http://userscripts.org/scripts/source/7883.user.js
// @include http://*digg.com/*
// @include http://duggmirror.com/*
// @include *#digg_link=*
// ==/UserScript==
// Version History
// 0.9 -- More digg API compatibility changes
// 0.8 -- Added the newly required pagetype variable for the dig() function. Removed unnecessary scoping block. Changed credits for Drag code
// 0.7.3 -- If UserScriptUpdates is installed, use it.
// 0.7.2 -- Heh. The update version checking didn't like 0.7a so I'm changing it to 0.7.2
// 0.7a -- Prevent Drag "sticking"; Drag function object didn't work inside anonymous namespace.
// 0.7 -- Re-arrange code; Add automatic update checking; Tweak XPath expressions to support more digg pages.
// 0.6 -- Tweak close button on widget to have a pointer cursor and to remove hash from location
// 0.5 -- Refactor functions and add code to enable ADC on duggmirror.
// 0.4 -- changed dig function to match changes from digg.com and added inclusion of js files needed by diggthis.php
// 0.3 -- update to xpath of new dig layout
// 0.2 -- changed digg it link from wrapper_full() to dig() funny that they change
// that method just a couple of days after I start using it. :(
// ========================================================================
// set up our Drag function object for the widget
var Drag = function(){ this.init.apply( this, arguments ); };
Drag.fixE = function( e )
{
if( typeof e == 'undefined' ) e = window.event;
if( typeof e.layerX == 'undefined' ) e.layerX = e.offsetX;
if( typeof e.layerY == 'undefined' ) e.layerY = e.offsetY;
return e;
};
Drag.prototype.init = function( handle, dragdiv )
{
this.div = dragdiv || handle;
this.handle = handle;
if( isNaN(parseInt(this.div.style.right )) ) this.div.style.right = '0px';
if( isNaN(parseInt(this.div.style.bottom)) ) this.div.style.bottom = '0px';
this.onDragStart = function(){};
this.onDragEnd = function(){};
this.onDrag = function(){};
this.onClick = function(){};
this.mouseDown = addEventHandler( this.handle, 'mousedown', this.start, this );
};
Drag.prototype.start = function( e )
{
this.unregister();
// this.mouseUp = addEventHandler( this.handle, 'mouseup', this.end, this );
e = Drag.fixE( e );
this.started = new Date();
var y = this.startY = parseInt(this.div.style.bottom);
var x = this.startX = parseInt(this.div.style.right);
this.onDragStart( x, y );
this.lastMouseX = e.clientX;
this.lastMouseY = e.clientY;
this.documentMove = addEventHandler( document, 'mousemove', this.drag, this );
this.documentStop = addEventHandler( document, 'mouseup', this.end, this );
if( e.preventDefault ) e.preventDefault();
return false;
};
Drag.prototype.drag = function( e )
{
e = Drag.fixE( e );
var ey = e.clientY;
var ex = e.clientX;
var y = parseInt(this.div.style.bottom);
var x = parseInt(this.div.style.right );
var nx = x - ex + this.lastMouseX;
var ny = y - ey + this.lastMouseY;
this.div.style.right = nx + 'px';
this.div.style.bottom = ny + 'px';
this.lastMouseX = ex;
this.lastMouseY = ey;
this.onDrag( nx, ny );
if( e.preventDefault ) e.preventDefault();
return false;
};
Drag.prototype.unregister = function()
{
removeEventHandler( document, 'mousemove', this.documentMove );
removeEventHandler( document, 'mouseup', this.documentStop );
}
Drag.prototype.end = function()
{
this.unregister();
var time = (new Date()) - this.started;
var x = parseInt(this.div.style.right), dx = this.startX - x;
var y = parseInt(this.div.style.bottom), dy = this.startY - y;
this.onDragEnd( x, y, dx, dy, time );
if( (dx*dx + dy*dy) < (4*4) && time < 1e3 )
this.onClick( x, y, dx, dy, time );
};
function removeEventHandler( target, eventName, eventHandler )
{
if( target.addEventListener )
target.removeEventListener( eventName, eventHandler, true );
else if( target.attachEvent )
target.detachEvent( 'on' + eventName, eventHandler );
}
function addEventHandler( target, eventName, eventHandler, scope )
{
var f = scope ? function(){ eventHandler.apply( scope, arguments ); } : eventHandler;
if( target.addEventListener )
target.addEventListener( eventName, f, true );
else if( target.attachEvent )
target.attachEvent( 'on' + eventName, f );
return f;
}
// end Drag code
// ========================================================================
/* First, we have to determine what type of page we are looking at.
* ADC has four targets:
* 1. Any page that has a hash beginning with #digg_link=
* 2. Duggmirror pages
* 3. The diggthis.php API page (to tweak the links)
* 4. Digg pages that have article links
*/
var hashPart = window.location.hash.match(/#digg_link=(.*)/);
// 1. Any page that has a hash beginning with #digg_link=
if (hashPart)
{
injectADC(hashPart[1]);
}
// 2. Duggmirror pages
else if (window.location.hostname == 'duggmirror.com')
{
var articleURL = 'http://digg.com' + window.location.pathname
injectADC(articleURL);
}
// 3. The diggthis.php API page (to tweak the links)
else if (window.location.pathname == '/tools/diggthis.php' && window.location.hash == '#adc_diggthis_init')
{
/* This is where we fixup the links in the diggthis frame.
* I do not want links in the widget blowing away the current
* page so I change them to target _blank instead.
* The special case is the diggIt link itself. I need it
* to use the digg ajax method dig() instead of
* the form submission it uses normally.
* Note this also requires that I include the javascript files
* that digg.com no longer sources in diggthis.php
* I toyed with the idea of using an XHR to get the path to the
* script files, but decided against that because I have
* to filter the list to prevent init errors and because
* I didn't think an additional request per ADC is worth it.
* Unfortunately, this means if they change the requirements,
* the ADC extension will break again. :(
*/
// Turn off the init flag so this block only gets run once
// (the script loads trigger GM)
window.location.hash = '#adc_diggthis';
document.getElementById('f1').target = '_blank';
with( document.getElementById('diggs1') )
{
target = '_blank';
title = 'Click to open the digg article for this page';
}
var diggItLink = document.getElementById('diglink1').firstChild;
var newElement = document.createElement('a')
newElement.href = "javascript:dig(1,document.forms['f1'].id.value,document.forms['f1'].digcheck.value)";
newElement.appendChild(diggItLink.firstChild);
diggItLink.parentNode.replaceChild(newElement, diggItLink);
var documentHead = document.getElementsByTagName('head')[0];
var newScriptElement = document.createElement('script');
newScriptElement.setAttribute('type', 'text/javascript');
newScriptElement.appendChild( document.createTextNode( "pagetype = 'permalink';" ) );
documentHead.appendChild(newScriptElement);
var diggScriptPath = '/js/';
for each (var diggScriptName in ['digg.js', 'prototype.js', 'effects.js', 'jquery.js'])
{
var newScriptElement = document.createElement('script');
newScriptElement.setAttribute('type', 'text/javascript');
newScriptElement.setAttribute('src', diggScriptPath+diggScriptName);
documentHead.appendChild(newScriptElement);
}
}
// 4. Digg pages that have article links
else
{
/* This xpath will only match summary pages.
* We look for a news-body div inside a news-summary div and if we find it, we adjust the article link to have our special hash appended.
* NOTE: If the page does any redirection, our hash will dissapear and the whole ADC will break. :(
*/
var result = document.evaluate(
"/html/body/div[@id='container']/div[@id='contents']/div[@id='wrapper']/div[contains(concat(' ',@class,' '),' main ')]/div[contains(concat(' ',@class,' '),' news-summary ')]/div[contains(concat(' ',@class,' '),' news-body ')]",
document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
if (result.snapshotLength > 0)
{
for (var i = 0; i < result.snapshotLength; i++)
{
var newsBodyNode = result.snapshotItem(i);
var articleLink = document.evaluate("h3/a",
newsBodyNode, null, XPathResult.FIRST_ORDERED_NODE_TYPE,
null).singleNodeValue;
// Note that the digg link is absolute without the domain name. (e.g. /tech/foo)
var diggURL = 'http://digg.com' +
document.evaluate(
"div[contains(concat(' ',@class,' '),' news-details ')]/a[contains(concat(' ',@class,' '),' tool ')][contains(concat(' ',@class,' '),' comments ')]/@href",
newsBodyNode, null, XPathResult.STRING_TYPE, null
).stringValue;
articleLink.href += '#digg_link=' + encodeURIComponent(diggURL);
}
}
}
var SCRIPT = {
name: "Add Digg Control",
namespace: "http://www.yipyip.com",
source: "http://userscripts.org/scripts/show/7883.user.js", // script homepage
identifier: "http://userscripts.org/scripts/source/7883",
version: "0.9", // version
date: (new Date(2007, 7 - 1, 19)).valueOf() // update date
};
try {
var win = unsafeWindow || window.wrappedJSObject || window;
window.addEventListener("load", function () {
try {
win.UserScriptUpdates.requestAutomaticUpdates(SCRIPT);
} catch (ex) {
// If UserScriptUpdates isn't installed, try our own version.
try {
if (!GM_getValue) return;
// avoid a flood of dialogs e.g. when opening a browser with multiple tabs set to homepage and a script with * includes
var DoS_PREVENTION_TIME = 2 * 60 * 1000;
var isSomeoneChecking = GM_getValue('CHECKING', null);
var now = new Date().getTime();
GM_setValue('CHECKING', now.toString());
if (isSomeoneChecking && (now - isSomeoneChecking) < DoS_PREVENTION_TIME) return;
var lastChecked = GM_getValue('LAST_CHECKED', null);
var TWO_DAYS = 2 * 24 * 60 * 60 * 1000;
if (lastChecked && (now - lastChecked) < TWO_DAYS) return;
GM_xmlhttpRequest({
method: 'GET',
url: SCRIPT.identifier,
onload: function(result) {
if (!result.responseText.match(/@version\s+([\d.]+)/)) return;
var theOtherVersion = RegExp.$1;
if (theOtherVersion == SCRIPT.version) return;
if (window.confirm('A new version ' + theOtherVersion + ' of greasemonkey script "' + SCRIPT.name + '" is available.\nYour installed version is ' + SCRIPT.version + ' .\n\nUpdate now?\n')) {
GM_openInTab(SCRIPT.source);
}
}
});
GM_setValue('LAST_CHECKED', now.toString());
} catch (ex) {}
}
}, false);
} catch (ex) {}
function injectADC(articleURL)
{
/* ____body______________________
* | |
* | ______root______________ |
* | | | |
* | | ____handle____________ | |
* | || || |
* | ||title about close || |
* | ||______________________|| |
* | | | |
* | | ____box_______________ | |
* | || || |
* | || _____iframe_________ || |
* | ||| ||| |
* | ||| diggthis ||| |
* | |||____________________||| |
* | ||______________________|| |
* | |________________________| |
* |______________________________|
*/
var root = document.createElement( 'div' );
with( root.style )
{
position = 'fixed';
top = left = '5px';
}
var box = document.createElement( 'div' );
with( box.style )
{
position = 'relative';
zIndex = '1000';
backgroundColor = '#FFF299';
color = 'black';
border = '1px solid brown';
padding = '0px';
textAlign = 'left';
font = '6pt sans-serif';
width = '60px';
opacity = '0.63';
filter = 'alpha(opacity=60)';
}
var handle = document.createElement( 'div' );
handle.title = 'Click title to drag';
handle.style.padding = '5px';
var title_span = document.createElement( 'b' );
title_span.title = 'Add Digg Control widget';
title_span.appendChild( document.createTextNode( 'ADC' ) );
var about = document.createElement( 'a' );
with( about )
{
appendChild( document.createTextNode( '?' ) );
title = 'by Daniel Einspanjer (with code from book-burro)';
target = '_blank';
href = 'http://www.yipyip.com/firefox/index.html';
with( style )
{
position = 'absolute';
right = '15px';
top = '2px';
margin = '2px';
width = '9px';
height = '9px';
border = '1px solid brown';
lineHeight = '8px';
textAlign = 'center';
verticalAlign = 'middle';
textDecoration = 'none';
}
}
var close = document.createElement( 'span' );
with( close )
{
title = 'Click to remove from this page instance';
appendChild( document.createTextNode( 'X' ) );
with( style )
{
position = 'absolute';
right = '2px';
top = '2px';
margin = '2px';
width = '9px';
height = '9px';
border = '1px solid brown';
lineHeight = '8px';
textAlign = 'center';
cursor = 'pointer';
}
}
addEventHandler( close, 'click', function(){ document.body.removeChild( root ); window.location.hash = '';} );
var diggControlIframe = document.createElement('iframe')
with( diggControlIframe )
{
id = 'diggControlIframe';
src = 'http://digg.com/tools/diggthis.php?u='+articleURL+'#adc_diggthis_init';
height = '82';
width = '51';
scrolling = 'no';
with( style )
{
display = 'block';
border = 'none';
margin = '0 auto';
}
}
handle.appendChild( title_span );
handle.appendChild( about );
handle.appendChild( close );
box.appendChild( handle );
box.appendChild( diggControlIframe );
root.appendChild( box );
document.body.appendChild( root );
handle.drag = new Drag( handle, box );
}
