uAutoPagerize.uc.js

// ==UserScript==
// @name           uAutoPagerize
// @namespace      http://d.hatena.ne.jp/Griever/
// @description    loading next page and inserting into current page.
// @include        main
// @version        0.1.5
// @note           SITEINFO をソートするようにした
// @note           iframe 内で動作してアイコンが状態と違った問題を修正
// @note           アイコンが terminated の後にグレーにならないように変更
// ==/UserScript==
 
// this script based on
// AutoPagerize version: 0.0.41 2009-09-05T16:02:17+09:00 (http://autopagerize.net/)
// oAutoPagerize (http://d.hatena.ne.jp/os0x/searchdiary?word=%2a%5boAutoPagerize%5d)
//
// Released under the GPL license
// http://www.gnu.org/copyleft/gpl.html

window.uAutoPagerize = (function(css) {

var EXCLUDE = [// RegExp
	'https://mail\\.google\\.com/.*'
	,'http://b\\.hatena\\.ne\\.jp/.*'
];

var FORCE_TARGET_WINDOW = true;
var BASE_REMAIN_HEIGHT = 400;
var ONLOAD_TIMER = 0;
var CACHE_EXPIRE = 24 * 60 * 60 * 1000;
var XHR_TIMEOUT = 30 * 1000;
var SITEINFO_IMPORT_URLS = [
	'http://wedata.net/databases/AutoPagerize/items.json'
];

var MY_SITEINFO = [
	{
		url:           'http://eow\\.alc\\.co\\.jp/[^/]+'
		,nextLink:     'id("AutoPagerizeNextLink")'
		,pageElement:  'id("resultsList")//ul'
		,exampleUrl:   'http://eow.alc.co.jp/%E3%81%82%E3%82%8C/UTF-8/ http://eow.alc.co.jp/are'
	},
	{
		url: '^http://(?:images|www)\\.google(?:\\.[^./]{2,3}){1,2}/images\\?.*?sout=1'
		,nextLink: 'id("nn")/parent::a | id("navbar navcnt")//td[last()]/a'
		,pageElement: 'id("ImgCont")/table | id("ImgContent")'
		,exampleUrl: 'http://images.google.com/images?ndsp=18&um=1&safe=off&q=image&sa=N&gbv=1&sout=1'
	},
	{
		url:           '^http://matome\\.naver\\.jp/\w+'
		,nextLink:     '//a[@class="next"]'
		,pageElement:  'id("itemDetail")/li'
		,exampleUrl:   'http://matome.naver.jp/odai/2127476492987286301'
	},
	{
		url:'^https?://mobile\\.twitter\\.com/'
		,nextLink:'id("more_link")|//div[contains(concat(" ", @class, " "), " full-button ")]/a'
		,pageElement:'//div[contains(concat(" ", @class, " "), " list-tweet ")]'
		,exampleUrl: 'http://mobile.twitter.com/searches?q=%23css'
	}
];

var MICROFORMAT = [
	{
		url:          '^https?://.*',
		nextLink:     '//a[@rel="next"] | //link[@rel="next"]',
		insertBefore: '//*[contains(@class, "autopagerize_insert_before")]',
		pageElement:  '//*[contains(@class, "autopagerize_page_element")]',
	}
];

var COLOR = {
	on: '#0f0',
	off: '#ccc',
	enable: '#0f0',
	disable: '#ccc',
	loading: '#0ff',
	terminated: '#00f',
	error: '#f0f'
}

if (typeof window.uAutoPagerize != 'undefined') {
	window.uAutoPagerize.theEnd();
	css = '';
}

var ns = {
	EXCLUDE            : EXCLUDE,
	DEBUG              : true,
	AUTO_START         : true,
	FORCE_TARGET_WINDOW: FORCE_TARGET_WINDOW,
	BASE_REMAIN_HEIGHT : BASE_REMAIN_HEIGHT,
	ONLOAD_TIMER       : ONLOAD_TIMER,
	MICROFORMAT        : MICROFORMAT,
	MY_SITEINFO        : MY_SITEINFO,
	SITEINFO           : [],
	init: function() {
		if (css)
			addStyle(css);

		ns.icon = $('status-bar').appendChild($E(
			<statusbarpanel id="uAutoPagerize-icon"
			                class="statusbarpanel-iconic-text"
			                state="disable"
			                tooltiptext="disable"
			                onclick="if(event.button != 2) uAutoPagerize.iconClick(event);"
			                context="uAutoPagerize-popup"/>
		));

		ns.EXCLUDE = ns.EXCLUDE.map(function(e) new RegExp(e));
		if (!getCache())
			requestSITEINFO();

		GM_COOP();
		ns.addListener();
	},
	uninit: function() {
		ns.removeListener();
	},
	theEnd: function() {
		var icon = ns.icon || $('uAutoPagerize-icon');
		if (icon) icon.parentNode.removeChild(icon);
		var popup = ns.popup || $('uAutoPagerize-popup');
		if (popup) popup.parentNode.removeChild(popup);
		ns.removeListener();
	},
	addListener: function() {
		gBrowser.mPanelContainer.addEventListener('DOMContentLoaded', ns.domContentLoaded, true);
		//$('sidebar').addEventListener('DOMContentLoaded', ns.domContentLoaded, true);
		gBrowser.mTabContainer.addEventListener('TabSelect', ns.tabSelect, false);
		window.addEventListener('unload', ns.uninit, false);
	},
	removeListener: function() {
		gBrowser.mPanelContainer.removeEventListener('DOMContentLoaded', ns.domContentLoaded, true);
		//$('sidebar').removeEventListener('DOMContentLoaded', ns.domContentLoaded, true);
		gBrowser.mTabContainer.removeEventListener('TabSelect', ns.tabSelect, false);
		window.removeEventListener('unload', ns.uninit, false);
	},
	launch: function(win, timer){
		var locationHref = win.location.href;
		if (locationHref.indexOf('http') != 0)
			return updateIcon();
		var doc = win.document;
		if (doc.body instanceof HTMLFrameSetElement)
			return updateIcon();

		var data = GrieverWindowStore.get(win);
		if (typeof data.AutoPagerize == 'undefined') {
			data.filters         = [];
			data.documentFilters = [];
			data.requestFilters  = [];
			data.responseFilters = [];
			data.AutoPagerize = {
				addFilter         : function(f) { data.filters.push(f) },
				addDocumentFilter : function(f) { data.documentFilters.push(f); },
				addResponseFilter : function(f) { data.responseFilters.push(f); },
				addRequestFilter  : function(f) { data.requestFilters.push(f); },
				launchAutoPager   : function(l) { launchAutoPager_org(l, win); }
			}
		}
		var ev = doc.createEvent('Event')
		ev.initEvent('GM_AutoPagerizeLoaded', true, false)
		doc.dispatchEvent(ev)

		var miscellaneous = [];
		// 継ぎ足されたページからは新しいタブで開く
		if (ns.FORCE_TARGET_WINDOW){
			data.documentFilters.push(function(doc){
				var arr = getElementsByXPath('//a[@href and not(starts-with(@href, "mailto:")) and not(starts-with(@href, "javascript:")) and not(starts-with(@href, "#"))]', doc);
				arr.forEach(function (elem){
					elem.setAttribute('target', '_blank');
				});
			});
		}

		if (/^https?:\/\/[^.]+\.google\.(?:[^.]{2,3}\.)?[^./]{2,3}\/(?:c(?:se|ustom)|search).*?tbs=vid(?:%3A|:)1/i.test(locationHref)) {
			// Google Video
			var js = '';
			var df = function (newDoc) {
				Array.slice(doc.querySelectorAll('[id^="vidthumb"]')).forEach(function(e){
					e.removeAttribute('id');
				});
				var x = getElementsByXPath('//script/text()[starts-with(self::text(), "(function(x){x&&(x.src=")]', newDoc);
				js = x.map(function(e) e.textContent ).join('\n');
			}
			var af = function af(elems) {
				var s = doc.createElement('script');
				s.type = 'text/javascript';
				s.textContent = js;
				doc.body.appendChild(s);
				doc.body.removeChild(s);
				js = '';
			}
			data.documentFilters.push(df);
			data.filters.push(af);
		}
		else if (/^http:\/\/(?:images|www)\.google(?:\.[^.\/]{2,3}){1,2}\/images\?.*?sout=1/i.test(locationHref)) {
			// Google Image
			if (!timer && timer < 1000) timer = 1000;
			data.requestFilters.push(function(opt) {
				opt.url = opt.url.replace(/\?/, '?gbv=1&').replace(/&?gbv=2/, '');
			});
		}
		else if (win.location.host === 'twitter.com') {
			data.documentFilters.push(function(_doc, _requestURL, _info) {
				data.ap.requestURL = data.ap.lastRequestURL;
			});
		}
		// oAutoPagerize
		else if (win.location.host === 'eow.alc.co.jp') {
			var alc = function(doc){
				var a,r = doc.evaluate('//p[@id="paging"]/a[last()]',
					doc,null,XPathResult.FIRST_ORDERED_NODE_TYPE,null);
				if (r.singleNodeValue) a = r.singleNodeValue;
				else return;
				a.id = 'AutoPagerizeNextLink';
				a.href = a.href.replace(/javascript:goPage\("(\d+)"\)/,'./?pg=$1');
			};
			data.documentFilters.push(alc);
			miscellaneous.push(alc);
		}
		else if (win.location.host === 'matome.naver.jp') {
			var naver = function(doc){
				var next = getFirstElementByXPath('//a[@class="next"]', doc);
				if (next && next.hasAttribute('onclick')) {
					next.href = win.location.pathname + '?page=' + next.getAttribute('onclick').match(/\d+/)[0];
				} else {
					next.parentNode.removeChild(next);
				}
			}
			data.documentFilters.push(naver);
			miscellaneous.push(naver);
		}

		if (win.frameElement instanceof HTMLIFrameElement)
			return;

		if (ns.EXCLUDE.some(function(ads) ads.test(locationHref)))
			return updateIcon();

		setTimeout(function(self){
			data.ap = null;
			miscellaneous.forEach(function(func){ func(doc); });
			//var s = new Date().getTime();
			var info = self.getInfo(self.MY_SITEINFO, win) || 
			           self.getInfo(self.SITEINFO, win) || 
			           self.getInfo(self.MICROFORMAT, win);
			//var e = new Date().getTime() - s;

			if (info)
				data.ap = new AutoPager(win.document, info);

			var index = uAutoPagerize.SITEINFO.indexOf(info);
			//ns.icon.label = index + '/' + e + 'ms';
			if (index > 10) {
				uAutoPagerize.SITEINFO.splice(index, 1);
				uAutoPagerize.SITEINFO.unshift(info);
			}

			updateIcon();
		}, timer||0, this);
	},

	domContentLoaded: function(event){
		if (ns.AUTO_START)
			ns.launch(event.target.defaultView, ns.ONLOAD_TIMER);
	},
	tabSelect: function(event){
		if (!ns.AUTO_START)
			return
		updateIcon();
	},
	iconClick: function(event){
		if (event.button == 0){
			if (ns.AUTO_START){
				ns.AUTO_START = false;
				updateIcon();
			}else{
				ns.AUTO_START = true;
				if (!content.ap)
					ns.launch(content);
				else updateIcon();
			}
		}
		else if (event.button == 1){
			if (confirm('reset SITEINFO?'))
				requestSITEINFO();
		}
	},
	getInfo: function (list, win) {
		if (!list) list = ns.SITEINFO;
		if (!win)  win  = content;
		var doc = win.document;
		var locationHref = doc.location.href;
		var resInfo;
		list.some(function(info, index, array) {
			try {
				var exp = new RegExp(info.url);
				if ( ! exp.test(locationHref) ) {
				} else if (!getFirstElementByXPath(info.nextLink, doc)) {
					// ignore microformats case.
					if (!exp.test('http://a')) {
						debug('nextLink not found.', info.nextLink);
					}
				} else if (!getFirstElementByXPath(info.pageElement, doc)) {
					if (!exp.test('http://a')) {
						debug('pageElement not found.', info.pageElement);
					}
				} else {
					resInfo = info;
					return true;
				}
			} catch(e) {
				log('error at launchAutoPager() : ' + e);
			}
		});
		return resInfo;
	},
};

// Class
function AutoPager(doc, info){
	this.doc = doc;
	this.win = doc.defaultView;
	this.data = GrieverWindowStore.get(this.win);
	this.href = doc.location.href;
	this.prePath = doc.location.protocol + '//' + doc.location.host + '/';
	this.documentElement = doc.documentElement;
	this.body = doc.body;
	this.info = info;
	this.isXML = this.doc.contentType.indexOf('xml') > 0;
	this.isFrame = this.win.top != this.win;

	var url = this.getNextURL(this.doc);
	if ( !url ) {
		log("getNextURL returns null.", this.info.nextLink);
		return;
	}
	if (info.insertBefore) {
		this.insertPoint = getFirstElementByXPath(this.info.insertBefore, this.doc);
	}

	if (!this.insertPoint) {
		var lastPageElement = getElementsByXPath(this.info.pageElement, this.doc).pop();
		if (lastPageElement) {
			this.insertPoint = lastPageElement.nextSibling ||
				lastPageElement.parentNode.appendChild(this.doc.createTextNode(' '));
		}
	}
	if (!this.insertPoint) {
		log("insertPoint not found.", lastPageElement, this.info.pageElement);
		return;
	}

	if (this.isFrame)
		this.initIcon();

	this.requestURL = url;
	this.loadedURLs = {};
	this.loadedURLs[this.href] = true;

	var self = this;
	this.scroll = function() { self.onScroll() };
	this.pagehide = function() { self.onPagehide() };
	this.win.addEventListener("scroll", this.scroll, false);
	this.win.addEventListener("pagehide", this.pagehide, false);

	var scrollHeight = Math.max(this.documentElement.scrollHeight, this.body.scrollHeight);
	var bottom = getElementPosition(this.insertPoint).top ||
		this.getPageElementsBottom() || (Math.round(scrollHeight * 0.8));
	this.remainHeight = scrollHeight - bottom + ns.BASE_REMAIN_HEIGHT;
	
	this.scroll();
	if (scrollHeight == this.win.innerHeight)
		this.body.style.minHeight = (this.win.innerHeight + 1) + 'px';
};
AutoPager.prototype = {
	req: null,
	pageNum: 1,
	state: 'enable',

	setState : function(state){
		this.state = state;
		updateIcon(this.data);
		if (state === 'terminated' || state === 'error')
			this.win.removeEventListener('scroll', this.scroll, false)
	},
	onPagehide: function(event){
		this.win.removeEventListener('scroll', this,scroll, false);
		this.win.removeEventListener('pagehide', this.pagehide, false);
		if (this.req) {
			this.req.abort();
			this.req = null;
		}
	},
	onScroll : function(){
		if (this.state !== 'enable' || !ns.AUTO_START)
			return;
		var scrollHeight = Math.max(this.documentElement.scrollHeight, this.body.scrollHeight);
		var remain = scrollHeight - this.win.innerHeight - this.win.scrollY;
		if (remain < this.remainHeight) {
			this.request();
		}
	},
	request : function(){
		if (!this.requestURL || this.lastRequestURL == this.requestURL)
			return;

		this.lastRequestURL = this.requestURL;
		var self = this;
		var headers = {};
		if (this.win.location.host == this.requestURL.split('/')[2]) {
			headers.Cookie = this.doc.cookie;
		}
		var opt = {
			method: 'get',
			url: this.requestURL,
			headers: headers,
			overrideMimeType: 'text/html; charset=' + this.doc.characterSet,
			onerror: function(){ self.setState('error'); self.req = null; },
			onload: function(res) { self.requestLoad.apply(self, [res]); self.req = null; }
		}
		this.data.requestFilters.forEach(function(i) { i(opt) }, this);
		this.setState('loading');
		this.req = GM_xmlhttpRequest(opt);
	},
	requestLoad : function(res){
		if (res.finalUrl && res.finalUrl.indexOf(this.prePath) !== 0) {
			debug('finalUrl is external domain.' , res.finalUrl);
			this.setState('error');
			this.req = null;
			return;
		}

		this.data.responseFilters.forEach(function(i) { i(res, this.requestURL) }, this);
		if (res.finalUrl)
			this.requestURL = res.finalUrl;

		var str = res.responseText;
		var htmlDoc;
		if (this.isXML){
			htmlDoc = new DOMParser().parseFromString(str, "application/xml");
		} else {
			// thx! http://pc12.2ch.net/test/read.cgi/software/1253771697/478
			htmlDoc = this.doc.cloneNode(false);
			htmlDoc.appendChild(htmlDoc.importNode(this.documentElement, false));
			var range = this.doc.createRange();
			htmlDoc.documentElement.appendChild(range.createContextualFragment(str));
			range.detach();
		}
		this.data.documentFilters.forEach(function(i) { i(htmlDoc, this.requestURL, this.info) }, this);

		try {
			var page = getElementsByXPath(this.info.pageElement, htmlDoc);
			var url = this.getNextURL(htmlDoc);
		}
		catch(e){
			log(e);
			this.setState('error');
			return;
		}

		if (!page || page.length < 1 ) {
			debug('pageElement not found.' , this.info.pageElement);
			this.setState('terminated');
			return;
		}

		if (this.loadedURLs[this.requestURL]) {
			debug('page is already loaded.', this.requestURL, this.info.nextLink);
			this.setState('terminated');
			return;
		}

		if (typeof this.data.ap == 'undefined'){
			this.data.ap = { state: 'enabled' };
			updateIcon(this.data);
		}
		this.loadedURLs[this.requestURL] = true;
		page = this.addPage(htmlDoc, page);
		this.data.filters.forEach(function(i) { i(page) });
		this.requestURL = url;
		this.setState('enable');
		//this.onScroll();
		if (!url) {
			debug('nextLink not found.', this.info.nextLink, htmlDoc);
			this.setState('terminated');
		}
		var ev = this.doc.createEvent('Event');
		ev.initEvent('GM_AutoPagerizeNextPageLoaded', true, false);
		this.doc.dispatchEvent(ev);
	},
	addPage : function(htmlDoc, page){
		var hr = this.doc.createElement('hr');
		var p  = this.doc.createElement('p');
		hr.setAttribute('class', 'autopagerize_page_separator');
		p.setAttribute('class', 'autopagerize_page_info');
		var self = this;

		var insertParent = this.insertPoint.parentNode;
		if (page[0] && page[0].tagName == 'TR') {
			var colNodes = getElementsByXPath('child::tr[1]/child::*[self::td or self::th]', insertParent);

			var colums = 0;
			for (var i = 0, l = colNodes.length; i < l; i++) {
				var col = colNodes[i].getAttribute('colspan');
				colums += parseInt(col, 10) || 1;
			}
			var td = this.doc.createElement('td');
			td.appendChild(hr);
			td.appendChild(p);
			var tr = this.doc.createElement('tr');
			td.setAttribute('colspan', colums);
			tr.appendChild(td);
			insertParent.insertBefore(tr, this.insertPoint);
		}
		else {
			insertParent.insertBefore(hr, this.insertPoint);
			insertParent.insertBefore(p, this.insertPoint);
		}

		p.innerHTML = 'page: <a class="autopagerize_link" href="' +
			this.requestURL.replace(/&/g, '&amp;') + '">' + (++this.pageNum) + '</a>';
		return page.map(function(i) {
			var pe = i || this.doc.importNode(i, true);
			insertParent.insertBefore(pe, self.insertPoint);
			var ev = this.doc.createEvent('MutationEvent');
			ev.initMutationEvent('AutoPagerize_DOMNodeInserted', true, false,
								 insertParent, null,
								 self.requestURL, null, null);
			pe.dispatchEvent(ev);
			return pe;
		}, this);
	},
	getNextURL : function(doc) {
		var nextLink = getFirstElementByXPath(this.info.nextLink, doc);
		if (nextLink) {
			var nextValue = nextLink.getAttribute('href') ||
				nextLink.getAttribute('action') || nextLink.value;

			if (nextValue.indexOf('http') != 0){
				var anc = this.doc.createElement('a');
				anc.setAttribute('href', nextValue);
				nextValue = anc.href;
			}
			return nextValue;
		}
	},
	getPageElementsBottom : function() {
		try {
			var elem = getElementsByXPath(this.info.pageElement).pop();
			return getElementBottom(elem);
		}
		catch(e) {}
	},
	initIcon: function() {
		var self = this;
		var div = self.doc.createElement("div");
		div.setAttribute('id', 'autopagerize_icon');
		var s = div.style;
		s.fontSize   = '12px';
		s.position   = 'fixed';
		s.top        = '3px';
		s.right      = '3px';
		s.background = COLOR[self.state == 'enable'? 'enable' : 'disable'];
		s.color      = '#fff';
		s.width  = '10px';
		s.height = '10px';
		s.zIndex = '255';
		self.icon = self.body.appendChild(div);

		self.setState = function(state) {
			self.state = state;
			self.icon.style.background = COLOR[self.state];
			if (state === 'terminated' || state === 'error') {
				self.win.removeEventListener('scroll', self.scroll, false)
				self.state = 'disable';
				setTimeout(function() {
					self.icon.style.background = COLOR[self.state];
					self.icon.style.display = 'none';
				}, 1500);
			}
		}
		
		var toggle = function(event) {
			self.state = self.state == 'enable'? 'disable' : 'enable';
			self.icon.style.backgroundColor = COLOR[self.state];
		}

		self.icon.addEventListener('click', toggle, false);
		self.win.addEventListener('pagehide', function(event) {
			event.currentTarget.removeEventListener(event.type, arguments.callee, false);
			self.icon.removeEventListener('click', toggle, false);
		}, false);
	},
};



function updateIcon(data){
	if (ns.AUTO_START == false){
		ns.icon.setAttribute('state', 'off');
		ns.icon.setAttribute('tooltiptext', 'off');
		return;
	}
	data || (data = GrieverWindowStore.get(content));
	if (data.ap){
		ns.icon.setAttribute('state', data.ap.state);
		ns.icon.setAttribute('tooltiptext', data.ap.state);
	} else {
		ns.icon.setAttribute('state', 'disable');
		ns.icon.setAttribute('tooltiptext', 'disable');
	}
}

function launchAutoPager_org(list, win) {
	try {
		var doc = win.document;
		var data = GrieverWindowStore.get(win);
		var locationHref = win.location.href;
		list.some(function(info, index, array) {
			try {
				var exp = new RegExp(info.url);
				if (data.ap) {
				} else if ( ! exp.test(locationHref) ) {
				} else if (!getFirstElementByXPath(info.nextLink, doc)) {
					// ignore microformats case.
					if (!exp.test('http://a')) {
						debug('nextLink not found.', info.nextLink);
					}
				} else if (!getFirstElementByXPath(info.pageElement, doc)) {
					if (!exp.test('http://a')) {
						debug('pageElement not found.', info.pageElement);
					}
				} else {
					data.ap = new AutoPager(doc, info);
					return true;
				}
			} catch(e) {
				log('error at launchAutoPager() : ' + e);
			}
		});
	} catch(e) { }
	updateIcon();
}


function getElementsByXPath(xpath, node) {
	var nodesSnapshot = getXPathResult(xpath, node, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE);
	var data = [];
	for (var i = 0, l = nodesSnapshot.snapshotLength; i < l; i++) {
		data[i] = nodesSnapshot.snapshotItem(i);
	}
	return data;
}

function getFirstElementByXPath(xpath, node) {
	var result = getXPathResult(xpath, node, XPathResult.FIRST_ORDERED_NODE_TYPE);
	return result.singleNodeValue;
}

function getXPathResult(xpath, node, resultType) {
	var doc = node.ownerDocument || node
	var resolver = doc.createNSResolver(node.documentElement || node)
	// Use |node.lookupNamespaceURI('')| for Opera 9.5
	var defaultNS = node.lookupNamespaceURI(null)
	if (defaultNS) {
		const defaultPrefix = '__default__'
		xpath = addDefaultPrefix(xpath, defaultPrefix)
		var defaultResolver = resolver
		resolver = function (prefix) {
			return (prefix == defaultPrefix)
				? defaultNS : defaultResolver.lookupNamespaceURI(prefix)
		}
	}
	return doc.evaluate(xpath, node, resolver, resultType, null)
}

function addDefaultPrefix(xpath, prefix) {
	const tokenPattern = /([A-Za-z_\u00c0-\ufffd][\w\-.\u00b7-\ufffd]*|\*)\s*(::?|\()?|(".*?"|'.*?'|\d+(?:\.\d*)?|\.(?:\.|\d+)?|[\)\]])|(\/\/?|!=|[<>]=?|[\(\[|,=+-])|([@$])/g
	const TERM = 1, OPERATOR = 2, MODIFIER = 3
	var tokenType = OPERATOR
	prefix += ':'
	function replacer(token, identifier, suffix, term, operator, modifier) {
		if (suffix) {
			tokenType =
				(suffix == ':' || (suffix == '::' &&
				 (identifier == 'attribute' || identifier == 'namespace')))
				? MODIFIER : OPERATOR
		}
		else if (identifier) {
			if (tokenType == OPERATOR && identifier != '*') {
				token = prefix + token
			}
			tokenType = (tokenType == TERM) ? OPERATOR : TERM
		}
		else {
			tokenType = term ? TERM : operator ? OPERATOR : MODIFIER
		}
		return token
	}
	return xpath.replace(tokenPattern, replacer)
};

function getElementPosition(elem) {
	var offsetTrail = elem;
	var offsetLeft  = 0;
	var offsetTop   = 0;
	while (offsetTrail) {
		offsetLeft += offsetTrail.offsetLeft;
		offsetTop  += offsetTrail.offsetTop;
		offsetTrail = offsetTrail.offsetParent;
	}
	return {left: offsetLeft || null, top: offsetTop|| null};
}

function getElementBottom(elem) {
	var doc = elem.ownerDocument;
	if ('getBoundingClientRect' in elem){
		var rect = elem.getBoundingClientRect();
		var top = parseInt(rect.top, 10) + (doc.body.scrollTop || doc.documentElement.scrollTop);
		var height = rect.height;
	}else{
		var c_style = doc.defaultView.getComputedStyle(elem, '');
		var height  = 0;
		var prop    = ['height', 'borderTopWidth', 'borderBottomWidth',
			'paddingTop', 'paddingBottom',
			'marginTop', 'marginBottom'];
		prop.forEach(function(i) {
			var h = parseInt(c_style[i]);
			if (typeof h == 'number') {
				height += h;
			}
		});
		var top = getElementPosition(elem).top;
	}
	return top ? (top + height) : null;
}


// end utility functions.

function GM_COOP() {
	var ret = false;

	try{
		var gm = Components.classes['@greasemonkey.mozdev.org/greasemonkey-service;1'];
		if (!gm) return false;
		gm = gm.getService().wrappedJSObject;
		if (gm.uAutoPagerize) return true;
		gm.uAutoPagerize = true;
		var addBefore = function(target,name,newFunc){
			var original = target[name];
			target[name] = function(){
				newFunc.apply(target,arguments);
				var tmp = original.apply(target,arguments);
				return tmp;
			};
			target[name + '_original'] = original;
		}
		addBefore(gm,"evalInSandbox",function(code, codebase, sandbox, script){
			try{
				if ('AutoPagerize' in sandbox.window) return;

				var win = GrieverWindowStore.get(sandbox.document.defaultView);
				if ('AutoPagerize' in win)
					sandbox.window.AutoPagerize = win.AutoPagerize;
			}catch(e){}
		});
		ret = true;
	}catch(e){ }
	return ret;
}

function getCache() {
	try{
		var cache = window.globalStorage.uAutoPagerize.cache;
		if (!cache) return false;
		cache = JSON.parse(cache.value);
		ns.SITEINFO = cache;
		log('[uAutoPagerize] Load cacheInfo.');
		return true;
	}catch(e){
		log('[uAutoPagerize] Error getCache.')
		return false;
	}
}

function requestSITEINFO(){
	var xhrStates = {};
	SITEINFO_IMPORT_URLS.forEach(function(i) {
		var opt = {
			method: 'get',
			url: i,
			onload: function(res) {
				xhrStates[i] = 'loaded';
				getCacheCallback(res, i);
			},
			onerror: function(res){
				xhrStates[i] = 'error';
				getCacheErrorCallback(i);
			},
		}
		xhrStates[i] = 'start';
		GM_xmlhttpRequest(opt);
		setTimeout(function() {
			if (xhrStates[i] == 'start') {
				getCacheErrorCallback(i);
			}
		}, XHR_TIMEOUT);
	});
};

function getCacheCallback(res, url) {
	if (res.status != 200) {
		return getCacheErrorCallback(url);
	}

	var info;
	try {
		var s = new Components.utils.Sandbox( new XPCNativeWrapper(window) );
		info = Components.utils.evalInSandbox(res.responseText, s).map(function(i) { return i.data });
	} catch(e) {
		info = [];
	}
	if (info.length > 0) {
		info = info.filter(function(i) { return ('url' in i) })
		info.sort(function(a, b) { return (b.url.length - a.url.length) })

		var r_keys = ['url', 'nextLink', 'insertBefore', 'pageElement']
		info = info.map(function(i) {
			var item = {};
			r_keys.forEach(function(key) {
				if (i[key]) {
					item[key] = i[key];
				}
			});
			return item;
		});
//		var cacheInfo = {};
//		cacheInfo[url] = {
//			url: url,
//			expire: new Date(new Date().getTime() + CACHE_EXPIRE),
//			info: info
//		};
		var json = JSON.stringify(info);
                if ("cache" in window.globalStorage.uAutopagerize)
                    window.globalStorage.uAutoPagerize.removeItem("cache");
		window.globalStorage.uAutoPagerize.cache = json;
		ns.SITEINFO = info;
		log('getCacheCallback:' + url);
	}
	else {
		getCacheErrorCallback(url);
	}
}

function getCacheErrorCallback(url) {
	log('getCacheErrorCallback:' + url);
}

function GM_xmlhttpRequest(obj) {
	if(typeof(obj) != 'object' || (typeof(obj.url) != 'string' && !(obj.url instanceof String))) return;

	var req = new XMLHttpRequest();
	req.open(obj.method || 'GET',obj.url,true);
	if(typeof(obj.headers) == 'object') for(var i in obj.headers) req.setRequestHeader(i,obj.headers[i]);
	['onload','onerror','onreadystatechange'].forEach(function(k) {
		if(obj[k] && (typeof(obj[k]) == 'function' || obj[k] instanceof Function)) req[k] = function() {
			obj[k]({
				status          : (req.readyState == 4) ? req.status : 0,
				statusText      : (req.readyState == 4) ? req.statusText : '',
				responseHeaders : (req.readyState == 4) ? req.getAllResponseHeaders() : '',
				responseText    : req.responseText,
				readyState      : req.readyState,
				finalUrl        : (req.readyState == 4) ? req.channel.URI.spec : '' });
		};
	});

	if(obj.overrideMimeType) req.overrideMimeType(obj.overrideMimeType);
//	var c = 0;
//	var timer = setInterval(function() { if(req.readyState == 1 || ++c > 100) { clearInterval(timer); req.send(obj.data || null); } },10);
	req.send(null);
	return req;
}

function log(message){ Application.console.log(message); }

function debug(){ if (ns.DEBUG) Application.console.log('DEBUG: ' + $A(arguments)); };

function $(id, doc) (doc || document).getElementById(id);
function U(text) 1 < 'あ'.length ? decodeURIComponent(escape(text)) : text;
function $A(arr) Array.slice(arr);
function $E(xml, doc) {
	doc = doc || document;
	xml = <root xmlns={doc.documentElement.namespaceURI}/>.appendChild(xml);
	var settings = XML.settings();
	XML.prettyPrinting = false;
	var root = new DOMParser().parseFromString(xml.toXMLString(), 'application/xml').documentElement;
	XML.setSettings(settings);
	doc.adoptNode(root);
	var range = doc.createRange();
	range.selectNodeContents(root);
	var frag = range.extractContents();
	range.detach();
	return frag.childNodes.length < 2 ? frag.firstChild : frag;
}

function addStyle(css) {
	var pi = document.createProcessingInstruction(
		'xml-stylesheet',
		'type="text/css" href="data:text/css;utf-8,' + encodeURIComponent(css) + '"'
	);
	return document.insertBefore(pi, document.documentElement);
}

(function(){
	const currentRevision = 1;
	const namespace = 'GrieverWindowStore';

	if (namespace in window && window[namespace].version >= currentRevision) return;

	var table = namespace in window? window[namespace].table : [];
	var data  = namespace in window? window[namespace].data  : [];

	window[namespace] = {
		version: currentRevision,
		get table() table,
		get data() data,
		indexOf: function(obj) {
			if (!(obj instanceof Window)) return -1;
			var id = -1;
			table.some(function(e, i, a) e == obj? (id = i, true) : false);
			return id;
		},
		get: function(obj){
			if (!(obj instanceof Window)) return null;
			var id = this.indexOf(obj);
			if (id >= 0) return data[id];
			var url = obj.location.href;
			var dataObj = { toString: function() url };
			table.push(obj);
			data.push(dataObj);
			obj.addEventListener('pagehide', this, false);
			return dataObj;
		},
		delete: function(obj){
			if (!(obj instanceof Window)) return false;
			var id = this.indexOf(obj);
			if (id == -1) return false;
			table.splice(id, 1);
			data.splice(id, 1);
			return true;
		},
		handleEvent: function(event) {
			switch (event.type) {
				case 'pagehide':
					event.currentTarget.removeEventListener('pagehide', this, false);
					this.delete(event.currentTarget);
					break;
			}
		},
	}
})();

return ns;

})(/*<![CDATA[

#uAutoPagerize-icon {
	list-style-image: url(
		data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFAAAAAQCAYAAACBSfjBAAAA2klEQVRYhe
		2WwYmGMBhE390+0kCOwZLswQK82YAg2Ict2IBdeJ3/FHcW9oewnoRv4N0yGB4TECLPs22bHIBlWeQAzP
		Msp/a7q5MDkM4kB6DsRc7PDaTfQEqnHIBSdjm1fXWXHIAznXIA9rLLub+esxyA4zjkfDsXAkNgCHy/wM
		jDtK5tHEc5td+6tn7t5dz9xrX1/Sqn9lvXtvarnNpvXdtfLzUEhsAQ+H6BkYdpXdswDHJqv3Vtecpy7n
		7j2nKe5NR+69qmPMmp/da1ff2NCYEhMAS+WmDk//kA2XH2W9CWRjQAAAAASUVORK5CYII=
		);

}
#uAutoPagerize-icon[state="disable"]    { -moz-image-region: rect(0px 16px 16px 0px ); }
#uAutoPagerize-icon[state="enable"]     { -moz-image-region: rect(0px 32px 16px 16px); }
#uAutoPagerize-icon[state="terminated"] { -moz-image-region: rect(0px 48px 16px 32px); }
#uAutoPagerize-icon[state="error"]      { -moz-image-region: rect(0px 64px 16px 48px); }
#uAutoPagerize-icon[state="off"]        { -moz-image-region: rect(0px 80px 16px 64px); }


#uAutoPagerize-icon[state="loading"] {
	list-style-image: url(data:image/gif;base64,
		R0lGODlhEAAQAKEDADC/vyHZ2QD//////yH/C05FVFNDQVBFMi4wAwEAAAAh+QQJCgADACwAAAAAEAAQ
		AAACIJyPacKi2txDcdJmsw086NF5WviR32kAKvCtrOa2K3oWACH5BAkKAAMALAAAAAAQABAAAAIinI9p
		wTEChRrNRanqi1PfCYLACIQHWZoDqq5kC8fyTNdGAQAh+QQJCgADACwAAAAAEAAQAAACIpyPacAwAcMQ
		VKz24qyXZbhRnRNJlaWk6sq27gvH8kzXQwEAIfkECQoAAwAsAAAAABAAEAAAAiKcj6kDDRNiWO7JqSqU
		1O24hCIilMJomCeqokPrxvJM12IBACH5BAkKAAMALAAAAAAQABAAAAIgnI+pCg2b3INH0uquXqGH7X1a
		CHrbeQiqsK2s5rYrehQAIfkECQoAAwAsAAAAABAAEAAAAiGcj6nL7Q+jNKACaO/L2E4mhMIQlMEijuap
		pKSJim/5DQUAIfkECQoAAwAsAAAAABAAEAAAAiKcj6nL7Q+jnLRaJbIYoYcBhIChbd4njkPJeaBIam33
		hlUBACH5BAEKAAMALAAAAAAQABAAAAIgnI+py+0PoxJUwGofvlXKAAYDQAJLKJamgo7lGbqktxQAOw==
		);
}

#uAutoPagerize-icon > .statusbarpanel-text {
	display: none !important;
}

]]>.toString().replace(/\n|\t/g, '')*/);

window.uAutoPagerize.init();
// vim:set foldmethod=indent: