Autobarcode/code.js

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/* http://keith-wood.name/svg.html
   SVG for jQuery v1.4.5.
   Written by Keith Wood (kbwood{at}iinet.com.au) August 2007.
   Dual licensed under the GPL (http://dev.jquery.com/browser/trunk/jquery/GPL-LICENSE.txt) and 
   MIT (http://dev.jquery.com/browser/trunk/jquery/MIT-LICENSE.txt) licenses. 
   Please attribute the author if you use it. */
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/*
 * autobarcode.js version 22
 * Copyright 2012-2013 fiesh, Martin Klicken @ Vroniplag Wiki.
 * Licensed under GNU General Public License v3 or later.
 */

var DEBUGLEVEL = 0; 

var API = 'https://vroniplag.wikia.org/de/api.php';
var PARAMETER = '/AutoBarcodeParameter';
var WIDTH = 624;
var LEFTRIGHTMARGIN = 8;
var HEIGHT = 84;
var HEADER = 14;
var CHIPLENGTH = 2;
var FONT = 'Helvetica';
var FONTSIZE = 12;
var SKIP = 16;
var TEXTAFTEREDGE_FIX = 4; // If WebKit or Opera (and most likely IE) recognized the dominant-baseline correctly, this would not be necessary.
var TEXTBEFOREEDGE_FIX = 12;
var MIDDLE_FIX = 1;
var BETWEENTEXTSPACE = '35px';
var BOXX = 60;
var BOXY = 20;
var BOXOFFSETX = 60;
var BOXOFFSETY = 40;
var TEXTOFFSETY = 4;
var BOXCOLOR = '#ffffff';

var TEXTA = 'Funde von Fremdtextübernahmen nach Seiten. Anzahl Seiten mit Funden in ';
var TEXTB = 'nicht einberechnete Seiten'
var TEXTC = 'Seite enthält Fremdtextübernahmen'
var TEXTD = 'mehr als 50 % der Seite betroffen'
var TEXTE = 'mehr als 75 % der Seite betroffen'
 
var time = new Date();
function zeroPrefix(s) {
	return s < 10 ? '0' + s : s;
}
var TIMESTRING = zeroPrefix(time.getDate()) + '.' + zeroPrefix(time.getMonth() + 1) + '.' + time.getFullYear() + ' ' + zeroPrefix(time.getHours()) + ':' + zeroPrefix(time.getMinutes());
 
var TIMEOUT = 20;
 
var BLUE = '#badcf6';
var WHITE = '#ffffff';
var BLACK = '#000000';
var DARKRED = '#960000';
var BRIGHTRED = '#ff0000';
 
var colors = [BLUE, WHITE, BLACK, DARKRED, BRIGHTRED];
 
// Array that contains for each prefix an object with values "current" and "max".
// current is the prefix of the pages being loaded by secondAjaxQuery(),
// max is as high as secondAjaxQuery() goes.  E.g. if a paper has 334 pages,
// max would have to be 3 to query all pages up to prefix/3..
var pageCounter = new Array();
 
// Array that, for each prefix, codes the information for the pages to render:
// 0 means "blue page"
// 1 means "white page"
// 2 means "black page"
// 3 means "dark red page"
// 4 means "bright red page"
var pages = new Array();
 
var absMinPage = new Array();
var absMaxPage = new Array();
 
var reference = new Array();
 
$(function() {
	$('.autobarcode').each(firstAjaxQuery);
});
 
function firstAjaxQuery()
{
	var prefix = $(this).attr('id').substr('autobarcode'.length);
	var maxPage;
 
 
	pageCounter[prefix] = new Object();
	pages[prefix] = new Array; // Fill with zeros those that exist
 
	var title = prefix + PARAMETER;
 
	$.getJSON(API + "?action=query&titles=" + title + "&format=json&cllimit=max&rvprop=content&prop=revisions&callback=?",
			function(data) {
				var i;
				for(var z in data.query.pages) {
					var c = data.query.pages[z].revisions['0']['*'];
					c = c.replace(/\[\[Kategorie:[A-Za-z]*\]\]/g, '');
					c = $.parseJSON(c);
					if(c.AutoBarcodeParameter === undefined)
						return;
					c = c.AutoBarcodeParameter;
					// Check prefix matches
					if(c.prefix !== prefix)
						return;
					reference[prefix] = c.reference;
					for(i = c.from; i <= c.to; i++) {
						pages[prefix][i] = 0;
					}
					absMinPage[prefix] = c.from;
					absMaxPage[prefix] = c.to;
					if(c.range['0'] !== undefined) {
						if(DEBUGLEVEL >= 1)
							console.log(prefix + ': Multiple white areas detected');
						for(var r in c.range) {
							if(c.range[r].from === undefined || c.range[r].to === undefined)
								continue;
							if(DEBUGLEVEL >= 1)
								console.log(prefix + ': Range: ' + c.range[r].from + ' to ' + c.range[r].to);
							for(i = c.range[r].from; i <= c.range[r].to; i++) {
								pages[prefix][i] = 1;
							}
						}
					} else {
						if(DEBUGLEVEL >= 1)
							console.log(prefix + ': Single white area detected');
						for(i = c.range.from; i <= c.range.to; i++) {
							pages[prefix][i] = 1;
						}
					}
					maxPage = i;
 
					pageCounter[prefix].current = 0;
					pageCounter[prefix].max = maxPage / 100;
					secondAjaxQuery(prefix);
					if(DEBUGLEVEL >= 1) {
						console.log('reference[' + prefix + '] = ' + reference[prefix]);
						console.log('absMinPage[' + prefix + '] = ' + absMinPage[prefix]);
						console.log('absMaxPage[' + prefix + '] = ' + absMaxPage[prefix]);
						console.log(prefix + ' maxPage = ' + maxPage);
						console.log('pageCounter[' + prefix + '].current = ' + pageCounter[prefix].current);
						console.log('pageCounter[' + prefix + '].max = ' + pageCounter[prefix].max);
					}
				}
			});
}
 
function secondAjaxQuery(prefix)
{
	var title = prefix + "/" + pageCounter[prefix].current;
	if(DEBUGLEVEL >= 3)
		console.log('Loading all pages starting with "' + title + '"');
	$.getJSON(API + "?action=query&generator=allpages&gaplimit=500&gapprefix=" + title + "&prop=categories&cllimit=max&format=json&callback=?",
			function(data) {
				appendToPages(data, prefix);
				if(++pageCounter[prefix].current <= pageCounter[prefix].max)
					secondAjaxQuery(prefix);
				else
					$('#autobarcode' + prefix).svg({onLoad: generateBarcode});
	});
}
 
function appendToPages(data, prefix)
{
	if(data === undefined || data.query === undefined || data.query.pages === undefined)
		return;
	for (var z in data.query.pages) {
		var title = data.query.pages[z].title;
		var categories = data.query.pages[z].categories;
 
		var catCount = 0;
		var val = 2;
 
		for(v in categories) {
			if(categories[v]['title'] === 'Kategorie:Plagiatsseite' || categories[v]['title'] == 'Kategorie:' + prefix)
				catCount++;
			if(categories[v]['title'] === 'Kategorie:Gt50')
				val = val < 3 ? 3 : val;
			if(categories[v]['title'] === 'Kategorie:Gt75')
				val = 4;
		}
 
		// Convert "Xx/023" to 23
		var pageNum = parseInt(title.substr(prefix.length+1), 10);
 
		// Only set if both Kategorie:Plagiatsseite and Kategorie:prefix were set.
		if(catCount === 2)
			pages[prefix][pageNum] = val;

		if(DEBUGLEVEL >= 3 && catCount === 2)
			console.log('pages[' + prefix + '][' + pageNum + '] = ' + pages[prefix][pageNum]);
	}
}
 
function generateBarcode(svg)
{
	var prefix = $(this).attr('id').substr('autobarcode'.length);
 
	var stroke = WIDTH / (absMaxPage[prefix] - absMinPage[prefix] + 1);
 
	addMouseHandler($(this), prefix, stroke, svg);
 
	var currentColor = colors[pages[prefix][absMinPage[prefix]]];
	var lastIndex = absMinPage[prefix];
 
	var i;
	for(i = absMinPage[prefix]; i <= absMaxPage[prefix]; i++)
		if(colors[pages[prefix][i]] !== currentColor || i === absMaxPage[prefix]) { // New block starts, so draw old one
			var x = (lastIndex - absMinPage[prefix]) * stroke;
			var barWidth = (i - lastIndex + (i === absMaxPage[prefix] ? 1 : 0)) * stroke;
			svg.rect(x + LEFTRIGHTMARGIN, HEADER, barWidth, HEIGHT, {fill: currentColor});
			currentColor = colors[pages[prefix][i]];
			lastIndex = i;
		}
 
	// draw two surrounding lines
	svg.line(0, HEADER, WIDTH + 2*LEFTRIGHTMARGIN, HEADER, {strokeWidth: 1, stroke: BLACK});
	svg.line(0, HEADER+HEIGHT, WIDTH + 2*LEFTRIGHTMARGIN, HEADER+HEIGHT, {strokeWidth: 1, stroke: BLACK});
 
	var modulus = (absMaxPage[prefix] - absMinPage[prefix] <= 400 ? 10 : 20);
 
	for(i = absMinPage[prefix]; i <= absMaxPage[prefix]; i++) {
		if(i%modulus === 0 && i%(2*modulus) !== 0) {
			var x = (i - absMinPage[prefix]) * stroke + stroke/2 + LEFTRIGHTMARGIN;
			svg.line(x, HEADER+HEIGHT, x, HEADER+HEIGHT+CHIPLENGTH, {strokeWidth: 1, stroke: BLACK});
		}
		if(i%(2*modulus) === 0) {
			var x = (i - absMinPage[prefix]) * stroke + stroke/2 + LEFTRIGHTMARGIN;
			svg.line(x, HEADER+HEIGHT, x, HEADER+HEIGHT+2*CHIPLENGTH, {strokeWidth: 1, stroke: BLACK});
			var g = svg.group({transform: "translate(" + x + ", " + (HEADER+HEIGHT+2*CHIPLENGTH+TEXTBEFOREEDGE_FIX) + ")"});
			svg.text(g, i.toString(), {fontFamily: FONT, fontSize: FONTSIZE, textAnchor: "middle" });
		}
	}
 
	generateCaption(svg, prefix);
}
 
function generateCaption(svg, prefix)
{
	var totalRelevantPages = 0;
	var numPlagPages = 0;
	for(var i = absMinPage[prefix]; i <= absMaxPage[prefix]; i++) {
		if(pages[prefix][i] >= 1)
			totalRelevantPages++;
		if(pages[prefix][i] >= 2)
			numPlagPages++;
	}
	var plagPercent = Math.round(numPlagPages / totalRelevantPages * 100 * 10)/10;
	var g = svg.group({transform: "translate(" + (WIDTH/2 + LEFTRIGHTMARGIN) + ", " + (HEADER - TEXTAFTEREDGE_FIX) + ")"});
	headString = TEXTA + reference[prefix] + ": " + numPlagPages + ", d.h. " + plagPercent + " %";
	svg.text(g, headString, {fontFamily: FONT, fontSize: FONTSIZE, textAnchor: "middle"});
	var g = svg.group({transform: "translate(" + (WIDTH/2 + LEFTRIGHTMARGIN) + ", " + (HEADER + HEIGHT + 2*CHIPLENGTH + 1.2*SKIP + TEXTBEFOREEDGE_FIX) + ")"});
	var texts = svg.createText();
	var t = texts.string('Seitenzahlen').span('Stand: ' + TIMESTRING, {dx: BETWEENTEXTSPACE }).span('Quelle: vroniplag.wikia.org/de/wiki/' + prefix, {dx: BETWEENTEXTSPACE});
	svg.text(g, 0, 0, t, {fontFamily: FONT, fontSize: FONTSIZE, textAnchor: "middle"});
 
	var fontProp = {fontFamily: FONT, fontSize: FONTSIZE, textAnchor: "left"};
	svg.rect(LEFTRIGHTMARGIN + SKIP, HEADER+HEIGHT+2*CHIPLENGTH + 3*SKIP, 1.5*SKIP, 1.5*SKIP, {fill: BLUE});
	svg.text(LEFTRIGHTMARGIN + 4*SKIP, HEADER+HEIGHT+2*CHIPLENGTH + 4*SKIP + MIDDLE_FIX, TEXTB, fontProp);
	svg.rect(LEFTRIGHTMARGIN + SKIP + WIDTH/2, HEADER+HEIGHT+2*CHIPLENGTH + 3*SKIP, 1.5*SKIP, 1.5*SKIP, {fill: BLACK});
	svg.text(LEFTRIGHTMARGIN + 4*SKIP + WIDTH/2, HEADER+HEIGHT+2*CHIPLENGTH + 4*SKIP + MIDDLE_FIX, TEXTC, fontProp);
	svg.rect(LEFTRIGHTMARGIN + SKIP, HEADER+HEIGHT+2*CHIPLENGTH + 6*SKIP, 1.5*SKIP, 1.5*SKIP, {fill: DARKRED});
	svg.text(LEFTRIGHTMARGIN + 4*SKIP, HEADER+HEIGHT+2*CHIPLENGTH + 7*SKIP + MIDDLE_FIX, TEXTD, fontProp);
	svg.rect(LEFTRIGHTMARGIN + SKIP + WIDTH/2, HEADER+HEIGHT+2*CHIPLENGTH + 6*SKIP, 1.5*SKIP, 1.5*SKIP, {fill: BRIGHTRED});
	svg.text(LEFTRIGHTMARGIN + 4*SKIP + WIDTH/2, HEADER+HEIGHT+2*CHIPLENGTH + 7*SKIP + MIDDLE_FIX, TEXTE, fontProp);
	svg.text(svg.link("https://vroniplag.wikia.org/de/wiki/VroniPlag_Wiki:Grundlagen/Barcode"), 630, 240, "Wie liest man diese Grafik?", {fontFamily: FONT, fontSize: "8pt", textAnchor: "end", fill: "#0A3073"});
}
 
function doubleZeroPrefix(x) {
	return (x < 10 ? '00' + x : (x < 100 ? '0' + x : x));
}
 
function getPageNumberFromMouse(div, x, y, prefix, stroke)
{
	if(y >= 0 && y < HEIGHT && x >= 0 && x < WIDTH) { // Click on barcode area
		i = Math.round((x / stroke) - .5) + absMinPage[prefix];
		if(colors[pages[prefix][i]] === BLACK || colors[pages[prefix][i]] === DARKRED || colors[pages[prefix][i]] === BRIGHTRED) {
			page = '/' + doubleZeroPrefix(i);
		} else {
			page = '';
		}
	} else
		page = '';
	return page;
}
 
function addMouseHandler(div, prefix, stroke, svg)
{
	div.bind('mouseenter', function() {
		div.css('cursor','pointer');
	});
	div.bind('mouseleave', function() {
		div.css('cursor','auto');
		var g = svg.getElementById('caption');
		if(g != null)
			svg.remove(g);
	});
 
	div.bind('click', function (event) {
		var x = event.pageX - div.offset().left - LEFTRIGHTMARGIN;
		var y = event.pageY - div.offset().top - HEADER;
		var page = getPageNumberFromMouse(div, x, y, prefix, stroke);
 
		if(DEBUGLEVEL >= 2)
			console.log('https://vroniplag.wikia.org/de/wiki/' + prefix + page + ' (' + (event.pageX - div.offset().left - LEFTRIGHTMARGIN) + ', ' + (event.pageY - div.offset().top - HEADER) + ', ' + stroke + ')');
		location.href = 'https://vroniplag.wikia.org/de/wiki/' + prefix + page;
	});
 
	div.bind('mousemove', function(event) {
		var x = event.pageX - div.offset().left - LEFTRIGHTMARGIN;
		var y = event.pageY - div.offset().top - HEADER;
 
		setTimeout(function() {
			var page = getPageNumberFromMouse(div, x, y, prefix, stroke);
			var g = svg.getElementById('caption');
			if(g != null)
				svg.remove(g);
			if(page !== '') {
				var xTrans = (x + BOXOFFSETX);
				var dx = xTrans + BOXX/2 - 2*LEFTRIGHTMARGIN - WIDTH + 1;
				if(dx > 0)
					xTrans -= dx;
				var g = svg.group(null, 'caption', {transform: "translate(" + xTrans + "," + (y + BOXOFFSETY) + ")"});
				svg.rect(g, -BOXX/2, -BOXY/2, BOXX, BOXY, {fill: BOXCOLOR, stroke: BLACK, strokeWidth: 1});
				svg.text(g, 0, TEXTOFFSETY, prefix + page, {fontFamily: FONT, fontSize: FONTSIZE, textAnchor: "middle"});
			}
		}, TIMEOUT);
	});
}