MediaWiki:Gadget-owidslider.js
This page is loaded as a part of the owidslider gadget, which is enabled by default. There seems to be an accompanying .css page at MediaWiki:Gadget-owidslider.css.
// 2025-08-09 Forked from https://mdwiki.org/wiki/MediaWiki:Gadget-owidslider.js (Creative Commons Attribution-ShareAlike 3.0 and 4.0 International Public License)
// Script written by Hassan.m.amin for WikiProject Med Foundation based on earlier OWIDSlider script by Bawolff and Hellerhoff.
var OWID_COUNTRY_CODES = {
Afghanistan: "AFG",
"Åland-Islands": "ALA",
Albania: "ALB",
Algeria: "DZA",
"American-Samoa": "ASM",
Andorra: "AND",
Angola: "AGO",
Anguilla: "AIA",
Antarctica: "ATA",
"Antigua-and-Barbuda": "ATG",
Argentina: "ARG",
Armenia: "ARM",
Aruba: "ABW",
Australia: "AUS",
Austria: "AUT",
Azerbaijan: "AZE",
Bahamas: "BHS",
Bahrain: "BHR",
Bangladesh: "BGD",
Barbados: "BRB",
Belarus: "BLR",
Belgium: "BEL",
Belize: "BLZ",
Benin: "BEN",
Bermuda: "BMU",
Bhutan: "BTN",
Bolivia: "BOL",
"Bonaire,-Sint-Eustatius-and-Saba": "BES",
"Bosnia-and-Herzegovina": "BIH",
Botswana: "BWA",
"Bouvet-Island": "BVT",
Brazil: "BRA",
"British-Indian-Ocean-Territory": "IOT",
Brunei: "BRN",
Bulgaria: "BGR",
"Burkina-Faso": "BFA",
Burundi: "BDI",
Cambodia: "KHM",
Cameroon: "CMR",
Canada: "CAN",
"Cape-Verde": "CPV",
"Cayman-Islands": "CYM",
"Central-African-Republic": "CAF",
Chad: "TCD",
Chile: "CHL",
China: "CHN",
"Christmas-Island": "CXR",
"Cocos-(Keeling)-Islands": "CCK",
Colombia: "COL",
Comoros: "COM",
Congo: "COG",
"Democratic-Republic-of-Congo": "COD",
"Cook-Islands": "COK",
"Costa-Rica": "CRI",
"Cote-d'Ivoire": "CIV",
Croatia: "HRV",
Cuba: "CUB",
Curaçao: "CUW",
Cyprus: "CYP",
Czechia: "CZE",
Denmark: "DNK",
Djibouti: "DJI",
Dominica: "DMA",
"Dominican-Republic": "DOM",
Ecuador: "ECU",
Egypt: "EGY",
"El-Salvador": "SLV",
"Equatorial-Guinea": "GNQ",
Eritrea: "ERI",
Estonia: "EST",
Ethiopia: "ETH",
"Falkland-Islands-(Malvinas)": "FLK",
"Faroe-Islands": "FRO",
Fiji: "FJI",
Finland: "FIN",
France: "FRA",
"French-Guiana": "GUF",
"French-Polynesia": "PYF",
"French-Southern-Territories": "ATF",
Gabon: "GAB",
Gambia: "GMB",
Georgia: "GEO",
Germany: "DEU",
Ghana: "GHA",
Gibraltar: "GIB",
Greece: "GRC",
Greenland: "GRL",
Grenada: "GRD",
Guadeloupe: "GLP",
Guam: "GUM",
Guatemala: "GTM",
Guernsey: "GGY",
Guinea: "GIN",
"Guinea-Bissau": "GNB",
Guyana: "GUY",
Haiti: "HTI",
"Heard-Island-and-McDonald-Islands": "HMD",
"Holy-See-(Vatican-City-State)": "VAT",
Honduras: "HND",
"Hong-Kong": "HKG",
Hungary: "HUN",
Iceland: "ISL",
India: "IND",
Indonesia: "IDN",
Iran: "IRN",
Iraq: "IRQ",
Ireland: "IRL",
"Isle-of-Man": "IMN",
Israel: "ISR",
Italy: "ITA",
Jamaica: "JAM",
Japan: "JPN",
Jersey: "JEY",
Jordan: "JOR",
Kazakhstan: "KAZ",
Kenya: "KEN",
Kiribati: "KIR",
"North-Korea": "PRK",
"South-Korea": "KOR",
Kuwait: "KWT",
Kyrgyzstan: "KGZ",
Laos: "LAO",
Latvia: "LVA",
Lebanon: "LBN",
Lesotho: "LSO",
Liberia: "LBR",
Libya: "LBY",
Liechtenstein: "LIE",
Lithuania: "LTU",
Luxembourg: "LUX",
Macao: "MAC",
"North-Macedonia": "MKD",
Madagascar: "MDG",
Malawi: "MWI",
Malaysia: "MYS",
Maldives: "MDV",
Mali: "MLI",
Malta: "MLT",
"Marshall-Islands": "MHL",
Martinique: "MTQ",
Mauritania: "MRT",
Mauritius: "MUS",
Mayotte: "MYT",
Mexico: "MEX",
"Micronesia-(country)": "FSM",
Moldova: "MDA",
Monaco: "MCO",
Mongolia: "MNG",
Montenegro: "MNE",
Montserrat: "MSR",
Morocco: "MAR",
Mozambique: "MOZ",
Myanmar: "MMR",
Namibia: "NAM",
Nauru: "NRU",
Nepal: "NPL",
Netherlands: "NLD",
"New-Caledonia": "NCL",
"New-Zealand": "NZL",
Nicaragua: "NIC",
Niger: "NER",
Nigeria: "NGA",
Niue: "NIU",
"Norfolk-Island": "NFK",
"Northern-Mariana-Islands": "MNP",
Norway: "NOR",
Oman: "OMN",
Pakistan: "PAK",
Palau: "PLW",
"Palestinian-Territory,-Occupied": "PSE",
Panama: "PAN",
"Papua-New-Guinea": "PNG",
Paraguay: "PRY",
Peru: "PER",
Philippines: "PHL",
Pitcairn: "PCN",
Poland: "POL",
Portugal: "PRT",
"Puerto-Rico": "PRI",
Qatar: "QAT",
Réunion: "REU",
Romania: "ROU",
Russia: "RUS",
Rwanda: "RWA",
"Saint-Barthélemy": "BLM",
"Saint-Helena,-Ascension-and-Tristan-da-Cunha": "SHN",
"Saint-Kitts-and-Nevis": "KNA",
"Saint-Lucia": "LCA",
"Saint-Martin-(French-part)": "MAF",
"Saint-Pierre-and-Miquelon": "SPM",
"Saint-Vincent-and-the-Grenadines": "VCT",
Samoa: "WSM",
"San-Marino": "SMR",
"Sao-Tome-and-Principe": "STP",
"Saudi-Arabia": "SAU",
Senegal: "SEN",
Serbia: "SRB",
Seychelles: "SYC",
"Sierra-Leone": "SLE",
Singapore: "SGP",
"Sint-Maarten-(Dutch-part)": "SXM",
Slovakia: "SVK",
Slovenia: "SVN",
"Solomon-Islands": "SLB",
Somalia: "SOM",
"South-Africa": "ZAF",
"South-Georgia-and-the-South-Sandwich-Islands": "SGS",
"South-Sudan": "SSD",
Spain: "ESP",
"Sri-Lanka": "LKA",
Sudan: "SDN",
Suriname: "SUR",
"Svalbard-and-Jan-Mayen": "SJM",
Eswatini: "SWZ",
Sweden: "SWE",
Switzerland: "CHE",
Syria: "SYR",
"Taiwan,-Province-of-China": "TWN",
Tajikistan: "TJK",
Tanzania: "TZA",
Thailand: "THA",
"East-Timor": "TLS",
Togo: "TGO",
Tokelau: "TKL",
Tonga: "TON",
"Trinidad-and-Tobago": "TTO",
Tunisia: "TUN",
Turkey: "TUR",
Turkmenistan: "TKM",
"Turks-and-Caicos-Islands": "TCA",
Tuvalu: "TUV",
Uganda: "UGA",
Ukraine: "UKR",
"United-Arab-Emirates": "ARE",
"United-Kingdom": "GBR",
"United-States": "USA",
"United-States-Minor-Outlying-Islands": "UMI",
Uruguay: "URY",
Uzbekistan: "UZB",
Vanuatu: "VUT",
Venezuela: "VEN",
Vietnam: "VNM",
"Virgin-Islands,-British": "VGB",
"Virgin-Islands,-U.S.": "VIR",
"Wallis-and-Futuna": "WLF",
"Western-Sahara": "ESH",
Yemen: "YEM",
Zambia: "ZMB",
Zimbabwe: "ZWE",
};
var OWID_WIKIDATA_COUNTRY_MAP = {
"frenchguiana": "Q3769",
"frenchsouthernterritories": "Q129003",
"kosovo": "Q1246",
"liechtenstein": "Q347",
"newcaledonia": "Q33788",
"westernsahara": "Q6250",
"russia": "Q159",
"unitedstates": "Q30",
"canada": "Q16",
"china": "Q148",
"brazil": "Q155",
"greenland": "Q223",
"australia": "Q408",
"fiji": "Q712",
"india": "Q668",
"indonesia": "Q252",
"argentina": "Q414",
"kazakhstan": "Q232",
"norway": "Q20",
"mexico": "Q96",
"algeria": "Q262",
"democraticrepublicofcongo": "Q974",
"mongolia": "Q711",
"saudiarabia": "Q851",
"chile": "Q298",
"iran": "Q794",
"mali": "Q912",
"japan": "Q17",
"peru": "Q419",
"pakistan": "Q843",
"sudan": "Q1049",
"libya": "Q1016",
"southafrica": "Q258",
"colombia": "Q739",
"niger": "Q1032",
"sweden": "Q34",
"mozambique": "Q1029",
"ethiopia": "Q115",
"angola": "Q916",
"chad": "Q657",
"myanmar": "Q836",
"namibia": "Q1030",
"bolivia": "Q750",
"mauritania": "Q1025",
"venezuela": "Q717",
"newzealand": "Q664",
"uzbekistan": "Q265",
"ukraine": "Q212",
"somalia": "Q1045",
"france": "Q142",
"afghanistan": "Q889",
"italy": "Q38",
"papuanewguinea": "Q691",
"philippines": "Q928",
"thailand": "Q869",
"turkey": "Q43",
"tanzania": "Q924",
"malaysia": "Q833",
"egypt": "Q79",
"centralafricanrepublic": "Q929",
"nigeria": "Q1033",
"zambia": "Q953",
"finland": "Q33",
"micronesia": "Q3359409",
"vietnam": "Q881",
"turkmenistan": "Q874",
"southsudan": "Q958",
"madagascar": "Q1019",
"morocco": "Q1028",
"spain": "Q29",
"botswana": "Q963",
"cameroon": "Q1009",
"kenya": "Q114",
"iraq": "Q796",
"unitedkingdom": "Q145",
"oman": "Q842",
"germany": "Q183",
"paraguay": "Q733",
"yemen": "Q805",
"congo": "Q971",
"laos": "Q819",
"poland": "Q36",
"zimbabwe": "Q954",
"belarus": "Q184",
"greece": "Q41",
"kyrgyzstan": "Q813",
"romania": "Q218",
"burkinafaso": "Q965",
"guinea": "Q1006",
"eritrea": "Q986",
"cotedivoire": "Q1008",
"ecuador": "Q736",
"cuba": "Q241",
"gabon": "Q1000",
"northkorea": "Q423",
"guyana": "Q734",
"syria": "Q858",
"nepal": "Q837",
"iceland": "Q189",
"tajikistan": "Q863",
"uganda": "Q1036",
"tunisia": "Q948",
"ghana": "Q117",
"tuvalu": "Q672",
"bangladesh": "Q902",
"senegal": "Q1041",
"uruguay": "Q77",
"solomonislands": "Q685",
"malawi": "Q1020",
"croatia": "Q224",
"cambodia": "Q424",
"azerbaijan": "Q227",
"austria": "Q40",
"nicaragua": "Q811",
"honduras": "Q783",
"hungary": "Q28",
"bulgaria": "Q219",
"benin": "Q962",
"jordan": "Q810",
"suriname": "Q730",
"unitedarabemirates": "Q878",
"portugal": "Q45",
"czechia": "Q213",
"latvia": "Q211",
"georgia": "Q1428",
"guatemala": "Q774",
"serbia": "Q403",
"liberia": "Q1014",
"southkorea": "Q884",
"panama": "Q804",
"ireland": "Q27",
"lithuania": "Q37",
"denmark": "Q35",
"slovakia": "Q214",
"estonia": "Q191",
"netherlands": "Q55",
"costarica": "Q800",
"moldova": "Q217",
"bosniaaherzegovin": "Q225",
"sierraleone": "Q1044",
"togo": "Q945",
"switzerland": "Q39",
"dominicanrepublic": "Q786",
"srilanka": "Q854",
"armenia": "Q399",
"belgium": "Q31",
"bahamas": "Q778",
"capeverde": "Q1011",
"taiwan": "Q865",
"israel": "Q801",
"haiti": "Q790",
"albania": "Q222",
"bhutan": "Q917",
"guineabissau": "Q1007",
"lesotho": "Q1013",
"tonga": "Q678",
"slovenia": "Q215",
"burundi": "Q967",
"northmacedonia": "Q221",
"rwanda": "Q1037",
"montenegro": "Q236",
"elsalvador": "Q792",
"djibouti": "Q977",
"belize": "Q242",
"kuwait": "Q817",
"easttimor": "Q574",
"cyprus": "Q229",
"equatorialguinea": "Q983",
"vanuatu": "Q686",
"lebanon": "Q822",
"marshallislands": "Q709",
"eswatini": "Q1050",
"gambia": "Q1005",
"brunei": "Q921",
"jamaica": "Q766",
"palestine": "Q219060",
"qatar": "Q846",
"comoros": "Q970",
"puertorico": "Q1183",
"trinidadandtobago": "Q754",
"samoa": "Q683",
"luxembourg": "Q32",
"mauritius": "Q1027",
"singapore": "Q334",
"antiguaandbarbuda": "Q781",
"maldives": "Q826",
"kiribati": "Q710",
"saotomeandprincipe": "Q1039",
"dominica": "Q784",
"saintkittsandnevis": "Q763",
"bahrain": "Q398",
"saintlucia": "Q760",
"andorra": "Q228",
"barbados": "Q244",
"seychelles": "Q1042",
"malta": "Q233",
"saintvincentandthegrenadines": "Q757",
"grenada": "Q769",
"palau": "Q695",
"sanmarino": "Q238",
"nauru": "Q697",
"monaco": "Q235"
};
var OWID_WIKIDATA_COUNTRY_MAP_REVERSE = Object.fromEntries(
Object.entries(OWID_WIKIDATA_COUNTRY_MAP).map(function([key, value]) {
return [value, key];
})
)
var OWIDSlider = {
messages: {
en: {
OWIDSliderFrameBack: "Back",
OWIDSliderFrameBackDesktop: "Return to article",
OWIDSliderFrameImageCredit: "Media credits",
OWIDSliderFrameCopyLink: "Copy Direct Link",
OWIDSliderSliderLabel: "Select image",
OWIDSliderPlayLabel: "Show slideshow",
OWIDSliderLoading: "Loading... $1%",
},
},
init: function () {
OWIDSlider.setMessages();
mw.hook("wikipage.content").add(OWIDSlider.addPlayButton);
},
purify: function (dirty) {
// We use SVGs in an html context not XML, so we need to be sure they are safe.
// This is a bit stricter than necessary, but owid graphs should have all this.
DOMPurify.addHook( 'uponSanitizeAttribute', ( node, hook ) => {
if ( [ 'font', 'clip-path', 'fill', 'filter', 'marker', 'marker-end', 'marker-mid', 'marker-start', 'mask', 'stroke', 'cursor' ].includes( hook.attrName ) ) {
if (hook.attrValue.match( /url\((?!\s*['"]?#)|image-set\(|src\(/i ) ) {
hook.keepAttr = false;
}
}
if ( [ 'href', 'xlink:href' ].includes( hook.attrName ) ) {
hook.keepAttr = false;
}
} );
DOMPurify.addHook( 'uponSanitizeElement', ( node ) => {
if ( node && node.tagName && node.tagName.toLowerCase() === 'style' && node.textContent.match( /url\((?!\s*['"]?#)|image-set\(|src\(/i ) ) {
node.textContent = '';
}
} );
var res = DOMPurify.sanitize(dirty, {USE_PROFILES: {svg: true}});
DOMPurify.removeHook( 'uponSanitizeAttribute' );
DOMPurify.removeHook( 'uponSanitizeElement' );
return res;
},
/**
* Set the interface messages in the most appropriate language
*
* Favor the user language first, the page language second, the wiki language third, and lastly English
*/
setMessages: function () {
var userLanguage = mw.config.get("wgUserLanguage");
if (userLanguage in OWIDSlider.messages) {
mw.messages.set(OWIDSlider.messages[userLanguage]);
return;
}
var pageLanguage = mw.config.get("wgPageContentLanguage");
if (pageLanguage in OWIDSlider.messages) {
mw.messages.set(OWIDSlider.messages[pageLanguage]);
return;
}
var contentLanguage = mw.config.get("wgContentLanguage");
if (contentLanguage in OWIDSlider.messages) {
mw.messages.set(OWIDSlider.messages[contentLanguage]);
return;
}
mw.messages.set(OWIDSlider.messages.en);
},
parseQueryParams: function () {
return Object.fromEntries( new URLSearchParams( location.search ) );
},
/**
* Append a play button ► to every OWIDSlider div
*/
addPlayButton: function ($content) {
var queryParams = OWIDSlider.parseQueryParams();
$content.find("div.OWIDSlider").each(function () {
var $frame = $(this);
var viewerInfo = $frame.data("owidsliderConfig");
if (!(viewerInfo instanceof Array)) {
return;
}
// match both img and span for broken files in galleries
$frame
.find(".mw-file-element, .lazy-image-placeholder")
.each(function (i) {
if (
viewerInfo[i] instanceof Object &&
typeof viewerInfo[i].list === "string"
) {
// We used to use unicode ▶, but was rendered inconsitently between browsers, so switch to svg.
var $play = $("<button></button>")
.attr({
type: "button",
class: "OWIDSlider-play",
title: mw.msg("OWIDSliderPlayLabel"),
"aria-label": mw.msg("OWIDSliderPlayLabel"),
})
.html( '<svg viewbox="0 0 10 10"><circle class="circle" cx="5" cy="5" r="5"></circle><polygon class="triangle" points="2.5,2 8.5,5 2.5,8"></polygon></svg>' );
var data = viewerInfo[i];
$play.on("click", function (e) {
e.preventDefault();
if (
!queryParams.owid_list ||
queryParams.owid_list.toLowerCase() !=
decodeURIComponent(data.list.toLowerCase())
) {
var newUrl = new URL(window.location.href);
newUrl.searchParams.set("owid_list", encodeURIComponent(data.list));
if (data.language && data.language != "") {
newUrl.searchParams.set("owid_language", encodeURIComponent(data.language));
}
window.history.pushState({}, "", newUrl);
OWIDSlider.showFrame(data);
} else {
OWIDSlider.showFrame(data);
}
});
var $this = $(this);
$this.parent().css({
display: "inline-block",
height: "fit-content",
position: "relative",
});
$this.after($play);
var listMatch = queryParams.owid_list && data.list &&
decodeURIComponent(queryParams.owid_list.toLowerCase()) == decodeURIComponent(data.list.toLowerCase());
var langMatch = (
// Handle language cases
// 1. No language in uri and this doesnt have language
(!data.language && !queryParams.owid_language) ||
// 2. Language in uri and this has language
(data.language && queryParams.owid_language && data.language == decodeURIComponent(queryParams.owid_language.toLowerCase()))
);
if (
listMatch && langMatch
) {
OWIDSlider.showFrame(data);
}
}
});
});
},
showFrame: function (data) {
// Load dependencies
var stateWindow = mw.loader.getState("oojs-ui-windows");
var stateDomPurify = mw.loader.getState("dompurify");
if (stateWindow !== "ready" && stateDomPurify !== "ready") {
mw.loader.using(["oojs-ui-windows", "dompurify"], function () {
setTimeout(function () {
OWIDSlider.showFrame(data);
}, 500);
});
return;
}
var $viewer = OWIDSlider.getViewer();
var backButtonTitle = mw.msg("OWIDSliderFrameBack");
if (window.outerWidth > 600) {
backButtonTitle = mw.msg("OWIDSliderFrameBackDesktop");
}
var config = {
size: "full",
// This doesn't seem to work.
classes: "OWIDSliderDialog",
title: typeof data.title === "string" ? data.title : false,
actions: [
{
action: "accept",
label: backButtonTitle,
flags: ["primary", "progressive"],
},
],
message: $viewer,
};
var dialog = function (config) {
dialog.super.call(this, config);
this.$element.addClass("OWIDSliderDialog");
};
OO.inheritClass(dialog, OO.ui.MessageDialog);
dialog.static.name = "OWIDSlider";
OO.ui.getWindowManager().addWindows([new dialog()]);
// copied from OO.ui.alert definition.
var win = OO.ui.getWindowManager().openWindow("OWIDSlider", config);
win.closing.done(function () {
var newUrl = new URL(window.location.href);
newUrl.searchParams.delete("owid_list");
newUrl.searchParams.delete("owid_language");
window.history.pushState({}, "", newUrl);
});
win.closed.done(function () {
// There has to be a better way to do this.
if (window.OWIDSliderCancel) {
window.OWIDSliderCancel();
}
});
OWIDSlider.loadImages($viewer, data);
},
getViewer: function () {
var $viewer = $("<div></div>").attr({
class: "OWIDSlider-viewer OWIDSlider-loading",
});
// From https://commons.wikimedia.org/wiki/File:Loading_spinner.svg
$viewer.append(
'<svg xmlns="http://www.w3.org/2000/svg" aria-label="Loading..." viewBox="0 0 100 100" width="25%" height="25%" style="display:block;margin:auto"><rect fill="#555" height="6" opacity=".083" rx="3" ry="3" transform="rotate(-60 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".167" rx="3" ry="3" transform="rotate(-30 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".25" rx="3" ry="3" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".333" rx="3" ry="3" transform="rotate(30 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".417" rx="3" ry="3" transform="rotate(60 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".5" rx="3" ry="3" transform="rotate(90 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".583" rx="3" ry="3" transform="rotate(120 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".667" rx="3" ry="3" transform="rotate(150 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".75" rx="3" ry="3" transform="rotate(180 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".833" rx="3" ry="3" transform="rotate(210 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".917" rx="3" ry="3" transform="rotate(240 50 50)" width="25" x="72" y="47"/></svg>'
);
return $viewer;
},
loadImages: function ($viewer, data) {
var url = "";
var page = mw.Title.newFromText(data.list);
if (!page) {
console.log("Image stack error, invalid page " + data.list);
return;
}
if (data.location && data.location.toLowerCase() == "commons") {
var templateName = page.title;
var api = new mw.Api({
ajax: {
url: 'https://commons.wikimedia.org/w/api.php'
}
});
api.get({
action: 'parse',
page: data.list,
format: 'json',
prop: 'text',
origin: '*' // This helps with CORS
}).then(function(res) {
if (res.parse) {
const text = res.parse.text['*'];
return OWIDSlider.handlePage($viewer, data, text);
}
}).catch(function(error) {
console.error('Error:', error);
});
} else {
url = page.getUrl();
fetch(url)
.then(function (response) {
return response.text();
})
.then(function (text) {
return OWIDSlider.handlePage($viewer, data, text);
});
}
},
handlePage: function ($viewer, data, text) {
var parser = new DOMParser();
var listDoc = parser.parseFromString(text, "text/html");
var idSelector = mw.Title.newFromText(data.list).getFragment();
var listElm = listDoc.getElementById(idSelector);
if (!listElm || !listElm.dataset.owidSubids) {
console.log("Error finding element in list document", idSelector, listElm);
return;
}
var subIds = JSON.parse(listElm.dataset.owidSubids);
if (!subIds || typeof subIds !== "object") {
console.log("invalid owidsubids");
return;
}
var years = Object.create( null ),
imgMap = Object.create( null );
var min = 1e9,
max = -1e9,
width,
height,
viewMin;
var countriesUrls = Object.create( null );
var countriesInfoUrls = Object.create( null );
this.translatedCountryNames = Object.create(null);
for (var galleryName in subIds) {
var galleryId = subIds[galleryName];
var elm = listDoc.getElementById(galleryId);
if (!elm) {
throw new Error("Could not find gallery with id " + galleryId);
}
if (galleryName == "AllCountries") {
years[galleryName] = JSON.parse(elm.dataset.owidsliderCountry);
} else {
years[galleryName] = JSON.parse(elm.dataset.owidsliderYear);
}
if (
!(years[galleryName] instanceof Array) ||
years[galleryName].length < 1
) {
throw new Error("Invalid data-owidslider-years " + galleryId);
}
var imgs = elm.querySelectorAll(
'img.mw-file-element, span[typeof~="mw:Error"][typeof~="mw:File"]'
);
if (galleryName == "AllCountries") {
for (var j = 0; j < imgs.length; j++) {
if (imgs[j].nodeName !== "IMG") {
continue;
}
countriesUrls[years[galleryName][j]] = this.convertThumbUrlToOriginal(
imgs[j].getAttribute("src")
);
if (imgs[j].parentElement.href) {
countriesInfoUrls[years[galleryName][j]] = imgs[j].parentElement.href;
}
}
} else {
imgMap[galleryName] = [];
for (var i = 0; i < imgs.length; i++) {
if (
typeof years[galleryName][i] != "number" ||
imgs[i].nodeName !== "IMG"
) {
continue;
}
imgMap[galleryName][years[galleryName][i]] = imgs[i];
if (years[galleryName][i] < min) {
min = years[galleryName][i];
width = imgMap[galleryName][min].width;
height = imgMap[galleryName][min].height;
viewMin = galleryName;
}
if (years[galleryName][i] > max) {
max = years[galleryName][i];
}
}
}
}
if (min === 1e9) {
throw new Error("No images for slider");
}
var urls = this.getImagesUrls(imgMap);
var context = new OWIDSlider.Context(
$viewer,
data,
imgMap,
urls,
countriesUrls,
countriesInfoUrls,
width,
height,
min,
max,
viewMin
);
},
getSource: function (imgElm, width, height) {
// desired dimensions
var w = width * window.devicePixelRatio;
var h = height * window.devicePixelRatio;
// current candidate
var imgW = parseInt(imgElm.width);
var imgH = parseInt(imgElm.height);
// img tag width/height.
var originalW = imgW;
var originalH = imgH;
var src = imgElm.src;
if (imgW >= w && imgH >= h) {
return src;
}
var srcSets = imgElm.srcset.split(/\s*,\s*/);
for (var i = 0; i < srcSets.length; i++) {
var parts = srcSets[i].match(/^(\S+)\s+([0-9.])x\s*$/);
if (parts && parts.length === 3) {
var pixelRatio = parseFloat(parts[2]);
if (
(imgW < w && originalW * pixelRatio > imgW) ||
(imgW > w &&
originalW * pixelRatio - w >= 0 &&
originalW * pixelRatio < imgW)
) {
imgW = originalW * pixelRatio;
imgH = originalH * pixelRatio;
src = parts[1];
}
}
}
return src;
},
convertThumbUrlToOriginal: function (thumbUrl) {
var urlParts = thumbUrl.split("/");
var fileName = urlParts.filter(function (a) {
return a && a.includes(".svg");
})[0];
var fileNameIndex = urlParts.indexOf(fileName);
var hashes = urlParts.slice(fileNameIndex - 2, fileNameIndex);
var prefix = thumbUrl.split("thumb/")[0];
return prefix + hashes.join("/") + "/" + fileName;
},
getImagesUrls: function (imgs) {
var urls = Object.create( null );
for (var i in imgs) {
var region = [];
for (var j in imgs[i]) {
region[j] = {
url: this.convertThumbUrlToOriginal(imgs[i][j].getAttribute("src")),
};
}
urls[i] = region;
}
return urls;
},
doStats: function () {
if (window.OWIDSliderStatsAlreadyDone !== true) {
window.OWIDSliderStatsAlreadyDone = true;
const wiki = mw.config.get( 'wgDBname' );
const title = mw.config.get( 'wgTitle' );
const titlee = title.replace( / /g, '_' );
const page = encodeURIComponent( titlee ).replace( /[^a-zA-Z0-9_]/g, '_' ); // Alphanumeric and underscore only
const namespace = mw.config.get( 'wgNamespaceNumber' );
mw.track( 'stats.mediawiki_gadget_OWIDSlider_wiki_total', 1, { wiki: wiki } );
mw.track( 'stats.mediawiki_gadget_OWIDSlider_page_total', 1, { wiki: wiki, page: page, NS: namespace } );
}
},
copyExecCommand: function (text) {
var span = document.createElement("span");
span.textContent = text;
// Preserve consecutive spaces and newlines
span.style.whiteSpace = "pre";
span.style.webkitUserSelect = "auto";
span.style.userSelect = "all";
// Add the <span> to the page
document.body.appendChild(span);
var selection = window.getSelection();
var range = window.document.createRange();
selection.removeAllRanges();
range.selectNode(span);
selection.addRange(range);
// Copy text to the clipboard
var success = false;
try {
success = window.document.execCommand("copy");
} finally {
// Cleanup
selection.removeAllRanges();
window.document.body.removeChild(span);
}
return success;
},
copyText: function (text) {
if (navigator.clipboard) {
return navigator.clipboard
.writeText(text)
.then(function () {})
.catch(function (err) {
console.log("Error copying");
console.log(err);
OWIDSlider.copyExecCommand(text);
});
}
OWIDSlider.copyExecCommand(text);
},
Context: function (
$viewer,
config,
imgs,
urls,
countriesUrls,
countriesInfoUrls,
width,
height,
min,
max,
viewMin
) {
OWIDSlider.doStats();
this.svgUrls = urls;
this.countriesSvgUrls = countriesUrls;
this.countriesInfoUrls = countriesInfoUrls;
this.translatedCountryNames = Object.create(null);
this.$viewer = $viewer;
this.loop = !!config.loop;
this.start = typeof config.start === "number" ? config.start : 0;
this.urls = null;
this.infoUrls = null;
this.imgs = imgs;
this.min = min;
this.max = max;
this.viewMin = viewMin; // The view that has the min element
this.currentView = config.startingView
? config.startingView
: Object.keys(imgs)[0];
this.language = config.language ? config.language.trim() : "";
this.total = Object.keys(imgs[this.currentView]).length;
// for (var i in imgs) {
// this.total += Object.keys(imgs[i]).length;
// }
this.captionId =
typeof config.caption === "string" ? config.caption : false;
// Future TODO - make the size of image adaptive to screen size
// Future TODO - handle images of different sizes and aspect ratios.
this.width = config.width;
this.height = config.height;
if (this.width && !this.height) {
this.height = (this.width * height) / width;
}
if (!this.width && this.height) {
this.width = (this.height * width) / height;
}
this.imgWidth = width;
this.imgHeight = height;
this.currentImage =
this.start >= this.min && this.start <= this.max ? this.start : this.max;
this.pendingFrame = false;
this.$loading = $("#OWIDSliderLoading");
this.urlsLoaded = 0;
this.pendingTouches = Object.create( null );
this.prevImage = 0;
this.config = config;
this.init();
},
};
// This part is based on Hellerhoff's https://commons.wikimedia.org/wiki/MediaWiki:Gadget-OWIDSlider.js
OWIDSlider.Context.prototype = {
createLoader: function () {
var $loading = $("#OWIDSliderLoading");
if (!$loading.length) {
$loading = $("<div></div>").attr({
id: "OWIDSliderLoading",
role: "status",
});
$(document.body).append($loading);
}
$loading.text(mw.msg("OWIDSliderLoading", "0"));
return $loading;
},
init: function () {
this.$loading = this.createLoader();
var that = this;
// Chrome scrolls much faster than firefox
const SCROLL_SLOWDOWN = navigator.userAgent.includes("Chrome/") ? 5 : 2;
this.pendingScrollDelta = 0;
var containingWidth =
this.$viewer[0].parentElement.parentElement.parentElement.clientWidth;
var containingHeight =
this.$viewer[0].parentElement.parentElement.parentElement.clientHeight;
this.$viewer.empty();
this.$slider = $("<input>", {
type: "range",
min: that.min,
max: that.max,
value: this.currentImage,
}).on("input", function (e) {
that.currentImage = parseInt(e.target.value);
that.repaint();
});
this.$sliderYearPopup = $("<span></span>", {
class: "OWIDSliderSliderYearPopup",
}).css("visibility", "hidden");
this.$sliderRangeContainer = $("<span></span>", {
"aria-label": mw.msg("OWIDSliderSliderLabel"),
class: "OWIDSliderSlider",
})
.append(this.$slider)
.append(this.$sliderYearPopup);
this.$sliderContainer = $("<div></div>")
.attr({
class: "OWIDSliderSliderContainer",
})
.append($('<span id="OWIDSliderBegin"></span>').text(this.min))
.append(this.$sliderRangeContainer)
.append($('<span id="OWIDSliderEnd"></span>').text(this.max));
var handleTouchStart = this.handleTouchStart.bind(this);
var handleTouchMove = this.handleTouchMove.bind(this);
var handleTouchCancel = this.handleTouchCancel.bind(this);
var handleTouchEnd = this.handleTouchEnd.bind(this);
var touchElement = this.$viewer[0].parentElement.parentElement;
var opt = { passive: true };
// For now it seems like we don't have to cancel events. Unclear if we should
touchElement.addEventListener("touchstart", handleTouchStart, opt);
touchElement.addEventListener("touchmove", handleTouchMove, opt);
touchElement.addEventListener("touchend", handleTouchEnd, opt);
touchElement.addEventListener("touchcancel", handleTouchCancel, opt);
// Hacky!
window.OWIDSliderCancel = function () {
touchElement.removeEventListener("touchstart", handleTouchStart, opt);
touchElement.removeEventListener("touchmove", handleTouchMove, opt);
touchElement.removeEventListener("touchend", handleTouchEnd, opt);
touchElement.removeEventListener("touchcancel", handleTouchCancel, opt);
$(".OWIDSliderDialog").html("");
};
var $svgContainer = $('<div class="OWIDSliderSVGContainer"></div>');
this.$svgContainer = $svgContainer;
$svgContainer.on("mousewheel", function (event, delta) {
// Scroll is too fast (Esp. on chrome), so we buffer scroll events.
that.pendingScrollDelta += delta;
var realDelta = Math.floor(that.pendingScrollDelta / SCROLL_SLOWDOWN);
if (delta !== 0) {
// We reverse the direction of scroll.
that.currentImage -= realDelta > 2 ? 2 : realDelta;
that.pendingScrollDelta -= realDelta * SCROLL_SLOWDOWN;
that.repaint();
}
return false;
});
$svgContainer.on("mousedown", function (event) {
// prepare scroll by drag
mouse_y = event.screenY; // remember mouse-position
that.scrollobject = true; // set flag
return false;
});
$svgContainer.on("mouseup", function (event) {
that.scrollobject = false; // set flag
return false;
});
$svgContainer.on("mousemove", function (event) {
if (that.scrollobject && Math.abs(mouse_y - event.screenY) > 10) {
var offset = mouse_y < event.screenY ? 1 : -1;
mouse_y = event.screenY; // remember mouse-position for next event
that.currentImage += offset;
that.repaint();
}
return false;
});
this.$credit = $("<a></a>");
this.$credit.text(mw.msg("OWIDSliderFrameImageCredit"));
var $creditDiv = $('<div class="OWIDSliderCredit"></div>')
.append(this.$copyLink)
.append(this.$credit);
var $select = "";
if (Object.keys(this.imgs).length >= 0) {
$select = $("<select>")
.attr("id", "OWIDSliderViewSelector")
.attr("class", "owid-select");
for (var i in this.imgs) {
var optionName = i;
if (optionName == "NorthAmerica") {
optionName = "North America";
} else if (optionName == "SouthAmerica") {
optionName = "South America";
}
$select.append(
$("<option>")
.attr({ value: i, selected: this.currentView === i })
.text(optionName)
);
}
$select.change(function (e) {
that.currentView = e.target.value;
that.total = Object.keys(that.imgs[that.currentView]).length;
that.urlsLoaded = 0;
that.$loading = that.createLoader();
that.preload();
});
var selectContainer = $("<div>").attr("class", "owid-select-container");
var selectArrow = $("<span>").attr("class", "owid-select-arrow");
var selectLabel = $("<label>")
.attr("class", "owid-select-label")
.text("Select region");
selectContainer.append($select).append(selectArrow).append(selectLabel);
$select = selectContainer;
}
var $container = $('<div class="OWIDSliderImgContainer"></div>')
.append($select)
.append($svgContainer)
.append($creditDiv)
.append(this.$sliderContainer);
this.$countrySelect = $select;
this.$container = $container;
this.$svgContainer = $svgContainer;
this.$viewer.append($container);
var $wrapper = false;
if (this.captionId) {
var captionElm = document.getElementById(this.captionId);
if (captionElm) {
var newCaption = $(captionElm).clone();
newCaption.show();
$wrapper = $('<div class="OWIDSlider-caption"></div>').append(
newCaption
);
this.$viewer.append($wrapper);
}
}
this.cachedSvgs = Object.create( null );
this.cachedCountriesSvgs = Object.create( null );
this.getUrls();
//this.toggleImg();
this.preload();
if (this.language && this.language != "en") {
this.populateTranslatedCountriesNames();
}
this.$slider.focus();
},
getMaxImgDim: function () {
// This assumes that even on high-DPI displays, enlarging to 96dpi is ok.
var w = this.imgs[this.viewMin][this.min].width;
var h = this.imgs[this.viewMin][this.min].height;
if (this.imgs[this.viewMin][this.min].srcset.match(/\s2x\s*(,|$)/)) {
w *= 2;
h *= 2;
} else if (
this.imgs[this.viewMin][this.min].srcset.match(/\s1.5x\s*(,|$)/)
) {
w = Math.floor(1.5 * w);
h = Math.floor(1.5 * h);
}
return [w, h];
},
repaint: function () {
if (this.pendingFrame) {
return;
}
requestAnimationFrame(this.toggleImg.bind(this));
},
toggleImg: function () {
this.pendingFrame = true;
if (this.prevImage < this.currentImage) {
while (
this.currentImage < this.max &&
!this.imgs[this.currentView][this.currentImage]
) {
this.currentImage++;
}
// If we get to the end and its still not valid
while (
this.currentImage > this.min &&
!this.imgs[this.currentView][this.currentImage]
) {
this.currentImage--;
}
} else {
while (
this.currentImage > this.min &&
!this.imgs[this.currentView][this.currentImage]
) {
this.currentImage--;
}
while (
this.currentImage < this.max &&
!this.imgs[this.currentView][this.currentImage]
) {
this.currentImage++;
}
}
if (this.loop) {
if (this.currentImage < this.min) {
this.currentImage = this.max;
} else if (this.currentImage > this.max) {
this.currentImage = this.min;
}
} else {
if (this.currentImage < this.min) {
this.currentImage = this.min;
} else if (this.currentImage > this.max) {
this.currentImage = this.max;
}
}
this.prevImage = this.currentImage;
this.$slider[0].value = this.currentImage;
this.$slider[0].title = this.currentImage;
this.$credit[0].href = this.infoUrls[this.currentView][this.currentImage];
if (this.infoUrls[this.currentView][this.currentImage] === false) {
this.$credit.css("visibility", "hidden");
} else {
this.$credit.css("visibility", "visible");
}
var currentUrl = this.svgUrls[this.currentView][this.currentImage].url;
var that = this;
if (this.sliderYearPopupTimeout) {
clearInterval(this.sliderYearPopupTimeout);
}
this.$sliderYearPopup.text(this.currentImage);
var popupWidth = this.$sliderYearPopup.width() || 35;
if (popupWidth > 0) {
var popupLeft =
((this.currentImage - this.min) / (this.max - this.min)) * 100;
var calculatedPopupLeft =
"calc(" + popupLeft + "% " + "- " + (popupWidth / 2 + 10) + "px)";
this.$sliderYearPopup
.css("visibility", "visible")
.css("left", calculatedPopupLeft);
this.sliderYearPopupTimeout = setTimeout(function () {
that.$sliderYearPopup.css("visibility", "hidden");
clearTimeout(that.sliderYearPopupTimeout);
}, 5 * 1000);
}
this.setCurrentSvgImage(currentUrl, function () {
that.pendingFrame = false;
});
},
setCurrentSvgImage: function (svgUrl, callback) {
// Check for the new flow
if (this.svgYears && this.svgYears[this.currentView] && this.svgYears[this.currentView][this.currentImage] && this.firstSVGData) {
var svgEl = $(this.firstSVGData);
var countriesWithData = svgEl.find("#countries-with-data path,#countries-without-data path");
for (var i = 0; i<countriesWithData.length; i++) {
var fill = this.svgYears[this.currentView][this.currentImage][countriesWithData[i].getAttribute("id")];
if (fill) {
countriesWithData[i].setAttribute("fill", fill);
}
}
var urlEl = svgEl.find("#header > a");
if (urlEl.length && urlEl.attr("href")) {
urlEl.attr("href", urlEl.attr("href").replace(this.min, this.currentImage));
}
var titleEl = svgEl.find("#header > a text tspan");
if (titleEl) {
titleEl.text(titleEl.text().replace(this.min, this.currentImage));
}
svgEl = this.getScaledSvg(svgEl);
this.$svgContainer.html(svgEl);
this.attachSVGHandlers();
callback();
return;
}
if (this.cachedSvgs[svgUrl]) {
var svgEl = this.getScaledSvg(this.cachedSvgs[svgUrl]);
this.$svgContainer.html(svgEl);
this.attachSVGHandlers();
callback();
return;
}
var that = this;
fetch(svgUrl)
.then(function (resp) {
return resp.text();
})
.then(function (svgData) {
// We use SVG in an HTML not XML content, so we need to resanitize
svgData = OWIDSlider.purify( svgData );
that.cachedSvgs[svgUrl] = svgData;
var svgEl = that.getScaledSvg(svgData);
that.$svgContainer.html(svgEl);
that.attachSVGHandlers();
callback();
})
.catch(function (err) {
console.log("Error loading image", err);
});
},
getScaledSvg: function (content) {
var svgEl = $(content);
// If the svg content has comment, it's treated as a separate node
// So we need to extract just the svg
if (svgEl.length > 1) {
for (var i=0; i<svgEl.length; i++) {
if (svgEl[i].tagName == "svg") {
svgEl = $(svgEl[i]);
break;
}
}
}
svgEl.removeAttr("width");
svgEl.removeAttr("height");
var windowWidth = window.outerWidth;
var isMobile = windowWidth < 600;
// if (isMobile) {
// svgEl.attr("width", "100%");
// } else {
// svgEl.attr("height", "70vh");
// }
svgEl.css("max-width", "100%").css("max-height", "70vh");
// Update the viewBox
var viewBox = svgEl.attr("viewBox");
if (viewBox) {
var parts = viewBox.trim().split(" ");
parts[3] = "550";
svgEl.attr("viewBox", parts.join(" "));
}
this.attachDetailsToInfoIcon(svgEl);
return svgEl;
},
getInfoIcon: function () {
// Original at https://commons.wikimedia.org/wiki/File:Information_icon.svg
var $icon = $(
'<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 62 62" width="25" height="25" version="1.0"><defs><linearGradient id="fieldGradient" gradientUnits="userSpaceOnUse" x1="42.9863" y1="7.01270" x2="22.0144" y2="51.9871"><stop offset="0.0" stop-color="#BCD6FE" /><stop offset="1.0" stop-color="#6787D3" /></linearGradient><linearGradient id="edgeGradient" gradientUnits="userSpaceOnUse" x1="55.4541" y1="42.7529" x2="9.54710" y2="16.2485"><stop offset="0.0" stop-color="#3057A7" /><stop offset="1.0" stop-color="#5A7AC6" /></linearGradient><radialGradient id="shadowGradient"><stop offset="0.0" stop-color="#C0C0C0" /><stop offset="0.88" stop-color="#C0C0C0" /><stop offset="1.0" stop-color="#C0C0C0" stop-opacity="0.0" /></radialGradient></defs><circle id="shadow" r="26.5" cy="29.5" cx="32.5" fill="url(#shadowGradient)" transform="matrix(1.0648,0.0,0.0,1.064822,-2.1,1.0864)" /><circle id="field" r="25.8" cx="31" cy="31" fill="url(#fieldGradient)" stroke="url(#edgeGradient)" stroke-width="2" /><g id="info" fill="white"><polygon points="23,25 35,25 35,44 39,44 39,48 23,48 23,44 27,44 27,28 23,28 23,25" /><circle r="4" cx="31" cy="17" /></g></svg>'
);
if (window.outerWidth < 600) {
$icon.attr("width", "50px");
$icon.attr("height", "50px");
}
return $icon;
},
attachDetailsToInfoIcon: function (svgEl) {
var footer = svgEl.find("#footer");
var separator = svgEl.find("#separator-line");
var details = svgEl.find("#details");
// Remove unneeded elements
if (separator.length) {
separator.remove();
}
if (details.length) {
details.remove();
}
if (footer.length) {
footer.remove();
}
var detailsArr = [];
if (this.worldDetails) {
detailsArr = this.parseSVGDetails($(this.worldDetails));
} else {
detailsArr = this.parseSVGDetails(details);
}
var header = svgEl.find("#header");
var isMobile = window.outerWidth < 600;
if (header.length && detailsArr) {
header = header.first();
var that = this;
var infoIcon = this.getInfoIcon();
svgEl.find("#logo").empty().append(infoIcon);
infoIcon.on(isMobile ? "click" : "mouseenter", function (e) {
var popup = $("<div>")
.css("position", "absolute")
.css("background-color", "white")
.css("border", "1px solid #eee")
.css("border-radius", "2px")
.css("padding", "5px")
.css("background-color", "white")
.css("border", "1px solid #eee")
.css("border-radius", "2px")
.css("padding", "5px")
.css("max-width", "400px")
.attr("id", "details-popup");
if (isMobile) {
popup.css("top", "0px").css("right", "25px").css("max-width", "350px");
var close = $("<button>").text("X").on("click", function() {
$("#details-popup").remove();
});
var closeContainer = $("<div>").css("display", "flex").css("justify-content", "flex-end").append(close);
popup.append(closeContainer);
} else {
popup.css("top", parseInt(e.clientY) + 15 + "px").css("left", parseInt(e.clientX) - 400 + "px");
}
detailsArr.forEach(function (item) {
var itemContainer = $("<div>").css("font-size", "12px");
var title = $("<strong>").text(item.id + ". " + item.title + ": ");
var description = $("<span>").text(item.description);
itemContainer.append(title).append(description);
popup.append(itemContainer);
});
$(that.CONTAINER_SELECTOR).append(popup);
});
infoIcon.on(isMobile ? "blur" : "mouseleave", function () {
$("#details-popup").remove();
});
}
},
parseSVGDetails: function (svgDetails) {
if (svgDetails.length > 0) {
var items = svgDetails.children();
var details = [];
items.each(function () {
// Get all tspan elements in this text group
const tspans = $(this).find("tspan");
// Extract the first line which contains the number and title
const firstLine = tspans.first().text();
// Try to match pattern with colon first: "1. Title: Description"
var titleMatch = firstLine.match(/^(\d+)\.\s+([^:]+):\s*(.*)/);
var number, title, firstLineContent;
if (titleMatch) {
// Pattern with colon found
number = parseInt(titleMatch[1]);
title = titleMatch[2].trim();
firstLineContent = titleMatch[3].trim();
} else {
// Try pattern without colon: "1. Title Description"
titleMatch = firstLine.match(/^(\d+)\.\s+(.+)/);
if (titleMatch) {
number = parseInt(titleMatch[1]);
// For titles without colon, we need to extract the title from the styled spans
const titleSpan = tspans.first().find('tspan[style*="font-weight:700"]').last();
if (titleSpan.length > 0) {
title = titleSpan.text().trim();
// Get content after the title
const titleEndIndex = firstLine.indexOf(title) + title.length;
firstLineContent = firstLine.substring(titleEndIndex).trim();
} else {
// Fallback: assume first few words are the title
const words = titleMatch[2].trim().split(' ');
title = words.slice(0, 2).join(' '); // Take first 2 words as title
firstLineContent = words.slice(2).join(' '); // Rest as description
}
}
}
if (number && title) {
// Get additional content from subsequent tspans (exclude the repeated title/number)
var additionalContent = "";
tspans.slice(1).each(function () {
// Exclude content that starts with the number and title again
const text = $(this).text();
if (!text.match(/^\d+\.\s+/)) {
additionalContent += " " + text.trim();
}
});
// Combine for full description
const fullDescription = (firstLineContent + additionalContent).trim();
// Add to JSON structure
details.push({
id: number,
title: title,
description: fullDescription,
});
}
});
}
return details;
},
attachSVGHandlers: function () {
this.initSVGControls();
},
replaceTranslationData: function(svgDoc) {
if (this.worldTitle) {
var currentTitle = svgDoc.querySelector("#header a text tspan");
if (currentTitle) {
currentTitle.textContent = this.worldTitle;
}
}
if (this.worldSubtitle) {
var currentSubtitle = svgDoc.querySelector("#header #subtitle text tspan");
if (currentSubtitle) {
currentSubtitle.textContent = this.worldSubtitle;
}
}
if (this.worldDetails) {
var currentDetails = svgDoc.querySelector("#details");
if (currentDetails) {
currentDetails.replaceWith(this.worldDetails);
}
}
if (this.worldLabels) {
var currentLabels = svgDoc.querySelector("#labels");
if (currentLabels) {
currentLabels.replaceWith(this.worldLabels);
}
}
return svgDoc;
},
preload: function () {
var that = this;
var funcArray = [];
if (!this.svgYears) {
this.svgYears = Object.create( null );
}
var svgs = [];
var viewSvgs = this.svgUrls[this.currentView];
var firstSvg = viewSvgs[this.min];
fetch(firstSvg.url)
.then(function(res) {
return res.text();
})
.then(function(svgData) {
// We need to extract the years first, cause DOMPurify removes the years metadata
var parser = new DOMParser();
var svgDoc = parser.parseFromString(svgData, "image/svg+xml");
var years = svgDoc.querySelectorAll("metadata years year");
// Then let's purify
svgData = OWIDSlider.purify(svgData);
svgData = svgData.replaceAll(" ", "");
parser = new DOMParser();
svgDoc = parser.parseFromString(svgData, "image/svg+xml");
if (years.length > 0) {
var yearsObj = Object.create( null );
years.forEach(function(yearEl) {
var year = parseInt(yearEl.getAttribute("value"));
yearsObj[year] = Object.create( null );
for (var i=0; i < yearEl.children.length; i++) {
var countryEl = yearEl.children[i];
yearsObj[year][countryEl.getAttribute("name").replace(/\s/g, "-")] = countryEl.getAttribute("fill");
}
});
that.firstSVGData = svgData;
// Remove language switches
var switches = svgDoc.querySelectorAll("switch");
switches.forEach(function (sw){
var enOption = null;
sw.querySelectorAll("text").forEach(function(text) {
var sysLang = text.getAttribute("systemLanguage");
if (!sysLang || sysLang == "en") {
enOption = text;
}
if (that.language && that.language != "en") {
if (sysLang != that.language) {
sw.removeChild(text);
} else {
text.removeAttribute("systemLanguage");
}
} else {
// It's English
if (sysLang && sysLang != "en") {
sw.removeChild(text);
}
}
});
// Fallback to English if no translation to target language is found
if (sw.children.length == 0 && enOption) {
sw.appendChild(enOption);
}
});
// preserve the translations from the World map
if (that.currentView.toLowerCase() == "world" || (switches.length > 0 && !that.worldTitle)) {
that.worldTitle = svgDoc.querySelector("#header a text tspan").textContent;
that.worldSubtitle = svgDoc.querySelector("#header #subtitle text tspan").textContent;
that.worldDetails = svgDoc.querySelector("#details");
that.worldLabels = svgDoc.querySelector("#labels");
} else {
// Check if we have world translations. If so, substitute in the svgDoc
svgDoc = that.replaceTranslationData(svgDoc);
}
// Convert the modified DOM back to a string
var serializer = new XMLSerializer();
that.firstSVGData = serializer.serializeToString(svgDoc);
that.svgYears[that.currentView] = yearsObj;
that.toggleImg();
that.removeLoadingState();
} else {
// TODO: Ask user to import or fallback to prev flow
for (var i = that.min; i <= that.max; i++) {
var svgUrl = that.svgUrls[that.currentView][i];
if (svgUrl) {
svgUrl = svgUrl.url;
} else {
continue;
}
// Previousely cached
if (that.cachedSvgs[svgUrl]) {
continue;
}
svgs.push(svgUrl);
}
that.processArray(svgs, that.loadAndCacheSvgs.bind(that));
that.toggleImg();
}
});
},
loadAndCacheSvgs: function (svgUrl) {
var that = this;
return new Promise(function (resolve) {
fetch(svgUrl)
.then(function (res) {
return res.text();
})
.then(function (svgData) {
svgData = OWIDSlider.purify( svgData );
that.cachedSvgs[svgUrl] = svgData;
that.onUrlLoaded();
resolve(true);
})
.catch(function (err) {
that.onUrlLoaded();
console.log("Error loading svg data", svgUrl, gallery, i, err);
resolve(false);
});
});
},
processArray: function (arr, fn) {
var chunks = [];
var chunk_size = 2;
var accumilator = [];
for (var i = 0; i < arr.length; i++) {
if (accumilator.length >= chunk_size) {
chunks.push(accumilator);
accumilator = [];
}
accumilator.push(arr[i]);
}
if (accumilator.length > 0) {
chunks.push(accumilator);
accumilator = [];
}
return chunks.reduce(function (p, v) {
return p.then(function (a) {
return new Promise(function (resolve) {
if (!v || v.length == 0) {
return resolve(p);
}
var funcArray = [];
for (var i = 0; i < v.length; i++) {
funcArray.push(
(function (url) {
return fn(url).then(function (r) {
return a.concat([r]);
});
})(v[i])
);
}
return Promise.all(funcArray).then(function () {
resolve(a);
});
});
});
}, Promise.resolve([]));
},
getUrls: function () {
this.urls = Object.create( null );
this.infoUrls = Object.create( null );
for (var gallery in this.imgs) {
this.urls[gallery] = [];
this.infoUrls[gallery] = [];
for (var i = this.min; i <= this.max; i++) {
if (!this.imgs[gallery][i]) {
continue;
}
this.urls[gallery][i] = OWIDSlider.getSource(
this.imgs[gallery][i],
this.width,
this.height
);
if (this.imgs[gallery][i].parentElement.href) {
this.infoUrls[gallery][i] = this.imgs[gallery][i].parentElement.href;
} else {
this.infoUrls[gallery][i] = false;
}
}
}
},
onUrlLoaded: function () {
// For now, this still increments for failed loads, so
// as not to have the progress bar stuck.
this.urlsLoaded++;
var progress = Math.floor((this.urlsLoaded / this.total) * 100);
if (this.$loading.length) {
this.$loading.text(mw.msg("OWIDSliderLoading", progress));
if (this.urlsLoaded === this.total) {
this.removeLoadingState();
}
}
},
removeLoadingState: function() {
this.urlsLoaded = this.total;
this.$viewer.removeClass("OWIDSlider-loading");
this.$loading.remove();
},
handleTouchStart: function (e) {
for (var i = 0; i < e.changedTouches.length; i++) {
var t = e.changedTouches[i];
this.pendingTouches[t.identifier] = [t.clientX, t.clientY];
}
},
handleTouchCancel: function (e) {
for (var i = 0; i < e.changedTouches.length; i++) {
var t = e.changedTouches[i];
delete this.pendingTouches[t.identifier];
}
},
handleTouchMove: function (e) {
for (var i = 0; i < e.changedTouches.length; i++) {
var t = e.changedTouches[i];
if (!this.pendingTouches[t.identifier]) {
continue;
}
var startX = this.pendingTouches[t.identifier][0];
var startY = this.pendingTouches[t.identifier][1];
var angle = Math.abs(
Math.atan((startY - t.clientY) / (startX - t.clientX))
);
if (angle > 1) {
// vertical. > ~60 degrees
if (Math.abs(startY - t.clientY) < 15) {
// Not large enough
continue;
}
// reset calculation so we move image if they move 15 more pixels
this.pendingTouches[t.identifier] = [t.clientX, t.clientY];
/* Do not do anything for vertical swipes.
if ( startY - t.clientY > 0 ) {
// swipe up
this.currentImage--;
this.repaint();
} else {
// swipe down.
this.currentImage++;
this.repaint();
}
*/
}
}
},
handleTouchEnd: function (e) {
for (var i = 0; i < e.changedTouches.length; i++) {
var t = e.changedTouches[i];
if (!this.pendingTouches[t.identifier]) {
continue;
}
var startX = this.pendingTouches[t.identifier][0];
var startY = this.pendingTouches[t.identifier][1];
var angle = Math.abs(
Math.atan((startY - t.clientY) / (startX - t.clientX))
);
if (angle < 0.7) {
// horizontal swipe. < 40 degrees
if (Math.abs(startX - t.clientX) < 30) {
// Not large enough
continue;
}
if (startX - t.clientX < 0) {
// swipe left
this.currentImage--;
this.repaint();
} else {
// swipe right
this.currentImage++;
this.repaint();
}
}
/** do not do anything for vertical swipes
if ( angle > 1 ) {
// vertical swipe. > ~60 degrees
if ( Math.abs( startY - t.clientY ) < 30 ) {
// Not large enough
continue;
}
if ( startY - t.clientY > 0 ) {
// swipe up
this.currentImage--;
this.repaint();
} else {
// swipe down
this.currentImage++;
this.repaint();
}
} */
delete this.pendingTouches[t.identifier];
}
},
initSVGControls: function (countriesUrls) {
this.HIGHLIGHTED_STROKE_WIDTH = 1;
this.DEFAULT_STROKE_WIDTH = 0.3;
this.CONTAINER_SELECTOR = ".OWIDSliderSVGContainer";
this.MAP_SELECTOR = "#chart-area"
this.$svgContainer = $(this.CONTAINER_SELECTOR);
this.strokeWidth = Object.create( null );
this.originalContainerContent = this.$svgContainer.html();
// Enable pointer events on svg content
this.chartArea = document.querySelector(
this.CONTAINER_SELECTOR + " #chart-area"
);
this.chartArea.style.pointerEvents = "all";
this.chartArea.style.zIndex = 1;
this.$loader = this.getLoader();
var svgBackgroundFill = $(this.CONTAINER_SELECTOR + " .background-fill");
if (svgBackgroundFill) {
svgBackgroundFill.css("z-index", -1);
}
var $countryBack = $(".OWIDSlider-country-back-container");
if ($countryBack.length) {
$countryBack.remove();
}
this.attacHoverEventOnCountries();
this.attachFocusCountriesOnLegendHover();
this.attachClickEventOnCountries();
// attachBackButton();
},
getLoader: function () {
var $loader = $("<div></div>").attr({
class: "OWIDSlider-viewer OWIDSlider-loading",
});
// From https://commons.wikimedia.org/wiki/File:Loading_spinner.svg
$loader.append(
'<svg xmlns="http://www.w3.org/2000/svg" aria-label="Loading..." viewBox="0 0 100 100" width="25%" height="25%" style="display:block;margin:auto"><rect fill="#555" height="6" opacity=".083" rx="3" ry="3" transform="rotate(-60 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".167" rx="3" ry="3" transform="rotate(-30 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".25" rx="3" ry="3" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".333" rx="3" ry="3" transform="rotate(30 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".417" rx="3" ry="3" transform="rotate(60 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".5" rx="3" ry="3" transform="rotate(90 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".583" rx="3" ry="3" transform="rotate(120 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".667" rx="3" ry="3" transform="rotate(150 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".75" rx="3" ry="3" transform="rotate(180 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".833" rx="3" ry="3" transform="rotate(210 50 50)" width="25" x="72" y="47"/><rect fill="#555" height="6" opacity=".917" rx="3" ry="3" transform="rotate(240 50 50)" width="25" x="72" y="47"/></svg>'
);
return $loader;
},
attacHoverEventOnCountries: function () {
// attach hover event on all countries
var allCountries = document.querySelectorAll(
this.CONTAINER_SELECTOR +
" g#countries-with-data path,g#countries-without-data path"
);
for (var i = 0; i < allCountries.length; i++) {
allCountries[i].onmouseenter = this.onCountryHover.bind(this);
allCountries[i].onmouseleave = this.onCountryHoverLeave.bind(this);
}
},
getOverlayHanlderId: function (id) {
return "overlay-" + id;
},
onCountryHover: function (e) {
function createCountryPopup(config) {
var countryPopup = document.createElement("div");
countryPopup.style.position = "absolute";
countryPopup.style.left = config.left;
countryPopup.style.top = config.top;
countryPopup.style.backgroundColor = "white";
countryPopup.style.border = "1px solid #eee";
countryPopup.style.borderRadius = "2px";
countryPopup.style.boxShadow = "2px 2px 2px 1px #888888";
countryPopup.style.padding = "5px";
var span = document.createElement("span");
span.textContent = config.name;
countryPopup.appendChild(span);
countryPopup.id = config.id;
return countryPopup;
}
var id = e.target.getAttribute("id");
this.strokeWidth[id] = e.target.getAttribute("stroke-width");
e.target.setAttribute("stroke-width", this.HIGHLIGHTED_STROKE_WIDTH);
var name = id;
var formattedName = name.toLowerCase().replace(/[^a-z0-9]/g, '');
if (this.translatedCountryNames[formattedName]) {
name = this.translatedCountryNames[formattedName];
}
var countryPopup = createCountryPopup({
id: this.getOverlayHanlderId(id),
name: name,
left: parseInt(e.clientX) + 15 + "px",
top: parseInt(e.clientY) + 15 + "px",
});
document.querySelector(this.CONTAINER_SELECTOR).appendChild(countryPopup);
},
onCountryHoverLeave: function (e) {
var id = e.target.getAttribute("id");
e.target.setAttribute(
"stroke-width",
this.strokeWidth[id] || this.DEFAULT_STROKE_WIDTH
);
var el = document.querySelector(this.CONTAINER_SELECTOR);
var overlayEl = document.getElementById(this.getOverlayHanlderId(id));
if (el && overlayEl) {
el.removeChild(overlayEl);
}
},
attachFocusCountriesOnLegendHover: function () {
// Focusing coutries on legend hover
var swatchsStrokeWidth = Object.create( null );
function onSwatchMouseEnter(e) {
var fill = e.target.getAttribute("fill");
var elements = document.querySelectorAll(
this.CONTAINER_SELECTOR + " " + this.MAP_SELECTOR + " path[fill]:not([fill='" + fill + "'])"
);
for (var i = 0; i < elements.length; i++) {
elements[i].setAttribute("fill-opacity", "0.1");
}
var targetElements = document.querySelectorAll(
this.CONTAINER_SELECTOR + " " + this.MAP_SELECTOR +" path[fill='" + fill + "']"
);
for (var i = 0; i < targetElements.length; i++) {
id = targetElements[i].getAttribute("id");
strokeWidth = targetElements[i].getAttribute("stroke-width");
swatchsStrokeWidth[id] = strokeWidth;
targetElements[i].setAttribute(
"stroke-width",
this.HIGHLIGHTED_STROKE_WIDTH
);
}
e.target.setAttribute(
"stroke-width",
this.HIGHLIGHTED_STROKE_WIDTH * 1.5
);
e.target.style.cursor = "pointer";
}
function onSwatchMouseLeave(e) {
var fill = e.target.getAttribute("fill");
var elements = document.querySelectorAll(
this.CONTAINER_SELECTOR + " " + this.MAP_SELECTOR + " path[fill]:not([fill='" + fill + "'])"
);
for (var i = 0; i < elements.length; i++) {
elements[i].setAttribute("fill-opacity", "1");
id = elements[i].getAttribute("id");
strokeWidth = swatchsStrokeWidth[id] || this.DEFAULT_STROKE_WIDTH;
elements[i].setAttribute("stroke-width", strokeWidth);
}
var targetElements = document.querySelectorAll(
this.CONTAINER_SELECTOR + " " + this.MAP_SELECTOR + " path[fill='" + fill + "']"
);
for (var i = 0; i < targetElements.length; i++) {
id = targetElements[i].getAttribute("id");
strokeWidth = swatchsStrokeWidth[id] || this.DEFAULT_STROKE_WIDTH;
targetElements[i].setAttribute("stroke-width", strokeWidth);
}
e.target.setAttribute("stroke-width", this.DEFAULT_STROKE_WIDTH);
}
var swatches = document.querySelectorAll(
this.CONTAINER_SELECTOR + " #swatches > *"
);
for (var i = 0; i < swatches.length; i++) {
var fill = swatches[i].getAttribute("fill");
if (!fill || fill.indexOf("#") !== 0) {
continue;
}
swatches[i].onmouseenter = onSwatchMouseEnter.bind(this);
swatches[i].onmouseleave = onSwatchMouseLeave.bind(this);
}
},
attachClickEventOnCountries: function () {
document.querySelector(this.CONTAINER_SELECTOR + " " + this.MAP_SELECTOR).onclick =
function (e) {
var target = e.target;
if (target.tagName != "path" || !target.getAttribute("id")) {
return;
}
e.preventDefault();
e.stopPropagation();
var clickedId = target.getAttribute("id");
var clickedCountryCode = OWID_COUNTRY_CODES[clickedId];
if (clickedCountryCode) {
this.onCountryHoverLeave(e);
this.loadCountryChart(clickedCountryCode);
}
}.bind(this);
},
loadCountryChart: function (countryCode) {
var url = this.countriesSvgUrls[countryCode];
if (url) {
if (this.cachedCountriesSvgs[url]) {
this.paintCountryChart(this.cachedCountriesSvgs[url]);
this.$credit[0].href = this.countriesInfoUrls[countryCode];
} else {
var that = this;
this.originalContainerContent = this.$svgContainer.html();
this.$svgContainer.html(this.$loader.html());
fetch(url)
.then(function (data) {
return data.text();
})
.then(function (content) {
content = OWIDSlider.purify( content );
that.cachedCountriesSvgs[url] = content;
that.$svgContainer.html(that.originalContainerContent);
that.paintCountryChart(content);
that.$credit[0].href = that.countriesInfoUrls[countryCode];
})
.catch(function (err) {
console.log("Error getting country svg", err);
});
}
} else {
// Country not imported
this.paintCountryChart(this.getCountryNotFound());
}
},
getCountryNotFound: function () {
// Fixme this link doesn't work because the scaledContent event handler blocks it.
var $viewer = $(
'<div><p width="850">Country chart not found. You can import it from <a href="https://owidimporter.toolforge.org/" target="_blank" rel="noopener">here</a></p></div>.'
);
return $viewer;
},
populateTranslatedCountriesNames: function() {
var countryIds = Object.values(OWID_WIKIDATA_COUNTRY_MAP);
var that = this;
const chunkSize = 45;
const chunks = [];
// Split countryIds into chunks
for (let i = 0; i < countryIds.length; i += chunkSize) {
chunks.push(countryIds.slice(i, i + chunkSize));
}
// Process all chunks in parallel with staggered delays
const chunkPromises = chunks.map((chunk, index) => {
// Stagger the requests slightly to avoid overwhelming the server
const delay = index * 50; // 50ms between each chunk start
return new Promise(resolve => setTimeout(resolve, delay)).then(() => {
const ids = chunk.join('|');
const url = `https://www.wikidata.org/w/api.php?action=wbgetentities&ids=${ids}&format=json&props=labels&languages=${that.language}`;
var api = new mw.Api({
ajax: {
url: 'https://www.wikidata.org/w/api.php'
}
});
return api.get({
action: 'wbgetentities',
ids: ids,
format: 'json',
languages: that.language || "pt",
props: 'labels',
origin: '*' // This helps with CORS
}).then(function(res) {
const chunkResults = {};
Object.entries(res.entities).forEach(function([id, entity]) {
chunkResults[id] = entity.labels || {};
});
return chunkResults;
}).catch(function(error) {
console.error('Error fetching labels for chunk:', error);
return {}; // Return empty object if this chunk fails
});
});
});
// Wait for all chunks to complete and merge results
return Promise.all(chunkPromises).then(function(allChunkResults) {
// Merge all chunk results into a single object
const accumResults = allChunkResults.reduce(function(acc, chunkResult) {
return Object.assign(acc, chunkResult);
}, {});
// Process the accumulated results
Object.entries(accumResults).forEach(function(entry) {
if (entry[1][that.language]) {
var name = OWID_WIKIDATA_COUNTRY_MAP_REVERSE[entry[0]];
name = name.toLowerCase().replace(/[^a-z0-9]/g, '');
that.translatedCountryNames[name] = entry[1][that.language].value;
}
});
that.toggleImg();
return accumResults;
}).catch(error => {
console.error('Error processing translation chunks:', error);
return null;
});
},
getTranslatedCountryName: function(language, name) {
var that = this;
return new Promise(function(resolve, reject) {
if (!language || !name) {
return reject("Missing language or name");
}
name = name.toLowerCase().replace(/[^a-z0-9]/g, '');
if (!OWID_WIKIDATA_COUNTRY_MAP[name]) {
return reject("Cannot find country name in WIKIDATA ID Map: " + name);
}
if (that.translatedCountryNames[name]) {
return resolve(that.translatedCountryNames[name]);
}
var countryCode = OWID_WIKIDATA_COUNTRY_MAP[name];
var url = "https://www.wikidata.org/w/rest.php/wikibase/v1/entities/items/" + countryCode + "/labels";
fetch(url, {
headers: {
"accept": "application/json",
}
})
.then(function (response) {
return response.json();
})
.then(function (map) {
if (map && map[language]) {
that.translatedCountryNames[name] = map[language];
return resolve(map[language]);
}
return resolve("");
})
.catch(function(err) {
console.log("Error getting translated country", err);
reject(err);
});
});
},
paintCountryChart: function (content) {
this.originalContainerContent = this.$svgContainer.html();
this.$countrySelect.css("display", "none");
var scaledContent = this.getScaledSvg(content);
if (scaledContent.length > 0) {
var headerSpan = scaledContent.find("#header a text tspan");
if (headerSpan.length > 0) {
// Remove the trailing ", $YEAR" from the title if found
if (this.worldTitle) {
var titleParts = this.worldTitle.split(",");
if (titleParts.length > 1) {
titleParts.pop();
}
headerSpan.text(titleParts.join(","));
}
}
if (this.worldSubtitle) {
var subtitleSpan = scaledContent.find("#subtitle text tspan");
if (subtitleSpan.length > 0) {
subtitleSpan.text(this.worldSubtitle);
}
}
if (this.worldDetails) {
var currentDetails = scaledContent.find("#details");
if (currentDetails.length > 0) {
currentDetails[0].replaceWith(this.worldDetails);
}
}
// Handle translation
if (this.language && this.language != "en") {
var countryLabel = scaledContent.find("#text-labels text tspan");
var that = this;
if (countryLabel.length > 0) {
var countryName = countryLabel[0].textContent;
this.getTranslatedCountryName(this.language, countryName)
.then(function(translatedName) {
if (translatedName) {
countryLabel[0].textContent = translatedName;
}
that.applyCountryChartPaint(content, scaledContent);
})
.catch(function(err) {
console.log("Error getting translated country name: ", err);
that.applyCountryChartPaint(content, scaledContent);
});
return;
}
}
}
this.applyCountryChartPaint(content, scaledContent);
},
applyCountryChartPaint: function(content, scaledContent) {
scaledContent.on("click", function (e) {
e.preventDefault();
e.stopPropagation();
});
this.$svgContainer.html("").append(scaledContent);
// Back content
var $back = $("<button></button>")
.attr({
type: "button",
class: "OWIDSlider-country-back",
title: mw.msg("OWIDSliderFrameBack"),
"aria-label": mw.msg("OWIDSliderFrameBack"),
})
.text(mw.msg("OWIDSliderFrameBack"));
var $backContainer = $("<div></div>")
.attr({ class: "OWIDSlider-country-back-container" })
.append($back);
$backContainer.css("margin-top", "10px");
$back.on(
"click",
function () {
this.$svgContainer.html("").append(this.originalContainerContent);
this.$credit[0].href = this.infoUrls[this.currentView][this.currentImage];
$backContainer.remove();
setTimeout(
function () {
this.$countrySelect.css("display", "inline-block");
this.initSVGControls();
}.bind(this),
100
);
}.bind(this)
);
$(".OWIDSliderSVGContainer").before($backContainer);
},
};
// Include jquery.mousewheel dependency.
// --------
/*! Copyright (c) 2013 Brandon Aaron (http://brandon.aaron.sh)
* Licensed under the MIT License (LICENSE.txt).
*
* Version: 3.1.11
*
* Requires: jQuery 1.2.2+
*/
(function (factory) {
if (typeof define === "function" && define.amd) {
// AMD. Register as an anonymous module.
define(["jquery"], factory);
} else if (typeof exports === "object") {
// Node/CommonJS style for Browserify
module.exports = factory;
} else {
// Browser globals
factory(jQuery);
}
})(function ($) {
var toFix = ["wheel", "mousewheel", "DOMMouseScroll", "MozMousePixelScroll"],
toBind =
"onwheel" in document || document.documentMode >= 9
? ["wheel"]
: ["mousewheel", "DomMouseScroll", "MozMousePixelScroll"],
slice = Array.prototype.slice,
nullLowestDeltaTimeout,
lowestDelta;
if ($.event.fixHooks) {
for (var i = toFix.length; i; ) {
$.event.fixHooks[toFix[--i]] = $.event.mouseHooks;
}
}
var special = ($.event.special.mousewheel = {
version: "3.1.11",
setup: function () {
if (this.addEventListener) {
for (var i = toBind.length; i; ) {
this.addEventListener(toBind[--i], handler, false);
}
} else {
this.onmousewheel = handler;
}
// Store the line height and page height for this particular element
$.data(this, "mousewheel-line-height", special.getLineHeight(this));
$.data(this, "mousewheel-page-height", special.getPageHeight(this));
},
teardown: function () {
if (this.removeEventListener) {
for (var i = toBind.length; i; ) {
this.removeEventListener(toBind[--i], handler, false);
}
} else {
this.onmousewheel = null;
}
// Clean up the data we added to the element
$.removeData(this, "mousewheel-line-height");
$.removeData(this, "mousewheel-page-height");
},
getLineHeight: function (elem) {
var $parent =
$(elem)["offsetParent" in $.fn ? "offsetParent" : "parent"]();
if (!$parent.length) {
$parent = $("body");
}
return parseInt($parent.css("fontSize"), 10);
},
getPageHeight: function (elem) {
return $(elem).height();
},
settings: {
adjustOldDeltas: true, // see shouldAdjustOldDeltas() below
normalizeOffset: true, // calls getBoundingClientRect for each event
},
});
$.fn.extend({
mousewheel: function (fn) {
return fn ? this.on("mousewheel", fn) : this.trigger("mousewheel");
},
unmousewheel: function (fn) {
return this.off("mousewheel", fn);
},
});
function handler(event) {
var orgEvent = event || window.event,
args = slice.call(arguments, 1),
delta = 0,
deltaX = 0,
deltaY = 0,
absDelta = 0,
offsetX = 0,
offsetY = 0;
event = $.event.fix(orgEvent);
event.type = "mousewheel";
// Old school scrollwheel delta
if ("detail" in orgEvent) {
deltaY = orgEvent.detail * -1;
}
if ("wheelDelta" in orgEvent) {
deltaY = orgEvent.wheelDelta;
}
if ("wheelDeltaY" in orgEvent) {
deltaY = orgEvent.wheelDeltaY;
}
if ("wheelDeltaX" in orgEvent) {
deltaX = orgEvent.wheelDeltaX * -1;
}
// Firefox < 17 horizontal scrolling related to DOMMouseScroll event
if ("axis" in orgEvent && orgEvent.axis === orgEvent.HORIZONTAL_AXIS) {
deltaX = deltaY * -1;
deltaY = 0;
}
// Set delta to be deltaY or deltaX if deltaY is 0 for backwards compatabilitiy
delta = deltaY === 0 ? deltaX : deltaY;
// New school wheel delta (wheel event)
if ("deltaY" in orgEvent) {
deltaY = orgEvent.deltaY * -1;
delta = deltaY;
}
if ("deltaX" in orgEvent) {
deltaX = orgEvent.deltaX;
if (deltaY === 0) {
delta = deltaX * -1;
}
}
// No change actually happened, no reason to go any further
if (deltaY === 0 && deltaX === 0) {
return;
}
// Need to convert lines and pages to pixels if we aren't already in pixels
// There are three delta modes:
// * deltaMode 0 is by pixels, nothing to do
// * deltaMode 1 is by lines
// * deltaMode 2 is by pages
if (orgEvent.deltaMode === 1) {
var lineHeight = $.data(this, "mousewheel-line-height");
delta *= lineHeight;
deltaY *= lineHeight;
deltaX *= lineHeight;
} else if (orgEvent.deltaMode === 2) {
var pageHeight = $.data(this, "mousewheel-page-height");
delta *= pageHeight;
deltaY *= pageHeight;
deltaX *= pageHeight;
}
// Store lowest absolute delta to normalize the delta values
absDelta = Math.max(Math.abs(deltaY), Math.abs(deltaX));
if (!lowestDelta || absDelta < lowestDelta) {
lowestDelta = absDelta;
// Adjust older deltas if necessary
if (shouldAdjustOldDeltas(orgEvent, absDelta)) {
lowestDelta /= 40;
}
}
// Adjust older deltas if necessary
if (shouldAdjustOldDeltas(orgEvent, absDelta)) {
// Divide all the things by 40!
delta /= 40;
deltaX /= 40;
deltaY /= 40;
}
// Get a whole, normalized value for the deltas
delta = Math[delta >= 1 ? "floor" : "ceil"](delta / lowestDelta);
deltaX = Math[deltaX >= 1 ? "floor" : "ceil"](deltaX / lowestDelta);
deltaY = Math[deltaY >= 1 ? "floor" : "ceil"](deltaY / lowestDelta);
// Normalise offsetX and offsetY properties
if (special.settings.normalizeOffset && this.getBoundingClientRect) {
var boundingRect = this.getBoundingClientRect();
offsetX = event.clientX - boundingRect.left;
offsetY = event.clientY - boundingRect.top;
}
// Add information to the event object
event.deltaX = deltaX;
event.deltaY = deltaY;
event.deltaFactor = lowestDelta;
event.offsetX = offsetX;
event.offsetY = offsetY;
// Go ahead and set deltaMode to 0 since we converted to pixels
// Although this is a little odd since we overwrite the deltaX/Y
// properties with normalized deltas.
event.deltaMode = 0;
// Add event and delta to the front of the arguments
args.unshift(event, delta, deltaX, deltaY);
// Clearout lowestDelta after sometime to better
// handle multiple device types that give different
// a different lowestDelta
// Ex: trackpad = 3 and mouse wheel = 120
if (nullLowestDeltaTimeout) {
clearTimeout(nullLowestDeltaTimeout);
}
nullLowestDeltaTimeout = setTimeout(nullLowestDelta, 200);
return ($.event.dispatch || $.event.handle).apply(this, args);
}
function nullLowestDelta() {
lowestDelta = null;
}
function shouldAdjustOldDeltas(orgEvent, absDelta) {
// If this is an older event and the delta is divisable by 120,
// then we are assuming that the browser is treating this as an
// older mouse wheel event and that we should divide the deltas
// by 40 to try and get a more usable deltaFactor.
// Side note, this actually impacts the reported scroll distance
// in older browsers and can cause scrolling to be slower than native.
// Turn this off by setting $.event.special.mousewheel.settings.adjustOldDeltas to false.
return (
special.settings.adjustOldDeltas &&
orgEvent.type === "mousewheel" &&
absDelta % 120 === 0
);
}
});
// --- Start image stack popup
$(OWIDSlider.init); // Script written by Bawolff for WikiProject Med Foundation based on earlier OWIDSlider script by Hellerhoff.