@senx/discovery-plugin-marauder
Version:
Discovery plugin - Marauder's map
1,482 lines (1,254 loc) • 477 kB
JavaScript
'use strict';
const utils = require('./utils-c9264fdc.js');
var domToImage = {exports: {}};
(function (module) {
(function (global) {
var util = newUtil();
var inliner = newInliner();
var fontFaces = newFontFaces();
var images = newImages();
// Default impl options
var defaultOptions = {
// Default is to fail on error, no placeholder
imagePlaceholder: undefined,
// Default cache bust is false, it will use the cache
cacheBust: false
};
var domtoimage = {
toSvg: toSvg,
toPng: toPng,
toJpeg: toJpeg,
toBlob: toBlob,
toPixelData: toPixelData,
impl: {
fontFaces: fontFaces,
images: images,
util: util,
inliner: inliner,
options: {}
}
};
module.exports = domtoimage;
/**
* @param {Node} node - The DOM Node object to render
* @param {Object} options - Rendering options
* @param {Function} options.filter - Should return true if passed node should be included in the output
* (excluding node means excluding it's children as well). Not called on the root node.
* @param {String} options.bgcolor - color for the background, any valid CSS color value.
* @param {Number} options.width - width to be applied to node before rendering.
* @param {Number} options.height - height to be applied to node before rendering.
* @param {Object} options.style - an object whose properties to be copied to node's style before rendering.
* @param {Number} options.quality - a Number between 0 and 1 indicating image quality (applicable to JPEG only),
defaults to 1.0.
* @param {String} options.imagePlaceholder - dataURL to use as a placeholder for failed images, default behaviour is to fail fast on images we can't fetch
* @param {Boolean} options.cacheBust - set to true to cache bust by appending the time to the request url
* @return {Promise} - A promise that is fulfilled with a SVG image data URL
* */
function toSvg(node, options) {
options = options || {};
copyOptions(options);
return Promise.resolve(node)
.then(function (node) {
return cloneNode(node, options.filter, true);
})
.then(embedFonts)
.then(inlineImages)
.then(applyOptions)
.then(function (clone) {
return makeSvgDataUri(clone,
options.width || util.width(node),
options.height || util.height(node)
);
});
function applyOptions(clone) {
if (options.bgcolor) clone.style.backgroundColor = options.bgcolor;
if (options.width) clone.style.width = options.width + 'px';
if (options.height) clone.style.height = options.height + 'px';
if (options.style)
Object.keys(options.style).forEach(function (property) {
clone.style[property] = options.style[property];
});
return clone;
}
}
/**
* @param {Node} node - The DOM Node object to render
* @param {Object} options - Rendering options, @see {@link toSvg}
* @return {Promise} - A promise that is fulfilled with a Uint8Array containing RGBA pixel data.
* */
function toPixelData(node, options) {
return draw(node, options || {})
.then(function (canvas) {
return canvas.getContext('2d').getImageData(
0,
0,
util.width(node),
util.height(node)
).data;
});
}
/**
* @param {Node} node - The DOM Node object to render
* @param {Object} options - Rendering options, @see {@link toSvg}
* @return {Promise} - A promise that is fulfilled with a PNG image data URL
* */
function toPng(node, options) {
return draw(node, options || {})
.then(function (canvas) {
return canvas.toDataURL();
});
}
/**
* @param {Node} node - The DOM Node object to render
* @param {Object} options - Rendering options, @see {@link toSvg}
* @return {Promise} - A promise that is fulfilled with a JPEG image data URL
* */
function toJpeg(node, options) {
options = options || {};
return draw(node, options)
.then(function (canvas) {
return canvas.toDataURL('image/jpeg', options.quality || 1.0);
});
}
/**
* @param {Node} node - The DOM Node object to render
* @param {Object} options - Rendering options, @see {@link toSvg}
* @return {Promise} - A promise that is fulfilled with a PNG image blob
* */
function toBlob(node, options) {
return draw(node, options || {})
.then(util.canvasToBlob);
}
function copyOptions(options) {
// Copy options to impl options for use in impl
if(typeof(options.imagePlaceholder) === 'undefined') {
domtoimage.impl.options.imagePlaceholder = defaultOptions.imagePlaceholder;
} else {
domtoimage.impl.options.imagePlaceholder = options.imagePlaceholder;
}
if(typeof(options.cacheBust) === 'undefined') {
domtoimage.impl.options.cacheBust = defaultOptions.cacheBust;
} else {
domtoimage.impl.options.cacheBust = options.cacheBust;
}
}
function draw(domNode, options) {
return toSvg(domNode, options)
.then(util.makeImage)
.then(util.delay(100))
.then(function (image) {
var canvas = newCanvas(domNode);
canvas.getContext('2d').drawImage(image, 0, 0);
return canvas;
});
function newCanvas(domNode) {
var canvas = document.createElement('canvas');
canvas.width = options.width || util.width(domNode);
canvas.height = options.height || util.height(domNode);
if (options.bgcolor) {
var ctx = canvas.getContext('2d');
ctx.fillStyle = options.bgcolor;
ctx.fillRect(0, 0, canvas.width, canvas.height);
}
return canvas;
}
}
function cloneNode(node, filter, root) {
if (!root && filter && !filter(node)) return Promise.resolve();
return Promise.resolve(node)
.then(makeNodeCopy)
.then(function (clone) {
return cloneChildren(node, clone, filter);
})
.then(function (clone) {
return processClone(node, clone);
});
function makeNodeCopy(node) {
if (node instanceof HTMLCanvasElement) return util.makeImage(node.toDataURL());
return node.cloneNode(false);
}
function cloneChildren(original, clone, filter) {
var children = original.childNodes;
if (children.length === 0) return Promise.resolve(clone);
return cloneChildrenInOrder(clone, util.asArray(children), filter)
.then(function () {
return clone;
});
function cloneChildrenInOrder(parent, children, filter) {
var done = Promise.resolve();
children.forEach(function (child) {
done = done
.then(function () {
return cloneNode(child, filter);
})
.then(function (childClone) {
if (childClone) parent.appendChild(childClone);
});
});
return done;
}
}
function processClone(original, clone) {
if (!(clone instanceof Element)) return clone;
return Promise.resolve()
.then(cloneStyle)
.then(clonePseudoElements)
.then(copyUserInput)
.then(fixSvg)
.then(function () {
return clone;
});
function cloneStyle() {
copyStyle(window.getComputedStyle(original), clone.style);
function copyStyle(source, target) {
if (source.cssText) target.cssText = source.cssText;
else copyProperties(source, target);
function copyProperties(source, target) {
util.asArray(source).forEach(function (name) {
target.setProperty(
name,
source.getPropertyValue(name),
source.getPropertyPriority(name)
);
});
}
}
}
function clonePseudoElements() {
[':before', ':after'].forEach(function (element) {
clonePseudoElement(element);
});
function clonePseudoElement(element) {
var style = window.getComputedStyle(original, element);
var content = style.getPropertyValue('content');
if (content === '' || content === 'none') return;
var className = util.uid();
clone.className = clone.className + ' ' + className;
var styleElement = document.createElement('style');
styleElement.appendChild(formatPseudoElementStyle(className, element, style));
clone.appendChild(styleElement);
function formatPseudoElementStyle(className, element, style) {
var selector = '.' + className + ':' + element;
var cssText = style.cssText ? formatCssText(style) : formatCssProperties(style);
return document.createTextNode(selector + '{' + cssText + '}');
function formatCssText(style) {
var content = style.getPropertyValue('content');
return style.cssText + ' content: ' + content + ';';
}
function formatCssProperties(style) {
return util.asArray(style)
.map(formatProperty)
.join('; ') + ';';
function formatProperty(name) {
return name + ': ' +
style.getPropertyValue(name) +
(style.getPropertyPriority(name) ? ' !important' : '');
}
}
}
}
}
function copyUserInput() {
if (original instanceof HTMLTextAreaElement) clone.innerHTML = original.value;
if (original instanceof HTMLInputElement) clone.setAttribute("value", original.value);
}
function fixSvg() {
if (!(clone instanceof SVGElement)) return;
clone.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
if (!(clone instanceof SVGRectElement)) return;
['width', 'height'].forEach(function (attribute) {
var value = clone.getAttribute(attribute);
if (!value) return;
clone.style.setProperty(attribute, value);
});
}
}
}
function embedFonts(node) {
return fontFaces.resolveAll()
.then(function (cssText) {
var styleNode = document.createElement('style');
node.appendChild(styleNode);
styleNode.appendChild(document.createTextNode(cssText));
return node;
});
}
function inlineImages(node) {
return images.inlineAll(node)
.then(function () {
return node;
});
}
function makeSvgDataUri(node, width, height) {
return Promise.resolve(node)
.then(function (node) {
node.setAttribute('xmlns', 'http://www.w3.org/1999/xhtml');
return new XMLSerializer().serializeToString(node);
})
.then(util.escapeXhtml)
.then(function (xhtml) {
return '<foreignObject x="0" y="0" width="100%" height="100%">' + xhtml + '</foreignObject>';
})
.then(function (foreignObject) {
return '<svg xmlns="http://www.w3.org/2000/svg" width="' + width + '" height="' + height + '">' +
foreignObject + '</svg>';
})
.then(function (svg) {
return 'data:image/svg+xml;charset=utf-8,' + svg;
});
}
function newUtil() {
return {
escape: escape,
parseExtension: parseExtension,
mimeType: mimeType,
dataAsUrl: dataAsUrl,
isDataUrl: isDataUrl,
canvasToBlob: canvasToBlob,
resolveUrl: resolveUrl,
getAndEncode: getAndEncode,
uid: uid(),
delay: delay,
asArray: asArray,
escapeXhtml: escapeXhtml,
makeImage: makeImage,
width: width,
height: height
};
function mimes() {
/*
* Only WOFF and EOT mime types for fonts are 'real'
* see http://www.iana.org/assignments/media-types/media-types.xhtml
*/
var WOFF = 'application/font-woff';
var JPEG = 'image/jpeg';
return {
'woff': WOFF,
'woff2': WOFF,
'ttf': 'application/font-truetype',
'eot': 'application/vnd.ms-fontobject',
'png': 'image/png',
'jpg': JPEG,
'jpeg': JPEG,
'gif': 'image/gif',
'tiff': 'image/tiff',
'svg': 'image/svg+xml'
};
}
function parseExtension(url) {
var match = /\.([^\.\/]*?)$/g.exec(url);
if (match) return match[1];
else return '';
}
function mimeType(url) {
var extension = parseExtension(url).toLowerCase();
return mimes()[extension] || '';
}
function isDataUrl(url) {
return url.search(/^(data:)/) !== -1;
}
function toBlob(canvas) {
return new Promise(function (resolve) {
var binaryString = window.atob(canvas.toDataURL().split(',')[1]);
var length = binaryString.length;
var binaryArray = new Uint8Array(length);
for (var i = 0; i < length; i++)
binaryArray[i] = binaryString.charCodeAt(i);
resolve(new Blob([binaryArray], {
type: 'image/png'
}));
});
}
function canvasToBlob(canvas) {
if (canvas.toBlob)
return new Promise(function (resolve) {
canvas.toBlob(resolve);
});
return toBlob(canvas);
}
function resolveUrl(url, baseUrl) {
var doc = document.implementation.createHTMLDocument();
var base = doc.createElement('base');
doc.head.appendChild(base);
var a = doc.createElement('a');
doc.body.appendChild(a);
base.href = baseUrl;
a.href = url;
return a.href;
}
function uid() {
var index = 0;
return function () {
return 'u' + fourRandomChars() + index++;
function fourRandomChars() {
/* see http://stackoverflow.com/a/6248722/2519373 */
return ('0000' + (Math.random() * Math.pow(36, 4) << 0).toString(36)).slice(-4);
}
};
}
function makeImage(uri) {
return new Promise(function (resolve, reject) {
var image = new Image();
image.onload = function () {
resolve(image);
};
image.onerror = reject;
image.src = uri;
});
}
function getAndEncode(url) {
var TIMEOUT = 30000;
if(domtoimage.impl.options.cacheBust) {
// Cache bypass so we dont have CORS issues with cached images
// Source: https://developer.mozilla.org/en/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest#Bypassing_the_cache
url += ((/\?/).test(url) ? "&" : "?") + (new Date()).getTime();
}
return new Promise(function (resolve) {
var request = new XMLHttpRequest();
request.onreadystatechange = done;
request.ontimeout = timeout;
request.responseType = 'blob';
request.timeout = TIMEOUT;
request.open('GET', url, true);
request.send();
var placeholder;
if(domtoimage.impl.options.imagePlaceholder) {
var split = domtoimage.impl.options.imagePlaceholder.split(/,/);
if(split && split[1]) {
placeholder = split[1];
}
}
function done() {
if (request.readyState !== 4) return;
if (request.status !== 200) {
if(placeholder) {
resolve(placeholder);
} else {
fail('cannot fetch resource: ' + url + ', status: ' + request.status);
}
return;
}
var encoder = new FileReader();
encoder.onloadend = function () {
var content = encoder.result.split(/,/)[1];
resolve(content);
};
encoder.readAsDataURL(request.response);
}
function timeout() {
if(placeholder) {
resolve(placeholder);
} else {
fail('timeout of ' + TIMEOUT + 'ms occured while fetching resource: ' + url);
}
}
function fail(message) {
console.error(message);
resolve('');
}
});
}
function dataAsUrl(content, type) {
return 'data:' + type + ';base64,' + content;
}
function escape(string) {
return string.replace(/([.*+?^${}()|\[\]\/\\])/g, '\\$1');
}
function delay(ms) {
return function (arg) {
return new Promise(function (resolve) {
setTimeout(function () {
resolve(arg);
}, ms);
});
};
}
function asArray(arrayLike) {
var array = [];
var length = arrayLike.length;
for (var i = 0; i < length; i++) array.push(arrayLike[i]);
return array;
}
function escapeXhtml(string) {
return string.replace(/#/g, '%23').replace(/\n/g, '%0A');
}
function width(node) {
var leftBorder = px(node, 'border-left-width');
var rightBorder = px(node, 'border-right-width');
return node.scrollWidth + leftBorder + rightBorder;
}
function height(node) {
var topBorder = px(node, 'border-top-width');
var bottomBorder = px(node, 'border-bottom-width');
return node.scrollHeight + topBorder + bottomBorder;
}
function px(node, styleProperty) {
var value = window.getComputedStyle(node).getPropertyValue(styleProperty);
return parseFloat(value.replace('px', ''));
}
}
function newInliner() {
var URL_REGEX = /url\(['"]?([^'"]+?)['"]?\)/g;
return {
inlineAll: inlineAll,
shouldProcess: shouldProcess,
impl: {
readUrls: readUrls,
inline: inline
}
};
function shouldProcess(string) {
return string.search(URL_REGEX) !== -1;
}
function readUrls(string) {
var result = [];
var match;
while ((match = URL_REGEX.exec(string)) !== null) {
result.push(match[1]);
}
return result.filter(function (url) {
return !util.isDataUrl(url);
});
}
function inline(string, url, baseUrl, get) {
return Promise.resolve(url)
.then(function (url) {
return baseUrl ? util.resolveUrl(url, baseUrl) : url;
})
.then(get || util.getAndEncode)
.then(function (data) {
return util.dataAsUrl(data, util.mimeType(url));
})
.then(function (dataUrl) {
return string.replace(urlAsRegex(url), '$1' + dataUrl + '$3');
});
function urlAsRegex(url) {
return new RegExp('(url\\([\'"]?)(' + util.escape(url) + ')([\'"]?\\))', 'g');
}
}
function inlineAll(string, baseUrl, get) {
if (nothingToInline()) return Promise.resolve(string);
return Promise.resolve(string)
.then(readUrls)
.then(function (urls) {
var done = Promise.resolve(string);
urls.forEach(function (url) {
done = done.then(function (string) {
return inline(string, url, baseUrl, get);
});
});
return done;
});
function nothingToInline() {
return !shouldProcess(string);
}
}
}
function newFontFaces() {
return {
resolveAll: resolveAll,
impl: {
readAll: readAll
}
};
function resolveAll() {
return readAll()
.then(function (webFonts) {
return Promise.all(
webFonts.map(function (webFont) {
return webFont.resolve();
})
);
})
.then(function (cssStrings) {
return cssStrings.join('\n');
});
}
function readAll() {
return Promise.resolve(util.asArray(document.styleSheets))
.then(getCssRules)
.then(selectWebFontRules)
.then(function (rules) {
return rules.map(newWebFont);
});
function selectWebFontRules(cssRules) {
return cssRules
.filter(function (rule) {
return rule.type === CSSRule.FONT_FACE_RULE;
})
.filter(function (rule) {
return inliner.shouldProcess(rule.style.getPropertyValue('src'));
});
}
function getCssRules(styleSheets) {
var cssRules = [];
styleSheets.forEach(function (sheet) {
try {
util.asArray(sheet.cssRules || []).forEach(cssRules.push.bind(cssRules));
} catch (e) {
console.log('Error while reading CSS rules from ' + sheet.href, e.toString());
}
});
return cssRules;
}
function newWebFont(webFontRule) {
return {
resolve: function resolve() {
var baseUrl = (webFontRule.parentStyleSheet || {}).href;
return inliner.inlineAll(webFontRule.cssText, baseUrl);
},
src: function () {
return webFontRule.style.getPropertyValue('src');
}
};
}
}
}
function newImages() {
return {
inlineAll: inlineAll,
impl: {
newImage: newImage
}
};
function newImage(element) {
return {
inline: inline
};
function inline(get) {
if (util.isDataUrl(element.src)) return Promise.resolve();
return Promise.resolve(element.src)
.then(get || util.getAndEncode)
.then(function (data) {
return util.dataAsUrl(data, util.mimeType(element.src));
})
.then(function (dataUrl) {
return new Promise(function (resolve, reject) {
element.onload = resolve;
element.onerror = reject;
element.src = dataUrl;
});
});
}
}
function inlineAll(node) {
if (!(node instanceof Element)) return Promise.resolve(node);
return inlineBackground(node)
.then(function () {
if (node instanceof HTMLImageElement)
return newImage(node).inline();
else
return Promise.all(
util.asArray(node.childNodes).map(function (child) {
return inlineAll(child);
})
);
});
function inlineBackground(node) {
var background = node.style.getPropertyValue('background');
if (!background) return Promise.resolve(node);
return inliner.inlineAll(background)
.then(function (inlined) {
node.style.setProperty(
'background',
inlined,
node.style.getPropertyPriority('background')
);
})
.then(function () {
return node;
});
}
}
}
})();
}(domToImage));
const domtoimage = domToImage.exports;
var leafletSrc = {exports: {}};
/* @preserve
* Leaflet 1.9.4, a JS library for interactive maps. https://leafletjs.com
* (c) 2010-2023 Vladimir Agafonkin, (c) 2010-2011 CloudMade
*/
(function (module, exports) {
(function (global, factory) {
factory(exports) ;
})(utils.commonjsGlobal, (function (exports) {
var version = "1.9.4";
/*
* @namespace Util
*
* Various utility functions, used by Leaflet internally.
*/
// @function extend(dest: Object, src?: Object): Object
// Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut.
function extend(dest) {
var i, j, len, src;
for (j = 1, len = arguments.length; j < len; j++) {
src = arguments[j];
for (i in src) {
dest[i] = src[i];
}
}
return dest;
}
// @function create(proto: Object, properties?: Object): Object
// Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create)
var create$2 = Object.create || (function () {
function F() {}
return function (proto) {
F.prototype = proto;
return new F();
};
})();
// @function bind(fn: Function, …): Function
// Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind).
// Has a `L.bind()` shortcut.
function bind(fn, obj) {
var slice = Array.prototype.slice;
if (fn.bind) {
return fn.bind.apply(fn, slice.call(arguments, 1));
}
var args = slice.call(arguments, 2);
return function () {
return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments);
};
}
// @property lastId: Number
// Last unique ID used by [`stamp()`](#util-stamp)
var lastId = 0;
// @function stamp(obj: Object): Number
// Returns the unique ID of an object, assigning it one if it doesn't have it.
function stamp(obj) {
if (!('_leaflet_id' in obj)) {
obj['_leaflet_id'] = ++lastId;
}
return obj._leaflet_id;
}
// @function throttle(fn: Function, time: Number, context: Object): Function
// Returns a function which executes function `fn` with the given scope `context`
// (so that the `this` keyword refers to `context` inside `fn`'s code). The function
// `fn` will be called no more than one time per given amount of `time`. The arguments
// received by the bound function will be any arguments passed when binding the
// function, followed by any arguments passed when invoking the bound function.
// Has an `L.throttle` shortcut.
function throttle(fn, time, context) {
var lock, args, wrapperFn, later;
later = function () {
// reset lock and call if queued
lock = false;
if (args) {
wrapperFn.apply(context, args);
args = false;
}
};
wrapperFn = function () {
if (lock) {
// called too soon, queue to call later
args = arguments;
} else {
// call and lock until later
fn.apply(context, arguments);
setTimeout(later, time);
lock = true;
}
};
return wrapperFn;
}
// @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number
// Returns the number `num` modulo `range` in such a way so it lies within
// `range[0]` and `range[1]`. The returned value will be always smaller than
// `range[1]` unless `includeMax` is set to `true`.
function wrapNum(x, range, includeMax) {
var max = range[1],
min = range[0],
d = max - min;
return x === max && includeMax ? x : ((x - min) % d + d) % d + min;
}
// @function falseFn(): Function
// Returns a function which always returns `false`.
function falseFn() { return false; }
// @function formatNum(num: Number, precision?: Number|false): Number
// Returns the number `num` rounded with specified `precision`.
// The default `precision` value is 6 decimal places.
// `false` can be passed to skip any processing (can be useful to avoid round-off errors).
function formatNum(num, precision) {
if (precision === false) { return num; }
var pow = Math.pow(10, precision === undefined ? 6 : precision);
return Math.round(num * pow) / pow;
}
// @function trim(str: String): String
// Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)
function trim(str) {
return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
}
// @function splitWords(str: String): String[]
// Trims and splits the string on whitespace and returns the array of parts.
function splitWords(str) {
return trim(str).split(/\s+/);
}
// @function setOptions(obj: Object, options: Object): Object
// Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut.
function setOptions(obj, options) {
if (!Object.prototype.hasOwnProperty.call(obj, 'options')) {
obj.options = obj.options ? create$2(obj.options) : {};
}
for (var i in options) {
obj.options[i] = options[i];
}
return obj.options;
}
// @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String
// Converts an object into a parameter URL string, e.g. `{a: "foo", b: "bar"}`
// translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will
// be appended at the end. If `uppercase` is `true`, the parameter names will
// be uppercased (e.g. `'?A=foo&B=bar'`)
function getParamString(obj, existingUrl, uppercase) {
var params = [];
for (var i in obj) {
params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
}
return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
}
var templateRe = /\{ *([\w_ -]+) *\}/g;
// @function template(str: String, data: Object): String
// Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'`
// and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string
// `('Hello foo, bar')`. You can also specify functions instead of strings for
// data values — they will be evaluated passing `data` as an argument.
function template(str, data) {
return str.replace(templateRe, function (str, key) {
var value = data[key];
if (value === undefined) {
throw new Error('No value provided for variable ' + str);
} else if (typeof value === 'function') {
value = value(data);
}
return value;
});
}
// @function isArray(obj): Boolean
// Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)
var isArray = Array.isArray || function (obj) {
return (Object.prototype.toString.call(obj) === '[object Array]');
};
// @function indexOf(array: Array, el: Object): Number
// Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf)
function indexOf(array, el) {
for (var i = 0; i < array.length; i++) {
if (array[i] === el) { return i; }
}
return -1;
}
// @property emptyImageUrl: String
// Data URI string containing a base64-encoded empty GIF image.
// Used as a hack to free memory from unused images on WebKit-powered
// mobile devices (by setting image `src` to this string).
var emptyImageUrl = 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=';
// inspired by https://paulirish.com/2011/requestanimationframe-for-smart-animating/
function getPrefixed(name) {
return window['webkit' + name] || window['moz' + name] || window['ms' + name];
}
var lastTime = 0;
// fallback for IE 7-8
function timeoutDefer(fn) {
var time = +new Date(),
timeToCall = Math.max(0, 16 - (time - lastTime));
lastTime = time + timeToCall;
return window.setTimeout(fn, timeToCall);
}
var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer;
var cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||
getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };
// @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number
// Schedules `fn` to be executed when the browser repaints. `fn` is bound to
// `context` if given. When `immediate` is set, `fn` is called immediately if
// the browser doesn't have native support for
// [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame),
// otherwise it's delayed. Returns a request ID that can be used to cancel the request.
function requestAnimFrame(fn, context, immediate) {
if (immediate && requestFn === timeoutDefer) {
fn.call(context);
} else {
return requestFn.call(window, bind(fn, context));
}
}
// @function cancelAnimFrame(id: Number): undefined
// Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame).
function cancelAnimFrame(id) {
if (id) {
cancelFn.call(window, id);
}
}
var Util = {
__proto__: null,
extend: extend,
create: create$2,
bind: bind,
get lastId () { return lastId; },
stamp: stamp,
throttle: throttle,
wrapNum: wrapNum,
falseFn: falseFn,
formatNum: formatNum,
trim: trim,
splitWords: splitWords,
setOptions: setOptions,
getParamString: getParamString,
template: template,
isArray: isArray,
indexOf: indexOf,
emptyImageUrl: emptyImageUrl,
requestFn: requestFn,
cancelFn: cancelFn,
requestAnimFrame: requestAnimFrame,
cancelAnimFrame: cancelAnimFrame
};
// @class Class
// @aka L.Class
// @section
// @uninheritable
// Thanks to John Resig and Dean Edwards for inspiration!
function Class() {}
Class.extend = function (props) {
// @function extend(props: Object): Function
// [Extends the current class](#class-inheritance) given the properties to be included.
// Returns a Javascript function that is a class constructor (to be called with `new`).
var NewClass = function () {
setOptions(this);
// call the constructor
if (this.initialize) {
this.initialize.apply(this, arguments);
}
// call all constructor hooks
this.callInitHooks();
};
var parentProto = NewClass.__super__ = this.prototype;
var proto = create$2(parentProto);
proto.constructor = NewClass;
NewClass.prototype = proto;
// inherit parent's statics
for (var i in this) {
if (Object.prototype.hasOwnProperty.call(this, i) && i !== 'prototype' && i !== '__super__') {
NewClass[i] = this[i];
}
}
// mix static properties into the class
if (props.statics) {
extend(NewClass, props.statics);
}
// mix includes into the prototype
if (props.includes) {
checkDeprecatedMixinEvents(props.includes);
extend.apply(null, [proto].concat(props.includes));
}
// mix given properties into the prototype
extend(proto, props);
delete proto.statics;
delete proto.includes;
// merge options
if (proto.options) {
proto.options = parentProto.options ? create$2(parentProto.options) : {};
extend(proto.options, props.options);
}
proto._initHooks = [];
// add method for calling all hooks
proto.callInitHooks = function () {
if (this._initHooksCalled) { return; }
if (parentProto.callInitHooks) {
parentProto.callInitHooks.call(this);
}
this._initHooksCalled = true;
for (var i = 0, len = proto._initHooks.length; i < len; i++) {
proto._initHooks[i].call(this);
}
};
return NewClass;
};
// @function include(properties: Object): this
// [Includes a mixin](#class-includes) into the current class.
Class.include = function (props) {
var parentOptions = this.prototype.options;
extend(this.prototype, props);
if (props.options) {
this.prototype.options = parentOptions;
this.mergeOptions(props.options);
}
return this;
};
// @function mergeOptions(options: Object): this
// [Merges `options`](#class-options) into the defaults of the class.
Class.mergeOptions = function (options) {
extend(this.prototype.options, options);
return this;
};
// @function addInitHook(fn: Function): this
// Adds a [constructor hook](#class-constructor-hooks) to the class.
Class.addInitHook = function (fn) { // (Function) || (String, args...)
var args = Array.prototype.slice.call(arguments, 1);
var init = typeof fn === 'function' ? fn : function () {
this[fn].apply(this, args);
};
this.prototype._initHooks = this.prototype._initHooks || [];
this.prototype._initHooks.push(init);
return this;
};
function checkDeprecatedMixinEvents(includes) {
/* global L: true */
if (typeof L === 'undefined' || !L || !L.Mixin) { return; }
includes = isArray(includes) ? includes : [includes];
for (var i = 0; i < includes.length; i++) {
if (includes[i] === L.Mixin.Events) {
console.warn('Deprecated include of L.Mixin.Events: ' +
'this property will be removed in future releases, ' +
'please inherit from L.Evented instead.', new Error().stack);
}
}
}
/*
* @class Evented
* @aka L.Evented
* @inherits Class
*
* A set of methods shared between event-powered classes (like `Map` and `Marker`). Generally, events allow you to execute some function when something happens with an object (e.g. the user clicks on the map, causing the map to fire `'click'` event).
*
* @example
*
* ```js
* map.on('click', function(e) {
* alert(e.latlng);
* } );
* ```
*
* Leaflet deals with event listeners by reference, so if you want to add a listener and then remove it, define it as a function:
*
* ```js
* function onClick(e) { ... }
*
* map.on('click', onClick);
* map.off('click', onClick);
* ```
*/
var Events = {
/* @method on(type: String, fn: Function, context?: Object): this
* Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`).
*
* @alternative
* @method on(eventMap: Object): this
* Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
*/
on: function (types, fn, context) {
// types can be a map of types/handlers
if (typeof types === 'object') {
for (var type in types) {
// we don't process space-separated events here for performance;
// it's a hot path since Layer uses the on(obj) syntax
this._on(type, types[type], fn);
}
} else {
// types can be a string of space-separated words
types = splitWords(types);
for (var i = 0, len = types.length; i < len; i++) {
this._on(types[i], fn, context);
}
}
return this;
},
/* @method off(type: String, fn?: Function, context?: Object): this
* Removes a previously added listener function. If no function is specified, it will remove all the listeners of that particular event from the object. Note that if you passed a custom context to `on`, you must pass the same context to `off` in order to remove the listener.
*
* @alternative
* @method off(eventMap: Object): this
* Removes a set of type/listener pairs.
*
* @alternative
* @method off: this
* Removes all listeners to all events on the object. This includes implicitly attached events.
*/
off: function (types, fn, context) {
if (!arguments.length) {
// clear all listeners if called without arguments
delete this._events;
} else if (typeof types === 'object') {
for (var type in types) {
this._off(type, types[type], fn);
}
} else {
types = splitWords(types);
var removeAll = arguments.length === 1;
for (var i = 0, len = types.length; i < len; i++) {
if (removeAll) {
this._off(types[i]);
} else {
this._off(types[i], fn, context);
}
}
}
return this;
},
// attach listener (without syntactic sugar now)
_on: function (type, fn, context, _once) {
if (typeof fn !== 'function') {
console.warn('wrong listener type: ' + typeof fn);
return;
}
// check if fn already there
if (this._listens(type, fn, context) !== false) {
return;
}
if (context === this) {
// Less memory footprint.
context = undefined;
}
var newListener = {fn: fn, ctx: context};
if (_once) {
newListener.once = true;
}
this._events = this._events || {};
this._events[type] = this._events[type] || [];
this._events[type].push(newListener);
},
_off: function (type, fn, context) {
var listeners,
i,
len;
if (!this._events) {
return;
}
listeners = this._events[type];
if (!listeners) {
return;
}
if (arguments.length === 1) { // remove all
if (this._firingCount) {
// Set all removed listeners to noop
// so they are not called if remove happens in fire
for (i = 0, len = listeners.length; i < len; i++) {
listeners[i].fn = falseFn;
}
}
// clear all listeners for a type if function isn't specified
delete this._events[type];
return;
}
if (typeof fn !== 'function') {
console.warn('wrong listener type: ' + typeof fn);
return;
}
// find fn and remove it
var index = this._listens(type, fn, context);
if (index !== false) {
var listener = listeners[index];
if (this._firingCount) {
// set the removed listener to noop so that's not called if remove happens in fire
listener.fn = falseFn;
/* copy array in case events are being fired */
this._events[type] = listeners = listeners.slice();
}
listeners.splice(index, 1);
}
},
// @method fire(type: String, data?: Object, propagate?: Boolean): this
// Fires an event of the specified type. You can optionally provide a data
// object — the first argument of the listener function will contain its
// properties. The event can optionally be propagated to event parents.
fire: function (type, data, propagate) {
if (!this.listens(type, propagate)) { return this; }
var event = extend({}, data, {
type: type,
target: this,
sourceTarget: data && data.sourceTarget || this
});
if (this._events) {
var listeners = this._events[type];
if (listeners) {
this._firingCount = (this._firingCount + 1) || 1;
for (var i = 0, len = listeners.length; i < len; i++) {
var l = listeners[i];
// off overwrites l.fn, so we need to copy fn to a var
var fn = l.fn;
if (l.once) {
this.off(type, fn, l.ctx);
}
fn.call(l.ctx || this, event);
}
this._firingCount--;
}
}
if (propagate) {
// propagate the event to parents (set with addEventParent)
this._propagateEvent(event);
}
return this;
},
// @method listens(type: String, propagate?: Boolean): Boolean
// @method listens(type: String, fn: Function, context?: Object, propagate?: Boolean): Boolean
// Returns `true` if a particular event type has any listeners attached to it.
// The verification can optionally be propagated, it will return `true` if parents have the listener attached to it.
listens: function (type, fn, context, propagate) {
if (typeof type !== 'string') {
console.warn('"string" type argument expected');
}
// we don't overwrite the input `fn` value, because we need to use it for propagation
var _fn = fn;
if (typeof fn !== 'function') {
propagate = !!fn;
_fn = undefined;
context = undefined;
}
var listeners = this._events && this._events[type];
if (listeners && listeners.length) {
if (this._listens(type, _fn, context) !== false) {
return true;
}
}
if (propagate) {
// also check parents for listeners if event propagates
for (var id in this._eventParents) {
if (this._eventParents[id].listens(type, fn, context, propagate)) { return true; }
}
}
return false;
},
// returns the index (number) or false
_listens: function (type, fn, context) {
if (!this._events) {
return false;
}
var listeners = this._events[type] || [];
if (!fn) {
return !!listeners.length;
}
if (context === this) {
// Less memory footprint.
context = undefined;
}
for (var i = 0, len = listeners.length; i < len; i++) {
if (listeners[i].fn === fn && listeners[i].ctx === context) {
return i;
}
}
return false;
},
// @method once(…): this
// Behaves as [`on(…)`](#evented-on), except the listener will only get fired once and then removed.
once: function (types, fn, context) {
// types can be a map of types/handlers
if (typeof types === 'object') {
for (var type in types) {
// we don't process space-separated events here for performance;
// it's a hot path since Layer uses the on(obj) syntax
this._on(type, types[type], fn, true);
}
} else {
// types can be a string of space-separated words
types = splitWords(types);
for (var i = 0, len = types.length; i < len; i++) {
this._on(types[i], fn, context, true);
}
}
return this;
},
// @method addEventParent(obj: Evented): this
// Adds an event parent - an `Evented` that will receive propagated events
addEventParent: function (obj) {
this._eventParents = this._eventParents |