ot-browser/www/leaflet-realtime.js

842 lines
25 KiB
JavaScript

!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),(f.L||(f.L={})).Realtime=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
/*!
* Reqwest! A general purpose XHR connection manager
* license MIT (c) Dustin Diaz 2014
* https://github.com/ded/reqwest
*/
!function (name, context, definition) {
if (typeof module != 'undefined' && module.exports) module.exports = definition()
else if (typeof define == 'function' && define.amd) define(definition)
else context[name] = definition()
}('reqwest', this, function () {
var win = window
, doc = document
, httpsRe = /^http/
, protocolRe = /(^\w+):\/\//
, twoHundo = /^(20\d|1223)$/ //http://stackoverflow.com/questions/10046972/msie-returns-status-code-of-1223-for-ajax-request
, byTag = 'getElementsByTagName'
, readyState = 'readyState'
, contentType = 'Content-Type'
, requestedWith = 'X-Requested-With'
, head = doc[byTag]('head')[0]
, uniqid = 0
, callbackPrefix = 'reqwest_' + (+new Date())
, lastValue // data stored by the most recent JSONP callback
, xmlHttpRequest = 'XMLHttpRequest'
, xDomainRequest = 'XDomainRequest'
, noop = function () {}
, isArray = typeof Array.isArray == 'function'
? Array.isArray
: function (a) {
return a instanceof Array
}
, defaultHeaders = {
'contentType': 'application/x-www-form-urlencoded'
, 'requestedWith': xmlHttpRequest
, 'accept': {
'*': 'text/javascript, text/html, application/xml, text/xml, */*'
, 'xml': 'application/xml, text/xml'
, 'html': 'text/html'
, 'text': 'text/plain'
, 'json': 'application/json, text/javascript'
, 'js': 'application/javascript, text/javascript'
}
}
, xhr = function(o) {
// is it x-domain
if (o['crossOrigin'] === true) {
var xhr = win[xmlHttpRequest] ? new XMLHttpRequest() : null
if (xhr && 'withCredentials' in xhr) {
return xhr
} else if (win[xDomainRequest]) {
return new XDomainRequest()
} else {
throw new Error('Browser does not support cross-origin requests')
}
} else if (win[xmlHttpRequest]) {
return new XMLHttpRequest()
} else {
return new ActiveXObject('Microsoft.XMLHTTP')
}
}
, globalSetupOptions = {
dataFilter: function (data) {
return data
}
}
function succeed(r) {
var protocol = protocolRe.exec(r.url);
protocol = (protocol && protocol[1]) || window.location.protocol;
return httpsRe.test(protocol) ? twoHundo.test(r.request.status) : !!r.request.response;
}
function handleReadyState(r, success, error) {
return function () {
// use _aborted to mitigate against IE err c00c023f
// (can't read props on aborted request objects)
if (r._aborted) return error(r.request)
if (r._timedOut) return error(r.request, 'Request is aborted: timeout')
if (r.request && r.request[readyState] == 4) {
r.request.onreadystatechange = noop
if (succeed(r)) success(r.request)
else
error(r.request)
}
}
}
function setHeaders(http, o) {
var headers = o['headers'] || {}
, h
headers['Accept'] = headers['Accept']
|| defaultHeaders['accept'][o['type']]
|| defaultHeaders['accept']['*']
var isAFormData = typeof FormData === 'function' && (o['data'] instanceof FormData);
// breaks cross-origin requests with legacy browsers
if (!o['crossOrigin'] && !headers[requestedWith]) headers[requestedWith] = defaultHeaders['requestedWith']
if (!headers[contentType] && !isAFormData) headers[contentType] = o['contentType'] || defaultHeaders['contentType']
for (h in headers)
headers.hasOwnProperty(h) && 'setRequestHeader' in http && http.setRequestHeader(h, headers[h])
}
function setCredentials(http, o) {
if (typeof o['withCredentials'] !== 'undefined' && typeof http.withCredentials !== 'undefined') {
http.withCredentials = !!o['withCredentials']
}
}
function generalCallback(data) {
lastValue = data
}
function urlappend (url, s) {
return url + (/\?/.test(url) ? '&' : '?') + s
}
function handleJsonp(o, fn, err, url) {
var reqId = uniqid++
, cbkey = o['jsonpCallback'] || 'callback' // the 'callback' key
, cbval = o['jsonpCallbackName'] || reqwest.getcallbackPrefix(reqId)
, cbreg = new RegExp('((^|\\?|&)' + cbkey + ')=([^&]+)')
, match = url.match(cbreg)
, script = doc.createElement('script')
, loaded = 0
, isIE10 = navigator.userAgent.indexOf('MSIE 10.0') !== -1
if (match) {
if (match[3] === '?') {
url = url.replace(cbreg, '$1=' + cbval) // wildcard callback func name
} else {
cbval = match[3] // provided callback func name
}
} else {
url = urlappend(url, cbkey + '=' + cbval) // no callback details, add 'em
}
win[cbval] = generalCallback
script.type = 'text/javascript'
script.src = url
script.async = true
if (typeof script.onreadystatechange !== 'undefined' && !isIE10) {
// need this for IE due to out-of-order onreadystatechange(), binding script
// execution to an event listener gives us control over when the script
// is executed. See http://jaubourg.net/2010/07/loading-script-as-onclick-handler-of.html
script.htmlFor = script.id = '_reqwest_' + reqId
}
script.onload = script.onreadystatechange = function () {
if ((script[readyState] && script[readyState] !== 'complete' && script[readyState] !== 'loaded') || loaded) {
return false
}
script.onload = script.onreadystatechange = null
script.onclick && script.onclick()
// Call the user callback with the last value stored and clean up values and scripts.
fn(lastValue)
lastValue = undefined
head.removeChild(script)
loaded = 1
}
// Add the script to the DOM head
head.appendChild(script)
// Enable JSONP timeout
return {
abort: function () {
script.onload = script.onreadystatechange = null
err({}, 'Request is aborted: timeout', {})
lastValue = undefined
head.removeChild(script)
loaded = 1
}
}
}
function getRequest(fn, err) {
var o = this.o
, method = (o['method'] || 'GET').toUpperCase()
, url = typeof o === 'string' ? o : o['url']
// convert non-string objects to query-string form unless o['processData'] is false
, data = (o['processData'] !== false && o['data'] && typeof o['data'] !== 'string')
? reqwest.toQueryString(o['data'])
: (o['data'] || null)
, http
, sendWait = false
// if we're working on a GET request and we have data then we should append
// query string to end of URL and not post data
if ((o['type'] == 'jsonp' || method == 'GET') && data) {
url = urlappend(url, data)
data = null
}
if (o['type'] == 'jsonp') return handleJsonp(o, fn, err, url)
// get the xhr from the factory if passed
// if the factory returns null, fall-back to ours
http = (o.xhr && o.xhr(o)) || xhr(o)
http.open(method, url, o['async'] === false ? false : true)
setHeaders(http, o)
setCredentials(http, o)
if (win[xDomainRequest] && http instanceof win[xDomainRequest]) {
http.onload = fn
http.onerror = err
// NOTE: see
// http://social.msdn.microsoft.com/Forums/en-US/iewebdevelopment/thread/30ef3add-767c-4436-b8a9-f1ca19b4812e
http.onprogress = function() {}
sendWait = true
} else {
http.onreadystatechange = handleReadyState(this, fn, err)
}
o['before'] && o['before'](http)
if (sendWait) {
setTimeout(function () {
http.send(data)
}, 200)
} else {
http.send(data)
}
return http
}
function Reqwest(o, fn) {
this.o = o
this.fn = fn
init.apply(this, arguments)
}
function setType(header) {
// json, javascript, text/plain, text/html, xml
if (header.match('json')) return 'json'
if (header.match('javascript')) return 'js'
if (header.match('text')) return 'html'
if (header.match('xml')) return 'xml'
}
function init(o, fn) {
this.url = typeof o == 'string' ? o : o['url']
this.timeout = null
// whether request has been fulfilled for purpose
// of tracking the Promises
this._fulfilled = false
// success handlers
this._successHandler = function(){}
this._fulfillmentHandlers = []
// error handlers
this._errorHandlers = []
// complete (both success and fail) handlers
this._completeHandlers = []
this._erred = false
this._responseArgs = {}
var self = this
fn = fn || function () {}
if (o['timeout']) {
this.timeout = setTimeout(function () {
timedOut()
}, o['timeout'])
}
if (o['success']) {
this._successHandler = function () {
o['success'].apply(o, arguments)
}
}
if (o['error']) {
this._errorHandlers.push(function () {
o['error'].apply(o, arguments)
})
}
if (o['complete']) {
this._completeHandlers.push(function () {
o['complete'].apply(o, arguments)
})
}
function complete (resp) {
o['timeout'] && clearTimeout(self.timeout)
self.timeout = null
while (self._completeHandlers.length > 0) {
self._completeHandlers.shift()(resp)
}
}
function success (resp) {
var type = o['type'] || resp && setType(resp.getResponseHeader('Content-Type')) // resp can be undefined in IE
resp = (type !== 'jsonp') ? self.request : resp
// use global data filter on response text
var filteredResponse = globalSetupOptions.dataFilter(resp.responseText, type)
, r = filteredResponse
try {
resp.responseText = r
} catch (e) {
// can't assign this in IE<=8, just ignore
}
if (r) {
switch (type) {
case 'json':
try {
resp = win.JSON ? win.JSON.parse(r) : eval('(' + r + ')')
} catch (err) {
return error(resp, 'Could not parse JSON in response', err)
}
break
case 'js':
resp = eval(r)
break
case 'html':
resp = r
break
case 'xml':
resp = resp.responseXML
&& resp.responseXML.parseError // IE trololo
&& resp.responseXML.parseError.errorCode
&& resp.responseXML.parseError.reason
? null
: resp.responseXML
break
}
}
self._responseArgs.resp = resp
self._fulfilled = true
fn(resp)
self._successHandler(resp)
while (self._fulfillmentHandlers.length > 0) {
resp = self._fulfillmentHandlers.shift()(resp)
}
complete(resp)
}
function timedOut() {
self._timedOut = true
self.request.abort()
}
function error(resp, msg, t) {
resp = self.request
self._responseArgs.resp = resp
self._responseArgs.msg = msg
self._responseArgs.t = t
self._erred = true
while (self._errorHandlers.length > 0) {
self._errorHandlers.shift()(resp, msg, t)
}
complete(resp)
}
this.request = getRequest.call(this, success, error)
}
Reqwest.prototype = {
abort: function () {
this._aborted = true
this.request.abort()
}
, retry: function () {
init.call(this, this.o, this.fn)
}
/**
* Small deviation from the Promises A CommonJs specification
* http://wiki.commonjs.org/wiki/Promises/A
*/
/**
* `then` will execute upon successful requests
*/
, then: function (success, fail) {
success = success || function () {}
fail = fail || function () {}
if (this._fulfilled) {
this._responseArgs.resp = success(this._responseArgs.resp)
} else if (this._erred) {
fail(this._responseArgs.resp, this._responseArgs.msg, this._responseArgs.t)
} else {
this._fulfillmentHandlers.push(success)
this._errorHandlers.push(fail)
}
return this
}
/**
* `always` will execute whether the request succeeds or fails
*/
, always: function (fn) {
if (this._fulfilled || this._erred) {
fn(this._responseArgs.resp)
} else {
this._completeHandlers.push(fn)
}
return this
}
/**
* `fail` will execute when the request fails
*/
, fail: function (fn) {
if (this._erred) {
fn(this._responseArgs.resp, this._responseArgs.msg, this._responseArgs.t)
} else {
this._errorHandlers.push(fn)
}
return this
}
, 'catch': function (fn) {
return this.fail(fn)
}
}
function reqwest(o, fn) {
return new Reqwest(o, fn)
}
// normalize newline variants according to spec -> CRLF
function normalize(s) {
return s ? s.replace(/\r?\n/g, '\r\n') : ''
}
function serial(el, cb) {
var n = el.name
, t = el.tagName.toLowerCase()
, optCb = function (o) {
// IE gives value="" even where there is no value attribute
// 'specified' ref: http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-862529273
if (o && !o['disabled'])
cb(n, normalize(o['attributes']['value'] && o['attributes']['value']['specified'] ? o['value'] : o['text']))
}
, ch, ra, val, i
// don't serialize elements that are disabled or without a name
if (el.disabled || !n) return
switch (t) {
case 'input':
if (!/reset|button|image|file/i.test(el.type)) {
ch = /checkbox/i.test(el.type)
ra = /radio/i.test(el.type)
val = el.value
// WebKit gives us "" instead of "on" if a checkbox has no value, so correct it here
;(!(ch || ra) || el.checked) && cb(n, normalize(ch && val === '' ? 'on' : val))
}
break
case 'textarea':
cb(n, normalize(el.value))
break
case 'select':
if (el.type.toLowerCase() === 'select-one') {
optCb(el.selectedIndex >= 0 ? el.options[el.selectedIndex] : null)
} else {
for (i = 0; el.length && i < el.length; i++) {
el.options[i].selected && optCb(el.options[i])
}
}
break
}
}
// collect up all form elements found from the passed argument elements all
// the way down to child elements; pass a '<form>' or form fields.
// called with 'this'=callback to use for serial() on each element
function eachFormElement() {
var cb = this
, e, i
, serializeSubtags = function (e, tags) {
var i, j, fa
for (i = 0; i < tags.length; i++) {
fa = e[byTag](tags[i])
for (j = 0; j < fa.length; j++) serial(fa[j], cb)
}
}
for (i = 0; i < arguments.length; i++) {
e = arguments[i]
if (/input|select|textarea/i.test(e.tagName)) serial(e, cb)
serializeSubtags(e, [ 'input', 'select', 'textarea' ])
}
}
// standard query string style serialization
function serializeQueryString() {
return reqwest.toQueryString(reqwest.serializeArray.apply(null, arguments))
}
// { 'name': 'value', ... } style serialization
function serializeHash() {
var hash = {}
eachFormElement.apply(function (name, value) {
if (name in hash) {
hash[name] && !isArray(hash[name]) && (hash[name] = [hash[name]])
hash[name].push(value)
} else hash[name] = value
}, arguments)
return hash
}
// [ { name: 'name', value: 'value' }, ... ] style serialization
reqwest.serializeArray = function () {
var arr = []
eachFormElement.apply(function (name, value) {
arr.push({name: name, value: value})
}, arguments)
return arr
}
reqwest.serialize = function () {
if (arguments.length === 0) return ''
var opt, fn
, args = Array.prototype.slice.call(arguments, 0)
opt = args.pop()
opt && opt.nodeType && args.push(opt) && (opt = null)
opt && (opt = opt.type)
if (opt == 'map') fn = serializeHash
else if (opt == 'array') fn = reqwest.serializeArray
else fn = serializeQueryString
return fn.apply(null, args)
}
reqwest.toQueryString = function (o, trad) {
var prefix, i
, traditional = trad || false
, s = []
, enc = encodeURIComponent
, add = function (key, value) {
// If value is a function, invoke it and return its value
value = ('function' === typeof value) ? value() : (value == null ? '' : value)
s[s.length] = enc(key) + '=' + enc(value)
}
// If an array was passed in, assume that it is an array of form elements.
if (isArray(o)) {
for (i = 0; o && i < o.length; i++) add(o[i]['name'], o[i]['value'])
} else {
// If traditional, encode the "old" way (the way 1.3.2 or older
// did it), otherwise encode params recursively.
for (prefix in o) {
if (o.hasOwnProperty(prefix)) buildParams(prefix, o[prefix], traditional, add)
}
}
// spaces should be + according to spec
return s.join('&').replace(/%20/g, '+')
}
function buildParams(prefix, obj, traditional, add) {
var name, i, v
, rbracket = /\[\]$/
if (isArray(obj)) {
// Serialize array item.
for (i = 0; obj && i < obj.length; i++) {
v = obj[i]
if (traditional || rbracket.test(prefix)) {
// Treat each array item as a scalar.
add(prefix, v)
} else {
buildParams(prefix + '[' + (typeof v === 'object' ? i : '') + ']', v, traditional, add)
}
}
} else if (obj && obj.toString() === '[object Object]') {
// Serialize object item.
for (name in obj) {
buildParams(prefix + '[' + name + ']', obj[name], traditional, add)
}
} else {
// Serialize scalar item.
add(prefix, obj)
}
}
reqwest.getcallbackPrefix = function () {
return callbackPrefix
}
// jQuery and Zepto compatibility, differences can be remapped here so you can call
// .ajax.compat(options, callback)
reqwest.compat = function (o, fn) {
if (o) {
o['type'] && (o['method'] = o['type']) && delete o['type']
o['dataType'] && (o['type'] = o['dataType'])
o['jsonpCallback'] && (o['jsonpCallbackName'] = o['jsonpCallback']) && delete o['jsonpCallback']
o['jsonp'] && (o['jsonpCallback'] = o['jsonp'])
}
return new Reqwest(o, fn)
}
reqwest.ajaxSetup = function (options) {
options = options || {}
for (var k in options) {
globalSetupOptions[k] = options[k]
}
}
return reqwest
});
},{}],2:[function(require,module,exports){
(function (global){
"use strict";
var L = (typeof window !== "undefined" ? window.L : typeof global !== "undefined" ? global.L : null),
reqwest = require('reqwest');
L.Realtime = L.GeoJSON.extend({
includes: L.Mixin.Events,
options: {
start: true,
interval: 60 * 1000,
getFeatureId: function(f) {
return f.properties.id;
},
updateFeature: function(f, oldLayer, newLayer) {
if (f.geometry.type === 'Point') {
oldLayer.setLatLng(newLayer.getLatLng());
return oldLayer;
} else {
return newLayer;
}
},
cache: false
},
initialize: function(src, options) {
L.GeoJSON.prototype.initialize.call(this, undefined, options);
if (typeof(src) === 'function') {
this._src = src;
} else {
this._src = L.bind(function(responseHandler, errorHandler) {
var reqOptions = this.options.cache ? src : this._bustCache(src);
reqwest(reqOptions).then(responseHandler, errorHandler);
}, this);
}
this._features = {};
this._featureLayers = {};
if (this.options.start) {
this.start();
}
},
start: function() {
if (!this._timer) {
this._timer = setInterval(L.bind(this.update, this),
this.options.interval);
this.update();
}
return this;
},
stop: function() {
if (this._timer) {
clearTimeout(this._timer);
delete this._timer;
}
return this;
},
isRunning: function() {
return this._timer;
},
update: function(geojson) {
var responseHandler,
errorHandler;
if (geojson) {
this._onNewData(false, geojson);
} else {
responseHandler = L.bind(function(data) { this._onNewData(true, data); }, this);
errorHandler = L.bind(this._onError, this);
this._src(responseHandler, errorHandler);
}
return this;
},
remove: function(geojson) {
var features = L.Util.isArray(geojson) ? geojson : geojson.features ? geojson.features : [geojson],
exit = {},
i,
len,
fId;
for (i = 0, len = features.length; i < len; i++) {
fId = this.options.getFeatureId(features[i]);
this.removeLayer(this._featureLayers[fId]);
exit[fId] = this._features[fId];
delete this._features[fId];
delete this._featureLayers[fId];
}
this.fire('update', {
features: this._features,
enter: {},
update: {},
exit: exit
});
return this;
},
getLayer: function(featureId) {
return this._featureLayers[featureId];
},
getFeature: function(featureId) {
return this._features[featureId];
},
_onNewData: function(removeMissing, response) {
var oef = this.options.onEachFeature,
layersToRemove = [],
features = {},
enter = {},
update = {},
exit = {},
i;
this.options.onEachFeature = L.bind(function onEachFeature(f, l) {
var fId,
oldLayer,
newLayer;
if (oef) {
oef(f, l);
}
fId = this.options.getFeatureId(f);
oldLayer = this._featureLayers[fId];
if (oldLayer) {
newLayer = this.options.updateFeature(f, oldLayer, l);
if (newLayer !== oldLayer) {
this.removeLayer(oldLayer);
}
if (newLayer !== l) {
layersToRemove.push(l);
}
l = newLayer;
update[fId] = f;
} else {
enter[fId] = f;
}
this._featureLayers[fId] = l;
this._features[fId] = features[fId] = f;
}, this);
this.addData(response);
if (removeMissing) {
exit = this._removeUnknown(features);
}
for (i = 0; i < layersToRemove.length; i++) {
this.removeLayer(layersToRemove[i]);
}
this.fire('update', {
features: this._features,
enter: enter,
update: update,
exit: exit
});
this.options.onEachFeature = oef;
},
_onError: function(err, msg) {
this.fire('error', {
error: err,
message: msg
});
},
_removeUnknown: function(known) {
var fId,
removed = {};
for (fId in this._featureLayers) {
if (!known[fId]) {
this.removeLayer(this._featureLayers[fId]);
removed[fId] = this._features[fId];
delete this._featureLayers[fId];
delete this._features[fId];
}
}
return removed;
},
_bustCache: function(src) {
function fixUrl(url) {
return url + L.Util.getParamString({'_': new Date().getTime()});
}
if (typeof src === 'string' || src instanceof String) {
return fixUrl(src);
} else {
return L.extend({}, src, {url: fixUrl(src.url)});
}
}
});
L.realtime = function(src, options) {
return new L.Realtime(src, options);
};
L.Realtime.reqwest = reqwest;
module.exports = L.Realtime;
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"reqwest":1}]},{},[2])(2)
});