lib/assets/javascripts/chartkick-chartnado.js
/*
* Derived from:
*
* Chartkick.js
* Create beautiful Javascript charts with minimal code
* https://github.com/ankane/chartkick.js
* v1.2.2
* MIT License
*/
/*jslint browser: true, indent: 2, plusplus: true, vars: true */
(function (window) {
'use strict';
var config = window.Chartkick || {};
var Chartkick, ISO8601_PATTERN, DECIMAL_SEPARATOR, adapters = [];
// helpers
function isArray(variable) {
return Object.prototype.toString.call(variable) === "[object Array]";
}
function isFunction(variable) {
return variable instanceof Function;
}
function isPlainObject(variable) {
return !isFunction(variable) && variable instanceof Object;
}
// https://github.com/madrobby/zepto/blob/master/src/zepto.js
function extend(target, source) {
var key;
for (key in source) {
if (isPlainObject(source[key]) || isArray(source[key])) {
if (isPlainObject(source[key]) && !isPlainObject(target[key])) {
target[key] = {};
}
if (isArray(source[key]) && !isArray(target[key])) {
target[key] = [];
}
extend(target[key], source[key]);
} else if (source[key] !== undefined) {
target[key] = source[key];
}
}
}
function merge(obj1, obj2) {
var target = {};
extend(target, obj1);
extend(target, obj2);
return target;
}
// https://github.com/Do/iso8601.js
ISO8601_PATTERN = /(\d\d\d\d)(\-)?(\d\d)(\-)?(\d\d)(T)?(\d\d)(:)?(\d\d)?(:)?(\d\d)?([\.,]\d+)?($|Z|([\+\-])(\d\d)(:)?(\d\d)?)/i;
DECIMAL_SEPARATOR = String(1.5).charAt(1);
function parseISO8601(input) {
var day, hour, matches, milliseconds, minutes, month, offset, result, seconds, type, year;
type = Object.prototype.toString.call(input);
if (type === '[object Date]') {
return input;
}
if (type !== '[object String]') {
return;
}
if (matches = input.match(ISO8601_PATTERN)) {
year = parseInt(matches[1], 10);
month = parseInt(matches[3], 10) - 1;
day = parseInt(matches[5], 10);
hour = parseInt(matches[7], 10);
minutes = matches[9] ? parseInt(matches[9], 10) : 0;
seconds = matches[11] ? parseInt(matches[11], 10) : 0;
milliseconds = matches[12] ? parseFloat(DECIMAL_SEPARATOR + matches[12].slice(1)) * 1000 : 0;
result = Date.UTC(year, month, day, hour, minutes, seconds, milliseconds);
if (matches[13] && matches[14]) {
offset = matches[15] * 60;
if (matches[17]) {
offset += parseInt(matches[17], 10);
}
offset *= matches[14] === '-' ? -1 : 1;
result -= offset * 60 * 1000;
}
return new Date(result);
}
}
// end iso8601.js
function negativeValues(series) {
var i, j, data;
for (i = 0; i < series.length; i++) {
data = series[i].data;
for (j = 0; j < data.length; j++) {
if (data[j][1] < 0) {
return true;
}
}
}
return false;
}
function jsOptionsFunc(defaultOptions, hideLegend, setMin, setMax, setStacked) {
return function (series, opts, chartOptions) {
var options = merge({}, defaultOptions);
options = merge(options, chartOptions || {});
// hide legend
// this is *not* an external option!
if (opts.hideLegend) {
hideLegend(options);
}
// min
if ("min" in opts) {
setMin(options, opts.min);
} else if (!negativeValues(series)) {
setMin(options, 0);
}
// max
if ("max" in opts) {
setMax(options, opts.max);
}
if (opts.stacked) {
setStacked(options);
}
if (opts.colors) {
options.colors = opts.colors;
}
// merge library last
options = merge(options, opts.library || {});
return options;
};
}
function setText(element, text) {
if (document.body.innerText) {
element.innerText = text;
} else {
element.textContent = text;
}
}
function chartError(element, message) {
setText(element, "Error Loading Chart: " + message);
element.style.color = "#ff0000";
}
function getJSON(element, url, options, success) {
var $ = window.jQuery || window.Zepto || window.$;
$.ajax($.extend({}, options, {
dataType: "json",
url: url,
success: success,
error: function (jqXHR, textStatus, errorThrown) {
var message = (typeof errorThrown === "string") ? errorThrown : errorThrown.message;
chartError(element, message);
}
}));
}
function errorCatcher(chart, callback) {
try {
callback(chart);
} catch (err) {
chartError(chart.element, err.message);
throw err;
}
}
function fetchDataSource(chart, callback) {
if (typeof chart.dataSource === "string") {
getJSON(chart.element, chart.dataSource, chart.options.ajaxOptions, function (data, textStatus, jqXHR) {
chart.data = data;
errorCatcher(chart, callback);
});
} else {
chart.data = chart.dataSource;
errorCatcher(chart, callback);
}
}
// type conversions
function toStr(n) {
return "" + n;
}
function toFloat(n) {
return parseFloat(n);
}
function toDate(n) {
if (typeof n !== "object") {
if (typeof n === "number") {
n = new Date(n * 1000); // ms
} else { // str
// try our best to get the str into iso8601
// TODO be smarter about this
var str = n.replace(/ /, "T").replace(" ", "").replace("UTC", "Z");
n = parseISO8601(str) || new Date(n);
}
}
return n;
}
function toArr(n) {
if (!isArray(n)) {
var arr = [], i;
for (i in n) {
if (n.hasOwnProperty(i)) {
arr.push([i, n[i]]);
}
}
n = arr;
}
return n;
}
function sortByTime(a, b) {
return a[0].getTime() - b[0].getTime();
}
if ("Highcharts" in window) {
var HighchartsAdapter = new function () {
var Highcharts = window.Highcharts;
var defaultOptions = {
chart: {},
xAxis: {
labels: {
style: {
fontSize: "12px"
}
}
},
yAxis: {
title: {
text: null
},
labels: {
style: {
fontSize: "12px"
}
}
},
title: {
text: null
},
credits: {
enabled: false
},
legend: {
borderWidth: 0
},
tooltip: {
style: {
fontSize: "12px"
}
},
plotOptions: {
areaspline: {},
series: {
marker: {}
}
}
};
var hideLegend = function (options) {
options.legend.enabled = false;
};
var setMin = function (options, min) {
options.yAxis.min = min;
};
var setMax = function (options, max) {
options.yAxis.max = max;
};
var setStacked = function (options) {
options.plotOptions.series.stacking = "normal";
};
var jsOptions = jsOptionsFunc(defaultOptions, hideLegend, setMin, setMax, setStacked);
this.renderLineChart = function (chart, chartType) {
chartType = chartType || "spline";
var chartOptions = {};
if (chartType === "areaspline") {
chartOptions = {
plotOptions: {
areaspline: {
stacking: "normal"
},
series: {
marker: {
enabled: false
}
}
}
};
}
var options = jsOptions(chart.data, chart.options, chartOptions), data, i, j;
options.xAxis.type = chart.options.discrete ? "category" : "datetime";
options.chart.type = chartType;
options.chart.renderTo = chart.element.id;
var series = chart.data;
for (i = 0; i < series.length; i++) {
data = series[i].data;
if (!chart.options.discrete) {
for (j = 0; j < data.length; j++) {
data[j][0] = data[j][0].getTime();
}
}
series[i].marker = {symbol: "circle"};
}
options.series = series;
new Highcharts.Chart(options);
};
this.renderPieChart = function (chart) {
var chartOptions = {};
if (chart.options.colors) {
chartOptions.colors = chart.options.colors;
}
var options = merge(merge(defaultOptions, chartOptions), chart.options.library || {});
options.chart.renderTo = chart.element.id;
options.series = [{
type: "pie",
name: "Value",
data: chart.data
}];
new Highcharts.Chart(options);
};
this.renderColumnChart = function (chart, chartType) {
var chartType = chartType || "column";
var series = chart.data;
var options = jsOptions(series, chart.options), i, j, s, d, rows = [];
options.chart.type = chartType;
options.chart.renderTo = chart.element.id;
for (i = 0; i < series.length; i++) {
s = series[i];
for (j = 0; j < s.data.length; j++) {
d = s.data[j];
if (!rows[d[0]]) {
rows[d[0]] = new Array(series.length);
}
rows[d[0]][i] = d[1];
}
}
var categories = [];
for (i in rows) {
if (rows.hasOwnProperty(i)) {
categories.push(i);
}
}
options.xAxis.categories = categories;
var newSeries = [];
for (i = 0; i < series.length; i++) {
d = [];
for (j = 0; j < categories.length; j++) {
d.push(rows[categories[j]][i] || 0);
}
newSeries.push({
name: series[i].name,
data: d
});
}
options.series = newSeries;
new Highcharts.Chart(options);
};
var self = this;
this.renderBarChart = function (chart) {
self.renderColumnChart(chart, "bar");
};
this.renderAreaChart = function (chart) {
self.renderLineChart(chart, "areaspline");
};
};
adapters.push(HighchartsAdapter);
}
if (window.google && window.google.setOnLoadCallback) {
var GoogleChartsAdapter = new function () {
var google = window.google;
var loaded = {};
var callbacks = [];
var runCallbacks = function () {
var cb, call;
for (var i = 0; i < callbacks.length; i++) {
cb = callbacks[i];
call = google.visualization && ((cb.pack == "corechart" && google.visualization.LineChart) || (cb.pack == "timeline" && google.visualization.Timeline))
if (call) {
cb.callback();
callbacks.splice(i, 1);
i--;
}
}
};
var waitForLoaded = function (pack, callback) {
if (!callback) {
callback = pack;
pack = "corechart";
}
callbacks.push({pack: pack, callback: callback});
if (loaded[pack]) {
runCallbacks();
} else {
loaded[pack] = true;
// https://groups.google.com/forum/#!topic/google-visualization-api/fMKJcyA2yyI
var loadOptions = {
packages: [pack],
callback: runCallbacks
};
if (config.language) {
loadOptions.language = config.language;
}
google.load("visualization", "1", loadOptions);
}
};
// Set chart options
var defaultOptions = {
chartArea: {},
fontName: "'Lucida Grande', 'Lucida Sans Unicode', Verdana, Arial, Helvetica, sans-serif",
pointSize: 6,
legend: {
textStyle: {
fontSize: 12,
color: "#444"
},
alignment: "center",
position: "right"
},
curveType: "function",
hAxis: {
textStyle: {
color: "#666",
fontSize: 12
},
gridlines: {
color: "transparent"
},
baselineColor: "#ccc",
viewWindow: {}
},
vAxis: {
textStyle: {
color: "#666",
fontSize: 12
},
baselineColor: "#ccc",
viewWindow: {}
},
tooltip: {
textStyle: {
color: "#666",
fontSize: 12
}
}
};
var hideLegend = function (options) {
options.legend.position = "none";
};
var setMin = function (options, min) {
options.vAxis.viewWindow.min = min;
};
var setMax = function (options, max) {
options.vAxis.viewWindow.max = max;
};
var setBarMin = function (options, min) {
options.hAxis.viewWindow.min = min;
};
var setBarMax = function (options, max) {
options.hAxis.viewWindow.max = max;
};
var setStacked = function (options) {
options.isStacked = true;
};
var jsOptions = jsOptionsFunc(defaultOptions, hideLegend, setMin, setMax, setStacked);
// cant use object as key
var createDataTable = function (series, columnType) {
var data = new google.visualization.DataTable();
data.addColumn(columnType, "");
var i, j, s, d, rows = [], pos, rowPos = [], columns;
for (i = 0, columns = 0; i < series.length; i++, columns++) {
rowPos[i] = columns;
if (series[i].tooltip) {
columns++;
}
}
function setData(key, value, pos, valueIsString) {
var newKey = (columnType === "datetime") ? key.getTime() : key;
if (!rows[newKey]) {
rows[newKey] = new Array(columns);
}
if (!valueIsString) {
value = toFloat(value);
}
rows[newKey][pos] = value;
}
for (i = 0; i < series.length; i++) {
pos = rowPos[i];
s = series[i];
data.addColumn("number", s.name);
for (j = 0; j < s.data.length; j++) {
d = s.data[j];
setData(d[0], toFloat(d[1]), pos);
}
if (s.tooltip) {
data.addColumn({type: 'string', role: 'tooltip'});
for (j = 0; j < s.tooltip.length; j++) {
d = s.tooltip[j];
setData(d[0], d[1], pos + 1, true);
}
}
}
var rows2 = [];
for (i in rows) {
if (rows.hasOwnProperty(i)) {
rows2.push([(columnType === "datetime") ? new Date(toFloat(i)) : i].concat(rows[i]));
}
}
if (columnType === "datetime") {
rows2.sort(sortByTime);
}
data.addRows(rows2);
return data;
};
var resize = function (callback) {
if (window.attachEvent) {
window.attachEvent("onresize", callback);
} else if (window.addEventListener) {
window.addEventListener("resize", callback, true);
}
callback();
};
this.renderLineChart = function (chart) {
waitForLoaded(function () {
var options = jsOptions(chart.data, chart.options);
var data = createDataTable(chart.data, chart.options.discrete ? "string" : "datetime");
chart.chart = new google.visualization.LineChart(chart.element);
resize(function () {
chart.chart.draw(data, options);
});
});
};
this.renderPieChart = function (chart) {
waitForLoaded(function () {
var chartOptions = {
chartArea: {
top: "10%",
height: "80%"
}
};
if (chart.options.colors) {
chartOptions.colors = chart.options.colors;
}
var options = merge(merge(defaultOptions, chartOptions), chart.options.library || {});
var data = new google.visualization.DataTable();
data.addColumn("string", "");
data.addColumn("number", "Value");
data.addRows(chart.data);
chart.chart = new google.visualization.PieChart(chart.element);
resize(function () {
chart.chart.draw(data, options);
});
});
};
this.renderColumnChart = function (chart) {
waitForLoaded(function () {
var options = jsOptions(chart.data, chart.options);
var data = createDataTable(chart.data, "string");
chart.chart = new google.visualization.ColumnChart(chart.element);
resize(function () {
chart.chart.draw(data, options);
});
});
};
this.renderBarChart = function (chart) {
waitForLoaded(function () {
var chartOptions = {
hAxis: {
gridlines: {
color: "#ccc"
}
}
};
var options = jsOptionsFunc(defaultOptions, hideLegend, setBarMin, setBarMax, setStacked)(chart.data, chart.options, chartOptions);
var data = createDataTable(chart.data, "string");
chart.chart = new google.visualization.BarChart(chart.element);
resize(function () {
chart.chart.draw(data, options);
});
});
};
this.renderAreaChart = function (chart) {
waitForLoaded(function () {
var chartOptions = {
isStacked: true,
pointSize: 0,
areaOpacity: 0.5
};
var options = jsOptions(chart.data, chart.options, chartOptions);
var data = createDataTable(chart.data, chart.options.discrete ? "string" : "datetime");
chart.chart = new google.visualization.AreaChart(chart.element);
resize(function () {
chart.chart.draw(data, options);
});
});
};
this.renderGeoChart = function (chart) {
waitForLoaded(function () {
var chartOptions = {
legend: "none",
colorAxis: {
colors: chart.options.colors || ["#f6c7b6", "#ce502d"]
}
};
var options = merge(merge(defaultOptions, chartOptions), chart.options.library || {});
var data = new google.visualization.DataTable();
data.addColumn("string", "");
data.addColumn("number", "Value");
data.addRows(chart.data);
chart.chart = new google.visualization.GeoChart(chart.element);
resize(function () {
chart.chart.draw(data, options);
});
});
};
this.renderTimeline = function (chart) {
waitForLoaded("timeline", function () {
var chartOptions = {
legend: "none"
};
if (chart.options.colors) {
chartOptions.colorAxis.colors = chart.options.colors;
}
var options = merge(merge(defaultOptions, chartOptions), chart.options.library || {});
var data = new google.visualization.DataTable();
data.addColumn({type: "string", id: "Name"});
data.addColumn({type: "date", id: "Start"});
data.addColumn({type: "date", id: "End"});
data.addRows(chart.data);
chart.chart = new google.visualization.Timeline(chart.element);
resize(function () {
chart.chart.draw(data, options);
});
});
};
};
adapters.push(GoogleChartsAdapter);
}
// TODO add adapter option
// TODO remove chartType if cross-browser way
// to get the name of the chart class
function renderChart(chartType, chart) {
var i, adapter, fnName;
fnName = "render" + chartType;
for (i = 0; i < adapters.length; i++) {
adapter = adapters[i];
if (isFunction(adapter[fnName])) {
return adapter[fnName](chart);
}
}
throw new Error("No adapter found");
}
// process data
function processSeries(series, opts, time) {
var i, data, key;
// see if one series or multiple
if (!isArray(series) || typeof series[0] !== "object" || isArray(series[0])) {
series = [{name: "Value", data: series}];
opts.hideLegend = true;
} else {
opts.hideLegend = false;
}
if (opts.discrete) {
time = false;
}
function formatData(inputData, valueIsString) {
var j, r = [], data = toArr(inputData), value;
for (j = 0; j < data.length; j++) {
key = data[j][0];
key = time ? toDate(key) : toStr(key);
value = data[j][1];
if (valueIsString) {
value = toStr(value)
} else {
value = toFloat(value);
}
r.push([key, value]);
}
if (time) {
r.sort(sortByTime);
}
return r;
}
// right format
for (i = 0; i < series.length; i++) {
series[i].data = formatData(series[i].data);
if (series[i].tooltip) {
series[i].tooltip = formatData(series[i].tooltip, true);
}
}
return series;
}
function processSimple(data) {
var perfectData = toArr(data), i;
for (i = 0; i < perfectData.length; i++) {
perfectData[i] = [toStr(perfectData[i][0]), toFloat(perfectData[i][1])];
}
return perfectData;
}
function processTime(data)
{
var i;
for (i = 0; i < data.length; i++) {
data[i][1] = toDate(data[i][1]);
data[i][2] = toDate(data[i][2]);
}
return data;
}
function processLineData(chart) {
chart.data = processSeries(chart.data, chart.options, true);
renderChart("LineChart", chart);
}
function processColumnData(chart) {
chart.data = processSeries(chart.data, chart.options, false);
renderChart("ColumnChart", chart);
}
function processPieData(chart) {
chart.data = processSimple(chart.data);
renderChart("PieChart", chart);
}
function processBarData(chart) {
chart.data = processSeries(chart.data, chart.options, false);
renderChart("BarChart", chart);
}
function processAreaData(chart) {
chart.data = processSeries(chart.data, chart.options, true);
renderChart("AreaChart", chart);
}
function processGeoData(chart) {
chart.data = processSimple(chart.data);
renderChart("GeoChart", chart);
}
function processTimelineData(chart) {
chart.data = processTime(chart.data);
renderChart("Timeline", chart);
}
function setElement(chart, element, dataSource, opts, callback) {
if (typeof element === "string") {
element = document.getElementById(element);
}
chart.element = element;
chart.options = opts || {};
chart.dataSource = dataSource;
Chartkick.charts[element.id] = chart;
fetchDataSource(chart, callback);
}
// define classes
Chartkick = {
LineChart: function (element, dataSource, opts) {
setElement(this, element, dataSource, opts, processLineData);
},
PieChart: function (element, dataSource, opts) {
setElement(this, element, dataSource, opts, processPieData);
},
ColumnChart: function (element, dataSource, opts) {
setElement(this, element, dataSource, opts, processColumnData);
},
BarChart: function (element, dataSource, opts) {
setElement(this, element, dataSource, opts, processBarData);
},
AreaChart: function (element, dataSource, opts) {
setElement(this, element, dataSource, opts, processAreaData);
},
GeoChart: function (element, dataSource, opts) {
setElement(this, element, dataSource, opts, processGeoData);
},
Timeline: function (element, dataSource, opts) {
setElement(this, element, dataSource, opts, processTimelineData);
},
charts: {}
};
window.Chartkick = Chartkick;
}(window));