charts/dist/frappe-charts.esm.js
2018-01-02 12:34:45 +05:30

2624 lines
61 KiB
JavaScript

function $(expr, con) {
return typeof expr === "string"? (con || document).querySelector(expr) : expr || null;
}
$.create = (tag, o) => {
var element = document.createElement(tag);
for (var i in o) {
var val = o[i];
if (i === "inside") {
$(val).appendChild(element);
}
else if (i === "around") {
var ref = $(val);
ref.parentNode.insertBefore(element, ref);
element.appendChild(ref);
} else if (i === "styles") {
if(typeof val === "object") {
Object.keys(val).map(prop => {
element.style[prop] = val[prop];
});
}
} else if (i in element ) {
element[i] = val;
}
else {
element.setAttribute(i, val);
}
}
return element;
};
function getOffset(element) {
let rect = element.getBoundingClientRect();
return {
// https://stackoverflow.com/a/7436602/6495043
// rect.top varies with scroll, so we add whatever has been
// scrolled to it to get absolute distance from actual page top
top: rect.top + (document.documentElement.scrollTop || document.body.scrollTop),
left: rect.left + (document.documentElement.scrollLeft || document.body.scrollLeft)
};
}
function isElementInViewport(el) {
// Although straightforward: https://stackoverflow.com/a/7557433/6495043
var rect = el.getBoundingClientRect();
return (
rect.top >= 0 &&
rect.left >= 0 &&
rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) && /*or $(window).height() */
rect.right <= (window.innerWidth || document.documentElement.clientWidth) /*or $(window).width() */
);
}
function getElementContentWidth(element) {
var styles = window.getComputedStyle(element);
var padding = parseFloat(styles.paddingLeft) +
parseFloat(styles.paddingRight);
return element.clientWidth - padding;
}
class SvgTip {
constructor({
parent = null,
colors = []
}) {
this.parent = parent;
this.colors = colors;
this.title_name = '';
this.title_value = '';
this.list_values = [];
this.title_value_first = 0;
this.x = 0;
this.y = 0;
this.top = 0;
this.left = 0;
this.setup();
}
setup() {
this.make_tooltip();
}
refresh() {
this.fill();
this.calc_position();
// this.show_tip();
}
make_tooltip() {
this.container = $.create('div', {
inside: this.parent,
className: 'graph-svg-tip comparison',
innerHTML: `<span class="title"></span>
<ul class="data-point-list"></ul>
<div class="svg-pointer"></div>`
});
this.hide_tip();
this.title = this.container.querySelector('.title');
this.data_point_list = this.container.querySelector('.data-point-list');
this.parent.addEventListener('mouseleave', () => {
this.hide_tip();
});
}
fill() {
let title;
if(this.title_value_first) {
title = `<strong>${this.title_value}</strong>${this.title_name}`;
} else {
title = `${this.title_name}<strong>${this.title_value}</strong>`;
}
this.title.innerHTML = title;
this.data_point_list.innerHTML = '';
this.list_values.map((set, i) => {
const color = this.colors[i] || 'black';
let li = $.create('li', {
styles: {
'border-top': `3px solid ${color}`
},
innerHTML: `<strong style="display: block;">${ set.value === 0 || set.value ? set.value : '' }</strong>
${set.title ? set.title : '' }`
});
this.data_point_list.appendChild(li);
});
}
calc_position() {
let width = this.container.offsetWidth;
this.top = this.y - this.container.offsetHeight;
this.left = this.x - width/2;
let max_left = this.parent.offsetWidth - width;
let pointer = this.container.querySelector('.svg-pointer');
if(this.left < 0) {
pointer.style.left = `calc(50% - ${-1 * this.left}px)`;
this.left = 0;
} else if(this.left > max_left) {
let delta = this.left - max_left;
let pointer_offset = `calc(50% + ${delta}px)`;
pointer.style.left = pointer_offset;
this.left = max_left;
} else {
pointer.style.left = `50%`;
}
}
set_values(x, y, title_name = '', title_value = '', list_values = [], title_value_first = 0) {
this.title_name = title_name;
this.title_value = title_value;
this.list_values = list_values;
this.x = x;
this.y = y;
this.title_value_first = title_value_first;
this.refresh();
}
hide_tip() {
this.container.style.top = '0px';
this.container.style.left = '0px';
this.container.style.opacity = '0';
}
show_tip() {
this.container.style.top = this.top + 'px';
this.container.style.left = this.left + 'px';
this.container.style.opacity = '1';
}
}
/**
* Returns the value of a number upto 2 decimal places.
* @param {Number} d Any number
*/
function floatTwo(d) {
return parseFloat(d.toFixed(2));
}
/**
* Returns whether or not two given arrays are equal.
* @param {Array} arr1 First array
* @param {Array} arr2 Second array
*/
/**
* Shuffles array in place. ES6 version
* @param {Array} array An array containing the items.
*/
/**
* Fill an array with extra points
* @param {Array} array Array
* @param {Number} count number of filler elements
* @param {Object} element element to fill with
* @param {Boolean} start fill at start?
*/
function fillArray(array, count, element, start=false) {
if(!element) {
element = start ? array[0] : array[array.length - 1];
}
let fillerArray = new Array(Math.abs(count)).fill(element);
array = start ? fillerArray.concat(array) : array.concat(fillerArray);
return array;
}
/**
* Returns pixel width of string.
* @param {String} string
* @param {Number} charWidth Width of single char in pixels
*/
const MIN_BAR_PERCENT_HEIGHT = 0.01;
function getBarHeightAndYAttr(yTop, zeroLine, totalHeight) {
let height, y;
if (yTop <= zeroLine) {
height = zeroLine - yTop;
y = yTop;
// In case of invisible bars
if(height === 0) {
height = totalHeight * MIN_BAR_PERCENT_HEIGHT;
y -= height;
}
} else {
height = yTop - zeroLine;
y = zeroLine;
// In case of invisible bars
if(height === 0) {
height = totalHeight * MIN_BAR_PERCENT_HEIGHT;
}
}
return [height, y];
}
// let char_width = 8;
// let allowed_space = avgUnitWidth * 1.5;
// let allowed_letters = allowed_space / 8;
// return values.map((value, i) => {
// let space_taken = getStringWidth(value, char_width) + 2;
// if(space_taken > allowed_space) {
// if(is_series) {
// // Skip some axis lines if X axis is a series
// let skips = 1;
// while((space_taken/skips)*2 > allowed_space) {
// skips++;
// }
// if(i % skips !== 0) {
// return;
// }
// } else {
// value = value.slice(0, allowed_letters-3) + " ...";
// }
// }
const AXIS_TICK_LENGTH = 6;
const LABEL_MARGIN = 4;
const FONT_SIZE = 10;
const BASE_LINE_COLOR = '#dadada';
function $$1(expr, con) {
return typeof expr === "string"? (con || document).querySelector(expr) : expr || null;
}
function createSVG(tag, o) {
var element = document.createElementNS("http://www.w3.org/2000/svg", tag);
for (var i in o) {
var val = o[i];
if (i === "inside") {
$$1(val).appendChild(element);
}
else if (i === "around") {
var ref = $$1(val);
ref.parentNode.insertBefore(element, ref);
element.appendChild(ref);
} else if (i === "styles") {
if(typeof val === "object") {
Object.keys(val).map(prop => {
element.style[prop] = val[prop];
});
}
} else {
if(i === "className") { i = "class"; }
if(i === "innerHTML") {
element['textContent'] = val;
} else {
element.setAttribute(i, val);
}
}
}
return element;
}
function renderVerticalGradient(svgDefElem, gradientId) {
return createSVG('linearGradient', {
inside: svgDefElem,
id: gradientId,
x1: 0,
x2: 0,
y1: 0,
y2: 1
});
}
function setGradientStop(gradElem, offset, color, opacity) {
return createSVG('stop', {
'inside': gradElem,
'style': `stop-color: ${color}`,
'offset': offset,
'stop-opacity': opacity
});
}
function makeSVGContainer(parent, className, width, height) {
return createSVG('svg', {
className: className,
inside: parent,
width: width,
height: height
});
}
function makeSVGDefs(svgContainer) {
return createSVG('defs', {
inside: svgContainer,
});
}
function makeSVGGroup(parent, className, transform='') {
return createSVG('g', {
className: className,
inside: parent,
transform: transform
});
}
function makePath(pathStr, className='', stroke='none', fill='none') {
return createSVG('path', {
className: className,
d: pathStr,
styles: {
stroke: stroke,
fill: fill
}
});
}
function makeGradient(svgDefElem, color, lighter = false) {
let gradientId ='path-fill-gradient' + '-' + color;
let gradientDef = renderVerticalGradient(svgDefElem, gradientId);
let opacities = [1, 0.6, 0.2];
if(lighter) {
opacities = [0.4, 0.2, 0];
}
setGradientStop(gradientDef, "0%", color, opacities[0]);
setGradientStop(gradientDef, "50%", color, opacities[1]);
setGradientStop(gradientDef, "100%", color, opacities[2]);
return gradientId;
}
function makeHeatSquare(className, x, y, size, fill='none', data={}) {
let args = {
className: className,
x: x,
y: y,
width: size,
height: size,
fill: fill
};
Object.keys(data).map(key => {
args[key] = data[key];
});
return createSVG("rect", args);
}
function makeText(className, x, y, content) {
return createSVG('text', {
className: className,
x: x,
y: y,
dy: (FONT_SIZE / 2) + 'px',
'font-size': FONT_SIZE + 'px',
innerHTML: content
});
}
function makeVertLine(x, label, y1, y2, options={}) {
if(!options.stroke) options.stroke = BASE_LINE_COLOR;
let l = createSVG('line', {
className: 'line-vertical ' + options.className,
x1: 0,
x2: 0,
y1: y1,
y2: y2,
styles: {
stroke: options.stroke
}
});
let text = createSVG('text', {
x: 0,
y: y1 > y2 ? y1 + LABEL_MARGIN : y1 - LABEL_MARGIN - FONT_SIZE,
dy: FONT_SIZE + 'px',
'font-size': FONT_SIZE + 'px',
'text-anchor': 'middle',
innerHTML: label
});
let line = createSVG('g', {
transform: `translate(${ x }, 0)`
});
line.appendChild(l);
line.appendChild(text);
return line;
}
function makeHoriLine(y, label, x1, x2, options={}) {
if(!options.stroke) options.stroke = BASE_LINE_COLOR;
if(!options.lineType) options.lineType = '';
let className = 'line-horizontal ' + options.className +
(options.lineType === "dashed" ? "dashed": "");
let l = createSVG('line', {
className: className,
x1: x1,
x2: x2,
y1: 0,
y2: 0,
styles: {
stroke: options.stroke
}
});
let text = createSVG('text', {
x: x1 < x2 ? x1 - LABEL_MARGIN : x1 + LABEL_MARGIN,
y: 0,
dy: (FONT_SIZE / 2 - 2) + 'px',
'font-size': FONT_SIZE + 'px',
'text-anchor': x1 < x2 ? 'end' : 'start',
innerHTML: label+""
});
let line = createSVG('g', {
transform: `translate(0, ${ y })`,
'stroke-opacity': 1
});
if(text === 0 || text === '0') {
line.style.stroke = "rgba(27, 31, 35, 0.6)";
}
line.appendChild(l);
line.appendChild(text);
return line;
}
class AxisChartRenderer {
constructor(state) {
this.refreshState(state);
}
refreshState(state) {
this.totalHeight = state.totalHeight;
this.totalWidth = state.totalWidth;
this.zeroLine = state.zeroLine;
this.unitWidth = state.unitWidth;
this.xAxisMode = state.xAxisMode;
this.yAxisMode = state.yAxisMode;
}
setZeroline(zeroLine) {
this.zeroLine = zeroLine;
}
bar(x, yTop, args, color, index, datasetIndex, noOfDatasets, prevX, prevY) {
let totalWidth = this.unitWidth - args.spaceWidth;
let startX = x - totalWidth/2;
// temp commented
// let width = totalWidth / noOfDatasets;
// let currentX = startX + width * datasetIndex;
// temp
let width = totalWidth;
let currentX = startX;
let [height, y] = getBarHeightAndYAttr(yTop, this.zeroLine, this.totalHeight);
return createSVG('rect', {
className: `bar mini`,
style: `fill: ${color}`,
'data-point-index': index,
x: currentX,
y: y,
width: width,
height: height
});
}
dot(x, y, args, color, index) {
return createSVG('circle', {
style: `fill: ${color}`,
'data-point-index': index,
cx: x,
cy: y,
r: args.radius
});
}
xLine(x, label, options={}) {
if(!options.pos) options.pos = 'bottom';
if(!options.offset) options.offset = 0;
if(!options.mode) options.mode = this.xAxisMode;
if(!options.stroke) options.stroke = BASE_LINE_COLOR;
if(!options.className) options.className = '';
// Draw X axis line in span/tick mode with optional label
// y2(span)
// |
// |
// x line |
// |
// |
// ---------------------+-- y2(tick)
// |
// y1
let y1 = this.totalHeight + AXIS_TICK_LENGTH;
let y2 = options.mode === 'span' ? -1 * AXIS_TICK_LENGTH : this.totalHeight;
if(options.mode === 'tick' && options.pos === 'top') {
// top axis ticks
y1 = -1 * AXIS_TICK_LENGTH;
y2 = 0;
}
return makeVertLine(x, label, y1, y2, {
stroke: options.stroke,
className: options.className
});
}
yLine(y, label, options={}) {
if(!options.pos) options.pos = 'left';
if(!options.offset) options.offset = 0;
if(!options.mode) options.mode = this.yAxisMode;
if(!options.stroke) options.stroke = BASE_LINE_COLOR;
if(!options.className) options.className = '';
let x1 = -1 * AXIS_TICK_LENGTH;
let x2 = options.mode === 'span' ? this.totalWidth + AXIS_TICK_LENGTH : 0;
if(options.mode === 'tick' && options.pos === 'right') {
x1 = this.totalWidth + AXIS_TICK_LENGTH;
x2 = this.totalWidth;
}
x1 += options.offset;
x2 += options.offset;
return makeHoriLine(y, label, x1, x2, {
stroke: options.stroke,
className: options.className
});
}
xMarker() {}
yMarker() {}
xRegion() {}
yRegion() {}
}
const PRESET_COLOR_MAP = {
'light-blue': '#7cd6fd',
'blue': '#5e64ff',
'violet': '#743ee2',
'red': '#ff5858',
'orange': '#ffa00a',
'yellow': '#feef72',
'green': '#28a745',
'light-green': '#98d85b',
'purple': '#b554ff',
'magenta': '#ffa3ef',
'black': '#36114C',
'grey': '#bdd3e6',
'light-grey': '#f0f4f7',
'dark-grey': '#b8c2cc'
};
const DEFAULT_COLORS = ['light-blue', 'blue', 'violet', 'red', 'orange',
'yellow', 'green', 'light-green', 'purple', 'magenta'];
function limitColor(r){
if (r > 255) return 255;
else if (r < 0) return 0;
return r;
}
function lightenDarkenColor(color, amt) {
let col = getColor(color);
let usePound = false;
if (col[0] == "#") {
col = col.slice(1);
usePound = true;
}
let num = parseInt(col,16);
let r = limitColor((num >> 16) + amt);
let b = limitColor(((num >> 8) & 0x00FF) + amt);
let g = limitColor((num & 0x0000FF) + amt);
return (usePound?"#":"") + (g | (b << 8) | (r << 16)).toString(16);
}
function isValidColor(string) {
// https://stackoverflow.com/a/8027444/6495043
return /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(string);
}
const getColor = (color) => {
return PRESET_COLOR_MAP[color] || color;
};
const ALL_CHART_TYPES = ['line', 'scatter', 'bar', 'percentage', 'heatmap', 'pie'];
const COMPATIBLE_CHARTS = {
bar: ['line', 'scatter', 'percentage', 'pie'],
line: ['scatter', 'bar', 'percentage', 'pie'],
pie: ['line', 'scatter', 'percentage', 'bar'],
scatter: ['line', 'bar', 'percentage', 'pie'],
percentage: ['bar', 'line', 'scatter', 'pie'],
heatmap: []
};
// Needs structure as per only labels/datasets
const COLOR_COMPATIBLE_CHARTS = {
bar: ['line', 'scatter'],
line: ['scatter', 'bar'],
pie: ['percentage'],
scatter: ['line', 'bar'],
percentage: ['pie'],
heatmap: []
};
function getDifferentChart(type, current_type, args) {
if(type === current_type) return;
if(!ALL_CHART_TYPES.includes(type)) {
console.error(`'${type}' is not a valid chart type.`);
}
if(!COMPATIBLE_CHARTS[current_type].includes(type)) {
console.error(`'${current_type}' chart cannot be converted to a '${type}' chart.`);
}
// whether the new chart can use the existing colors
const useColor = COLOR_COMPATIBLE_CHARTS[current_type].includes(type);
// Okay, this is anticlimactic
// this function will need to actually be 'changeChartType(type)'
// that will update only the required elements, but for now ...
return new Chart({
parent: args.parent,
title: args.title,
data: args.data,
type: type,
height: args.height,
colors: useColor ? args.colors : undefined
});
}
class BaseChart {
constructor({
height = 240,
title = '',
subtitle = '',
colors = [],
isNavigable = 0,
showLegend = 1,
type = '',
parent,
data
}) {
this.rawChartArgs = arguments[0];
this.parent = typeof parent === 'string' ? document.querySelector(parent) : parent;
this.title = title;
this.subtitle = subtitle;
this.argHeight = height;
this.isNavigable = isNavigable;
if(this.isNavigable) {
this.currentIndex = 0;
}
this.configure(arguments[0]);
}
configure(args) {
// Make a this.config, that has stuff like showTooltip,
// showLegend, which then all functions will check
this.setColors();
// constants
this.config = {
showTooltip: 1, // calculate
showLegend: 1,
isNavigable: 0,
// animate: 1
animate: 0
};
this.state = {
colors: this.colors
};
}
setColors() {
let args = this.rawChartArgs;
// Needs structure as per only labels/datasets, from config
const list = args.type === 'percentage' || args.type === 'pie'
? args.data.labels
: args.data.datasets;
if(!args.colors || (list && args.colors.length < list.length)) {
this.colors = DEFAULT_COLORS;
} else {
this.colors = args.colors;
}
this.colors = this.colors.map(color => getColor(color));
}
setMargins() {
// TODO: think for all
let height = this.argHeight;
this.baseHeight = height;
this.height = height - 40; // change
this.translateY = 20;
this.setHorizontalMargin();
}
setHorizontalMargin() {
this.translateXLeft = 60;
this.translateXRight = 40;
}
validate(){
if(!this.parent) {
console.error("No parent element to render on was provided.");
return false;
}
if(!this.parseData()) {
return false;
}
return true;
}
parseData() {
let data = this.rawChartArgs.data;
let valid = this.checkData(data);
if(!valid) return false;
if(!this.config.animate) {
this.data = data;
} else {
[this.data, this.firstUpdateData] =
this.getFirstUpdateData(data);
}
return true;
}
checkData() {}
getFirstUpdateData() {}
setup() {
if(this.validate()) {
this._setup();
}
}
_setup() {
this.bindWindowEvents();
this.setupConstants();
this.prepareData();
this.setupComponents();
this.setMargins();
this.makeContainer();
this.makeTooltip(); // without binding
this.draw(true);
}
bindWindowEvents() {
window.addEventListener('resize orientationchange', () => this.draw());
}
setupConstants() {}
setupComponents() {
// Components config
this.components = [];
}
makeContainer() {
this.container = $.create('div', {
className: 'chart-container',
innerHTML: `<h6 class="title">${this.title}</h6>
<h6 class="sub-title uppercase">${this.subtitle}</h6>
<div class="frappe-chart graphics"></div>
<div class="graph-stats-container"></div>`
});
// Chart needs a dedicated parent element
this.parent.innerHTML = '';
this.parent.appendChild(this.container);
this.chartWrapper = this.container.querySelector('.frappe-chart');
this.statsWrapper = this.container.querySelector('.graph-stats-container');
}
makeTooltip() {
this.tip = new SvgTip({
parent: this.chartWrapper,
colors: this.colors
});
this.bindTooltip();
}
bindTooltip() {}
draw(init=false) {
// difference from update(): draw the whole object due to groudbreaking event (init, resize, etc.)
// (draw everything, layers, groups, units)
this.calcWidth();
// refresh conponent with chart
this.refresh();
this.makeChartArea();
this.setComponentParent();
this.makeComponentLayers();
this.renderLegend();
this.setupNavigation(init);
// first time plain render, so no rerender
this.renderComponents();
if(this.config.animate) this.update(this.firstUpdateData);
}
update() {
// difference from draw(): yes you do rerender everything here as well,
// but not things like the chart itself or layers, mosty only at component level
// HERE IS WHERE THE ACTUAL STATE CHANGES, and old one matters, not in draw
this.refresh();
this.reRender();
}
calcWidth() {
let outerAnnotationsWidth = 0;
// let charWidth = 8;
// this.specificValues.map(val => {
// let strWidth = getStringWidth((val.title + ""), charWidth);
// if(strWidth > outerAnnotationsWidth) {
// outerAnnotationsWidth = strWidth - 40;
// }
// });
this.baseWidth = getElementContentWidth(this.parent) - outerAnnotationsWidth;
this.width = this.baseWidth - (this.translateXLeft + this.translateXRight);
}
refresh() { //?? refresh?
this.oldState = this.state ? Object.assign({}, this.state) : {};
this.intermedState = {};
this.prepareData();
this.reCalc();
this.refreshRenderer();
}
makeChartArea() {
this.svg = makeSVGContainer(
this.chartWrapper,
'chart',
this.baseWidth,
this.baseHeight
);
this.svg_defs = makeSVGDefs(this.svg);
this.drawArea = makeSVGGroup(
this.svg,
this.type + '-chart',
`translate(${this.translateXLeft}, ${this.translateY})`
);
}
prepareData() {}
reCalc() {}
// Will update values(state)
// Will recalc specific parts depending on the update
refreshRenderer() {}
reRender(animate=true) {
if(!animate) {
this.renderComponents();
return;
}
this.intermedState = this.calcIntermedState();
this.animateComponents();
setTimeout(() => {
this.renderComponents();
}, 400);
// TODO: should be max anim duration required
// (opt, should not redraw if still in animate?)
}
calcIntermedState() {
this.intermedState = {};
}
// convenient component array abstractions
setComponentParent() { this.components.forEach(c => c.setupParent(this.drawArea)); };
makeComponentLayers() { this.components.forEach(c => c.makeLayer()); }
renderComponents() { this.components.forEach(c => c.render()); }
animateComponents() { this.components.forEach(c => c.animate()); }
renderLegend() {}
setupNavigation(init=false) {
if(this.isNavigable) return;
this.makeOverlay();
if(init) {
this.bindOverlay();
document.addEventListener('keydown', (e) => {
if(isElementInViewport(this.chartWrapper)) {
e = e || window.event;
if (e.keyCode == '37') {
this.onLeftArrow();
} else if (e.keyCode == '39') {
this.onRightArrow();
} else if (e.keyCode == '38') {
this.onUpArrow();
} else if (e.keyCode == '40') {
this.onDownArrow();
} else if (e.keyCode == '13') {
this.onEnterKey();
}
}
});
}
}
makeOverlay() {}
bindOverlay() {}
bind_units() {}
onLeftArrow() {}
onRightArrow() {}
onUpArrow() {}
onDownArrow() {}
onEnterKey() {}
getDataPoint() {}
updateCurrentDataPoint() {}
getDifferentChart(type) {
return getDifferentChart(type, this.type, this.rawChartArgs);
}
}
const Y_AXIS_MARGIN = 60;
class ChartComponent {
constructor({
layerClass = '',
layerTransform = '',
make,
animate
}) {
this.layerClass = layerClass;
this.layerTransform = layerTransform;
this.make = make;
this.animate = animate;
this.layer = undefined;
this.store = [];
}
refresh(args) {}
render() {
this.store = this.make();
this.layer.textContent = '';
this.store.forEach(element => {
this.layer.appendChild(element);
});
}
setupParent(parent) {
this.parent = parent;
}
makeLayer() {
this.layer = makeSVGGroup(this.parent, this.layerClass, this.layerTransform);
}
}
const REPLACE_ALL_NEW_DUR = 250;
// export function animateXLines(animator, lines, oldX, newX) {
// // this.xAxisLines.map((xLine, i) => {
// return lines.map((xLine, i) => {
// return animator.verticalLine(xLine, newX[i], oldX[i]);
// });
// }
// export function animateYLines(animator, lines, oldY, newY) {
// // this.yAxisLines.map((yLine, i) => {
// lines.map((yLine, i) => {
// return animator.horizontalLine(yLine, newY[i], oldY[i]);
// });
// }
// Leveraging SMIL Animations
const EASING = {
ease: "0.25 0.1 0.25 1",
linear: "0 0 1 1",
// easein: "0.42 0 1 1",
easein: "0.1 0.8 0.2 1",
easeout: "0 0 0.58 1",
easeinout: "0.42 0 0.58 1"
};
function animateSVGElement(element, props, dur, easingType="linear", type=undefined, oldValues={}) {
let animElement = element.cloneNode(true);
let newElement = element.cloneNode(true);
for(var attributeName in props) {
let animateElement;
if(attributeName === 'transform') {
animateElement = document.createElementNS("http://www.w3.org/2000/svg", "animateTransform");
} else {
animateElement = document.createElementNS("http://www.w3.org/2000/svg", "animate");
}
let currentValue = oldValues[attributeName] || element.getAttribute(attributeName);
let value = props[attributeName];
let animAttr = {
attributeName: attributeName,
from: currentValue,
to: value,
begin: "0s",
dur: dur/1000 + "s",
values: currentValue + ";" + value,
keySplines: EASING[easingType],
keyTimes: "0;1",
calcMode: "spline",
fill: 'freeze'
};
if(type) {
animAttr["type"] = type;
}
for (var i in animAttr) {
animateElement.setAttribute(i, animAttr[i]);
}
animElement.appendChild(animateElement);
if(type) {
newElement.setAttribute(attributeName, `translate(${value})`);
} else {
newElement.setAttribute(attributeName, value);
}
}
return [animElement, newElement];
}
function transform(element, style) { // eslint-disable-line no-unused-vars
element.style.transform = style;
element.style.webkitTransform = style;
element.style.msTransform = style;
element.style.mozTransform = style;
element.style.oTransform = style;
}
function animateSVG(svgContainer, elements) {
let newElements = [];
let animElements = [];
elements.map(element => {
let obj = element[0];
let parent = obj.unit.parentNode;
let animElement, newElement;
element[0] = obj.unit;
[animElement, newElement] = animateSVGElement(...element);
newElements.push(newElement);
animElements.push([animElement, parent]);
parent.replaceChild(animElement, obj.unit);
if(obj.array) {
obj.array[obj.index] = newElement;
} else {
obj.object[obj.key] = newElement;
}
});
let animSvg = svgContainer.cloneNode(true);
animElements.map((animElement, i) => {
animElement[1].replaceChild(newElements[i], animElement[0]);
elements[i][0] = newElements[i];
});
return animSvg;
}
function runSMILAnimation(parent, svgElement, elementsToAnimate) {
if(elementsToAnimate.length === 0) return;
let animSvgElement = animateSVG(svgElement, elementsToAnimate);
if(svgElement.parentNode == parent) {
parent.removeChild(svgElement);
parent.appendChild(animSvgElement);
}
// Replace the new svgElement (data has already been replaced)
setTimeout(() => {
if(animSvgElement.parentNode == parent) {
parent.removeChild(animSvgElement);
parent.appendChild(svgElement);
}
}, REPLACE_ALL_NEW_DUR);
}
function normalize(x) {
// Calculates mantissa and exponent of a number
// Returns normalized number and exponent
// https://stackoverflow.com/q/9383593/6495043
if(x===0) {
return [0, 0];
}
if(isNaN(x)) {
return {mantissa: -6755399441055744, exponent: 972};
}
var sig = x > 0 ? 1 : -1;
if(!isFinite(x)) {
return {mantissa: sig * 4503599627370496, exponent: 972};
}
x = Math.abs(x);
var exp = Math.floor(Math.log10(x));
var man = x/Math.pow(10, exp);
return [sig * man, exp];
}
function getRangeIntervals(max, min=0) {
let upperBound = Math.ceil(max);
let lowerBound = Math.floor(min);
let range = upperBound - lowerBound;
let noOfParts = range;
let partSize = 1;
// To avoid too many partitions
if(range > 5) {
if(range % 2 !== 0) {
upperBound++;
// Recalc range
range = upperBound - lowerBound;
}
noOfParts = range/2;
partSize = 2;
}
// Special case: 1 and 2
if(range <= 2) {
noOfParts = 4;
partSize = range/noOfParts;
}
// Special case: 0
if(range === 0) {
noOfParts = 5;
partSize = 1;
}
let intervals = [];
for(var i = 0; i <= noOfParts; i++){
intervals.push(lowerBound + partSize * i);
}
return intervals;
}
function getIntervals(maxValue, minValue=0) {
let [normalMaxValue, exponent] = normalize(maxValue);
let normalMinValue = minValue ? minValue/Math.pow(10, exponent): 0;
// Allow only 7 significant digits
normalMaxValue = normalMaxValue.toFixed(6);
let intervals = getRangeIntervals(normalMaxValue, normalMinValue);
intervals = intervals.map(value => value * Math.pow(10, exponent));
return intervals;
}
function calcIntervals(values, withMinimum=false) {
//*** Where the magic happens ***
// Calculates best-fit y intervals from given values
// and returns the interval array
let maxValue = Math.max(...values);
let minValue = Math.min(...values);
// Exponent to be used for pretty print
let exponent = 0, intervals = []; // eslint-disable-line no-unused-vars
function getPositiveFirstIntervals(maxValue, absMinValue) {
let intervals = getIntervals(maxValue);
let intervalSize = intervals[1] - intervals[0];
// Then unshift the negative values
let value = 0;
for(var i = 1; value < absMinValue; i++) {
value += intervalSize;
intervals.unshift((-1) * value);
}
return intervals;
}
// CASE I: Both non-negative
if(maxValue >= 0 && minValue >= 0) {
exponent = normalize(maxValue)[1];
if(!withMinimum) {
intervals = getIntervals(maxValue);
} else {
intervals = getIntervals(maxValue, minValue);
}
}
// CASE II: Only minValue negative
else if(maxValue > 0 && minValue < 0) {
// `withMinimum` irrelevant in this case,
// We'll be handling both sides of zero separately
// (both starting from zero)
// Because ceil() and floor() behave differently
// in those two regions
let absMinValue = Math.abs(minValue);
if(maxValue >= absMinValue) {
exponent = normalize(maxValue)[1];
intervals = getPositiveFirstIntervals(maxValue, absMinValue);
} else {
// Mirror: maxValue => absMinValue, then change sign
exponent = normalize(absMinValue)[1];
let posIntervals = getPositiveFirstIntervals(absMinValue, maxValue);
intervals = posIntervals.map(d => d * (-1));
}
}
// CASE III: Both non-positive
else if(maxValue <= 0 && minValue <= 0) {
// Mirrored Case I:
// Work with positives, then reverse the sign and array
let pseudoMaxValue = Math.abs(minValue);
let pseudoMinValue = Math.abs(maxValue);
exponent = normalize(pseudoMaxValue)[1];
if(!withMinimum) {
intervals = getIntervals(pseudoMaxValue);
} else {
intervals = getIntervals(pseudoMaxValue, pseudoMinValue);
}
intervals = intervals.reverse().map(d => d * (-1));
}
return intervals;
}
function getZeroIndex(yPts) {
let zeroIndex;
let interval = getIntervalSize(yPts);
if(yPts.indexOf(0) >= 0) {
// the range has a given zero
// zero-line on the chart
zeroIndex = yPts.indexOf(0);
} else if(yPts[0] > 0) {
// Minimum value is positive
// zero-line is off the chart: below
let min = yPts[0];
zeroIndex = (-1) * min / interval;
} else {
// Maximum value is negative
// zero-line is off the chart: above
let max = yPts[yPts.length - 1];
zeroIndex = (-1) * max / interval + (yPts.length - 1);
}
return zeroIndex;
}
function getIntervalSize(orderedArray) {
return orderedArray[1] - orderedArray[0];
}
function getValueRange(orderedArray) {
return orderedArray[orderedArray.length-1] - orderedArray[0];
}
function calcDistribution(values, distributionSize) {
// Assume non-negative values,
// implying distribution minimum at zero
let dataMaxValue = Math.max(...values);
let distributionStep = 1 / (distributionSize - 1);
let distribution = [];
for(var i = 0; i < distributionSize; i++) {
let checkpoint = dataMaxValue * (distributionStep * i);
distribution.push(checkpoint);
}
return distribution;
}
function getMaxCheckpoint(value, distribution) {
return distribution.filter(d => d < value).length;
}
class AxisChart extends BaseChart {
constructor(args) {
super(args);
this.is_series = args.is_series;
this.format_tooltip_y = args.format_tooltip_y;
this.format_tooltip_x = args.format_tooltip_x;
this.zeroLine = this.height;
}
setHorizontalMargin() {
this.translateXLeft = Y_AXIS_MARGIN;
this.translateXRight = Y_AXIS_MARGIN;
}
checkData(data) {
return true;
}
getFirstUpdateData(data) {
//
}
prepareData() {
let s = this.state;
s.xAxisLabels = this.data.labels || [];
s.xAxisPositions = [];
s.datasetLength = s.xAxisLabels.length;
let zeroArray = new Array(s.datasetLength).fill(0);
s.datasets = this.data.datasets; // whole dataset info too
if(!this.data.datasets) {
// default
s.datasets = [{
values: zeroArray // Proof that state version will be seen instead of this.data
}];
}
s.datasets.map((d, i)=> {
let vals = d.values;
if(!vals) {
vals = zeroArray;
} else {
// Check for non values
vals = vals.map(val => (!isNaN(val) ? val : 0));
// Trim or extend
if(vals.length > s.datasetLength) {
vals = vals.slice(0, s.datasetLength);
} else {
vals = fillArray(vals, s.datasetLength - vals.length, 0);
}
}
d.index = i;
});
s.noOfDatasets = s.datasets.length;
// s.yAxis = [];
this.prepareYAxis();
}
prepareYAxis() {
this.state.yAxis = {
labels: [],
positions: []
};
}
reCalc() {
let s = this.state;
// X
s.xAxisLabels = this.data.labels;
this.calcXPositions();
// Y
s.datasetsLabels = this.data.datasets.map(d => d.name);
this.setYAxis();
this.calcYUnits();
this.calcYMaximums();
// should be state
this.configUnits();
}
setYAxis() {
this.calcYAxisParameters(this.state.yAxis, this.getAllYValues(), this.type === 'line');
this.state.zeroLine = this.state.yAxis.zeroLine;
}
calcXPositions() {
let s = this.state;
this.setUnitWidthAndXOffset();
s.xAxisPositions = s.xAxisLabels.map((d, i) =>
floatTwo(s.xOffset + i * s.unitWidth));
s.xUnitPositions = new Array(s.noOfDatasets).fill(s.xAxisPositions);
}
calcYAxisParameters(yAxis, dataValues, withMinimum = 'false') {
yAxis.labels = calcIntervals(dataValues, withMinimum);
const yPts = yAxis.labels;
yAxis.scaleMultiplier = this.height / getValueRange(yPts);
const intervalHeight = getIntervalSize(yPts) * yAxis.scaleMultiplier;
yAxis.zeroLine = this.height - (getZeroIndex(yPts) * intervalHeight);
yAxis.positions = yPts.map(d => yAxis.zeroLine - d * yAxis.scaleMultiplier);
}
calcYUnits() {
let s = this.state;
s.datasets.map(d => {
d.positions = d.values.map(val => floatTwo(s.yAxis.zeroLine - val * s.yAxis.scaleMultiplier));
});
}
calcYMaximums() {
let s = this.state;
s.yUnitMinimums = new Array(s.datasetLength).fill(9999);
s.datasets.map((d, i) => {
d.positions.map((pos, j) => {
if(pos < s.yUnitMinimums[j]) {
s.yUnitMinimums[j] = pos;
}
});
});
// Tooltip refresh should not be needed?
// this.chartWrapper.removeChild(this.tip.container);
// this.make_tooltip();
}
configUnits() {}
setUnitWidthAndXOffset() {
this.state.unitWidth = this.width/(this.state.datasetLength);
this.state.xOffset = this.state.unitWidth/2;
}
getAllYValues() {
// TODO: yMarkers, regions, sums, every Y value ever
return [].concat(...this.state.datasets.map(d => d.values));
}
calcIntermedState() {
//
}
setupValues() {}
setupComponents() {
// TODO: rebind new units
// if(this.isNavigable) {
// this.bind_units(units_array);
// }
this.yMarkerLines = {};
this.xMarkerLines = {};
// Marker Regions
this.components = [
// temp
// this.yAxesAux,
...this.getYAxesComponents(),
this.getXAxisComponents(),
// this.yMarkerLines,
// this.xMarkerLines,
...this.getPathComponents(),
...this.getDataUnitsComponents(this.config),
];
}
getYAxesComponents() {
return [new ChartComponent({
layerClass: 'y axis',
make: () => {
let s = this.state;
return s.yAxis.positions.map((position, i) =>
this.renderer.yLine(position, s.yAxis.labels[i], {pos:'right'})
);
},
animate: () => {}
})];
}
getXAxisComponents() {
return new ChartComponent({
layerClass: 'x axis',
make: () => {
let s = this.state;
return s.xAxisPositions.map((position, i) =>
this.renderer.xLine(position, s.xAxisLabels[i], {pos:'top'})
);
},
// animate: (animator, lines, oldX, newX) => {
// lines.map((xLine, i) => {
// elements_to_animate.push(animator.verticalLine(
// xLine, newX[i], oldX[i]
// ));
// });
// }
});
}
getDataUnitsComponents() {
return this.state.datasets.map((d, index) => {
return new ChartComponent({
layerClass: 'dataset-units dataset-' + index,
make: () => {
let d = this.state.datasets[index];
let unitType = this.unitArgs;
return d.positions.map((y, j) => {
return this.renderer[unitType.type](
this.state.xAxisPositions[j],
y,
unitType.args,
this.colors[index],
j,
index,
this.state.datasetLength
);
});
},
animate: () => {}
});
});
}
getPathComponents() {
return [];
}
refreshRenderer() {
// These args are basically the current state of the chart,
// with constant and alive params mixed
let state = {
totalHeight: this.height,
totalWidth: this.width,
xAxisMode: this.config.xAxisMode,
yAxisMode: this.config.yAxisMode,
zeroLine: this.state.zeroLine,
unitWidth: this.state.unitWidth,
};
if(!this.renderer) {
this.renderer = new AxisChartRenderer(state);
} else {
this.renderer.refreshState(state);
}
}
}
class BarChart extends AxisChart {
constructor(args) {
super(args);
this.type = 'bar';
this.setup();
}
configure(args) {
super.configure(args);
this.config.xAxisMode = args.xAxisMode || 'tick';
this.config.yAxisMode = args.yAxisMode || 'span';
}
// setUnitWidthAndXOffset() {
// this.state.unitWidth = this.width/(this.state.datasetLength);
// this.state.xOffset = this.state.unitWidth/2;
// }
configUnits() {
this.unitArgs = {
type: 'bar',
args: {
spaceWidth: this.state.unitWidth/2,
}
};
}
// makeOverlay() {
// // Just make one out of the first element
// let index = this.xAxisLabels.length - 1;
// let unit = this.y[0].svg_units[index];
// this.updateCurrentDataPoint(index);
// if(this.overlay) {
// this.overlay.parentNode.removeChild(this.overlay);
// }
// this.overlay = unit.cloneNode();
// this.overlay.style.fill = '#000000';
// this.overlay.style.opacity = '0.4';
// this.drawArea.appendChild(this.overlay);
// }
// bindOverlay() {
// // on event, update overlay
// this.parent.addEventListener('data-select', (e) => {
// this.update_overlay(e.svg_unit);
// });
// }
// bind_units(units_array) {
// units_array.map(unit => {
// unit.addEventListener('click', () => {
// let index = unit.getAttribute('data-point-index');
// this.updateCurrentDataPoint(index);
// });
// });
// }
// update_overlay(unit) {
// let attributes = [];
// Object.keys(unit.attributes).map(index => {
// attributes.push(unit.attributes[index]);
// });
// attributes.filter(attr => attr.specified).map(attr => {
// this.overlay.setAttribute(attr.name, attr.nodeValue);
// });
// this.overlay.style.fill = '#000000';
// this.overlay.style.opacity = '0.4';
// }
// onLeftArrow() {
// this.updateCurrentDataPoint(this.currentIndex - 1);
// }
// onRightArrow() {
// this.updateCurrentDataPoint(this.currentIndex + 1);
// }
}
class LineChart extends AxisChart {
constructor(args) {
super(args);
this.type = 'line';
if(Object.getPrototypeOf(this) !== LineChart.prototype) {
return;
}
this.setup();
}
configure(args) {
super.configure(args);
this.config.xAxisMode = args.xAxisMode || 'span';
this.config.yAxisMode = args.yAxisMode || 'span';
this.config.dotRadius = args.dotRadius || 4;
this.config.heatline = args.heatline || 0;
this.config.regionFill = args.regionFill || 0;
this.config.showDots = args.showDots || 1;
}
configUnits() {
this.unitArgs = {
type: 'dot',
args: { radius: this.config.dotRadius }
};
}
// temp commented
setUnitWidthAndXOffset() {
this.state.unitWidth = this.width/(this.state.datasetLength - 1);
this.state.xOffset = 0;
}
getDataUnitsComponents(config) {
if(!config.showDots) {
return [];
} else {
return super.getDataUnitsComponents();
}
}
getPathComponents() {
return this.state.datasets.map((d, index) => {
return new ChartComponent({
layerClass: 'path dataset-path',
make: () => {
let d = this.state.datasets[index];
let color = this.colors[index];
let pointsList = d.positions.map((y, i) => (this.state.xAxisPositions[i] + ',' + y));
let pointsStr = pointsList.join("L");
let path = makePath("M"+pointsStr, 'line-graph-path', color);
// HeatLine
if(this.config.heatline) {
let gradient_id = makeGradient(this.svg_defs, color);
path.style.stroke = `url(#${gradient_id})`;
}
let components = [path];
// Region
if(this.config.regionFill) {
let gradient_id_region = makeGradient(this.svg_defs, color, true);
let zeroLine = this.state.yAxis.zeroLine;
let pathStr = "M" + `0,${zeroLine}L` + pointsStr + `L${this.width},${zeroLine}`;
components.push(makePath(pathStr, `region-fill`, 'none', `url(#${gradient_id_region})`));
}
return components;
},
animate: () => {}
});
});
}
}
class ScatterChart extends LineChart {
constructor(args) {
super(args);
this.type = 'scatter';
if(!args.dotRadius) {
this.dotRadius = 8;
} else {
this.dotRadius = args.dotRadius;
}
this.setup();
}
setup_values() {
super.setup_values();
this.unit_args = {
type: 'dot',
args: { radius: this.dotRadius }
};
}
make_paths() {}
make_path() {}
}
class MultiAxisChart extends AxisChart {
constructor(args) {
super(args);
this.type = 'multiaxis';
this.unitType = args.unitType || 'line';
this.setup();
}
setHorizontalMargin() {
let noOfLeftAxes = this.data.datasets.filter(d => d.axisPosition === 'left').length;
this.translateXLeft = (noOfLeftAxes) * Y_AXIS_MARGIN || Y_AXIS_MARGIN;
this.translateXRight = (this.data.datasets.length - noOfLeftAxes) * Y_AXIS_MARGIN || Y_AXIS_MARGIN;
}
prepareYAxis() {
let sets = this.state.datasets;
// let axesLeft = sets.filter(d => d.axisPosition === 'left');
// let axesRight = sets.filter(d => d.axisPosition === 'right');
// let axesNone = sets.filter(d => !d.axisPosition ||
// !['left', 'right'].includes(d.axisPosition));
let leftCount = 0, rightCount = 0;
sets.forEach((d, i) => {
d.yAxis = {
position: d.axisPosition,
index: d.axisPosition === 'left' ? leftCount++ : rightCount++
};
});
}
configure(args) {
super.configure(args);
this.config.xAxisMode = args.xAxisMode || 'tick';
this.config.yAxisMode = args.yAxisMode || 'span';
}
// setUnitWidthAndXOffset() {
// this.state.unitWidth = this.width/(this.state.datasetLength);
// this.state.xOffset = this.state.unitWidth/2;
// }
configUnits() {
this.unitArgs = {
type: 'bar',
args: {
spaceWidth: this.state.unitWidth/2,
}
};
}
setYAxis() {
this.state.datasets.map(d => {
this.calcYAxisParameters(d.yAxis, d.values, this.unitType === 'line');
});
}
calcYUnits() {
this.state.datasets.map(d => {
d.positions = d.values.map(val => floatTwo(d.yAxis.zeroLine - val * d.yAxis.scaleMultiplier));
});
}
getYAxesComponents() {
return this.state.datasets.map((e, i) => {
return new ChartComponent({
layerClass: 'y axis y-axis-' + i,
make: () => {
let yAxis = this.state.datasets[i].yAxis;
this.renderer.setZeroline(yAxis.zeroline);
let options = {
pos: yAxis.position,
mode: 'tick',
offset: yAxis.index * Y_AXIS_MARGIN,
stroke: this.colors[i]
};
let yAxisLines = yAxis.positions.map((position, j) =>
this.renderer.yLine(position, yAxis.labels[j], options)
);
let guidePos = yAxis.position === 'left'
? -1 * yAxis.index * Y_AXIS_MARGIN
: this.width + yAxis.index * Y_AXIS_MARGIN;
yAxisLines.push(this.renderer.xLine(guidePos, '', {
pos:'top',
mode: 'span',
stroke: this.colors[i],
className: 'y-axis-guide'
}));
return yAxisLines;
},
animate: () => {}
});
});
}
getDataUnitsComponents() {
return this.state.datasets.map((d, index) => {
return new ChartComponent({
layerClass: 'dataset-units dataset-' + index,
make: () => {
let d = this.state.datasets[index];
let unitType = this.unitArgs;
// the only difference, should be tied to datasets or default
this.renderer.setZeroline(d.yAxis.zeroLine);
return d.positions.map((y, j) => {
return this.renderer[unitType.type](
this.state.xAxisPositions[j],
y,
unitType.args,
this.colors[index],
j,
index,
this.state.datasetLength
);
});
},
animate: () => {}
});
});
}
}
class PercentageChart extends BaseChart {
constructor(args) {
super(args);
this.type = 'percentage';
this.max_slices = 10;
this.max_legend_points = 6;
this.setup();
}
makeChartArea() {
this.chartWrapper.className += ' ' + 'graph-focus-margin';
this.chartWrapper.style.marginTop = '45px';
this.statsWrapper.className += ' ' + 'graph-focus-margin';
this.statsWrapper.style.marginBottom = '30px';
this.statsWrapper.style.paddingTop = '0px';
this.chartDiv = $.create('div', {
className: 'div',
inside: this.chartWrapper
});
this.chart = $.create('div', {
className: 'progress-chart',
inside: this.chartDiv
});
}
setupLayers() {
this.percentageBar = $.create('div', {
className: 'progress',
inside: this.chart
});
}
setup_values() {
this.slice_totals = [];
let all_totals = this.data.labels.map((d, i) => {
let total = 0;
this.data.datasets.map(e => {
total += e.values[i];
});
return [total, d];
}).filter(d => { return d[0] > 0; }); // keep only positive results
let totals = all_totals;
if(all_totals.length > this.max_slices) {
all_totals.sort((a, b) => { return b[0] - a[0]; });
totals = all_totals.slice(0, this.max_slices-1);
let others = all_totals.slice(this.max_slices-1);
let sum_of_others = 0;
others.map(d => {sum_of_others += d[0];});
totals.push([sum_of_others, 'Rest']);
this.colors[this.max_slices-1] = 'grey';
}
this.labels = [];
totals.map(d => {
this.slice_totals.push(d[0]);
this.labels.push(d[1]);
});
this.legend_totals = this.slice_totals.slice(0, this.max_legend_points);
}
renderComponents() {
this.grand_total = this.slice_totals.reduce((a, b) => a + b, 0);
this.slices = [];
this.slice_totals.map((total, i) => {
let slice = $.create('div', {
className: `progress-bar`,
inside: this.percentageBar,
styles: {
background: this.colors[i],
width: total*100/this.grand_total + "%"
}
});
this.slices.push(slice);
});
}
bindTooltip() {
this.slices.map((slice, i) => {
slice.addEventListener('mouseenter', () => {
let g_off = getOffset(this.chartWrapper), p_off = getOffset(slice);
let x = p_off.left - g_off.left + slice.offsetWidth/2;
let y = p_off.top - g_off.top - 6;
let title = (this.formatted_labels && this.formatted_labels.length>0
? this.formatted_labels[i] : this.labels[i]) + ': ';
let percent = (this.slice_totals[i]*100/this.grand_total).toFixed(1);
this.tip.set_values(x, y, title, percent + "%");
this.tip.show_tip();
});
});
}
renderLegend() {
let x_values = this.formatted_labels && this.formatted_labels.length > 0
? this.formatted_labels : this.labels;
this.legend_totals.map((d, i) => {
if(d) {
let stats = $.create('div', {
className: 'stats',
inside: this.statsWrapper
});
stats.innerHTML = `<span class="indicator">
<i style="background: ${this.colors[i]}"></i>
<span class="text-muted">${x_values[i]}:</span>
${d}
</span>`;
}
});
}
}
const ANGLE_RATIO = Math.PI / 180;
const FULL_ANGLE = 360;
class PieChart extends BaseChart {
constructor(args) {
super(args);
this.type = 'pie';
this.elements_to_animate = null;
this.hoverRadio = args.hoverRadio || 0.1;
this.max_slices = 10;
this.max_legend_points = 6;
this.isAnimate = false;
this.startAngle = args.startAngle || 0;
this.clockWise = args.clockWise || false;
this.mouseMove = this.mouseMove.bind(this);
this.mouseLeave = this.mouseLeave.bind(this);
this.setup();
}
setup_values() {
this.centerX = this.width / 2;
this.centerY = this.height / 2;
this.radius = (this.height > this.width ? this.centerX : this.centerY);
this.slice_totals = [];
let all_totals = this.data.labels.map((d, i) => {
let total = 0;
this.data.datasets.map(e => {
total += e.values[i];
});
return [total, d];
}).filter(d => { return d[0] > 0; }); // keep only positive results
let totals = all_totals;
if(all_totals.length > this.max_slices) {
all_totals.sort((a, b) => { return b[0] - a[0]; });
totals = all_totals.slice(0, this.max_slices-1);
let others = all_totals.slice(this.max_slices-1);
let sum_of_others = 0;
others.map(d => {sum_of_others += d[0];});
totals.push([sum_of_others, 'Rest']);
this.colors[this.max_slices-1] = 'grey';
}
this.labels = [];
totals.map(d => {
this.slice_totals.push(d[0]);
this.labels.push(d[1]);
});
this.legend_totals = this.slice_totals.slice(0, this.max_legend_points);
}
static getPositionByAngle(angle,radius){
return {
x:Math.sin(angle * ANGLE_RATIO) * radius,
y:Math.cos(angle * ANGLE_RATIO) * radius,
};
}
makeArcPath(startPosition,endPosition){
const{centerX,centerY,radius,clockWise} = this;
return `M${centerX} ${centerY} L${centerX+startPosition.x} ${centerY+startPosition.y} A ${radius} ${radius} 0 0 ${clockWise ? 1 : 0} ${centerX+endPosition.x} ${centerY+endPosition.y} z`;
}
renderComponents(init){
const{radius,clockWise} = this;
this.grand_total = this.slice_totals.reduce((a, b) => a + b, 0);
const prevSlicesProperties = this.slicesProperties || [];
this.slices = [];
this.elements_to_animate = [];
this.slicesProperties = [];
let curAngle = 180 - this.startAngle;
this.slice_totals.map((total, i) => {
const startAngle = curAngle;
const originDiffAngle = (total / this.grand_total) * FULL_ANGLE;
const diffAngle = clockWise ? -originDiffAngle : originDiffAngle;
const endAngle = curAngle = curAngle + diffAngle;
const startPosition = PieChart.getPositionByAngle(startAngle,radius);
const endPosition = PieChart.getPositionByAngle(endAngle,radius);
const prevProperty = init && prevSlicesProperties[i];
let curStart,curEnd;
if(init){
curStart = prevProperty?prevProperty.startPosition : startPosition;
curEnd = prevProperty? prevProperty.endPosition : startPosition;
}else{
curStart = startPosition;
curEnd = endPosition;
}
const curPath = this.makeArcPath(curStart,curEnd);
let slice = makePath(curPath, 'pie-path', 'none', this.colors[i]);
slice.style.transition = 'transform .3s;';
this.drawArea.appendChild(slice);
this.slices.push(slice);
this.slicesProperties.push({
startPosition,
endPosition,
value: total,
total: this.grand_total,
startAngle,
endAngle,
angle:diffAngle
});
if(init){
this.elements_to_animate.push([{unit: slice, array: this.slices, index: this.slices.length - 1},
{d:this.makeArcPath(startPosition,endPosition)},
650, "easein",null,{
d:curPath
}]);
}
});
if(init){
runSMILAnimation(this.chartWrapper, this.svg, this.elements_to_animate);
}
}
calTranslateByAngle(property){
const{radius,hoverRadio} = this;
const position = PieChart.getPositionByAngle(property.startAngle+(property.angle / 2),radius);
return `translate3d(${(position.x) * hoverRadio}px,${(position.y) * hoverRadio}px,0)`;
}
hoverSlice(path,i,flag,e){
if(!path) return;
const color = this.colors[i];
if(flag){
transform(path,this.calTranslateByAngle(this.slicesProperties[i]));
path.style.fill = lightenDarkenColor(color,50);
let g_off = getOffset(this.svg);
let x = e.pageX - g_off.left + 10;
let y = e.pageY - g_off.top - 10;
let title = (this.formatted_labels && this.formatted_labels.length>0
? this.formatted_labels[i] : this.labels[i]) + ': ';
let percent = (this.slice_totals[i]*100/this.grand_total).toFixed(1);
this.tip.set_values(x, y, title, percent + "%");
this.tip.show_tip();
}else{
transform(path,'translate3d(0,0,0)');
this.tip.hide_tip();
path.style.fill = color;
}
}
mouseMove(e){
const target = e.target;
let prevIndex = this.curActiveSliceIndex;
let prevAcitve = this.curActiveSlice;
for(let i = 0; i < this.slices.length; i++){
if(target === this.slices[i]){
this.hoverSlice(prevAcitve,prevIndex,false);
this.curActiveSlice = target;
this.curActiveSliceIndex = i;
this.hoverSlice(target,i,true,e);
break;
}
}
}
mouseLeave(){
this.hoverSlice(this.curActiveSlice,this.curActiveSliceIndex,false);
}
bindTooltip() {
this.drawArea.addEventListener('mousemove',this.mouseMove);
this.drawArea.addEventListener('mouseleave',this.mouseLeave);
}
renderLegend() {
let x_values = this.formatted_labels && this.formatted_labels.length > 0
? this.formatted_labels : this.labels;
this.legend_totals.map((d, i) => {
const color = this.colors[i];
if(d) {
let stats = $.create('div', {
className: 'stats',
inside: this.statsWrapper
});
stats.innerHTML = `<span class="indicator">
<i style="background-color:${color};"></i>
<span class="text-muted">${x_values[i]}:</span>
${d}
</span>`;
}
});
}
}
// Playing around with dates
// https://stackoverflow.com/a/11252167/6495043
function treatAsUtc(dateStr) {
let result = new Date(dateStr);
result.setMinutes(result.getMinutes() - result.getTimezoneOffset());
return result;
}
function getDdMmYyyy(date) {
let dd = date.getDate();
let mm = date.getMonth() + 1; // getMonth() is zero-based
return [
(dd>9 ? '' : '0') + dd,
(mm>9 ? '' : '0') + mm,
date.getFullYear()
].join('-');
}
function getWeeksBetween(startDateStr, endDateStr) {
return Math.ceil(getDaysBetween(startDateStr, endDateStr) / 7);
}
function getDaysBetween(startDateStr, endDateStr) {
let millisecondsPerDay = 24 * 60 * 60 * 1000;
return (treatAsUtc(endDateStr) - treatAsUtc(startDateStr)) / millisecondsPerDay;
}
// mutates
function addDays(date, numberOfDays) {
date.setDate(date.getDate() + numberOfDays);
}
// export function getMonthName() {}
class Heatmap extends BaseChart {
constructor({
start = '',
domain = '',
subdomain = '',
data = {},
discrete_domains = 0,
count_label = '',
legend_colors = []
}) {
super(arguments[0]);
this.type = 'heatmap';
this.domain = domain;
this.subdomain = subdomain;
this.data = data;
this.discrete_domains = discrete_domains;
this.count_label = count_label;
let today = new Date();
this.start = start || addDays(today, 365);
legend_colors = legend_colors.slice(0, 5);
this.legend_colors = this.validate_colors(legend_colors)
? legend_colors
: ['#ebedf0', '#c6e48b', '#7bc96f', '#239a3b', '#196127'];
// Fixed 5-color theme,
// More colors are difficult to parse visually
this.distribution_size = 5;
this.translateX = 0;
// this.setup();
}
validate_colors(colors) {
if(colors.length < 5) return 0;
let valid = 1;
colors.forEach(function(string) {
if(!isValidColor(string)) {
valid = 0;
console.warn('"' + string + '" is not a valid color.');
}
}, this);
return valid;
}
setupConstants() {
this.today = new Date();
if(!this.start) {
this.start = new Date();
this.start.setFullYear( this.start.getFullYear() - 1 );
}
this.first_week_start = new Date(this.start.toDateString());
this.last_week_start = new Date(this.today.toDateString());
if(this.first_week_start.getDay() !== 7) {
addDays(this.first_week_start, (-1) * this.first_week_start.getDay());
}
if(this.last_week_start.getDay() !== 7) {
addDays(this.last_week_start, (-1) * this.last_week_start.getDay());
}
this.no_of_cols = getWeeksBetween(this.first_week_start + '', this.last_week_start + '') + 1;
}
calcWidth() {
this.baseWidth = (this.no_of_cols + 3) * 12 ;
if(this.discrete_domains) {
this.baseWidth += (12 * 12);
}
}
setupLayers() {
this.domain_label_group = this.makeLayer(
'domain-label-group chart-label');
this.data_groups = this.makeLayer(
'data-groups',
`translate(0, 20)`
);
}
setup_values() {
this.domain_label_group.textContent = '';
this.data_groups.textContent = '';
let data_values = Object.keys(this.data).map(key => this.data[key]);
this.distribution = calcDistribution(data_values, this.distribution_size);
this.month_names = ["January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"
];
this.render_all_weeks_and_store_x_values(this.no_of_cols);
}
render_all_weeks_and_store_x_values(no_of_weeks) {
let current_week_sunday = new Date(this.first_week_start);
this.week_col = 0;
this.current_month = current_week_sunday.getMonth();
this.months = [this.current_month + ''];
this.month_weeks = {}, this.month_start_points = [];
this.month_weeks[this.current_month] = 0;
this.month_start_points.push(13);
for(var i = 0; i < no_of_weeks; i++) {
let data_group, month_change = 0;
let day = new Date(current_week_sunday);
[data_group, month_change] = this.get_week_squares_group(day, this.week_col);
this.data_groups.appendChild(data_group);
this.week_col += 1 + parseInt(this.discrete_domains && month_change);
this.month_weeks[this.current_month]++;
if(month_change) {
this.current_month = (this.current_month + 1) % 12;
this.months.push(this.current_month + '');
this.month_weeks[this.current_month] = 1;
}
addDays(current_week_sunday, 7);
}
this.render_month_labels();
}
get_week_squares_group(current_date, index) {
const no_of_weekdays = 7;
const square_side = 10;
const cell_padding = 2;
const step = 1;
const today_time = this.today.getTime();
let month_change = 0;
let week_col_change = 0;
let data_group = makeSVGGroup(this.data_groups, 'data-group');
for(var y = 0, i = 0; i < no_of_weekdays; i += step, y += (square_side + cell_padding)) {
let data_value = 0;
let color_index = 0;
let current_timestamp = current_date.getTime()/1000;
let timestamp = Math.floor(current_timestamp - (current_timestamp % 86400)).toFixed(1);
if(this.data[timestamp]) {
data_value = this.data[timestamp];
}
if(this.data[Math.round(timestamp)]) {
data_value = this.data[Math.round(timestamp)];
}
if(data_value) {
color_index = getMaxCheckpoint(data_value, this.distribution);
}
let x = 13 + (index + week_col_change) * 12;
let dataAttr = {
'data-date': getDdMmYyyy(current_date),
'data-value': data_value,
'data-day': current_date.getDay()
};
let heatSquare = makeHeatSquare('day', x, y, square_side,
this.legend_colors[color_index], dataAttr);
data_group.appendChild(heatSquare);
let next_date = new Date(current_date);
addDays(next_date, 1);
if(next_date.getTime() > today_time) break;
if(next_date.getMonth() - current_date.getMonth()) {
month_change = 1;
if(this.discrete_domains) {
week_col_change = 1;
}
this.month_start_points.push(13 + (index + week_col_change) * 12);
}
current_date = next_date;
}
return [data_group, month_change];
}
render_month_labels() {
// this.first_month_label = 1;
// if (this.first_week_start.getDate() > 8) {
// this.first_month_label = 0;
// }
// this.last_month_label = 1;
// let first_month = this.months.shift();
// let first_month_start = this.month_start_points.shift();
// render first month if
// let last_month = this.months.pop();
// let last_month_start = this.month_start_points.pop();
// render last month if
this.months.shift();
this.month_start_points.shift();
this.months.pop();
this.month_start_points.pop();
this.month_start_points.map((start, i) => {
let month_name = this.month_names[this.months[i]].substring(0, 3);
let text = makeText('y-value-text', start+12, 10, month_name);
this.domain_label_group.appendChild(text);
});
}
renderComponents() {
Array.prototype.slice.call(
this.container.querySelectorAll('.graph-stats-container, .sub-title, .title')
).map(d => {
d.style.display = 'None';
});
this.chartWrapper.style.marginTop = '0px';
this.chartWrapper.style.paddingTop = '0px';
}
bindTooltip() {
Array.prototype.slice.call(
document.querySelectorAll(".data-group .day")
).map(el => {
el.addEventListener('mouseenter', (e) => {
let count = e.target.getAttribute('data-value');
let date_parts = e.target.getAttribute('data-date').split('-');
let month = this.month_names[parseInt(date_parts[1])-1].substring(0, 3);
let g_off = this.chartWrapper.getBoundingClientRect(), p_off = e.target.getBoundingClientRect();
let width = parseInt(e.target.getAttribute('width'));
let x = p_off.left - g_off.left + (width+2)/2;
let y = p_off.top - g_off.top - (width+2)/2;
let value = count + ' ' + this.count_label;
let name = ' on ' + month + ' ' + date_parts[0] + ', ' + date_parts[2];
this.tip.set_values(x, y, name, value, [], 1);
this.tip.show_tip();
});
});
}
update(data) {
this.data = data;
this.setup_values();
this.bindTooltip();
}
}
const chartTypes = {
line: LineChart,
bar: BarChart,
multiaxis: MultiAxisChart,
scatter: ScatterChart,
percentage: PercentageChart,
heatmap: Heatmap,
pie: PieChart
};
function getChartByType(chartType = 'line', options) {
if (!chartTypes[chartType]) {
return new LineChart(options);
}
return new chartTypes[chartType](options);
}
class Chart {
constructor(args) {
return getChartByType(args.type, arguments[0]);
}
}
export default Chart;