/*
* Copyright © 2016-2017 The Thingsboard Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import $ from 'jquery';
import tinycolor from 'tinycolor2';
import moment from 'moment';
import 'flot/lib/jquery.colorhelpers';
import 'flot/src/jquery.flot';
import 'flot/src/plugins/jquery.flot.time';
import 'flot/src/plugins/jquery.flot.selection';
import 'flot/src/plugins/jquery.flot.pie';
import 'flot/src/plugins/jquery.flot.crosshair';
import 'flot/src/plugins/jquery.flot.stack';
/* eslint-disable angular/angularelement */
export default class TbFlot {
constructor(ctx, chartType) {
this.ctx = ctx;
this.chartType = chartType || 'line';
var colors = [];
for (var i = 0; i < ctx.data.length; i++) {
var series = ctx.data[i];
colors.push(series.dataKey.color);
var keySettings = series.dataKey.settings;
series.lines = {
fill: keySettings.fillLines === true,
show: this.chartType === 'line' ? keySettings.showLines !== false : keySettings.showLines === true
};
series.points = {
show: false,
radius: 8
};
if (keySettings.showPoints === true) {
series.points.show = true;
series.points.lineWidth = 5;
series.points.radius = 3;
}
var lineColor = tinycolor(series.dataKey.color);
lineColor.setAlpha(.75);
series.highlightColor = lineColor.toRgbString();
}
ctx.tooltip = $('#flot-series-tooltip');
if (ctx.tooltip.length === 0) {
ctx.tooltip = $("<div id='flot-series-tooltip' class='flot-mouse-value'></div>");
ctx.tooltip.css({
fontSize: "12px",
fontFamily: "Roboto",
fontWeight: "300",
lineHeight: "18px",
opacity: "1",
backgroundColor: "rgba(0,0,0,0.7)",
color: "#D9DADB",
position: "absolute",
display: "none",
zIndex: "100",
padding: "4px 10px",
borderRadius: "4px"
}).appendTo("body");
}
var tbFlot = this;
function seriesInfoDiv(label, color, value, units, trackDecimals, active, percent) {
var divElement = $('<div></div>');
divElement.css({
display: "flex",
alignItems: "center",
justifyContent: "flex-start"
});
var lineSpan = $('<span></span>');
lineSpan.css({
backgroundColor: color,
width: "20px",
height: "3px",
display: "inline-block",
verticalAlign: "middle",
marginRight: "5px"
});
divElement.append(lineSpan);
var labelSpan = $('<span>' + label + ':</span>');
labelSpan.css({
marginRight: "10px"
});
if (active) {
labelSpan.css({
color: "#FFF",
fontWeight: "700"
});
}
divElement.append(labelSpan);
var valueContent = tbFlot.ctx.utils.formatValue(value, trackDecimals, units);
if (angular.isNumber(percent)) {
valueContent += ' (' + Math.round(percent) + ' %)';
}
var valueSpan = $('<span>' + valueContent + '</span>');
valueSpan.css({
marginLeft: "auto",
fontWeight: "700"
});
if (active) {
valueSpan.css({
color: "#FFF"
});
}
divElement.append(valueSpan);
return divElement;
}
if (this.chartType === 'pie') {
ctx.tooltipFormatter = function(item) {
var divElement = seriesInfoDiv(item.series.dataKey.label, item.series.dataKey.color,
item.datapoint[1][0][1], tbFlot.ctx.trackUnits, tbFlot.ctx.trackDecimals, true, item.series.percent);
return divElement.prop('outerHTML');
};
} else {
ctx.tooltipFormatter = function(hoverInfo, seriesIndex) {
var content = '';
var timestamp = parseInt(hoverInfo.time);
var date = moment(timestamp).format('YYYY-MM-DD HH:mm:ss');
var dateDiv = $('<div>' + date + '</div>');
dateDiv.css({
display: "flex",
alignItems: "center",
justifyContent: "center",
padding: "4px",
fontWeight: "700"
});
content += dateDiv.prop('outerHTML');
for (var i = 0; i < hoverInfo.seriesHover.length; i++) {
var seriesHoverInfo = hoverInfo.seriesHover[i];
if (tbFlot.ctx.tooltipIndividual && seriesHoverInfo.index !== seriesIndex) {
continue;
}
var divElement = seriesInfoDiv(seriesHoverInfo.label, seriesHoverInfo.color,
seriesHoverInfo.value, tbFlot.ctx.trackUnits, tbFlot.ctx.trackDecimals, seriesHoverInfo.index === seriesIndex);
content += divElement.prop('outerHTML');
}
return content;
};
}
var settings = ctx.settings;
ctx.trackDecimals = angular.isDefined(settings.decimals) ?
settings.decimals : ctx.decimals;
ctx.trackUnits = angular.isDefined(settings.units) ? settings.units : ctx.units;
ctx.tooltipIndividual = this.chartType === 'pie' || (angular.isDefined(settings.tooltipIndividual) ? settings.tooltipIndividual : false);
ctx.tooltipCumulative = angular.isDefined(settings.tooltipCumulative) ? settings.tooltipCumulative : false;
var font = {
color: settings.fontColor || "#545454",
size: settings.fontSize || 10,
family: "Roboto"
};
var options = {
colors: colors,
title: null,
subtitle: null,
shadowSize: settings.shadowSize || 4,
HtmlText: false,
grid: {
hoverable: true,
mouseActiveRadius: 10,
autoHighlight: ctx.tooltipIndividual === true
},
selection : { mode : ctx.isMobile ? null : 'x' },
legend : {
show: false
}
};
if (this.chartType === 'line' || this.chartType === 'bar') {
options.xaxis = {
mode: 'time',
timezone: 'browser',
font: angular.copy(font),
labelFont: angular.copy(font)
};
options.yaxis = {
font: angular.copy(font),
labelFont: angular.copy(font)
};
if (settings.xaxis) {
if (settings.xaxis.showLabels === false) {
options.xaxis.tickFormatter = function() {
return '';
};
}
options.xaxis.font.color = settings.xaxis.color || options.xaxis.font.color;
options.xaxis.label = settings.xaxis.title || null;
options.xaxis.labelFont.color = options.xaxis.font.color;
options.xaxis.labelFont.size = options.xaxis.font.size+2;
options.xaxis.labelFont.weight = "bold";
}
if (settings.yaxis) {
if (settings.yaxis.showLabels === false) {
options.yaxis.tickFormatter = function() {
return '';
};
} else if (ctx.trackUnits && ctx.trackUnits.length > 0) {
options.yaxis.tickFormatter = function(value, axis) {
var factor = axis.tickDecimals ? Math.pow(10, axis.tickDecimals) : 1,
formatted = "" + Math.round(value * factor) / factor;
if (axis.tickDecimals != null) {
var decimal = formatted.indexOf("."),
precision = decimal === -1 ? 0 : formatted.length - decimal - 1;
if (precision < axis.tickDecimals) {
formatted = (precision ? formatted : formatted + ".") + ("" + factor).substr(1, axis.tickDecimals - precision);
}
}
formatted += ' ' + tbFlot.ctx.trackUnits;
return formatted;
};
}
options.yaxis.font.color = settings.yaxis.color || options.yaxis.font.color;
options.yaxis.label = settings.yaxis.title || null;
options.yaxis.labelFont.color = options.yaxis.font.color;
options.yaxis.labelFont.size = options.yaxis.font.size+2;
options.yaxis.labelFont.weight = "bold";
}
options.grid.borderWidth = 1;
options.grid.color = settings.fontColor || "#545454";
if (settings.grid) {
options.grid.color = settings.grid.color || "#545454";
options.grid.backgroundColor = settings.grid.backgroundColor || null;
options.grid.tickColor = settings.grid.tickColor || "#DDDDDD";
options.grid.borderWidth = angular.isDefined(settings.grid.outlineWidth) ?
settings.grid.outlineWidth : 1;
if (settings.grid.verticalLines === false) {
options.xaxis.tickLength = 0;
}
if (settings.grid.horizontalLines === false) {
options.yaxis.tickLength = 0;
}
}
options.crosshair = {
mode: 'x'
}
options.series = {
stack: settings.stack === true
}
if (this.chartType === 'bar') {
options.series.lines = {
show: false,
fill: false,
steps: false
}
options.series.bars ={
show: true,
barWidth: ctx.timeWindow.interval * 0.6,
lineWidth: 0,
fill: 0.9
}
}
options.xaxis.min = ctx.timeWindow.minTime;
options.xaxis.max = ctx.timeWindow.maxTime;
} else if (this.chartType === 'pie') {
options.series = {
pie: {
show: true,
label: {
show: settings.showLabels === true
},
radius: settings.radius || 1,
innerRadius: settings.innerRadius || 0,
stroke: {
color: '#fff',
width: 0
},
tilt: settings.tilt || 1,
shadow: {
left: 5,
top: 15,
alpha: 0.02
}
}
}
if (settings.stroke) {
options.series.pie.stroke.color = settings.stroke.color || '#fff';
options.series.pie.stroke.width = settings.stroke.width || 0;
}
if (options.series.pie.label.show) {
options.series.pie.label.formatter = function (label, series) {
return "<div class='pie-label'>" + series.dataKey.label + "<br/>" + Math.round(series.percent) + "%</div>";
}
options.series.pie.label.radius = 3/4;
options.series.pie.label.background = {
opacity: 0.8
};
}
}
//Experimental
this.ctx.animatedPie = settings.animatedPie === true;
this.options = options;
this.checkMouseEvents();
if (this.chartType === 'pie' && this.ctx.animatedPie) {
this.ctx.pieDataAnimationDuration = 250;
this.ctx.pieData = angular.copy(this.ctx.data);
this.ctx.pieRenderedData = [];
this.ctx.pieTargetData = [];
for (i = 0; i < this.ctx.data.length; i++) {
this.ctx.pieTargetData[i] = (this.ctx.data[i].data && this.ctx.data[i].data[0])
? this.ctx.data[i].data[0][1] : 0;
}
this.pieDataRendered();
this.ctx.plot = $.plot(this.ctx.$container, this.ctx.pieData, this.options);
} else {
this.ctx.plot = $.plot(this.ctx.$container, this.ctx.data, this.options);
}
}
update() {
if (!this.isMouseInteraction && this.ctx.plot) {
if (this.chartType === 'line' || this.chartType === 'bar') {
this.options.xaxis.min = this.ctx.timeWindow.minTime;
this.options.xaxis.max = this.ctx.timeWindow.maxTime;
this.ctx.plot.getOptions().xaxes[0].min = this.ctx.timeWindow.minTime;
this.ctx.plot.getOptions().xaxes[0].max = this.ctx.timeWindow.maxTime;
if (this.chartType === 'bar') {
this.options.series.bars.barWidth = this.ctx.timeWindow.interval * 0.6;
this.ctx.plot.getOptions().series.bars.barWidth = this.ctx.timeWindow.interval * 0.6;
}
this.ctx.plot.setData(this.ctx.data);
this.ctx.plot.setupGrid();
this.ctx.plot.draw();
} else if (this.chartType === 'pie') {
if (this.ctx.animatedPie) {
this.nextPieDataAnimation(true);
} else {
this.ctx.plot.setData(this.ctx.data);
this.ctx.plot.draw();
}
}
}
}
resize() {
this.ctx.plot.resize();
if (this.chartType !== 'pie') {
this.ctx.plot.setupGrid();
}
this.ctx.plot.draw();
}
static get pieSettingsSchema() {
return {
"schema": {
"type": "object",
"title": "Settings",
"properties": {
"radius": {
"title": "Radius",
"type": "number",
"default": 1
},
"innerRadius": {
"title": "Inner radius",
"type": "number",
"default": 0
},
"tilt": {
"title": "Tilt",
"type": "number",
"default": 1
},
"animatedPie": {
"title": "Enable pie animation (experimental)",
"type": "boolean",
"default": false
},
"stroke": {
"title": "Stroke",
"type": "object",
"properties": {
"color": {
"title": "Color",
"type": "string",
"default": ""
},
"width": {
"title": "Width (pixels)",
"type": "number",
"default": 0
}
}
},
"showLabels": {
"title": "Show labels",
"type": "boolean",
"default": false
},
"fontColor": {
"title": "Font color",
"type": "string",
"default": "#545454"
},
"fontSize": {
"title": "Font size",
"type": "number",
"default": 10
}
},
"required": []
},
"form": [
"radius",
"innerRadius",
"animatedPie",
"tilt",
{
"key": "stroke",
"items": [
{
"key": "stroke.color",
"type": "color"
},
"stroke.width"
]
},
"showLabels",
{
"key": "fontColor",
"type": "color"
},
"fontSize"
]
}
}
static get settingsSchema() {
return {
"schema": {
"type": "object",
"title": "Settings",
"properties": {
"stack": {
"title": "Stacking",
"type": "boolean",
"default": false
},
"shadowSize": {
"title": "Shadow size",
"type": "number",
"default": 4
},
"fontColor": {
"title": "Font color",
"type": "string",
"default": "#545454"
},
"fontSize": {
"title": "Font size",
"type": "number",
"default": 10
},
"tooltipIndividual": {
"title": "Hover individual points",
"type": "boolean",
"default": false
},
"tooltipCumulative": {
"title": "Show cumulative values in stacking mode",
"type": "boolean",
"default": false
},
"grid": {
"title": "Grid settings",
"type": "object",
"properties": {
"color": {
"title": "Primary color",
"type": "string",
"default": "#545454"
},
"backgroundColor": {
"title": "Background color",
"type": "string",
"default": null
},
"tickColor": {
"title": "Ticks color",
"type": "string",
"default": "#DDDDDD"
},
"outlineWidth": {
"title": "Grid outline/border width (px)",
"type": "number",
"default": 1
},
"verticalLines": {
"title": "Show vertical lines",
"type": "boolean",
"default": true
},
"horizontalLines": {
"title": "Show horizontal lines",
"type": "boolean",
"default": true
}
}
},
"xaxis": {
"title": "X axis settings",
"type": "object",
"properties": {
"showLabels": {
"title": "Show labels",
"type": "boolean",
"default": true
},
"title": {
"title": "Axis title",
"type": "string",
"default": null
},
"titleAngle": {
"title": "Axis title's angle in degrees",
"type": "number",
"default": 0
},
"color": {
"title": "Ticks color",
"type": "string",
"default": null
}
}
},
"yaxis": {
"title": "Y axis settings",
"type": "object",
"properties": {
"showLabels": {
"title": "Show labels",
"type": "boolean",
"default": true
},
"title": {
"title": "Axis title",
"type": "string",
"default": null
},
"titleAngle": {
"title": "Axis title's angle in degrees",
"type": "number",
"default": 0
},
"color": {
"title": "Ticks color",
"type": "string",
"default": null
}
}
}
},
"required": []
},
"form": [
"stack",
"shadowSize",
{
"key": "fontColor",
"type": "color"
},
"fontSize",
"tooltipIndividual",
"tooltipCumulative",
{
"key": "grid",
"items": [
{
"key": "grid.color",
"type": "color"
},
{
"key": "grid.backgroundColor",
"type": "color"
},
{
"key": "grid.tickColor",
"type": "color"
},
"grid.outlineWidth",
"grid.verticalLines",
"grid.horizontalLines"
]
},
{
"key": "xaxis",
"items": [
"xaxis.showLabels",
"xaxis.title",
"xaxis.titleAngle",
{
"key": "xaxis.color",
"type": "color"
}
]
},
{
"key": "yaxis",
"items": [
"yaxis.showLabels",
"yaxis.title",
"yaxis.titleAngle",
{
"key": "yaxis.color",
"type": "color"
}
]
}
]
}
}
static get pieDatakeySettingsSchema() {
return {}
}
static datakeySettingsSchema(defaultShowLines) {
return {
"schema": {
"type": "object",
"title": "DataKeySettings",
"properties": {
"showLines": {
"title": "Show lines",
"type": "boolean",
"default": defaultShowLines
},
"fillLines": {
"title": "Fill lines",
"type": "boolean",
"default": false
},
"showPoints": {
"title": "Show points",
"type": "boolean",
"default": false
}
},
"required": ["showLines", "fillLines", "showPoints"]
},
"form": [
"showLines",
"fillLines",
"showPoints"
]
}
}
checkMouseEvents() {
var enabled = !this.ctx.isMobile && !this.ctx.isEdit;
if (angular.isUndefined(this.mouseEventsEnabled) || this.mouseEventsEnabled != enabled) {
this.mouseEventsEnabled = enabled;
if (enabled) {
this.enableMouseEvents();
} else {
this.disableMouseEvents();
}
if (this.ctx.plot) {
this.ctx.plot.destroy();
if (this.chartType === 'pie' && this.ctx.animatedPie) {
this.ctx.plot = $.plot(this.ctx.$container, this.ctx.pieData, this.options);
} else {
this.ctx.plot = $.plot(this.ctx.$container, this.ctx.data, this.options);
}
}
}
}
destroy() {
if (this.ctx.plot) {
this.ctx.plot.destroy();
this.ctx.plot = null;
}
}
enableMouseEvents() {
this.ctx.$container.css('pointer-events','');
this.ctx.$container.addClass('mouse-events');
this.options.selection = { mode : 'x' };
var tbFlot = this;
if (!this.flotHoverHandler) {
this.flotHoverHandler = function (event, pos, item) {
if (!tbFlot.ctx.tooltipIndividual || item) {
var multipleModeTooltip = !tbFlot.ctx.tooltipIndividual;
if (multipleModeTooltip) {
tbFlot.ctx.plot.unhighlight();
}
var pageX = pos.pageX;
var pageY = pos.pageY;
var tooltipHtml;
if (tbFlot.chartType === 'pie') {
tooltipHtml = tbFlot.ctx.tooltipFormatter(item);
} else {
var hoverInfo = tbFlot.getHoverInfo(tbFlot.ctx.plot.getData(), pos);
if (angular.isNumber(hoverInfo.time)) {
hoverInfo.seriesHover.sort(function (a, b) {
return b.value - a.value;
});
tooltipHtml = tbFlot.ctx.tooltipFormatter(hoverInfo, item ? item.seriesIndex : -1);
}
}
if (tooltipHtml) {
tbFlot.ctx.tooltip.html(tooltipHtml)
.css({top: pageY+5, left: 0})
.fadeIn(200);
var windowWidth = $( window ).width(); //eslint-disable-line
var tooltipWidth = tbFlot.ctx.tooltip.width();
var left = pageX+5;
if (windowWidth - pageX < tooltipWidth + 50) {
left = pageX - tooltipWidth - 10;
}
tbFlot.ctx.tooltip.css({
left: left
});
if (multipleModeTooltip) {
for (var i = 0; i < hoverInfo.seriesHover.length; i++) {
var seriesHoverInfo = hoverInfo.seriesHover[i];
tbFlot.ctx.plot.highlight(seriesHoverInfo.index, seriesHoverInfo.hoverIndex);
}
}
}
} else {
tbFlot.ctx.tooltip.stop(true);
tbFlot.ctx.tooltip.hide();
tbFlot.ctx.plot.unhighlight();
}
};
this.ctx.$container.bind('plothover', this.flotHoverHandler);
}
if (!this.flotSelectHandler) {
this.flotSelectHandler = function (event, ranges) {
tbFlot.ctx.plot.clearSelection();
tbFlot.ctx.timewindowFunctions.onUpdateTimewindow(ranges.xaxis.from, ranges.xaxis.to);
};
this.ctx.$container.bind('plotselected', this.flotSelectHandler);
}
if (!this.dblclickHandler) {
this.dblclickHandler = function () {
tbFlot.ctx.timewindowFunctions.onResetTimewindow();
};
this.ctx.$container.bind('dblclick', this.dblclickHandler);
}
if (!this.mousedownHandler) {
this.mousedownHandler = function () {
tbFlot.isMouseInteraction = true;
};
this.ctx.$container.bind('mousedown', this.mousedownHandler);
}
if (!this.mouseupHandler) {
this.mouseupHandler = function () {
tbFlot.isMouseInteraction = false;
};
this.ctx.$container.bind('mouseup', this.mouseupHandler);
}
if (!this.mouseleaveHandler) {
this.mouseleaveHandler = function () {
tbFlot.ctx.tooltip.stop(true);
tbFlot.ctx.tooltip.hide();
tbFlot.ctx.plot.unhighlight();
tbFlot.isMouseInteraction = false;
};
this.ctx.$container.bind('mouseleave', this.mouseleaveHandler);
}
}
disableMouseEvents() {
this.ctx.$container.css('pointer-events','none');
this.ctx.$container.removeClass('mouse-events');
this.options.selection = { mode : null };
if (this.flotHoverHandler) {
this.ctx.$container.unbind('plothover', this.flotHoverHandler);
this.flotHoverHandler = null;
}
if (this.flotSelectHandler) {
this.ctx.$container.unbind('plotselected', this.flotSelectHandler);
this.flotSelectHandler = null;
}
if (this.dblclickHandler) {
this.ctx.$container.unbind('dblclick', this.dblclickHandler);
this.dblclickHandler = null;
}
if (this.mousedownHandler) {
this.ctx.$container.unbind('mousedown', this.mousedownHandler);
this.mousedownHandler = null;
}
if (this.mouseupHandler) {
this.ctx.$container.unbind('mouseup', this.mouseupHandler);
this.mouseupHandler = null;
}
if (this.mouseleaveHandler) {
this.ctx.$container.unbind('mouseleave', this.mouseleaveHandler);
this.mouseleaveHandler = null;
}
}
findHoverIndexFromData (posX, series) {
var lower = 0;
var upper = series.data.length - 1;
var middle;
var index = null;
while (index === null) {
if (lower > upper) {
return Math.max(upper, 0);
}
middle = Math.floor((lower + upper) / 2);
if (series.data[middle][0] === posX) {
return middle;
} else if (series.data[middle][0] < posX) {
lower = middle + 1;
} else {
upper = middle - 1;
}
}
}
findHoverIndexFromDataPoints (posX, series, last) {
var ps = series.datapoints.pointsize;
var initial = last*ps;
var len = series.datapoints.points.length;
for (var j = initial; j < len; j += ps) {
if ((!series.lines.steps && series.datapoints.points[initial] != null && series.datapoints.points[j] == null)
|| series.datapoints.points[j] > posX) {
return Math.max(j - ps, 0)/ps;
}
}
return j/ps - 1;
}
getHoverInfo (seriesList, pos) {
var i, series, value, hoverIndex, hoverDistance, pointTime, minDistance, minTime;
var last_value = 0;
var results = {
seriesHover: []
};
for (i = 0; i < seriesList.length; i++) {
series = seriesList[i];
hoverIndex = this.findHoverIndexFromData(pos.x, series);
if (series.data[hoverIndex] && series.data[hoverIndex][0]) {
hoverDistance = pos.x - series.data[hoverIndex][0];
pointTime = series.data[hoverIndex][0];
if (!minDistance
|| (hoverDistance >= 0 && (hoverDistance < minDistance || minDistance < 0))
|| (hoverDistance < 0 && hoverDistance > minDistance)) {
minDistance = hoverDistance;
minTime = pointTime;
}
if (series.stack) {
if (this.ctx.tooltipIndividual || !this.ctx.tooltipCumulative) {
value = series.data[hoverIndex][1];
} else {
last_value += series.data[hoverIndex][1];
value = last_value;
}
} else {
value = series.data[hoverIndex][1];
}
if (series.stack) {
hoverIndex = this.findHoverIndexFromDataPoints(pos.x, series, hoverIndex);
}
results.seriesHover.push({
value: value,
hoverIndex: hoverIndex,
color: series.dataKey.color,
label: series.dataKey.label,
time: pointTime,
distance: hoverDistance,
index: i
});
}
}
results.time = minTime;
return results;
}
pieDataRendered() {
for (var i = 0; i < this.ctx.pieTargetData.length; i++) {
var value = this.ctx.pieTargetData[i] ? this.ctx.pieTargetData[i] : 0;
this.ctx.pieRenderedData[i] = value;
if (!this.ctx.pieData[i].data[0]) {
this.ctx.pieData[i].data[0] = [0,0];
}
this.ctx.pieData[i].data[0][1] = value;
}
}
nextPieDataAnimation(start) {
if (start) {
this.finishPieDataAnimation();
this.ctx.pieAnimationStartTime = this.ctx.pieAnimationLastTime = Date.now();
for (var i = 0; i < this.ctx.data.length; i++) {
this.ctx.pieTargetData[i] = (this.ctx.data[i].data && this.ctx.data[i].data[0])
? this.ctx.data[i].data[0][1] : 0;
}
}
if (this.ctx.pieAnimationCaf) {
this.ctx.pieAnimationCaf();
this.ctx.pieAnimationCaf = null;
}
var self = this;
this.ctx.pieAnimationCaf = this.ctx.$scope.tbRaf(
function () {
self.onPieDataAnimation();
}
);
}
onPieDataAnimation() {
var time = Date.now();
var elapsed = time - this.ctx.pieAnimationLastTime;//this.ctx.pieAnimationStartTime;
var progress = (time - this.ctx.pieAnimationStartTime) / this.ctx.pieDataAnimationDuration;
if (progress >= 1) {
this.finishPieDataAnimation();
} else {
if (elapsed >= 40) {
for (var i = 0; i < this.ctx.pieTargetData.length; i++) {
var prevValue = this.ctx.pieRenderedData[i];
var targetValue = this.ctx.pieTargetData[i];
var value = prevValue + (targetValue - prevValue) * progress;
if (!this.ctx.pieData[i].data[0]) {
this.ctx.pieData[i].data[0] = [0,0];
}
this.ctx.pieData[i].data[0][1] = value;
}
this.ctx.plot.setData(this.ctx.pieData);
this.ctx.plot.draw();
this.ctx.pieAnimationLastTime = time;
}
this.nextPieDataAnimation(false);
}
}
finishPieDataAnimation() {
this.pieDataRendered();
this.ctx.plot.setData(this.ctx.pieData);
this.ctx.plot.draw();
}
}
/* eslint-enable angular/angularelement */