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713 lines
18 KiB
713 lines
18 KiB
/**
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* Highcharts Drilldown plugin
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*
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* Author: Torstein Honsi
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* License: MIT License
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*
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* Demo: http://jsfiddle.net/highcharts/Vf3yT/
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*/
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/*global Highcharts,HighchartsAdapter*/
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(function (H) {
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"use strict";
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var noop = function () {},
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defaultOptions = H.getOptions(),
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each = H.each,
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extend = H.extend,
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format = H.format,
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pick = H.pick,
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wrap = H.wrap,
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Chart = H.Chart,
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seriesTypes = H.seriesTypes,
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PieSeries = seriesTypes.pie,
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ColumnSeries = seriesTypes.column,
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Tick = H.Tick,
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fireEvent = HighchartsAdapter.fireEvent,
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inArray = HighchartsAdapter.inArray,
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ddSeriesId = 1;
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// Utilities
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/*
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* Return an intermediate color between two colors, according to pos where 0
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* is the from color and 1 is the to color. This method is copied from ColorAxis.js
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* and should always be kept updated, until we get AMD support.
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*/
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function tweenColors(from, to, pos) {
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// Check for has alpha, because rgba colors perform worse due to lack of
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// support in WebKit.
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var hasAlpha,
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ret;
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// Unsupported color, return to-color (#3920)
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if (!to.rgba.length || !from.rgba.length) {
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ret = to.raw || 'none';
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// Interpolate
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} else {
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from = from.rgba;
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to = to.rgba;
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hasAlpha = (to[3] !== 1 || from[3] !== 1);
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ret = (hasAlpha ? 'rgba(' : 'rgb(') +
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Math.round(to[0] + (from[0] - to[0]) * (1 - pos)) + ',' +
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Math.round(to[1] + (from[1] - to[1]) * (1 - pos)) + ',' +
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Math.round(to[2] + (from[2] - to[2]) * (1 - pos)) +
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(hasAlpha ? (',' + (to[3] + (from[3] - to[3]) * (1 - pos))) : '') + ')';
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}
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return ret;
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}
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/**
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* Handle animation of the color attributes directly
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*/
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each(['fill', 'stroke'], function (prop) {
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HighchartsAdapter.addAnimSetter(prop, function (fx) {
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fx.elem.attr(prop, tweenColors(H.Color(fx.start), H.Color(fx.end), fx.pos));
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});
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});
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// Add language
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extend(defaultOptions.lang, {
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drillUpText: '◁ Back to {series.name}'
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});
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defaultOptions.drilldown = {
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activeAxisLabelStyle: {
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cursor: 'pointer',
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color: '#0d233a',
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fontWeight: 'bold',
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textDecoration: 'underline'
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},
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activeDataLabelStyle: {
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cursor: 'pointer',
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color: '#0d233a',
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fontWeight: 'bold',
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textDecoration: 'underline'
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},
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animation: {
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duration: 500
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},
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drillUpButton: {
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position: {
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align: 'right',
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x: -10,
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y: 10
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}
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// relativeTo: 'plotBox'
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// theme
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}
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};
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/**
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* A general fadeIn method
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*/
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H.SVGRenderer.prototype.Element.prototype.fadeIn = function (animation) {
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this
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.attr({
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opacity: 0.1,
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visibility: 'inherit'
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})
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.animate({
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opacity: pick(this.newOpacity, 1) // newOpacity used in maps
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}, animation || {
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duration: 250
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});
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};
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Chart.prototype.addSeriesAsDrilldown = function (point, ddOptions) {
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this.addSingleSeriesAsDrilldown(point, ddOptions);
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this.applyDrilldown();
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};
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Chart.prototype.addSingleSeriesAsDrilldown = function (point, ddOptions) {
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var oldSeries = point.series,
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xAxis = oldSeries.xAxis,
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yAxis = oldSeries.yAxis,
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newSeries,
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color = point.color || oldSeries.color,
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pointIndex,
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levelSeries = [],
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levelSeriesOptions = [],
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level,
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levelNumber,
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last;
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if (!this.drilldownLevels) {
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this.drilldownLevels = [];
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}
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levelNumber = oldSeries.options._levelNumber || 0;
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// See if we can reuse the registered series from last run
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last = this.drilldownLevels[this.drilldownLevels.length - 1];
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if (last && last.levelNumber !== levelNumber) {
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last = undefined;
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}
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ddOptions = extend({
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color: color,
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_ddSeriesId: ddSeriesId++
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}, ddOptions);
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pointIndex = inArray(point, oldSeries.points);
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// Record options for all current series
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each(oldSeries.chart.series, function (series) {
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if (series.xAxis === xAxis && !series.isDrilling) {
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series.options._ddSeriesId = series.options._ddSeriesId || ddSeriesId++;
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series.options._colorIndex = series.userOptions._colorIndex;
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series.options._levelNumber = series.options._levelNumber || levelNumber; // #3182
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if (last) {
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levelSeries = last.levelSeries;
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levelSeriesOptions = last.levelSeriesOptions;
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} else {
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levelSeries.push(series);
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levelSeriesOptions.push(series.options);
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}
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}
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});
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// Add a record of properties for each drilldown level
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level = {
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levelNumber: levelNumber,
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seriesOptions: oldSeries.options,
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levelSeriesOptions: levelSeriesOptions,
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levelSeries: levelSeries,
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shapeArgs: point.shapeArgs,
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bBox: point.graphic ? point.graphic.getBBox() : {}, // no graphic in line series with markers disabled
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color: color,
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lowerSeriesOptions: ddOptions,
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pointOptions: oldSeries.options.data[pointIndex],
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pointIndex: pointIndex,
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oldExtremes: {
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xMin: xAxis && xAxis.userMin,
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xMax: xAxis && xAxis.userMax,
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yMin: yAxis && yAxis.userMin,
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yMax: yAxis && yAxis.userMax
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}
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};
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// Push it to the lookup array
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this.drilldownLevels.push(level);
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newSeries = level.lowerSeries = this.addSeries(ddOptions, false);
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newSeries.options._levelNumber = levelNumber + 1;
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if (xAxis) {
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xAxis.oldPos = xAxis.pos;
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xAxis.userMin = xAxis.userMax = null;
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yAxis.userMin = yAxis.userMax = null;
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}
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// Run fancy cross-animation on supported and equal types
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if (oldSeries.type === newSeries.type) {
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newSeries.animate = newSeries.animateDrilldown || noop;
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newSeries.options.animation = true;
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}
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};
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Chart.prototype.applyDrilldown = function () {
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var drilldownLevels = this.drilldownLevels,
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levelToRemove;
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if (drilldownLevels && drilldownLevels.length > 0) { // #3352, async loading
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levelToRemove = drilldownLevels[drilldownLevels.length - 1].levelNumber;
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each(this.drilldownLevels, function (level) {
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if (level.levelNumber === levelToRemove) {
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each(level.levelSeries, function (series) {
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if (series.options && series.options._levelNumber === levelToRemove) { // Not removed, not added as part of a multi-series drilldown
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series.remove(false);
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}
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});
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}
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});
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}
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this.redraw();
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this.showDrillUpButton();
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};
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Chart.prototype.getDrilldownBackText = function () {
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var drilldownLevels = this.drilldownLevels,
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lastLevel;
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if (drilldownLevels && drilldownLevels.length > 0) { // #3352, async loading
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lastLevel = drilldownLevels[drilldownLevels.length - 1];
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lastLevel.series = lastLevel.seriesOptions;
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return format(this.options.lang.drillUpText, lastLevel);
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}
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};
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Chart.prototype.showDrillUpButton = function () {
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var chart = this,
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backText = this.getDrilldownBackText(),
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buttonOptions = chart.options.drilldown.drillUpButton,
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attr,
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states;
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if (!this.drillUpButton) {
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attr = buttonOptions.theme;
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states = attr && attr.states;
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this.drillUpButton = this.renderer.button(
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backText,
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null,
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null,
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function () {
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chart.drillUp();
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},
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attr,
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states && states.hover,
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states && states.select
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)
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.attr({
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align: buttonOptions.position.align,
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zIndex: 9
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})
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.add()
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.align(buttonOptions.position, false, buttonOptions.relativeTo || 'plotBox');
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} else {
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this.drillUpButton.attr({
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text: backText
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})
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.align();
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}
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};
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Chart.prototype.drillUp = function () {
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var chart = this,
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drilldownLevels = chart.drilldownLevels,
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levelNumber = drilldownLevels[drilldownLevels.length - 1].levelNumber,
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i = drilldownLevels.length,
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chartSeries = chart.series,
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seriesI,
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level,
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oldSeries,
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newSeries,
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oldExtremes,
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addSeries = function (seriesOptions) {
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var addedSeries;
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each(chartSeries, function (series) {
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if (series.options._ddSeriesId === seriesOptions._ddSeriesId) {
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addedSeries = series;
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}
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});
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addedSeries = addedSeries || chart.addSeries(seriesOptions, false);
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if (addedSeries.type === oldSeries.type && addedSeries.animateDrillupTo) {
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addedSeries.animate = addedSeries.animateDrillupTo;
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}
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if (seriesOptions === level.seriesOptions) {
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newSeries = addedSeries;
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}
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};
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while (i--) {
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level = drilldownLevels[i];
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if (level.levelNumber === levelNumber) {
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drilldownLevels.pop();
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// Get the lower series by reference or id
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oldSeries = level.lowerSeries;
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if (!oldSeries.chart) { // #2786
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seriesI = chartSeries.length; // #2919
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while (seriesI--) {
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if (chartSeries[seriesI].options.id === level.lowerSeriesOptions.id &&
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chartSeries[seriesI].options._levelNumber === levelNumber + 1) { // #3867
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oldSeries = chartSeries[seriesI];
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break;
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}
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}
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}
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oldSeries.xData = []; // Overcome problems with minRange (#2898)
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each(level.levelSeriesOptions, addSeries);
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fireEvent(chart, 'drillup', { seriesOptions: level.seriesOptions });
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if (newSeries.type === oldSeries.type) {
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newSeries.drilldownLevel = level;
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newSeries.options.animation = chart.options.drilldown.animation;
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if (oldSeries.animateDrillupFrom && oldSeries.chart) { // #2919
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oldSeries.animateDrillupFrom(level);
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}
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}
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newSeries.options._levelNumber = levelNumber;
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oldSeries.remove(false);
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// Reset the zoom level of the upper series
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if (newSeries.xAxis) {
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oldExtremes = level.oldExtremes;
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newSeries.xAxis.setExtremes(oldExtremes.xMin, oldExtremes.xMax, false);
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newSeries.yAxis.setExtremes(oldExtremes.yMin, oldExtremes.yMax, false);
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}
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}
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}
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this.redraw();
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if (this.drilldownLevels.length === 0) {
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this.drillUpButton = this.drillUpButton.destroy();
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} else {
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this.drillUpButton.attr({
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text: this.getDrilldownBackText()
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})
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.align();
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}
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this.ddDupes.length = []; // #3315
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};
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ColumnSeries.prototype.supportsDrilldown = true;
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/**
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* When drilling up, keep the upper series invisible until the lower series has
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* moved into place
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*/
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ColumnSeries.prototype.animateDrillupTo = function (init) {
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if (!init) {
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var newSeries = this,
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level = newSeries.drilldownLevel;
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each(this.points, function (point) {
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if (point.graphic) { // #3407
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point.graphic.hide();
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}
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if (point.dataLabel) {
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point.dataLabel.hide();
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}
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if (point.connector) {
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point.connector.hide();
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}
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});
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// Do dummy animation on first point to get to complete
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setTimeout(function () {
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if (newSeries.points) { // May be destroyed in the meantime, #3389
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each(newSeries.points, function (point, i) {
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// Fade in other points
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var verb = i === (level && level.pointIndex) ? 'show' : 'fadeIn',
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inherit = verb === 'show' ? true : undefined;
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if (point.graphic) { // #3407
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point.graphic[verb](inherit);
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}
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if (point.dataLabel) {
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point.dataLabel[verb](inherit);
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}
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if (point.connector) {
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point.connector[verb](inherit);
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}
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});
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}
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}, Math.max(this.chart.options.drilldown.animation.duration - 50, 0));
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// Reset
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this.animate = noop;
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}
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};
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ColumnSeries.prototype.animateDrilldown = function (init) {
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var series = this,
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drilldownLevels = this.chart.drilldownLevels,
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animateFrom,
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animationOptions = this.chart.options.drilldown.animation,
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xAxis = this.xAxis;
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if (!init) {
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each(drilldownLevels, function (level) {
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if (series.options._ddSeriesId === level.lowerSeriesOptions._ddSeriesId) {
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animateFrom = level.shapeArgs;
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animateFrom.fill = level.color;
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}
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});
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animateFrom.x += (pick(xAxis.oldPos, xAxis.pos) - xAxis.pos);
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each(this.points, function (point) {
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if (point.graphic) {
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point.graphic
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.attr(animateFrom)
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.animate(
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extend(point.shapeArgs, { fill: point.color }),
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animationOptions
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);
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}
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if (point.dataLabel) {
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point.dataLabel.fadeIn(animationOptions);
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}
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});
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this.animate = null;
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}
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};
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/**
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* When drilling up, pull out the individual point graphics from the lower series
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* and animate them into the origin point in the upper series.
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*/
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ColumnSeries.prototype.animateDrillupFrom = function (level) {
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var animationOptions = this.chart.options.drilldown.animation,
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group = this.group,
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series = this;
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// Cancel mouse events on the series group (#2787)
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each(series.trackerGroups, function (key) {
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if (series[key]) { // we don't always have dataLabelsGroup
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series[key].on('mouseover');
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}
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});
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delete this.group;
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each(this.points, function (point) {
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var graphic = point.graphic,
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complete = function () {
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graphic.destroy();
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if (group) {
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group = group.destroy();
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}
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};
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if (graphic) {
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delete point.graphic;
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if (animationOptions) {
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graphic.animate(
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extend(level.shapeArgs, { fill: level.color }),
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H.merge(animationOptions, { complete: complete })
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);
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} else {
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graphic.attr(level.shapeArgs);
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complete();
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}
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}
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});
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};
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if (PieSeries) {
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extend(PieSeries.prototype, {
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supportsDrilldown: true,
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animateDrillupTo: ColumnSeries.prototype.animateDrillupTo,
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animateDrillupFrom: ColumnSeries.prototype.animateDrillupFrom,
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animateDrilldown: function (init) {
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var level = this.chart.drilldownLevels[this.chart.drilldownLevels.length - 1],
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animationOptions = this.chart.options.drilldown.animation,
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animateFrom = level.shapeArgs,
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start = animateFrom.start,
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angle = animateFrom.end - start,
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startAngle = angle / this.points.length;
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if (!init) {
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each(this.points, function (point, i) {
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point.graphic
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.attr(H.merge(animateFrom, {
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start: start + i * startAngle,
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end: start + (i + 1) * startAngle,
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fill: level.color
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}))[animationOptions ? 'animate' : 'attr'](
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extend(point.shapeArgs, { fill: point.color }),
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animationOptions
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);
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});
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this.animate = null;
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}
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}
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});
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}
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H.Point.prototype.doDrilldown = function (_holdRedraw, category) {
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var series = this.series,
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chart = series.chart,
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drilldown = chart.options.drilldown,
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i = (drilldown.series || []).length,
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seriesOptions;
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if (!chart.ddDupes) {
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chart.ddDupes = [];
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}
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while (i-- && !seriesOptions) {
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if (drilldown.series[i].id === this.drilldown && inArray(this.drilldown, chart.ddDupes) === -1) {
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seriesOptions = drilldown.series[i];
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chart.ddDupes.push(this.drilldown);
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}
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}
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// Fire the event. If seriesOptions is undefined, the implementer can check for
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// seriesOptions, and call addSeriesAsDrilldown async if necessary.
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fireEvent(chart, 'drilldown', {
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point: this,
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seriesOptions: seriesOptions,
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category: category,
|
|
points: category !== undefined && this.series.xAxis.ddPoints[category].slice(0)
|
|
});
|
|
|
|
if (seriesOptions) {
|
|
if (_holdRedraw) {
|
|
chart.addSingleSeriesAsDrilldown(this, seriesOptions);
|
|
} else {
|
|
chart.addSeriesAsDrilldown(this, seriesOptions);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Drill down to a given category. This is the same as clicking on an axis label.
|
|
*/
|
|
H.Axis.prototype.drilldownCategory = function (x) {
|
|
var key,
|
|
point,
|
|
ddPointsX = this.ddPoints[x];
|
|
for (key in ddPointsX) {
|
|
point = ddPointsX[key];
|
|
if (point && point.series && point.series.visible && point.doDrilldown) { // #3197
|
|
point.doDrilldown(true, x);
|
|
}
|
|
}
|
|
this.chart.applyDrilldown();
|
|
};
|
|
|
|
/**
|
|
* Create and return a collection of points associated with the X position. Reset it for each level.
|
|
*/
|
|
H.Axis.prototype.getDDPoints = function (x, levelNumber) {
|
|
var ddPoints = this.ddPoints;
|
|
if (!ddPoints) {
|
|
this.ddPoints = ddPoints = {};
|
|
}
|
|
if (!ddPoints[x]) {
|
|
ddPoints[x] = [];
|
|
}
|
|
if (ddPoints[x].levelNumber !== levelNumber) {
|
|
ddPoints[x].length = 0; // reset
|
|
}
|
|
return ddPoints[x];
|
|
};
|
|
|
|
|
|
/**
|
|
* Make a tick label drillable, or remove drilling on update
|
|
*/
|
|
Tick.prototype.drillable = function () {
|
|
var pos = this.pos,
|
|
label = this.label,
|
|
axis = this.axis,
|
|
ddPointsX = axis.ddPoints && axis.ddPoints[pos];
|
|
|
|
if (label && ddPointsX && ddPointsX.length) {
|
|
if (!label.basicStyles) {
|
|
label.basicStyles = H.merge(label.styles);
|
|
}
|
|
label
|
|
.addClass('highcharts-drilldown-axis-label')
|
|
.css(axis.chart.options.drilldown.activeAxisLabelStyle)
|
|
.on('click', function () {
|
|
axis.drilldownCategory(pos);
|
|
});
|
|
|
|
} else if (label && label.basicStyles) {
|
|
label.styles = {}; // reset for full overwrite of styles
|
|
label.css(label.basicStyles);
|
|
label.on('click', null); // #3806
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Always keep the drillability updated (#3951)
|
|
*/
|
|
wrap(Tick.prototype, 'addLabel', function (proceed) {
|
|
proceed.call(this);
|
|
this.drillable();
|
|
});
|
|
|
|
|
|
/**
|
|
* On initialization of each point, identify its label and make it clickable. Also, provide a
|
|
* list of points associated to that label.
|
|
*/
|
|
wrap(H.Point.prototype, 'init', function (proceed, series, options, x) {
|
|
var point = proceed.call(this, series, options, x),
|
|
xAxis = series.xAxis,
|
|
tick = xAxis && xAxis.ticks[x],
|
|
ddPointsX = xAxis && xAxis.getDDPoints(x, series.options._levelNumber);
|
|
|
|
if (point.drilldown) {
|
|
|
|
// Add the click event to the point
|
|
H.addEvent(point, 'click', function () {
|
|
if (series.xAxis && series.chart.options.drilldown.allowPointDrilldown === false) {
|
|
series.xAxis.drilldownCategory(x);
|
|
} else {
|
|
point.doDrilldown();
|
|
}
|
|
});
|
|
/*wrap(point, 'importEvents', function (proceed) { // wrapping importEvents makes point.click event work
|
|
if (!this.hasImportedEvents) {
|
|
proceed.call(this);
|
|
H.addEvent(this, 'click', function () {
|
|
this.doDrilldown();
|
|
});
|
|
}
|
|
});*/
|
|
|
|
|
|
// Register drilldown points on this X value
|
|
if (ddPointsX) {
|
|
ddPointsX.push(point);
|
|
ddPointsX.levelNumber = series.options._levelNumber;
|
|
}
|
|
|
|
}
|
|
|
|
// Add or remove click handler and style on the tick label
|
|
if (tick) {
|
|
tick.drillable();
|
|
}
|
|
|
|
return point;
|
|
});
|
|
|
|
wrap(H.Series.prototype, 'drawDataLabels', function (proceed) {
|
|
var css = this.chart.options.drilldown.activeDataLabelStyle;
|
|
|
|
proceed.call(this);
|
|
|
|
each(this.points, function (point) {
|
|
if (point.drilldown && point.dataLabel) {
|
|
point.dataLabel
|
|
.attr({
|
|
'class': 'highcharts-drilldown-data-label'
|
|
})
|
|
.css(css);
|
|
}
|
|
});
|
|
});
|
|
|
|
// Mark the trackers with a pointer
|
|
var type,
|
|
drawTrackerWrapper = function (proceed) {
|
|
proceed.call(this);
|
|
each(this.points, function (point) {
|
|
if (point.drilldown && point.graphic) {
|
|
point.graphic
|
|
.attr({
|
|
'class': 'highcharts-drilldown-point'
|
|
})
|
|
.css({ cursor: 'pointer' });
|
|
}
|
|
});
|
|
};
|
|
for (type in seriesTypes) {
|
|
if (seriesTypes[type].prototype.supportsDrilldown) {
|
|
wrap(seriesTypes[type].prototype, 'drawTracker', drawTrackerWrapper);
|
|
}
|
|
}
|
|
|
|
}(Highcharts));
|