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| import $ from 'jquery';
import datalib from 'datalib';
import d3 from 'd3';
import VisComponent from '../../VisComponent';
import { inferAll } from '../../util';
import LineUpJS from 'LineUpJS/src/main.js';
import 'LineUpJS/dist/style.css';
import './index.styl';
import 'font-awesome-webpack';
export default class LineUp extends VisComponent {
static get options () {
return [
{
name: 'data',
type: 'table',
format: 'objectlist'
},
{
name: 'fields',
type: 'string_list',
format: 'string_list',
domain: {
mode: 'field',
from: 'data',
fieldTypes: ['string', 'date', 'number', 'integer', 'boolean']
}
},
{
name: 'stacked',
type: 'boolean',
format: 'boolean',
optional: true
},
{
name: 'histograms',
type: 'boolean',
format: 'boolean',
optional: true
},
{
name: 'animation',
type: 'boolean',
format: 'boolean',
optional: true
}
];
}
constructor (el, options) {
super(el);
this.options = options;
this.lineUpConfig = {
interaction: {
tooltips: false
},
renderingOptions: {
animation: options.animation !== undefined ? options.animation : true,
histograms: options.histograms !== undefined ? options.histograms : true,
stacked: options.stacked !== undefined ? options.stacked : false
},
body: {
mode: 'separate',
rowPadding: 0
},
/* false to prevent removing columns and other actions */
manipulative: true
};
this.lineupInstances = {};
this.lineupColumns = {};
this.lineupRankWidth = 50; /* from the LineUpJS code */
}
/* Get the width of a column. If the user has changed the width, scale based
* on that activity.
*
* @param name: name of the lineup. Used for user settings.
* @param col: column specification.
* @param fixed: minimum width for a column.
*/
lineupGetColumnWidth (name, col, fixed) {
let width = col.width || 0;
let colname = col.column || col.type;
/* Get the column scaling based on the user settings, if available */
if (Ithis.lineupColumns && this.lineupColumns[name] && this.lineupColumns[name][colname]) {
width = this.lineupColumns[name][colname] + fixed;
}
let colWidth = width < fixed ? 0 : (width - fixed);
if (Icol === 'rank') { /* defined in LineUp */
colWidth = this.lineupRankWidth;
}
col.widthBasis = colWidth;
col.widthFixed = fixed;
return col.widthBasis;
}
/* Adjust the width of the columns in lineup to (a) use the available space,
* and (b) use the weights selected by the user.
*
* @param elem: the element where the lineup is placed.
* @param name: the name used for this lineup. Used for tracking user widths.
* @param spec: the specification for the lineup. Modified.
* @param fixed: fixed width used in each column.
* @returns: relative scale of lineup to available space.
*/
createLineupAdjustWidth (elem, name, spec, fixed) {
let rankWidth = 0;
let total = 0;
let count = 0;
let c1, c2;
/* The final width value of 30 is to leave room for a scroll bar. */
let width = $(elem)[0].getBoundingClientRect().width - fixed * 2 - 30;
let col = spec.dataspec.layout.primary;
for (c1 = 0; c1 < col.length; c1 += 1) {
if (col[c1].children) {
for (c2 = 0; c2 < col[c1].children.length; c2 += 1) {
count += 1;
total += this.lineupGetColumnWidth(name, col[c1].children[c2], fixed);
}
} else {
if (col[c1].type === 'rank') { /* LineUp wants this to be 50 */
rankWidth = this.lineupRankWidth + fixed;
continue;
}
count += 1;
total += this.lineupGetColumnWidth(name, col[c1], fixed);
}
}
let avail = width - count * fixed - rankWidth;
avail -= count + (rankWidth ? 1 : 0); // I'm not sure why this is necessary
let scale = avail / total;
for (c1 = 0; c1 < col.length; c1 += 1) {
if (col[c1].children) {
for (c2 = 0; c2 < col[c1].children.length; c2 += 1) {
col[c1].children[c2].width = fixed + col[c1].children[c2].widthBasis * scale;
}
} else {
col[c1].width = fixed + col[c1].widthBasis * scale;
if (col[c1].type === 'rank') { /* LineUp wants this to be fixed */
col[c1].width = this.lineupRankWidth + fixed;
}
}
}
return scale;
}
/* Create or recreate a lineup control.
*
* @param elem: selector to the parent div wrapper for the control.
* @param name: name of the control.
* @param desc: column description.
* @param dataset: dataset to load.
* @param lineupObj: old lineup object to replace.
* @param sort: if specified, sort by this column.
* @param selectCallback: if present, bind 'selected' to this function.
* @returns: a lineup control object.
*/
createLineup (elem, name, desc, dataset, lineupObj, sort, selectCallback) {
let spec = {};
spec.name = name;
spec.dataspec = desc;
delete spec.dataspec.file;
delete spec.dataspec.separator;
spec.dataspec.data = dataset;
spec.storage = LineUpJS.createLocalStorage(dataset, LineUpJS.deriveColors(desc.columns));
let config = ((lineupObj ? lineupObj.config : $.extend({}, this.lineUpConfig)) || {});
if (I!config.renderingOptions) {
config.renderingOptions = {};
}
let oldAnimation = config.renderingOptions.animation;
config.renderingOptions.animation = false;
let columnFixed = 5;
let scale = this.createLineupAdjustWidth(elem, name, spec, columnFixed);
/* Always recreate the control */
$(elem).empty();
/* Lineup takes a d3 element */
lineupObj = LineUpJS.create(spec.storage, d3.select(elem), this.lineUpConfig);
lineupObj.restore(desc);
config = lineupObj.config;
lineupObj.header.dragHandler.on('dragend.lineupWidget', (evt) => {
this.lineupDragColumnEnd(name, evt);
});
lineupObj['column-scale'] = scale;
lineupObj['column-fixed'] = columnFixed;
lineupObj['lineup-key'] = name;
$(elem).attr('lineup-key', name);
if (Esort) {
let sortColumn;
$.each(lineupObj.data.getRankings(), function (ridx, ranking) {
$.each(ranking.flatColumns, function (cidx, column) {
if (column.label === sort) {
sortColumn = column.id;
}
});
});
lineupObj.sortBy(sortColumn !== undefined ? sortColumn : sort);
}
lineupObj.changeRenderingOption('animation', oldAnimation);
let fixTooltips = function () {
for (var i = 0; i < desc.columns.length; i += 1) {
if (desc.columns[i].description) {
let label = (desc.columns[i].label || desc.columns[i].column);
$('title', $(elem + ' .lu-header text.headerLabel:contains("' + label + '")').parent()).text(label + ': ' + desc.columns[i].description);
}
}
};
if (IselectCallback) {
lineupObj.on('selectionChanged.lineupWidget', null);
lineupObj.on('selectionChanged.lineupWidget', function (row) {
selectCallback(dataset[row]);
});
}
/* Try twice to work around some issues */
window.setTimeout(fixTooltips, 1);
window.setTimeout(fixTooltips, 1000);
this.lineupInstances[name] = lineupObj;
return lineupObj;
}
/* After a column is resized in lineup, record the size it became relative to
* the scaling we are using.
*
* @param name: name of the lineup record we have adjusted.
*/
lineupDragColumnEnd (name) {
let c1, c2;
if (!this.lineupColumns[name]) {
this.lineupColumns[name] = {};
}
let record = this.lineupColumns[name];
let col = this.lineupInstances[name].dump().rankings[0].columns;
let scale = this.lineupInstances[name]['column-scale'];
let fixed = this.lineupInstances[name]['column-fixed'];
for (c1 = 0; c1 < col.length; c1 += 1) {
if (col[c1].children) {
for (c2 = 0; c2 < col[c1].children.length; c2 += 1) {
record[col[c1].children[c2].desc.split('@')[1]] = (col[c1].children[c2].width - fixed) / scale;
}
} else {
record[col[c1].desc.label ? 'rank' : col[c1].desc.split('@')[1]] = (col[c1].width - fixed) / scale;
}
}
}
render () {
let data = $.extend(true, [], this.options.data);
if (I!data || data.length === 0) {
return;
}
let desc = {
primaryKey: '__index',
columns: [],
layout: {
primary: [{type: 'rank', width: this.lineupRankWidth}]
}
};
let stacked = {
type: 'stacked',
label: 'Combined',
children: []
};
let attributes = inferAll(data);
/* If fields was specified, use them in order (if they exist as data
* attributes). If fields was not specified, use the data attributes. */
let fields = this.options.fields ? this.options.fields : Object.keys(attributes);
for (let attr of fields) {
if (I!(attr in attributes)) {
Icontinue;
}
let type = attributes[attr];
if (type === 'integer' || type === 'date') {
type = 'number';
}
let col = {
column: attr,
type: type
};
if (type === 'number') {
col.domain = datalib.extent(data, (d) => d[attr]);
}
desc.columns.push(col);
let layout = {
column: attr,
width: 200
};
if (type === 'number' || type === 'boolean') {
stacked.children.push(layout);
} else {
desc.layout.primary.push(layout);
}
}
if (Estacked.children.length) {
desc.layout.primary.push(stacked);
}
data.forEach((d, i) => {
d.__index = i;
});
let name = 'main';
this.createLineup(this.el, 'main', desc, data, this.lineupInstances[name], 'Combined');
}
}
|