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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,132 +1,129 @@ | ||
| import _ from 'underscore'; | ||
| import React, { createRef } from 'react'; | ||
| import React, { createRef, useState, useEffect, useCallback } from 'react'; | ||
|
|
||
| import './svgExporter'; // create handlers for SVG and PNG download buttons | ||
| import CollapsePreferences from './collapse_preferences'; | ||
|
|
||
| // Each instance of Grapher is added to this object once the component has been | ||
| // mounted. This is so that grapher can be iterated over and redrawn on window | ||
| // resize event. | ||
| var Graphers = {}; | ||
| import useDetectPrint from "react-detect-print"; | ||
|
|
||
| // Grapher is a function that takes a Graph class and returns a React component. | ||
| // This React component provides HTML boilerplate to add heading, to make the | ||
| // graphs collapsible, to redraw graphs when window is resized, and SVG and PNG | ||
| // export buttons and functionality. | ||
| export default function Grapher(Graph) { | ||
| return class extends React.Component { | ||
| constructor(props) { | ||
| super(props); | ||
| this.name = Graph.name(this.props); | ||
| this.collapsePreferences = new CollapsePreferences(this); | ||
| let isCollapsed = this.collapsePreferences.preferenceStoredAsCollapsed(); | ||
| this.state = { collapsed: Graph.canCollapse() && (this.props.collapsed || isCollapsed) }; | ||
| this.svgContainerRef = createRef(); | ||
| } | ||
| return function Component(props) { | ||
| const alwaysShowName = Graph.alwaysShowName === undefined ? false : Graph.alwaysShowName(); | ||
| const printing = useDetectPrint(); | ||
| const name = Graph.name(props); | ||
| const [width, setWidth] = useState(window.innerWidth); | ||
| const [collapsed, setCollapsed] = useState(false); | ||
| const svgContainerRef = createRef(); | ||
| let graph = null; | ||
|
|
||
| graphId() { | ||
| return Graph.graphId(this.props); | ||
| } | ||
| const graphId = () => "testing" | ||
|
|
||
| render() { | ||
| // Do not render when Graph.name() is null | ||
| if (Graph.name(this.props) === null) { | ||
| return null; | ||
| } else { | ||
| var printCss = this.state.collapsed ? ' print:hidden' : ''; | ||
| var cssClasses = Graph.className() + ' grapher' + printCss; | ||
| return ( | ||
| <div className={cssClasses}> | ||
| {this.header()} | ||
| {this.svgContainerJSX()} | ||
| </div> | ||
| ); | ||
| } | ||
| const graphLinksJSX = () => { | ||
| return ( | ||
| <div className="hit-links float-right text-right text-blue-300 h-4 print:hidden"> | ||
| <a href="#" className="btn-link text-sm text-seqblue hover:text-seqorange cursor-pointer export-to-svg"> | ||
| <i className="fa fa-download" /> SVG | ||
| </a> | ||
| <span className="line px-1">|</span> | ||
| <a href="#" className="btn-link text-sm text-seqblue hover:text-seqorange cursor-pointer export-to-png"> | ||
| <i className="fa fa-download" /> PNG | ||
| </a> | ||
| </div> | ||
| ); | ||
| } | ||
|
|
||
| header() { | ||
| const header = () => { | ||
| if(Graph.canCollapse()) { | ||
| return <div className="grapher-header pr-px"> | ||
| <h4 | ||
| className="inline-block pl-px m-0 caption cursor-pointer text-sm" | ||
| onClick={() => this.collapsePreferences.toggleCollapse()} | ||
| onClick={() => collapsePreferences.toggleCollapse()} | ||
| > | ||
| {this.collapsePreferences.renderCollapseIcon()} | ||
| <span className="print:hidden"> </span>{Graph.name(this.props)} | ||
| {collapsePreferences.renderCollapseIcon()} | ||
| <span className="print:hidden"> </span>{Graph.name(props)} | ||
| </h4> | ||
| {!this.state.collapsed && this.graphLinksJSX()} | ||
| {!collapsed && graphLinksJSX()} | ||
| </div>; | ||
| } else if (alwaysShowName) { | ||
| return <div className="grapher-histogram-header" style={{ position: 'relative' }}> | ||
| <h4 className="caption"> {Graph.name(props)}</h4> | ||
| <div className="pull-right" style={{ position: 'absolute', top: 0, right: 0 }}> | ||
| {!collapsed && graphLinksJSX()} | ||
| </div> | ||
| </div>; | ||
| } else { | ||
| return <div className="pr-px"> | ||
| {!this.state.collapsed && this.graphLinksJSX()} | ||
| {!collapsed && graphLinksJSX()} | ||
| </div>; | ||
| } | ||
| } | ||
|
|
||
| graphLinksJSX() { | ||
| return ( | ||
| <div className="hit-links float-right text-right text-blue-300 h-4 print:hidden"> | ||
| <a href="#" className="btn-link text-sm text-seqblue hover:text-seqorange cursor-pointer export-to-svg"> | ||
| <i className="fa fa-download" /> SVG | ||
| </a> | ||
| <span className="line px-1">|</span> | ||
| <a href="#" className="btn-link text-sm text-seqblue hover:text-seqorange cursor-pointer export-to-png"> | ||
| <i className="fa fa-download" /> PNG | ||
| </a> | ||
| </div> | ||
| ); | ||
| } | ||
|
|
||
| svgContainerJSX() { | ||
| const svgContainerJSX = () => { | ||
| var cssClasses = Graph.className() + ' svg-container hidden'; | ||
| if (!this.state.collapsed) cssClasses += ' !block'; | ||
| if (!collapsed) cssClasses += ' !block'; | ||
| return ( | ||
| <div | ||
| ref={this.svgContainerRef} | ||
| id={this.graphId()} | ||
| ref={svgContainerRef} | ||
| id={graphId()} | ||
| className={cssClasses} | ||
| ></div> | ||
| ); | ||
| } | ||
|
|
||
| componentDidMount() { | ||
| Graphers[this.graphId()] = this; | ||
|
|
||
| // Draw visualisation for the first time. Visualisations are | ||
| // redrawn when browser window is resized. | ||
| this.draw(); | ||
| } | ||
|
|
||
| componentDidUpdate() { | ||
| // Re-draw visualisation when the component change state. | ||
| this.draw(); | ||
| } | ||
| svgContainer() { | ||
| return $(this.svgContainerRef.current); | ||
| const svgContainer = () => { | ||
| return $(svgContainerRef.current); | ||
| } | ||
|
|
||
| draw() { | ||
| const draw = (printing = false) => { | ||
| let graphWidth = 'auto'; | ||
| if (printing) graphWidth = '900'; | ||
| // Clean slate. | ||
| this.svgContainer().empty(); | ||
| this.graph = null; | ||
| svgContainer().empty(); | ||
| graph = null; | ||
|
|
||
| // Draw if uncollapsed. | ||
| if (this.state.collapsed) { | ||
| return; | ||
| } | ||
| this.graph = new Graph(this.svgContainer(), this.props); | ||
| this.svgContainer() | ||
| if (collapsed) return; | ||
|
|
||
| svgContainer().width(graphWidth); | ||
| graph = new Graph(svgContainer(), props); | ||
| svgContainer() | ||
| .find('svg') | ||
| .attr('data-name', Graph.dataName(this.props)); | ||
| .attr('data-name', Graph.dataName(props)); | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| // Redraw if window resized. | ||
| $(window).resize( | ||
| _.debounce(function () { | ||
| _.each(Graphers, (grapher) => { | ||
| grapher.draw(); | ||
| }); | ||
| }, 125) | ||
| ); | ||
| useEffect(() => { | ||
| // Attach a debounced listener to handle window resize events | ||
| // Updates the width state with the current window width, throttled to run at most once every 125ms | ||
| const handleResize = _.debounce(() => setWidth(window.innerWidth), 125); | ||
| window.addEventListener("resize", handleResize); | ||
|
|
||
| const isCollapsed = collapsePreferences.preferenceStoredAsCollapsed(); | ||
| setCollapsed(Graph.canCollapse() && (props.collapsed || isCollapsed)) | ||
| draw(); | ||
|
|
||
| return () => window.removeEventListener("resize", handleResize) | ||
| }, []) | ||
|
|
||
| useEffect(() => { | ||
| draw(printing); | ||
| }, [printing, width]) | ||
|
|
||
| const collapsePreferences = new CollapsePreferences({name: name, collapsed: collapsed, setCollapsed: setCollapsed}, true); | ||
|
|
||
| if (Graph.name(props) === null) { | ||
| return(null); | ||
| } else { | ||
| const printCss = collapsed ? 'print:hidden' : ''; | ||
| const cssClasses = Graph.className() + ' grapher' + printCss; | ||
| return ( | ||
| <div className={cssClasses}> | ||
| {header()} | ||
| {svgContainerJSX()} | ||
| </div> | ||
| ) | ||
| } | ||
| } | ||
| } |
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