added widget layout styling

added basic system to render linear gauges (wip)

WebApp/src/components/component.ts

@@ -3,6 +3,10 @@ import m from 'mithril';
 export abstract class Component {
 	abstract view(vnode: m.Vnode): m.Children;
 	
+	constructor(vnode?: m.Vnode) {
+		
+	}
+	
 	oninit(vnode: m.Vnode) {}
 	
     oncreate(vnode: m.Vnode) {}

WebApp/src/components/widgets/clock.tsx

@@ -1,16 +1,20 @@
 import m from 'mithril';
-import { Component } from 'components/component'
+import { Widget } from 'components/widgets/widget';
 
 require("./clock.css");
 
-export default class Clock extends Component {
+export class Clock extends Widget {
+	constructor(vnode: any) {
+		super(vnode);
+	}
+	
 	view(vnode: m.Vnode<{}, {}>): m.Children {
 		var now = new Date();
 		var days = ['Dimanche', 'Lundi', 'Mardi', 'Mercredi', 'Jeudi', 'Vendredi', 'Samedi'];
 		var nextUpdateDelay = 61 - now.getSeconds();
 		setTimeout(() => m.redraw(), nextUpdateDelay * 1000);
 		
-		return <div class="clock">
+		return <div class="widget clock">
 			<div class="date">
 				<p class="day">{days[now.getDay()]}</p>
 				<p class="date">{('0'+now.getDate()).slice(-2) + '/' + ('0'+now.getMonth()).slice(-2)}</p>

WebApp/src/components/widgets/gauge-linear.css

@@ -0,0 +1,32 @@
+div.gauge-linear {
+	display: flex;
+	flex-direction: column;
+}
+
+div.gauge-linear p.value {
+	font-size: 2.3rem;
+	font-family: monospace;
+}
+
+div.gauge-linear span.unit {
+	font-size: 1.6rem;
+	font-family: initial;
+}
+
+rect.gauge-linear-bg {
+	fill: rgb(255,255,255);
+	stroke-width: 2;
+	stroke: rgb(0,0,0)
+}
+
+rect.gauge-linear-bar {
+	fill: rgb(230,230,230);
+	stroke-width: 1;
+	stroke: rgb(180,180,180)
+}
+
+rect.gauge-linear-bar.lit {
+	fill: rgb(180,180,180);
+	stroke-width: 1;
+	stroke: rgb(0,0,0)
+}

WebApp/src/components/widgets/gauge-linear.tsx

@@ -0,0 +1,71 @@
+import m from 'mithril';
+import { Widget } from 'components/widgets/widget';
+
+require('./gauge-linear.css');
+
+export class GaugeLinear extends Widget {
+	private bars: SVGRectElement[] = [];
+	
+	constructor(vnode: any) {
+		super(vnode);
+	}
+	
+	view(vnode: m.Vnode<{}, {}>): m.Children {
+		return <div class="widget gauge-linear" style={'flex: ' + this.widgetWidth}>
+			<p class="value">643<span class="unit">W</span></p>
+			<svg>
+			</svg>
+		</div>;
+	}
+	
+	createSvg(svgElement: SVGElement) {
+		let w = Math.round(svgElement.clientWidth);
+		let h = Math.round(svgElement.clientHeight);
+		
+		svgElement.setAttribute('viewBox', "0 0 "+w+" "+h);
+
+		let bg = document.createElementNS('http://www.w3.org/2000/svg', 'rect');
+		bg.setAttribute('width', w.toString());
+		bg.setAttribute('height', h.toString());
+		bg.classList.add('gauge-linear-bg');
+		svgElement.append(bg);
+		
+		let barHeight = 15;
+		const barGap = barHeight * 0.2;
+		let numBars = Math.round(h / (barHeight + barGap));
+		
+		let bh = (h - (numBars+1)*barGap) / numBars;
+		barHeight = Math.round(bh);
+		
+		for(let barIdx = 0; barIdx < numBars; ++barIdx) {
+			let bar = document.createElementNS('http://www.w3.org/2000/svg', 'rect');
+			bar.setAttribute('width', (w - barGap * 2).toString());
+			bar.setAttribute('height', barHeight.toString());
+			bar.classList.add('gauge-linear-bar');
+			bar.classList.toggle('lit', false);
+			
+			bar.setAttribute('x', barGap.toString());
+			bar.setAttribute('y', (h - barIdx * (bh+barGap) - barGap - barHeight).toString());
+			
+			svgElement.append(bar);
+			
+			this.bars.push(bar);
+		}
+	}
+	
+	renderGaugeRatio(ratio: number) {
+		let numBars = this.bars.length;
+		let litBars = Math.round(ratio * numBars);
+		console.log(litBars);
+		for(let barIdx = 0; barIdx < numBars; ++barIdx) {
+			let bar = this.bars[barIdx];
+			bar.classList.toggle('lit', barIdx < litBars);
+		}
+	}
+	
+	oncreate(vnode: any) {
+		let svgElement: SVGElement = vnode.dom.querySelector('svg');
+		this.createSvg(svgElement);
+		this.renderGaugeRatio(0.2);
+	}
+}

WebApp/src/components/widgets/widget.css

@@ -0,0 +1,3 @@
+div.widget svg {
+	flex: 1;
+}

WebApp/src/components/widgets/widget.ts

@@ -0,0 +1,19 @@
+import m from 'mithril';
+import { Component } from 'components/component'
+
+require('./widget.css');
+
+interface WidgetAttrs
+{
+	widgetWidth: number;
+}
+
+export abstract class Widget extends Component {
+	public widgetWidth = 1.0;
+	
+	constructor(vnode?: m.Vnode<WidgetAttrs>) {
+		super(vnode);
+		if(vnode.attrs.widgetWidth !== undefined)
+			this.widgetWidth = vnode.attrs.widgetWidth; 
+	}
+};

WebApp/src/layout.css

@@ -1,3 +1,13 @@
-/*html body {
-	font-size: 3rem;
-}*/
+html, html > body {
+	height: 100%;
+	width: 100%;
+}
+
+html > body {
+	display: flex;
+	flex-direction: column;
+}
+
+html > body > section {
+	flex: 1;
+}

WebApp/src/pages/dashboard/dashboard-page.css

@@ -0,0 +1,13 @@
+div.dashboard-page {
+	width: 100%;
+	height: 100%;
+}
+
+div.widgets-row {
+	display: flex;
+	flex-direction: row;
+}
+
+div.widget {
+	flex: 1;
+}

WebApp/src/pages/dashboard/dashboard-page.tsx

@@ -1,7 +1,11 @@
 import m from 'mithril';
 import { Page } from 'components/page';
 import { MonitorApi, Status } from 'monitor-api';
-import Clock from 'components/widgets/clock';
+
+import { Clock } from 'components/widgets/clock';
+import { GaugeLinear } from 'components/widgets/gauge-linear';
+
+require('./dashboard-page.css');
 
 export class DashboardPage extends Page {
 	status: Status = null;
@@ -29,7 +33,12 @@ export class DashboardPage extends Page {
 	view() {
 		return this.status
 			? <div class="dashboard-page">
-				<Clock/>
+				<div class="widgets-row">
+					<Clock/>
+				</div>
+				<div class="widgets-row" style="height: 40%">
+					<GaugeLinear widgetWidth={0.2} />
+				</div>
 			</div>
 			: <p>Chargement...</p>;
 	}

WebApp/webpack.config.js

@@ -41,6 +41,7 @@ module.exports = {
     }),
     new PurgecssPlugin({
       paths: glob.sync('./src/**/*',  { nodir: true }),
+      safelist: ['html', 'body']
     })
   ]
 };