rudeshark.net/src/client/app/common/views/widgets/server.cpu-memory.vue

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<template>
<div class="cpu-memory">
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<svg :viewBox="`0 0 ${ viewBoxX } ${ viewBoxY }`">
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<defs>
<linearGradient :id="cpuGradientId" x1="0" x2="0" y1="1" y2="0">
<stop offset="0%" stop-color="hsl(180, 80%, 70%)"></stop>
<stop offset="100%" stop-color="hsl(0, 80%, 70%)"></stop>
</linearGradient>
<mask :id="cpuMaskId" x="0" y="0" :width="viewBoxX" :height="viewBoxY">
<polygon
:points="cpuPolygonPoints"
fill="#fff"
fill-opacity="0.5"/>
<polyline
:points="cpuPolylinePoints"
fill="none"
stroke="#fff"
stroke-width="1"/>
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<circle
:cx="cpuHeadX"
:cy="cpuHeadY"
r="1.5"
fill="#fff"/>
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</mask>
</defs>
<rect
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x="-2" y="-2"
:width="viewBoxX + 4" :height="viewBoxY + 4"
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:style="`stroke: none; fill: url(#${ cpuGradientId }); mask: url(#${ cpuMaskId })`"/>
<text x="1" y="5">CPU <tspan>{{ cpuP }}%</tspan></text>
</svg>
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<svg :viewBox="`0 0 ${ viewBoxX } ${ viewBoxY }`">
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<defs>
<linearGradient :id="memGradientId" x1="0" x2="0" y1="1" y2="0">
<stop offset="0%" stop-color="hsl(180, 80%, 70%)"></stop>
<stop offset="100%" stop-color="hsl(0, 80%, 70%)"></stop>
</linearGradient>
<mask :id="memMaskId" x="0" y="0" :width="viewBoxX" :height="viewBoxY">
<polygon
:points="memPolygonPoints"
fill="#fff"
fill-opacity="0.5"/>
<polyline
:points="memPolylinePoints"
fill="none"
stroke="#fff"
stroke-width="1"/>
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<circle
:cx="memHeadX"
:cy="memHeadY"
r="1.5"
fill="#fff"/>
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</mask>
</defs>
<rect
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x="-2" y="-2"
:width="viewBoxX + 4" :height="viewBoxY + 4"
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:style="`stroke: none; fill: url(#${ memGradientId }); mask: url(#${ memMaskId })`"/>
<text x="1" y="5">MEM <tspan>{{ memP }}%</tspan></text>
</svg>
</div>
</template>
<script lang="ts">
import Vue from 'vue';
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import * as uuid from 'uuid';
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export default Vue.extend({
props: ['connection'],
data() {
return {
viewBoxX: 50,
viewBoxY: 30,
stats: [],
cpuGradientId: uuid(),
cpuMaskId: uuid(),
memGradientId: uuid(),
memMaskId: uuid(),
cpuPolylinePoints: '',
memPolylinePoints: '',
cpuPolygonPoints: '',
memPolygonPoints: '',
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cpuHeadX: null,
cpuHeadY: null,
memHeadX: null,
memHeadY: null,
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cpuP: '',
memP: ''
};
},
mounted() {
this.connection.on('stats', this.onStats);
this.connection.on('statsLog', this.onStatsLog);
this.connection.send({
type: 'requestLog',
id: Math.random().toString()
});
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},
beforeDestroy() {
this.connection.off('stats', this.onStats);
this.connection.off('statsLog', this.onStatsLog);
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},
methods: {
onStats(stats) {
this.stats.push(stats);
if (this.stats.length > 50) this.stats.shift();
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const cpuPolylinePoints = this.stats.map((s, i) => [this.viewBoxX - ((this.stats.length - 1) - i), (1 - s.cpu_usage) * this.viewBoxY]);
const memPolylinePoints = this.stats.map((s, i) => [this.viewBoxX - ((this.stats.length - 1) - i), (1 - (s.mem.used / s.mem.total)) * this.viewBoxY]);
this.cpuPolylinePoints = cpuPolylinePoints.map(xy => `${xy[0]},${xy[1]}`).join(' ');
this.memPolylinePoints = memPolylinePoints.map(xy => `${xy[0]},${xy[1]}`).join(' ');
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this.cpuPolygonPoints = `${this.viewBoxX - (this.stats.length - 1)},${this.viewBoxY} ${this.cpuPolylinePoints} ${this.viewBoxX},${this.viewBoxY}`;
this.memPolygonPoints = `${this.viewBoxX - (this.stats.length - 1)},${this.viewBoxY} ${this.memPolylinePoints} ${this.viewBoxX},${this.viewBoxY}`;
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this.cpuHeadX = cpuPolylinePoints[cpuPolylinePoints.length - 1][0];
this.cpuHeadY = cpuPolylinePoints[cpuPolylinePoints.length - 1][1];
this.memHeadX = memPolylinePoints[memPolylinePoints.length - 1][0];
this.memHeadY = memPolylinePoints[memPolylinePoints.length - 1][1];
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this.cpuP = (stats.cpu_usage * 100).toFixed(0);
this.memP = (stats.mem.used / stats.mem.total * 100).toFixed(0);
},
onStatsLog(statsLog) {
statsLog.reverse().forEach(stats => this.onStats(stats));
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}
}
});
</script>
<style lang="stylus" scoped>
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root(isDark)
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> svg
display block
padding 10px
width 50%
float left
&:first-child
padding-right 5px
&:last-child
padding-left 5px
> text
font-size 5px
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fill isDark ? rgba(#fff, 0.55) : rgba(#000, 0.55)
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> tspan
opacity 0.5
&:after
content ""
display block
clear both
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.cpu-memory[data-darkmode]
root(true)
.cpu-memory:not([data-darkmode])
root(false)
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</style>