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Commit 190e977c authored by Michael Lunøe's avatar Michael Lunøe Committed by Natalia Tepluhina
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Use percentage for chart loader 

fix(chart/skeleton_loader):
use percentage to make chart dynamically flexible
and easier to understand
parent 04ea7d44
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app/assets/javascripts/vue_shared/components/resizable_chart/constants.js 0 → 100644
View file @ 190e977c
export const DEFAULT_RX = 0.4;
export const DEFAULT_BAR_WIDTH = 6;
export const DEFAULT_LABEL_WIDTH = 4;
export const DEFAULT_LABEL_HEIGHT = 5;
export const BAR_HEIGHTS = [5, 7, 9, 14, 21, 35, 50, 80];
export const GRID_YS = [30, 60, 90];
app/assets/javascripts/vue_shared/components/resizable_chart/skeleton_loader.vue 0 → 100644
View file @ 190e977c
<script>
import { GlSkeletonLoader } from '@gitlab/ui';
import {
DEFAULT_RX,
DEFAULT_BAR_WIDTH,
DEFAULT_LABEL_WIDTH,
DEFAULT_LABEL_HEIGHT,
BAR_HEIGHTS,
GRID_YS,
} from './constants';
export default {
components: {
GlSkeletonLoader,
},
props: {
barWidth: {
type: Number,
default: DEFAULT_BAR_WIDTH,
required: false,
},
labelWidth: {
type: Number,
default: DEFAULT_LABEL_WIDTH,
required: false,
},
labelHeight: {
type: Number,
default: DEFAULT_LABEL_HEIGHT,
required: false,
},
rx: {
type: Number,
default: DEFAULT_RX,
required: false,
},
// skeleton-loader will generate a unique key if not defined
uniqueKey: {
type: String,
default: undefined,
required: false,
},
},
computed: {
labelCentering() {
return (this.barWidth - this.labelWidth) / 2;
},
},
methods: {
getBarXPosition(index) {
const numberOfBars = this.$options.BAR_HEIGHTS.length;
const numberOfSpaces = numberOfBars + 1;
const spaceBetweenBars = (100 - numberOfSpaces * this.barWidth) / numberOfBars;
return (0.5 + index) * (this.barWidth + spaceBetweenBars);
},
},
BAR_HEIGHTS,
GRID_YS,
};
</script>
<template>
<gl-skeleton-loader :unique-key="uniqueKey">
<rect
v-for="(y, index) in $options.GRID_YS"
:key="`grid-${index}`"
data-testid="skeleton-chart-grid"
x="0"
:y="`${y}%`"
width="100%"
height="1px"
/>
<rect
v-for="(height, index) in $options.BAR_HEIGHTS"
:key="`bar-${index}`"
data-testid="skeleton-chart-bar"
:x="`${getBarXPosition(index)}%`"
:y="`${90 - height}%`"
:width="`${barWidth}%`"
:height="`${height}%`"
:rx="`${rx}%`"
/>
<rect
v-for="(height, index) in $options.BAR_HEIGHTS"
:key="`label-${index}`"
data-testid="skeleton-chart-label"
:x="`${labelCentering + getBarXPosition(index)}%`"
:y="`${100 - labelHeight}%`"
:width="`${labelWidth}%`"
:height="`${labelHeight}%`"
:rx="`${rx}%`"
/>
</gl-skeleton-loader>
</template>
spec/frontend/vue_shared/components/resizable_chart/__snapshots__/skeleton_loader_spec.js.snap 0 → 100644
View file @ 190e977c
// Jest Snapshot v1, https://goo.gl/fbAQLP
exports[`Resizable Skeleton Loader default setup renders the bars, labels, and grid with correct position, size, and rx percentages 1`] = `
<gl-skeleton-loader-stub
baseurl=""
height="130"
preserveaspectratio="xMidYMid meet"
width="400"
>
<rect
data-testid="skeleton-chart-grid"
height="1px"
width="100%"
x="0"
y="30%"
/>
<rect
data-testid="skeleton-chart-grid"
height="1px"
width="100%"
x="0"
y="60%"
/>
<rect
data-testid="skeleton-chart-grid"
height="1px"
width="100%"
x="0"
y="90%"
/>
<rect
data-testid="skeleton-chart-bar"
height="5%"
rx="0.4%"
width="6%"
x="5.875%"
y="85%"
/>
<rect
data-testid="skeleton-chart-bar"
height="7%"
rx="0.4%"
width="6%"
x="17.625%"
y="83%"
/>
<rect
data-testid="skeleton-chart-bar"
height="9%"
rx="0.4%"
width="6%"
x="29.375%"
y="81%"
/>
<rect
data-testid="skeleton-chart-bar"
height="14%"
rx="0.4%"
width="6%"
x="41.125%"
y="76%"
/>
<rect
data-testid="skeleton-chart-bar"
height="21%"
rx="0.4%"
width="6%"
x="52.875%"
y="69%"
/>
<rect
data-testid="skeleton-chart-bar"
height="35%"
rx="0.4%"
width="6%"
x="64.625%"
y="55%"
/>
<rect
data-testid="skeleton-chart-bar"
height="50%"
rx="0.4%"
width="6%"
x="76.375%"
y="40%"
/>
<rect
data-testid="skeleton-chart-bar"
height="80%"
rx="0.4%"
width="6%"
x="88.125%"
y="10%"
/>
<rect
data-testid="skeleton-chart-label"
height="5%"
rx="0.4%"
width="4%"
x="6.875%"
y="95%"
/>
<rect
data-testid="skeleton-chart-label"
height="5%"
rx="0.4%"
width="4%"
x="18.625%"
y="95%"
/>
<rect
data-testid="skeleton-chart-label"
height="5%"
rx="0.4%"
width="4%"
x="30.375%"
y="95%"
/>
<rect
data-testid="skeleton-chart-label"
height="5%"
rx="0.4%"
width="4%"
x="42.125%"
y="95%"
/>
<rect
data-testid="skeleton-chart-label"
height="5%"
rx="0.4%"
width="4%"
x="53.875%"
y="95%"
/>
<rect
data-testid="skeleton-chart-label"
height="5%"
rx="0.4%"
width="4%"
x="65.625%"
y="95%"
/>
<rect
data-testid="skeleton-chart-label"
height="5%"
rx="0.4%"
width="4%"
x="77.375%"
y="95%"
/>
<rect
data-testid="skeleton-chart-label"
height="5%"
rx="0.4%"
width="4%"
x="89.125%"
y="95%"
/>
</gl-skeleton-loader-stub>
`;
exports[`Resizable Skeleton Loader with custom settings renders the correct position, and size percentages for bars and labels with different settings 1`] = `
<gl-skeleton-loader-stub
baseurl=""
height="130"
preserveaspectratio="xMidYMid meet"
uniquekey=""
width="400"
>
<rect
data-testid="skeleton-chart-grid"
height="1px"
width="100%"
x="0"
y="30%"
/>
<rect
data-testid="skeleton-chart-grid"
height="1px"
width="100%"
x="0"
y="60%"
/>
<rect
data-testid="skeleton-chart-grid"
height="1px"
width="100%"
x="0"
y="90%"
/>
<rect
data-testid="skeleton-chart-bar"
height="5%"
rx="0.6%"
width="3%"
x="6.0625%"
y="85%"
/>
<rect
data-testid="skeleton-chart-bar"
height="7%"
rx="0.6%"
width="3%"
x="18.1875%"
y="83%"
/>
<rect
data-testid="skeleton-chart-bar"
height="9%"
rx="0.6%"
width="3%"
x="30.3125%"
y="81%"
/>
<rect
data-testid="skeleton-chart-bar"
height="14%"
rx="0.6%"
width="3%"
x="42.4375%"
y="76%"
/>
<rect
data-testid="skeleton-chart-bar"
height="21%"
rx="0.6%"
width="3%"
x="54.5625%"
y="69%"
/>
<rect
data-testid="skeleton-chart-bar"
height="35%"
rx="0.6%"
width="3%"
x="66.6875%"
y="55%"
/>
<rect
data-testid="skeleton-chart-bar"
height="50%"
rx="0.6%"
width="3%"
x="78.8125%"
y="40%"
/>
<rect
data-testid="skeleton-chart-bar"
height="80%"
rx="0.6%"
width="3%"
x="90.9375%"
y="10%"
/>
<rect
data-testid="skeleton-chart-label"
height="2%"
rx="0.6%"
width="7%"
x="4.0625%"
y="98%"
/>
<rect
data-testid="skeleton-chart-label"
height="2%"
rx="0.6%"
width="7%"
x="16.1875%"
y="98%"
/>
<rect
data-testid="skeleton-chart-label"
height="2%"
rx="0.6%"
width="7%"
x="28.3125%"
y="98%"
/>
<rect
data-testid="skeleton-chart-label"
height="2%"
rx="0.6%"
width="7%"
x="40.4375%"
y="98%"
/>
<rect
data-testid="skeleton-chart-label"
height="2%"
rx="0.6%"
width="7%"
x="52.5625%"
y="98%"
/>
<rect
data-testid="skeleton-chart-label"
height="2%"
rx="0.6%"
width="7%"
x="64.6875%"
y="98%"
/>
<rect
data-testid="skeleton-chart-label"
height="2%"
rx="0.6%"
width="7%"
x="76.8125%"
y="98%"
/>
<rect
data-testid="skeleton-chart-label"
height="2%"
rx="0.6%"
width="7%"
x="88.9375%"
y="98%"
/>
</gl-skeleton-loader-stub>
`;
spec/frontend/vue_shared/components/resizable_chart/skeleton_loader_spec.js 0 → 100644
View file @ 190e977c
import { shallowMount } from '@vue/test-utils';
import ChartSkeletonLoader from '~/vue_shared/components/resizable_chart/skeleton_loader.vue';
describe('Resizable Skeleton Loader', () => {
let wrapper;
const createComponent = (propsData = {}) => {
wrapper = shallowMount(ChartSkeletonLoader, {
propsData,
});
};
const verifyElementsPresence = () => {
const gridItems = wrapper.findAll('[data-testid="skeleton-chart-grid"]').wrappers;
const barItems = wrapper.findAll('[data-testid="skeleton-chart-bar"]').wrappers;
const labelItems = wrapper.findAll('[data-testid="skeleton-chart-label"]').wrappers;
expect(gridItems.length).toBe(3);
expect(barItems.length).toBe(8);
expect(labelItems.length).toBe(8);
};
afterEach(() => {
if (wrapper?.destroy) {
wrapper.destroy();
}
});
describe('default setup', () => {
beforeEach(() => {
createComponent({ uniqueKey: null });
});
it('renders the bars, labels, and grid with correct position, size, and rx percentages', () => {
expect(wrapper.element).toMatchSnapshot();
});
it('renders the correct number of grid items, bars, and labels', () => {
verifyElementsPresence();
});
});
describe('with custom settings', () => {
beforeEach(() => {
createComponent({ uniqueKey: '', rx: 0.6, barWidth: 3, labelWidth: 7, labelHeight: 2 });
});
it('renders the correct position, and size percentages for bars and labels with different settings', () => {
expect(wrapper.element).toMatchSnapshot();
});
it('renders the correct number of grid items, bars, and labels', () => {
verifyElementsPresence();
});
});
});
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