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Add lightweight chart indicators #188

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139 changes: 103 additions & 36 deletions src/components/trade/chart/ChartBar.svelte
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Original file line number Diff line number Diff line change
@@ -1,58 +1,125 @@
<script>

import { setResolution } from '@lib/chart'
import { chartResolution, chartLoading } from '@lib/stores'
<script>
import { setResolution, toggleChartIndicator } from '@lib/chart'
import { chartResolution, chartLoading, chartIndicators } from '@lib/stores'
import { LOADING_ICON } from '@lib/icons'

</script>
let showIndicators = false;

<style>
const indicatorOptions = [
{key: 'sma20', label: 'SMA 20'},
{key: 'ema20', label: 'EMA 20'},
{key: 'rsi14', label: 'RSI 14'},
{key: 'macd', label: 'MACD'}
];

.chart-bar {
display: flex;
align-items: center;
height: 38px;
grid-gap: 12px;
gap: 12px;
background-color: var(--layer50);
border-radius: var(--base-radius);
padding: 0 16px;
user-select: none;
</script>

<style>

.chart-bar {
display: flex;
align-items: center;
height: 38px;
grid-gap: 12px;
gap: 12px;
background-color: var(--layer50);
border-radius: var(--base-radius);
padding: 0 16px;
user-select: none;
}

a {
font-size: 95%;
transition: all 100ms ease-in-out;
}
a:hover:not(.active) {
color: var(--text100);
}
.active {
color: var(--primary);
}

.chart-bar.loading > a {
pointer-events: none;
}

a {
font-size: 95%;
transition: all 100ms ease-in-out;

.loading-icon {
display: flex;
align-items: center;
justify-content: center;
color: var(--text400);
}
.loading-icon :global(svg) {
width: 18px;
}
.indicators {
position: relative;
}
a:hover:not(.active) {
color: var(--text100);
.indicator-button {
color: var(--text200);
}
.active {
.indicator-button.active {
color: var(--primary);
}

.loading {
pointer-events: none;
.indicator-menu {
position: absolute;
top: 28px;
right: 0;
z-index: 210;
display: grid;
gap: 8px;
min-width: 132px;
padding: 10px;
background-color: var(--layer50);
border: 1px solid var(--layer200);
border-radius: var(--base-radius);
box-shadow: 0 8px 24px rgba(0,0,0,0.28);
}

.loading-icon {
.indicator-option {
display: flex;
align-items: center;
justify-content: center;
color: var(--text400);
gap: 8px;
color: var(--text200);
font-size: 90%;
white-space: nowrap;
cursor: pointer;
}
.loading-icon :global(svg) {
width: 18px;
.indicator-option input {
margin: 0;
}

</style>

<div class='chart-bar' class:loading={$chartLoading}>
<a class:active={$chartResolution == 60} on:click={async () => {await setResolution(60)}}>1m</a>
<a class:active={$chartResolution == 300} on:click={async () => {await setResolution(300)}}>5m</a>
<a class:active={$chartResolution == 900} on:click={async () => {await setResolution(900)}}>15m</a>
<a class:active={$chartResolution == 60} on:click={async () => {await setResolution(60)}}>1m</a>
<a class:active={$chartResolution == 300} on:click={async () => {await setResolution(300)}}>5m</a>
<a class:active={$chartResolution == 900} on:click={async () => {await setResolution(900)}}>15m</a>
<a class:active={$chartResolution == 3600} on:click={async () => {await setResolution(3600)}}>1h</a>
<a class:active={$chartResolution == 14400} on:click={async () => {await setResolution(14400)}}>4h</a>
<a class:active={$chartResolution == 86400} on:click={async () => {await setResolution(86400)}}>1D</a>
<div class='indicators'>
<a
class='indicator-button'
class:active={Object.values($chartIndicators || {}).some(Boolean)}
on:click={() => {showIndicators = !showIndicators}}
>
Indicators
</a>
{#if showIndicators}
<div class='indicator-menu'>
{#each indicatorOptions as option}
<label class='indicator-option'>
<input
type='checkbox'
checked={($chartIndicators || {})[option.key]}
on:change={() => toggleChartIndicator(option.key)}
/>
<span>{option.label}</span>
</label>
{/each}
</div>
{/if}
</div>
{#if $chartLoading}<div class='loading-icon'>{@html LOADING_ICON}</div>{/if}
</div>
</div>
Loading