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Merge pull request #5352 from datvm:linear-progress-buffer
PiperOrigin-RevId: 609528198
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commit
2613de471b
@ -16,8 +16,9 @@ import {Progress} from './progress.js';
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export class LinearProgress extends Progress {
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/**
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* Buffer amount to display, a fraction between 0 and `max`.
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* If the value is 0 or negative, the buffer is not displayed.
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*/
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@property({type: Number}) buffer = 1;
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@property({type: Number}) buffer = 0;
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// Note, the indeterminate animation is rendered with transform %'s
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// Previously, this was optimized to use px calculated with the resizeObserver
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@ -28,16 +29,20 @@ export class LinearProgress extends Progress {
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(this.indeterminate ? 1 : this.value / this.max) * 100
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}%)`,
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};
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const bufferValue = this.buffer ?? 0;
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const hasBuffer = bufferValue > 0;
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const dotSize = this.indeterminate || !hasBuffer ? 1 : bufferValue / this.max;
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const dotStyles = {
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transform: `scaleX(${
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(this.indeterminate ? 1 : this.buffer / this.max) * 100
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}%)`,
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transform: `scaleX(${dotSize * 100}%)`,
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};
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// Only display dots when visible - this prevents invisible infinite
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// animation.
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const hideDots =
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this.indeterminate || this.buffer >= this.max || this.value >= this.max;
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this.indeterminate || !hasBuffer || bufferValue >= this.max || this.value >= this.max;
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return html`
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<div class="dots" ?hidden=${hideDots}></div>
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<div class="inactive-track" style=${styleMap(dotStyles)}></div>
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