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Merge pull request #5352 from datvm:linear-progress-buffer

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PiperOrigin-RevId: 609528198
This commit is contained in:
Copybara-Service 2024-02-22 15:57:48 -08:00
commit 2613de471b
1 changed files with 10 additions and 5 deletions
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15
progress/internal/linear-progress.ts
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@ -16,8 +16,9 @@ import {Progress} from './progress.js';
export class LinearProgress extends Progress {
/**
* Buffer amount to display, a fraction between 0 and `max`.
* If the value is 0 or negative, the buffer is not displayed.
*/
@property({type: Number}) buffer = 1;
@property({type: Number}) buffer = 0;
// Note, the indeterminate animation is rendered with transform %'s
// Previously, this was optimized to use px calculated with the resizeObserver
@ -28,16 +29,20 @@ export class LinearProgress extends Progress {
(this.indeterminate ? 1 : this.value / this.max) * 100
}%)`,
};
const bufferValue = this.buffer ?? 0;
const hasBuffer = bufferValue > 0;
const dotSize = this.indeterminate || !hasBuffer ? 1 : bufferValue / this.max;
const dotStyles = {
transform: `scaleX(${
(this.indeterminate ? 1 : this.buffer / this.max) * 100
}%)`,
transform: `scaleX(${dotSize * 100}%)`,
};
// Only display dots when visible - this prevents invisible infinite
// animation.
const hideDots =
this.indeterminate || this.buffer >= this.max || this.value >= this.max;
this.indeterminate || !hasBuffer || bufferValue >= this.max || this.value >= this.max;
return html`
<div class="dots" ?hidden=${hideDots}></div>
<div class="inactive-track" style=${styleMap(dotStyles)}></div>