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Fix dom cursor blink animation and improve readability #5009

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Merged
Tyriar merged 4 commits into from
Mar 16, 2024
Merged

Fix dom cursor blink animation and improve readability #5009

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c78af2b
Fix dom cursor blink animation
Tyriar Mar 16, 2024
18147b2
Fix bar blink animation
Tyriar Mar 16, 2024
7b76ca7
Make dom rendere animation classes more readable
Tyriar Mar 16, 2024
a4f1299
Special case cursor block blink to not use important
Tyriar Mar 16, 2024
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29 changes: 24 additions & 5 deletions src/browser/renderer/dom/DomRenderer.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -183,14 +183,23 @@ export class DomRenderer extends Disposable implements IRenderer {
` font-style: italic;` +
`}`;
// Blink animation
const blinkAnimationUnderlineId = `blink_underline_${this._terminalClass}`;
const blinkAnimationBarId = `blink_bar_${this._terminalClass}`;
const blinkAnimationBlockId = `blink_block_${this._terminalClass}`;
styles +=
`@keyframes blink_box_shadow` + `_` + this._terminalClass + ` {` +
`@keyframes ${blinkAnimationUnderlineId} {` +
` 50% {` +
` border-bottom-style: hidden;` +
` }` +
`}`;
styles +=
`@keyframes blink_block` + `_` + this._terminalClass + ` {` +
`@keyframes ${blinkAnimationBarId} {` +
` 50% {` +
` box-shadow: none;` +
` }` +
`}`;
styles +=
`@keyframes ${blinkAnimationBlockId} {` +
` 0% {` +
` background-color: ${colors.cursor.css};` +
` color: ${colors.cursorAccent.css};` +
Expand All @@ -202,13 +211,23 @@ export class DomRenderer extends Disposable implements IRenderer {
`}`;
// Cursor
styles +=
`${this._terminalSelector} .${ROW_CONTAINER_CLASS}.${FOCUS_CLASS} .${RowCss.CURSOR_CLASS}.${RowCss.CURSOR_BLINK_CLASS}:not(.${RowCss.CURSOR_STYLE_BLOCK_CLASS}) {` +
` animation: blink_box_shadow` + `_` + this._terminalClass + ` 1s step-end infinite;` +
`${this._terminalSelector} .${ROW_CONTAINER_CLASS}.${FOCUS_CLASS} .${RowCss.CURSOR_CLASS}.${RowCss.CURSOR_BLINK_CLASS}.${RowCss.CURSOR_STYLE_UNDERLINE_CLASS} {` +
` animation: ${blinkAnimationUnderlineId} 1s step-end infinite;` +
`}` +
`${this._terminalSelector} .${ROW_CONTAINER_CLASS}.${FOCUS_CLASS} .${RowCss.CURSOR_CLASS}.${RowCss.CURSOR_BLINK_CLASS}.${RowCss.CURSOR_STYLE_BAR_CLASS} {` +
` animation: ${blinkAnimationBarId} 1s step-end infinite;` +
`}` +
`${this._terminalSelector} .${ROW_CONTAINER_CLASS}.${FOCUS_CLASS} .${RowCss.CURSOR_CLASS}.${RowCss.CURSOR_BLINK_CLASS}.${RowCss.CURSOR_STYLE_BLOCK_CLASS} {` +
` animation: blink_block` + `_` + this._terminalClass + ` 1s step-end infinite;` +
` animation: ${blinkAnimationBlockId} 1s step-end infinite;` +
`}` +
// !important helps fix an issue where the cursor will not render on top of the selection,
// however it's very hard to fix this issue and retain the blink animation without the use of
// !important. So this edge case fails when cursor blink is on.
`${this._terminalSelector} .${ROW_CONTAINER_CLASS} .${RowCss.CURSOR_CLASS}.${RowCss.CURSOR_STYLE_BLOCK_CLASS} {` +
` background-color: ${colors.cursor.css};` +
` color: ${colors.cursorAccent.css};` +
`}` +
`${this._terminalSelector} .${ROW_CONTAINER_CLASS} .${RowCss.CURSOR_CLASS}.${RowCss.CURSOR_STYLE_BLOCK_CLASS}:not(.${RowCss.CURSOR_BLINK_CLASS}) {` +
` background-color: ${colors.cursor.css} !important;` +
` color: ${colors.cursorAccent.css} !important;` +
`}` +
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2 changes: 1 addition & 1 deletion test/playwright/SharedRendererTests.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
import { IImage32, decodePng } from '@lunapaint/png-codec';
import { LocatorScreenshotOptions, test } from '@playwright/test';
import { ITheme } from '@xterm/xterm';
import { ITestContext, MaybeAsync, openTerminal, pollFor, pollForApproximate, timeout } from './TestUtils';
import { ITestContext, MaybeAsync, openTerminal, pollFor, pollForApproximate } from './TestUtils';

export interface ISharedRendererTestContext {
value: ITestContext;
Expand Down