waveterm/xterm.js
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use textbox instead of div for accessibility buffer (#4377)

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This commit is contained in:
Megan Rogge
2023-01-20 17:36:25 +00:00
committed by GitHub
parent 9895691e0e
commit b24bda92ad
1 changed files with 13 additions and 15 deletions
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src/browser/AccessibilityManager.ts
+13 -15
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@@ -28,7 +28,7 @@ export class AccessibilityManager extends Disposable {
private _rowElements: HTMLElement[];
private _liveRegion: HTMLElement;
private _liveRegionLineCount: number = 0;
private _accessiblityBuffer: HTMLElement;
private _accessiblityBuffer: HTMLTextAreaElement;
private _renderRowsDebouncer: IRenderDebouncer;
private _screenDprMonitor: ScreenDprMonitor;
@@ -89,7 +89,7 @@ export class AccessibilityManager extends Disposable {
throw new Error('Cannot enable accessibility before Terminal.open');
}
this._accessiblityBuffer = document.createElement('div');
this._accessiblityBuffer = document.createElement('textarea');
this._accessiblityBuffer.ariaLabel = Strings.accessibilityBuffer;
this._accessiblityBuffer.classList.add('xterm-accessibility-buffer');
this._accessiblityBuffer.contentEditable = 'true';
@@ -323,25 +323,23 @@ export class AccessibilityManager extends Disposable {
return;
}
const { bufferElements, cursorElement } = this._terminal.viewport.getBufferElements(0);
const { bufferElements } = this._terminal.viewport.getBufferElements(0);
const content = [];
for (const element of bufferElements) {
if (element.textContent) {
element.textContent = element.textContent.replace(new RegExp(' ', 'g'), '\xA0');
content.push(element.textContent.replace(new RegExp(' ', 'g'), '\xA0'));
}
}
this._accessiblityBuffer.ariaRoleDescription = 'document';
this._accessiblityBuffer.replaceChildren(...bufferElements);
this._accessiblityBuffer.textContent = content.join('\n');
this._accessiblityBuffer.tabIndex = 0;
this._accessiblityBuffer.ariaRoleDescription = 'textbox';
this._accessibilityTreeRoot.spellcheck = false;
this._accessiblityBuffer.scrollTop = this._accessiblityBuffer.scrollHeight;
const s = document.getSelection();
if (s && cursorElement) {
s.removeAllRanges();
const r = document.createRange();
r.selectNode(bufferElements[bufferElements.length - 1]);
r.setStart(cursorElement, 0);
r.setEnd(cursorElement, 0);
s.addRange(r);
}
this._accessiblityBuffer.focus();
const end = this._accessiblityBuffer.value.length;
this._accessiblityBuffer.scrollTop = this._accessiblityBuffer.scrollHeight;
this._accessiblityBuffer.setSelectionRange(end, end);
}
private _handleColorChange(colorSet: ReadonlyColorSet): void {