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Update a11y rows on scroll

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Daniel Imms
2018-01-11 23:15:02 -08:00
parent 2311d7d66b
commit 2a187a26e0
1 changed files with 11 additions and 1 deletions
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src/AccessibilityManager.ts
+11 -1
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@@ -60,6 +60,7 @@ export class AccessibilityManager implements IDisposable {
this._addTerminalEventListener('resize', data => this._onResize(data.cols, data.rows));
this._addTerminalEventListener('refresh', data => this._refreshRows(data.start, data.end));
this._addTerminalEventListener('scroll', data => this._refreshRows());
// Line feed is an issue as the prompt won't be read out after a command is run
this._addTerminalEventListener('a11y.char', (char) => this._onChar(char));
this._addTerminalEventListener('linefeed', () => this._onChar('\n'));
@@ -224,7 +225,7 @@ export class AccessibilityManager implements IDisposable {
private _renderRows(start: number, end: number): void {
const buffer: IBuffer = (<any>this._terminal.buffer);
for (let i = start; i <= end; i++) {
const lineData = buffer.translateBufferLineToString(buffer.ybase + i, true);
const lineData = buffer.translateBufferLineToString(buffer.ydisp + i, true);
this._rowElements[i].textContent = lineData;
this._rowElements[i].setAttribute('aria-label', lineData);
}
@@ -263,6 +264,15 @@ export class AccessibilityManager implements IDisposable {
}
private _navigateToElement(row: number): void {
if (row < 0) {
if (this._terminal.buffer.ydisp > 0) {
this._terminal.scrollLines(-1);
row = 0;
// TODO: This doesn't reliably read the element, maybe a new row needs to be inserted at the top?
// Exit early since the same element is focused
return;
}
}
// TODO: Store this state
const selected = document.querySelector('#' + this._activeItemId);
if (selected) {