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Fix tab trap in menubar #373

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merged 4 commits into from
Aug 24, 2022
Merged

Fix tab trap in menubar #373

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911f4b0
Fix tab trap in menubar
gabalafou Aug 10, 2022
18176c2
update test code
gabalafou Aug 23, 2022
83b0e0b
Apply suggestions from code review
gabalafou Aug 23, 2022
c2ea586
Fix documentation link
fcollonval Aug 23, 2022
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11 changes: 8 additions & 3 deletions packages/widgets/src/menubar.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -411,13 +411,18 @@ export class MenuBar extends Widget {
* Handle the `'keydown'` event for the menu bar.
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*/
private _evtKeyDown(event: KeyboardEvent): void {
// Fetch the key code for the event.
let kc = event.keyCode;

// Do not trap the tab key.
if (kc === 9) {
return;
}

// A menu bar handles all keydown events.
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event.preventDefault();
event.stopPropagation();

// Fetch the key code for the event.
let kc = event.keyCode;

// Enter, Up Arrow, Down Arrow
if (kc === 13 || kc === 38 || kc === 40) {
this.openActiveMenu();
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6 changes: 6 additions & 0 deletions packages/widgets/tests/src/menubar.spec.ts
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Expand Up @@ -469,6 +469,12 @@ describe('@lumino/widgets', () => {
});

context('keydown', () => {
it('should bail on Tab', () => {
let event = new KeyboardEvent('keydown', { keyCode: 9 });
bar.node.dispatchEvent(event);
expect(event.defaultPrevented).to.equal(false);
});

it('should open the active menu on Enter', () => {
let menu = bar.activeMenu!;
bar.node.dispatchEvent(
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