fix(menu): not handling keyboard events when opened by mouse #4843

crisbeto · 2017-05-27T12:34:46Z

Fixes the menu keyboard interactions not working when it is opened by a click.

jelbourn · 2017-05-30T16:27:29Z

src/lib/menu/menu-trigger.ts

@@ -104,6 +107,14 @@ export class MdMenuTrigger implements AfterViewInit, OnDestroy {
      this._createOverlay();
      this._overlayRef.attach(this._portal);
      this._subscribeToBackdrop();
+
+      this._globalKeydownHandler = this._renderer.listen('document', 'keydown',


How will this global listener play with, say, a menu inside of a dialog?

Hmm, it'll close both the menu and the dialog. What about focusing the menu panel, instead of the first option, when the menu is opened by mouse?

The options are focused for a11y

Yes, but it seems pretty deliberate that we're not shifting focus when the user opened it by mouse. If we want to keep that behavior, we could opt to move focus to the panel, if the menu was opened by mouse, or focus the first option if it was opened by keyboard. Otherwise we can also focus the first option for all cases.

@kara do you remember why we don't move focus to the options when opening via mouse? If it was just to prevent the focus style from showing, we could probably just do that through css.

I believe it was just for the visual treatment. I don't think there's any reason not to focus the options in itself.

How should I proceed in this case? Given that we also have #4991, should I just enable the keyboard navigation no matter how you opened the menu?

We should make it always focus the options no matter how you open the panel, but only show the initial focus style (before subsequent key presses) when it's triggered by keyboard

crisbeto · 2017-06-18T10:49:41Z

@jelbourn @kara, I got around to reworking this. If the menu was opened by mouse, the panel will receive focus, which allows the user to use escape and go into the options by pressing the arrow keys.

kara · 2017-06-26T23:12:31Z

@crisbeto Can you rebase this?

crisbeto · 2017-06-27T04:26:48Z

Done @kara.

kara

I noticed something odd while testing this. Here's how to repro:

Tab to the menu trigger and hit enter to open.
Navigate down to the second option with the arrow keys.
Hit enter.
Now open the trigger with your mouse.
Hit the down arrow.

The focus will be on the next enabled option (the 4th) rather than resetting focus to the first option.

kara · 2017-06-27T22:19:19Z

src/lib/menu/menu-trigger.ts

+    // If the menu was opened by mouse, we focus the root node, which allows for the keyboard
+    // interactions to work. Otherwise, if the menu was opened by keyboard, we focus the first item.
+    if (this._openedByMouse) {
+      let rootNode = this._overlayRef.overlayElement.firstElementChild as HTMLElement;


The _overlayRef type is sometimes null, so the strictNullCheck in the build is complaining. Add a ! ?

crisbeto · 2017-06-28T20:31:22Z

@kara can you take another look?

kara · 2017-06-29T17:30:08Z

@crisbeto It looks like after you open with the mouse, the first DOWN arrow highlights the second option. @jelbourn and I were thinking the first option might make more sense in that case. Update?

crisbeto · 2017-06-29T17:51:59Z

@kara Implemented the approach as discussed.

kara · 2017-08-15T00:54:35Z

@crisbeto Sorry for the delayed review on this. Do you mind rebasing again?

kara

LGTM

kara · 2017-08-21T20:50:50Z

Note: needs internal updates. Breaking.

Fixes the menu keyboard interactions not working when it is opened by a click. Fixes angular#4991.

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crisbeto added the pr: needs review label May 27, 2017

crisbeto assigned kara May 27, 2017

googlebot added the cla: yes PR author has agreed to Google's Contributor License Agreement label May 27, 2017

willshowell mentioned this pull request May 30, 2017

feat(dialog): expose close attempts #3460

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jelbourn reviewed May 30, 2017

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crisbeto force-pushed the menu-escape branch from d2e11a8 to a5cc967 Compare June 18, 2017 10:47

crisbeto changed the title ~~fix(menu): not closing on escape when opened by mouse~~ fix(menu): not handling keyboard events when opened by mouse Jun 18, 2017

crisbeto force-pushed the menu-escape branch from a5cc967 to 0b4fe40 Compare June 27, 2017 04:26

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crisbeto force-pushed the menu-escape branch from 7b56290 to 6c727fe Compare June 29, 2017 17:51

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crisbeto force-pushed the menu-escape branch from 408a05f to ed99a0a Compare August 27, 2017 16:49

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fix(menu): not handling keyboard events when opened by mouse

7eda6c4

Fixes the menu keyboard interactions not working when it is opened by a click. Fixes angular#4991.

crisbeto force-pushed the menu-escape branch from 25fbc95 to 7eda6c4 Compare October 7, 2017 15:47

andrewseguin merged commit d822a39 into angular:master Oct 10, 2017

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fix(menu): not handling keyboard events when opened by mouse #4843

fix(menu): not handling keyboard events when opened by mouse #4843

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fix(menu): not handling keyboard events when opened by mouse #4843

fix(menu): not handling keyboard events when opened by mouse #4843

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