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Image: Improve focus management in lightbox #55428

Merged
merged 9 commits into from
Oct 20, 2023
Merged

Image: Improve focus management in lightbox #55428

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969d1e5
Improve focus management
artemiomorales Oct 17, 2023
d0d49ca
Add delay before focusing when closing lightbox
artemiomorales Oct 17, 2023
40b7b57
Put focus back on close button when opening lightbox
artemiomorales Oct 18, 2023
ab653a4
Move focus to the dialog when opening the lightbox.
afercia Oct 19, 2023
a438bd3
Fix SVG markup.
afercia Oct 19, 2023
af376c1
Consistent indentation with spaces.
afercia Oct 19, 2023
6c1090a
Remove unnecessary tabindex
artemiomorales Oct 19, 2023
8057724
Merge branch 'trunk' into fix/lightbox-focus
artemiomorales Oct 19, 2023
c69494b
Merge branch 'trunk' into fix/lightbox-focus
artemiomorales Oct 19, 2023
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5 changes: 4 additions & 1 deletion packages/block-library/src/image/index.php
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Original file line number Diff line number Diff line change
Expand Up @@ -218,6 +218,7 @@ function block_core_image_render_lightbox( $block_content, $block ) {
)
);
$w->next_tag( 'img' );
$w->set_attribute( 'tabindex', '-1' );
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$w->set_attribute( 'data-wp-init', 'effects.core.image.initOriginImage' );
$w->set_attribute( 'data-wp-on--load', 'actions.core.image.handleLoad' );
$w->set_attribute( 'data-wp-effect', 'effects.core.image.setButtonStyles' );
Expand All @@ -235,6 +236,7 @@ function block_core_image_render_lightbox( $block_content, $block ) {
$button =
$img[0]
. '<button
class="lightbox-trigger"
type="button"
aria-haspopup="dialog"
aria-label="' . esc_attr( $aria_label ) . '"
Expand All @@ -243,7 +245,7 @@ function block_core_image_render_lightbox( $block_content, $block ) {
data-wp-style--top="context.core.image.imageButtonTop"
style="background: #000"
>
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" aria-hidden="true" focusable="false">
<path d="M9 5H5V9" stroke="#FFFFFF" stroke-width="1.5"/>
<path d="M15 19L19 19L19 15" stroke="#FFFFFF" stroke-width="1.5"/>
<path d="M15 5H19V9" stroke="#FFFFFF" stroke-width="1.5"/>
Expand Down Expand Up @@ -322,6 +324,7 @@ function block_core_image_render_lightbox( $block_content, $block ) {
data-wp-on--touchmove="actions.core.image.handleTouchMove"
data-wp-on--touchend="actions.core.image.handleTouchEnd"
data-wp-on--click="actions.core.image.hideLightbox"
tabindex="-1"
>
<button type="button" aria-label="$close_button_label" style="fill: $close_button_color" class="close-button" data-wp-on--click="actions.core.image.hideLightbox">
$close_button_icon
Expand Down
32 changes: 13 additions & 19 deletions packages/block-library/src/image/view.js
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Original file line number Diff line number Diff line change
Expand Up @@ -135,7 +135,7 @@ store(
false
);
},
hideLightbox: async ( { context, event } ) => {
hideLightbox: async ( { context } ) => {
context.core.image.hideAnimationEnabled = true;
if ( context.core.image.lightboxEnabled ) {
// We want to wait until the close animation is completed
Expand All @@ -149,19 +149,15 @@ store(
'scroll',
scrollCallback
);
// If we don't delay before changing the focus,
// the focus ring will appear on Firefox before
// the image has finished animating, which looks broken.
context.core.image.lightboxTriggerRef.focus( {
preventScroll: true,
} );
}, 450 );

context.core.image.lightboxEnabled = false;

// We want to avoid drawing attention to the button
// after the lightbox closes for mouse and touch users.
// Note that the `event.pointerType` property returns
// as an empty string if a keyboard fired the event.
if ( event.pointerType === '' ) {
context.core.image.lastFocusedElement.focus( {
preventScroll: true,
} );
}
}
},
handleKeydown: ( { context, actions, event } ) => {
Expand Down Expand Up @@ -266,6 +262,10 @@ store(
image: {
initOriginImage: ( { context, ref } ) => {
context.core.image.imageRef = ref;
context.core.image.lightboxTriggerRef =
ref.parentElement.querySelector(
'.lightbox-trigger'
);
if ( ref.complete ) {
context.core.image.imageLoaded = true;
context.core.image.imageCurrentSrc = ref.currentSrc;
Expand All @@ -282,14 +282,8 @@ store(
focusableElements.length - 1
];

// We want to avoid drawing unnecessary attention to the close
// button for mouse and touch users. Note that even if opening
// the lightbox via keyboard, the event fired is of type
// `pointerEvent`, so we need to rely on the `event.pointerType`
// property, which returns an empty string for keyboard events.
if ( context.core.image.pointerType === '' ) {
ref.querySelector( '.close-button' ).focus();
}
// Move focus to the dialog when opening it.
ref.focus();
}
},
setButtonStyles: ( { context, ref } ) => {
Expand Down
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