Galleria

Galleria is a content gallery component.

Import #


import Galleria from 'primevue/galleria';

Basic #

Galleria requires a value as a collection of images, item template for the higher resolution image and thumbnail template to display as a thumbnail.


<Galleria :value="images" :responsiveOptions="responsiveOptions" :numVisible="5" containerStyle="max-width: 640px">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%" />
    </template>
    <template #thumbnail="slotProps">
        <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" />
    </template>
</Galleria>

Controlled #

Galleria can be controlled programmatically using a binding to activeIndex.


<div>
    <Button icon="pi pi-minus" @click="prev" />
    <Button icon="pi pi-plus" @click="next" severity="secondary" class="ml-2" />
</div>

<Galleria v-model:activeIndex="activeIndex" :value="images" :responsiveOptions="responsiveOptions" :numVisible="5" containerStyle="max-width: 640px">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%" />
    </template>
    <template #thumbnail="slotProps">
        <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" />
    </template>
</Galleria>

Indicator #

Indicators allow quick navigation between the items.

Click Event #

Indicators are displayed at the bottom by enabling showIndicators property and interacted with the click event by default.


<Galleria :value="images" :numVisible="5" containerStyle="max-width: 640px"
    :showThumbnails="false" :showIndicators="true">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
</Galleria>

Hover Event #

Indicators can be activated on hover instead of click if changeItemOnIndicatorHover is added.


<Galleria :value="images" :numVisible="5" containerStyle="max-width: 640px"
    :showThumbnails="false" :showIndicators="true" :changeItemOnIndicatorHover="true">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
</Galleria>

Position #

Indicators can be placed at four different sides using the indicatorsPosition property. In addition, enabling showIndicatorsOnItem moves the indicators inside the image section.


<Galleria :value="images" :numVisible="5" containerStyle="max-width: 640px" :showThumbnails="false"
    :showIndicators="true" :changeItemOnIndicatorHover="true" :showIndicatorsOnItem="inside" :indicatorsPosition="position">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
</Galleria>

Template #

Indicator content can be customized with the indicator property that takes an index as a parameter and expects content.


<Galleria :value="images" :numVisible="5" containerStyle="max-width: 640px" :showThumbnails="false"
    :showIndicators="true" :changeItemOnIndicatorHover="true" :showIndicatorsOnItem="true" indicatorsPosition="left">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
    <template #indicator="{ index }">
        <span style="color: '#ffffff', cursor: pointer">{{ index + 1 }}</span>
    </template>
</Galleria>

Thumbnail #

Thumbnails represent a smaller version of the actual content.


<Galleria :value="images" :responsiveOptions="responsiveOptions" :numVisible="5" :thumbnailsPosition="position" containerStyle="max-width: 640px">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
    <template #thumbnail="slotProps">
        <div class="grid grid-nogutter justify-content-center">
            <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block;" />
        </div>
    </template>
</Galleria>

Responsive #

Settings per screen size is defined via the responsiveOptions property.


<Galleria :value="images" :responsiveOptions="responsiveOptions" :numVisible="5" :circular="true" containerStyle="max-width: 640px">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
    <template #thumbnail="slotProps">
        <div class="grid grid-nogutter justify-content-center">
            <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
        </div>
    </template>
</Galleria>

Full Screen #

In fullscreen mode content covers the whole page over a modal layer.

With Thumbnails #

Full screen mode is enabled by adding fullScreen property and and visibility is controlled with a binding to visible property.


<Galleria v-model:visible="displayBasic" :value="images" :responsiveOptions="responsiveOptions" :numVisible="9" containerStyle="max-width: 50%" :circular="true" :fullScreen="true" :showItemNavigators="true">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
    <template #thumbnail="slotProps">
        <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="display: block" />
    </template>
</Galleria>

<Button label="Show" icon="pi pi-external-link" @click="displayBasic = true" />

Without Thumbnails #

Thumbnails can also be hidden in full screen mode.


<Galleria v-model:visible="displayBasic" :value="images" :responsiveOptions="responsiveOptions" :numVisible="9" containerStyle="max-width: 50%" :circular="true" :fullScreen="true" :showItemNavigators="true"  :showThumbnails="false">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
    <template #thumbnail="slotProps">
        <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="display: block" />
    </template>
</Galleria>

<Button label="Show" icon="pi pi-external-link" @click="displayBasic = true" />

Custom Content #

Using activeIndex, Galleria is displayed with a specific initial image.


<Galleria v-model:activeIndex="activeIndex" v-model:visible="displayCustom" :value="images" :responsiveOptions="responsiveOptions" :numVisible="7"
    containerStyle="max-width: 850px" :circular="true" :fullScreen="true" :showItemNavigators="true" :showThumbnails="false">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
    <template #thumbnail="slotProps">
        <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="display: block" />
    </template>
</Galleria>

Navigator #

Navigators are used to move back and forth between the images.

With Thumbnails #

Add showItemNavigators to display navigator elements and the left and right side.


<Galleria :value="images" :responsiveOptions="responsiveOptions" :numVisible="5" :circular="true" containerStyle="max-width: 640px"
    :showItemNavigators="true">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block;" />
    </template>
    <template #thumbnail="slotProps">
        <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="display: block;" />
    </template>
</Galleria>

Without Thumbnails #

Simple example with indicators only.


<Galleria :value="images" :responsiveOptions="responsiveOptions" :numVisible="5" :circular="true" containerStyle="max-width: 640px"
    :showItemNavigators="true" :showThumbnails="false">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block;" />
    </template>
    <template #thumbnail="slotProps">
        <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="display: block;" />
    </template>
</Galleria>

Display on Hover #

Navigators are displayed on hover only if showItemNavigatorsOnHover is enabled.


<Galleria :value="images" :responsiveOptions="responsiveOptions" :numVisible="5" :circular="true" containerStyle="max-width: 640px" :showItemNavigators="true" :showItemNavigatorsOnHover="true">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
    <template #thumbnail="slotProps">
        <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="display: block" />
    </template>
</Galleria>

With Indicators #

Navigators and Indicators can be combined as well.


<Galleria :value="images" :responsiveOptions="responsiveOptions" :numVisible="5" :circular="true" containerStyle="max-width: 640px"
    :showItemNavigators="true" :showThumbnails="false" :showItemNavigatorsOnHover="true" :showIndicators="true">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block;" />
    </template>
    <template #thumbnail="slotProps">
            <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="display: block;" />
    </template>
</Galleria>

AutoPlay #

A slideshow implementation is defined by adding circular and autoPlay properties.


<Galleria :value="images" :responsiveOptions="responsiveOptions" :numVisible="5" containerStyle="max-width: 640px"
    :circular="true" :autoPlay="true" :transitionInterval="2000">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
    <template #thumbnail="slotProps">
        <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="display: block" />
    </template>
</Galleria>

Caption #

Description of an image is specified with the caption property that takes the displayed object and returns content.


<Galleria :value="images" :responsiveOptions="responsiveOptions" :numVisible="5" containerStyle="max-width: 640px">
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" style="width: 100%; display: block" />
    </template>
    <template #thumbnail="slotProps">
        <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="display: block" />
    </template>
    <template #caption="slotProps">
        <div class="text-xl mb-2 font-bold">{{ slotProps.item.title }}</div>
        <p class="text-white">{{ slotProps.item.alt }}</p>
    </template>
</Galleria>

Advanced #

Advanced Galleria implementation with a custom UI.


<Galleria
    ref="galleria"
    v-model:activeIndex="activeIndex"
    :value="images"
    :numVisible="5"
    containerStyle="max-width: 640px"
    :showThumbnails="showThumbnails"
    :showItemNavigators="true"
    :showItemNavigatorsOnHover="true"
    :circular="true"
    :autoPlay="isAutoPlay"
    :transitionInterval="3000"
    :responsiveOptions="responsiveOptions"
    :pt="{
        root: {
            class: [{ 'flex flex-column': fullScreen }]
        },
        content: {
            class: ['relative', { 'flex-1 justify-content-center': fullScreen }]
        },

        thumbnailwrapper: 'absolute w-full left-0 bottom-0'
    }"
>
    <template #item="slotProps">
        <img :src="slotProps.item.itemImageSrc" :alt="slotProps.item.alt" :style="[{ width: !fullScreen ? '100%' : '', display: !fullScreen ? 'block' : '' }]" />
    </template>
    <template #thumbnail="slotProps">
        <div class="grid grid-nogutter justify-content-center">
            <img :src="slotProps.item.thumbnailImageSrc" :alt="slotProps.item.alt" style="display: block" />
        </div>
    </template>
    <template #footer>
        <div class="flex align-items-center bg-black-alpha-90 text-white">
            <Button icon="pi pi-list" @click="onThumbnailButtonClick" :pt="{ root: { class: 'border-none border-noround hover:bg-white-alpha-10 text-white', style: 'background: transparent' } }" />
            <Button :icon="slideButtonIcon" @click="toggleAutoSlide" :pt="{ root: { class: 'border-none border-noround hover:bg-white-alpha-10 text-white', style: 'background: transparent' } }" />
            <span v-if="images" class="title-container">
                <span class="text-sm p-3">{{ activeIndex + 1 }}/{{ images.length }}</span>
                <span class="font-bold text-sm p-3">{{ images[activeIndex].title }}</span>
                <span class="text-sm p-3">{{ images[activeIndex].alt }}</span>
            </span>
            <Button :icon="fullScreenIcon" @click="toggleFullScreen" :pt="{ root: { class: 'border-none border-noround ml-auto hover:bg-white-alpha-10 text-white', style: 'background: transparent' } }" />
        </div>
    </template>
</Galleria>

Accessibility #

Screen Reader

Galleria uses region role and since any attribute is passed to the main container element, attributes such as aria-label and aria-roledescription can be used as well. The slides container has aria-live attribute set as "polite" if galleria is not in autoplay mode, otherwise "off" would be the value in autoplay.

A slide has a group role with an aria-label that refers to the aria.slideNumber property of the locale API. Similarly aria.slide is used as the aria-roledescription of the item. Inactive slides are hidden from the readers with aria-hidden.

Next and Previous navigators are button elements with aria-label attributes referring to the aria.prevPageLabel and aria.nextPageLabel properties of the locale API by default respectively, you may still use your own aria roles and attributes as any valid attribute is passed to the button elements implicitly by using nextButtonProps and prevButtonProps.

Quick navigation elements and thumnbails follow the tab pattern. They are placed inside an element with a tablist role whereas each item has a tab role with aria-selected and aria-controls attributes. The aria-label attribute of a quick navigation item refers to the aria.pageLabel of the locale API. Current page is marked with aria-current.

In full screen mode, modal element uses dialog role with aria-modal enabled. The close button retrieves aria-label from the aria.close property of the locale API.

Next/Prev Keyboard Support

Key	Function
tab	Moves focus through interactive elements in the carousel.
enter	Activates navigation.
space	Activates navigation.

Quick Navigation Keyboard Support

Key	Function
tab	Moves focus through the active slide link.
enter	Activates the focused slide link.
space	Activates the focused slide link.
right arrow	Moves focus to the next slide link.
left arrow	Moves focus to the previous slide link.
home	Moves focus to the first slide link.
end	Moves focus to the last slide link.

Galleria

Import #

Basic #

Controlled #

Indicator #

Click Event #

Hover Event #

Position #

Template #

Thumbnail #

Responsive #

Full Screen #

With Thumbnails #

Without Thumbnails #

Custom Content #

Navigator #

With Thumbnails #

Without Thumbnails #

Display on Hover #

With Indicators #

AutoPlay #

Caption #

Advanced #

Accessibility #

Screen Reader

Next/Prev Keyboard Support

Quick Navigation Keyboard Support

Galleria API