Support lightbox gallery navigation via arrow buttons and keyboard

This commit is contained in:
taehoon 2019-02-10 13:23:01 -05:00
parent 4bea3c525f
commit 750c308909
2 changed files with 114 additions and 11 deletions

View file

@ -11,27 +11,62 @@ const MediaModal = {
showing () { showing () {
return this.$store.state.mediaViewer.activated return this.$store.state.mediaViewer.activated
}, },
media () {
return this.$store.state.mediaViewer.media
},
currentIndex () { currentIndex () {
return this.$store.state.mediaViewer.currentIndex return this.$store.state.mediaViewer.currentIndex
}, },
currentMedia () { currentMedia () {
return this.$store.state.mediaViewer.media[this.currentIndex] return this.media[this.currentIndex]
},
canNavigate () {
return this.media.length > 1
}, },
type () { type () {
return this.currentMedia ? fileTypeService.fileType(this.currentMedia.mimetype) : null return this.currentMedia ? fileTypeService.fileType(this.currentMedia.mimetype) : null
} }
}, },
created () {
document.addEventListener('keyup', e => {
if (e.keyCode === 27 && this.showing) { // escape
this.hide()
}
})
},
methods: { methods: {
hide () { hide () {
this.$store.dispatch('closeMediaViewer') this.$store.dispatch('closeMediaViewer')
},
goPrev () {
if (this.canNavigate) {
const prevIndex = this.currentIndex === 0 ? this.media.length - 1 : (this.currentIndex - 1)
this.$store.dispatch('setCurrent', this.media[prevIndex])
}
},
goNext () {
if (this.canNavigate) {
const nextIndex = this.currentIndex === this.media.length - 1 ? 0 : (this.currentIndex + 1)
this.$store.dispatch('setCurrent', this.media[nextIndex])
}
},
handleKeyupEvent (e) {
if (this.showing && e.keyCode === 27) { // escape
this.hide()
}
},
handleKeydownEvent (e) {
if (!this.showing) {
return
}
if (e.keyCode === 39) { // arrow right
this.goNext()
} else if (e.keyCode === 37) { // arrow left
this.goPrev()
}
} }
},
mounted () {
document.addEventListener('keyup', this.handleKeyupEvent)
document.addEventListener('keydown', this.handleKeydownEvent)
},
destroyed () {
document.removeEventListener('keyup', this.handleKeyupEvent)
document.removeEventListener('keydown', this.handleKeydownEvent)
} }
} }

View file

@ -8,6 +8,8 @@
:controls="true" :controls="true"
@click.stop.native=""> @click.stop.native="">
</VideoAttachment> </VideoAttachment>
<button title="Previous" class="modal-view-button-arrow modal-view-button-arrow--prev" v-if="canNavigate" @click.stop.prevent="goPrev"></button>
<button title="Next" class="modal-view-button-arrow modal-view-button-arrow--next" v-if="canNavigate" @click.stop.prevent="goNext"></button>
</div> </div>
</template> </template>
@ -19,15 +21,81 @@
.modal-view { .modal-view {
z-index: 1000; z-index: 1000;
position: fixed; position: fixed;
width: 100vw;
height: 100vh;
top: 0; top: 0;
left: 0; left: 0;
right: 0;
bottom: 0;
display: flex; display: flex;
justify-content: center; justify-content: center;
align-items: center; align-items: center;
background-color: rgba(0, 0, 0, 0.5); background-color: rgba(0, 0, 0, 0.5);
cursor: pointer;
&-button-arrow {
position: absolute;
display: block;
top: 50%;
margin-top: -50px;
width: 70px;
height: 100px;
border: 0;
padding: 0;
opacity: 0;
box-shadow: none;
background: none;
appearance: none;
overflow: visible;
cursor: pointer;
transition: opacity 333ms cubic-bezier(.4,0,.22,1);
&:before {
position: absolute;
top: 35px;
height: 30px;
width: 32px;
font-family: "fontello";
font-size: 14px;
line-height: 30px;
color: #FFF;
text-align: center;
background-color: rgba(0,0,0,.3);
}
&:hover,
&:focus {
outline: none;
box-shadow: none;
}
&#{&}#{&} {
&:hover {
opacity: 1;
}
}
&--prev {
left: 0;
&:before {
left: 6px;
content: '\e80e';
}
}
&--next {
right: 0;
&:before {
right: 6px;
content: '\e80d';
}
}
}
&:hover {
.modal-view-button-arrow {
opacity: .75;
}
}
} }
.modal-image { .modal-image {