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<template>
<div :style="styles" @wheel.stop="onWheelEvt">
<tol-tile v-for="(node, idx) in dummyNodes" :key="node.name" class="shrink-0"
:layoutNode="node" :tolMap="tolMap" :nonAbsPos="true" :lytOpts="lytOpts" :uiOpts="uiOpts"
@leaf-click="onTileClick(nodes[idx])" @info-click="onInfoIconClick"/>
</div>
</template>
<script lang="ts">
import {defineComponent, PropType} from 'vue';
import TolTile from './TolTile.vue';
import {TolMap} from '../tol';
import {LayoutNode, LayoutOptions} from '../layout';
import {UiOptions} from '../lib';
export default defineComponent({
props: {
nodes: {type: Array as PropType<LayoutNode[]>, required: true},
vert: {type: Boolean, default: false},
breadth: {type: Number, required: true},
// Other
lytOpts: {type: Object as PropType<LayoutOptions>, required: true},
uiOpts: {type: Object as PropType<UiOptions>, required: true},
tolMap: {type: Object as PropType<TolMap>, required: true},
},
computed: {
imgSz(){
return this.breadth - this.lytOpts.tileSpacing - this.uiOpts.scrollGap;
// Intentionally omitting extra tileSpacing, to allow for scrollGap with less image shrinkage
},
dummyNodes(){ // Childless versions of 'nodes' used to parameterise <tol-tile>s
return this.nodes.map(n => {
let newNode = new LayoutNode(n.name, []);
newNode.dims = [this.imgSz, this.imgSz];
return newNode;
});
},
styles(): Record<string,string> {
return {
// For child layout
display: 'flex',
flexDirection: this.vert ? 'column' : 'row',
alignItems: 'center',
gap: this.lytOpts.tileSpacing + 'px',
padding: this.lytOpts.tileSpacing + 'px',
overflowX: this.vert ? 'hidden' : 'auto',
overflowY: this.vert ? 'auto' : 'hidden',
// Other
backgroundColor: this.uiOpts.ancestryBarBgColor,
boxShadow: this.uiOpts.shadowNormal,
};
},
},
methods: {
// Click events
onTileClick(node: LayoutNode){
this.$emit('ancestor-click', node);
},
onInfoIconClick(data: string){
this.$emit('info-click', data);
},
// For converting vertical scrolling to horizontal
onWheelEvt(evt: WheelEvent){
if (!this.vert && Math.abs(evt.deltaX) < Math.abs(evt.deltaY)){
this.$el.scrollLeft -= (evt.deltaY > 0 ? -30 : 30);
}
},
// Other
scrollToEnd(){
if (this.vert){
this.$el.scrollTop = this.$el.scrollHeight;
} else {
this.$el.scrollLeft = this.$el.scrollWidth;
}
},
},
watch: {
// For scrolling-to-end upon node/screen changes
nodes(){
this.$nextTick(() => this.scrollToEnd());
},
vert(){
this.$nextTick(() => this.scrollToEnd());
},
},
mounted(){
this.scrollToEnd();
},
components: {TolTile, },
emits: ['ancestor-click', 'info-click', ],
});
</script>
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