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<script>
import {defaultLayout} from './layout.js';
let lastChangedTile = null; //used to increase TileTree z-index during a transition
function updateZForTransition(tileTree){
if (lastChangedTile !== null){
lastChangedTile.zIdx = 0;
}
tileTree.zIdx = 1;
lastChangedTile = tileTree;
}
export default {
name: 'tile-tree',
data(){
return {
zIdx: 0,
layoutSys: defaultLayout,
}
},
props: {
tree: Object,
x: Number,
y: Number,
width: Number,
height: Number,
isRoot: Boolean,
},
computed: {
layout(){
if (this.tree.children.length == 0)
return {};
let hOffset = (this.isRoot ? 0 : this.layoutSys.HEADER_SZ);
let x = 0, y = hOffset, w = this.width, h = this.height - hOffset;
return this.layoutSys.genLayout(this.tree.children, 0, hOffset, this.width, this.height - hOffset);
}
},
methods: {
onImgClick(){
if (!this.isRoot){
this.$emit('tile-clicked', [this.tree]);
} else {
this.onInnerTileClicked([this.tree]);
}
updateZForTransition(this);
},
onInnerTileClicked(nodeList){
if (!this.isRoot){
this.$emit('tile-clicked', [...nodeList, this.tree]);
} else { //nodeList will hold an array of tree-objects, from the clicked-on-tile's tree-object upward
let numNewTiles = nodeList[0].tolNode.children.length;
if (numNewTiles == 0){
console.log('Tile-to-expand has no children');
return;
}
//add children
nodeList[0].children = nodeList[0].tolNode.children.map(e => ({
tolNode: e,
children: [],
}));
this.layoutSys.updateLayoutInfoOnExpand(nodeList);
}
},
onHeaderClick(){
this.$emit('header-clicked', [this.tree]);
updateZForTransition(this);
},
onInnerHeaderClicked(nodeList){
if (!this.isRoot){
this.$emit('header-clicked', [...nodeList, this.tree]);
} else { //nodeList will hold an array of tree-objects, from the clicked-on-tile's tree-object upward
this.layoutSys.updateLayoutInfoOnCollapse(nodeList);
nodeList[0].children = [];
}
}
}
}
</script>
<template>
<div
:style="{position: 'absolute', left: x+'px', top: y+'px', width: width+'px', height: height+'px', zIndex: zIdx}"
class="transition-[left,top,width,height] duration-300 ease-out border border-stone-900 bg-white">
<img v-if="tree.children.length == 0"
:src="'/src/assets/' + tree.tolNode.name + '.jpg'" :alt="tree.tolNode.name"
class="h-full hover:cursor-pointer" @click="onImgClick"
/>
<div v-else>
<div v-if="!isRoot" :style="{height: this.layoutSys.HEADER_SZ + 'px'}"
class="text-center hover:cursor-pointer bg-stone-300" @click="onHeaderClick">
{{tree.tolNode.name}}
</div>
<tile-tree v-for="child in tree.children" :key="child.tolNode.name" :tree="child"
:x="layout[child.tolNode.name].x" :y="layout[child.tolNode.name].y"
:width="layout[child.tolNode.name].w" :height="layout[child.tolNode.name].h"
@tile-clicked="onInnerTileClicked" @header-clicked="onInnerHeaderClicked"
></tile-tree>
</div>
</div>
</template>
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